:root {
  --bg-primary: #f9f7f2;
  --bg-secondary: #efe9dd;
  --bg-tertiary: #e3dcce;
  --bg-dark: #0a192f;
  --bg-dark-surface: #102342;
  --ink: #0d1b2a;
  --ink-light: #1b263b;
  --muted: #546477;
  --muted-light: #8896a6;
  --saffron: #e85d04;
  --saffron-dark: #b84300;
  --saffron-light: #ffedd5;
  --gold: #f4a261;
  --gold-rich: #e9c46a;
  --white: #ffffff;
  --border: rgba(13, 27, 42, 0.14);
  --border-strong: rgba(13, 27, 42, 0.28);
  --border-light: rgba(255, 255, 255, 0.18);
  --shadow-sm: 0 4px 16px rgba(10, 25, 47, 0.08);
  --shadow-md: 0 16px 40px rgba(10, 25, 47, 0.12);
  --shadow-lg: 0 28px 70px rgba(10, 25, 47, 0.24);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  color: var(--ink);
  background: var(--bg-primary);
  font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

button, input {
  font: inherit;
}

button {
  cursor: pointer;
}

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

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5vw;
  background: rgba(249, 247, 242, 0.94);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-crest {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: var(--saffron);
  color: var(--white);
  font-family: "Playfair Display", serif;
  font-size: 24px;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(232, 93, 4, 0.35);
  transition: transform var(--transition);
}

.brand:hover .brand-crest {
  transform: rotate(-6deg) scale(1.06);
}

.brand-info strong {
  display: block;
  font-family: "Playfair Display", serif;
  font-size: 20px;
  line-height: 1.1;
  color: var(--ink);
}

.brand-info small {
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 700;
}

.nav-menu {
  display: flex;
  gap: 32px;
  font-size: 13.5px;
  font-weight: 600;
}

.nav-menu a {
  position: relative;
  padding: 6px 0;
  color: var(--ink-light);
  transition: color var(--transition);
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--saffron);
  transition: width var(--transition);
}

.nav-menu a:hover {
  color: var(--saffron);
}

.nav-menu a:hover::after {
  width: 100%;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tour-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border-strong);
  background: var(--white);
  color: var(--ink);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
  transition: var(--transition);
}

.tour-toggle-btn:hover {
  border-color: var(--saffron);
  color: var(--saffron);
  transform: translateY(-2px);
}

.tour-toggle-btn.playing {
  background: var(--saffron);
  color: var(--white);
  border-color: var(--saffron);
}

.action-cta, .btn-primary {
  border: 0;
  background: var(--ink);
  color: var(--white);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font-size: 13px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(10, 25, 47, 0.15);
}

.action-cta:hover, .btn-primary:hover {
  background: var(--saffron);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(232, 93, 4, 0.32);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  min-height: 600px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  padding: 85px 7vw 90px;
  overflow: hidden;
  background: var(--bg-dark);
  color: var(--bg-primary);
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 550px;
  height: 550px;
  background: radial-gradient(circle, rgba(232, 93, 4, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  font-size: 11px;
  letter-spacing: 0.18em;
  font-weight: 800;
  color: var(--saffron);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.glow-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--saffron);
  box-shadow: 0 0 0 rgba(232, 93, 4, 0.7);
  animation: glowPulse 2s infinite;
}

@keyframes glowPulse {
  0% { box-shadow: 0 0 0 0 rgba(232, 93, 4, 0.7); }
  70% { box-shadow: 0 0 0 8px rgba(232, 93, 4, 0); }
  100% { box-shadow: 0 0 0 0 rgba(232, 93, 4, 0); }
}

.hero h1 {
  font-family: "Playfair Display", serif;
  font-size: clamp(52px, 6vw, 82px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.hero h1 em {
  color: var(--gold-rich);
  font-style: normal;
}

.hero-content > p {
  max-width: 590px;
  font-size: 16.5px;
  color: #c9d6df;
  line-height: 1.65;
}

.hero-buttons {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.btn-primary {
  background: var(--saffron);
  color: var(--white);
  padding: 13px 24px;
}

.btn-primary:hover {
  background: var(--gold-rich);
  color: var(--ink);
}

.btn-secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--bg-primary);
  font-weight: 700;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
}

.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
  background: rgba(244, 162, 97, 0.1);
}

