/* ============================================
   XZZY Trip — Tibet, Reimagined
   A cinematic brand experience
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --bg-deep: #0a0a12;
  --bg-surface: #111120;
  --bg-card: #16162a;
  --gold: #a77b3c;
  --gold-light: #c9a05c;
  --ice: #7ab8d4;
  --snow: #f0ede8;
  --text-primary: #f0ede8;
  --text-secondary: #a9a4b0;
  --text-muted: #6b6770;
  --border: rgba(167, 123, 60, 0.15);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --gap: 24px;
  --radius: 16px;
  --radius-sm: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--gold); text-decoration: none; transition: all 0.3s; }
a:hover { color: var(--gold-light); }
img { max-width: 100%; display: block; }
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
}
.display-hero {
  font-size: clamp(48px, 8vw, 96px);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1.0;
}
.display-xl {
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 400;
  letter-spacing: -0.02em;
}
.display-lg {
  font-size: clamp(28px, 3.5vw, 48px);
  font-weight: 400;
}
.display-md {
  font-size: clamp(22px, 2.5vw, 32px);
  font-weight: 500;
}
.text-body { font-size: 16px; color: var(--text-secondary); line-height: 1.7; }
.text-sm { font-size: 14px; color: var(--text-muted); }
.text-xs { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.gold { color: var(--gold); }
.ice { color: var(--ice); }

/* ---- Navigation ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all 0.4s;
  background: transparent;
}
.nav.scrolled {
  background: rgba(10, 10, 18, 0.92);
  backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 500;
  color: var(--snow);
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--gold); }
.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
  align-items: center;
}
.nav-links a {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.3s;
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a:hover { color: var(--snow); }
.nav-links a.active { color: var(--gold); }
.nav-cta {
  background: var(--gold);
  color: var(--bg-deep) !important;
  padding: 10px 24px;
  border-radius: 100px;
  font-weight: 600 !important;
  text-transform: none !important;
  letter-spacing: normal !important;
}
.nav-cta:hover { background: var(--gold-light); color: var(--bg-deep) !important; }
.nav-cta::after { display: none !important; }

/* ---- Hero ---- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 10, 18, 0.85) 0%,
    rgba(10, 10, 18, 0.4) 50%,
    rgba(10, 10, 18, 0.7) 100%
  );
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero-tag {
  display: inline-block;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-bottom: 20px;
  border: 1px solid var(--border);
  padding: 6px 16px;
  border-radius: 100px;
}
.hero-content .display-hero {
  margin-bottom: 24px;
}
.hero-content .text-body {
  font-size: 18px;
  max-width: 540px;
  margin-bottom: 40px;
}
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--gold);
  color: var(--bg-deep);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  padding: 16px 36px;
  border-radius: 100px;
  transition: all 0.3s;
  border: none;
  cursor: pointer;
}
.hero-cta:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  color: var(--bg-deep);
}
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ---- Section ---- */
.section {
  padding: 120px 0;
  position: relative;
}
.section-dark { background: var(--bg-surface); }
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 80px;
}
.section-tag {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--gold);
  margin-bottom: 16px;
}

/* ---- Expedition Cards ---- */
.expedition-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.expedition-card {
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  border: 1px solid var(--border);
  cursor: pointer;
}
.expedition-card:hover {
  transform: translateY(-8px);
  border-color: rgba(167, 123, 60, 0.3);
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.expedition-image {
  width: 100%;
  height: 240px;
  object-fit: cover;
  transition: transform 0.8s;
}
.expedition-card:hover .expedition-image { transform: scale(1.05); }
.expedition-body { padding: 28px; }
.expedition-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.expedition-meta span { display: flex; align-items: center; gap: 4px; }
.expedition-body h3 {
  font-size: 22px;
  margin-bottom: 10px;
}
.expedition-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}
.expedition-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ---- Story Section ---- */
.story-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.story-image {
  border-radius: var(--radius);
  overflow: hidden;
}
.story-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}
.story-content h2 { margin-bottom: 24px; }
.story-content p { margin-bottom: 16px; }
.story-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.stat-item { text-align: center; }
.stat-number {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 300;
  color: var(--gold);
}
.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 4px; }

/* ---- Experience Grid ---- */
.exp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}
.exp-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 40px 28px;
  text-align: center;
  border: 1px solid var(--border);
  transition: all 0.3s;
}
.exp-card:hover {
  border-color: var(--gold);
  transform: translateY(-4px);
}
.exp-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: rgba(167, 123, 60, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}
.exp-card h4 { font-size: 18px; margin-bottom: 10px; }
.exp-card p { font-size: 14px; color: var(--text-secondary); }

/* ---- Testimonials ---- */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
.testimonial-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 36px;
  border: 1px solid var(--border);
}
.testimonial-card .quote {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  font-style: italic;
}
.testimonial-card .author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-card .avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  color: var(--bg-deep);
}
.testimonial-card .name { font-size: 14px; font-weight: 500; }
.testimonial-card .origin { font-size: 12px; color: var(--text-muted); }

/* ---- CTA Banner ---- */
.cta-banner {
  padding: 120px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.cta-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,10,18,0.85), rgba(10,10,18,0.6));
  z-index: 1;
}
.cta-content {
  position: relative;
  z-index: 2;
  max-width: 600px;
  margin: 0 auto;
}
.cta-content .display-lg { margin-bottom: 20px; }
.cta-content p { margin-bottom: 36px; }

/* ---- Footer ---- */
.footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 80px 0 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}
.footer-brand h3 {
  font-family: var(--font-display);
  font-size: 20px;
  margin-bottom: 12px;
}
.footer-brand p { font-size: 14px; color: var(--text-muted); max-width: 320px; }
.footer-col h5 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { font-size: 14px; color: var(--text-secondary); }
.footer-col a:hover { color: var(--gold); }
.footer-contact li {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}
.footer-contact strong { color: var(--snow); display: block; font-weight: 500; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--gold); }

/* ---- Mobile ---- */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.mobile-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--snow);
  margin: 6px 0;
  transition: 0.3s;
}

@media (max-width: 900px) {
  .mobile-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    background: rgba(10,10,18,0.98);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .expedition-grid { grid-template-columns: 1fr; }
  .exp-grid { grid-template-columns: repeat(2, 1fr); }
  .story-layout { grid-template-columns: 1fr; gap: 40px; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}
@media (max-width: 600px) {
  .exp-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .nav-links .nav-cta { text-align: center; }
}