:root {
  --bg1: #0f1f3a;
  --bg2: #183d72;
  --card: rgba(9, 17, 34, 0.9);
  --line: rgba(255, 255, 255, 0.18);
  --text: #f7fbff;
  --muted: #cfdefe;
  --ok: #39d98a;
  --bad: #ff6b6b;
}

/* Final contrast repair overrides */

:root {
  --contrast-ink: #172433;
  --contrast-ink-2: #31475b;
  --contrast-muted: #536474;
  --contrast-muted-soft: #677788;
  --contrast-paper: #fffdf8;
  --contrast-paper-soft: rgba(255, 247, 235, 0.78);
  --contrast-border: rgba(23, 36, 51, 0.14);
  --contrast-border-strong: rgba(23, 36, 51, 0.2);
}

body.landing-body,
body.policy-body {
  color: var(--contrast-ink) !important;
}

body.app-body,
body.admin-body {
  color: var(--contrast-paper) !important;
}

body.landing-body .card,
body.landing-body .hero-study-card,
body.landing-body .hero-metric-card,
body.landing-body .landing-feature-card,
body.landing-body .subject-card,
body.landing-body .trust-card,
body.landing-body .compare-card,
body.landing-body .landing-flow-step,
body.app-body .card,
body.app-body .chapter-launch-panel,
body.app-body .study-track-card,
body.app-body .chapter-launch-card,
body.app-body .workspace-hero-stat,
body.app-body .practice-assist-card,
body.app-body .review-block,
body.app-body .review-scorecard,
body.app-body .review-callout,
body.app-body .model-answer,
body.app-body .detail-explanation,
body.app-body .study-section-card,
body.app-body .study-item-card,
body.app-body .session-review-card,
body.admin-body .card,
body.admin-body .admin-entry,
body.admin-body .admin-panel-block,
body.policy-body .policy-card {
  --text: var(--contrast-ink) !important;
  --muted: var(--contrast-muted) !important;
  color: var(--contrast-ink) !important;
  background: linear-gradient(180deg, rgba(255, 253, 248, 0.97), rgba(246, 239, 229, 0.94)) !important;
  border-color: var(--contrast-border) !important;
}

body.app-body .site-nav,
body.admin-body .site-nav,
body.app-body .auth-session,
body.admin-body .admin-image-modal,
body.app-body .code,
body.admin-body .admin-answer-text {
  --text: var(--contrast-paper) !important;
  --muted: var(--contrast-paper-soft) !important;
  color: var(--contrast-paper) !important;
}

body.app-body .site-nav,
body.admin-body .site-nav {
  background: linear-gradient(180deg, rgba(15, 24, 34, 0.97), rgba(18, 29, 41, 0.92)) !important;
  border-color: rgba(255, 245, 232, 0.14) !important;
}

body.app-body .code,
body.admin-body .admin-answer-text,
body.admin-body .admin-image-modal {
  background: rgba(17, 26, 37, 0.96) !important;
  border-color: rgba(255, 245, 232, 0.12) !important;
}

body.app-body .lead,
body.app-body .mini,
body.app-body .section-copy,
body.app-body .chapter-status,
body.app-body .chapter-launch-summary,
body.app-body .chapter-launch-lead,
body.app-body .chapter-study-rail-summary,
body.app-body .chapter-study-rail-status,
body.app-body .study-section-lead,
body.app-body .study-empty,
body.app-body .review-line,
body.app-body .review-score-copy,
body.app-body .study-item-copy,
body.app-body .study-item-subcopy,
body.admin-body .lead,
body.admin-body .mini,
body.admin-body .admin-copy,
body.admin-body .admin-summary,
body.policy-body .lead,
body.policy-body .mini,
body.policy-body .policy-intro,
body.policy-body .policy-section p,
body.policy-body .policy-list,
body.landing-body .lead,
body.landing-body .mini,
body.landing-body .section-copy,
body.landing-body .landing-feature-card p,
body.landing-body .subject-card p,
body.landing-body .trust-card p,
body.landing-body .compare-list,
body.landing-body .landing-flow-step p {
  color: var(--muted) !important;
}

body.app-body h1,
body.app-body h2,
body.app-body h3,
body.app-body h4,
body.admin-body h1,
body.admin-body h2,
body.admin-body h3,
body.admin-body h4,
body.policy-body h1,
body.policy-body h2,
body.policy-body h3,
body.policy-body h4,
body.landing-body h1,
body.landing-body h2,
body.landing-body h3,
body.landing-body h4 {
  color: var(--text) !important;
}

.site-nav .badge,
.site-nav-title,
.site-nav-subtitle,
.site-nav-link,
.auth-status,
.auth-session-label,
.auth-session-name,
.auth-session-email {
  color: var(--text) !important;
}

.btn-primary {
  color: var(--contrast-paper) !important;
}

.btn-secondary,
.btn-hint,
.btn-danger,
.chapter-track-tab,
.option-btn,
.order-item,
.match-row,
.practice-assist-meta,
.study-callout,
.study-formula,
.policy-link,
.auth-pill,
.study-pill,
.trust-pill,
.session-band-pill,
.session-question-row {
  color: var(--contrast-ink) !important;
  border-color: var(--contrast-border-strong) !important;
}

.btn-secondary,
.chapter-track-tab,
.policy-link {
  background: rgba(255, 255, 255, 0.92) !important;
}

.btn-hint {
  background: rgba(203, 225, 219, 0.72) !important;
}

.btn-danger {
  background: rgba(248, 221, 225, 0.84) !important;
}

body.app-body .site-nav .btn-secondary,
body.admin-body .site-nav .btn-secondary {
  color: var(--contrast-paper) !important;
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 245, 232, 0.16) !important;
}

input,
select,
textarea,
.challenge-input,
.answer-input,
.answer-editor {
  color: var(--contrast-ink) !important;
  background: rgba(255, 255, 255, 0.94) !important;
  border-color: var(--contrast-border-strong) !important;
}

.option-btn.is-selected {
  color: var(--contrast-ink) !important;
  background: rgba(203, 225, 219, 0.78) !important;
  border-color: rgba(41, 93, 98, 0.28) !important;
}

.review-table th,
.review-table td,
.admin-table th,
.admin-table td {
  color: var(--contrast-ink) !important;
}

.model-answer-text mark,
.review-table mark {
  color: var(--contrast-ink) !important;
  background: rgba(201, 119, 63, 0.22) !important;
}

.landing-footer,
.landing-footer a {
  color: var(--contrast-ink) !important;
}

/* Terminal final theme and header override */

body.landing-body {
  background:
    radial-gradient(circle at 10% 10%, rgba(201, 119, 63, 0.14), transparent 26%),
    radial-gradient(circle at 88% 14%, rgba(41, 93, 98, 0.12), transparent 24%),
    linear-gradient(180deg, #f6efe4 0%, #ede3d4 100%) !important;
}

body.app-body,
body.admin-body {
  background:
    radial-gradient(circle at 12% 12%, rgba(201, 119, 63, 0.12), transparent 22%),
    radial-gradient(circle at 86% 10%, rgba(107, 157, 166, 0.12), transparent 18%),
    linear-gradient(180deg, #182534 0%, #13202d 46%, #101a26 100%) !important;
}

.landing-topbar {
  position: sticky;
  top: 16px;
  z-index: 32;
  padding: 0.85rem 1rem !important;
  border: 1px solid rgba(23, 36, 51, 0.12) !important;
  border-radius: 24px !important;
  background: rgba(255, 252, 247, 0.9) !important;
  box-shadow: 0 22px 54px rgba(20, 32, 45, 0.08) !important;
  backdrop-filter: blur(18px);
}

.landing-topbar .brand-mark {
  width: 42px !important;
  height: 42px !important;
  border-radius: 14px !important;
}

.landing-topbar .badge,
.landing-topbar .brand-title,
.landing-topbar .btn-secondary {
  color: #172433 !important;
}

.landing-topbar .btn-secondary {
  background: rgba(255, 255, 255, 0.78) !important;
}

.site-nav {
  grid-template-columns: minmax(0, 1fr) auto !important;
  grid-template-areas:
    "brand actions"
    "nav nav" !important;
  gap: 0.9rem 1rem !important;
  align-items: center !important;
  padding: 1rem 1.1rem !important;
  border-radius: 26px !important;
  background:
    linear-gradient(180deg, rgba(14, 23, 34, 0.96), rgba(20, 31, 44, 0.92)) !important;
  border-color: rgba(255, 245, 232, 0.14) !important;
  box-shadow: 0 26px 72px rgba(8, 14, 21, 0.28) !important;
}

.site-nav-primary {
  grid-area: brand !important;
  display: flex !important;
  align-items: center !important;
  gap: 1rem !important;
  min-width: 0;
}

.site-nav-brand {
  gap: 0.75rem !important;
  flex: 0 0 auto;
}

.site-nav .brand-mark {
  width: 42px !important;
  height: 42px !important;
  border-radius: 14px !important;
}

.site-nav-brand-copy {
  gap: 0.15rem !important;
}

.site-nav-title {
  font-size: 1.02rem !important;
  color: #fff8ef !important;
}

.site-nav-subtitle {
  margin: 0 !important;
  max-width: 34ch !important;
  font-size: 0.82rem !important;
  line-height: 1.45 !important;
  color: rgba(255, 244, 229, 0.72) !important;
}

.site-nav-links {
  grid-area: nav !important;
  justify-content: flex-start !important;
  gap: 0.55rem !important;
  padding-top: 0.05rem !important;
}

.site-nav-actions {
  grid-area: actions !important;
  justify-content: flex-end !important;
  align-self: start !important;
  gap: 0.6rem !important;
}

.site-nav-link {
  min-height: 40px !important;
  padding: 0.65rem 0.9rem !important;
  color: rgba(255, 244, 229, 0.78) !important;
}

.site-nav-link:hover,
.site-nav-link:focus-visible,
.site-nav-link.is-active {
  background: rgba(255, 255, 255, 0.1) !important;
  border-color: rgba(255, 255, 255, 0.14) !important;
  color: #fffdf8 !important;
}

.site-nav-actions .btn,
.landing-topbar-actions .btn {
  min-height: 42px !important;
  padding: 0.68rem 0.95rem !important;
}

.auth-session {
  padding: 0.38rem 0.45rem 0.38rem 0.38rem !important;
  border-radius: 18px !important;
  background: rgba(255, 255, 255, 0.06) !important;
  border-color: rgba(255, 245, 232, 0.14) !important;
}

.profile-avatar {
  width: 38px !important;
  height: 38px !important;
  border-radius: 12px !important;
}

.auth-status {
  max-width: 18ch;
  text-align: right;
  color: rgba(255, 244, 229, 0.66) !important;
}

.site-nav .btn-secondary {
  background: rgba(255, 255, 255, 0.07) !important;
  color: #fff8ef !important;
}

@media (max-width: 980px) {
  .site-nav {
    grid-template-columns: 1fr !important;
    grid-template-areas:
      "brand"
      "actions"
      "nav" !important;
  }

  .site-nav-primary {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 0.55rem !important;
  }

  .site-nav-subtitle,
  .auth-status {
    max-width: none !important;
    text-align: left !important;
  }

  .site-nav-actions {
    justify-content: flex-start !important;
    align-self: stretch !important;
  }
}

@media (max-width: 760px) {
  .landing-topbar {
    position: static !important;
  }

