@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg: #f6f4ef;
  --surface: #fffdf8;
  --surface-2: #efe8d9;
  --text: #161616;
  --muted: #5f5a53;
  --primary: #0f7b6c;
  --accent: #ff7a18;
  --study: #2f6fed;
  --mock: #145a7e;
  --notes: #0f7b6c;
  --roadmap: #1f7f55;
  --leaderboard: #8c2ad8;
  --profile: #006e8f;
  --achievements: #f9a825;
  --community: #00a8a8;
  --settings: #5553a9;
  --notifications: #007acc;
  --cert: #03614a;
  --forum: #9f2f72;
  --referral: #7b3f00;
  --support: #0f766e;
  --feedback: #2d6a8c;
  --contributions: #7c2d12;
  --ai: #6366f1;
  --ring: rgba(15, 123, 108, 0.22);
  --ok: #16a34a;
  --warn: #ea580c;
  --danger: #c6342d;
  --easy: #d8f5df;
  --medium: #fff4d6;
  --hard: #ffdfe0;
  --radius: 16px;
  
  /* Elevation Shadow System */
  --shadow-none: none;
  --shadow-xs: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.08);
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 64px rgba(0, 0, 0, 0.15);
  
  /* Easing Functions */
  --ease-smooth: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  box-sizing: border-box;
}

/* Global responsive safety rails: prevent media overflow on narrow screens. */
img,
svg,
video,
canvas,
iframe {
  max-width: 100%;
}

img,
svg,
video,
canvas {
  height: auto;
}

body {
  margin: 0;
  font-family: 'IBM Plex Sans', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% -5%, rgba(47, 111, 237, 0.12) 0%, transparent 35%),
    radial-gradient(circle at 95% 5%, rgba(217, 241, 233, 0.08) 0%, transparent 30%),
    radial-gradient(circle at 5% 95%, rgba(255, 229, 208, 0.08) 0%, transparent 35%),
    linear-gradient(180deg, #f8f7f5 0%, #f3f0eb 100%);
  min-height: 100vh;
}

h1,
h2,
h3,
h4 {
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: -0.02em;
  margin: 0;
  font-weight: 700;
}

h1 { font-size: 2.5rem; line-height: 1.1; }
h2 { font-size: 1.875rem; line-height: 1.2; }
h3 { font-size: 1.25rem; line-height: 1.3; }
h4 { font-size: 1.05rem; line-height: 1.4; }

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
  transition: grid-template-columns 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
  background: linear-gradient(135deg, #f6f4ef 0%, #faf8f6 100%);
}

.app-shell.sidebar-collapsed {
  grid-template-columns: 88px 1fr;
}

.main-area {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.6) 0%, rgba(255, 255, 255, 0) 60%), linear-gradient(135deg, #f6f4ef 0%, #faf8f6 100%);
}

.sidebar {
  padding: 18px 14px;
  border-right: 1px solid rgba(0, 0, 0, 0.08);
  background: linear-gradient(180deg, #fdfcfb 0%, #f9f7f4 100%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  box-shadow: 4px 0 16px rgba(0, 0, 0, 0.06), inset -1px 0 0 rgba(255, 255, 255, 0.6);
  transition: all 200ms var(--ease-smooth);
}

.sidebar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 10% 0%, rgba(47, 111, 237, 0.04) 0%, transparent 45%), radial-gradient(circle at 15% 100%, rgba(15, 123, 108, 0.04) 0%, transparent 40%);
  pointer-events: none;
  border-radius: 0;
}

.logo {
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-items: flex-start;
  font-family: 'Space Grotesk', sans-serif;
  padding: 8px 0;
}

.logo i {
  color: var(--primary);
  font-size: 1.8rem;
  margin-bottom: 4px;
}

.logo span {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--primary) 0%, #2f6fed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo::after {
  content: 'Learning Platform';
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9ca3af;
  font-weight: 500;
  margin-top: 2px;
}

.sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 4px 20px 4px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  margin-bottom: 12px;
}

.sidebar-toggle {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  border: 1.2px solid rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.94);
  color: #6b7280;
  cursor: pointer;
  transition: all 180ms var(--ease-smooth);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.sidebar-toggle:hover {
  transform: scale(1.08);
  background: #fff;
  color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 6px 16px rgba(15, 123, 108, 0.15);
}

.sidebar-toggle:active {
  transform: scale(0.96);
}

.sidebar-nav-wrap {
  flex: 1;
  overflow-y: auto;
  padding-right: 2px;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 0, 0, 0.1) transparent;
}

.sidebar-nav-wrap::-webkit-scrollbar {
  width: 6px;
}

.sidebar-nav-wrap::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-nav-wrap::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
  border-radius: 3px;
}

.sidebar-nav-wrap::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.15);
}

.nav-list {
  display: grid;
  gap: 20px;
}

.nav-group {
  display: grid;
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.nav-group:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.nav-group-title {
  margin: 0;
  padding: 0 12px;
  font-size: 0.65rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: rgb(166, 163, 153);
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 240ms ease;
  opacity: 0.88;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 10px;
  font-weight: 500;
  font-size: 0.93rem;
  color: #6b7280;
  border-left: 3px solid transparent;
  position: relative;
  transition: all 180ms var(--ease-smooth);
  cursor: pointer;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 123, 108, 0.04);
  opacity: 0;
  transition: opacity 200ms ease;
  border-radius: 10px;
  z-index: -1;
}

.nav-link i {
  width: 20px;
  text-align: center;
  font-size: 1.05rem;
  transition: transform 160ms var(--ease-smooth), color 160ms ease, filter 160ms ease;
  flex-shrink: 0;
}

.nav-link .nav-label {
  flex: 1;
  font-size: 0.93rem;
  letter-spacing: -0.01em;
}

.nav-link:hover {
  background: rgba(15, 123, 108, 0.08);
  color: #374151;
  transform: translateX(3px);
  border-left-color: var(--primary);
}

.nav-link-action {
  width: 100%;
  text-align: left;
  background: transparent;
  border-top: none;
  border-right: none;
  border-bottom: none;
}

.nav-link-action .nav-label {
  text-align: left;
}

.nav-link.has-live {
  border-left-color: #1a73e8;
  color: #1f2937;
}

.nav-link.has-live i {
  color: #1a73e8 !important;
}

.nav-link.has-live::after {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #1a73e8;
  box-shadow: 0 0 0 0 rgba(26, 115, 232, 0.45);
  animation: livePulse 1.8s ease-out infinite;
  flex-shrink: 0;
}

.nav-link:hover i {
  transform: scale(1.1);
  color: var(--primary) !important;
  filter: drop-shadow(0 0 6px rgba(15, 123, 108, 0.3));
}

.nav-link.active {
  background: linear-gradient(90deg, rgba(15, 123, 108, 0.15), rgba(15, 123, 108, 0.06));
  color: var(--text);
  border-left-color: var(--primary);
  font-weight: 600;
  box-shadow: inset -2px 0 12px rgba(15, 123, 108, 0.12), var(--shadow-xs);
}

.nav-link.active i {
  color: var(--primary) !important;
  transform: scale(1.15);
  filter: drop-shadow(0 0 8px rgba(15, 123, 108, 0.4));
}

.nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  border-radius: 999px;
  padding: 0 6px;
  background: #d92d20;
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
}

.live-hub-panel {
  position: fixed;
  top: 88px;
  right: 24px;
  z-index: 80;
  width: min(460px, calc(100vw - 32px));
  max-height: calc(100vh - 120px);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px) scale(0.985);
  transition: opacity 180ms var(--ease-standard), transform 180ms var(--ease-standard);
}

.live-hub-panel.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

.live-hub-shell {
  display: grid;
  gap: 14px;
  padding: 16px;
  border-radius: 24px;
  border: 1px solid rgba(226, 232, 240, 0.7);
  background: linear-gradient(160deg, rgba(248, 251, 255, 0.86), rgba(255, 255, 255, 0.7));
  backdrop-filter: blur(22px) saturate(160%);
  box-shadow: 0 28px 60px rgba(15, 23, 42, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.live-hub-head,
.live-hub-chat-head,
.live-hub-stage-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

.live-hub-kicker {
  margin: 0 0 6px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #1a73e8;
}

.live-hub-shell h3,
.live-hub-stage-shell h2 {
  margin: 0;
  color: #0f172a;
}

.live-hub-subtitle {
  margin: 6px 0 0;
  color: #51627a;
  font-size: 0.93rem;
  line-height: 1.45;
}

.live-hub-close {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  background: rgba(255, 255, 255, 0.78);
  color: #1f2937;
  cursor: pointer;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08);
  transition: transform 160ms var(--ease-smooth), background 160ms ease, box-shadow 160ms ease;
}

.live-hub-close:hover {
  transform: translateY(-1px);
  background: #fff;
  box-shadow: 0 10px 18px rgba(15, 23, 42, 0.12);
}

.live-hub-status-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.live-hub-status-chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.28rem 0.68rem;
  font-size: 0.74rem;
  font-weight: 700;
  color: #0f172a;
  background: rgba(26, 115, 232, 0.1);
  border: 1px solid rgba(26, 115, 232, 0.16);
}

.live-hub-status-chip.soft {
  background: rgba(15, 23, 42, 0.05);
  border-color: rgba(148, 163, 184, 0.2);
  color: #51627a;
}

.live-hub-tabs {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  border-radius: 16px;
  background: rgba(226, 232, 240, 0.45);
}

.live-hub-tab {
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  padding: 0.64rem 0.9rem;
  font-weight: 700;
  color: #51627a;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.live-hub-tab:hover {
  transform: translateY(-1px);
  color: #0f172a;
}

.live-hub-tab.is-active {
  color: #fff;
  background: linear-gradient(135deg, #1a73e8 0%, #4c8df4 100%);
  box-shadow: 0 10px 18px rgba(26, 115, 232, 0.22);
}

.live-hub-content {
  display: grid;
  gap: 12px;
  max-height: min(62vh, 600px);
  overflow: auto;
  padding-right: 2px;
}

.live-hub-session-card {
  display: grid;
  gap: 10px;
  border-radius: 18px;
  padding: 14px;
  border: 1px solid rgba(226, 232, 240, 0.9);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 250, 255, 0.92));
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
}

.live-hub-session-card.live {
  border-color: rgba(26, 115, 232, 0.28);
  box-shadow: 0 14px 32px rgba(26, 115, 232, 0.14);
}

.live-hub-session-card.ready {
  border-color: rgba(253, 186, 116, 0.62);
  box-shadow: 0 14px 30px rgba(245, 158, 11, 0.14);
}

.live-hub-session-card.ended {
  opacity: 0.78;
}

.live-hub-session-card.is-selected {
  outline: 2px solid rgba(26, 115, 232, 0.2);
}

.live-hub-session-head,
.live-hub-session-meta-row,
.live-hub-session-actions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.live-hub-session-type,
.live-hub-session-status {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 0.22rem 0.62rem;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.live-hub-session-type {
  background: rgba(255, 109, 0, 0.12);
  color: #c45300;
}

.live-hub-session-status.upcoming {
  background: rgba(15, 23, 42, 0.06);
  color: #51627a;
}

.live-hub-session-status.live {
  background: rgba(16, 185, 129, 0.12);
  color: #047857;
}

.live-hub-session-status.ready {
  background: rgba(245, 158, 11, 0.14);
  color: #b45309;
}

.live-hub-session-status.ended {
  background: rgba(148, 163, 184, 0.12);
  color: #64748b;
}

.live-hub-session-card h4 {
  margin: 0;
  color: #0f172a;
  font-size: 1rem;
}

.live-hub-session-card p {
  margin: 0;
  color: #51627a;
  line-height: 1.45;
}

.live-hub-session-meta-row,
.live-hub-session-timer {
  color: #51627a;
  font-size: 0.82rem;
}

.live-hub-session-operator-row {
  display: grid;
  gap: 4px;
  border-radius: 14px;
  padding: 10px 12px;
  background: rgba(26, 115, 232, 0.06);
  border: 1px solid rgba(26, 115, 232, 0.12);
}

.live-hub-session-operator {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  background: rgba(26, 115, 232, 0.12);
  color: #1a73e8;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.live-hub-session-operator-note {
  color: #51627a;
  font-size: 0.8rem;
  line-height: 1.4;
}

.live-hub-meta-pill.accent {
  background: rgba(255, 109, 0, 0.12);
  border-color: rgba(255, 109, 0, 0.18);
  color: #c45300;
}

.live-hub-session-meta-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.live-hub-session-timer {
  font-weight: 700;
  color: #0f172a;
}

.live-hub-session-complete-note {
  border-radius: 12px;
  padding: 8px 10px;
  border: 1px solid rgba(100, 116, 139, 0.28);
  background: rgba(241, 245, 249, 0.72);
  color: #334155;
  font-size: 0.78rem;
  font-weight: 700;
}

.live-hub-empty {
  padding: 18px;
  border-radius: 18px;
  border: 1px dashed rgba(148, 163, 184, 0.35);
  color: #51627a;
  background: rgba(248, 250, 252, 0.82);
}

.live-hub-stage {
  margin-bottom: 18px;
}

.live-hub-modal {
  display: none;
  position: fixed;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 200;
  background: rgba(12,16,24,0.36);
  display: grid;
  place-items: center;
}
.live-hub-modal-shell {
  width: min(760px, calc(100% - 32px));
  background: #fff;
  padding: 20px;
  border-radius: 18px;
  box-shadow: 0 28px 80px rgba(12,16,24,0.28);
}
.live-hub-modal-shell input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid rgba(148,163,184,0.18);
  margin-top: 8px;
}
.live-hub-host-screen {
  display: grid;
  gap: 16px;
  background:
    radial-gradient(circle at 88% 12%, rgba(59, 130, 246, 0.1), transparent 32%),
    radial-gradient(circle at 12% 0%, rgba(15, 118, 110, 0.12), transparent 30%),
    #ffffff;
}
.live-hub-host-hero h4 {
  margin: 4px 0 8px;
  font-size: 1.4rem;
}
.live-hub-host-details {
  display: grid;
  gap: 14px;
}
.live-hub-host-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.live-hub-host-meta span {
  display: grid;
  gap: 4px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  background: linear-gradient(180deg, #f8fbff, #ffffff);
}
.live-hub-host-meta small {
  font-size: 0.9rem;
  color: #334155;
  word-break: break-word;
}
.live-hub-host-field {
  display: grid;
  gap: 6px;
  font-weight: 700;
  color: #0f172a;
}
.live-hub-host-field span {
  font-size: 0.92rem;
}
.live-hub-host-field input {
  margin-top: 0;
  min-height: 48px;
  font-size: 1rem;
}
.live-hub-host-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}
.live-hub-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
}

.live-hub-toast-host {
  position: fixed;
  top: 88px;
  right: 18px;
  z-index: 260;
  display: grid;
  gap: 10px;
  width: min(360px, calc(100vw - 28px));
  pointer-events: none;
}

.live-hub-toast {
  pointer-events: auto;
  border-radius: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 18px 34px rgba(15, 23, 42, 0.16);
  font-weight: 700;
  color: #0f172a;
  backdrop-filter: blur(12px);
  animation: toastEnter 180ms ease-out;
}

.live-hub-toast.info { border-left: 4px solid #2f6fed; }
.live-hub-toast.success { border-left: 4px solid #0f766e; }
.live-hub-toast.warning { border-left: 4px solid #d97706; }
.live-hub-toast.error { border-left: 4px solid #dc2626; }
.live-hub-toast.is-hiding { opacity: 0; transform: translateY(-4px); transition: opacity 180ms ease, transform 180ms ease; }

.live-hub-waiting-room {
  display: grid;
  gap: 14px;
  margin: 4px 14px 0;
  padding: 16px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(240, 247, 255, 0.96));
  border: 1px solid rgba(148, 163, 184, 0.18);
}

.live-hub-waiting-hero h3 {
  margin: 6px 0 4px;
  font-size: 1.2rem;
}

.live-hub-waiting-hero p,
.live-hub-waiting-note {
  margin: 0;
  color: #52657c;
}

.live-hub-live-dot {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #0f766e;
}

.live-hub-live-dot::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #14b8a6;
  box-shadow: 0 0 0 6px rgba(20, 184, 166, 0.16);
}

.live-hub-waiting-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.live-hub-skeleton-card {
  min-height: 120px;
  border-radius: 14px;
  background: linear-gradient(90deg, rgba(226, 232, 240, 0.92), rgba(248, 250, 252, 0.96), rgba(226, 232, 240, 0.92));
  background-size: 200% 100%;
}

.live-hub-waiting-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.shimmer {
  animation: shimmer 1.35s linear infinite;
}

.live-hub-stage-shell {
  display: grid;
  gap: 16px;
  border-radius: 24px;
  padding: 18px;
  border: 1px solid rgba(226, 232, 240, 0.88);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(246, 249, 255, 0.94));
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.12);
}

.live-hub-stage-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.68fr) minmax(300px, 0.72fr);
  gap: 16px;
  align-items: stretch;
}

.live-hub-session-card.pulse-highlight {
  outline: 2px solid rgba(15, 118, 110, 0.45);
  box-shadow: 0 0 0 6px rgba(15, 118, 110, 0.12);
}

.live-hub-video-card,
.live-hub-chat-card {
  min-height: 620px;
  border-radius: 20px;
  overflow: hidden;
}

.live-hub-video-card {
  background: linear-gradient(180deg, #09111f 0%, #0f1d33 100%);
  border: 1px solid rgba(15, 23, 42, 0.2);
  display: grid;
  grid-template-rows: auto 1fr;
}

.live-hub-stage-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding: 14px 14px 0;
}

.live-hub-meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 999px;
  padding: 0.24rem 0.62rem;
  font-size: 0.72rem;
  font-weight: 700;
  color: #e2e8f0;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.live-hub-video-mount {
  min-height: 560px;
  display: grid;
}

.live-hub-video-mount > * {
  min-height: 560px;
}

.live-hub-chat-card {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(148, 163, 184, 0.18);
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.live-hub-chat-head,
.live-hub-chat-form {
  position: sticky;
  z-index: 2;
  background: inherit;
}

.live-hub-chat-head {
  top: 0;
}

.live-hub-chat-form {
  bottom: 0;
}

.live-hub-chat-list {
  min-height: 0;
}

.live-hub-status-chip.live {
  background: rgba(16, 185, 129, 0.16);
  color: #0f766e;
}

.live-hub-status-chip.ready {
  background: rgba(245, 158, 11, 0.16);
  color: #b45309;
}

@keyframes toastEnter {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmer {
  from { background-position: 0% 0; }
  to { background-position: 200% 0; }
}

.live-hub-agora-stage {
  position: relative;
  width: 100%;
  min-height: 560px;
  display: grid;
  grid-template-rows: 1fr;
  gap: 10px;
}

.live-hub-agora-local {
  position: absolute;
  left: 16px;
  bottom: 16px;
  width: 180px;
  height: 120px;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.18);
  background: rgba(15, 23, 42, 0.85);
}

.live-hub-agora-remote {
  width: 100%;
  height: 100%;
}

.live-hub-agora-banner {
  position: absolute;
  left: 50%;
  top: 16px;
  transform: translateX(-50%);
  padding: 0.42rem 0.8rem;
  border-radius: 999px;
  color: #e2e8f0;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(12px);
  font-size: 0.75rem;
  font-weight: 700;
  z-index: 2;
}

.live-hub-video-fallback {
  display: grid;
  place-items: center;
  color: #e2e8f0;
  padding: 20px;
  text-align: center;
}

.live-hub-video-fallback p {
  margin: 8px 0 0;
  color: rgba(226, 232, 240, 0.78);
}

.live-hub-iframe {
  width: 100%;
  height: 100%;
  min-height: 560px;
  border: 0;
}

.live-hub-chat-card {
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 16px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(226, 232, 240, 0.88);
  box-shadow: 0 18px 34px rgba(15, 23, 42, 0.08);
}

.live-hub-chat-head h3 {
  margin: 0;
}

.live-hub-chat-head p {
  margin: 6px 0 0;
  color: #64748b;
  font-size: 0.85rem;
}

.live-hub-chat-list {
  display: grid;
  gap: 10px;
  align-content: start;
  overflow: auto;
  padding: 12px 2px 12px 0;
}