.btn-tertiary {
  color: #c9d6df;
  font-size: 13.5px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  transition: color var(--transition);
}

.btn-tertiary:hover {
  color: var(--gold-rich);
}

/* Hero Pictorial Illustration — Colonnade & Celestial Sun */
.hero-illustration {
  height: 420px;
  position: relative;
  overflow: hidden;
  border-radius: 210px 210px 8px 8px;
  background: linear-gradient(165deg, #162a45 0%, #0c1829 60%, #060e18 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

.hero-illustration::before {
  content: "";
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(circle at 75% 25%, rgba(244, 162, 97, 0.25) 0%, transparent 60%),
    repeating-linear-gradient(115deg, transparent 0 26px, rgba(255, 255, 255, 0.04) 27px 28px);
  pointer-events: none;
}

.ambient-glow {
  position: absolute;
  top: 35px;
  right: 15%;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(232, 93, 4, 0.4) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(10px);
}

.celestial-sun {
  position: absolute;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ffd166 0%, #f4a261 50%, #e85d04 100%);
  top: 50px;
  right: 18%;
  box-shadow: 0 0 45px rgba(244, 162, 97, 0.5);
}

.orbit-ring {
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 2px dashed rgba(255, 255, 255, 0.25);
  top: 15px;
  right: 10%;
  animation: rotateOrbit 50s linear infinite;
}

@keyframes rotateOrbit {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.palace-colonnade {
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 12px;
  pointer-events: none;
}

.cusped-arch {
  border: 14px solid rgba(249, 247, 242, 0.92);
  border-bottom: 0;
}

.arch-center {
  width: 170px;
  height: 250px;
  border-radius: 90px 90px 0 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.arch-left, .arch-right {
  width: 90px;
  height: 170px;
  border-radius: 50px 50px 0 0;
  opacity: 0.65;
  border-width: 10px;
}

.temple-plinth {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 14px;
  background: rgba(232, 93, 4, 0.85);
  border-top: 1px solid rgba(255, 255, 255, 0.25);
}

.hero-stamp {
  position: absolute;
  left: 28px;
  bottom: 24px;
  color: #fff6e8;
  font-size: 11px;
  letter-spacing: 0.24em;
  font-weight: 700;
  z-index: 10;
}

/* ==========================================================================
   Metrics Ribbon
   ========================================================================== */
.metrics-ribbon {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 7vw;
  background: var(--bg-secondary);
}

.metric-item {
  padding: 0 24px;
  border-right: 1px solid var(--border);
}

.metric-item:first-child {
  padding-left: 0;
}

.metric-item:last-child {
  border-right: 0;
}

.metric-item strong {
  display: block;
  font-family: "Playfair Display", serif;
  font-size: 32px;
  line-height: 1.1;
  color: var(--ink);
}

.metric-item span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

/* ==========================================================================
   Common Section Styles
   ========================================================================== */
.explore-section, .routes-section, .chronology-section, .about-section {
  padding: 90px 7vw;
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  align-items: flex-end;
  margin-bottom: 36px;
}

.sub-label {
  font-size: 11px;
  letter-spacing: 0.18em;
  font-weight: 800;
  color: var(--saffron);
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}

.section-header h2 {
  font-family: "Playfair Display", serif;
  font-size: clamp(38px, 4.4vw, 54px);
  margin: 0;
  line-height: 1.05;
  color: var(--ink);
}

.section-header p {
  max-width: 530px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.6;
}

/* ==========================================================================
   Controls Toolbar
   ========================================================================== */
.controls-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.search-box {
  width: min(390px, 100%);
  position: relative;
}

.search-symbol {
  position: absolute;
  left: 15px;
  top: 12px;
  font-size: 20px;
  color: var(--muted);
  pointer-events: none;
}

.search-box input {
  width: 100%;
  border: 1px solid var(--border-strong);
  background: var(--white);
  border-radius: var(--radius-full);
  padding: 12px 42px 12px 44px;
  outline: 0;
  font-size: 13px;
  transition: var(--transition);
}

.search-box input:focus {
  border-color: var(--saffron);
  box-shadow: 0 0 0 3px rgba(232, 93, 4, 0.12);
}

.btn-clear {
  position: absolute;
  right: 14px;
  top: 10px;
  background: none;
  border: 0;
  font-size: 18px;
  color: var(--muted);
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
}

