/* Talkhees luxury layer — depth, gold trim, refined motion */

body.concept-ui {
  -webkit-font-smoothing: antialiased;
}

body.concept-ui .primary,
body.concept-ui .form-primary {
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

body.concept-ui .primary:hover,
body.concept-ui .form-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(10, 36, 31, 0.18);
}

body.concept-ui .subject-card,
body.concept-ui .chapter-card,
body.concept-ui .reading-page {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

body.concept-ui .subject-card:hover,
body.concept-ui .chapter-card:hover {
  box-shadow: 0 16px 36px rgba(10, 36, 31, 0.1);
}

body.concept-ui h1 em::after {
  background: linear-gradient(90deg, var(--th-lime), var(--th-lime-soft));
}

body.concept-ui .library-hero h1,
body.concept-ui .hero h1 {
  letter-spacing: -0.5px;
}

body.concept-ui .concept-bottom-nav {
  backdrop-filter: blur(8px);
}

body.concept-ui .install-trigger {
  background: linear-gradient(180deg, var(--th-lime), #c8e06a);
  border: 1px solid rgba(154, 123, 60, 0.25);
  color: var(--th-green-deep);
  font-weight: 600;
}

body.concept-ui .app-dialog {
  border-radius: var(--th-radius-shell, 24px);
  border-color: #e8ece4;
  box-shadow: var(--th-card-shadow, 0 22px 55px rgba(10, 36, 31, 0.15));
}

body.concept-ui .app-dialog::backdrop {
  background: rgba(10, 36, 31, 0.55);
}

body.concept-ui.dark {
  --th-cream-warm: #121f1b;
  --th-cream: #1a2b25;
  --th-line: #3a5248;
}

body.concept-ui.dark::before,
body.concept-ui.dark::after {
  opacity: 0.15;
}

body.concept-ui.dark .concept-bottom-nav {
  background: linear-gradient(180deg, #0a1815, #122820);
}

body.concept-ui.dark .subject-card,
body.concept-ui.dark .auth-card {
  background: var(--paper);
}

@media (display-mode: standalone) {
  body.concept-ui.library-body .concept-topbar {
    padding-top: calc(16px + env(safe-area-inset-top));
  }
}