  .landing-topbar,
  .site-nav {
    border-radius: 22px !important;
  }
}

/* Final platform polish and header reset */

body.landing-body {
  background:
    radial-gradient(circle at 10% 10%, rgba(201, 119, 63, 0.14), transparent 26%),
    radial-gradient(circle at 88% 14%, rgba(41, 93, 98, 0.12), transparent 24%),
    linear-gradient(180deg, #f6efe4 0%, #ede3d4 100%) !important;
}

body.app-body,
body.admin-body {
  background:
    radial-gradient(circle at 12% 12%, rgba(201, 119, 63, 0.12), transparent 22%),
    radial-gradient(circle at 86% 10%, rgba(107, 157, 166, 0.12), transparent 18%),
    linear-gradient(180deg, #182534 0%, #13202d 46%, #101a26 100%) !important;
}

body.app-body .card,
body.app-body .chapter-launch-panel,
body.app-body .study-track-card,
body.app-body .chapter-launch-card,
body.app-body .workspace-hero-stat,
body.app-body .practice-assist-card,
body.app-body .review-block,
body.app-body .review-scorecard,
body.app-body .review-callout,
body.app-body .model-answer,
body.app-body .detail-explanation,
body.app-body .study-section-card,
body.app-body .study-item-card,
body.app-body .session-review-card,
body.admin-body .card,
body.admin-body .admin-entry,
body.admin-body .admin-panel-block,
body.landing-body .card,
body.landing-body .hero-study-card,
body.landing-body .hero-metric-card,
body.landing-body .landing-feature-card,
body.landing-body .subject-card,
body.landing-body .trust-card,
body.landing-body .compare-card,
body.landing-body .landing-flow-step,
body.policy-body .policy-card {
  background:
    linear-gradient(180deg, rgba(255, 252, 247, 0.985), rgba(244, 236, 226, 0.96)) !important;
  border-color: rgba(23, 36, 51, 0.16) !important;
  color: #182534 !important;
}

body.app-body .card *,
body.app-body .chapter-launch-panel *,
body.app-body .study-track-card *,
body.app-body .chapter-launch-card *,
body.app-body .workspace-hero-stat *,
body.app-body .practice-assist-card *,
body.app-body .review-block *,
body.app-body .review-scorecard *,
body.app-body .review-callout *,
body.app-body .model-answer *,
body.app-body .detail-explanation *,
body.app-body .study-section-card *,
body.app-body .study-item-card *,
body.app-body .session-review-card *,
body.admin-body .card *,
body.admin-body .admin-entry *,
body.admin-body .admin-panel-block *,
body.landing-body .card *,
body.landing-body .hero-study-card *,
body.landing-body .hero-metric-card *,
body.landing-body .landing-feature-card *,
body.landing-body .subject-card *,
body.landing-body .trust-card *,
body.landing-body .compare-card *,
body.landing-body .landing-flow-step *,
body.policy-body .policy-card * {
  color: inherit;
}

body.app-body .card p,
body.app-body .card li,
body.app-body .card .mini,
body.app-body .card .lead,
body.app-body .chapter-launch-panel p,
body.app-body .study-section-card p,
body.app-body .study-item-card p,
body.app-body .session-review-card p,
body.admin-body .card p,
body.admin-body .card li,
body.policy-body .policy-card p,
body.policy-body .policy-card li,
body.landing-body .card p,
body.landing-body .card li {
  color: #526373 !important;
}

body.app-body .card h1,
body.app-body .card h2,
body.app-body .card h3,
body.app-body .card h4,
body.admin-body .card h1,
body.admin-body .card h2,
body.admin-body .card h3,
body.admin-body .card h4,
body.policy-body .policy-card h1,
body.policy-body .policy-card h2,
body.policy-body .policy-card h3,
body.policy-body .policy-card h4,
body.landing-body .card h1,
body.landing-body .card h2,
body.landing-body .card h3,
body.landing-body .card h4 {
  color: #172433 !important;
}

.landing-topbar {
  position: sticky;
  top: 16px;
  z-index: 32;
  padding: 0.85rem 1rem;
  border: 1px solid rgba(23, 36, 51, 0.12);
  border-radius: 24px;
  background: rgba(255, 252, 247, 0.9) !important;
  box-shadow: 0 22px 54px rgba(20, 32, 45, 0.08);
  backdrop-filter: blur(18px);
}

.landing-topbar .brand-lockup {
  gap: 0.75rem;
}

.landing-topbar .brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
}

.landing-topbar .badge,
.landing-topbar .brand-title {
  color: #172433 !important;
}

.landing-topbar .btn-secondary {
  background: rgba(255, 255, 255, 0.78) !important;
  color: #172433 !important;
}

.site-nav {
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "brand actions"
    "nav nav";
  gap: 0.9rem 1rem;
  align-items: center;
  padding: 1rem 1.1rem !important;
  border-radius: 26px !important;
  background:
    linear-gradient(180deg, rgba(14, 23, 34, 0.96), rgba(20, 31, 44, 0.92)) !important;
  box-shadow: 0 26px 72px rgba(8, 14, 21, 0.28) !important;
}

.site-nav-primary {
  grid-area: brand;
  display: flex !important;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.site-nav-brand {
  flex: 0 0 auto;
  gap: 0.75rem !important;
}

.site-nav .brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 14px;
}

.site-nav-brand-copy {
  gap: 0.15rem !important;
}

.site-nav-title {
  font-size: 1.02rem !important;
  color: #fff8ef !important;
}

.site-nav-subtitle {
  max-width: 34ch;
  margin: 0 !important;
  font-size: 0.82rem !important;
  line-height: 1.45 !important;
  color: rgba(255, 244, 229, 0.72) !important;
}

.site-nav-links {
  grid-area: nav;
  justify-content: flex-start !important;
  gap: 0.55rem !important;
  padding-top: 0.05rem;
}

.site-nav-actions {
  grid-area: actions;
  justify-content: flex-end !important;
  align-self: start;
  gap: 0.6rem !important;
}

.site-nav-link {
  min-height: 40px !important;
  padding: 0.65rem 0.9rem !important;
  border-radius: 999px;
  color: rgba(255, 244, 229, 0.78) !important;
}

.site-nav-link:hover,
.site-nav-link:focus-visible,
.site-nav-link.is-active {
  background: rgba(255, 255, 255, 0.1) !important;
  border-color: rgba(255, 255, 255, 0.14) !important;
  color: #fffdf8 !important;
}

.site-nav-actions .btn,
.landing-topbar-actions .btn {
  min-height: 42px !important;
  padding: 0.68rem 0.95rem !important;
}

.auth-session {
  padding: 0.38rem 0.45rem 0.38rem 0.38rem !important;
  border-radius: 18px !important;
  background: rgba(255, 255, 255, 0.06) !important;
  border-color: rgba(255, 245, 232, 0.14) !important;
}

.profile-avatar {
  width: 38px !important;
  height: 38px !important;
  border-radius: 12px !important;
}

.auth-session-copy {
  gap: 0.08rem !important;
}

.auth-status {
  max-width: 18ch;
  text-align: right;
  color: rgba(255, 244, 229, 0.66) !important;
}

.site-nav .btn-secondary {
  background: rgba(255, 255, 255, 0.07) !important;
  color: #fff8ef !important;
}

.site-nav .btn-primary {
  box-shadow: none !important;
}

@media (max-width: 980px) {
  .site-nav {
    grid-template-columns: 1fr !important;
    grid-template-areas:
      "brand"
      "actions"
      "nav";
  }

  .site-nav-primary {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.55rem;
  }

  .site-nav-subtitle,
  .auth-status {
    max-width: none;
    text-align: left;
  }

  .site-nav-actions {
    justify-content: flex-start !important;
    align-self: stretch;
  }
}

@media (max-width: 760px) {
  .landing-topbar {
    position: static;
  }

  .landing-topbar,
  .site-nav {
    border-radius: 22px !important;
  }
}

/* Premium 2026 redesign overrides */

:root {
  --ink-950: #14202d;
  --ink-900: #1c2c3b;
  --ink-800: #294052;
  --ink-700: #3c5669;
  --paper-0: #fffcf6;
  --paper-50: #f6f0e6;
  --paper-100: #ece3d3;
  --paper-200: #dbcdb5;
  --stone-700: #6d6257;
  --stone-600: #7f7468;
  --stone-500: #998d7f;
  --copper-700: #8d4f2a;
  --copper-600: #a85f31;
  --copper-500: #c9773f;
  --copper-200: #efcfb3;
  --sage-700: #295d62;
  --sage-200: #cbe1db;
  --success-700: #1f7757;
  --success-100: #d9f1e5;
  --warning-700: #9c5f17;
  --warning-100: #faead3;
  --danger-700: #a2474f;
  --danger-100: #f8dde1;
  --surface-strong: rgba(255, 252, 246, 0.94);
  --surface: rgba(255, 250, 241, 0.9);
  --surface-soft: rgba(255, 255, 255, 0.74);
  --surface-tint: rgba(230, 220, 204, 0.58);
  --surface-dark: rgba(16, 25, 36, 0.86);
  --surface-dark-2: rgba(23, 34, 48, 0.72);
  --border-strong: rgba(34, 51, 68, 0.18);
  --border-soft: rgba(34, 51, 68, 0.1);
  --border-dark: rgba(255, 246, 232, 0.14);
  --shadow-sm: 0 10px 24px rgba(22, 32, 45, 0.08);
  --shadow-md: 0 18px 48px rgba(17, 27, 39, 0.14);
  --shadow-lg: 0 28px 78px rgba(15, 23, 34, 0.18);
  --shadow-xl: 0 42px 120px rgba(12, 19, 29, 0.24);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 2rem;
  --space-8: 2.5rem;
  --space-9: 3rem;
  --space-10: 4rem;
  --text-main: var(--ink-950);
  --text-muted: var(--stone-700);
  --text-soft: var(--stone-600);
  --focus-ring: 0 0 0 3px rgba(201, 119, 63, 0.18);
  --ease-standard: cubic-bezier(0.2, 0.7, 0.2, 1);
  --duration-fast: 140ms;
  --duration-base: 220ms;
  --duration-slow: 360ms;
  --bg1: var(--ink-900);
  --bg2: var(--ink-800);
  --card: var(--surface);
  --line: var(--border-soft);
  --text: var(--text-main);
  --muted: var(--text-muted);
  --ok: var(--success-700);
  --bad: var(--danger-700);
}

html {
  scroll-behavior: smooth;
}

body {
  display: block;
  min-height: 100vh;
  font-family: 'Manrope', sans-serif;
  color: var(--text-main);
  background:
    radial-gradient(circle at top left, rgba(199, 142, 92, 0.18), transparent 32%),
    radial-gradient(circle at 85% 12%, rgba(41, 93, 98, 0.16), transparent 28%),
    linear-gradient(180deg, #f7f1e7 0%, #ebe2d5 100%);
  overflow-x: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}

body::before {
  background:
    radial-gradient(circle at 12% 16%, rgba(255, 255, 255, 0.6), transparent 22%),
    radial-gradient(circle at 84% 84%, rgba(201, 119, 63, 0.09), transparent 20%);
}

body::after {
  inset: auto 0 0 0;
  height: 220px;
  background: linear-gradient(180deg, transparent, rgba(20, 32, 45, 0.06));
}

body.landing-body {
  padding: 32px 20px 64px;
}

body.app-body,
body.admin-body {
  background:
    radial-gradient(circle at 12% 14%, rgba(201, 119, 63, 0.16), transparent 24%),
    radial-gradient(circle at 88% 20%, rgba(114, 168, 177, 0.16), transparent 20%),
    linear-gradient(180deg, #172534 0%, #12202d 40%, #0f1b27 100%);
  color: var(--paper-0);
  padding: 28px 20px 64px;
}

body.app-body::before,
body.admin-body::before {
  background:
    radial-gradient(circle at 20% 14%, rgba(255, 246, 232, 0.08), transparent 18%),
    radial-gradient(circle at 80% 82%, rgba(201, 119, 63, 0.08), transparent 18%);
}

body.app-body::after,
body.admin-body::after {
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.02));
}

body.policy-body {
  padding: 28px 20px 48px;
  background:
    radial-gradient(circle at 14% 12%, rgba(201, 119, 63, 0.12), transparent 24%),
    linear-gradient(180deg, #f8f2e9 0%, #ece3d7 100%);
}

*,
*::before,
*::after {
  transition:
    border-color var(--duration-base) var(--ease-standard),
    background-color var(--duration-base) var(--ease-standard),
    color var(--duration-base) var(--ease-standard),
    box-shadow var(--duration-base) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
}

h1,
h2,
h3,
h4 {
  font-family: 'Fraunces', serif;
  letter-spacing: -0.025em;
  margin: 0;
  color: var(--ink-950);
}

p {
  margin: 0;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
input,
select,
textarea,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.hidden {
  display: none !important;
}

.landing-shell,
.workspace-shell,
.policy-shell {
  width: min(1240px, 100%);
  margin: 0 auto;
}