.live-hub-message {
  display: grid;
  gap: 6px;
  border-radius: 16px;
  padding: 12px 14px;
  border: 1px solid rgba(226, 232, 240, 0.95);
  background: rgba(248, 250, 252, 0.92);
}

.live-hub-message.student {
  background: linear-gradient(180deg, rgba(239, 246, 255, 0.95), rgba(255, 255, 255, 0.96));
}

.live-hub-message.system {
  background: linear-gradient(180deg, rgba(255, 247, 237, 0.95), rgba(255, 255, 255, 0.96));
}

.live-hub-message-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 0.78rem;
  color: #64748b;
}

.live-hub-message p {
  margin: 0;
  color: #0f172a;
  line-height: 1.45;
}

.live-hub-chat-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px solid rgba(226, 232, 240, 0.9);
}

.live-hub-chat-form input {
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.24);
  background: rgba(248, 250, 252, 0.96);
  padding: 0.9rem 0.95rem;
  font-size: 0.95rem;
}

.live-hub-chat-form input:focus {
  outline: none;
  border-color: rgba(26, 115, 232, 0.38);
  box-shadow: 0 0 0 3px rgba(26, 115, 232, 0.12);
}

.content.live-session-active > :not(.live-hub-stage) {
  display: none !important;
}

.content.live-session-active {
  padding-top: 18px;
}

.content.live-session-active .live-hub-stage {
  display: block;
}

@media (min-width: 1200px) {
  body.live-hub-panel-open .content {
    padding-right: 500px;
  }
}

.sidebar-profile {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.85));
  padding: 13px 12px;
  backdrop-filter: blur(8px);
  transition: all 200ms var(--ease-smooth);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.sidebar-profile:hover {
  border-color: rgba(15, 123, 108, 0.2);
  box-shadow: 0 8px 20px rgba(15, 123, 108, 0.12);
  transform: translateY(-2px);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(255, 255, 255, 0.9));
}

.sidebar-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0f7b6c, #2f6fed);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(15, 123, 108, 0.25);
  transition: transform 160ms ease;
}

.sidebar-profile:hover .sidebar-avatar {
  transform: scale(1.1);
}

.sidebar-user-meta {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.sidebar-user-meta strong {
  font-size: 0.88rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 600;
  color: #111827;
}

.sidebar-user-meta span {
  font-size: 0.78rem;
  color: #9ca3af;
  font-weight: 500;
}

.app-shell.sidebar-collapsed .sidebar {
  padding-left: 6px;
  padding-right: 6px;
}

.app-shell.sidebar-collapsed .logo span,
.app-shell.sidebar-collapsed .logo::after,
.app-shell.sidebar-collapsed .nav-group-title,
.app-shell.sidebar-collapsed .nav-link .nav-label,
.app-shell.sidebar-collapsed .sidebar-user-meta {
  display: none;
}

.app-shell.sidebar-collapsed .logo {
  justify-content: center;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  margin-bottom: 12px;
}

.app-shell.sidebar-collapsed .sidebar-head {
  justify-content: center;
  padding: 12px 4px;
  border-bottom: none;
  margin-bottom: 0;
  gap: 8px;
}

.app-shell.sidebar-collapsed .logo i {
  margin-bottom: 0;
  font-size: 1.4rem;
}

.app-shell.sidebar-collapsed .nav-list {
  gap: 12px;
}

.app-shell.sidebar-collapsed .nav-group {
  gap: 8px;
  padding-bottom: 12px;
}

.app-shell.sidebar-collapsed .nav-link {
  justify-content: center;
  padding: 12px 0;
  border-left-color: transparent;
  gap: 0;
}

.app-shell.sidebar-collapsed .nav-link.active {
  border-left-color: var(--primary);
  box-shadow: none;
}

.app-shell.sidebar-collapsed .nav-link:hover::after {
  content: attr(data-label);
  position: absolute;
  left: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background: #111827;
  color: #fff;
  border-radius: 8px;
  font-size: 0.76rem;
  padding: 6px 10px;
  white-space: nowrap;
  z-index: 55;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  animation: slideIn 200ms ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-50%) translateX(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
  }
}

.app-shell.sidebar-collapsed .nav-badge {
  position: absolute;
  right: 0;
  top: 2px;
}

.app-shell.sidebar-collapsed .sidebar-profile {
  justify-content: center;
  padding: 12px 4px;
  gap: 0;
}

.app-shell.sidebar-collapsed .sidebar-avatar {
  margin: 0;
}

/* ── Manual dark mode (JS data-theme-mode="dark", persisted via localStorage) ── */
html[data-theme-mode="dark"] {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-2: #263143;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --ring: rgba(16, 185, 129, 0.25);
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}

html[data-theme-mode="dark"] body {
  background:
    radial-gradient(circle at 20% 0%, rgba(16, 185, 129, 0.06) 0%, transparent 30%),
    radial-gradient(circle at 80% 10%, rgba(59, 130, 246, 0.05) 0%, transparent 35%),
    #0f172a;
  color: #f1f5f9;
}

html[data-theme-mode="dark"] .sidebar {
  background: linear-gradient(170deg, #0f172a 0%, #111827 100%);
  border-right-color: rgba(255, 255, 255, 0.08);
}

html[data-theme-mode="dark"] .sidebar-head { border-bottom-color: rgba(255, 255, 255, 0.08); }

html[data-theme-mode="dark"] .logo span {
  background: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

html[data-theme-mode="dark"] .logo::after { color: #6b7280; }

html[data-theme-mode="dark"] .sidebar-toggle {
  background: rgba(31, 41, 55, 0.95);
  border-color: rgba(255, 255, 255, 0.14);
  color: #9ca3af;
}

html[data-theme-mode="dark"] .sidebar-toggle:hover {
  background: rgba(55, 65, 81, 0.95);
  border-color: #10b981;
  color: #10b981;
  box-shadow: 0 6px 16px rgba(16, 185, 129, 0.2);
}

html[data-theme-mode="dark"] .nav-group { border-bottom-color: rgba(255, 255, 255, 0.08); }
html[data-theme-mode="dark"] .nav-group-title { color: #6b7280; }
html[data-theme-mode="dark"] .nav-link { color: #d1d5db; }

html[data-theme-mode="dark"] .nav-link:hover {
  background: linear-gradient(90deg, rgba(16, 185, 129, 0.15), rgba(16, 185, 129, 0.08));
  color: #f3f4f6;
  border-left-color: #10b981;
}

html[data-theme-mode="dark"] .nav-link:hover i { color: #10b981 !important; }

html[data-theme-mode="dark"] .nav-link.active {
  background: linear-gradient(90deg, rgba(16, 185, 129, 0.2), rgba(16, 185, 129, 0.1));
  color: #f3f4f6;
  border-left-color: #10b981;
  box-shadow: inset -2px 0 8px rgba(16, 185, 129, 0.15);
}

html[data-theme-mode="dark"] .nav-link.active i { color: #10b981 !important; }

html[data-theme-mode="dark"] .sidebar-profile {
  background: linear-gradient(135deg, rgba(31, 41, 55, 0.95), rgba(17, 24, 39, 0.9));
  border-color: rgba(255, 255, 255, 0.12);
}

html[data-theme-mode="dark"] .sidebar-profile:hover {
  border-color: rgba(16, 185, 129, 0.3);
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.15);
}

html[data-theme-mode="dark"] .sidebar-avatar {
  background: linear-gradient(135deg, #10b981, #3b82f6);
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

html[data-theme-mode="dark"] .sidebar-user-meta strong { color: #f3f4f6; }
html[data-theme-mode="dark"] .sidebar-user-meta span { color: #9ca3af; }

html[data-theme-mode="dark"] .topbar {
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.9));
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

html[data-theme-mode="dark"] #pageTitle { color: #f3f4f6; }

html[data-theme-mode="dark"] .icon-chip {
  background: rgba(31, 41, 55, 0.95);
  border-color: rgba(255, 255, 255, 0.14);
  color: #d1d5db;
}

html[data-theme-mode="dark"] .icon-chip:hover {
  background: rgba(55, 65, 81, 0.95);
  border-color: #10b981;
  color: #f3f4f6;
  box-shadow: 0 8px 20px rgba(16, 185, 129, 0.2);
}

html[data-theme-mode="dark"] .icon-chip i { color: #10b981; }

html[data-theme-mode="dark"] th,
html[data-theme-mode="dark"] td {
  border-bottom-color: rgba(255, 255, 255, 0.08);
  color: #e2e8f0;
}

html[data-theme-mode="dark"] input,
html[data-theme-mode="dark"] select,
html[data-theme-mode="dark"] textarea {
  background: #1e293b;
  border-color: rgba(255, 255, 255, 0.12);
  color: #f1f5f9;
}

html[data-theme-mode="dark"] .mobile-nav {
  background: #111827;
  border-top-color: rgba(255, 255, 255, 0.08);
}

html[data-theme-mode="dark"] .mobile-nav a { color: #94a3b8; }
html[data-theme-mode="dark"] .mobile-nav a.active { background: rgba(16, 185, 129, 0.15); color: #f3f4f6; }

/* ── Dark mode: body & page background ── */
html[data-theme-mode="dark"] body {
  background:
    radial-gradient(circle at 20% 0%, rgba(16, 185, 129, 0.05) 0%, transparent 30%),
    radial-gradient(circle at 80% 10%, rgba(59, 130, 246, 0.04) 0%, transparent 35%),
    #0f172a;
  color: #f1f5f9;
}

/* ── Dark mode: main content area ── */
html[data-theme-mode="dark"] .content {
  background: transparent;
}

/* ── Dark mode: cards and surfaces ── */
html[data-theme-mode="dark"] .card {
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  color: #f1f5f9;
}

html[data-theme-mode="dark"] .card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

html[data-theme-mode="dark"] .card h3,
html[data-theme-mode="dark"] .card h4,
html[data-theme-mode="dark"] .card p {
  color: #f1f5f9;
}

/* ── Dark mode: KPI and stats boxes ── */
html[data-theme-mode="dark"] .kpi {
  background: #1e293b;
  border-color: rgba(255, 255, 255, 0.06);
  color: #f1f5f9;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

html[data-theme-mode="dark"] .kpi:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  border-color: rgba(255, 255, 255, 0.08);
}
}

/* ── Dark mode: progress bar ── */
html[data-theme-mode="dark"] .progress {
  background: #263143;
}

/* ── Dark mode: badges and pills ── */
html[data-theme-mode="dark"] .badge {
  background: #263143;
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

html[data-theme-mode="dark"] .pill {
  background: #263143;
  color: #cbd5e1;
  border-color: rgba(255, 255, 255, 0.1);
}

/* ── Dark mode: buttons ── */
html[data-theme-mode="dark"] .btn.secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #f1f5f9;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

html[data-theme-mode="dark"] .btn.secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

html[data-theme-mode="dark"] .btn.primary {
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
}

html[data-theme-mode="dark"] .btn.primary:hover {
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.3);
}

/* ── Dark mode: tables ── */
html[data-theme-mode="dark"] table {
  color: #e2e8f0;
}

html[data-theme-mode="dark"] th {
  color: #94a3b8;
  border-bottom-color: rgba(255, 255, 255, 0.1);
  background: #1e293b;
}

html[data-theme-mode="dark"] td {
  border-bottom-color: rgba(255, 255, 255, 0.06);
  color: #e2e8f0;
}

html[data-theme-mode="dark"] tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

/* ── Dark mode: inputs, selects, textareas ── */
html[data-theme-mode="dark"] input,
html[data-theme-mode="dark"] select,
html[data-theme-mode="dark"] textarea {
  background: #1e293b;
  border-color: rgba(255, 255, 255, 0.12);
  color: #f1f5f9;
}

html[data-theme-mode="dark"] input::placeholder,
html[data-theme-mode="dark"] textarea::placeholder {
  color: #64748b;
}

html[data-theme-mode="dark"] input:focus,
html[data-theme-mode="dark"] select:focus,
html[data-theme-mode="dark"] textarea:focus {
  border-color: #10b981;
  outline-color: rgba(16, 185, 129, 0.25);
}

/* ── Dark mode: resource & misc cards ── */
html[data-theme-mode="dark"] .resource-card {
  background: #1e293b;
  border-color: rgba(255, 255, 255, 0.08);
  color: #f1f5f9;
}

html[data-theme-mode="dark"] .icon-tile {
  background: #1e293b;
  border-color: rgba(255, 255, 255, 0.08);
  color: #f1f5f9;
}

html[data-theme-mode="dark"] .empty-state {
  background: #1e293b;
  border-color: rgba(255, 255, 255, 0.1);
  color: #94a3b8;
}

/* ── Dark mode: roadmap steps ── */
html[data-theme-mode="dark"] .roadmap-step {
  background: #1e293b;
  border-color: rgba(255, 255, 255, 0.1);
  color: #f1f5f9;
}

html[data-theme-mode="dark"] .roadmap-step.next {
  background: rgba(255, 122, 24, 0.1);
  border-color: var(--accent);
}

/* ── Dark mode: notes cards ── */
html[data-theme-mode="dark"] .notes-card.easy { background: rgba(31, 127, 85, 0.2); }
html[data-theme-mode="dark"] .notes-card.medium { background: rgba(180, 83, 9, 0.2); }
html[data-theme-mode="dark"] .notes-card.hard { background: rgba(198, 52, 45, 0.2); }

/* ── Dark mode: certificate canvas ── */
html[data-theme-mode="dark"] .certificate-canvas {
  background: linear-gradient(160deg, #1e293b, #263143);
  border-color: #10b981;
  color: #f1f5f9;
}

/* ── Dark mode: muted text ── */
html[data-theme-mode="dark"] .muted { color: #94a3b8; }

/* ── Dark mode: section headers / headings ── */
html[data-theme-mode="dark"] h1, 
html[data-theme-mode="dark"] h2, 
html[data-theme-mode="dark"] h3, 
html[data-theme-mode="dark"] h4 {
  color: #f1f5f9;
}

html[data-theme-mode="dark"] p {
  color: #cbd5e1;
}

/* ── Dark mode: auth / dash page backgrounds ── */
html[data-theme-mode="dark"] .auth-page,
html[data-theme-mode="dark"] .dash-page {
  background: #0f172a;
}

html[data-theme-mode="dark"] .auth-panel {
  background: rgba(30, 41, 59, 0.95);
  border-color: rgba(255, 255, 255, 0.1);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

html[data-theme-mode="dark"] .auth-tabs {
  background: #263143;
}

html[data-theme-mode="dark"] .auth-tab.active {
  background: #1e293b;
  color: #f1f5f9;
}

html[data-theme-mode="dark"] .auth-tab {
  color: #94a3b8;
}

html[data-theme-mode="dark"] .auth-brand h1,
html[data-theme-mode="dark"] .auth-brand p {
  color: #f1f5f9;
}

/* ── Dark mode: table-wrap ── */
html[data-theme-mode="dark"] .table-wrap {
  background: transparent;
}

/* ── Dark mode: section-card (Settings page) ── */
html[data-theme-mode="dark"] .section-card {
  background: #1e293b !important;
  border-color: rgba(255, 255, 255, 0.08) !important;
}

html[data-theme-mode="dark"] .switch-row {
  background: #263143 !important;
  border-color: rgba(255, 255, 255, 0.08) !important;
  color: #f1f5f9 !important;
}

html[data-theme-mode="dark"] .switch-row .meta strong,
html[data-theme-mode="dark"] .switch-row .meta span {
  color: #cbd5e1 !important;
}

html[data-theme-mode="dark"] .sessions-list {
  background: #263143 !important;
  border-color: rgba(255, 255, 255, 0.08) !important;
  color: #cbd5e1 !important;
}

/* ── Dark mode: label text ── */
html[data-theme-mode="dark"] label,
html[data-theme-mode="dark"] .field label {
  color: #94a3b8;
}

/* ── Dark mode: generic link colors ── */
html[data-theme-mode="dark"] a:not(.nav-link):not(.icon-chip):not(.btn) {
  color: #10b981;
}

.main-area {
  display: flex;
  flex-direction: column;
}

.topbar {
  padding: 18px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(12px);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.88));
  height: 72px;
  gap: 24px;
  transition: all 200ms var(--ease-smooth);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

#pageTitle {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar .quick-icons {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-left: auto;
}

.icon-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 10px;
  border: 1.2px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.92);
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: #374151;
  cursor: pointer;
  transition: all 180ms var(--ease-smooth);
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.icon-chip i {
  color: var(--primary);
  font-size: 1.05rem;
  transition: transform 180ms var(--ease-smooth), filter 180ms ease;
}

.icon-chip:hover {
  background: #fff;
  border-color: var(--primary);
  color: var(--text);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(15, 123, 108, 0.15);
}

.icon-chip:hover i {
  transform: scale(1.1);
  color: var(--primary);
  filter: drop-shadow(0 0 6px rgba(15, 123, 108, 0.3));
}

.icon-chip:active {
  transform: translateY(0px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.content {
  padding: 24px;
  display: grid;
  gap: 18px;
}

.hero {
  padding: 32px 28px;
  background: linear-gradient(125deg, #073b4c 0%, #0f7b6c 42%, #ff7a18 100%);
  color: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  animation: riseIn 360ms ease;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.15), transparent);
  border-radius: 50%;
  pointer-events: none;
}

.hero p {
  margin-top: 12px;
  max-width: 70ch;
  line-height: 1.5;
  opacity: 0.95;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid.cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 24px;
  animation: riseIn 420ms ease;
  position: relative;
  overflow: hidden;
  transition: all 200ms var(--ease-smooth);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0));
  opacity: 0.6;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0, 0, 0, 0.08);
}

.card h3 {
  margin-bottom: 12px;
}

.card h4 {
  margin-bottom: 10px;
}

.muted {
  color: var(--muted);
}

.badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 12px;
  padding: 6px 12px;
  background: var(--surface-2);
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all 150ms ease;
}

.kpi {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  margin-top: 10px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.3));
  transition: all 200ms var(--ease-smooth);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.kpi:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border-color: rgba(0, 0, 0, 0.08);
}

.kpi i {
  font-size: 1.1rem;
}

.progress {
  height: 12px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.06);
  overflow: hidden;
  transition: all 200ms ease;
}

.progress > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #1f7f55, #ff7a18);
  border-radius: 999px;
  box-shadow: 0 0 12px rgba(31, 127, 85, 0.3);
  animation: progressFill 1.2s ease 1;
}

@keyframes progressFill {
  from {
    width: 0 !important;
  }
}

.btn {
  border: 0;
  border-radius: 10px;
  padding: 12px 18px;
  font-weight: 600;
  cursor: pointer;
  transition: all 180ms var(--ease-smooth);
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.1);
  opacity: 0;
  transition: opacity 150ms ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.btn:active {
  transform: translateY(0px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn i {
  font-size: 1.05rem;
  transition: transform 150ms var(--ease-smooth);
}

.btn:hover i {
  transform: scale(1.1);
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary), #1a8f7e);
  color: #fff;
  box-shadow: 0 4px 12px rgba(15, 123, 108, 0.25);
}

.btn.primary:hover {
  box-shadow: 0 8px 24px rgba(15, 123, 108, 0.35);
}

.btn.secondary {
  background: rgba(0, 0, 0, 0.04);
  color: var(--text);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.btn.secondary:hover {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.15);
}

.btn.warn {
  background: linear-gradient(135deg, var(--accent), #f98722);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 122, 24, 0.25);
}

.btn.warn:hover {
  box-shadow: 0 8px 24px rgba(255, 122, 24, 0.35);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
}

th,
td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

th {
  font-weight: 600;
  color: var(--text);
  background: rgba(0, 0, 0, 0.02);
  transition: all 150ms ease;
}

tr:hover td {
  background: rgba(15, 123, 108, 0.03);
  transition: all 150ms ease;
}

input,
select,
textarea {
  width: 100%;
  border: 1.5px solid rgba(0, 0, 0, 0.12);
  background: #fff;
  border-radius: 10px;
  padding: 12px 14px;
  font: inherit;
  transition: all 180ms var(--ease-smooth);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 123, 108, 0.1), inset 0 0 0 1px rgba(15, 123, 108, 0.08);
  transform: translateY(-1px);
}

.form-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.roadmap {
  display: grid;
  gap: 12px;
}

