/* ============================================================
   DESIGN TOKENS — Andean Explorer palette
   Inspired by: Altiplano earth, Andean sky, deep lake blue
   ============================================================ */
:root,
[data-theme='light'] {
  --color-bg: #f5f3ee;
  --color-surface: #f8f6f1;
  --color-surface-2: #faf9f6;
  --color-surface-offset: #edeae2;
  --color-surface-offset-2: #e5e2d8;
  --color-surface-dynamic: #d8d4c8;
  --color-divider: #d0ccbf;
  --color-border: #c8c4b6;

  --color-text: #231f15;
  --color-text-muted: #746e5c;
  --color-text-faint: #b0a990;
  --color-text-inverse: #f8f6f1;

  /* Titicaca deep blue primary */
  --color-primary: #1a4a6e;
  --color-primary-hover: #0f3555;
  --color-primary-active: #082440;
  --color-primary-highlight: #c8d9e8;

  /* Andean gold accent */
  --color-accent: #c98a28;
  --color-accent-hover: #a86f18;
  --color-accent-highlight: #f0e0c0;

  /* Route colors */
  --route-0: #e8834a;
  --route-1: #4a9fd4;
  --route-2: #7ac47a;

  --color-success: #3d7a3d;
  --color-warning: #9e5a18;
  --color-error: #9e2a2a;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 3px rgba(35, 31, 21, 0.08);
  --shadow-md: 0 4px 14px rgba(35, 31, 21, 0.10);
  --shadow-lg: 0 12px 36px rgba(35, 31, 21, 0.14);

  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --font-display: 'Zodiak', 'Georgia', serif;
  --font-body: 'Cabinet Grotesk', 'Inter', sans-serif;

  --content-narrow: 680px;
  --content-default: 980px;
  --content-wide: 1260px;
}

[data-theme='dark'] {
  --color-bg: #13120e;
  --color-surface: #181610;
  --color-surface-2: #1e1b14;
  --color-surface-offset: #201e17;
  --color-surface-offset-2: #252218;
  --color-surface-dynamic: #2e2b21;
  --color-divider: #302c22;
  --color-border: #403c2e;
  --color-text: #e8e4d8;
  --color-text-muted: #857f6e;
  --color-text-faint: #5a5546;
  --color-text-inverse: #181610;
  --color-primary: #5b9fd0;
  --color-primary-hover: #3d86bc;
  --color-primary-active: #2570a5;
  --color-primary-highlight: #1f3449;
  --color-accent: #e6a046;
  --color-accent-hover: #f0b85c;
  --color-accent-highlight: #3d2e10;
  --route-0: #f0a06a;
  --route-1: #6ab8e8;
  --route-2: #8ed48e;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #13120e;
    --color-surface: #181610;
    --color-surface-2: #1e1b14;
    --color-surface-offset: #201e17;
    --color-surface-offset-2: #252218;
    --color-surface-dynamic: #2e2b21;
    --color-divider: #302c22;
    --color-border: #403c2e;
    --color-text: #e8e4d8;
    --color-text-muted: #857f6e;
    --color-text-faint: #5a5546;
    --color-text-inverse: #181610;
    --color-primary: #5b9fd0;
    --color-primary-hover: #3d86bc;
    --color-primary-active: #2570a5;
    --color-primary-highlight: #1f3449;
    --color-accent: #e6a046;
    --color-accent-hover: #f0b85c;
    --color-accent-highlight: #3d2e10;
    --route-0: #f0a06a;
    --route-1: #6ab8e8;
    --route-2: #8ed48e;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.5);
  }
}

/* BASE */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}
img, svg { display: block; max-width: 100%; height: auto; }
h1,h2,h3,h4,h5 { text-wrap: balance; line-height: 1.15; font-family: var(--font-display); }
p, li { text-wrap: pretty; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }
ul { list-style: none; }
a { color: inherit; text-decoration: none; }

a, button, [role='button'] {
  transition: color var(--transition-interactive), background var(--transition-interactive), border-color var(--transition-interactive), opacity var(--transition-interactive), box-shadow var(--transition-interactive);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.sr-only { position: absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border-width:0; }

/* CONTAINER */
.container { width: 100%; max-width: var(--content-default); margin: 0 auto; padding: 0 var(--space-6); }
.container-wide { max-width: var(--content-wide); }

/* SECTION */
.section { padding-block: clamp(var(--space-12), 6vw, var(--space-24)); }
.section-header { max-width: 640px; margin-bottom: var(--space-10); }
.section-title { font-size: var(--text-xl); color: var(--color-text); margin-bottom: var(--space-3); }
.section-sub { font-size: var(--text-base); color: var(--color-text-muted); }