.btn-clear.hidden {
  display: none;
}

.filter-controls-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
}

.movement-filters, .region-pills {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
}

.group-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-right: 4px;
}

.filter-btn {
  border: 1px solid var(--border);
  background: var(--white);
  border-radius: var(--radius-full);
  padding: 8px 14px;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink);
  transition: var(--transition);
}

.filter-btn.active, .filter-btn:hover {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}

.pill-btn {
  border: 1px solid var(--border);
  background: transparent;
  border-radius: var(--radius-sm);
  padding: 5px 10px;
  font-size: 10px;
  font-weight: 700;
  color: var(--muted);
  transition: var(--transition);
}

.pill-btn.active, .pill-btn:hover {
  background: var(--bg-tertiary);
  color: var(--ink);
  border-color: var(--border-strong);
}

/* ==========================================================================
   Atlas Layout: Map & Inspector
   ========================================================================== */
.atlas-layout {
  display: grid;
  grid-template-columns: 1.45fr 0.85fr;
  gap: 22px;
  align-items: stretch;
}

.map-viewport {
  position: relative;
  min-height: 600px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #d6ded7;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

#map {
  width: 100%;
  height: 600px;
}

.map-action-bar {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 500;
  display: flex;
  gap: 8px;
}

.map-control-btn {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 11px;
  font-weight: 700;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
}

.map-control-btn:hover {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}

.map-btn-accent {
  background: var(--saffron);
  color: var(--white);
  border-color: var(--saffron);
}

.map-btn-accent:hover {
  background: var(--saffron-dark);
}

.map-footer-note {
  position: absolute;
  bottom: 12px;
  left: 12px;
  z-index: 500;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 10px;
  color: var(--muted);
  border: 1px solid var(--border);
  display: flex;
  gap: 14px;
  align-items: center;
}

.map-tooltip-hint {
  color: var(--saffron);
  font-weight: 600;
}

/* Custom Numbered Pins */
.custom-pin-wrap {
  background: transparent;
  border: 0;
}

.custom-pin {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 2px solid var(--white);
  border-radius: 50%;
  background: var(--ink);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(10, 25, 47, 0.4);
  font-size: 12px;
  font-weight: 800;
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.custom-pin.active {
  background: var(--saffron);
  transform: scale(1.22);
  box-shadow: 0 0 0 5px rgba(232, 93, 4, 0.35), 0 4px 16px rgba(0, 0, 0, 0.45);
  z-index: 999 !important;
}

.custom-pin-wrap:hover .custom-pin {
  background: var(--saffron-dark);
  transform: scale(1.16);
}

/* Inspector Card */
.inspector-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 600px;
  box-shadow: var(--shadow-sm);
}

.inspector-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-primary);
}

.site-index-badge {
  font-family: "Playfair Display", serif;
  font-size: 24px;
  font-weight: 700;
  color: var(--saffron);
}

.badge-cluster {
  display: flex;
  gap: 6px;
  align-items: center;
}

.region-tag {
  font-size: 9px;
  letter-spacing: 0.1em;
  font-weight: 800;
  text-transform: uppercase;
  padding: 4px 7px;
  background: var(--bg-secondary);
  color: var(--muted);
  border-radius: 3px;
}

.movement-tag {
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 5px 9px;
  border: 1px solid var(--border-strong);
  border-radius: 3px;
  background: var(--white);
  color: var(--ink);
}

.inspector-media {
  position: relative;
  margin: 16px 20px 0;
  height: 195px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #f4a261, #e85d04);
  overflow: hidden;
}

.inspector-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.inspector-media:hover img {
  transform: scale(1.04);
}

.inspector-media span {
  color: #fff4e6;
  font-size: 64px;
  font-family: "Playfair Display", serif;
}

.media-controls {
  position: absolute;
  inset: 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 8px;
  background: linear-gradient(0deg, rgba(10, 25, 47, 0.7) 0%, transparent 60%);
}

.btn-expand {
  background: rgba(10, 25, 47, 0.85);
  border: 0;
  color: var(--white);
  font-size: 10px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 3px;
  transition: background var(--transition);
}