.roadmap-step {
  border: 1.5px dashed rgba(0, 0, 0, 0.12);
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  cursor: move;
  transition: all 200ms var(--ease-smooth);
  box-shadow: var(--shadow-xs);
}

.roadmap-step:hover {
  border-color: rgba(0, 0, 0, 0.16);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.roadmap-step.next {
  border-style: solid;
  border-color: var(--accent);
  background: linear-gradient(135deg, #fff5ec, #fffaf5);
  box-shadow: 0 4px 12px rgba(255, 122, 24, 0.1);
}

.notes-card.easy {
  background: var(--easy);
}

.notes-card.medium {
  background: var(--medium);
}

.notes-card.hard {
  background: var(--hard);
}

.certificate-canvas {
  width: 100%;
  min-height: 360px;
  border-radius: 14px;
  border: 2px solid #1f7f55;
  background: linear-gradient(160deg, #fff, #f8fff9);
  padding: 24px;
  box-shadow: 0 8px 32px rgba(31, 127, 85, 0.15);
  transition: all 200ms var(--ease-smooth);
  position: relative;
  overflow: hidden;
}

.certificate-canvas:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(31, 127, 85, 0.2);
}

.icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
}

.icon-tile {
  background: #fff;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  text-align: center;
  padding: 16px 12px;
  transition: all 200ms var(--ease-smooth);
  box-shadow: var(--shadow-xs);
}

.icon-tile:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 0, 0, 0.08);
}

.icon-tile i {
  font-size: 1.4rem;
  margin-bottom: 6px;
}

.resource-list {
  display: grid;
  gap: 12px;
}

.resource-card {
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  transition: all 200ms var(--ease-smooth);
  box-shadow: var(--shadow-xs);
}

.resource-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 0, 0, 0.08);
}

.resource-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 8px 0;
}

.pill {
  font-size: 0.78rem;
  background: rgba(0, 0, 0, 0.04);
  border-radius: 20px;
  padding: 6px 12px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  transition: all 150ms ease;
  display: inline-block;
}

.pill:hover {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.12);
}

.empty-state {
  text-align: center;
  border: 1.5px dashed rgba(0, 0, 0, 0.12);
  border-radius: 12px;
  padding: 32px 24px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.2));
  transition: all 200ms var(--ease-smooth);
}

.empty-state:hover {
  border-color: rgba(0, 0, 0, 0.16);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.6), rgba(255, 255, 255, 0.3));
}

.mobile-nav {
  display: none;
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.6;
  }
  50% {
    opacity: 1;
  }
}

@keyframes livePulse {
  0% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(26, 115, 232, 0.5);
  }
  70% {
    transform: scale(1);
    box-shadow: 0 0 0 12px rgba(26, 115, 232, 0);
  }
  100% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(26, 115, 232, 0);
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Skeleton Loading States */
.skeleton {
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.08) 25%, rgba(0, 0, 0, 0.12) 50%, rgba(0, 0, 0, 0.08) 75%);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
  border-radius: 8px;
}

.skeleton-text {
  height: 14px;
  margin-bottom: 8px;
}

.skeleton-card {
  height: 200px;
  border-radius: 12px;
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: none;
  }

  .mobile-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    padding: 6px;
    background: #fff;
    border-top: 1px solid rgba(0, 0, 0, 0.12);
    z-index: 40;
  }

  .mobile-nav a {
    padding: 8px 0;
    text-align: center;
    border-radius: 8px;
    font-size: 0.78rem;
    color: var(--muted);
  }

  .mobile-nav a.active {
    background: #ece6da;
    color: var(--text);
  }

  .content {
    padding-bottom: 88px;
  }

  .grid.cols-2,
  .grid.cols-3,
  .form-grid {
    grid-template-columns: 1fr;
  }
}

.hidden {
  display: none !important;
}

.auth-page,
.dash-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% 8%, rgba(248, 199, 66, 0.22) 0%, rgba(248, 199, 66, 0) 28%),
    radial-gradient(circle at 88% 12%, rgba(36, 131, 255, 0.2) 0%, rgba(36, 131, 255, 0) 30%),
    linear-gradient(160deg, #f9f7f1 0%, #e8f3ff 50%, #eef7ef 100%);
}

.auth-layout {
  width: min(1150px, 94vw);
  margin: 0 auto;
  min-height: 100vh;
  display: grid;
  gap: 20px;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
}

.auth-brand {
  padding: 30px;
}

.auth-kicker {
  margin: 0 0 8px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #0c6f63;
  font-size: 0.82rem;
}

.auth-brand h1 {
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  max-width: 18ch;
  line-height: 1.1;
}

.auth-highlights {
  margin-top: 20px;
  display: grid;
  gap: 10px;
}

.auth-highlights div {
  display: flex;
  gap: 10px;
  align-items: center;
}

.auth-panel {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(7, 43, 84, 0.12);
  padding: 24px;
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #ecf1f7;
  border-radius: 12px;
  padding: 4px;
  margin-bottom: 18px;
}

.auth-tab {
  border: 0;
  background: transparent;
  border-radius: 10px;
  font: inherit;
  font-weight: 600;
  padding: 10px;
  cursor: pointer;
}

.auth-tab.active {
  background: #ffffff;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.09);
}

.stack-form {
  display: grid;
  gap: 10px;
}

.auth-divider {
  margin: 16px 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

.form-error {
  min-height: 20px;
  margin: 10px 0 0;
  color: #b91c1c;
  font-size: 0.9rem;
}

.dash-wrap {
  width: min(1160px, 94vw);
  margin: 0 auto;
  padding: 24px 0 40px;
}

.dash-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.dash-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.stat-card {
  background: linear-gradient(140deg, #ffffff, #f1f8ff);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  padding: 14px;
}

.stat-card span {
  color: var(--muted);
  font-size: 0.85rem;
}

.stat-card strong {
  display: block;
  margin-top: 6px;
  font-size: 1.6rem;
  font-family: 'Space Grotesk', sans-serif;
}

.premium-grid {
  margin-top: 18px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.premium-card {
  display: block;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.08);
  transition: transform 150ms ease;
}

.premium-card:hover {
  transform: translateY(-3px);
}

.premium-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(130deg, #0f7b6c, #1f8fff);
  color: #fff;
}

.premium-card h3 {
  margin-top: 12px;
}

.premium-card p {
  margin: 8px 0 0;
  color: var(--muted);
}

@media (max-width: 980px) {
  .auth-layout {
    grid-template-columns: 1fr;
    padding: 22px 0;
  }

  .auth-brand {
    padding: 8px;
  }

  .dash-stats,
  .premium-grid {
    grid-template-columns: 1fr;
  }

  .dash-top {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* =========================================================
   Referral Program Dashboard
   ========================================================= */

/* Hero override for referrals page */
.ref-hero {
  background: linear-gradient(130deg, #3b1f0a 0%, #7b3f00 45%, #ff7a18 100%);
}

.ref-hero-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.ref-code-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(6px);
  border-radius: 14px;
  padding: 12px 18px;
  color: #fff;
  flex-shrink: 0;
}

.ref-code-chip .ref-code-label {
  font-size: 0.8rem;
  opacity: 0.8;
}

.ref-code-chip strong {
  font-size: 1.15rem;
  font-family: 'Space Grotesk', sans-serif;
  letter-spacing: 0.06em;
}

/* Stats Strip */
.ref-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.ref-stat-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  animation: riseIn 400ms ease;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.ref-stat-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 48px rgba(0,0,0,0.12);
}

.ref-stat-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.ref-stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
}

.ref-stat-label {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 4px;
}

/* Progress Section */
.ref-progress-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  flex-wrap: wrap;
}

.ref-milestone-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  background: #f0eeff;
  color: #5553a9;
  white-space: nowrap;
}

.ref-milestone-row {
  display: flex;
  gap: 0;
  margin-top: 14px;
  position: relative;
  align-items: center;
}

.ref-milestone-row::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: #ece6da;
  z-index: 0;
  transform: translateY(-50%);
}

.ref-milestone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 1;
  z-index: 1;
}

.ref-milestone i {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #ece6da;
  color: #bbb;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: background 200ms, color 200ms, box-shadow 200ms;
}

.ref-milestone span {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
}

.ref-milestone.ref-ms-done i {
  background: linear-gradient(135deg, #1f7f55, #0f7b6c);
  color: #fff;
  box-shadow: 0 4px 12px rgba(31,127,85,0.35);
}

.ref-milestone.ref-ms-done span {
  color: #1f7f55;
}

/* Share Buttons */
.ref-actions {
  gap: 10px;
  flex-wrap: wrap;
}

.ref-btn-whatsapp {
  background: #25d366;
  color: #fff;
  border-radius: 11px;
  padding: 10px 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  transition: transform 120ms ease, opacity 120ms ease;
  font-size: 0.9rem;
}

.ref-btn-telegram {
  background: #0088cc;
  color: #fff;
  border-radius: 11px;
  padding: 10px 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  transition: transform 120ms ease, opacity 120ms ease;
  font-size: 0.9rem;
}

.ref-btn-linkedin {
  background: #0077b5;
  color: #fff;
  border-radius: 11px;
  padding: 10px 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  transition: transform 120ms ease, opacity 120ms ease;
  font-size: 0.9rem;
}

.ref-btn-email {
  background: #555;
  color: #fff;
  border-radius: 11px;
  padding: 10px 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  transition: transform 120ms ease, opacity 120ms ease;
  font-size: 0.9rem;
}

.ref-btn-whatsapp:hover,
.ref-btn-telegram:hover,
.ref-btn-linkedin:hover,
.ref-btn-email:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

/* Rewards */
.ref-milestones-list {
  display: grid;
  gap: 12px;
}

.ref-reward-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.07);
  background: #fdfcf9;
  transition: background 200ms, border-color 200ms;
}

.ref-reward-row.ref-reward-unlocked {
  background: #f0fff8;
  border-color: rgba(31,127,85,0.3);
}

.ref-reward-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.ref-reward-info {
  flex: 1;
}

.ref-reward-info strong {
  font-size: 0.92rem;
}

.ref-reward-info p {
  margin: 3px 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.ref-reward-status {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: #f3eee2;
  color: var(--muted);
  white-space: nowrap;
}

/* How It Works */
.ref-how-list {
  display: grid;
  gap: 14px;
}

.ref-how-step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.ref-how-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0f7b6c, #1f7f55);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.ref-how-step strong {
  font-size: 0.9rem;
}

.ref-how-step p {
  margin: 3px 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}

/* Referral History */
.ref-history-list {
  display: grid;
  gap: 10px;
}

.ref-history-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.07);
  background: #fdfcf9;
  transition: background 150ms;
}

.ref-history-row:hover {
  background: #f9f5ef;
}

.ref-history-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #ece6da;
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.ref-history-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.ref-status {
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
}

.ref-status-success {
  background: #d4edda;
  color: #157f37;
}

.ref-status-pending {
  background: #fff4e0;
  color: #b45309;
}

.ref-status-rewarded {
  background: #f0eeff;
  color: #5553a9;
}

/* Leaderboard */
.ref-lb-list {
  display: grid;
  gap: 10px;
}

.ref-lb-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(0,0,0,0.07);
  background: #fdfcf9;
  transition: background 150ms;
}

.ref-lb-row:hover {
  background: #f9f5ef;
}

.ref-lb-rank {
  width: 32px;
  text-align: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.ref-lb-name {
  flex: 1;
  font-weight: 600;
  font-size: 0.9rem;
}

.ref-lb-count {
  font-size: 0.88rem;
  color: var(--muted);
}

/* Responsive */
@media (max-width: 980px) {
  .ref-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ref-hero-inner {
    flex-direction: column;
  }

  .ref-code-chip {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 540px) {
  .ref-stats-grid {
    grid-template-columns: 1fr;
  }
}

/* Quiz Library Dashboard */
.quiz-hero {
  background: linear-gradient(120deg, #0a3d62 0%, #2f6fed 45%, #0f7b6c 100%);
}

.quiz-toolbar-card {
  padding: 14px;
}

.quiz-toolbar-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 2fr repeat(3, minmax(0, 1fr));
}

.quiz-toolbar-grid label {
  display: grid;
  gap: 6px;
}

.quiz-search-wrap {
  position: relative;
}

.quiz-search-wrap i {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: 0.86rem;
}

.quiz-search-wrap input {
  padding-left: 34px;
}

.quiz-section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.quiz-section-head h3 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.quiz-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.recommended-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.quiz-card {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  background: linear-gradient(160deg, #ffffff 0%, #f8fbff 100%);
  padding: 14px;
  display: grid;
  gap: 12px;
  box-shadow: 0 10px 24px rgba(7, 43, 84, 0.08);
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.quiz-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 30px rgba(7, 43, 84, 0.14);
}

.quiz-card.recommended {
  border-color: rgba(47, 111, 237, 0.35);
}

.quiz-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.quiz-card-head h4 {
  font-size: 1rem;
  line-height: 1.25;
}

.difficulty-badge {
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
}

.difficulty-badge.easy {
  background: #d8f5df;
  color: #157f37;
}

.difficulty-badge.medium {
  background: #fff4d6;
  color: #b45309;
}

.difficulty-badge.hard {
  background: #ffdfe0;
  color: #c6342d;
}

.quiz-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quiz-meta-row span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--muted);
  background: #f3f7ff;
  border-radius: 999px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  padding: 5px 10px;
}

.quiz-stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.quiz-stats-grid div {
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 10px;
  padding: 8px;
}

.quiz-stats-grid label {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
}

.quiz-stats-grid strong {
  font-size: 1rem;
  font-family: 'Space Grotesk', sans-serif;
}

.quiz-status-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.quiz-status-pill {
  display: inline-flex;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 700;
}

.quiz-status-pill.completed {
  background: #d8f5df;
  color: #157f37;
}

.quiz-status-pill.not-attempted {
  background: #ece6da;
  color: #5f5a53;
}

.quiz-actions {
  margin-top: 2px;
}

.quiz-actions .btn {
  font-size: 0.82rem;
  padding: 8px 10px;
}

.quiz-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
}

.quiz-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.quiz-modal-panel {
  position: relative;
  width: min(680px, 92vw);
  margin: 8vh auto 0;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.26);
  padding: 16px;
  animation: riseIn 180ms ease;
}

.quiz-modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.quiz-modal-content {
  font-size: 0.94rem;
}

.quiz-modal-block ul {
  margin: 8px 0 0;
  padding-left: 18px;
}

.quiz-modal-block li {
  margin-bottom: 6px;
}

@media (max-width: 980px) {
  .quiz-toolbar-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .quiz-toolbar-grid,
  .quiz-stats-grid {
    grid-template-columns: 1fr;
  }

  .quiz-card-head,
  .quiz-status-line {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Study Roadmap Dashboard */
.roadmap-hero {
  background: linear-gradient(120deg, #0a3d62 0%, #1f7f55 48%, #ff7a18 100%);
}

.roadmap-planner-card h3,
.roadmap-progress-card h3,
.roadmap-milestones-card h3 {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.roadmap-input-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.roadmap-input-card {
  display: grid;
  gap: 8px;
  background: linear-gradient(160deg, #ffffff 0%, #f8fbff 100%);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  padding: 12px;
}

.roadmap-input-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.83rem;
  color: var(--muted);
  font-weight: 600;
}

.roadmap-progress-top {
  margin-top: 10px;
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
}

.roadmap-progress-top strong {
  font-size: 2rem;
  line-height: 1;
  font-family: 'Space Grotesk', sans-serif;
}

.roadmap-progress-bar {
  margin-top: 10px;
  height: 12px;
}

.roadmap-stats-grid {
  margin-top: 12px;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.roadmap-stats-grid div {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 11px;
  padding: 10px;
  background: #fff;
}

.roadmap-stats-grid label {
  display: block;
  font-size: 0.74rem;
  color: var(--muted);
}

.roadmap-stats-grid strong {
  font-size: 0.92rem;
}

.roadmap-reco-text {
  margin-top: 10px;
}

.roadmap {
  margin-top: 12px;
}

.milestone-card {
  border: 1px solid rgba(0, 0, 0, 0.1);
  background: linear-gradient(160deg, #fff, #fbfcff);
  border-radius: 14px;
  padding: 12px;
  cursor: move;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.06);
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
}

.milestone-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.1);
  border-color: rgba(15, 123, 108, 0.35);
}

.roadmap-step.next {
  border-color: var(--accent);
  background: linear-gradient(160deg, #fff7ef, #fffdf9);
}

.milestone-main {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.milestone-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: #f3f7ff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.milestone-copy {
  min-width: 0;
}

.milestone-title {
  display: block;
  font-size: 0.96rem;
}

.milestone-meta {
  margin-top: 4px;
  display: inline-flex;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--muted);
}

.milestone-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.milestone-status {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 700;
}

.milestone-status.not-started {
  background: #ece6da;
  color: #5f5a53;
}

.milestone-status.in-progress {
  background: #fff4d6;
  color: #b45309;
}

.milestone-status.completed {
  background: #d8f5df;
  color: #157f37;
}

@media (max-width: 980px) {
  .roadmap-input-grid,
  .roadmap-stats-grid {
    grid-template-columns: 1fr;
  }

  .milestone-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .milestone-actions {
    justify-content: flex-start;
  }
}

/* ============================================================
   COMPREHENSIVE MODERN UI SYSTEM - ENHANCED COMPONENTS
   =========================================================== */

/* Typography Utilities */
h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.2;
  font-weight: 700;
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  line-height: 1.3;
  font-weight: 700;
}

h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  line-height: 1.3;
  font-weight: 600;
}

h4 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

p {
  line-height: 1.6;
  color: var(--text);
}

.text-sm {
  font-size: 0.875rem;
}

.text-xs {
  font-size: 0.75rem;
}

.text-lg {
  font-size: 1.125rem;
}

.text-muted {
  color: var(--muted);
}

.font-semibold {
  font-weight: 600;
}

.font-bold {
  font-weight: 700;
}

/* Spacing Utilities */
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }

.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }

.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }

/* Enhanced Button System */
.btn {
  border: 0;
  border-radius: 11px;
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 200ms ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9rem;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
}

.btn:active {
  transform: translateY(0);
}

/* Primary Button */
.btn.primary {
  background: linear-gradient(135deg, var(--primary), #1a9d8a);
  color: #fff;
  font-weight: 600;
}

.btn.primary:hover {
  box-shadow: 0 12px 24px rgba(15, 123, 108, 0.25);
}

.btn.primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Secondary Button */
.btn.secondary {
  background: #f0f0f0;
  color: var(--text);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.btn.secondary:hover {
  background: #e8e8e8;
  border-color: rgba(0, 0, 0, 0.2);
}

/* Outline Button */
.btn.outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn.outline:hover {
  background: rgba(15, 123, 108, 0.08);
}

/* Success Button */
.btn.success {
  background: linear-gradient(135deg, var(--ok), #1a9944);
  color: #fff;
}

.btn.success:hover {
  box-shadow: 0 12px 24px rgba(21, 127, 55, 0.25);
}

/* Warning Button */
.btn.warning {
  background: linear-gradient(135deg, var(--accent), #ff9047);
  color: #fff;
}

.btn.warning:hover {
  box-shadow: 0 12px 24px rgba(255, 122, 24, 0.25);
}

/* Danger Button */
.btn.danger {
  background: linear-gradient(135deg, var(--danger), #e64540);
  color: #fff;
}

.btn.danger:hover {
  box-shadow: 0 12px 24px rgba(198, 52, 45, 0.25);
}

/* Button Sizes */
.btn.sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: 8px;
}

.btn.lg {
  padding: 14px 24px;
  font-size: 1rem;
  border-radius: 12px;
}

.btn.full {
  width: 100%;
}

.btn i {
  font-size: 1em;
}

/* Enhanced Form Styling */
label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  color: var(--text);
  font-size: 0.9rem;
}

input,
select,
textarea {
  width: 100%;
  border: 1.5px solid rgba(0, 0, 0, 0.12);
  background: #fff;
  border-radius: 10px;
  padding: 11px 14px;
  font-family: inherit;
  font-size: 0.9rem;
  transition: all 200ms ease;
  color: var(--text);
}

input::placeholder,
textarea::placeholder,
select {
  color: var(--muted);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15, 123, 108, 0.12);
  background: #fff;
}

input:disabled,
select:disabled,
textarea:disabled {
  background: #f5f5f5;
  color: var(--muted);
  cursor: not-allowed;
}

input[type="checkbox"],
input[type="radio"] {
  width: auto;
  cursor: pointer;
  margin-right: 8px;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