/* ============================================================ NAV */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 90%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: 64px;
}
.nav-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.nav-logo {
  display: flex; align-items: center; gap: var(--space-3);
  color: var(--color-text);
}
.nav-wordmark {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.nav-actions { display: flex; align-items: center; gap: var(--space-6); }
.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}
.nav-link:hover { color: var(--color-text); }
.theme-toggle {
  width: 36px; height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-surface-offset);
  border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-muted);
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-dynamic); }

/* ============================================================ HERO */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
}
.hero-gradient {
  position: absolute; inset: 0;
  background: linear-gradient(
    135deg,
    color-mix(in oklab, var(--color-primary) 30%, var(--color-bg)) 0%,
    var(--color-bg) 50%,
    color-mix(in oklab, var(--color-accent) 15%, var(--color-bg)) 100%
  );
}
.hero-terrain {
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 220px;
  overflow: hidden;
}
.hero-content {
  position: relative; z-index: 1;
  max-width: var(--content-default);
  margin: 0 auto;
  padding: var(--space-16) var(--space-6) var(--space-20);
  width: 100%;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-highlight);
  border: 1px solid color-mix(in oklab, var(--color-accent) 30%, transparent);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}
.hero-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.05;
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}
.hero-arrow { color: var(--color-accent); }
.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 640px;
  margin-bottom: var(--space-10);
  line-height: 1.6;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-bottom: var(--space-10);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--color-divider);
}
.stat { display: flex; flex-direction: column; gap: var(--space-1); }
.stat-val {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.hero-cta { display: flex; gap: var(--space-4); flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 600;
}
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 600;
}
.btn-secondary:hover { background: var(--color-surface-offset); }
.hero-scroll {
  position: absolute; bottom: var(--space-8); left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); color: var(--color-text-faint); text-transform: uppercase; letter-spacing: 0.08em;
  animation: bounce 2s infinite;
}
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(6px)} }

/* ============================================================ SVG TERRAIN */
#heroTerrain svg { width: 100%; height: 100%; }

/* ============================================================ ROUTES SECTION */
.routes-section { background: var(--color-surface); border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.route-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}
.route-card {
  padding: var(--space-6);
  background: var(--color-surface-2);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  text-align: left;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.route-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--color-border);
  transition: background var(--transition-interactive);
}
.route-card[data-route="0"]::before { background: var(--route-0); opacity: 0; transition: opacity var(--transition-interactive); }
.route-card[data-route="1"]::before { background: var(--route-1); opacity: 0; }
.route-card[data-route="2"]::before { background: var(--route-2); opacity: 0; }
.route-card.active[data-route="0"]::before { opacity: 1; }
.route-card.active[data-route="1"]::before { opacity: 1; }
.route-card.active[data-route="2"]::before { opacity: 1; }
.route-card:hover, .route-card.active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.route-card.active { background: var(--color-primary-highlight); }
[data-theme='dark'] .route-card.active { background: color-mix(in oklab, var(--color-primary) 12%, var(--color-surface-2)); }
.route-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-3);
}
.route-number {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text-faint);
  line-height: 1;
}
.route-badge {
  font-size: var(--text-xs);
  font-weight: 600;
  padding: 3px var(--space-3);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.route-badge.scenic { background: color-mix(in oklab, var(--route-0) 20%, transparent); color: var(--route-0); }
.route-badge.fast { background: color-mix(in oklab, var(--route-1) 20%, transparent); color: var(--route-1); }
.route-badge.adventurous { background: color-mix(in oklab, var(--route-2) 20%, transparent); color: var(--route-2); }
.route-card-title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}
.route-card-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: var(--space-4);
}
.route-card-stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.route-card-stats span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  background: var(--color-surface-offset);
  padding: 3px var(--space-3);
  border-radius: var(--radius-full);
}
.route-card-countries {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.country-tag {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
}
.country-tag.py { background: #d52b1e22; color: #d52b1e; }
.country-tag.ar { background: #74acdf22; color: #5596cc; }
.country-tag.bo { background: #f4e54022; color: #c8a800; }
.country-tag.pe { background: #d91b2222; color: #c0151c; }
.country-tag.br { background: #009c3b22; color: #007a2f; }
[data-theme='dark'] .country-tag.ar { color: #8bc8f0; }
[data-theme='dark'] .country-tag.bo { color: #e8cb30; }
.route-arrow-sm { color: var(--color-text-faint); font-size: var(--text-xs); }