.workspace-shell {
  display: grid;
  gap: 24px;
}

.landing-shell {
  display: grid;
  gap: 28px;
}

.policy-shell {
  width: min(980px, 100%);
}

.card,
.policy-card,
.session-review-card,
.study-section-card,
.study-item-card,
.chapter-launch-card,
.landing-feature-card,
.subject-card,
.trust-card,
.hero-study-card,
.hero-metric-card,
.compare-card,
.workspace-hero-stat,
.auth-value-card,
.session-metric-card,
.admin-panel-block,
.admin-entry {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(253, 248, 240, 0.88));
  box-shadow: var(--shadow-md);
}

.card::before,
.policy-card::before,
.chapter-launch-card::before,
.study-section-card::before,
.study-item-card::before,
.admin-entry::before {
  content: '';
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.72), transparent);
  pointer-events: none;
}

.card {
  padding: clamp(1.25rem, 1rem + 0.8vw, 2rem);
  color: var(--ink-950);
}

.lead {
  font-size: clamp(1rem, 0.95rem + 0.38vw, 1.18rem);
  line-height: 1.75;
  color: var(--text-muted);
}

.mini {
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text-soft);
}

.badge,
.eyebrow-chip,
.review-kicker,
.subject-kicker,
.hero-card-kicker,
.study-track-kicker,
.study-item-kicker,
.auth-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.badge,
.review-kicker,
.auth-eyebrow {
  color: var(--copper-700);
}

.eyebrow-chip {
  width: fit-content;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: rgba(41, 93, 98, 0.09);
  color: var(--sage-700);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 48px;
  padding: 0.82rem 1.1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:disabled,
.download-link.is-disabled {
  opacity: 0.48;
  pointer-events: none;
  cursor: not-allowed;
}

.btn-primary {
  background: linear-gradient(135deg, var(--copper-600), var(--copper-500));
  color: var(--paper-0);
  box-shadow: 0 16px 36px rgba(168, 95, 49, 0.24);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.62);
  border-color: var(--border-strong);
  color: var(--ink-900);
}

.btn-hint {
  background: rgba(41, 93, 98, 0.1);
  border-color: rgba(41, 93, 98, 0.18);
  color: var(--sage-700);
}

.btn-danger {
  background: rgba(162, 71, 79, 0.1);
  border-color: rgba(162, 71, 79, 0.22);
  color: var(--danger-700);
}

input,
select,
textarea {
  width: 100%;
  padding: 0.92rem 1rem;
  border: 1px solid rgba(36, 55, 74, 0.14);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.86);
  color: var(--ink-950);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

textarea {
  resize: vertical;
}

label {
  display: grid;
  gap: 0.45rem;
  font-weight: 700;
  color: var(--ink-900);
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgba(201, 119, 63, 0.2), rgba(41, 93, 98, 0.22)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(243, 231, 216, 0.92));
  border: 1px solid rgba(34, 51, 68, 0.14);
  color: var(--ink-950);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.brand-lockup,
.site-nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.brand-lockup-copy,
.site-nav-brand-copy {
  display: grid;
  gap: 0.2rem;
}

.brand-title,
.site-nav-title {
  font-family: 'Fraunces', serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.landing-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.landing-topbar-actions,
.landing-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.landing-topbar .btn {
  min-height: 44px;
}

.landing-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: clamp(1.5rem, 1.2rem + 1vw, 2.6rem);
  align-items: start;
  padding: clamp(1.5rem, 1.05rem + 1.6vw, 2.75rem);
}

.landing-copy,
.landing-hero-panel,
.landing-section,
.landing-cta {
  display: grid;
  gap: 1rem;
}

.landing-title {
  font-size: clamp(2.6rem, 2rem + 3vw, 4.8rem);
  line-height: 1.02;
  max-width: 10.5ch;
}

.landing-lead {
  max-width: 58ch;
}

.landing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}

.landing-trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.trust-pill,
.study-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  background: rgba(34, 51, 68, 0.06);
  border: 1px solid rgba(34, 51, 68, 0.08);
  color: var(--ink-800);
  font-size: 0.84rem;
  font-weight: 700;
}

.landing-note {
  max-width: 48ch;
}

.landing-hero-panel {
  align-content: start;
}

.hero-study-card {
  padding: 1.4rem;
  display: grid;
  gap: 1rem;
}

.hero-step-list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.hero-metric-grid,
.landing-feature-grid,
.landing-subject-grid,
.landing-trust-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hero-metric-card,
.landing-feature-card,
.subject-card,
.trust-card {
  padding: 1.35rem;
  display: grid;
  gap: 0.65rem;
}

.hero-metric-card strong,
.landing-feature-card h3,
.subject-card h3,
.trust-card h3,
.compare-card h3 {
  font-size: 1.12rem;
}

.hero-metric-card span,
.landing-feature-card p,
.subject-card p,
.trust-card p,
.compare-list,
.section-copy {
  line-height: 1.7;
  color: var(--text-muted);
}

.landing-section {
  padding: clamp(0.25rem, 0.1rem + 0.3vw, 0.5rem) 0;
}

.section-heading {
  display: grid;
  gap: 0.8rem;
  max-width: 70ch;
}

.section-heading h2,
.landing-cta h2 {
  font-size: clamp(1.9rem, 1.6rem + 1.2vw, 3rem);
  line-height: 1.12;
}

.landing-flow-card {
  padding: clamp(1.4rem, 1rem + 1vw, 2.35rem);
}

.landing-flow-grid,
.landing-compare-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.landing-flow-step,
.compare-card {
  padding: 1.35rem;
  border-radius: 22px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: var(--shadow-sm);
}

.landing-flow-step span {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--copper-700);
}

.landing-flow-step h3 {
  margin-top: 0.8rem;
  margin-bottom: 0.55rem;
}

.landing-flow-step p,
.compare-list {
  color: var(--text-muted);
  line-height: 1.65;
}

.compare-card-strong {
  background:
    linear-gradient(180deg, rgba(251, 245, 236, 0.96), rgba(244, 236, 224, 0.92));
  border-color: rgba(168, 95, 49, 0.18);
}

.compare-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.8rem;
}

.landing-cta {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  padding: clamp(1.5rem, 1.1rem + 1vw, 2.4rem);
}

.landing-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.5rem;
  color: var(--stone-700);
}

.landing-footer a {
  text-decoration: none;
  color: var(--ink-800);
  font-weight: 700;
}

.site-nav {
  position: sticky;
  top: 16px;
  z-index: 30;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem 1.15rem;
  border: 1px solid var(--border-dark);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(17, 27, 39, 0.94), rgba(17, 27, 39, 0.84));
  box-shadow: var(--shadow-xl);
  backdrop-filter: blur(22px);
}

.site-nav-primary {
  display: grid;
  gap: 0.45rem;
}

.site-nav .brand-mark,
.site-nav .badge,
.site-nav-title,
.site-nav-subtitle,
.site-nav-link,
.auth-session,
.auth-status {
  color: var(--paper-0);
}

.site-nav .brand-mark {
  background:
    linear-gradient(135deg, rgba(201, 119, 63, 0.28), rgba(41, 93, 98, 0.26)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.06));
  border-color: rgba(255, 255, 255, 0.16);
  color: var(--paper-0);
}

.site-nav .badge {
  color: rgba(255, 235, 214, 0.82);
}

.site-nav-subtitle {
  font-size: 0.9rem;
  line-height: 1.5;
  color: rgba(255, 245, 232, 0.72);
  max-width: 44ch;
}

.site-nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
}

.site-nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.7rem 0.95rem;
  border-radius: 999px;
  background: transparent;
  border: 1px solid transparent;
  color: rgba(255, 245, 232, 0.72);
  font-weight: 700;
}

.site-nav-link:hover,
.site-nav-link:focus-visible,
.site-nav-link.is-active {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--paper-0);
}

.site-nav-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.site-nav-actions .btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.14);
  color: var(--paper-0);
}

.auth-session {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.4rem 0.5rem 0.4rem 0.4rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
}

.profile-avatar {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(201, 119, 63, 0.92), rgba(112, 165, 171, 0.9));
  color: var(--paper-0);
}

.auth-session-label,
.auth-session-email {
  color: rgba(255, 245, 232, 0.68);
}

.auth-stage,
.workspace-stage {
  display: grid;
  gap: 24px;
}

.screen {
  display: none;
}

.screen.active {
  display: grid;
  gap: 24px;
}

.auth-gate {
  width: min(980px, 100%);
  margin: 0 auto;
}

.auth-card {
  padding: clamp(1.4rem, 1rem + 1.4vw, 2.25rem);
  display: grid;
  gap: 0.9rem;
}

.auth-card h2 {
  font-size: clamp(2rem, 1.7rem + 1.3vw, 2.8rem);
  line-height: 1.08;
  max-width: 14ch;
}

.auth-progress {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.auth-progress span {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.56);
  color: var(--text-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.auth-progress .is-active {
  background: rgba(201, 119, 63, 0.1);
  border-color: rgba(201, 119, 63, 0.18);
  color: var(--copper-700);
}

.auth-progress .is-complete {
  background: rgba(31, 119, 87, 0.1);
  border-color: rgba(31, 119, 87, 0.18);
  color: var(--success-700);
}

.auth-card,
.workspace-hero,
.workspace-config-card,
.workspace-modes-card,
.practice-status-card,
.question-card,
.session-end-card,
.study-hero-card {
  color: var(--ink-950);
}

.auth-cta-block,
.auth-pill-row,
.auth-switch,
.auth-gate-actions,
.signup-checkboxes,
.practice-assist-actions,
.review-actions,
.chapter-launch-actions,
.study-item-actions,
.study-screen-actions,
.chapter-study-rail-actions,
.actions-row,
.policy-actions,
.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.auth-pill-row {
  margin-top: 1rem;
}

.auth-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.48rem 0.8rem;
  border-radius: 999px;
  background: rgba(36, 55, 74, 0.05);
  border: 1px solid rgba(36, 55, 74, 0.08);
  color: var(--ink-800);
  font-size: 0.82rem;
  font-weight: 700;
}

.auth-value-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.auth-value-card {
  padding: 1rem 1.1rem;
  display: grid;
  gap: 0.4rem;
}

.auth-value-card strong {
  font-size: 1rem;
}

.auth-value-card span,
.auth-gate-note,
.auth-inline-note,
.auth-inline-status {
  line-height: 1.65;
  color: var(--text-muted);
}

.auth-divider {
  position: relative;
  margin: 1.5rem 0 1rem;
  text-align: center;
}

.auth-divider::before {
  content: '';
  position: absolute;
  inset: 50% 0 auto;
  border-top: 1px solid var(--border-soft);
}

.auth-divider span {
  position: relative;
  display: inline-block;
  padding: 0 0.8rem;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(253, 248, 240, 0.94));
  color: var(--text-soft);
}

.auth-switch {
  gap: 0.5rem;
}

.auth-switch-btn {
  min-height: 44px;
  padding: 0.7rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: rgba(255, 255, 255, 0.66);
  color: var(--ink-900);
  font-weight: 700;
  cursor: pointer;
}

.auth-switch-btn.active {
  background: rgba(201, 119, 63, 0.12);
  border-color: rgba(201, 119, 63, 0.22);
  color: var(--copper-700);
}

.signup-form {
  margin-top: 1.2rem;
  display: grid;
  gap: 1.2rem;
}

.auth-form-group {
  display: grid;
  gap: 0.9rem;
  padding: 1rem;
  border: 1px solid var(--border-soft);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.52);
}

.auth-form-group-head {
  display: grid;
  gap: 0.35rem;
}

.auth-form-group-title {
  font-family: 'Fraunces', serif;
  font-size: 1.1rem;
  color: var(--ink-900);
}

.auth-form-group-note {
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.65;
}

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

.signup-field-full {
  grid-column: 1 / -1;
}

.signup-field label {
  font-size: 0.9rem;
}

.signup-checkboxes {
  flex-direction: column;
  align-items: stretch;
  gap: 0.65rem;
}

.signup-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.95rem 1rem;
  border-radius: 18px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.52);
  font-weight: 500;
  line-height: 1.6;
}

.signup-checkbox input {
  width: 18px;
  height: 18px;
  margin-top: 0.15rem;
}

.workspace-hero,
.workspace-start-grid,
.practice-shell,
.study-shell,
.session-end-card {
  display: grid;
  gap: 1.25rem;
}

.workspace-hero {
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  align-items: start;
}

.workspace-hero-copy,
.workspace-config-card,
.workspace-modes-card {
  display: grid;
  gap: 1rem;
}