.form-group {
  margin-bottom: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-error {
  color: var(--danger);
  font-size: 0.8rem;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.form-success {
  color: var(--ok);
  font-size: 0.8rem;
  margin-top: 4px;
}

.form-hint {
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 4px;
}

/* Enhanced Select Dropdown */
select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235f5a53' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  background-color: #fff;
}

/* Modern Card Variants */
.card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  animation: riseIn 420ms ease;
  transition: all 200ms ease;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.card:hover {
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.card.flat {
  box-shadow: none;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.card.bordered {
  box-shadow: none;
  border: 2px solid rgba(0, 0, 0, 0.15);
}

.card.gradient {
  background: linear-gradient(135deg, #ffffff 0%, #f8fbff 100%);
}

.card.elevated {
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.12);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.card-header h3 {
  margin: 0;
  font-size: 1.1rem;
}

.card-body {
  margin-bottom: 12px;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

/* Enhanced Table Styles */
.table-container {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}

thead {
  background: #f8f9fa;
  border-bottom: 2px solid rgba(0, 0, 0, 0.08);
}

th {
  padding: 14px;
  text-align: left;
  font-weight: 600;
  color: var(--text);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  color: var(--text);
}

tbody tr {
  transition: background 150ms ease;
}

tbody tr:hover {
  background: #f8f9fa;
}

tbody tr:last-child td {
  border-bottom: none;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 6px 12px;
  white-space: nowrap;
}

.badge.primary {
  background: rgba(15, 123, 108, 0.15);
  color: var(--primary);
}

.badge.success {
  background: rgba(21, 127, 55, 0.15);
  color: var(--ok);
}

.badge.warning {
  background: rgba(255, 122, 24, 0.15);
  color: var(--accent);
}

.badge.danger {
  background: rgba(198, 52, 45, 0.15);
  color: var(--danger);
}

.badge.info {
  background: rgba(47, 111, 237, 0.15);
  color: var(--study);
}

.badge.secondary {
  background: rgba(0, 0, 0, 0.08);
  color: var(--muted);
}

.badge-dot {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.badge-dot::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: block;
}

.badge.success .badge-dot::before {
  background: var(--ok);
}

.badge.warning .badge-dot::before {
  background: var(--accent);
}

.badge.danger .badge-dot::before {
  background: var(--danger);
}

/* Pill Badges */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.08);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid rgba(0, 0, 0, 0.12);
}

.pill.filled {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.pill.accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* Enhanced Modal */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 100;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  animation: fadeIn 200ms ease;
}

.modal-content {
  position: relative;
  background: #fff;
  border-radius: 16px;
  width: min(600px, 90vw);
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  animation: scaleIn 200ms ease;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.modal-header h2 {
  margin: 0;
  font-size: 1.3rem;
}

.modal-close {
  background: transparent;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 150ms ease;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.08);
  color: var(--text);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

/* Enhanced Progress Bar */
.progress {
  height: 12px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.08);
  overflow: hidden;
  position: relative;
}

.progress > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 999px;
  transition: width 300ms ease;
}

.progress.success > span {
  background: linear-gradient(90deg, var(--ok), #26a366);
}

.progress.warning > span {
  background: linear-gradient(90deg, var(--accent), #ff9047);
}

.progress.danger > span {
  background: linear-gradient(90deg, var(--danger), #e64540);
}

/* Stat Card */
.stat-card {
  background: var(--surface);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  transition: all 150ms ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
  border-color: rgba(15, 123, 108, 0.2);
}

.stat-value {
  font-size: 2.2rem;
  font-weight: 700;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-change {
  margin-top: 8px;
  font-size: 0.8rem;
  font-weight: 600;
}

.stat-change.up {
  color: var(--ok);
}

.stat-change.down {
  color: var(--danger);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  border: 2px dashed rgba(0, 0, 0, 0.15);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.02);
}

.empty-state-icon {
  font-size: 3rem;
  color: rgba(0, 0, 0, 0.2);
  margin-bottom: 16px;
}

.empty-state h3 {
  color: var(--text);
  margin-bottom: 8px;
}

.empty-state p {
  color: var(--muted);
  margin-bottom: 20px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* Loading State */
.loading {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 600ms linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Alert/Notification */
.alert {
  border-radius: 12px;
  padding: 14px 16px;
  border-left: 4px solid;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.alert-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.alert-content {
  flex: 1;
}

.alert-title {
  font-weight: 700;
  margin-bottom: 4px;
}

.alert.success {
  background: rgba(21, 127, 55, 0.08);
  border-color: var(--ok);
  color: var(--ok);
}

.alert.warning {
  background: rgba(255, 122, 24, 0.08);
  border-color: var(--accent);
  color: var(--accent);
}

.alert.danger {
  background: rgba(198, 52, 45, 0.08);
  border-color: var(--danger);
  color: var(--danger);
}

.alert.info {
  background: rgba(47, 111, 237, 0.08);
  border-color: var(--study);
  color: var(--study);
}

/* Flex Utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

/* Grid Utilities */
.grid {
  display: grid;
  gap: 16px;
}

.grid.cols-1 {
  grid-template-columns: 1fr;
}

.grid.cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid.auto {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* List Items */
.list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  transition: all 150ms ease;
}

.list-item:hover {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.12);
}

.list-item-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(15, 123, 108, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.list-item-content {
  flex: 1;
}

.list-item-title {
  font-weight: 600;
  color: var(--text);
}

.list-item-subtitle {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 2px;
}

/* Dropdown Menu */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
  z-index: 50;
  border: 1px solid rgba(0, 0, 0, 0.08);
  overflow: hidden;
  animation: scaleIn 150ms ease;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  color: var(--text);
  cursor: pointer;
  transition: all 150ms ease;
  text-decoration: none;
  border: none;
  background: none;
  font-size: inherit;
  width: 100%;
  text-align: left;
}

.dropdown-item:hover {
  background: rgba(15, 123, 108, 0.08);
  color: var(--primary);
}

.dropdown-item.active {
  background: rgba(15, 123, 108, 0.15);
  color: var(--primary);
  font-weight: 600;
}

.dropdown-divider {
  height: 1px;
  background: rgba(0, 0, 0, 0.08);
  margin: 4px 0;
}

/* Tooltip */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip-text {
  visibility: hidden;
  background: #111827;
  color: #fff;
  text-align: center;
  border-radius: 8px;
  padding: 8px 12px;
  position: absolute;
  z-index: 1;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 0.8rem;
  opacity: 0;
  transition: opacity 200ms ease;
}

.tooltip:hover .tooltip-text {
  visibility: visible;
  opacity: 1;
}

/* Responsive Grid System */
@media (max-width: 1200px) {
  .grid.cols-4 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .grid.cols-3,
  .grid.cols-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .modal-content {
    width: 95vw;
  }

  .stat-card {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .grid.cols-2,
  .grid.cols-3,
  .grid.cols-4,
  .grid.auto {
    grid-template-columns: 1fr;
  }

  .flex-between {
    flex-direction: column;
    align-items: flex-start;
  }

  .modal-footer {
    flex-direction: column-reverse;
  }

  .modal-footer .btn {
    width: 100%;
  }
}

/* Admin Portal */
body.admin-portal {
  background:
    radial-gradient(circle at 10% 10%, rgba(47, 111, 237, 0.12), transparent 28%),
    radial-gradient(circle at 88% 12%, rgba(15, 123, 108, 0.16), transparent 26%),
    linear-gradient(180deg, #f3f7fb 0%, #eef4f8 100%);
}

.admin-portal .co-admin-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
}

.admin-portal .co-admin-aside {
  position: sticky;
  top: 0;
  align-self: start;
  min-height: 100vh;
  padding: 24px 18px;
  background:
    linear-gradient(180deg, rgba(13, 30, 42, 0.98) 0%, rgba(19, 42, 61, 0.98) 100%),
    #102233;
  color: #dce8f3;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 32px 0 80px rgba(8, 18, 26, 0.25), inset -1px 0 0 rgba(255, 255, 255, 0.04);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.admin-portal .co-admin-brand {
  display: grid;
  gap: 10px;
  padding: 8px 10px 18px;
}

.admin-portal .co-admin-brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2f6fed, #0f7b6c);
  color: #fff;
  box-shadow: 0 16px 32px rgba(47, 111, 237, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.16);
  font-size: 1.15rem;
  transition: all 200ms ease;
}

.admin-portal .co-admin-brand-mark:hover {
  transform: scale(1.08);
  box-shadow: 0 20px 40px rgba(47, 111, 237, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.admin-portal .co-admin-brand h1,
.admin-portal .co-admin-brand h2 {
  margin: 0;
  color: #fff;
  font-size: 1.18rem;
}

.admin-portal .co-admin-brand p {
  margin: 0;
  color: rgba(220, 232, 243, 0.72);
  font-size: 0.88rem;
  line-height: 1.55;
}

.admin-portal .co-admin-nav-section {
  margin-top: 16px;
}

.admin-portal .co-admin-nav-label {
  margin: 0 0 10px;
  padding: 0 10px;
  color: rgba(220, 232, 243, 0.52);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.68rem;
  font-weight: 700;
}

.admin-portal .co-admin-nav {
  display: grid;
  gap: 8px;
}

.admin-portal .co-admin-nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  color: rgba(220, 232, 243, 0.82);
  transition: transform 160ms cubic-bezier(0.34, 1.56, 0.64, 1), background 160ms ease, color 160ms ease, box-shadow 160ms ease, border-radius 160ms ease;
  position: relative;
  overflow: hidden;
}

.admin-portal .co-admin-nav-link::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.08), transparent 60%);
  opacity: 0;
  transition: opacity 300ms ease;
  pointer-events: none;
}

.admin-portal .co-admin-nav-link:hover {
  transform: translateX(4px) scale(1.02);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-radius: 12px;
}

.admin-portal .co-admin-nav-link:hover::before {
  opacity: 1;
}

.admin-portal .co-admin-nav-link.active {
  background: linear-gradient(135deg, rgba(47, 111, 237, 0.26), rgba(15, 123, 108, 0.28));
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12), 0 12px 32px rgba(15, 123, 108, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  font-weight: 600;
}

.admin-portal .co-admin-nav-link i {
  width: 18px;
  text-align: center;
}

.admin-portal .co-admin-side-card {
  margin-top: auto;
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
  transition: all 200ms ease;
  cursor: pointer;
}

.admin-portal .co-admin-side-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.admin-portal .co-admin-side-card strong {
  display: block;
  color: #fff;
  margin-bottom: 6px;
}

.admin-portal .co-admin-side-card p {
  margin: 0;
  color: rgba(220, 232, 243, 0.72);
  font-size: 0.85rem;
  line-height: 1.55;
}

.admin-portal .co-admin-main {
  padding: 24px;
}

.admin-portal .co-admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.admin-portal .co-admin-topbar-title h1,
.admin-portal .co-admin-topbar-title h2 {
  margin: 0;
  font-size: 1.45rem;
  color: #132639;
}

.admin-portal .co-admin-topbar-title p {
  margin: 6px 0 0;
  color: #627386;
  font-size: 0.92rem;
}

.admin-portal .co-admin-topbar-actions,
.admin-portal .co-admin-chip-row,
.admin-portal .co-admin-utility-grid,
.admin-portal .co-admin-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.admin-portal .co-admin-chip,
.admin-portal .co-admin-chip-soft {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 0.85rem;
  font-weight: 700;
  transition: all 160ms cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
}

.admin-portal .co-admin-chip {
  background: #fff;
  color: #264055;
  border: 1px solid rgba(15, 35, 54, 0.1);
  box-shadow: 0 8px 20px rgba(12, 27, 42, 0.08);
}

.admin-portal .co-admin-chip:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(12, 27, 42, 0.12);
  border-color: rgba(15, 35, 54, 0.15);
}

.admin-portal .co-admin-chip-soft {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(4px);
}

.admin-portal .co-admin-chip-soft:hover {
  background: rgba(255, 255, 255, 0.26);
  border-color: rgba(255, 255, 255, 0.24);
  transform: translateY(-2px);
}

.admin-portal .co-admin-hero {
  position: relative;
  overflow: hidden;
  margin-bottom: 22px;
  padding: 32px;
  border-radius: 28px;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.16), transparent 28%),
    linear-gradient(135deg, #183c66 0%, #145a7e 38%, #0f7b6c 100%);
  color: #fff;
  box-shadow: 0 32px 64px rgba(20, 45, 68, 0.26), inset 0 1px 1px rgba(255, 255, 255, 0.12);
}

.admin-portal .co-admin-hero::after {
  content: '';
  position: absolute;
  inset: auto -80px -90px auto;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.2), transparent 68%);
  filter: blur(2px);
}

.admin-portal .co-admin-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.95fr);
  gap: 22px;
  align-items: stretch;
}

.admin-portal .co-admin-hero h1,
.admin-portal .co-admin-hero h2 {
  margin: 0;
  font-size: clamp(2.1rem, 3.2vw, 3rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.admin-portal .co-admin-hero p {
  margin: 14px 0 0;
  max-width: 64ch;
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.75;
  font-size: 1rem;
}

.admin-portal .co-admin-hero-insights {
  display: grid;
  gap: 14px;
}

.admin-portal .co-admin-glass-card,
.admin-portal .co-admin-panel,
.admin-portal .co-admin-stat,
.admin-portal .co-admin-module-card,
.admin-portal .co-admin-utility-card,
.admin-portal .co-admin-health-card {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(18, 40, 58, 0.1);
  box-shadow: 0 20px 48px rgba(16, 34, 51, 0.1), 0 1px 2px rgba(16, 34, 51, 0.04), inset 0 1px 0 rgba(255, 255, 255, 0.8);
  border-radius: 24px;
  backdrop-filter: blur(8px);
  transition: all 180ms ease;
}

.admin-portal .co-admin-glass-card {
  padding: 18px;
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.admin-portal .co-admin-hero-list {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.admin-portal .co-admin-hero-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 0;
  transition: transform 160ms ease;
}

.admin-portal .co-admin-hero-item:hover {
  transform: translateX(4px);
}

.admin-portal .co-admin-hero-item i {
  margin-top: 2px;
  font-size: 1.2rem;
  opacity: 0.95;
  transition: transform 160ms ease;
}

.admin-portal .co-admin-hero-item:hover i {
  transform: scale(1.1);
}

.admin-portal .co-admin-hero-item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.admin-portal .co-admin-hero-item span,
.admin-portal .co-admin-glass-card p {
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.6;
}

.admin-portal .co-admin-section {
  margin-top: 24px;
}

.admin-portal .co-admin-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.admin-portal .co-admin-section-head h3,
.admin-portal .co-admin-section-head h2 {
  margin: 0;
  font-size: 1.28rem;
  color: #132639;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.admin-portal .co-admin-section-head p {
  margin: 6px 0 0;
  color: #68798b;
  font-size: 0.92rem;
  line-height: 1.5;
  opacity: 0.95;
}

.admin-portal .co-admin-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.admin-portal .co-admin-stat {
  padding: 18px;
  transition: transform 180ms cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 180ms ease, border-color 180ms ease, background 180ms ease;
  position: relative;
  overflow: hidden;
}

.admin-portal .co-admin-stat::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(47, 111, 237, 0), rgba(47, 111, 237, 0.4), rgba(47, 111, 237, 0));
  opacity: 0;
  transition: opacity 300ms ease;
}

.admin-portal .co-admin-stat:hover::before {
  opacity: 1;
}

.admin-portal .co-admin-stat:hover,
.admin-portal .co-admin-module-card:hover,
.admin-portal .co-admin-utility-card:hover,
.admin-portal .co-admin-panel:hover {
  transform: translateY(-6px);
  box-shadow: 0 28px 60px rgba(16, 34, 51, 0.16);
  border-color: rgba(47, 111, 237, 0.12);
}

.admin-portal .co-admin-stat-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.admin-portal .co-admin-icon-badge {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(47, 111, 237, 0.16), rgba(15, 123, 108, 0.16));
  color: #1d5f96;
  font-size: 1.2rem;
  transition: all 160ms ease;
  box-shadow: 0 6px 16px rgba(47, 111, 237, 0.1);
}

.admin-portal .co-admin-stat:hover .co-admin-icon-badge {
  transform: scale(1.08);
  box-shadow: 0 10px 24px rgba(47, 111, 237, 0.16);
}

.admin-portal .co-admin-stat-label {
  margin: 14px 0 8px;
  color: #607183;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.92;
}

.admin-portal .co-admin-stat-value {
  margin: 0;
  font-size: 2.2rem;
  line-height: 1;
  color: #102233;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.admin-portal .co-admin-trend {
  margin-top: 10px;
  color: #6f8092;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 160ms ease;
}

.admin-portal .co-admin-trend i {
  transition: transform 160ms ease;
}

.admin-portal .co-admin-stat:hover .co-admin-trend {
  color: #132639;
}

.admin-portal .co-admin-stat:hover .co-admin-trend.up {
  color: #157f37;
}

.admin-portal .co-admin-stat:hover .co-admin-trend i {
  transform: translateY(-2px);
}

.admin-portal .co-admin-trend.up { color: #157f37; }
.admin-portal .co-admin-trend.warn { color: #b45309; }

.admin-portal .co-admin-grid {
  display: grid;
  gap: 16px;
}

.admin-portal .co-admin-grid.two {
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.95fr);
}

.admin-portal .co-admin-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-portal .co-admin-grid.modules {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-portal .co-admin-module-card,
.admin-portal .co-admin-utility-card,
.admin-portal .co-admin-panel,
.admin-portal .co-admin-health-card {
  padding: 20px;
}

.admin-portal .co-admin-module-card {
  display: grid;
  gap: 14px;
  color: inherit;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.admin-portal .co-admin-module-card::after {
  content: '';
  position: absolute;
  inset: auto -40px -40px auto;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(47, 111, 237, 0.12), transparent 70%);
  filter: blur(1px);
  z-index: 0;
}

.admin-portal .co-admin-module-card > * {
  position: relative;
  z-index: 1;
}

.admin-portal .co-admin-module-card h4,
.admin-portal .co-admin-utility-card h4,
.admin-portal .co-admin-panel h4 {
  margin: 0;
  color: #132639;
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.admin-portal .co-admin-module-card p,
.admin-portal .co-admin-utility-card p,
.admin-portal .co-admin-panel p,
.admin-portal .co-admin-health-card p {
  margin: 0;
  color: #68798b;
  line-height: 1.7;
  font-size: 0.93rem;
}

.admin-portal .co-admin-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.admin-portal .co-admin-mini-stat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 10px;
  background: linear-gradient(135deg, #f6f9fc, #f0f5fb);
  color: #4d6276;
  font-size: 0.83rem;
  font-weight: 700;
  border: 1px solid rgba(16, 34, 51, 0.06);
  transition: all 140ms ease;
}

.admin-portal .co-admin-mini-stat:hover {
  background: linear-gradient(135deg, #eef3fb, #e5ecf8);
  border-color: rgba(47, 111, 237, 0.1);
  transform: translateY(-1px);
}

.admin-portal .co-admin-utility-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.admin-portal .co-admin-utility-card {
  display: flex;
  align-items: center;
  gap: 14px;
}

.admin-portal .co-admin-panel {
  overflow: hidden;
}

.admin-portal .co-admin-list {
  display: grid;
  gap: 12px;
}

.admin-portal .co-admin-list-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(16, 34, 51, 0.08);
  transition: background 140ms ease;
}

.admin-portal .co-admin-list-item:hover {
  background: rgba(47, 111, 237, 0.02);
}

.admin-portal .co-admin-list-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.admin-portal .co-admin-kicker {
  margin: 0 0 6px;
  color: #607183;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.admin-portal .co-admin-data-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-portal .co-admin-data-table th,
.admin-portal .co-admin-data-table td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid rgba(16, 34, 51, 0.08);
  vertical-align: middle;
  transition: background 140ms ease;
}

.admin-portal .co-admin-data-table tbody tr:hover {
  background: rgba(47, 111, 237, 0.04);
}