/* ============================================================ MAP */
.map-section { background: var(--color-bg); }
.map-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--space-6);
  align-items: start;
}
.map-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  position: sticky;
  top: 80px;
}
.sidebar-heading {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.route-meta {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.route-meta-title {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-4);
  font-family: var(--font-display);
}
.route-meta-items { display: flex; flex-direction: column; gap: var(--space-3); }
.route-meta-item {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-divider);
  font-size: var(--text-sm);
}
.route-meta-item:last-child { border-bottom: none; padding-bottom: 0; }
.route-meta-item .label { color: var(--color-text-muted); }
.route-meta-item .value { font-weight: 600; color: var(--color-text); }
.elevation-chart-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.elevation-chart {
  height: 80px;
  position: relative;
  overflow: hidden;
  margin-bottom: var(--space-2);
}
.elevation-chart svg { width: 100%; height: 100%; }
.elevation-labels {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.legend-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.legend-items { display: flex; flex-direction: column; gap: var(--space-2); }
.legend-item {
  display: flex; align-items: center; gap: var(--space-3);
  font-size: var(--text-sm); color: var(--color-text-muted);
}
.legend-dot {
  width: 10px; height: 10px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}
.legend-dot.accent { background: var(--color-accent); }
.legend-dot.border { background: #e84040; }
.legend-dot.scenic { background: #8050c8; }
.legend-dot.fuel { background: var(--color-primary); }
.legend-dot.camp { background: var(--color-success, #4a8a4a); }
.map-container {
  height: 620px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

/* ============================================================ ITINERARY */
.itinerary-section { background: var(--color-surface); border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.itinerary-days { display: flex; flex-direction: column; gap: var(--space-4); }
.day-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.day-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  border-bottom: 1px solid transparent;
  transition: background var(--transition-interactive), border-color var(--transition-interactive);
}
.day-card-header:hover { background: var(--color-surface-offset); }
.day-card.expanded .day-card-header { border-bottom-color: var(--color-divider); background: var(--color-surface-offset); }
.day-num {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text-faint);
  line-height: 1;
  min-width: 3ch;
}
.day-header-info { flex: 1; min-width: 0; }
.day-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
  font-family: var(--font-display);
}
.day-subtitle { font-size: var(--text-sm); color: var(--color-text-muted); }
.day-chips { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-left: auto; }
.chip {
  font-size: var(--text-xs);
  padding: 3px var(--space-3);
  border-radius: var(--radius-full);
  font-weight: 600;
  white-space: nowrap;
}
.chip.dist { background: var(--color-surface-dynamic); color: var(--color-text-muted); }
.chip.time { background: color-mix(in oklab, var(--color-primary) 15%, transparent); color: var(--color-primary); }
.chip.elev { background: color-mix(in oklab, var(--color-accent) 15%, transparent); color: var(--color-accent); }
.chip.border { background: #e8404020; color: #e84040; }
.day-chevron { color: var(--color-text-faint); transition: transform var(--transition-interactive); flex-shrink: 0; }
.day-card.expanded .day-chevron { transform: rotate(180deg); }
.day-card-body {
  display: none;
  padding: var(--space-6);
}
.day-card.expanded .day-card-body { display: block; }
.day-stops { display: flex; flex-direction: column; gap: 0; }
.day-stop {
  display: flex;
  gap: var(--space-4);
  position: relative;
  padding-bottom: var(--space-4);
}
.day-stop:last-child { padding-bottom: 0; }
.stop-line {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
}
.stop-dot {
  width: 12px; height: 12px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-border);
  background: var(--color-surface-2);
  flex-shrink: 0;
  z-index: 1;
}
.stop-dot.type-start, .stop-dot.type-end { background: var(--color-accent); border-color: var(--color-accent); }
.stop-dot.type-border { background: #e84040; border-color: #e84040; }
.stop-dot.type-scenic { background: #8050c8; border-color: #8050c8; }
.stop-dot.type-fuel { background: var(--color-primary); border-color: var(--color-primary); }
.stop-dot.type-overnight { background: #4a8a4a; border-color: #4a8a4a; }
.stop-connector {
  width: 2px;
  flex: 1;
  background: var(--color-divider);
  margin-top: 2px;
}
.day-stop:last-child .stop-connector { display: none; }
.stop-content { flex: 1; padding-top: 0; }
.stop-name { font-size: var(--text-sm); font-weight: 700; color: var(--color-text); margin-bottom: 2px; }
.stop-detail { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.5; }
.stop-tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-2); }
.stop-tag {
  font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em;
  padding: 2px var(--space-2); border-radius: var(--radius-sm);
  background: var(--color-surface-offset); color: var(--color-text-faint);
}
.day-notes {
  margin-top: var(--space-5);
  padding: var(--space-4) var(--space-5);
  background: var(--color-surface-offset);
  border-radius: var(--radius-lg);
  border-left: 3px solid var(--color-accent);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.day-notes strong { color: var(--color-text); }

