/* ============================================================
   NILADREE RADIANT — Design Tokens
   Palette: Nilambar (indigo night sky) → Radiant Gold (dawn)
   Signature: horizon-line motif (sun rising over Nilachala / "blue mountain")
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Work+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500&display=swap');

:root {
  /* Color */
  --nilambar:      #16213E;   /* deep indigo — night sky over the mountain */
  --nilambar-deep:  #0E1730;
  --gold:           #D4A537;  /* radiant — the dawn */
  --gold-soft:      #E8C971;
  --marigold:       #E1662F;  /* spiritual tours */
  --teal:           #2B7A78;  /* international tours */
  --clay:           #B4552F;  /* student/educational tours */
  --sand:           #F6F1E7;  /* warm paper background */
  --sand-deep:      #EDE4D0;
  --ink:            #1B1B1D;
  --ink-soft:       #504C46;
  --line:           #DDD3BC;

  /* Type */
  --f-display: 'Fraunces', Georgia, serif;
  --f-body: 'Work Sans', -apple-system, sans-serif;
  --f-mono: 'IBM Plex Mono', monospace;

  --radius: 2px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--f-body);
  background: var(--sand);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--nilambar);
}

h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); font-weight: 500; }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
h3 { font-size: 1.3rem; }

p { margin: 0 0 1em; color: var(--ink-soft); }

.eyebrow {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 88px 0; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 28px;
  border: 1px solid var(--nilambar);
  border-radius: var(--radius);
  cursor: pointer;
  background: transparent;
  color: var(--nilambar);
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.btn:hover { background: var(--nilambar); color: var(--sand); }

.btn-solid {
  background: var(--nilambar);
  color: var(--sand);
}
.btn-solid:hover { background: var(--gold); border-color: var(--gold); color: var(--nilambar-deep); }

.btn-gold {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--nilambar-deep);
}
.btn-gold:hover { background: var(--gold-soft); border-color: var(--gold-soft); }

/* ---------- Nav ---------- */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--sand);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-logo {
  height: 48px;
  width: auto;
  display: block;
}
nav.main-nav { display: flex; gap: 32px; }
nav.main-nav a {
  font-family: var(--f-mono);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
nav.main-nav a:hover, nav.main-nav a.active {
  color: var(--marigold);
  border-color: var(--marigold);
}
.nav-toggle { display: none; background: none; border: none; cursor: pointer; }

@media (max-width: 760px) {
  nav.main-nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--sand);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--line);
    display: none;
  }
  nav.main-nav.open { display: flex; }
  nav.main-nav a { padding: 16px 24px; border-bottom: 1px solid var(--line); }
  .nav-toggle { display: block; }
}

/* ---------- Horizon motif (signature element) ---------- */
.horizon {
  width: 100%;
  height: auto;
  display: block;
}
.horizon-divider {
  padding: 6px 0;
  background: var(--sand);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(180deg, var(--nilambar-deep) 0%, var(--nilambar) 62%, var(--nilambar) 100%);
  color: var(--sand);
  overflow: hidden;
  padding: 0;
}
.hero-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 120px 24px 0;
  position: relative;
  z-index: 2;
}
.hero h1 { color: var(--sand); max-width: 760px; }
.hero p.lead { color: #C9CBDA; max-width: 520px; font-size: 1.05rem; }
.hero-cta { display: flex; gap: 16px; margin-top: 28px; flex-wrap: wrap; }

.hero-scene { position: relative; height: 220px; margin-top: 40px; }
.sun {
  position: absolute;
  left: 50%;
  bottom: -60px;
  transform: translateX(-50%);
  width: 220px; height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 45%, var(--gold-soft), var(--gold) 60%, transparent 72%);
  opacity: 0;
  animation: rise 1.6s ease-out 0.2s forwards;
}
@keyframes rise {
  from { opacity: 0; transform: translateX(-50%) translateY(30px); }
  to   { opacity: 0.9; transform: translateX(-50%) translateY(0); }
}
.mountains {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  .sun { animation: none; opacity: 0.9; }
}

/* ---------- Section headers ---------- */
.section-head {
  max-width: 620px;
  margin: 0 auto 48px;
  text-align: center;
}
.section-head.left { margin: 0 0 48px; text-align: left; }

/* ---------- Cards grid ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr; } }

.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 32px rgba(22,33,62,0.1); }

.ph-image {
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.85);
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-align: center;
  padding: 16px;
  text-transform: uppercase;
  position: relative;
}
.ph-image span { position: relative; z-index: 2; }
.ph-image::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(135deg, rgba(255,255,255,0.06) 0 2px, transparent 2px 14px);
}