.workspace-hero h1 {
  font-size: clamp(2.2rem, 1.8rem + 1.4vw, 3.4rem);
  line-height: 1.05;
  max-width: 12ch;
}

.workspace-status-line {
  max-width: 56ch;
}

.workspace-hero-grid {
  display: grid;
  gap: 1rem;
}

.workspace-hero-stat {
  padding: 1.15rem 1.2rem;
  display: grid;
  gap: 0.5rem;
}

.workspace-hero-stat strong {
  font-size: 1rem;
}

.workspace-hero-stat span {
  color: var(--text-muted);
  line-height: 1.65;
}

.workspace-start-grid {
  grid-template-columns: minmax(0, 0.98fr) minmax(0, 1.02fr);
  align-items: start;
}

.section-heading-inline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.config-stack,
.study-track-panel,
.chapter-launch-panel {
  display: grid;
  gap: 1rem;
}

.chapter-launch-panel {
  padding: clamp(1.25rem, 1rem + 0.7vw, 1.9rem);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 252, 247, 0.94), rgba(248, 241, 230, 0.9));
  box-shadow: var(--shadow-md);
  color: var(--ink-950);
}

.chapter-config {
  display: grid;
  gap: 0.5rem;
}

.chapter-status {
  min-height: 1.4em;
}

.study-track-grid,
.chapter-launch-grid,
.study-item-grid,
.session-metric-grid,
.session-band-grid {
  display: grid;
  gap: 1rem;
}

.study-track-grid,
.chapter-launch-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.study-track-card {
  display: grid;
  gap: 0.7rem;
  padding: 1.25rem;
  border-radius: 24px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink-900);
  text-align: left;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.study-track-card strong {
  font-size: 1.2rem;
}

.study-track-card span:last-child {
  color: var(--text-muted);
  line-height: 1.65;
}

.study-track-card.active {
  transform: translateY(-3px);
  border-color: rgba(201, 119, 63, 0.28);
  background:
    linear-gradient(180deg, rgba(251, 244, 235, 0.96), rgba(247, 238, 225, 0.92));
  box-shadow: 0 24px 54px rgba(141, 79, 42, 0.16);
}

.chapter-launch-head {
  display: grid;
  gap: 1rem;
}

.chapter-launch-copy {
  display: grid;
  gap: 0.7rem;
}

.chapter-launch-copy h2 {
  font-size: clamp(1.7rem, 1.45rem + 0.9vw, 2.4rem);
}

.chapter-launch-lead,
.chapter-launch-summary,
.chapter-study-rail-summary,
.chapter-study-rail-status,
.study-preview-summary,
.study-screen-summary,
.study-section-lead,
.study-empty {
  line-height: 1.7;
  color: var(--text-muted);
}

.chapter-launch-card {
  padding: 1.2rem;
  display: grid;
  gap: 0.9rem;
}

.chapter-launch-card.is-selected {
  border-color: rgba(41, 93, 98, 0.22);
  box-shadow: 0 24px 58px rgba(41, 93, 98, 0.12);
}

.chapter-launch-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.chapter-launch-state {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.03em;
}

.chapter-launch-state.is-ready {
  background: var(--success-100);
  color: var(--success-700);
}

.chapter-launch-state.is-waiting {
  background: var(--warning-100);
  color: var(--warning-700);
}

.chapter-launch-title {
  font-size: 1.3rem;
}

.chapter-launch-caption {
  margin: -0.25rem 0 0;
  color: var(--copper-700);
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.chapter-launch-pills,
.study-pill-row,
.chapter-study-rail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chapter-launch-metric-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.chapter-launch-metric {
  padding: 0.85rem 0.9rem;
  border-radius: 18px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.58);
  display: grid;
  gap: 0.28rem;
}

.chapter-launch-metric span {
  color: var(--text-soft);
  font-size: 0.8rem;
  font-weight: 700;
}

.chapter-launch-metric strong {
  color: var(--ink-900);
  font-size: 0.95rem;
  line-height: 1.45;
}

.chapter-launch-actions .btn,
.actions-row .btn {
  flex: 1 1 0;
}

.practice-shell {
  gap: 1rem;
}

.practice-status-card,
.question-card,
.feedback-box,
.study-hero-card,
.session-end-card {
  border-radius: var(--radius-lg);
}

.practice-status-card {
  padding: 1.2rem;
  background:
    linear-gradient(180deg, rgba(255, 252, 247, 0.94), rgba(248, 242, 232, 0.9));
}

.hud {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.75rem;
}

.hud p {
  display: grid;
  gap: 0.22rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border-soft);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink-900);
  font-size: 0.88rem;
  font-weight: 800;
}

.progress-track {
  height: 10px;
  border-radius: 999px;
  background: rgba(34, 51, 68, 0.08);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--sage-700), var(--copper-500));
}

.chapter-study-rail {
  display: grid;
  gap: 1rem;
}

.chapter-study-rail-head,
.study-screen-head,
.study-preview-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.chapter-study-rail-copy,
.study-screen-copy,
.study-preview-copy {
  display: grid;
  gap: 0.55rem;
}

.chapter-study-rail-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--ink-900);
}

.chapter-track-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chapter-track-tab {
  min-height: 42px;
  padding: 0.7rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink-900);
  font-weight: 700;
  cursor: pointer;
}

.chapter-track-tab.active {
  background: rgba(201, 119, 63, 0.12);
  border-color: rgba(201, 119, 63, 0.22);
  color: var(--copper-700);
}

.practice-layout {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  align-items: start;
}

.question-card,
.feedback-box {
  padding: clamp(1.2rem, 1rem + 0.6vw, 1.8rem);
}

.question-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.prompt {
  font-size: clamp(1.45rem, 1.2rem + 0.9vw, 2rem);
  line-height: 1.35;
  color: var(--ink-950);
}

.structured-prompt-block,
.challenge-host,
.practice-assist-stack,
.review-shell,
.study-screen-hero,
.study-screen-sections,
.session-review {
  display: grid;
  gap: 1rem;
}

.code {
  padding: 1rem;
  border-radius: 20px;
  background: #172534;
  color: #f6efe4;
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.92rem;
  overflow: auto;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.option-grid,
.option-list,
.match-grid {
  display: grid;
  gap: 0.9rem;
}

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

.challenge-field {
  display: grid;
  gap: 0.5rem;
}

.challenge-field-label {
  font-size: 0.9rem;
  color: var(--text-soft);
  font-weight: 800;
}

.challenge-input {
  border-radius: 18px;
}

.answer-editor {
  min-height: 220px;
}

.theory-editor,
.theory-fill-editor {
  min-height: 180px;
}

.program-editor {
  min-height: 260px;
  font-family: 'IBM Plex Mono', monospace;
}

.answer-input {
  max-width: 320px;
}

.option-btn,
.order-item,
.match-row {
  border-radius: 20px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-sm);
}

.option-btn {
  width: 100%;
  min-height: 72px;
  padding: 1rem;
  text-align: left;
  color: var(--ink-900);
  font-weight: 700;
  cursor: pointer;
}

.option-btn.is-selected {
  border-color: rgba(41, 93, 98, 0.26);
  background: rgba(203, 225, 219, 0.42);
  box-shadow: 0 0 0 3px rgba(41, 93, 98, 0.12);
}

.match-row,
.order-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1rem;
}

.match-label,
.order-item-label {
  flex: 1;
  line-height: 1.6;
  color: var(--ink-900);
}

.order-controls {
  display: flex;
  gap: 0.45rem;
}

.small-btn {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.78);
  color: var(--ink-900);
  cursor: pointer;
}

.small-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.order-item.moved-up,
.order-item.moved-down {
  border-color: rgba(201, 119, 63, 0.26);
  box-shadow: 0 0 0 3px rgba(201, 119, 63, 0.1);
}

.practice-support-column {
  display: grid;
  gap: 1rem;
}

.hint-box {
  position: sticky;
  top: 110px;
}

.practice-assist-card {
  padding: 1.1rem;
  border-radius: 24px;
  border: 1px solid rgba(41, 93, 98, 0.14);
  background:
    linear-gradient(180deg, rgba(244, 249, 247, 0.96), rgba(236, 245, 241, 0.92));
  box-shadow: var(--shadow-sm);
}

.practice-assist-kicker {
  margin-bottom: 0.45rem;
  color: var(--sage-700);
}

.practice-assist-title {
  font-family: 'Fraunces', serif;
  font-size: 1.18rem;
  color: var(--ink-950);
}

.practice-assist-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.6rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.practice-assist-meta {
  padding: 0.85rem 0.95rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.68);
  color: var(--text-muted);
  line-height: 1.65;
}

.feedback-box {
  background:
    linear-gradient(180deg, rgba(255, 252, 247, 0.96), rgba(250, 244, 235, 0.92));
}

.feedback-box.ok {
  border-color: rgba(31, 119, 87, 0.16);
}

.feedback-box.bad {
  border-color: rgba(162, 71, 79, 0.16);
}

.review-shell {
  gap: 1rem;
}

.review-scorecard,
.review-callout,
.model-answer,
.detail-explanation,
.review-block {
  padding: 1.1rem;
  border-radius: 24px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.68);
}

.review-scorecard {
  display: grid;
  gap: 0.9rem;
}

.review-scorecard-strong {
  border-color: rgba(31, 119, 87, 0.2);
  background: linear-gradient(180deg, rgba(241, 250, 245, 0.98), rgba(230, 246, 237, 0.94));
}

.review-scorecard-partial {
  border-color: rgba(156, 95, 23, 0.18);
  background: linear-gradient(180deg, rgba(252, 247, 237, 0.98), rgba(249, 239, 220, 0.94));
}

.review-scorecard-needs-work {
  border-color: rgba(162, 71, 79, 0.16);
  background: linear-gradient(180deg, rgba(252, 244, 245, 0.98), rgba(248, 235, 237, 0.94));
}

.review-score-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.review-score-title {
  font-size: 1.35rem;
}

.review-score-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  padding: 0.6rem 0.9rem;
  border-radius: 999px;
  background: rgba(20, 32, 45, 0.08);
  color: var(--ink-900);
  font-weight: 800;
}

.review-score-main {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
}

.review-score-main strong {
  font-family: 'Fraunces', serif;
  font-size: clamp(2rem, 1.7rem + 0.9vw, 2.8rem);
  color: var(--ink-950);
}

.review-score-main span,
.review-score-copy,
.review-callout,
.review-line,
.model-answer-text,
.study-item-copy,
.study-item-subcopy,
.policy-intro,
.policy-list,
.policy-section p,
.admin-copy,
.admin-summary {
  line-height: 1.72;
  color: var(--text-muted);
}

.review-callout strong {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--ink-900);
}

.review-callout-warning {
  background: var(--warning-100);
  border-color: rgba(156, 95, 23, 0.16);
}

.model-answer-head {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 0.8rem;
}

.model-answer-head h3 {
  font-size: 1.25rem;
}

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

.review-btn {
  min-height: 44px;
}

.review-line {
  margin: 0;
}

.review-line + .review-line {
  margin-top: 0.55rem;
}

.model-answer-text mark,
.review-table mark {
  background: rgba(201, 119, 63, 0.18);
  color: var(--ink-950);
  padding: 0 0.15em;
  border-radius: 0.2em;
}

.review-table-wrap,
.admin-table-wrap {
  overflow-x: auto;
}

.review-table,
.admin-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}

.review-table th,
.review-table td,
.admin-table th,
.admin-table td {
  padding: 0.82rem 0.9rem;
  border: 1px solid rgba(34, 51, 68, 0.12);
  text-align: left;
  vertical-align: top;
}

.review-table th,
.admin-table th {
  background: rgba(20, 32, 45, 0.06);
  color: var(--ink-900);
}

.math-figure-wrap {
  display: grid;
  gap: 0.7rem;
  padding: 1rem;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--border-soft);
}

.math-figure-image {
  width: 100%;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.92);
}

.math-figure-caption {
  color: var(--text-soft);
  font-size: 0.86rem;
}

.review-chat-log {
  max-height: 420px;
  overflow: auto;
  display: grid;
  gap: 0.8rem;
}

.review-chat-msg {
  display: flex;
}

.review-chat-msg.user {
  justify-content: flex-end;
}

.review-chat-bubble {
  max-width: min(92%, 580px);
  padding: 0.9rem 1rem;
  border-radius: 20px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.76);
}

