:root {
  --bg: #04121f;
  --bg2: #071d30;
  --ink: #e8f6ff;
  --muted: #8fb3c9;
  --aqua: #22e1ff;
  --coral: #ff6b6b;
  --sand: #ffd59e;
  --glass: rgba(255, 255, 255, .06);
  --line: rgba(34, 225, 255, .25);
  --radius: 20px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--ink); font: 300 17px/1.6 "Outfit", system-ui, sans-serif; overflow-x: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3, .logo { font-family: "Orbitron", sans-serif; letter-spacing: .02em; }

/* ---------- NAV ---------- */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; display: flex; align-items: center; justify-content: space-between; padding: 18px clamp(16px, 5vw, 60px); transition: background .3s, padding .3s; }
.nav::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0; background: rgba(4, 18, 31, .75); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); transition: opacity .3s; }
.nav.scrolled { padding-block: 12px; }
.nav.scrolled::before { opacity: 1; }
.logo { font-weight: 800; font-size: 1.3rem; text-decoration: none; }
.logo span { color: var(--aqua); text-shadow: 0 0 12px var(--aqua); }
.nav nav { display: flex; gap: 28px; align-items: center; }
.nav nav a { text-decoration: none; color: var(--muted); transition: color .2s; }
.nav nav a:hover { color: var(--ink); }
.burger { display: none; background: none; border: 0; width: 32px; height: 24px; position: relative; cursor: pointer; }
.burger span { position: absolute; left: 0; right: 0; height: 2px; background: var(--ink); transition: transform .3s; }
.burger span:first-child { top: 6px; }
.burger span:last-child { bottom: 6px; }
.burger[aria-expanded="true"] span:first-child { transform: translateY(5px) rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { transform: translateY(-5px) rotate(-45deg); }

/* ---------- BUTTONS ---------- */
.btn { display: inline-block; padding: 14px 28px; border-radius: 999px; border: 0; cursor: pointer; font: 600 1rem "Outfit", sans-serif; text-decoration: none; color: var(--bg) !important; background: linear-gradient(90deg, var(--aqua), #7cf5ff); box-shadow: 0 0 24px rgba(34, 225, 255, .45); transition: transform .2s, box-shadow .2s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 0 40px rgba(34, 225, 255, .7); }
.btn-ghost { background: transparent; color: var(--ink) !important; border: 1px solid var(--line); box-shadow: none; }
.btn-sm { padding: 8px 18px; }

/* ---------- HERO ---------- */
.hero { position: relative; min-height: 100svh; display: grid; place-items: center; overflow: hidden; padding: 120px 16px 160px;
  background: radial-gradient(ellipse at 50% 120%, #0b4f72 0%, transparent 60%), linear-gradient(180deg, #1a0f3d 0%, #3b1f5e 30%, #c2456b 58%, var(--bg) 100%); }
.sun { position: absolute; width: min(60vw, 520px); aspect-ratio: 1; border-radius: 50%; top: 32%; left: 50%; translate: -50% 0;
  background: repeating-linear-gradient(180deg, var(--sand) 0 14px, transparent 14px 20px), linear-gradient(var(--sand), var(--coral));
  -webkit-mask: linear-gradient(#000 55%, transparent 90%); mask: linear-gradient(#000 55%, transparent 90%);
  filter: drop-shadow(0 0 60px var(--coral)); opacity: .55; animation: sun 8s ease-in-out infinite alternate; }
@keyframes sun { to { translate: -50% -14px; opacity: .7; } }
.grid-floor { position: absolute; inset: 62% -50% 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 60px 60px; transform: perspective(400px) rotateX(65deg); animation: grid 3s linear infinite; opacity: .6; }
@keyframes grid { to { background-position: 0 60px; } }
.hero-inner { position: relative; z-index: 2; text-align: center; max-width: 820px; }
.eyebrow { color: var(--aqua); letter-spacing: .25em; text-transform: uppercase; font-size: .8rem; font-weight: 600; }
h1 { font-size: clamp(2.8rem, 10vw, 6.5rem); line-height: 1; margin: 18px 0; }
.glow { background: linear-gradient(90deg, var(--aqua), #fff, var(--aqua)); background-size: 200% auto; -webkit-background-clip: text; background-clip: text; color: transparent; animation: shine 4s linear infinite; filter: drop-shadow(0 0 20px rgba(34, 225, 255, .6)); }
@keyframes shine { to { background-position: 200% center; } }
.lead { color: #d6e9f5; max-width: 560px; margin: 0 auto 32px; }
.cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.waves { position: absolute; bottom: -1px; left: 0; width: 100%; height: 160px; z-index: 1; }
.waves path { animation: wave 10s linear infinite; }
.w1 { fill: rgba(34, 225, 255, .18); }
.w2 { fill: rgba(11, 79, 114, .55); animation-duration: 14s !important; animation-direction: reverse !important; }
.w3 { fill: var(--bg); animation-duration: 18s !important; }
@keyframes wave { to { transform: translateX(-1440px); } }