.admin-portal .co-admin-data-table th {
  color: #5f7184;
  font-size: 0.73rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  background: linear-gradient(180deg, #f9fbfd 0%, #f5f8fb 100%);
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 2px solid rgba(16, 34, 51, 0.12);
}

.admin-portal .co-admin-table-wrap {
  overflow: auto;
  border: 1px solid rgba(16, 34, 51, 0.1);
  border-radius: 18px;
  box-shadow: 0 8px 20px rgba(16, 34, 51, 0.06);
  -webkit-overflow-scrolling: touch;
}

.admin-portal .co-admin-table-wrap::-webkit-scrollbar {
  height: 8px;
}

.admin-portal .co-admin-table-wrap::-webkit-scrollbar-track {
  background: transparent;
}

.admin-portal .co-admin-table-wrap::-webkit-scrollbar-thumb {
  background: rgba(16, 34, 51, 0.1);
  border-radius: 4px;
}

.admin-portal .co-admin-table-wrap::-webkit-scrollbar-thumb:hover {
  background: rgba(16, 34, 51, 0.16);
}

.admin-portal .co-admin-badge,
.admin-portal .co-admin-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  border: 1px solid;
  transition: all 150ms ease;
}

.admin-portal .co-admin-badge {
  background: linear-gradient(135deg, #ecf3fb, #e8f2ff);
  color: #264d75;
  border-color: rgba(38, 77, 117, 0.15);
}

.admin-portal .co-admin-status.ok {
  background: linear-gradient(135deg, #e8f8ee, #dcf5e8);
  color: #0f5a28;
  border-color: rgba(15, 90, 40, 0.15);
}

.admin-portal .co-admin-status.warn,
.admin-portal .co-admin-status.pending {
  background: linear-gradient(135deg, #fff4d6, #ffe8b4);
  color: #8a4d0c;
  border-color: rgba(138, 77, 12, 0.15);
}

.admin-portal .co-admin-status.info {
  background: linear-gradient(135deg, #eaf2ff, #d8e6ff);
  color: #1d40a6;
  border-color: rgba(29, 64, 166, 0.15);
}

.admin-portal .co-admin-status.danger,
.admin-portal .co-admin-status.reject {
  background: linear-gradient(135deg, #fde7e7, #fdd5d5);
  color: #8e2e2e;
  border-color: rgba(142, 46, 46, 0.15);
}

.admin-portal .co-admin-feedback-card {
  padding: 16px;
  border-radius: 18px;
  background: #f8fbfd;
  border: 1px solid rgba(16, 34, 51, 0.08);
}

.admin-portal .co-admin-feedback-card textarea,
.admin-portal .co-admin-form input,
.admin-portal .co-admin-form select,
.admin-portal .co-admin-form textarea,
.admin-portal .co-admin-panel input,
.admin-portal .co-admin-panel select,
.admin-portal .co-admin-panel textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1.5px solid rgba(16, 34, 51, 0.12);
  background: #fff;
  color: #102233;
  font: inherit;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.admin-portal .co-admin-feedback-card textarea:focus,
.admin-portal .co-admin-form input:focus,
.admin-portal .co-admin-form select:focus,
.admin-portal .co-admin-form textarea:focus,
.admin-portal .co-admin-panel input:focus,
.admin-portal .co-admin-panel select:focus,
.admin-portal .co-admin-panel textarea:focus {
  outline: none;
  border-color: rgba(47, 111, 237, 0.6);
  box-shadow: 0 0 0 4px rgba(47, 111, 237, 0.14), 0 4px 12px rgba(47, 111, 237, 0.1);
  background: #f8fbff;
}

.admin-portal .co-admin-form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.admin-portal .co-admin-field {
  display: grid;
  gap: 8px;
}

.admin-portal .co-admin-field.full {
  grid-column: 1 / -1;
}

.admin-portal .co-admin-field label {
  color: #5f7184;
  font-size: 0.84rem;
  font-weight: 700;
}

.admin-portal .co-admin-table-empty {
  padding: 48px 28px;
  text-align: center;
  color: #6f8092;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.admin-portal .co-admin-table-empty::before {
  content: '';
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(47, 111, 237, 0.1), rgba(15, 123, 108, 0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 8px;
}

.admin-portal .co-admin-table-empty strong {
  display: block;
  color: #132639;
  font-size: 1rem;
  margin-top: 8px;
}

.admin-portal .co-admin-table-empty p {
  margin: 6px 0 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.admin-portal .co-admin-inline-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.admin-portal .co-admin-health-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.admin-portal .co-admin-health-card strong {
  display: block;
  margin-top: 10px;
  color: #132639;
}

.admin-portal .btn {
  border-radius: 12px;
  padding: 12px 18px;
  font-weight: 700;
  font-size: 0.9rem;
  border: none;
  transition: all 160ms cubic-bezier(0.34, 1.56, 0.64, 1);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.admin-portal .btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 255, 255, 0.2), transparent 60%);
  opacity: 0;
  transition: opacity 300ms ease;
}

.admin-portal .btn:hover::before {
  opacity: 1;
}

.admin-portal .btn:hover {
  transform: translateY(-2px);
}

.admin-portal .btn.primary {
  background: linear-gradient(135deg, #2f6fed, #0f7b6c);
  color: #fff;
  box-shadow: 0 10px 24px rgba(47, 111, 237, 0.2);
}

.admin-portal .btn.primary:hover {
  box-shadow: 0 14px 32px rgba(47, 111, 237, 0.28);
}

.admin-portal .btn.secondary {
  background: #fff;
  border: 1.5px solid rgba(16, 34, 51, 0.14);
  color: #20384d;
  box-shadow: 0 2px 8px rgba(16, 34, 51, 0.06);
}

.admin-portal .btn.secondary:hover {
  background: #f9fbfd;
  border-color: rgba(16, 34, 51, 0.2);
  box-shadow: 0 6px 16px rgba(16, 34, 51, 0.1);
}

.admin-portal .btn.warn,
.admin-portal .btn.warning {
  background: linear-gradient(135deg, #ff9e44, #ff7a18);
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 122, 24, 0.22);
}

.admin-portal .btn.warn:hover,
.admin-portal .btn.warning:hover {
  box-shadow: 0 14px 32px rgba(255, 122, 24, 0.3);
}

.admin-portal .btn.danger {
  background: linear-gradient(135deg, #d74f4f, #b92626);
  color: #fff;
  box-shadow: 0 10px 24px rgba(215, 79, 79, 0.2);
}

.admin-portal .btn.danger:hover {
  box-shadow: 0 14px 32px rgba(215, 79, 79, 0.28);
}

.admin-portal .btn.success {
  background: linear-gradient(135deg, #1aa06d, #157f37);
  color: #fff;
  box-shadow: 0 10px 24px rgba(26, 160, 109, 0.2);
}

.admin-portal .btn.success:hover {
  box-shadow: 0 14px 32px rgba(26, 160, 109, 0.28);
}

.admin-portal .co-admin-page-block {
  display: grid;
  gap: 20px;
}

.admin-portal .co-admin-builder-block {
  padding: 16px;
  border-radius: 18px;
  background: #f7fafc;
  border: 1px solid rgba(16, 34, 51, 0.08);
}

.admin-portal .co-admin-option-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
}

.admin-portal .co-admin-option-row input[type='radio'] {
  width: auto;
  transform: scale(1.05);
}

.admin-portal .co-admin-subhero {
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(135deg, #16395f 0%, #0f7b6c 100%);
  color: #fff;
  box-shadow: 0 20px 40px rgba(16, 34, 51, 0.16);
}

.admin-portal .co-admin-subhero h1 {
  margin: 0;
  font-size: 2rem;
}

.admin-portal .co-admin-subhero p {
  margin: 10px 0 0;
  max-width: 64ch;
  color: rgba(255, 255, 255, 0.88);
}

.admin-portal .co-admin-page-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.admin-portal .co-admin-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.admin-portal .co-admin-subnav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.admin-portal .co-admin-subnav a.active {
  background: #fff;
  color: #173c60;
}

@media (max-width: 1200px) {
  .admin-portal .co-admin-stats,
  .admin-portal .co-admin-grid.modules,
  .admin-portal .co-admin-health-grid,
  .admin-portal .co-admin-utility-grid,
  .admin-portal .co-admin-form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-portal .co-admin-grid.two,
  .admin-portal .co-admin-hero-grid {
    grid-template-columns: 1fr;
  }
  
  .admin-portal .co-admin-hero-insights {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px) {
  .admin-portal .co-admin-shell {
    grid-template-columns: 1fr;
  }

  .admin-portal .co-admin-aside {
    position: static;
    min-height: auto;
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 18px;
  }

  .admin-portal .co-admin-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .admin-portal .co-admin-main {
    padding: 18px;
  }
  
  .admin-portal .co-admin-hero {
    padding: 24px;
  }
}

@media (max-width: 640px) {
  .admin-portal .co-admin-topbar,
  .admin-portal .co-admin-section-head,
  .admin-portal .co-admin-list-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .admin-portal .co-admin-stats,
  .admin-portal .co-admin-grid.modules,
  .admin-portal .co-admin-health-grid,
  .admin-portal .co-admin-utility-grid,
  .admin-portal .co-admin-form-grid,
  .admin-portal .co-admin-nav {
    grid-template-columns: 1fr;
  }

  .admin-portal .co-admin-hero,
  .admin-portal .co-admin-subhero,
  .admin-portal .co-admin-panel,
  .admin-portal .co-admin-module-card,
  .admin-portal .co-admin-utility-card,
  .admin-portal .co-admin-stat {
    border-radius: 20px;
    padding: 18px;
  }

  .admin-portal .co-admin-main {
    padding: 14px;
  }
  
  .admin-portal .co-admin-aside {
    padding: 16px;
  }
  
  .admin-portal .co-admin-stat-value {
    font-size: 1.8rem;
  }
  
  .admin-portal .co-admin-hero h1,
  .admin-portal .co-admin-hero h2 {
    font-size: 1.8rem;
  }
}

/* ===== Premium Product Refresh ===== */
body:not(.admin-portal) {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --surface-2: #eef3fb;
  --text: #0f1b2d;
  --muted: #566273;
  --primary: #0f766e;
  --accent: #e56a0a;
  --ring: rgba(15, 118, 110, 0.22);
  background:
    radial-gradient(circle at 12% -8%, rgba(45, 125, 255, 0.17), transparent 34%),
    radial-gradient(circle at 88% -4%, rgba(246, 164, 42, 0.17), transparent 36%),
    linear-gradient(180deg, #f7f9fd 0%, #f0f4fb 100%);
}

body:not(.admin-portal) .main-area {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0));
}

body:not(.admin-portal) .content {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
}

body:not(.admin-portal) .sidebar {
  background:
    radial-gradient(circle at 10% 0%, rgba(15, 118, 110, 0.09), transparent 45%),
    linear-gradient(178deg, #fcfefe 0%, #f3f7ff 100%);
  border-right: 1px solid rgba(15, 27, 45, 0.08);
}

body:not(.admin-portal) .nav-group-title {
  color: #6d7888;
  font-size: 0.67rem;
}

body:not(.admin-portal) .nav-link {
  border-radius: 12px;
}

body:not(.admin-portal) .nav-link.active {
  background: linear-gradient(90deg, rgba(15, 118, 110, 0.15), rgba(47, 111, 237, 0.08));
}

body:not(.admin-portal) .topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-radius: 0 0 16px 16px;
  border-bottom: 1px solid rgba(15, 27, 45, 0.09);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 24px rgba(15, 27, 45, 0.08);
}

body:not(.admin-portal) #pageTitle {
  font-size: 1.12rem;
  letter-spacing: -0.02em;
}

body:not(.admin-portal) .icon-chip {
  border-radius: 999px;
  border: 1px solid rgba(15, 27, 45, 0.1);
  background: #fff;
  padding: 8px 14px;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(15, 27, 45, 0.05);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

body:not(.admin-portal) .icon-chip:hover {
  transform: translateY(-2px);
  border-color: rgba(15, 118, 110, 0.42);
  box-shadow: 0 12px 24px rgba(15, 118, 110, 0.16);
}

body:not(.admin-portal) .hero {
  border-radius: 20px;
  background:
    radial-gradient(circle at 88% 12%, rgba(255, 216, 138, 0.27), transparent 44%),
    radial-gradient(circle at 10% 18%, rgba(78, 149, 255, 0.24), transparent 42%),
    linear-gradient(135deg, #163d6c 0%, #174a82 42%, #14608f 100%);
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: 0 18px 40px rgba(15, 27, 45, 0.24);
  color: #f7fbff;
}

body:not(.admin-portal) .hero p {
  color: rgba(245, 250, 255, 0.9);
}

body:not(.admin-portal) .card,
body:not(.admin-portal) .panel,
body:not(.admin-portal) .section-card,
body:not(.admin-portal) .notif-card,
body:not(.admin-portal) .forum-card,
body:not(.admin-portal) .stat-card,
body:not(.admin-portal) .summary-card,
body:not(.admin-portal) .daily-goals,
body:not(.admin-portal) .recent-activity,
body:not(.admin-portal) .motivation-widget {
  border-radius: 16px;
  border: 1px solid rgba(15, 27, 45, 0.09);
  box-shadow: 0 10px 28px rgba(15, 27, 45, 0.08);
}

body:not(.admin-portal) .card:hover,
body:not(.admin-portal) .panel:hover,
body:not(.admin-portal) .forum-card:hover,
body:not(.admin-portal) .notif-card:hover {
  box-shadow: 0 18px 34px rgba(15, 27, 45, 0.12);
}

body:not(.admin-portal) .btn,
body:not(.admin-portal) .btn-mini {
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

body:not(.admin-portal) .btn.primary {
  background: linear-gradient(135deg, #0f766e, #138d82);
  border-color: #0f766e;
}

body:not(.admin-portal) .btn.warn,
body:not(.admin-portal) .btn.warning {
  background: linear-gradient(135deg, #d97706, #ea8b16);
  border-color: #d97706;
}

body:not(.admin-portal) .btn.secondary {
  background: #ffffff;
  border-color: rgba(15, 27, 45, 0.14);
}

body:not(.admin-portal) .btn:hover {
  transform: translateY(-2px);
}

body:not(.admin-portal) input,
body:not(.admin-portal) select,
body:not(.admin-portal) textarea,
body:not(.admin-portal) .forum-search,
body:not(.admin-portal) .lb-search,
body:not(.admin-portal) .mock-search {
  border-radius: 12px;
  border: 1px solid rgba(15, 27, 45, 0.14);
  background: #fff;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

body:not(.admin-portal) input:focus,
body:not(.admin-portal) select:focus,
body:not(.admin-portal) textarea:focus {
  outline: none;
  border-color: #2f6fed;
  box-shadow: 0 0 0 4px rgba(47, 111, 237, 0.14);
}

body:not(.admin-portal) .pill,
body:not(.admin-portal) .small-pill,
body:not(.admin-portal) .tiny-pill,
body:not(.admin-portal) .badge {
  border-radius: 999px;
  font-weight: 700;
}

body:not(.admin-portal) .empty-state,
body:not(.admin-portal) .empty {
  border-radius: 14px;
  border: 1px dashed rgba(15, 27, 45, 0.2);
  background: linear-gradient(180deg, #f9fbff, #f2f7ff);
  color: #516276;
}

body:not(.admin-portal) .table-wrap,
body:not(.admin-portal) .leaderboard-table-wrap,
body:not(.admin-portal) .co-admin-table-wrap {
  border-radius: 14px;
}

body:not(.admin-portal) table,
body:not(.admin-portal) .leaderboard-table,
body:not(.admin-portal) .payment-history-table {
  border-radius: 12px;
  overflow: hidden;
}

body:not(.admin-portal) th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #64748b;
  background: #f8fbff;
}

body:not(.admin-portal) tr:hover td {
  background: #f7fbff;
}

body:not(.admin-portal) .quiz-grid .quiz-card,
body:not(.admin-portal) .mock-card,
body:not(.admin-portal) .resource-card,
body:not(.admin-portal) .thread-item,
body:not(.admin-portal) .feedback-card,
body:not(.admin-portal) .notif-item,
body:not(.admin-portal) .podium-card {
  border-radius: 14px;
  border: 1px solid rgba(15, 27, 45, 0.1);
  background: linear-gradient(180deg, #ffffff, #f8fbff);
}

body:not(.admin-portal) .quiz-grid .quiz-card:hover,
body:not(.admin-portal) .mock-card:hover,
body:not(.admin-portal) .resource-card:hover,
body:not(.admin-portal) .thread-item:hover,
body:not(.admin-portal) .feedback-card:hover,
body:not(.admin-portal) .notif-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(15, 27, 45, 0.12);
}

body:not(.admin-portal) .dashboard-welcome,
body:not(.admin-portal) .home-hero,
body:not(.admin-portal) .ref-hero {
  border-radius: 20px;
  box-shadow: 0 18px 40px rgba(15, 27, 45, 0.22);
}

body:not(.admin-portal) .stats-grid,
body:not(.admin-portal) .ref-stats-grid,
body:not(.admin-portal) .quick-stats {
  gap: 1rem;
}

body:not(.admin-portal) .tabs .tab,
body:not(.admin-portal) .chips .chip,
body:not(.admin-portal) .filter-chip,
body:not(.admin-portal) .lb-chip {
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid rgba(15, 27, 45, 0.14);
}

body:not(.admin-portal) .tabs .tab.active,
body:not(.admin-portal) .chips .chip.active,
body:not(.admin-portal) .filter-chip.active,
body:not(.admin-portal) .lb-chip.active {
  background: linear-gradient(135deg, #0f766e, #178f84);
  color: #fff;
  border-color: #0f766e;
}

body:not(.admin-portal) .progress {
  border-radius: 999px;
  background: #e6edf7;
}

body:not(.admin-portal) .progress > span {
  border-radius: inherit;
  background: linear-gradient(90deg, #0f766e, #2f6fed);
}

html[data-theme-mode='dark'] body:not(.admin-portal) .hero {
  background:
    radial-gradient(circle at 84% 14%, rgba(255, 205, 107, 0.15), transparent 44%),
    linear-gradient(135deg, #0b223f 0%, #133158 45%, #134269 100%);
  border-color: rgba(255, 255, 255, 0.12);
}

html[data-theme-mode='dark'] body:not(.admin-portal) .card,
html[data-theme-mode='dark'] body:not(.admin-portal) .panel,
html[data-theme-mode='dark'] body:not(.admin-portal) .forum-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .notif-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .mock-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .thread-item,
html[data-theme-mode='dark'] body:not(.admin-portal) .feedback-card {
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.34);
}

@media (max-width: 1100px) {
  body:not(.admin-portal) .content {
    padding: 18px;
  }

  body:not(.admin-portal) .topbar {
    border-radius: 0 0 12px 12px;
  }
}

@media (max-width: 768px) {
  body:not(.admin-portal) .content {
    padding: 14px;
  }

  body:not(.admin-portal) .hero {
    border-radius: 16px;
  }

  body:not(.admin-portal) .icon-chip {
    padding: 7px 12px;
    font-size: 0.85rem;
  }
}