.review-chat-msg.user .review-chat-bubble {
  background: rgba(201, 119, 63, 0.12);
  border-color: rgba(201, 119, 63, 0.18);
}

.review-chat-role {
  margin-bottom: 0.35rem;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.review-chat-form {
  display: grid;
  gap: 0.8rem;
}

.review-chat-actions {
  justify-content: flex-end;
}

.study-shell {
  gap: 1rem;
}

.study-hero-card,
.study-section-card,
.session-end-card {
  padding: clamp(1.25rem, 1rem + 0.7vw, 1.9rem);
}

.study-screen-summary,
.study-section-lead,
.study-preview-summary {
  max-width: 70ch;
}

.study-pill-row {
  margin-top: 0.5rem;
}

.study-screen-sections {
  gap: 1rem;
}

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

.study-item-card {
  padding: 1.15rem;
  display: grid;
  gap: 0.8rem;
}

.study-item-title {
  font-size: 1.2rem;
}

.study-callout,
.study-formula {
  padding: 0.85rem 0.95rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid var(--border-soft);
}

.study-callout strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--ink-900);
}

.study-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.6rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.session-review-grid {
  display: grid;
  gap: 1rem;
}

.session-review-card {
  padding: 1.1rem;
}

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

.session-metric-card {
  padding: 1rem;
  display: grid;
  gap: 0.35rem;
}

.session-metric-card span,
.session-card-mini,
.session-question-copy,
.session-area-meta {
  color: var(--text-soft);
}

.session-metric-card strong {
  font-family: 'Fraunces', serif;
  font-size: 1.45rem;
}

.session-card-title {
  margin-bottom: 0.9rem;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ink-900);
}

.session-area-row {
  display: grid;
  gap: 0.55rem;
}

.session-area-copy {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.92rem;
}

.session-area-label {
  font-weight: 800;
  color: var(--ink-900);
}

.session-area-track {
  height: 10px;
  border-radius: 999px;
  background: rgba(34, 51, 68, 0.08);
  overflow: hidden;
}

.session-area-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--sage-700), var(--copper-500));
}

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

.session-band-pill {
  padding: 0.95rem;
  border-radius: 18px;
  border: 1px solid var(--border-soft);
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-weight: 800;
}

.session-band-pill.strong {
  background: var(--success-100);
  color: var(--success-700);
}

.session-band-pill.good {
  background: rgba(203, 225, 219, 0.45);
  color: var(--sage-700);
}

.session-band-pill.mid {
  background: var(--warning-100);
  color: var(--warning-700);
}

.session-band-pill.low {
  background: var(--danger-100);
  color: var(--danger-700);
}

.session-recommendation-list {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.7rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.session-question-list {
  display: grid;
  gap: 0.85rem;
}

.session-question-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1rem;
  border-radius: 18px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.62);
}

.session-question-title {
  font-weight: 800;
  color: var(--ink-900);
  margin-bottom: 0.2rem;
}

.session-question-score {
  min-width: 58px;
  text-align: center;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  background: rgba(162, 71, 79, 0.1);
  color: var(--danger-700);
  font-weight: 800;
}

.admin-shell {
  gap: 1rem;
}

.admin-hero,
.admin-status-card,
.admin-empty {
  color: var(--ink-950);
}

.admin-hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.admin-actions {
  justify-content: flex-end;
}

.admin-list {
  display: grid;
  gap: 1rem;
}

.admin-entry {
  padding: 1.2rem;
  display: grid;
  gap: 1rem;
}

.admin-entry-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.admin-entry-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.admin-panel-block {
  padding: 1rem;
}

.admin-panel-title,
.admin-table-title {
  margin-bottom: 0.75rem;
  font-weight: 800;
  color: var(--ink-900);
}

.admin-meta-stack {
  display: grid;
  gap: 0.45rem;
  justify-items: end;
}

.admin-status-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.72rem;
  border-radius: 999px;
  background: rgba(20, 32, 45, 0.08);
  color: var(--ink-900);
  font-weight: 800;
}

.admin-status-pill.is-ok {
  background: var(--success-100);
  color: var(--success-700);
}

.admin-status-pill.is-bad {
  background: var(--danger-100);
  color: var(--danger-700);
}

.admin-answer-text {
  margin: 0;
  padding: 1rem;
  border-radius: 16px;
  background: #172534;
  color: #f6efe4;
  overflow: auto;
  font-family: 'IBM Plex Mono', monospace;
}

.admin-answer-image-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
}

.admin-image-button {
  display: block;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.admin-inline-image,
.admin-answer-image {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.78);
}

.admin-image-modal {
  width: min(92vw, 980px);
  padding: 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 24px;
  background: rgba(14, 23, 34, 0.96);
  color: var(--paper-0);
  box-shadow: var(--shadow-xl);
}

.admin-image-modal::backdrop {
  background: rgba(8, 13, 20, 0.72);
}

.admin-image-close {
  min-height: 42px;
  margin-bottom: 0.8rem;
  padding: 0.7rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  color: var(--paper-0);
}

.admin-image-preview {
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
}

.admin-image-caption {
  margin-top: 0.75rem;
  color: rgba(255, 245, 232, 0.72);
}

.policy-card {
  padding: clamp(1.5rem, 1.15rem + 1vw, 2.4rem);
}

.policy-card h1 {
  font-size: clamp(2.1rem, 1.75rem + 1.1vw, 3rem);
  margin-bottom: 0.4rem;
}

.policy-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.4rem 0 0.4rem;
}

.policy-link {
  padding: 0.6rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: rgba(255, 255, 255, 0.62);
  text-decoration: none;
  font-weight: 700;
  color: var(--ink-900);
}

.policy-section {
  margin-top: 1.55rem;
  display: grid;
  gap: 0.7rem;
}

.policy-section h2 {
  font-size: 1.3rem;
}

.policy-list {
  margin: 0;
  padding-left: 1.2rem;
  display: grid;
  gap: 0.7rem;
}

.policy-note {
  padding: 0.95rem 1rem;
  border-radius: 18px;
  background: rgba(201, 119, 63, 0.1);
  border: 1px solid rgba(201, 119, 63, 0.16);
}

.policy-actions {
  margin-top: 1.6rem;
}

@keyframes rise-fade {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.landing-hero,
.landing-section,
.landing-cta,
.site-nav,
.auth-card,
.workspace-hero,
.workspace-config-card,
.workspace-modes-card,
.chapter-launch-panel,
.practice-status-card,
.question-card,
.feedback-box,
.study-hero-card,
.session-end-card,
.admin-entry,
.policy-card {
  animation: rise-fade var(--duration-slow) var(--ease-standard);
}

@media (max-width: 1180px) {
  .site-nav {
    grid-template-columns: 1fr;
  }

  .site-nav-links {
    justify-content: flex-start;
  }

  .site-nav-actions {
    justify-content: flex-start;
  }

  .workspace-hero,
  .workspace-start-grid,
  .practice-layout,
  .landing-hero,
  .landing-cta,
  .admin-entry-grid {
    grid-template-columns: 1fr;
  }

  .hint-box {
    position: static;
  }

  .hero-metric-grid,
  .landing-feature-grid,
  .landing-subject-grid,
  .landing-trust-grid,
  .study-track-grid,
  .chapter-launch-grid,
  .study-item-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  body.landing-body,
  body.app-body,
  body.admin-body,
  body.policy-body {
    padding-left: 14px;
    padding-right: 14px;
  }

  .landing-topbar,
  .landing-footer,
  .section-heading-inline,
  .auth-value-grid,
  .study-screen-head,
  .chapter-study-rail-head,
  .admin-entry-header,
  .admin-hero {
    grid-template-columns: 1fr;
    display: grid;
  }

  .landing-topbar-actions,
  .landing-footer-links,
  .site-nav-actions,
  .auth-gate-actions,
  .chapter-study-rail-actions {
    justify-content: flex-start;
  }

  .landing-flow-grid,
  .landing-compare-grid,
  .hero-metric-grid,
  .landing-feature-grid,
  .landing-subject-grid,
  .landing-trust-grid,
  .study-track-grid,
  .chapter-launch-grid,
  .study-item-grid,
  .session-metric-grid,
  .session-band-grid,
  .signup-grid,
  .admin-entry-grid {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 620px) {
  .landing-title,
  .workspace-hero h1,
  .auth-card h2 {
    max-width: none;
  }

  .site-nav {
    padding: 0.95rem;
    border-radius: 22px;
    top: 12px;
  }

  .card,
  .policy-card,
  .study-section-card,
  .study-item-card,
  .chapter-launch-card,
  .session-end-card,
  .admin-entry {
    padding: 1rem;
  }

  .actions-row .btn,
  .chapter-launch-actions .btn,
  .practice-assist-actions .btn,
  .study-item-actions .btn,
  .policy-actions .btn,
  .admin-actions .btn {
    width: 100%;
  }

  .chapter-track-tabs {
    width: 100%;
  }

  .chapter-track-tab {
    flex: 1 1 calc(50% - 0.4rem);
  }

  .review-score-head,
  .session-question-row,
  .session-area-copy {
    flex-direction: column;
    align-items: flex-start;
  }

  .review-score-pill,
  .session-question-score {
    min-width: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Nunito', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% 15%, #2f5ca3 0%, transparent 45%),
    radial-gradient(circle at 88% 80%, #6f2a4f 0%, transparent 36%),
    linear-gradient(160deg, var(--bg1), var(--bg2));
  display: grid;
  place-items: center;
}

body.app-body {
  --bg1: #0c1830;
  --bg2: #173665;
  --card: rgba(8, 15, 31, 0.82);
  --line: rgba(205, 226, 255, 0.16);
  --text: #f7fbff;
  --muted: #b7caea;
  --ok: #39d98a;
  --bad: #ff7d7d;
  background:
    radial-gradient(circle at 12% 14%, rgba(85, 145, 255, 0.32) 0%, transparent 34%),
    radial-gradient(circle at 84% 18%, rgba(68, 239, 212, 0.15) 0%, transparent 28%),
    radial-gradient(circle at 88% 82%, rgba(159, 88, 127, 0.28) 0%, transparent 36%),
    linear-gradient(160deg, var(--bg1), var(--bg2));
  color: var(--text);
  place-items: start center;
  padding: 32px 20px 56px;
}

.landing-shell {
  width: min(1120px, 94vw);
  display: grid;
  gap: 1rem;
}

.landing-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.9fr);
  gap: 1.2rem;
  align-items: stretch;
}

.landing-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
}

.landing-lead {
  max-width: 58ch;
}

.landing-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.landing-note {
  margin-top: 0.85rem;
}

.landing-panel {
  display: grid;
  gap: 0.8rem;
}

.landing-feature {
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.07);
  padding: 1rem;
}

.landing-feature h2 {
  margin-bottom: 0.45rem;
}

.landing-feature p,
.landing-meta-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.landing-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
}

.landing-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.arcade-shell {
  width: min(980px, 94vw);
  display: grid;
  gap: 1rem;
}

body.app-body .arcade-shell {
  width: min(1120px, 100%);
  gap: 18px;
}

.site-nav {
  position: sticky;
  top: 18px;
  z-index: 20;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 0.95rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(8, 15, 31, 0.8);
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.site-nav-brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: inherit;
}

.site-nav-brand .badge {
  margin: 0;
}

.site-nav-title {
  font-family: 'Bungee', cursive;
  font-size: 1.05rem;
  line-height: 1.1;
}

.site-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.site-nav-link {
  text-decoration: none;
  color: var(--muted);
  font-weight: 800;
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.site-nav-track-btn {
  appearance: none;
  background: transparent;
  font: inherit;
  line-height: 1.2;
  cursor: pointer;
}

.site-nav-track-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.site-nav-link:hover,
.site-nav-link:focus-visible,
.site-nav-link.is-active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--line);
}

.site-nav-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.nav-login-btn {
  white-space: nowrap;
}

.nav-apk-btn {
  white-space: nowrap;
}

.auth-session {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  padding: 0.4rem 0.45rem 0.4rem 0.45rem;
}

.profile-avatar {
  width: 40px;
  height: 40px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #45efd4, #9fffe9);
  color: #073848;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.auth-session-copy {
  display: grid;
  gap: 0.1rem;
  text-align: left;
}

.auth-session-label {
  margin: 0;
  font-size: 0.76rem;
  color: var(--muted);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.auth-session-name,
.auth-session-email {
  margin: 0;
}