.bubbles span { position: absolute; bottom: -20px; border-radius: 50%; background: radial-gradient(circle at 30% 30%, #fff8, var(--aqua) 60%, transparent 70%); opacity: .5; animation: rise linear infinite; }
@keyframes rise { to { transform: translateY(-110vh) translateX(30px); opacity: 0; } }

/* ---------- STATS ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; max-width: 1100px; margin: -40px auto 0; padding: 0 16px; position: relative; z-index: 3; }
.stat { background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; text-align: center; backdrop-filter: blur(10px); }
.stat b { display: block; font: 800 2rem "Orbitron", sans-serif; color: var(--aqua); }
.stat span { color: var(--muted); font-size: .9rem; }

/* ---------- SECTIONS ---------- */
.section { padding: 110px clamp(16px, 5vw, 60px); max-width: 1240px; margin: 0 auto; }
.section-alt { max-width: none; background: linear-gradient(180deg, var(--bg), var(--bg2), var(--bg)); }
.section-alt > * { max-width: 1120px; margin-inline: auto; }
h2 { font-size: clamp(1.8rem, 5vw, 3rem); text-align: center; }
.sub { text-align: center; color: var(--muted); margin: 10px auto 48px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card { background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform .2s, box-shadow .3s; transform-style: preserve-3d; }
.card:hover { box-shadow: 0 20px 60px rgba(34, 225, 255, .2); }
.card.featured { border-color: var(--aqua); box-shadow: 0 0 30px rgba(34, 225, 255, .25); }
.card img { aspect-ratio: 10/7; object-fit: cover; width: 100%; }
.card-body { padding: 22px; }
.card h3 { margin: 10px 0 6px; }
.card p { color: var(--muted); }
.tag { font-size: .75rem; text-transform: uppercase; letter-spacing: .15em; color: var(--sand); }
.price { margin-top: 16px; color: var(--muted); }
.price b { color: var(--ink); font-size: 1.2rem; }

.tours { display: grid; gap: 20px; }
.tour { display: grid; grid-template-columns: 240px 1fr; gap: 24px; align-items: center; background: var(--glass); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.tour img { height: 100%; object-fit: cover; }
.tour > div { padding: 20px 20px 20px 0; }
.tour p { color: var(--muted); }
.tour b { color: var(--aqua); font: 800 1.4rem "Orbitron", sans-serif; }

.steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: s; }
.steps li { padding: 30px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--glass); }
.steps span { font: 800 2.4rem "Orbitron", sans-serif; color: transparent; -webkit-text-stroke: 1px var(--aqua); }
.steps h3 { margin: 8px 0; }
.steps p { color: var(--muted); }

.gallery { overflow: hidden; padding: 20px 0; }
.track { display: flex; gap: 16px; width: max-content; animation: marquee 40s linear infinite; }
.track img { width: 320px; border-radius: 16px; }
@keyframes marquee { to { transform: translateX(-50%); } }

.faq { max-width: 760px; margin: 0 auto; display: grid; gap: 12px; }
details { border: 1px solid var(--line); border-radius: 14px; background: var(--glass); padding: 18px 22px; }
summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; }
summary::after { content: "+"; color: var(--aqua); transition: transform .3s; }
details[open] summary::after { transform: rotate(45deg); }
details p { color: var(--muted); margin-top: 10px; }

.booking { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; max-width: 760px; padding: 32px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--glass); backdrop-filter: blur(10px); }
.booking label { display: grid; gap: 6px; font-size: .9rem; color: var(--muted); }
.booking input, .booking select { font: 400 16px "Outfit", sans-serif; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--line); background: rgba(0, 0, 0, .3); color: var(--ink); color-scheme: dark; }
.booking input:focus, .booking select:focus { outline: 2px solid var(--aqua); outline-offset: 1px; }
.booking .btn { grid-column: 1 / -1; justify-self: center; }

.footer { text-align: center; padding: 60px 16px; border-top: 1px solid var(--line); color: var(--muted); display: grid; gap: 8px; }

/* ---------- REVEAL ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 860px) {
  .burger { display: block; }
  .nav nav { position: fixed; inset: 0 0 0 30%; flex-direction: column; justify-content: center; background: rgba(4, 18, 31, .96); backdrop-filter: blur(14px); transform: translateX(100%); transition: transform .35s; border-left: 1px solid var(--line); }
  .nav nav.open { transform: none; }
  .burger { z-index: 2; }
  .stats, .cards, .steps { grid-template-columns: 1fr 1fr; }
  .cards .card:last-child { grid-column: 1 / -1; }
  .tour { grid-template-columns: 1fr; }
  .tour > div { padding: 0 20px 20px; }
}
@media (max-width: 560px) {
  .cards, .steps, .booking { grid-template-columns: 1fr; }
  .stat b { font-size: 1.5rem; }
  .stat { padding: 18px 10px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}