.btn-expand:hover {
  background: var(--saffron);
}

.source-link {
  max-width: 70%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding: 4px 8px;
  background: rgba(10, 25, 47, 0.85);
  color: var(--white);
  font-size: 10px;
  border-radius: 3px;
  transition: background var(--transition);
}

.source-link:hover {
  background: var(--saffron);
}

.inspector-body {
  padding: 18px 20px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.location-era {
  font-size: 11px;
  color: var(--saffron);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.inspector-body h3 {
  font-family: "Playfair Display", serif;
  font-size: 34px;
  line-height: 1.05;
  margin: 6px 0 4px;
  color: var(--ink);
}

.style-subtitle {
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 12px;
}

/* Tabs */
.detail-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.tab-button {
  background: transparent;
  border: 0;
  padding: 6px 10px;
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  position: relative;
  transition: color var(--transition);
}

.tab-button.active {
  color: var(--saffron);
}

.tab-button.active::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--saffron);
}

.tab-content {
  display: none;
  min-height: 90px;
}

.tab-content.active {
  display: block;
}

.tab-content p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.content-box {
  font-size: 12.5px;
  color: var(--ink);
  background: var(--bg-primary);
  padding: 10px 12px;
  border-left: 3px solid var(--saffron);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  line-height: 1.5;
}

.artworks-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 12px;
  color: var(--ink);
}

.artworks-checklist li {
  position: relative;
  padding-left: 14px;
  line-height: 1.4;
}

.artworks-checklist li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--saffron);
  font-weight: bold;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}

.tag-cloud span {
  background: var(--bg-secondary);
  border-radius: var(--radius-full);
  padding: 4px 9px;
  font-size: 10px;
  font-weight: 600;
  color: var(--ink-light);
}

.inspector-footer {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.site-stepper {
  display: flex;
  gap: 12px;
}

.step-btn {
  border: 0;
  background: none;
  color: var(--saffron);
  font-weight: 800;
  font-size: 13px;
  padding: 4px 0;
  transition: transform var(--transition), color var(--transition);
}

.step-btn:hover {
  color: var(--saffron-dark);
  transform: translateX(2px);
}

#prevSiteBtn:hover {
  transform: translateX(-2px);
}

.btn-modal-open {
  background: var(--bg-secondary);
  border: 1px solid var(--border-strong);
  color: var(--ink);
  font-size: 11px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.btn-modal-open:hover {
  background: var(--saffron);
  color: var(--white);
  border-color: var(--saffron);
}

/* ==========================================================================
   Directory Cards Grid
   ========================================================================== */
.directory-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin: 60px 0 20px;
}

.directory-header h2 {
  font-family: "Playfair Display", serif;
  margin: 4px 0 0;
  font-size: 34px;
}

.directory-count {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
}

.site-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.catalogue-card {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-sm);
  padding: 16px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 14px;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
}

.catalogue-card:hover {
  background: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(10, 25, 47, 0.08);
  border-color: var(--saffron);
}

.catalogue-card.active-card {
  background: var(--white);
  border: 1.5px solid var(--saffron);
  box-shadow: 0 8px 24px rgba(232, 93, 4, 0.15);
}

.card-num {
  font-family: "Playfair Display", serif;
  color: var(--saffron);
  font-size: 20px;
  font-weight: 700;
  min-width: 24px;
}

.card-content h4 {
  margin: 0;
  font-family: "Playfair Display", serif;
  font-size: 18px;
  color: var(--ink);
  line-height: 1.2;
}

.card-content p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.card-movement {
  display: inline-block;
  font-size: 9px;
  text-transform: uppercase;
  color: var(--muted-light);
  letter-spacing: 0.05em;
  margin-top: 3px;
}

.card-arrow {
  color: var(--muted-light);
  font-size: 16px;
  transition: transform var(--transition), color var(--transition);
}

.catalogue-card:hover .card-arrow {
  color: var(--saffron);
  transform: translateX(3px);
}

/* ==========================================================================
   Geographic Influence Routes (CO1)
   ========================================================================== */
.routes-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.routes-deck {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.route-panel {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  gap: 18px;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.03);
}

.route-panel:hover {
  transform: translateY(-3px);
  border-color: var(--saffron);
  box-shadow: var(--shadow-sm);
}

.route-panel.active-route {
  border: 2px solid var(--gold-rich);
  background: #fffdf9;
}