.auth-session-name {
  font-weight: 900;
  line-height: 1.1;
}

.auth-session-email {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.1;
}

.profile-logout-btn {
  white-space: nowrap;
}

.auth-stage,
.workspace-stage {
  display: grid;
  gap: 1rem;
}

.shell-topbar {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.9fr);
  gap: 1rem;
  align-items: center;
}

body.app-body .shell-topbar {
  gap: 1rem;
}

.shell-title {
  font-size: clamp(1.4rem, 3.6vw, 2.4rem);
}

body.app-body .shell-title,
body.app-body h1 {
  font-family: 'Bungee', cursive;
  font-size: clamp(1.45rem, 3.8vw, 2.4rem);
  font-weight: 400;
  letter-spacing: 0;
}

.shell-copy {
  max-width: 54ch;
  margin-bottom: 0;
}

.auth-panel {
  display: grid;
  gap: 0.7rem;
  justify-items: end;
  text-align: right;
}

.auth-profile {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 0.75rem;
  align-items: center;
  justify-items: end;
}

.auth-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(159, 255, 233, 0.45);
  background: rgba(255, 255, 255, 0.08);
}

body.app-body .auth-avatar {
  border: 1px solid rgba(159, 255, 233, 0.32);
  background: rgba(255, 255, 255, 0.08);
}

body.app-body .auth-user-name {
  font-size: 0.95rem;
}

body.app-body .auth-user-email {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

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

.auth-user-name,
.auth-user-email {
  margin: 0;
}

.auth-user-name {
  font-weight: 900;
}

.auth-user-email {
  color: var(--muted);
  word-break: break-word;
}

.auth-status {
  min-height: 1.1rem;
  margin: 0;
}

.auth-actions {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.auth-stage {
  width: min(440px, 100%);
  margin: 8vh auto 0;
  padding: 0;
}

body.app-body .auth-stage {
  width: min(520px, 100%);
  margin: 16px auto 0;
}

.auth-gate {
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

body.app-body .auth-gate {
  width: 100%;
}

.auth-gate h2,
.auth-gate p {
  margin-top: 0;
}

.auth-card {
  display: grid;
  gap: 0.9rem;
  padding: 1.2rem;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(18px);
}

body.app-body .auth-card {
  gap: 0.95rem;
  padding: 1.25rem;
}

.auth-card-enrollment {
  gap: 1rem;
}

.auth-eyebrow {
  margin: 0;
  color: #9fffea;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.auth-lead {
  color: var(--muted);
  line-height: 1.6;
}

.auth-pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.auth-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(159, 255, 234, 0.26);
  background: rgba(159, 255, 234, 0.08);
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 800;
}

.auth-value-grid {
  display: grid;
  gap: 0.75rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.auth-value-card {
  display: grid;
  gap: 0.3rem;
  padding: 0.85rem 0.9rem;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.auth-value-card strong {
  font-size: 0.88rem;
}

.auth-value-card span {
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.9rem;
}

.auth-switch {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.45rem;
}

.auth-switch-btn {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font: inherit;
  font-weight: 800;
  padding: 0.7rem 0.8rem;
  cursor: pointer;
}

body.app-body .auth-switch-btn {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-weight: 800;
}

.auth-switch-btn.active {
  background: rgba(69, 239, 212, 0.14);
  color: var(--text);
  border-color: rgba(69, 239, 212, 0.32);
}

body.app-body .auth-switch-btn.active {
  background: rgba(69, 239, 212, 0.16);
  color: var(--text);
  border-color: rgba(69, 239, 212, 0.34);
}

.auth-inline-status {
  margin: 0;
  color: #ffd6a6;
}

body.app-body .auth-inline-status {
  color: #ffd6a6;
}

.auth-gate-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-top: 0.9rem;
}

.auth-login-grid {
  grid-template-columns: minmax(0, 1fr);
}

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

.auth-submit {
  width: 100%;
  justify-content: center;
}

.auth-gate-note {
  margin-top: 0.7rem;
  color: var(--muted);
}

.auth-divider {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.8rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
}

.auth-inline-note {
  margin: 0;
  color: var(--muted);
}

.auth-google-btn {
  min-height: 48px;
  font-size: 1rem;
}

.auth-gate-note a {
  color: #9fffea;
  font-weight: 800;
}

.signup-form {
  display: grid;
  gap: 0.8rem;
}

.signup-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.signup-field {
  display: grid;
  gap: 0.35rem;
}

.signup-field label {
  font-weight: 800;
  color: var(--muted);
}

body.app-body .signup-field label {
  font-weight: 800;
  font-size: 0.92rem;
}

body.app-body .signup-field input,
body.app-body .chapter-config select,
body.app-body .review-chat-input,
body.app-body textarea,
body.app-body select {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 10px 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

body.app-body .signup-field input[readonly] {
  opacity: 0.8;
  cursor: default;
  background: rgba(255, 255, 255, 0.05);
}

.signup-field-full {
  grid-column: 1 / -1;
}

.signup-checkboxes {
  display: grid;
  gap: 0.55rem;
}

.signup-checkbox {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
  color: var(--muted);
}

body.app-body .signup-checkbox {
  font-size: 0.92rem;
}

.signup-checkbox input {
  width: auto;
  margin-top: 0.2rem;
}

.signup-checkbox a {
  color: #9fffea;
  font-weight: 800;
}

body.app-body .signup-checkbox a,
body.app-body .legal-link {
  color: #9fffea;
  font-weight: 800;
}

.download-link.is-disabled,
.btn.is-disabled {
  pointer-events: none;
  opacity: 0.55;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.34);
  padding: clamp(1rem, 2.4vw, 1.8rem);
}

body.app-body .card {
  border-radius: 24px;
  box-shadow: 0 20px 70px rgba(0, 0, 0, 0.34);
  padding: clamp(1rem, 2.4vw, 1.8rem);
}

.screen {
  display: none;
}

.screen.active {
  display: block;
  animation: pop 220ms ease-out;
}

h1,
h2 {
  margin: 0;
  line-height: 1.2;
}

h1 {
  font-family: 'Bungee', cursive;
  font-size: clamp(1.7rem, 4.2vw, 2.6rem);
}

h2 {
  font-size: clamp(1.2rem, 2.8vw, 1.9rem);
}

body.app-body h2 {
  font-size: clamp(1.2rem, 2.8vw, 1.9rem);
  font-weight: 800;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  background: linear-gradient(90deg, #44efd4, #9fffea);
  color: #003246;
  font-weight: 900;
  margin: 0 0 0.8rem;
}

body.app-body .badge {
  background: linear-gradient(90deg, #44efd4, #9fffea);
  color: #003246;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 900;
  margin: 0 0 0.8rem;
}

.lead {
  color: var(--muted);
  margin: 0.6rem 0;
}

.mini {
  color: var(--muted);
  margin: 0.3rem 0 0.9rem;
}

.study-track-panel,
.track-mode-panel {
  margin-top: 0.95rem;
  display: grid;
  gap: 0.75rem;
}

.chapter-launch-panel {
  margin-top: 1rem;
}

.chapter-launch-head {
  border: 1px solid rgba(159, 255, 234, 0.2);
  border-radius: 24px;
  padding: 1rem;
  background:
    radial-gradient(circle at top right, rgba(159, 255, 234, 0.12), transparent 34%),
    rgba(255, 255, 255, 0.05);
  display: grid;
  gap: 0.95rem;
}

.chapter-launch-copy {
  display: grid;
  gap: 0.35rem;
}

.chapter-launch-copy h2 {
  margin: 0.15rem 0 0;
}

.chapter-launch-lead {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  max-width: 72ch;
}

.chapter-launch-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.chapter-launch-card {
  min-height: 100%;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  padding: 1rem;
  display: grid;
  gap: 0.65rem;
  align-content: start;
}

.chapter-launch-card.is-selected {
  border-color: rgba(69, 239, 212, 0.42);
  background:
    radial-gradient(circle at top right, rgba(159, 255, 234, 0.16), transparent 42%),
    rgba(255, 255, 255, 0.08);
}

.chapter-launch-card-head {
  display: flex;
  gap: 0.6rem;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.chapter-launch-state {
  display: inline-flex;
  align-items: center;
  padding: 0.38rem 0.62rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.chapter-launch-state.is-ready {
  border-color: rgba(69, 239, 212, 0.34);
  background: rgba(69, 239, 212, 0.12);
  color: #b8fff2;
}

.chapter-launch-title {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.25;
}

.chapter-launch-summary {
  margin: 0;
  color: var(--muted);
  line-height: 1.62;
  min-height: 4.8em;
}

.chapter-launch-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chapter-launch-actions {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
  margin-top: auto;
}

.chapter-launch-btn {
  flex: 1 1 150px;
  justify-content: center;
}

.chapter-study-rail {
  margin: 0.9rem 0 1rem;
  padding: 0.95rem 1rem;
  border-radius: 20px;
  border: 1px solid rgba(159, 255, 234, 0.22);
  background:
    radial-gradient(circle at top right, rgba(159, 255, 234, 0.14), transparent 36%),
    rgba(255, 255, 255, 0.06);
  display: grid;
  gap: 0.8rem;
}

.chapter-study-rail-head {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
}

.chapter-study-rail-copy {
  display: grid;
  gap: 0.35rem;
}

.chapter-study-rail-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 900;
  line-height: 1.3;
}

.chapter-study-rail-summary {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.chapter-study-rail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.chapter-study-rail-status {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.chapter-track-tabs,
.chapter-study-rail-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.chapter-track-tab {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  padding: 0.55rem 0.9rem;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.chapter-track-tab.active {
  border-color: rgba(69, 239, 212, 0.38);
  background: rgba(69, 239, 212, 0.12);
}

.chapter-track-tab:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.study-track-heading {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #9fffea;
}

.study-track-grid {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.study-track-card {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  padding: 1rem;
  display: grid;
  gap: 0.35rem;
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.study-track-card strong {
  font-size: 1.1rem;
}

.study-track-card span:last-child {
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.92rem;
}

.study-track-card:hover,
.study-track-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(69, 239, 212, 0.34);
}

.study-track-card.active {
  border-color: rgba(69, 239, 212, 0.46);
  background:
    radial-gradient(circle at top right, rgba(159, 255, 234, 0.18), transparent 42%),
    rgba(255, 255, 255, 0.08);
}

.study-track-card:disabled {
  opacity: 0.56;
  cursor: not-allowed;
  transform: none;
}

.study-track-kicker {
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9fffea;
}

.study-pack-preview,
.study-section-card,
.study-item-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.06);
}

.study-pack-preview {
  padding: 1rem;
  display: grid;
  gap: 0.85rem;
}

.study-preview-head,
.study-screen-head {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
}

.study-preview-head h2,
.study-screen-head h2 {
  margin: 0.2rem 0 0;
}

.study-preview-copy,
.study-screen-copy {
  display: grid;
  gap: 0.35rem;
  min-width: min(100%, 30rem);
}

.study-preview-summary,
.study-screen-summary {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.study-pill-row,
.study-preview-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.study-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 800;
}

.study-preview-grid,
.study-item-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.study-preview-stat {
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.8rem 0.9rem;
  display: grid;
  gap: 0.3rem;
}

.study-preview-stat strong {
  font-size: 1rem;
}

.study-preview-stat span,
.study-item-copy,
.study-item-subcopy {
  color: var(--muted);
  line-height: 1.55;
}

.study-screen-hero,
.study-screen-sections {
  display: grid;
  gap: 1rem;
}

.study-screen-hero {
  margin-bottom: 1rem;
}

.study-screen-actions,
.study-item-actions {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.study-section-card {
  padding: 1rem;
  display: grid;
  gap: 0.9rem;
}

.study-section-card h3 {
  margin: 0;
}

.study-section-lead {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.study-item-card {
  padding: 0.95rem;
  display: grid;
  gap: 0.65rem;
}

.study-item-kicker {
  margin: 0;
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9fffea;
}

.study-item-title {
  margin: 0;
  font-size: 1rem;
  line-height: 1.35;
}

.study-callout {
  display: grid;
  gap: 0.3rem;
  padding: 0.75rem 0.85rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.study-callout strong {
  font-size: 0.84rem;
}

.study-formula {
  padding: 0.8rem 0.85rem;
  border-radius: 16px;
  border: 1px solid rgba(69, 239, 212, 0.22);
  background: rgba(69, 239, 212, 0.08);
}