/* ===== Page-Specific Premium Refinements ===== */
body:not(.admin-portal) .home-hero,
body:not(.admin-portal) .dashboard-welcome,
body:not(.admin-portal) .ref-hero {
  position: relative;
  overflow: hidden;
}

body:not(.admin-portal) .home-hero::after,
body:not(.admin-portal) .dashboard-welcome::after,
body:not(.admin-portal) .ref-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0));
  pointer-events: none;
}

body:not(.admin-portal) .home-hero .btn,
body:not(.admin-portal) .dashboard-welcome .btn,
body:not(.admin-portal) .ref-hero .btn {
  border-radius: 999px;
  font-weight: 700;
}

body:not(.admin-portal) .features-grid .feature-card,
body:not(.admin-portal) .about-feature-item,
body:not(.admin-portal) .motivation-list li {
  border-color: rgba(15, 27, 45, 0.1);
}

body:not(.admin-portal) .stats-grid .stat-card,
body:not(.admin-portal) .quick-stats .stat-card,
body:not(.admin-portal) .ref-stat-card,
body:not(.admin-portal) .stat {
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

body:not(.admin-portal) .goal-item,
body:not(.admin-portal) .activity-item,
body:not(.admin-portal) .quick-btn,
body:not(.admin-portal) .ref-reward-row,
body:not(.admin-portal) .ref-how-step {
  border-radius: 12px;
  border: 1px solid rgba(15, 27, 45, 0.1);
  background: #fff;
}

body:not(.admin-portal) .quick-btn:hover {
  border-color: rgba(15, 118, 110, 0.45);
}

body:not(.admin-portal) .quiz-info-bar,
body:not(.admin-portal) .question-card,
body:not(.admin-portal) .palette-card,
body:not(.admin-portal) .stats-card,
body:not(.admin-portal) .quiz-progress {
  border-radius: 16px;
  border: 1px solid rgba(15, 27, 45, 0.09);
  box-shadow: 0 10px 28px rgba(15, 27, 45, 0.08);
}

body:not(.admin-portal) .option-card {
  border-radius: 12px;
  border-color: rgba(15, 27, 45, 0.14);
}

body:not(.admin-portal) .option-card:hover {
  border-color: rgba(15, 118, 110, 0.45);
}

body:not(.admin-portal) .option-card.selected {
  background: linear-gradient(180deg, #ecfaf6, #e9f5ff);
}

body:not(.admin-portal) .lb-toolbar,
body:not(.admin-portal) .quiz-toolbar-card,
body:not(.admin-portal) .mock-toolbar,
body:not(.admin-portal) .forum-toolbar,
body:not(.admin-portal) .notif-head {
  gap: 0.8rem;
}

body:not(.admin-portal) .podium-card.first {
  background: linear-gradient(180deg, #fff7dc, #ffefc8);
  border-color: rgba(184, 134, 11, 0.25);
}

body:not(.admin-portal) .leaderboard-table tr.current-user {
  background: linear-gradient(90deg, #ebfaf1, #f3f9ff);
}

body:not(.admin-portal) .summary-card,
body:not(.admin-portal) .progress-item,
body:not(.admin-portal) .badge-card,
body:not(.admin-portal) .activity-box,
body:not(.admin-portal) .info-card,
body:not(.admin-portal) .section-card {
  border-radius: 14px;
}

body:not(.admin-portal) .summary-avatar,
body:not(.admin-portal) .avatar,
body:not(.admin-portal) .nicon,
body:not(.admin-portal) .ref-stat-icon,
body:not(.admin-portal) .activity-icon,
body:not(.admin-portal) .stat-card-icon {
  box-shadow: 0 8px 18px rgba(15, 27, 45, 0.2);
}

body:not(.admin-portal) .tabs .tab,
body:not(.admin-portal) .chip,
body:not(.admin-portal) .tag-item {
  transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
}

body:not(.admin-portal) .tabs .tab:hover,
body:not(.admin-portal) .chip:hover,
body:not(.admin-portal) .tag-item:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(15, 27, 45, 0.08);
}

body:not(.admin-portal) .notif-item.unread,
body:not(.admin-portal) .feedback-card,
body:not(.admin-portal) .thread-item {
  position: relative;
}

body:not(.admin-portal) .notif-item.unread::before,
body:not(.admin-portal) .feedback-card::before,
body:not(.admin-portal) .thread-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 12px 12px 0 0;
  background: linear-gradient(90deg, rgba(15, 118, 110, 0.92), rgba(47, 111, 237, 0.65));
  opacity: 0;
  transition: opacity 150ms ease;
}

body:not(.admin-portal) .notif-item.unread::before,
body:not(.admin-portal) .feedback-card:hover::before,
body:not(.admin-portal) .thread-item:hover::before {
  opacity: 1;
}

body:not(.admin-portal) .feedback-layout .panel,
body:not(.admin-portal) .forum-layout .forum-card,
body:not(.admin-portal) .notif-wrap .notif-card,
body:not(.admin-portal) .settings-layout .section-card {
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(15, 27, 45, 0.08);
}

body:not(.admin-portal) .switch-row,
body:not(.admin-portal) .sessions-list {
  border-radius: 12px;
  border-color: rgba(15, 27, 45, 0.13);
}

body:not(.admin-portal) .status,
body:not(.admin-portal) .ref-reward-status,
body:not(.admin-portal) .co-admin-status {
  border-radius: 999px;
  font-weight: 700;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

body:not(.admin-portal) .card,
body:not(.admin-portal) .panel,
body:not(.admin-portal) .forum-card,
body:not(.admin-portal) .notif-card,
body:not(.admin-portal) .stat-card,
body:not(.admin-portal) .feature-card,
body:not(.admin-portal) .mock-card,
body:not(.admin-portal) .quiz-card {
  animation: fadeSlideIn 260ms ease both;
}

/* ===== Real-Product Polish Layer ===== */
body:not(.admin-portal) .content > * + * {
  margin-top: 18px;
}

body:not(.admin-portal) .home-hero,
body:not(.admin-portal) .dashboard-welcome,
body:not(.admin-portal) .ref-hero {
  background:
    radial-gradient(circle at 84% 8%, rgba(255, 255, 255, 0.24), transparent 34%),
    radial-gradient(circle at 6% 100%, rgba(255, 255, 255, 0.12), transparent 32%),
    linear-gradient(135deg, #0f766e 0%, #176b9c 52%, #2458be 100%) !important;
  border: 1px solid rgba(255, 255, 255, 0.24);
}

body:not(.admin-portal) .home-hero h1,
body:not(.admin-portal) .dashboard-welcome h1,
body:not(.admin-portal) .ref-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem) !important;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

body:not(.admin-portal) .home-hero .subtitle,
body:not(.admin-portal) .dashboard-welcome p {
  font-size: clamp(1rem, 1.35vw, 1.16rem) !important;
  line-height: 1.72;
  max-width: 72ch;
}

body:not(.admin-portal) .home-hero .btn,
body:not(.admin-portal) .dashboard-welcome .btn,
body:not(.admin-portal) .ref-hero .btn {
  box-shadow: 0 12px 26px rgba(9, 30, 66, 0.2);
}

body:not(.admin-portal) .motivation-banner,
body:not(.admin-portal) .about-content,
body:not(.admin-portal) .daily-goals,
body:not(.admin-portal) .recent-activity,
body:not(.admin-portal) .motivation-widget {
  background: linear-gradient(168deg, rgba(255, 255, 255, 0.96), rgba(246, 250, 255, 0.92)) !important;
  border: 1px solid rgba(15, 27, 45, 0.1) !important;
}

body:not(.admin-portal) .features-grid .feature-card,
body:not(.admin-portal) .stats-grid .stat-card,
body:not(.admin-portal) .quick-stats .stat-card {
  background: linear-gradient(168deg, #ffffff 0%, #f6faff 100%) !important;
  border: 1px solid rgba(15, 27, 45, 0.11) !important;
}

body:not(.admin-portal) .features-grid .feature-card::after,
body:not(.admin-portal) .stats-grid .stat-card::after,
body:not(.admin-portal) .quick-stats .stat-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0));
  pointer-events: none;
}

body:not(.admin-portal) .stats-grid .stat-card,
body:not(.admin-portal) .features-grid .feature-card {
  transform: translateZ(0);
}

body:not(.admin-portal) .stats-grid .stat-card:hover,
body:not(.admin-portal) .features-grid .feature-card:hover {
  transform: translateY(-5px);
}

body:not(.admin-portal) .stat-card-value {
  font-size: clamp(2rem, 3.5vw, 2.7rem) !important;
  letter-spacing: -0.03em;
}

body:not(.admin-portal) .section-header h2,
body:not(.admin-portal) .about-section h2,
body:not(.admin-portal) .motivation-banner h3 {
  letter-spacing: -0.02em;
}

body:not(.admin-portal) .goal-item,
body:not(.admin-portal) .activity-item,
body:not(.admin-portal) .thread-item,
body:not(.admin-portal) .notif-item,
body:not(.admin-portal) .feedback-card,
body:not(.admin-portal) .ref-reward-row,
body:not(.admin-portal) .ref-how-step {
  backdrop-filter: blur(1px);
}

body:not(.admin-portal) .goal-item:hover,
body:not(.admin-portal) .activity-item:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(15, 27, 45, 0.09);
}

body:not(.admin-portal) .topbar,
body:not(.admin-portal) .sidebar {
  backdrop-filter: blur(14px);
}

body:not(.admin-portal) .topbar {
  border-bottom: 1px solid rgba(15, 27, 45, 0.11);
}

body:not(.admin-portal) .notif-item.unread,
body:not(.admin-portal) .thread-item,
body:not(.admin-portal) .feedback-card {
  overflow: hidden;
}

body:not(.admin-portal) .notif-item.unread::before,
body:not(.admin-portal) .feedback-card::before,
body:not(.admin-portal) .thread-item::before {
  height: 4px;
}

body:not(.admin-portal) .forum-toolbar,
body:not(.admin-portal) .notif-head,
body:not(.admin-portal) .lb-toolbar,
body:not(.admin-portal) .mock-toolbar,
body:not(.admin-portal) .quiz-toolbar-card {
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(15, 27, 45, 0.1);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(245, 250, 255, 0.9));
}

body:not(.admin-portal) .option-card {
  box-shadow: 0 2px 0 rgba(15, 27, 45, 0.04);
}

body:not(.admin-portal) .option-card.selected {
  border-color: rgba(15, 118, 110, 0.5);
  box-shadow: 0 10px 24px rgba(15, 118, 110, 0.18);
}

body:not(.admin-portal) .leaderboard-table tr.current-user {
  box-shadow: inset 4px 0 0 #0f766e;
}

body:not(.admin-portal) .ref-stat-card,
body:not(.admin-portal) .summary-card,
body:not(.admin-portal) .progress-item,
body:not(.admin-portal) .badge-card,
body:not(.admin-portal) .activity-box,
body:not(.admin-portal) .info-card {
  background: linear-gradient(170deg, #ffffff 0%, #f7fbff 100%);
}

html[data-theme-mode='dark'] body:not(.admin-portal) .home-hero,
html[data-theme-mode='dark'] body:not(.admin-portal) .dashboard-welcome,
html[data-theme-mode='dark'] body:not(.admin-portal) .ref-hero {
  background:
    radial-gradient(circle at 86% 12%, rgba(148, 197, 255, 0.2), transparent 34%),
    linear-gradient(140deg, #0d2742 0%, #12395f 48%, #1d3d77 100%) !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .forum-toolbar,
html[data-theme-mode='dark'] body:not(.admin-portal) .notif-head,
html[data-theme-mode='dark'] body:not(.admin-portal) .lb-toolbar,
html[data-theme-mode='dark'] body:not(.admin-portal) .mock-toolbar,
html[data-theme-mode='dark'] body:not(.admin-portal) .quiz-toolbar-card {
  background: linear-gradient(180deg, rgba(30, 41, 59, 0.85), rgba(20, 29, 45, 0.85));
  border-color: rgba(255, 255, 255, 0.12);
}

@media (max-width: 900px) {
  body:not(.admin-portal) .home-hero,
  body:not(.admin-portal) .dashboard-welcome,
  body:not(.admin-portal) .ref-hero {
    padding: 1.45rem !important;
    border-radius: 16px;
  }

  body:not(.admin-portal) .features-grid,
  body:not(.admin-portal) .stats-grid,
  body:not(.admin-portal) .quick-stats {
    gap: 0.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  body:not(.admin-portal) .card,
  body:not(.admin-portal) .panel,
  body:not(.admin-portal) .feature-card,
  body:not(.admin-portal) .stat-card,
  body:not(.admin-portal) .thread-item,
  body:not(.admin-portal) .feedback-card,
  body:not(.admin-portal) .notif-item,
  body:not(.admin-portal) .btn {
    animation: none !important;
    transition: none !important;
  }
}

/* ===== Full-Width SaaS Layout System ===== */
body:not(.admin-portal) .app-shell {
  grid-template-columns: clamp(232px, 16vw, 288px) minmax(0, 1fr) !important;
  width: 100%;
}

body:not(.admin-portal) .app-shell.sidebar-collapsed {
  grid-template-columns: 86px minmax(0, 1fr) !important;
}

body:not(.admin-portal) .main-area {
  min-width: 0;
  width: 100%;
}

body:not(.admin-portal) .topbar {
  width: 100%;
  padding: 16px clamp(16px, 2.2vw, 32px) !important;
}

body:not(.admin-portal) #pageTitle {
  font-size: clamp(1.06rem, 1.5vw, 1.34rem);
}

body:not(.admin-portal) .topbar .quick-icons {
  gap: clamp(8px, 1.2vw, 14px);
  flex-wrap: wrap;
  justify-content: flex-end;
}

body:not(.admin-portal) .content {
  width: 100% !important;
  max-width: none !important;
  margin: 0 !important;
  padding: clamp(14px, 2.1vw, 28px) clamp(14px, 2.4vw, 34px) clamp(22px, 3vw, 38px) !important;
  gap: clamp(14px, 1.7vw, 24px);
}

body:not(.admin-portal) .content > section,
body:not(.admin-portal) .content > article,
body:not(.admin-portal) .content > div {
  width: 100%;
}

body:not(.admin-portal) .hero,
body:not(.admin-portal) .home-hero,
body:not(.admin-portal) .dashboard-welcome,
body:not(.admin-portal) .quiz-hero,
body:not(.admin-portal) .membership-hero,
body:not(.admin-portal) .ref-hero,
body:not(.admin-portal) .roadmap-hero {
  width: 100%;
  padding: clamp(20px, 3.1vw, 44px) !important;
  border-radius: clamp(16px, 1.8vw, 24px);
}

body:not(.admin-portal) .hero p,
body:not(.admin-portal) .home-hero .subtitle,
body:not(.admin-portal) .dashboard-welcome p {
  max-width: min(95ch, 96%);
}

body:not(.admin-portal) .grid,
body:not(.admin-portal) .stats-grid,
body:not(.admin-portal) .quick-stats,
body:not(.admin-portal) .quiz-grid,
body:not(.admin-portal) .recommended-grid,
body:not(.admin-portal) .cert-grid,
body:not(.admin-portal) .notes-grid,
body:not(.admin-portal) .resource-list {
  width: 100%;
  gap: clamp(12px, 1.4vw, 22px) !important;
}

body:not(.admin-portal) .grid.cols-2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)) !important;
}

body:not(.admin-portal) .grid.cols-3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)) !important;
}

body:not(.admin-portal) .grid.cols-4 {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)) !important;
}

body:not(.admin-portal) .stats-grid,
body:not(.admin-portal) .quick-stats {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)) !important;
}

body:not(.admin-portal) .quiz-grid {
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)) !important;
}

body:not(.admin-portal) .recommended-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)) !important;
}

body:not(.admin-portal) .notes-grid,
body:not(.admin-portal) .cert-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)) !important;
}

body:not(.admin-portal) .profile-layout,
body:not(.admin-portal) .settings-layout,
body:not(.admin-portal) .notif-wrap,
body:not(.admin-portal) .forum-layout,
body:not(.admin-portal) .feedback-layout {
  width: 100%;
  gap: clamp(12px, 1.4vw, 20px) !important;
}

body:not(.admin-portal) .membership-hero-grid,
body:not(.admin-portal) .membership-summary-grid,
body:not(.admin-portal) .roadmap-input-grid,
body:not(.admin-portal) .roadmap-stats-grid,
body:not(.admin-portal) .quiz-toolbar-grid {
  gap: clamp(10px, 1.2vw, 16px) !important;
}

body:not(.admin-portal) .membership-hero-grid {
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.8fr);
}

body:not(.admin-portal) .quiz-toolbar-grid {
  grid-template-columns: minmax(280px, 2fr) repeat(3, minmax(170px, 1fr)) !important;
}

body:not(.admin-portal) .actions,
body:not(.admin-portal) .hero-actions,
body:not(.admin-portal) .quiz-actions,
body:not(.admin-portal) .cert-actions {
  gap: 10px;
  row-gap: 10px;
  flex-wrap: wrap;
}

body:not(.admin-portal) .card,
body:not(.admin-portal) .panel,
body:not(.admin-portal) .section-card,
body:not(.admin-portal) .quiz-card,
body:not(.admin-portal) .mock-card,
body:not(.admin-portal) .resource-card,
body:not(.admin-portal) .thread-item,
body:not(.admin-portal) .notif-item,
body:not(.admin-portal) .feedback-card,
body:not(.admin-portal) .roadmap-step,
body:not(.admin-portal) .membership-summary-card,
body:not(.admin-portal) .plan-comparison-card,
body:not(.admin-portal) .upi-payment-card,
body:not(.admin-portal) .qr-payment-card {
  width: 100%;
  border-radius: clamp(12px, 1.2vw, 18px) !important;
}

body:not(.admin-portal) .sidebar {
  padding: 14px 12px 12px !important;
}

body:not(.admin-portal) .sidebar-head {
  padding-bottom: 14px;
  margin-bottom: 10px;
}

body:not(.admin-portal) .logo {
  gap: 3px;
}

body:not(.admin-portal) .logo span {
  font-size: clamp(1rem, 1.05vw, 1.2rem);
}

body:not(.admin-portal) .nav-group-title {
  margin-bottom: 2px;
  letter-spacing: 0.11em;
}

body:not(.admin-portal) .nav-link {
  min-height: 42px;
  padding: 10px 11px;
}

body:not(.admin-portal) .icon-chip,
body:not(.admin-portal) .btn,
body:not(.admin-portal) .btn-mini {
  min-height: 38px;
}

@media (min-width: 1500px) {
  body:not(.admin-portal) .content {
    padding-left: clamp(18px, 2vw, 42px) !important;
    padding-right: clamp(18px, 2vw, 42px) !important;
  }

  body:not(.admin-portal) .quiz-grid {
    grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)) !important;
  }

  body:not(.admin-portal) .notes-grid,
  body:not(.admin-portal) .cert-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)) !important;
  }
}

@media (max-width: 1200px) {
  body:not(.admin-portal) .quiz-toolbar-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  body:not(.admin-portal) .membership-hero-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px) {
  body:not(.admin-portal) .app-shell {
    grid-template-columns: 1fr !important;
  }

  body:not(.admin-portal) .topbar {
    border-radius: 0;
    padding: 12px 12px !important;
    min-height: 64px;
    height: auto;
  }

  body:not(.admin-portal) .content {
    padding: 12px 12px 94px !important;
  }

  body:not(.admin-portal) .grid.cols-2,
  body:not(.admin-portal) .grid.cols-3,
  body:not(.admin-portal) .grid.cols-4,
  body:not(.admin-portal) .stats-grid,
  body:not(.admin-portal) .quick-stats,
  body:not(.admin-portal) .quiz-grid,
  body:not(.admin-portal) .recommended-grid,
  body:not(.admin-portal) .notes-grid,
  body:not(.admin-portal) .cert-grid,
  body:not(.admin-portal) .roadmap-input-grid,
  body:not(.admin-portal) .roadmap-stats-grid,
  body:not(.admin-portal) .quiz-toolbar-grid,
  body:not(.admin-portal) .membership-summary-grid {
    grid-template-columns: 1fr !important;
  }
}