.route-badge {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--ink);
  color: var(--gold-rich);
  font-family: "Playfair Display", serif;
  font-size: 18px;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.route-info {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.route-movement-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 800;
  color: var(--saffron);
}

.route-info h3 {
  font-family: "Playfair Display", serif;
  font-size: 22px;
  margin: 4px 0 8px;
  color: var(--ink);
}

.route-info p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.55;
  margin-bottom: 12px;
}

.route-waypoints {
  background: var(--bg-primary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 700;
  color: var(--ink);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 14px;
}

.route-waypoints span {
  color: var(--saffron);
}

.route-plot-btn {
  align-self: flex-start;
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--ink);
  font-size: 11px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.route-plot-btn:hover {
  background: var(--saffron);
  color: var(--white);
  border-color: var(--saffron);
}

/* ==========================================================================
   Chronology / Timeline
   ========================================================================== */
.chronology-section {
  background: var(--bg-dark);
  color: var(--bg-primary);
}

.chronology-section .sub-label {
  color: var(--gold-rich);
}

.chronology-section .section-header h2 {
  color: var(--bg-primary);
}

.chronology-section .section-header p {
  color: #c9d6df;
}

.timeline-stream {
  max-width: 950px;
  margin: auto;
}

.stream-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  padding: 32px 0;
  border-top: 1px solid var(--border-light);
  cursor: pointer;
  transition: background var(--transition);
}

.stream-card:hover {
  background: rgba(255, 255, 255, 0.03);
}

.stream-index {
  color: var(--gold-rich);
  font-family: "Playfair Display", serif;
  font-size: 26px;
  font-weight: 700;
}

.stream-title-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  flex-wrap: wrap;
}

.stream-title-row h3 {
  font-family: "Playfair Display", serif;
  font-size: 26px;
  font-weight: 600;
  color: var(--bg-primary);
}

.era-tag {
  font-size: 11px;
  color: var(--gold-rich);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stream-card p {
  color: #b0c0ce;
  margin: 8px 0 10px;
  max-width: 680px;
  font-size: 14px;
}

.site-breadcrumb {
  font-size: 11px;
  color: #8da4b8;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.site-breadcrumb span {
  color: #d8e4ee;
  font-weight: 500;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-section {
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 70px;
  align-items: center;
}

.about-narrative h2 {
  font-family: "Playfair Display", serif;
  font-size: 56px;
  line-height: 1.02;
  margin: 12px 0 20px;
  color: var(--ink);
}

.about-narrative p {
  max-width: 670px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
  margin-bottom: 12px;
}

.author-academic-card {
  background: var(--bg-secondary);
  border-left: 3px solid var(--saffron);
  padding: 12px 16px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin-top: 20px;
  display: inline-block;
  font-size: 13px;
  color: var(--ink);
}

.author-academic-card span {
  color: var(--muted);
}

.author-academic-card strong {
  color: var(--ink);
}

.about-seal {
  width: 210px;
  height: 210px;
  border: 2px solid var(--border);
  border-radius: 50%;
  display: grid;
  place-items: center;
  text-align: center;
  font-family: "Playfair Display", serif;
  transform: rotate(-8deg);
  transition: transform 0.4s ease;
  background: var(--bg-secondary);
}

.about-seal:hover {
  transform: rotate(0deg) scale(1.04);
}

.seal-devanagari {
  font-size: 64px;
  line-height: 0.8;
  color: var(--ink);
}

.about-seal small {
  font: 700 11px "Plus Jakarta Sans", sans-serif;
  letter-spacing: 0.22em;
  color: var(--saffron);
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
  padding: 34px 7vw;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
  background: var(--bg-primary);
}

.footer-branding strong {
  color: var(--ink);
  margin-right: 14px;
  font-family: "Playfair Display", serif;
  font-size: 15px;
}

.footer-attribution {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.author-credit-tag {
  color: var(--saffron);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.02em;
  background: var(--bg-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
}

.course-meta-tag {
  color: var(--muted);
  font-weight: 500;
}

/* ==========================================================================
   Modal Dialog
   ========================================================================== */
.modal-overlay.hidden {
  display: none;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 20px;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 25, 47, 0.76);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-dialog {
  position: relative;
  width: min(840px, 94vw);
  max-height: 88vh;
  overflow-y: auto;
  background: var(--white);
  padding: 38px 42px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  animation: modalEnter 0.26s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes modalEnter {
  from { opacity: 0; transform: scale(0.96) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.btn-close-modal {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-primary);
  font-size: 22px;
  color: var(--ink);
  display: grid;
  place-items: center;
  transition: var(--transition);
}