.study-list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.4rem;
  color: var(--muted);
}

.study-empty {
  margin: 0;
  color: var(--muted);
}

.chapter-config {
  margin-top: 0.8rem;
  display: grid;
  gap: 0.4rem;
}

.chapter-config label {
  font-weight: 800;
  color: var(--muted);
}

.chapter-config select {
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
  padding: 0.5rem 0.55rem;
  font-family: inherit;
  font-weight: 700;
}

.chapter-config select option {
  color: #0f1f3a;
}

.chapter-status {
  margin: 0;
  min-height: 1.1rem;
}

.download-panel {
  margin-top: 1rem;
  display: grid;
  gap: 0.45rem;
  padding: 1rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
}

body.app-body .download-panel {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 18px;
}

.download-link {
  text-decoration: none;
  text-align: center;
}

.download-link.is-disabled {
  pointer-events: none;
  opacity: 0.55;
}

.legal-link-row {
  margin-top: 0.2rem;
}

.legal-link {
  color: #9fffea;
  font-weight: 800;
  text-decoration: none;
}

.legal-link:hover,
.legal-link:focus-visible {
  text-decoration: underline;
}

.legal-divider {
  margin: 0 0.3rem;
  color: var(--muted);
}

.hud {
  display: grid;
  grid-template-columns: repeat(5, minmax(90px, 1fr));
  gap: 0.45rem;
  margin-bottom: 0.6rem;
}

.hud p {
  margin: 0;
  text-align: center;
  padding: 0.45rem 0.35rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--line);
  font-weight: 900;
  font-size: 0.86rem;
}

body.app-body .hud p {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--line);
}

.progress-track {
  height: 11px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  overflow: hidden;
  margin-bottom: 0.9rem;
}

body.app-body .progress-track {
  background: rgba(255, 255, 255, 0.14);
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #4cffb8, #ffe56e, #ff9b58);
  transition: width 320ms ease;
}

body.app-body .progress-fill {
  background: linear-gradient(90deg, #4cffb8, #ffe56e, #ff9b58);
}

.prompt {
  margin: 0.25rem 0 0.7rem;
  white-space: pre-wrap;
}

.code {
  margin: 0 0 0.8rem;
  padding: 0.7rem;
  border-radius: 12px;
  border: 1px solid rgba(69, 239, 212, 0.45);
  background: linear-gradient(180deg, rgba(4, 11, 24, 0.92), rgba(8, 16, 34, 0.95));
  color: #d7fff6;
  white-space: pre-wrap;
  font-family: 'Consolas', 'Courier New', monospace;
}

body.app-body .code {
  border-color: rgba(69, 239, 212, 0.45);
  background: linear-gradient(180deg, rgba(4, 11, 24, 0.92), rgba(8, 16, 34, 0.95));
  color: #d7fff6;
}

.hidden {
  display: none;
}

.challenge-host {
  display: grid;
  gap: 0.55rem;
}

.option-grid {
  display: grid;
  gap: 0.55rem;
}

.option-btn {
  border: 0;
  border-radius: 12px;
  color: #fff;
  font-family: inherit;
  font-weight: 900;
  text-align: left;
  padding: 0.85rem 0.95rem;
  cursor: pointer;
}

.option-btn:nth-child(4n + 1) {
  background: #ef476f;
}

.option-btn:nth-child(4n + 2) {
  background: #118ab2;
}

.option-btn:nth-child(4n + 3) {
  background: #ffd166;
  color: #3a2a00;
}

.option-btn:nth-child(4n + 4) {
  background: #06d6a0;
  color: #032a1f;
}

.order-list {
  display: grid;
  gap: 0.45rem;
}

.order-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.3rem;
  align-items: center;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.4rem;
}

.order-item button {
  border: 0;
  border-radius: 8px;
  padding: 0.25rem 0.45rem;
  margin-left: 0.25rem;
  font-weight: 800;
}

.arrow-btn {
  width: 34px;
  height: 30px;
  font-size: 0.95rem;
  line-height: 1;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  transition: transform 170ms ease, background 170ms ease;
}

.arrow-btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.28);
}

.arrow-btn:disabled {
  opacity: 0.45;
}

.order-item.moved-up {
  animation: moveUp 210ms ease;
}

.order-item.moved-down {
  animation: moveDown 210ms ease;
}

textarea,
input,
select {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  padding: 0.65rem;
  font-family: inherit;
}

.theory-editor {
  min-height: 230px;
  line-height: 1.5;
  font-size: 1rem;
  resize: vertical;
}

.admin-body {
  place-items: start center;
  padding: 32px 20px 56px;
}

.admin-shell {
  width: min(1180px, 100%);
}

.admin-hero,
.admin-status-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.admin-actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.admin-status {
  margin: 0;
}

.admin-list {
  display: grid;
  gap: 1rem;
}

.admin-empty {
  text-align: center;
}

.admin-entry {
  display: grid;
  gap: 1rem;
}

.admin-entry-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.admin-entry-kicker,
.admin-panel-title,
.admin-table-title {
  margin: 0 0 0.45rem;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.admin-meta-stack {
  display: grid;
  gap: 0.35rem;
  justify-items: end;
}

.admin-status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 86px;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
  font-weight: 900;
}

.admin-status-pill.is-ok {
  background: rgba(57, 217, 138, 0.16);
  border-color: rgba(57, 217, 138, 0.36);
  color: #bbffda;
}

.admin-status-pill.is-bad {
  background: rgba(255, 107, 107, 0.14);
  border-color: rgba(255, 107, 107, 0.34);
  color: #ffd1d1;
}

.admin-entry-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.admin-panel-block {
  min-width: 0;
  padding: 1rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
}

.admin-copy,
.admin-summary {
  margin: 0;
  white-space: pre-wrap;
}

.admin-panel-block > * + * {
  margin-top: 0.7rem;
}

.admin-answer-text {
  margin: 0;
  padding: 0.85rem 0.95rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(4, 11, 24, 0.88);
  color: #f7fbff;
  white-space: pre-wrap;
  font: inherit;
}

.admin-answer-image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.8rem;
}

.admin-image-button {
  display: block;
  width: 100%;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  overflow: hidden;
  cursor: pointer;
}

.admin-inline-image,
.admin-answer-image {
  display: block;
  width: 100%;
  height: auto;
  max-height: 380px;
  object-fit: contain;
  background: rgba(3, 8, 20, 0.96);
}

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

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

.admin-table th,
.admin-table td {
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--line);
  text-align: left;
}

.admin-table th {
  background: rgba(255, 255, 255, 0.08);
}

.admin-image-modal {
  width: min(92vw, 1100px);
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(5, 10, 22, 0.98);
  color: var(--text);
}

.admin-image-modal::backdrop {
  background: rgba(0, 0, 0, 0.76);
}

.admin-image-close {
  margin-left: auto;
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 0.45rem 0.8rem;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.admin-image-preview {
  display: block;
  width: 100%;
  max-height: calc(100vh - 160px);
  margin-top: 0.8rem;
  object-fit: contain;
  border-radius: 16px;
  background: rgba(0, 0, 0, 0.5);
}

.admin-image-caption {
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .admin-hero,
  .admin-status-card,
  .admin-entry-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .admin-meta-stack {
    justify-items: start;
  }

  .admin-entry-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.theory-fill-editor {
  min-height: 150px;
}

.feedback-box {
  margin-top: 0.8rem;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.09);
  min-height: 80px;
  padding: 0.7rem;
}

.feedback-box.ok {
  border-color: var(--ok);
}

.feedback-box.bad {
  border-color: var(--bad);
}

.hint-box {
  margin-top: 0.75rem;
  border-radius: 12px;
  border: 1px solid rgba(162, 206, 255, 0.52);
  background: rgba(85, 150, 255, 0.14);
  min-height: 62px;
  padding: 0.65rem;
}

.hint-box p {
  margin: 0;
  color: #eef6ff;
}

.practice-assist-stack {
  display: grid;
  gap: 0.65rem;
}

.practice-assist-card {
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(7, 17, 34, 0.22);
  padding: 0.7rem 0.8rem;
}

.practice-assist-actions {
  margin-top: 0.6rem;
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.practice-assist-kicker {
  margin: 0 0 0.2rem;
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #9fd0ff;
}

.practice-assist-title {
  margin: 0 0 0.3rem;
  font-weight: 900;
  color: #f7fbff;
}

.practice-assist-list {
  margin: 0.45rem 0 0;
  padding-left: 1.1rem;
  color: #eef6ff;
}

.practice-assist-list li {
  margin: 0.18rem 0;
  line-height: 1.4;
}

.practice-assist-meta {
  margin: 0.35rem 0 0;
  color: #d7ebff;
  line-height: 1.45;
}

.model-answer {
  margin-top: 0.6rem;
  border-top: 1px solid var(--line);
  padding-top: 0.55rem;
}

.review-block {
  margin-top: 0.1rem;
}

.review-line {
  margin: 0.2rem 0;
}

.model-answer p {
  margin: 0.2rem 0;
}

.model-answer-text {
  white-space: pre-wrap;
  line-height: 1.5;
}

.model-answer-text mark {
  background: #ffe27a;
  color: #2b2000;
  border-radius: 4px;
  padding: 0 2px;
}

.review-table-wrap {
  margin-top: 0.45rem;
  overflow-x: auto;
}

.review-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.2rem;
}

.review-table th,
.review-table td {
  border: 1px solid var(--line);
  padding: 0.65rem 0.7rem;
  vertical-align: top;
  text-align: left;
  line-height: 1.45;
}

.review-table th {
  background: rgba(255, 255, 255, 0.08);
  font-weight: 800;
}

.review-table td mark,
.review-table th mark {
  background: #ffe27a;
  color: #2b2000;
  border-radius: 4px;
  padding: 0 2px;
}

.structured-prompt-block {
  margin-bottom: 0.9rem;
}

.math-figure-wrap {
  margin: 0.55rem 0 0.8rem;
  padding: 0.55rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.math-figure-image {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}

.math-figure-caption {
  margin: 0.45rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.45;
}

.review-actions {
  margin-top: 0.55rem;
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.review-btn {
  padding: 0.45rem 0.8rem;
  font-size: 0.85rem;
}

.detail-explanation {
  margin-top: 0.6rem;
  border-top: 1px dashed var(--line);
  padding-top: 0.5rem;
}

.review-chat {
  margin-top: 0.9rem;
}

.review-chat-log {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  max-height: 320px;
  overflow-y: auto;
  padding: 0.2rem 0 0.35rem;
}

.review-chat-msg {
  display: flex;
  width: 100%;
}

.review-chat-msg.user {
  justify-content: flex-end;
}

.review-chat-msg.assistant {
  justify-content: flex-start;
}

.review-chat-bubble {
  max-width: min(82%, 560px);
  border-radius: 18px;
  padding: 0.7rem 0.85rem;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.16);
}

.review-chat-msg.user .review-chat-bubble {
  border-bottom-right-radius: 6px;
  background: linear-gradient(135deg, #78b8ff, #5596ff);
  color: #081b35;
}

.review-chat-msg.assistant .review-chat-bubble {
  border-bottom-left-radius: 6px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.07));
  border: 1px solid rgba(255, 255, 255, 0.09);
}

.review-chat-role {
  margin: 0 0 0.25rem;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.76;
}

.review-chat-bubble .review-line {
  margin: 0.15rem 0;
  line-height: 1.45;
}

.review-chat-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.55rem;
  align-items: end;
  margin-top: 0.55rem;
}

.review-chat-input {
  min-height: 54px;
  max-height: 120px;
  resize: vertical;
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(9, 18, 34, 0.6);
  color: #f7f9ff;
  padding: 0.75rem 0.9rem;
  font: inherit;
}

.review-chat-actions {
  display: flex;
  align-items: flex-end;
}

.review-chat-send {
  min-width: 86px;
  align-self: stretch;
}

.actions-row {
  margin-top: 0.65rem;
  display: flex;
  gap: 0.55rem;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.btn {
  border: 0;
  border-radius: 12px;
  font-family: inherit;
  font-weight: 900;
  padding: 0.7rem 1rem;
  cursor: pointer;
}

body.app-body .btn {
  border: 0;
  border-radius: 12px;
  font-weight: 900;
  padding: 0.7rem 1rem;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.16);
}