/* ===== Dark Mode Hardening Fix ===== */
html[data-theme-mode='dark'] body:not(.admin-portal) {
  background:
    radial-gradient(circle at 12% -6%, rgba(20, 184, 166, 0.08), transparent 34%),
    radial-gradient(circle at 90% 0%, rgba(45, 212, 191, 0.06), transparent 36%),
    #0f172a !important;
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .main-area {
  background: linear-gradient(180deg, rgba(17, 24, 39, 0.54), rgba(17, 24, 39, 0.2));
}

html[data-theme-mode='dark'] body:not(.admin-portal) .content,
html[data-theme-mode='dark'] body:not(.admin-portal) .content > section,
html[data-theme-mode='dark'] body:not(.admin-portal) .content > article,
html[data-theme-mode='dark'] body:not(.admin-portal) .content > div {
  color: #f8fafc;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .card,
html[data-theme-mode='dark'] body:not(.admin-portal) .panel,
html[data-theme-mode='dark'] body:not(.admin-portal) .section-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .forum-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .notif-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .thread-item,
html[data-theme-mode='dark'] body:not(.admin-portal) .feedback-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .quiz-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .mock-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .resource-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .milestone-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .roadmap-step,
html[data-theme-mode='dark'] body:not(.admin-portal) .goal-item,
html[data-theme-mode='dark'] body:not(.admin-portal) .activity-item,
html[data-theme-mode='dark'] body:not(.admin-portal) .summary-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .progress-item,
html[data-theme-mode='dark'] body:not(.admin-portal) .badge-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .activity-box,
html[data-theme-mode='dark'] body:not(.admin-portal) .info-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .daily-goals,
html[data-theme-mode='dark'] body:not(.admin-portal) .recent-activity,
html[data-theme-mode='dark'] body:not(.admin-portal) .motivation-widget,
html[data-theme-mode='dark'] body:not(.admin-portal) .motivation-banner,
html[data-theme-mode='dark'] body:not(.admin-portal) .about-content,
html[data-theme-mode='dark'] body:not(.admin-portal) .about-feature-item,
html[data-theme-mode='dark'] body:not(.admin-portal) .feature-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .ref-stat-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .ref-reward-row,
html[data-theme-mode='dark'] body:not(.admin-portal) .ref-how-step,
html[data-theme-mode='dark'] body:not(.admin-portal) .membership-summary-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .plan-comparison-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .upi-payment-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .qr-payment-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .payment-guide-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .payment-tracker-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .roadmap-input-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .roadmap-stats-grid div,
html[data-theme-mode='dark'] body:not(.admin-portal) .quiz-stats-grid div,
html[data-theme-mode='dark'] body:not(.admin-portal) .kpi,
html[data-theme-mode='dark'] body:not(.admin-portal) .icon-tile,
html[data-theme-mode='dark'] body:not(.admin-portal) .empty-state,
html[data-theme-mode='dark'] body:not(.admin-portal) .empty,
html[data-theme-mode='dark'] body:not(.admin-portal) .sessions-list,
html[data-theme-mode='dark'] body:not(.admin-portal) .switch-row {
  background: #1e293b !important;
  color: #f8fafc !important;
  border-color: #334155 !important;
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.42) !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .card p,
html[data-theme-mode='dark'] body:not(.admin-portal) .panel p,
html[data-theme-mode='dark'] body:not(.admin-portal) .section-card p,
html[data-theme-mode='dark'] body:not(.admin-portal) .muted,
html[data-theme-mode='dark'] body:not(.admin-portal) .text-muted,
html[data-theme-mode='dark'] body:not(.admin-portal) .stat-card-label,
html[data-theme-mode='dark'] body:not(.admin-portal) .activity-time,
html[data-theme-mode='dark'] body:not(.admin-portal) .about-feature-item span,
html[data-theme-mode='dark'] body:not(.admin-portal) .quiz-meta-row span,
html[data-theme-mode='dark'] body:not(.admin-portal) .quiz-stats-grid label,
html[data-theme-mode='dark'] body:not(.admin-portal) .milestone-meta,
html[data-theme-mode='dark'] body:not(.admin-portal) .roadmap-input-label,
html[data-theme-mode='dark'] body:not(.admin-portal) .goal-text,
html[data-theme-mode='dark'] body:not(.admin-portal) .notif-time,
html[data-theme-mode='dark'] body:not(.admin-portal) .feedback-meta,
html[data-theme-mode='dark'] body:not(.admin-portal) .small,
html[data-theme-mode='dark'] body:not(.admin-portal) .tiny {
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) h1,
html[data-theme-mode='dark'] body:not(.admin-portal) h2,
html[data-theme-mode='dark'] body:not(.admin-portal) h3,
html[data-theme-mode='dark'] body:not(.admin-portal) h4,
html[data-theme-mode='dark'] body:not(.admin-portal) strong,
html[data-theme-mode='dark'] body:not(.admin-portal) .stat-card-value,
html[data-theme-mode='dark'] body:not(.admin-portal) .milestone-title,
html[data-theme-mode='dark'] body:not(.admin-portal) .activity-title,
html[data-theme-mode='dark'] body:not(.admin-portal) .section-header {
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .sidebar {
  background:
    radial-gradient(circle at 8% 0%, rgba(20, 184, 166, 0.13), transparent 44%),
    linear-gradient(180deg, #111827, #0f172a) !important;
  border-right-color: #334155 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .topbar {
  background: rgba(17, 24, 39, 0.86) !important;
  border-bottom-color: #334155 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .icon-chip {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .icon-chip i {
  color: #14b8a6 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .icon-chip:hover {
  border-color: #2dd4bf !important;
  color: #f8fafc !important;
  box-shadow: 0 12px 24px rgba(20, 184, 166, 0.18) !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .btn.secondary,
html[data-theme-mode='dark'] body:not(.admin-portal) .btn.outline {
  background: #243247 !important;
  border-color: #334155 !important;
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .btn.ghost,
html[data-theme-mode='dark'] body:not(.admin-portal) .btn-mini.warn,
html[data-theme-mode='dark'] body:not(.admin-portal) .btn-mini.secondary {
  background: transparent !important;
  color: #cbd5e1 !important;
  border-color: #334155 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .btn.warn,
html[data-theme-mode='dark'] body:not(.admin-portal) .btn.warning {
  background: #f59e0b !important;
  border-color: #f59e0b !important;
  color: #111827 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .badge,
html[data-theme-mode='dark'] body:not(.admin-portal) .pill,
html[data-theme-mode='dark'] body:not(.admin-portal) .small-pill,
html[data-theme-mode='dark'] body:not(.admin-portal) .tiny-pill,
html[data-theme-mode='dark'] body:not(.admin-portal) .chip,
html[data-theme-mode='dark'] body:not(.admin-portal) .tab,
html[data-theme-mode='dark'] body:not(.admin-portal) .filter-chip,
html[data-theme-mode='dark'] body:not(.admin-portal) .lb-chip,
html[data-theme-mode='dark'] body:not(.admin-portal) .difficulty-badge,
html[data-theme-mode='dark'] body:not(.admin-portal) .quiz-status-pill,
html[data-theme-mode='dark'] body:not(.admin-portal) .status,
html[data-theme-mode='dark'] body:not(.admin-portal) .ref-reward-status,
html[data-theme-mode='dark'] body:not(.admin-portal) .co-admin-status {
  background: #243247 !important;
  border-color: #334155 !important;
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .difficulty-badge.easy,
html[data-theme-mode='dark'] body:not(.admin-portal) .quiz-status-pill.completed,
html[data-theme-mode='dark'] body:not(.admin-portal) .status.approved,
html[data-theme-mode='dark'] body:not(.admin-portal) .status.active {
  background: rgba(34, 197, 94, 0.18) !important;
  border-color: rgba(34, 197, 94, 0.35) !important;
  color: #86efac !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .difficulty-badge.medium,
html[data-theme-mode='dark'] body:not(.admin-portal) .status.pending,
html[data-theme-mode='dark'] body:not(.admin-portal) .status-review {
  background: rgba(245, 158, 11, 0.18) !important;
  border-color: rgba(245, 158, 11, 0.35) !important;
  color: #fcd34d !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .difficulty-badge.hard,
html[data-theme-mode='dark'] body:not(.admin-portal) .status.rejected,
html[data-theme-mode='dark'] body:not(.admin-portal) .status.closed {
  background: rgba(239, 68, 68, 0.2) !important;
  border-color: rgba(239, 68, 68, 0.35) !important;
  color: #fca5a5 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) input,
html[data-theme-mode='dark'] body:not(.admin-portal) select,
html[data-theme-mode='dark'] body:not(.admin-portal) textarea,
html[data-theme-mode='dark'] body:not(.admin-portal) .forum-search,
html[data-theme-mode='dark'] body:not(.admin-portal) .lb-search,
html[data-theme-mode='dark'] body:not(.admin-portal) .mock-search {
  background: #111827 !important;
  border-color: #334155 !important;
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) input::placeholder,
html[data-theme-mode='dark'] body:not(.admin-portal) textarea::placeholder {
  color: #94a3b8 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) input:focus,
html[data-theme-mode='dark'] body:not(.admin-portal) select:focus,
html[data-theme-mode='dark'] body:not(.admin-portal) textarea:focus {
  border-color: #14b8a6 !important;
  box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.22) !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .table-wrap,
html[data-theme-mode='dark'] body:not(.admin-portal) .leaderboard-table-wrap,
html[data-theme-mode='dark'] body:not(.admin-portal) .co-admin-table-wrap,
html[data-theme-mode='dark'] body:not(.admin-portal) table,
html[data-theme-mode='dark'] body:not(.admin-portal) .leaderboard-table,
html[data-theme-mode='dark'] body:not(.admin-portal) .payment-history-table {
  background: #1e293b !important;
  border-color: #334155 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) th {
  background: #243247 !important;
  color: #cbd5e1 !important;
  border-bottom-color: #334155 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) td {
  color: #f8fafc !important;
  border-bottom-color: #334155 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) tr:hover td {
  background: rgba(148, 163, 184, 0.08) !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .progress {
  background: #243247 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .progress > span {
  background: linear-gradient(90deg, #14b8a6, #2dd4bf) !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .dropdown-menu,
html[data-theme-mode='dark'] body:not(.admin-portal) .quiz-modal-panel,
html[data-theme-mode='dark'] body:not(.admin-portal) .modal-content {
  background: #1e293b !important;
  border-color: #334155 !important;
}

/* Force-fix inline style leaks in student pages */
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='background: #fff'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='background:#fff'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='background: white'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='background:white'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='background: #f8f9fa'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='background:#f8f9fa'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='background: #e9ecef'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='background:#e9ecef'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='background: linear-gradient(135deg, #f8f9fa'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='background: linear-gradient(135deg, #f8f9fa 0%, #fff'] {
  background: #1e293b !important;
  border-color: #334155 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) [style*='color: #212529'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='color:#212529'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='color: #495057'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='color:#495057'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='color: #6c757d'],
html[data-theme-mode='dark'] body:not(.admin-portal) [style*='color:#6c757d'] {
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) #certificateCanvas {
  background: #1e293b !important;
  border-color: #334155 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) #personalNotesEditor,
html[data-theme-mode='dark'] body:not(.admin-portal) .ql-toolbar,
html[data-theme-mode='dark'] body:not(.admin-portal) .ql-container {
  background: #1e293b !important;
  color: #f8fafc !important;
  border-color: #334155 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .ql-editor {
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .ql-editor.ql-blank::before {
  color: #94a3b8 !important;
}

/* ===== Unified Design System Tokens ===== */
:root {
  --ds-bg: #f8fafc;
  --ds-surface: #ffffff;
  --ds-surface-soft: #f1f5f9;
  --ds-surface-elevated: #ffffff;
  --ds-border: #e2e8f0;
  --ds-brand: #0f766e;
  --ds-brand-hover: #0d9488;
  --ds-brand-soft: rgba(15, 118, 110, 0.12);
  --ds-text-primary: #0f172a;
  --ds-text-secondary: #475569;
  --ds-text-muted: #64748b;
  --ds-text-inverse: #f8fafc;
  --ds-success: #22c55e;
  --ds-warning: #f59e0b;
  --ds-danger: #ef4444;
  --ds-info: #38bdf8;
  --ds-chart-grid: rgba(15, 23, 42, 0.1);
  --ds-chart-axis: #475569;
  --ds-chart-series-1: #0f766e;
  --ds-chart-series-2: #0ea5e9;
  --ds-chart-series-3: #a855f7;
  --ds-chart-series-4: #f59e0b;

  --ds-font: 'Inter', system-ui, sans-serif;
  --ds-lh-tight: 1.25;
  --ds-lh-base: 1.5;

  --ds-space-1: 4px;
  --ds-space-2: 8px;
  --ds-space-3: 12px;
  --ds-space-4: 16px;
  --ds-space-5: 20px;
  --ds-space-6: 24px;
  --ds-space-8: 32px;
  --ds-space-10: 40px;

  --ds-radius-btn: 10px;
  --ds-radius-input: 10px;
  --ds-radius-card: 16px;
  --ds-shadow-card: 0 8px 24px rgba(15, 23, 42, 0.06);
  --ds-shadow-card-hover: 0 16px 34px rgba(15, 23, 42, 0.1);
  --ds-focus-ring: 0 0 0 4px rgba(15, 118, 110, 0.2);

  --bg: var(--ds-bg);
  --surface: var(--ds-surface);
  --surface-2: var(--ds-surface-soft);
  --text: var(--ds-text-primary);
  --muted: var(--ds-text-secondary);
  --primary: var(--ds-brand);
  --accent: var(--ds-warning);
  --ok: var(--ds-success);
  --warn: var(--ds-warning);
  --danger: var(--ds-danger);
  --ring: rgba(15, 118, 110, 0.22);
}

html[data-theme-mode='dark'] {
  --ds-bg: #0b1220;
  --ds-surface: #131f32;
  --ds-surface-soft: #1a2940;
  --ds-surface-elevated: #1e2f49;
  --ds-border: #2b3e59;
  --ds-brand: #2dd4bf;
  --ds-brand-hover: #5eead4;
  --ds-brand-soft: rgba(45, 212, 191, 0.2);
  --ds-text-primary: #eef4ff;
  --ds-text-secondary: #c7d3e5;
  --ds-text-muted: #93a7c2;
  --ds-text-inverse: #0b1220;
  --ds-success: #4ade80;
  --ds-warning: #fbbf24;
  --ds-danger: #fb7185;
  --ds-info: #67e8f9;
  --ds-chart-grid: rgba(148, 163, 184, 0.22);
  --ds-chart-axis: #c7d3e5;
  --ds-chart-series-1: #2dd4bf;
  --ds-chart-series-2: #60a5fa;
  --ds-chart-series-3: #c084fc;
  --ds-chart-series-4: #fbbf24;
  --ds-shadow-card: 0 14px 34px rgba(2, 8, 23, 0.5);
  --ds-shadow-card-hover: 0 20px 42px rgba(2, 8, 23, 0.62);
  --ds-focus-ring: 0 0 0 4px rgba(45, 212, 191, 0.27);

  --bg: var(--ds-bg);
  --surface: var(--ds-surface);
  --surface-2: var(--ds-surface-soft);
  --text: var(--ds-text-primary);
  --muted: var(--ds-text-secondary);
  --primary: var(--ds-brand);
}

body {
  font-family: var(--ds-font);
  font-size: 14px;
  line-height: var(--ds-lh-base);
  color: var(--ds-text-primary);
  transition: background-color 180ms ease, color 180ms ease;
}

h1,
h2,
h3,
h4,
#pageTitle,
.nav-link,
.btn {
  font-family: var(--ds-font);
}

h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: var(--ds-lh-tight);
}

h2 {
  font-size: 24px;
  font-weight: 600;
  line-height: var(--ds-lh-tight);
}

h3,
.card h3,
.panel h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
}

label,
.small-label,
.text-xs,
.muted {
  font-size: 12px;
  font-weight: 500;
  color: var(--ds-text-muted);
}

.content {
  gap: var(--ds-space-8) !important;
}

.content > section + section,
.content > article + article,
.content > div + section,
.content > div + article {
  margin-top: var(--ds-space-2);
}

.grid,
.stats-grid,
.quick-stats,
.quiz-grid,
.notes-grid,
.cert-grid,
.resource-list,
.goal-list,
.activity-list {
  gap: var(--ds-space-5) !important;
}

.grid.cols-2,
.stats-grid,
.quick-stats {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)) !important;
}

.grid.cols-3,
.quiz-grid,
.notes-grid,
.cert-grid {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)) !important;
}

.card,
.panel,
.section-card,
.quiz-card,
.mock-card,
.resource-card,
.roadmap-step,
.feedback-card,
.thread-item,
.notif-item,
.stat-card,
.summary-card,
.membership-summary-card,
.plan-comparison-card,
.upi-payment-card,
.qr-payment-card,
.daily-goals,
.recent-activity,
.motivation-widget {
  background: var(--ds-surface) !important;
  border: 1px solid var(--ds-border) !important;
  border-radius: var(--ds-radius-card) !important;
  padding: var(--ds-space-5);
  box-shadow: var(--ds-shadow-card) !important;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease, background-color 180ms ease;
}

html[data-theme-mode='dark'] .card,
html[data-theme-mode='dark'] .panel,
html[data-theme-mode='dark'] .section-card,
html[data-theme-mode='dark'] .quiz-card,
html[data-theme-mode='dark'] .mock-card,
html[data-theme-mode='dark'] .resource-card,
html[data-theme-mode='dark'] .thread-item,
html[data-theme-mode='dark'] .notif-item,
html[data-theme-mode='dark'] .stat-card {
  background: linear-gradient(180deg, rgba(30, 47, 73, 0.98), rgba(19, 31, 50, 0.98)) !important;
}

.card:hover,
.panel:hover,
.quiz-card:hover,
.mock-card:hover,
.resource-card:hover,
.thread-item:hover,
.feedback-card:hover,
.notif-item:hover,
.stat-card:hover {
  box-shadow: var(--ds-shadow-card-hover) !important;
}

.btn,
.btn-mini {
  border-radius: var(--ds-radius-btn) !important;
  padding: 10px 14px;
  min-height: 40px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: all 160ms ease;
}

.btn:focus-visible,
.btn-mini:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.icon-chip:focus-visible {
  outline: none;
  box-shadow: var(--ds-focus-ring);
}

.btn.primary,
.btn:not(.secondary):not(.ghost):not(.outline):not(.warn):not(.warning) {
  background: var(--ds-brand) !important;
  color: #ffffff !important;
  border-color: var(--ds-brand) !important;
}

.btn.primary:hover,
.btn:not(.secondary):not(.ghost):not(.outline):not(.warn):not(.warning):hover {
  background: var(--ds-brand-hover) !important;
  border-color: var(--ds-brand-hover) !important;
}

.btn.secondary,
.btn.outline {
  background: var(--ds-surface-soft) !important;
  border-color: var(--ds-border) !important;
  color: var(--ds-text-primary) !important;
}

.btn.secondary:hover,
.btn.outline:hover {
  background: color-mix(in srgb, var(--ds-surface-soft) 80%, var(--ds-brand) 20%) !important;
}

.btn.ghost,
.icon-chip.ghost {
  background: transparent !important;
  border-color: transparent !important;
  color: var(--ds-text-secondary) !important;
}

.btn.ghost:hover,
.icon-chip.ghost:hover {
  background: color-mix(in srgb, var(--ds-brand) 12%, transparent) !important;
  color: var(--ds-brand) !important;
}

.btn.warn,
.btn.warning {
  background: var(--ds-warning) !important;
  border-color: var(--ds-warning) !important;
  color: #111827 !important;
}

.btn.danger,
.btn.error {
  background: var(--ds-danger) !important;
  border-color: var(--ds-danger) !important;
  color: #ffffff !important;
}

input,
select,
textarea,
.forum-search,
.lb-search,
.mock-search,
.quiz-search-wrap input {
  border-radius: var(--ds-radius-input) !important;
  border: 1px solid var(--ds-border) !important;
  background: var(--ds-surface) !important;
  color: var(--ds-text-primary) !important;
  padding: 10px !important;
  min-height: 40px;
  transition: border-color 150ms ease, box-shadow 150ms ease, background-color 180ms ease, color 180ms ease;
}

input::placeholder,
textarea::placeholder {
  color: var(--ds-text-muted) !important;
}

input:focus,
select:focus,
textarea:focus,
.forum-search:focus,
.lb-search:focus,
.mock-search:focus {
  border-color: var(--ds-brand) !important;
  box-shadow: var(--ds-focus-ring) !important;
}

.sidebar {
  border-right: 1px solid var(--ds-border) !important;
  transition: background-color 200ms ease, border-color 200ms ease;
}

html[data-theme-mode='dark'] .sidebar {
  background: linear-gradient(180deg, #0c1628 0%, #0e1b2f 100%) !important;
  border-right-color: #253753 !important;
}

html[data-theme-mode='dark'] .topbar {
  background: linear-gradient(180deg, rgba(17, 28, 46, 0.95), rgba(11, 19, 32, 0.92)) !important;
  border-bottom-color: #2b3e59 !important;
}

.nav-group-title {
  color: var(--ds-text-muted) !important;
}

.nav-link {
  color: var(--ds-text-secondary) !important;
}

.nav-link:hover {
  background: color-mix(in srgb, var(--ds-brand) 10%, transparent) !important;
  color: var(--ds-text-primary) !important;
}