/* ============================================================ BORDER INFO */
.border-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
}
.border-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  border-top: 3px solid #e84040;
}
.border-card-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
  font-family: var(--font-display);
}
.border-countries {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}
.border-info { display: flex; flex-direction: column; gap: var(--space-3); }
.border-info-row {
  display: flex; gap: var(--space-3); align-items: flex-start;
  font-size: var(--text-sm);
}
.border-info-label {
  color: var(--color-text-muted);
  min-width: 70px;
  flex-shrink: 0;
}
.border-info-val { color: var(--color-text); line-height: 1.5; }

/* ============================================================ ESSENTIALS */
.essentials-section { background: var(--color-bg); }
.essentials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
}
.essential-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}
.essential-icon {
  width: 48px; height: 48px;
  background: var(--color-primary-highlight);
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.essential-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  font-family: var(--font-display);
}
.essential-card p { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-3); line-height: 1.6; }
.essential-list { display: flex; flex-direction: column; gap: var(--space-2); }
.essential-list li {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding-left: var(--space-4);
  position: relative;
}
.essential-list li::before {
  content: '→';
  position: absolute; left: 0;
  color: var(--color-accent);
}

/* ============================================================ GPX EXPORT */
.export-section { background: var(--color-surface); border-top: 1px solid var(--color-divider); border-bottom: 1px solid var(--color-divider); }
.export-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}
.export-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}
.export-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.route-number-sm {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text-faint);
}
.export-card h3 { font-size: var(--text-base); font-weight: 700; color: var(--color-text); }
.export-desc { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-4); line-height: 1.5; }
.export-meta {
  display: flex; gap: var(--space-4);
  font-size: var(--text-xs); color: var(--color-text-muted);
  margin-bottom: var(--space-5);
}
.btn-download {
  display: flex; align-items: center; gap: var(--space-2);
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  justify-content: center;
}
.btn-download:hover { background: var(--color-primary-hover); }
.export-note {
  display: flex; align-items: flex-start; gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-accent-highlight);
  border: 1px solid color-mix(in oklab, var(--color-accent) 25%, transparent);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
}
.export-note svg { color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }

/* ============================================================ FOOTER */
.footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-8);
  background: var(--color-surface);
}
.footer-inner { display: flex; flex-direction: column; gap: var(--space-4); }
.footer-brand {
  display: flex; align-items: center; gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}
.footer-note { font-size: var(--text-xs); color: var(--color-text-faint); max-width: 640px; line-height: 1.6; }

/* ============================================================ LEAFLET OVERRIDES */
.leaflet-container {
  background: var(--color-bg) !important;
  font-family: var(--font-body) !important;
}
.leaflet-popup-content-wrapper {
  background: var(--color-surface) !important;
  color: var(--color-text) !important;
  border: 1px solid var(--color-border) !important;
  box-shadow: var(--shadow-lg) !important;
  border-radius: var(--radius-lg) !important;
}
.leaflet-popup-tip { background: var(--color-surface) !important; }
.leaflet-popup-content { font-size: 13px !important; line-height: 1.5 !important; }
.popup-title { font-weight: 700; margin-bottom: 4px; font-family: var(--font-display); font-size: 14px; }
.popup-type {
  font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  margin-bottom: 6px; color: var(--color-text-muted);
}
.popup-detail { font-size: 12px; color: var(--color-text-muted); }

/* ============================================================ RESPONSIVE */
@media (max-width: 768px) {
  .nav-link { display: none; }
  .map-layout { grid-template-columns: 1fr; }
  .map-sidebar { position: static; }
  .map-container { height: 400px; }
  .hero-title { font-size: clamp(2rem, 8vw, 3rem); }
  .hero-stats { gap: var(--space-4); }
  .route-cards { grid-template-columns: 1fr; }
  .day-chips { display: none; }
}
@media (max-width: 480px) {
  .nav-wordmark { display: none; }
  .hero-sub { font-size: var(--text-base); }
}