.btn-primary {
  background: linear-gradient(90deg, #45efd4, #9fffe9);
  color: #073848;
}

body.app-body .btn-primary {
  background: linear-gradient(90deg, #45efd4, #9fffe9);
  color: #073848;
}

.btn-secondary {
  background: linear-gradient(90deg, #ffd06b, #ffe79f);
  color: #483200;
}

body.app-body .btn-secondary {
  background: linear-gradient(90deg, #ffd06b, #ffe79f);
  color: #483200;
}

.btn-danger {
  background: linear-gradient(90deg, #ff6f6f, #ff9d75);
  color: #390b0b;
}

body.app-body .btn-danger {
  background: linear-gradient(90deg, #ff6f6f, #ff9d75);
  color: #390b0b;
}

.btn-hint {
  background: linear-gradient(90deg, #7fb5ff, #9dd2ff);
  color: #0c2745;
}

body.app-body .btn-hint {
  background: linear-gradient(90deg, #7fb5ff, #9dd2ff);
  color: #0c2745;
}

body.app-body ::placeholder {
  color: rgba(215, 232, 255, 0.68);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@keyframes pop {
  from {
    opacity: 0;
    transform: scale(0.98);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes moveUp {
  from {
    transform: translateY(8px);
  }
  to {
    transform: translateY(0);
  }
}

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

.program-editor {
  min-height: 280px;
  font-family: 'Consolas', 'Courier New', monospace;
  line-height: 1.45;
  border: 1px solid rgba(69, 239, 212, 0.45);
  background:
    linear-gradient(180deg, rgba(2, 14, 28, 0.94), rgba(6, 20, 38, 0.96)),
    repeating-linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0.035) 0px,
      rgba(255, 255, 255, 0.035) 24px,
      rgba(255, 255, 255, 0.012) 24px,
      rgba(255, 255, 255, 0.012) 48px
    );
}

.session-review {
  margin: 1rem 0 1.15rem;
}

.session-review-grid {
  display: grid;
  gap: 0.85rem;
}

.session-review-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.07);
}

.session-card-title {
  margin: 0 0 0.75rem;
  font-weight: 900;
  font-size: 1rem;
}

.session-card-mini {
  margin: 0.45rem 0 0;
  color: var(--muted);
}

.session-metric-grid {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.session-metric-card {
  border-radius: 14px;
  padding: 0.85rem;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.session-metric-card span {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}

.session-metric-card strong {
  font-size: 1.2rem;
}

.session-area-row {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 0.7rem;
}

.session-area-copy {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
}

.session-area-label {
  font-weight: 800;
}

.session-area-meta {
  color: var(--muted);
  font-size: 0.85rem;
}

.session-area-track {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  overflow: hidden;
}

.session-area-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #ffd166, #44efd4);
}

.session-band-grid {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.session-band-pill {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 999px;
  padding: 0.55rem 0.85rem;
  font-weight: 800;
}

.session-band-pill.strong {
  background: rgba(68, 239, 212, 0.16);
}

.session-band-pill.good {
  background: rgba(127, 181, 255, 0.16);
}

.session-band-pill.mid {
  background: rgba(255, 209, 102, 0.18);
  color: #fff3c6;
}

.session-band-pill.weak {
  background: rgba(255, 107, 107, 0.16);
}

.session-recommendation-list {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: 0.5rem;
}

.session-question-list {
  display: grid;
  gap: 0.65rem;
}

.session-question-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.8rem;
  align-items: start;
  border-radius: 14px;
  padding: 0.75rem;
  background: rgba(255, 255, 255, 0.06);
}

.session-question-title,
.session-question-copy {
  margin: 0;
}

.session-question-title {
  font-weight: 900;
  margin-bottom: 0.25rem;
}

.session-question-copy {
  color: var(--muted);
}

.session-question-score {
  font-size: 1rem;
  font-weight: 900;
}

.policy-body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 14%, #2f5ca3 0%, transparent 38%),
    radial-gradient(circle at 82% 24%, #1e6c68 0%, transparent 28%),
    linear-gradient(160deg, var(--bg1), var(--bg2));
  display: block;
}

.policy-shell {
  width: min(960px, 94vw);
  margin: 2rem auto;
}

.policy-card {
  display: grid;
  gap: 1rem;
}

.policy-intro {
  margin: 0;
  color: var(--text);
  line-height: 1.65;
}

.policy-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.policy-link {
  padding: 0.55rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  text-decoration: none;
  font-weight: 800;
}

.policy-link:hover,
.policy-link:focus-visible {
  background: rgba(255, 255, 255, 0.14);
}

.policy-section {
  display: grid;
  gap: 0.55rem;
}

.policy-section h2 {
  margin: 0;
}

.policy-section p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.policy-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.7;
}

.policy-note {
  color: #ffd166;
  font-weight: 800;
}

.policy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 0.5rem;
}

@media (max-width: 760px) {
  .site-nav {
    grid-template-columns: 1fr;
    justify-items: stretch;
  }

  .landing-hero {
    grid-template-columns: 1fr;
  }

  .site-nav-brand,
  .site-nav-links,
  .site-nav-actions {
    justify-content: flex-start;
  }

  .site-nav-actions {
    flex-wrap: wrap;
  }

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

  .shell-topbar {
    grid-template-columns: 1fr;
  }

  .auth-panel {
    justify-items: start;
    text-align: left;
  }

  .auth-profile {
    justify-items: start;
  }

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

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

  .auth-value-grid {
    grid-template-columns: 1fr;
  }

  .study-track-grid,
  .chapter-launch-grid,
  .chapter-launch-metric-grid,
  .study-preview-grid,
  .study-item-grid {
    grid-template-columns: 1fr;
  }

  .chapter-study-rail-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .study-preview-head,
  .study-screen-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .hud {
    grid-template-columns: repeat(2, minmax(100px, 1fr));
  }

  .actions-row {
    justify-content: stretch;
  }

  .actions-row .btn {
    flex: 1;
  }

  .chapter-launch-actions .btn {
    flex: 1 1 100%;
  }

  .session-metric-grid,
  .session-band-grid {
    grid-template-columns: 1fr;
  }

  .auth-compact-grid {
    grid-template-columns: 1fr;
  }

}

/* Final contrast repair overrides */

:root {
  --contrast-ink: #172433;
  --contrast-ink-2: #31475b;
  --contrast-muted: #536474;
  --contrast-muted-soft: #677788;
  --contrast-paper: #fffdf8;
  --contrast-paper-soft: rgba(255, 247, 235, 0.78);
  --contrast-border: rgba(23, 36, 51, 0.14);
  --contrast-border-strong: rgba(23, 36, 51, 0.2);
}

body.landing-body,
body.policy-body {
  color: var(--contrast-ink) !important;
}

body.app-body,
body.admin-body {
  color: var(--contrast-paper) !important;
}

body.landing-body .card,
body.landing-body .hero-study-card,
body.landing-body .hero-metric-card,
body.landing-body .landing-feature-card,
body.landing-body .subject-card,
body.landing-body .trust-card,
body.landing-body .compare-card,
body.landing-body .landing-flow-step,
body.app-body .card,
body.app-body .chapter-launch-panel,
body.app-body .study-track-card,
body.app-body .chapter-launch-card,
body.app-body .workspace-hero-stat,
body.app-body .practice-assist-card,
body.app-body .review-block,
body.app-body .review-scorecard,
body.app-body .review-callout,
body.app-body .model-answer,
body.app-body .detail-explanation,
body.app-body .study-section-card,
body.app-body .study-item-card,
body.app-body .session-review-card,
body.admin-body .card,
body.admin-body .admin-entry,
body.admin-body .admin-panel-block,
body.policy-body .policy-card {
  --text: var(--contrast-ink) !important;
  --muted: var(--contrast-muted) !important;
  color: var(--contrast-ink) !important;
  background: linear-gradient(180deg, rgba(255, 253, 248, 0.97), rgba(246, 239, 229, 0.94)) !important;
  border-color: var(--contrast-border) !important;
}

body.app-body .site-nav,
body.admin-body .site-nav,
body.app-body .auth-session,
body.admin-body .admin-image-modal,
body.app-body .code,
body.admin-body .admin-answer-text {
  --text: var(--contrast-paper) !important;
  --muted: var(--contrast-paper-soft) !important;
  color: var(--contrast-paper) !important;
}

body.app-body .site-nav,
body.admin-body .site-nav {
  background: linear-gradient(180deg, rgba(15, 24, 34, 0.97), rgba(18, 29, 41, 0.92)) !important;
  border-color: rgba(255, 245, 232, 0.14) !important;
}

body.app-body .code,
body.admin-body .admin-answer-text,
body.admin-body .admin-image-modal {
  background: rgba(17, 26, 37, 0.96) !important;
  border-color: rgba(255, 245, 232, 0.12) !important;
}

body.app-body .lead,
body.app-body .mini,
body.app-body .section-copy,
body.app-body .chapter-status,
body.app-body .chapter-launch-summary,
body.app-body .chapter-launch-lead,
body.app-body .chapter-study-rail-summary,
body.app-body .chapter-study-rail-status,
body.app-body .study-section-lead,
body.app-body .study-empty,
body.app-body .review-line,
body.app-body .review-score-copy,
body.app-body .study-item-copy,
body.app-body .study-item-subcopy,
body.admin-body .lead,
body.admin-body .mini,
body.admin-body .admin-copy,
body.admin-body .admin-summary,
body.policy-body .lead,
body.policy-body .mini,
body.policy-body .policy-intro,
body.policy-body .policy-section p,
body.policy-body .policy-list,
body.landing-body .lead,
body.landing-body .mini,
body.landing-body .section-copy,
body.landing-body .landing-feature-card p,
body.landing-body .subject-card p,
body.landing-body .trust-card p,
body.landing-body .compare-list,
body.landing-body .landing-flow-step p {
  color: var(--muted) !important;
}

body.app-body h1,
body.app-body h2,
body.app-body h3,
body.app-body h4,
body.admin-body h1,
body.admin-body h2,
body.admin-body h3,
body.admin-body h4,
body.policy-body h1,
body.policy-body h2,
body.policy-body h3,
body.policy-body h4,
body.landing-body h1,
body.landing-body h2,
body.landing-body h3,
body.landing-body h4 {
  color: var(--text) !important;
}

.site-nav .badge,
.site-nav-title,
.site-nav-subtitle,
.site-nav-link,
.auth-status,
.auth-session-label,
.auth-session-name,
.auth-session-email {
  color: var(--text) !important;
}

.btn-primary {
  color: var(--contrast-paper) !important;
}

.btn-secondary,
.btn-hint,
.btn-danger,
.chapter-track-tab,
.option-btn,
.order-item,
.match-row,
.practice-assist-meta,
.study-callout,
.study-formula,
.policy-link,
.auth-pill,
.study-pill,
.trust-pill,
.session-band-pill,
.session-question-row {
  color: var(--contrast-ink) !important;
  border-color: var(--contrast-border-strong) !important;
}

.btn-secondary,
.chapter-track-tab,
.policy-link {
  background: rgba(255, 255, 255, 0.92) !important;
}

.btn-hint {
  background: rgba(203, 225, 219, 0.72) !important;
}

.btn-danger {
  background: rgba(248, 221, 225, 0.84) !important;
}

body.app-body .site-nav .btn-secondary,
body.admin-body .site-nav .btn-secondary {
  color: var(--contrast-paper) !important;
  background: rgba(255, 255, 255, 0.08) !important;
  border-color: rgba(255, 245, 232, 0.16) !important;
}

input,
select,
textarea,
.challenge-input,
.answer-input,
.answer-editor {
  color: var(--contrast-ink) !important;
  background: rgba(255, 255, 255, 0.94) !important;
  border-color: var(--contrast-border-strong) !important;
}

.option-btn.is-selected {
  color: var(--contrast-ink) !important;
  background: rgba(203, 225, 219, 0.78) !important;
  border-color: rgba(41, 93, 98, 0.28) !important;
}

.review-table th,
.review-table td,
.admin-table th,
.admin-table td {
  color: var(--contrast-ink) !important;
}

.model-answer-text mark,
.review-table mark {
  color: var(--contrast-ink) !important;
  background: rgba(201, 119, 63, 0.22) !important;
}

.landing-footer,
.landing-footer a {
  color: var(--contrast-ink) !important;
}