.btn-close-modal:hover {
  background: var(--saffron);
  color: var(--white);
  border-color: var(--saffron);
}

.dialog-header {
  display: flex;
  align-items: center;
  gap: 20px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 20px;
  margin-bottom: 24px;
}

.dialog-index-num {
  font-family: "Playfair Display", serif;
  font-size: 58px;
  color: var(--saffron);
  line-height: 1;
  font-weight: 700;
}

.dialog-movement {
  font-size: 11px;
  letter-spacing: 0.16em;
  font-weight: 800;
  color: var(--saffron);
}

.dialog-title-meta h2 {
  font-family: "Playfair Display", serif;
  font-size: 38px;
  line-height: 1.05;
  margin: 4px 0;
  color: var(--ink);
}

.dialog-location {
  font-size: 13px;
  color: var(--muted);
  font-weight: 600;
}

.dialog-body-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 30px;
  margin-bottom: 28px;
}

.dialog-main-col h3 {
  font-family: "Playfair Display", serif;
  font-size: 20px;
  color: var(--ink);
  margin: 18px 0 8px;
}

.dialog-main-col h3:first-child {
  margin-top: 0;
}

.dialog-main-col p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.dialog-artworks-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 6px;
}

.dialog-artworks-list li {
  font-size: 13px;
  color: var(--ink);
  padding-left: 18px;
  position: relative;
  line-height: 1.45;
}

.dialog-artworks-list li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--gold-rich);
  font-size: 10px;
}

.dialog-side-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.dialog-media-frame {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
}

.dialog-media-frame img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.dialog-media-frame a {
  display: block;
  font-size: 11px;
  color: var(--muted);
  padding: 6px 10px;
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  text-align: right;
  font-weight: 600;
}

.dialog-media-frame a:hover {
  color: var(--saffron);
}

.dialog-craft-box {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.dialog-craft-box h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--saffron);
  margin-bottom: 6px;
}

.dialog-craft-box p {
  font-size: 12px;
  color: var(--ink);
  line-height: 1.5;
}

.dialog-tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.dialog-tags-container span {
  background: var(--bg-secondary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-light);
}

.dialog-nav-bar {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  padding-top: 18px;
}

.dialog-nav-btn {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.dialog-nav-btn:hover {
  background: var(--bg-secondary);
  border-color: var(--ink);
}

.dialog-nav-btn.primary {
  background: var(--saffron);
  color: var(--white);
  border: 0;
  padding: 8px 18px;
}

.dialog-nav-btn.primary:hover {
  background: var(--saffron-dark);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1024px) {
  .atlas-layout {
    grid-template-columns: 1fr;
  }
  .site-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .routes-deck {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .nav-menu {
    display: none;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 45px;
    padding-top: 60px;
    padding-bottom: 70px;
  }
  .hero-illustration {
    height: 330px;
  }
  .section-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }
  .about-section {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-seal {
    margin: 0 auto;
  }
  .dialog-body-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .topbar {
    padding: 0 16px;
    height: 68px;
  }
  .tour-toggle-btn .tour-text {
    display: none;
  }
  .hero, .explore-section, .routes-section, .chronology-section, .about-section {
    padding-left: 18px;
    padding-right: 18px;
    padding-top: 50px;
    padding-bottom: 55px;
  }
  .metrics-ribbon {
    grid-template-columns: 1fr 1fr;
    padding: 20px 18px;
    gap: 18px;
  }
  .metric-item {
    padding: 0;
    border: 0;
  }
  .movement-filters, .region-pills {
    justify-content: flex-start;
  }
  .site-cards-grid {
    grid-template-columns: 1fr;
  }
  .stream-card {
    grid-template-columns: 50px 1fr;
  }
  .stream-title-row h3 {
    font-size: 20px;
  }
  .modal-dialog {
    padding: 26px 18px;
  }
  .dialog-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .dialog-index-num {
    font-size: 42px;
  }
  .dialog-title-meta h2 {
    font-size: 28px;
  }
  footer {
    padding: 24px 18px;
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}