.nav-link.active {
  background: color-mix(in srgb, var(--ds-brand) 16%, transparent) !important;
  color: var(--ds-text-primary) !important;
  border-left-color: var(--ds-brand) !important;
}

.topbar {
  border-bottom: 1px solid var(--ds-border) !important;
  background: color-mix(in srgb, var(--ds-surface) 90%, transparent) !important;
}

.hero,
.home-hero,
.dashboard-welcome,
.quiz-hero,
.membership-hero,
.ref-hero,
.roadmap-hero {
  background:
    radial-gradient(circle at 86% 14%, rgba(255, 255, 255, 0.2), transparent 34%),
    linear-gradient(135deg, color-mix(in srgb, var(--ds-brand) 82%, #0f172a 18%) 0%, color-mix(in srgb, var(--ds-brand-hover) 70%, #2563eb 30%) 100%) !important;
  border: 1px solid color-mix(in srgb, var(--ds-border) 55%, #ffffff 45%) !important;
}

.badge,
.pill,
.small-pill,
.tiny-pill,
.difficulty-badge,
.quiz-status-pill,
.status,
.ref-reward-status {
  border-radius: 999px !important;
  border: 1px solid var(--ds-border);
  background: var(--ds-surface-soft);
  color: var(--ds-text-secondary);
}

.table-wrap,
.leaderboard-table-wrap {
  border: 1px solid var(--ds-border);
  border-radius: var(--ds-radius-card);
  background: var(--ds-surface);
}

html[data-theme-mode='dark'] .table-wrap,
html[data-theme-mode='dark'] .leaderboard-table-wrap,
html[data-theme-mode='dark'] .co-admin-table-wrap {
  background: linear-gradient(180deg, rgba(23, 38, 59, 0.96), rgba(18, 31, 50, 0.96)) !important;
}

table,
.leaderboard-table,
.payment-history-table {
  background: var(--ds-surface);
}

th {
  background: var(--ds-surface-soft) !important;
  color: var(--ds-text-secondary) !important;
  border-bottom-color: var(--ds-border) !important;
}

td {
  color: var(--ds-text-primary) !important;
  border-bottom-color: var(--ds-border) !important;
}

tr:hover td {
  background: color-mix(in srgb, var(--ds-surface-soft) 70%, transparent) !important;
}

.modal,
.quiz-modal {
  animation: fadeIn 180ms ease;
}

.modal-content,
.quiz-modal-panel {
  background: var(--ds-surface) !important;
  border: 1px solid var(--ds-border) !important;
  border-radius: var(--ds-radius-card) !important;
}

html[data-theme-mode='dark'] .modal-content,
html[data-theme-mode='dark'] .quiz-modal-panel,
html[data-theme-mode='dark'] .dropdown-menu {
  background: linear-gradient(180deg, rgba(28, 45, 69, 0.98), rgba(18, 31, 49, 0.98)) !important;
  border-color: #2f4361 !important;
  box-shadow: 0 18px 38px rgba(2, 8, 23, 0.58) !important;
}

html[data-theme-mode='dark'] .empty-state,
html[data-theme-mode='dark'] .empty,
html[data-theme-mode='dark'] .co-admin-empty {
  background: linear-gradient(180deg, rgba(24, 40, 62, 0.95), rgba(17, 29, 47, 0.95)) !important;
  color: var(--ds-text-secondary) !important;
  border-color: #2e4260 !important;
}

html[data-theme-mode='dark'] .badge,
html[data-theme-mode='dark'] .pill,
html[data-theme-mode='dark'] .small-pill,
html[data-theme-mode='dark'] .tiny-pill,
html[data-theme-mode='dark'] .status {
  background: rgba(45, 212, 191, 0.14) !important;
  border-color: rgba(45, 212, 191, 0.3) !important;
  color: #a7f3e9 !important;
}

html[data-theme-mode='dark'] .co-admin-status.warn,
html[data-theme-mode='dark'] .co-admin-status.warning {
  background: rgba(251, 191, 36, 0.2) !important;
  border-color: rgba(251, 191, 36, 0.34) !important;
  color: #fde68a !important;
}

html[data-theme-mode='dark'] .co-admin-status.danger,
html[data-theme-mode='dark'] .co-admin-status.error {
  background: rgba(251, 113, 133, 0.2) !important;
  border-color: rgba(251, 113, 133, 0.34) !important;
  color: #fecdd3 !important;
}

html[data-theme-mode='dark'] canvas {
  filter: saturate(1.06) contrast(1.04);
}

.alert,
.empty-state,
.empty {
  border-radius: var(--ds-radius-card);
  border-color: var(--ds-border) !important;
  background: var(--ds-surface) !important;
}

.alert.success {
  border-left-color: var(--ds-success);
}

.alert.warning {
  border-left-color: var(--ds-warning);
}

.alert.danger {
  border-left-color: var(--ds-danger);
}

.app-shell,
.sidebar,
.main-area,
.topbar,
.content,
.card,
.panel,
.section-card,
.btn,
.icon-chip,
input,
select,
textarea,
.nav-link,
.hero {
  transition-property: background-color, color, border-color, box-shadow, transform;
  transition-duration: 180ms;
  transition-timing-function: ease;
}

@media (max-width: 980px) {
  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 22px;
  }

  .content {
    gap: var(--ds-space-6) !important;
  }

  .grid.cols-2,
  .grid.cols-3,
  .quiz-grid,
  .stats-grid,
  .quick-stats,
  .notes-grid,
  .cert-grid {
    grid-template-columns: 1fr !important;
  }

  .live-hub-panel {
    top: auto;
    bottom: 16px;
    right: 12px;
    left: 12px;
    width: auto;
    max-height: calc(100vh - 24px);
  }

  .live-hub-stage-grid {
    grid-template-columns: 1fr;
  }

  .live-hub-toast-host {
    top: auto;
    bottom: 16px;
    right: 12px;
    left: 12px;
    width: auto;
  }

  .live-hub-host-meta {
    grid-template-columns: 1fr;
  }

  .live-hub-video-card,
  .live-hub-chat-card {
    min-height: 420px;
  }

  .live-hub-chat-card {
    position: relative;
  }

  .live-hub-chat-form {
    position: sticky;
    bottom: 0;
    padding-bottom: calc(8px + env(safe-area-inset-bottom));
  }

  .live-hub-waiting-grid {
    grid-template-columns: 1fr;
  }

  .live-hub-waiting-actions {
    position: sticky;
    bottom: 0;
    padding-top: 6px;
    background: linear-gradient(180deg, rgba(255,255,255,0), #fff 40%);
  }

  .live-hub-video-mount,
  .live-hub-video-mount > *,
  .live-hub-iframe {
    min-height: 360px;
  }
}

/* ===== Admin + Global Theme Consistency ===== */
html[data-theme-mode='dark'] body.admin-portal {
  background:
    radial-gradient(circle at 8% -4%, rgba(20, 184, 166, 0.1), transparent 34%),
    radial-gradient(circle at 90% 0%, rgba(45, 212, 191, 0.08), transparent 36%),
    #0f172a !important;
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body.admin-portal .co-admin-main,
html[data-theme-mode='dark'] body.admin-portal .co-admin-topbar,
html[data-theme-mode='dark'] body.admin-portal .co-admin-hero,
html[data-theme-mode='dark'] body.admin-portal .co-admin-subhero,
html[data-theme-mode='dark'] body.admin-portal .co-admin-panel,
html[data-theme-mode='dark'] body.admin-portal .co-admin-module-card,
html[data-theme-mode='dark'] body.admin-portal .co-admin-utility-card,
html[data-theme-mode='dark'] body.admin-portal .co-admin-stat,
html[data-theme-mode='dark'] body.admin-portal .co-admin-list-item,
html[data-theme-mode='dark'] body.admin-portal .co-admin-table-wrap,
html[data-theme-mode='dark'] body.admin-portal .co-admin-empty,
html[data-theme-mode='dark'] body.admin-portal .co-admin-health-tile,
html[data-theme-mode='dark'] body.admin-portal .co-admin-nav a,
html[data-theme-mode='dark'] body.admin-portal .co-admin-chip,
html[data-theme-mode='dark'] body.admin-portal .card,
html[data-theme-mode='dark'] body.admin-portal .panel,
html[data-theme-mode='dark'] body.admin-portal .toolbar {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #f8fafc !important;
  box-shadow: 0 10px 28px rgba(2, 6, 23, 0.42) !important;
}

html[data-theme-mode='dark'] body.admin-portal .co-admin-aside {
  background: linear-gradient(180deg, #111827 0%, #0f172a 100%) !important;
  border-right-color: #334155 !important;
}

html[data-theme-mode='dark'] body.admin-portal .co-admin-main h1,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main h2,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main h3,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main h4,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main strong,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main p,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main label,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main span,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main td,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main th {
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body.admin-portal .co-admin-main .muted,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main .small,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main .k,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main .meta,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main .label,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main .hint,
html[data-theme-mode='dark'] body.admin-portal .co-admin-main .sub {
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body.admin-portal input,
html[data-theme-mode='dark'] body.admin-portal select,
html[data-theme-mode='dark'] body.admin-portal textarea,
html[data-theme-mode='dark'] body.admin-portal .co-admin-search,
html[data-theme-mode='dark'] body.admin-portal .co-admin-chip,
html[data-theme-mode='dark'] body.admin-portal .co-admin-input {
  background: #111827 !important;
  border-color: #334155 !important;
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body.admin-portal input::placeholder,
html[data-theme-mode='dark'] body.admin-portal textarea::placeholder {
  color: #94a3b8 !important;
}

html[data-theme-mode='dark'] body.admin-portal input:focus,
html[data-theme-mode='dark'] body.admin-portal select:focus,
html[data-theme-mode='dark'] body.admin-portal textarea:focus {
  border-color: #14b8a6 !important;
  box-shadow: 0 0 0 4px rgba(20, 184, 166, 0.22) !important;
}

html[data-theme-mode='dark'] body.admin-portal table,
html[data-theme-mode='dark'] body.admin-portal .table-wrap,
html[data-theme-mode='dark'] body.admin-portal .co-admin-table-wrap {
  background: #1e293b !important;
  border-color: #334155 !important;
}

html[data-theme-mode='dark'] body.admin-portal th {
  background: #243247 !important;
  border-bottom-color: #334155 !important;
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body.admin-portal td {
  border-bottom-color: #334155 !important;
  color: #f8fafc !important;
}

/* Catch inline light colors globally (student + admin) */
html[data-theme-mode='dark'] body [style*='background: #fff'],
html[data-theme-mode='dark'] body [style*='background:#fff'],
html[data-theme-mode='dark'] body [style*='background: white'],
html[data-theme-mode='dark'] body [style*='background:white'],
html[data-theme-mode='dark'] body [style*='background: #f8f9fa'],
html[data-theme-mode='dark'] body [style*='background:#f8f9fa'],
html[data-theme-mode='dark'] body [style*='background: #e9ecef'],
html[data-theme-mode='dark'] body [style*='background:#e9ecef'] {
  background: #1e293b !important;
  border-color: #334155 !important;
}

html[data-theme-mode='dark'] body [style*='color: #212529'],
html[data-theme-mode='dark'] body [style*='color:#212529'],
html[data-theme-mode='dark'] body [style*='color: #495057'],
html[data-theme-mode='dark'] body [style*='color:#495057'],
html[data-theme-mode='dark'] body [style*='color: #6c757d'],
html[data-theme-mode='dark'] body [style*='color:#6c757d'] {
  color: #cbd5e1 !important;
}

/* Mock Tests dark-mode consistency */
html[data-theme-mode='dark'] body:not(.admin-portal) .mock-toolbar,
html[data-theme-mode='dark'] body:not(.admin-portal) .mock-search,
html[data-theme-mode='dark'] body:not(.admin-portal) .filter-chip,
html[data-theme-mode='dark'] body:not(.admin-portal) .mock-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .meta-chip,
html[data-theme-mode='dark'] body:not(.admin-portal) .performance,
html[data-theme-mode='dark'] body:not(.admin-portal) .perf-cell,
html[data-theme-mode='dark'] body:not(.admin-portal) .mock-cards .empty-state {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .mock-search {
  background: #111827 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .mock-search input {
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .mock-search input::placeholder {
  color: #94a3b8 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .filter-chip {
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .filter-chip.active {
  background: #14b8a6 !important;
  border-color: #14b8a6 !important;
  color: #06201d !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .mock-card-title,
html[data-theme-mode='dark'] body:not(.admin-portal) .performance h4,
html[data-theme-mode='dark'] body:not(.admin-portal) .meta-chip strong,
html[data-theme-mode='dark'] body:not(.admin-portal) .perf-cell strong {
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .meta-chip label,
html[data-theme-mode='dark'] body:not(.admin-portal) .perf-cell label,
html[data-theme-mode='dark'] body:not(.admin-portal) .mock-cards .muted {
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .status-pill.not-attempted {
  background: #243247 !important;
  border-color: #334155 !important;
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .status-pill.attempted {
  background: rgba(245, 158, 11, 0.18) !important;
  border-color: rgba(245, 158, 11, 0.35) !important;
  color: #fcd34d !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .status-pill.completed {
  background: rgba(34, 197, 94, 0.18) !important;
  border-color: rgba(34, 197, 94, 0.35) !important;
  color: #86efac !important;
}

/* Certificates dark-mode fixes */
html[data-theme-mode='dark'] body:not(.admin-portal) .search-wrap,
html[data-theme-mode='dark'] body:not(.admin-portal) .verify-panel,
html[data-theme-mode='dark'] body:not(.admin-portal) .recent-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .empty-state-modern,
html[data-theme-mode='dark'] body:not(.admin-portal) .cert-meta .box,
html[data-theme-mode='dark'] body:not(.admin-portal) .preview-meta .box,
html[data-theme-mode='dark'] body:not(.admin-portal) .cert-preview,
html[data-theme-mode='dark'] body:not(.admin-portal) .cert-preview.classic,
html[data-theme-mode='dark'] body:not(.admin-portal) .cert-preview.modern,
html[data-theme-mode='dark'] body:not(.admin-portal) .cert-preview.premium,
html[data-theme-mode='dark'] body:not(.admin-portal) .cert-preview.college,
html[data-theme-mode='dark'] body:not(.admin-portal) .thumb,
html[data-theme-mode='dark'] body:not(.admin-portal) .history-table {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .search-wrap input,
html[data-theme-mode='dark'] body:not(.admin-portal) #verifyIdField,
html[data-theme-mode='dark'] body:not(.admin-portal) .history-table th,
html[data-theme-mode='dark'] body:not(.admin-portal) .history-table td {
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .preview-title,
html[data-theme-mode='dark'] body:not(.admin-portal) .recipient,
html[data-theme-mode='dark'] body:not(.admin-portal) .sign-box,
html[data-theme-mode='dark'] body:not(.admin-portal) .cert-meta .box,
html[data-theme-mode='dark'] body:not(.admin-portal) .preview-meta .box {
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) #certificateCanvas,
html[data-theme-mode='dark'] body:not(.admin-portal) #certQr,
html[data-theme-mode='dark'] body:not(.admin-portal) #certQrInline {
  background: #1e293b !important;
  border-color: #334155 !important;
}

/* Leaderboards dark-mode fixes */
html[data-theme-mode='dark'] body:not(.admin-portal) .lb-search,
html[data-theme-mode='dark'] body:not(.admin-portal) .lb-chip,
html[data-theme-mode='dark'] body:not(.admin-portal) .podium-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .podium-card.first,
html[data-theme-mode='dark'] body:not(.admin-portal) .podium-card.second,
html[data-theme-mode='dark'] body:not(.admin-portal) .podium-card.third,
html[data-theme-mode='dark'] body:not(.admin-portal) .leaderboard-table-wrap,
html[data-theme-mode='dark'] body:not(.admin-portal) .small-pill {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .lb-search input,
html[data-theme-mode='dark'] body:not(.admin-portal) .leaderboard-table td,
html[data-theme-mode='dark'] body:not(.admin-portal) .leaderboard-table th {
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .leaderboard-table tbody tr:hover {
  background: rgba(148, 163, 184, 0.08) !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .leaderboard-table tr.current-user {
  background: rgba(20, 184, 166, 0.12) !important;
  box-shadow: inset 4px 0 0 #14b8a6 !important;
}

/* Profile dark-mode fixes */
html[data-theme-mode='dark'] body:not(.admin-portal) .summary-chip,
html[data-theme-mode='dark'] body:not(.admin-portal) .progress-item,
html[data-theme-mode='dark'] body:not(.admin-portal) .badge-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .activity-box,
html[data-theme-mode='dark'] body:not(.admin-portal) .info-card {
  background: #1e293b !important;
  border-color: #334155 !important;
  color: #f8fafc !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .summary-chip label,
html[data-theme-mode='dark'] body:not(.admin-portal) .summary-main .muted,
html[data-theme-mode='dark'] body:not(.admin-portal) .activity-list,
html[data-theme-mode='dark'] body:not(.admin-portal) .progress-item label {
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .summary-chip strong,
html[data-theme-mode='dark'] body:not(.admin-portal) .info-card .value,
html[data-theme-mode='dark'] body:not(.admin-portal) .summary-main h2 {
  color: #f8fafc !important;
}

/* Fix: stat/feature card sheen overlay was covering content */
body:not(.admin-portal) .features-grid .feature-card,
body:not(.admin-portal) .stats-grid .stat-card,
body:not(.admin-portal) .quick-stats .stat-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

body:not(.admin-portal) .features-grid .feature-card > *,
body:not(.admin-portal) .stats-grid .stat-card > *,
body:not(.admin-portal) .quick-stats .stat-card > * {
  position: relative;
  z-index: 1;
}

body:not(.admin-portal) .features-grid .feature-card::after,
body:not(.admin-portal) .stats-grid .stat-card::after,
body:not(.admin-portal) .quick-stats .stat-card::after {
  z-index: 0;
  opacity: 0.22;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .features-grid .feature-card::after,
html[data-theme-mode='dark'] body:not(.admin-portal) .stats-grid .stat-card::after,
html[data-theme-mode='dark'] body:not(.admin-portal) .quick-stats .stat-card::after {
  opacity: 0.06;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .stats-grid .stat-card,
html[data-theme-mode='dark'] body:not(.admin-portal) .quick-stats .stat-card {
  background: #1e293b !important;
  border-color: #334155 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .stat-card-header h3,
html[data-theme-mode='dark'] body:not(.admin-portal) .stat-card-label {
  color: #cbd5e1 !important;
}

html[data-theme-mode='dark'] body:not(.admin-portal) .stat-card-value {
  color: #f8fafc !important;
}

/* Perceived performance: shell-level loading and shimmer */
body.app-loading {
  cursor: progress;
}

.content.content-loading {
  position: relative;
}

.content.content-loading > * {
  opacity: 0.64;
  pointer-events: none;
}

.content.content-loading::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  background: linear-gradient(105deg, rgba(148, 163, 184, 0.08) 24%, rgba(248, 250, 252, 0.52) 40%, rgba(148, 163, 184, 0.08) 56%);
  background-size: 200% 100%;
  animation: co-shimmer 1.15s linear infinite;
  pointer-events: none;
}

@keyframes co-shimmer {
  0% { background-position: 100% 0; }
  100% { background-position: -100% 0; }
}

/* Inline form feedback */
.field-inline-error {
  margin: 2px 0 0;
  font-size: 12px;
  line-height: 1.35;
  color: #b91c1c;
  min-height: 16px;
}

.field.field-invalid input,
.field.field-invalid select,
.field.field-invalid textarea,
.field.field-invalid .university-search {
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.14) !important;
}

.field.field-valid input,
.field.field-valid select,
.field.field-valid textarea,
.field.field-valid .university-search {
  border-color: #16a34a !important;
}

html[data-theme-mode='dark'] .field-inline-error {
  color: #fca5a5;
}

/* Mobile stability guardrails (frontend-wide): keep controls and topbar from overflowing narrow screens. */
@media (max-width: 640px) {
  body {
    overflow-x: hidden;
  }

  .topbar {
    height: auto;
    gap: 10px;
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .topbar .quick-icons {
    width: 100%;
    margin-left: 0;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
  }

  input,
  select,
  textarea,
  button {
    max-width: 100%;
  }

  [style*='min-width'] {
    min-width: 0 !important;
  }
}