.tag-spiritual { background: linear-gradient(150deg, var(--marigold), #a8451c); }
.tag-international { background: linear-gradient(150deg, var(--teal), #17504e); }
.tag-student { background: linear-gradient(150deg, var(--clay), #7c3819); }
.tag-mixed { background: linear-gradient(150deg, var(--nilambar), var(--nilambar-deep)); }

.card-body { padding: 20px 22px 24px; }
.card-body h3 { margin-bottom: 6px; }
.card-meta {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: flex;
  gap: 14px;
  margin-bottom: 10px;
}
.card-price {
  font-family: var(--f-mono);
  font-size: 0.85rem;
  color: var(--nilambar);
  margin-top: 12px;
}

/* ---------- Tabs (Tours page) ---------- */
.tab-bar {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.tab-btn {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 22px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  color: var(--ink-soft);
  transition: color 0.2s, border-color 0.2s;
}
.tab-btn.active { color: var(--nilambar); border-color: var(--gold); }
.tab-panel { display: none; animation: fadein 0.35s ease; }
.tab-panel.active { display: block; }
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }

/* ---------- Footer ---------- */
footer.site-footer {
  background: var(--nilambar-deep);
  color: #B7BAC9;
  padding: 56px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
footer h4 { color: var(--sand); font-size: 0.95rem; margin-bottom: 14px; }
footer a { color: #B7BAC9; display: block; margin-bottom: 8px; font-size: 0.9rem; }
footer a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: #7C8199;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- Forms ---------- */
.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  font-family: var(--f-body);
  font-size: 0.95rem;
  color: var(--ink);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
  border-color: var(--gold);
}
.form-note { font-size: 0.82rem; color: var(--ink-soft); }
.form-status { font-family: var(--f-mono); font-size: 0.8rem; margin-top: 12px; }
.form-status.ok { color: var(--teal); }
.form-status.err { color: var(--clay); }

/* ---------- Itinerary gate ---------- */
.gate-wrap { position: relative; }
.gate-content {
  transition: filter 0.6s ease;
}
.gate-content.locked {
  filter: blur(9px);
  user-select: none;
  pointer-events: none;
}
.gate-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 5;
}
.gate-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 32px;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 24px 60px rgba(22,33,62,0.22);
}
.gate-card h3 { margin-bottom: 6px; }
.gate-card p { font-size: 0.9rem; }

.reveal-line {
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold), var(--marigold));
  transition: width 0.9s ease;
  margin-bottom: 18px;
}
.reveal-line.done { width: 100%; }

/* ---------- Itinerary day list ---------- */
.day {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.day:first-child { border-top: none; }
.day-num {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--gold);
  text-transform: uppercase;
}
.day-num strong {
  display: block;
  font-family: var(--f-display);
  font-size: 1.6rem;
  color: var(--nilambar);
  font-weight: 600;
}

.include-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 20px; }
.include-list li { font-size: 0.9rem; padding-left: 18px; position: relative; }
.include-list li::before { content: '—'; position: absolute; left: 0; color: var(--gold); }

/* ---------- Misc ---------- */
.badge {
  display: inline-block;
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: var(--radius);
  color: #fff;
}
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; gap: 32px; } }

.gallery-grid {
  columns: 3 220px;
  column-gap: 20px;
}
.gallery-grid figure {
  break-inside: avoid;
  margin: 0 0 20px;
}
.gallery-grid figcaption {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--ink-soft);
  padding-top: 6px;
}
@media (max-width: 700px) { .gallery-grid { columns: 1 100%; } }

.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
@media (max-width: 800px) { .team-grid { grid-template-columns: repeat(2, 1fr); } }
.team-card h4 { margin: 14px 0 2px; font-family: var(--f-body); font-weight: 600; font-size: 1rem; color: var(--ink); }
.team-role { font-family: var(--f-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--gold); }

.stats-strip {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  border-top: 1px solid rgba(255,255,255,0.15);
  border-bottom: 1px solid rgba(255,255,255,0.15);
  padding: 32px 0;
  margin-top: 56px;
}
.stat { font-family: var(--f-mono); color: var(--sand); }
.stat strong { display: block; font-family: var(--f-display); font-size: 2.2rem; color: var(--gold); font-weight: 600; }
.stat span { font-size: 0.7rem; letter-spacing: 0.06em; text-transform: uppercase; color: #C9CBDA; }

.bg-nilambar { background: var(--nilambar); color: var(--sand); }
.bg-nilambar h2 { color: var(--sand); }
.bg-nilambar p { color: #C9CBDA; }
.bg-sand-deep { background: var(--sand-deep); }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }