:root {
  --navy-950: #020c14;
  --navy-900: #031522;
  --navy-850: #061d2d;
  --navy-800: #08273a;
  --cyan: #26d4ff;
  --cyan-soft: #77e6ff;
  --ice: #eefaff;
  --sand: #e9f1f1;
  --white: #fff;
  --ink: #0a1a22;
  --muted: #73838b;
  --line: rgba(255, 255, 255, 0.16);
  --shell: min(1480px, calc(100vw - 96px));
  --sans: "Noto Sans KR", system-ui, sans-serif;
  --mono: "IBM Plex Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--navy-950); font-family: var(--sans); line-height: 1.5; word-break: keep-all; overflow-wrap: break-word; -webkit-font-smoothing: antialiased; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
svg { width: 1.2em; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
.shell { width: var(--shell); margin-inline: auto; }
.section { padding: 150px 0; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 1000; top: 12px; left: 12px; padding: 12px 18px; color: var(--navy-950); background: var(--cyan); transform: translateY(-150%); transition: transform .2s; }
.skip-link:focus { transform: none; }
.mobile-only { display: none; }

.site-header { position: fixed; z-index: 100; inset: 0 0 auto; height: 104px; color: var(--white); transition: background .35s, height .35s, border-color .35s; border-bottom: 1px solid transparent; }
.site-header.scrolled { height: 76px; background: rgba(2, 15, 25, .9); border-bottom-color: rgba(255,255,255,.09); backdrop-filter: blur(18px); }
.header-inner { height: 100%; display: grid; grid-template-columns: 230px 1fr 230px; align-items: center; gap: 36px; }
.brand { display: inline-flex; width: 152px; align-items: center; }
.brand img { width: 100%; filter: brightness(0) invert(1); }
.site-nav { display: flex; justify-content: center; gap: clamp(24px, 3vw, 54px); font-size: 14px; font-weight: 600; }
.site-nav a { position: relative; padding: 12px 0; }
.site-nav a::after { content: ""; position: absolute; inset: auto 0 5px; height: 1px; background: var(--cyan); transform: scaleX(0); transform-origin: right; transition: transform .3s; }
.site-nav a:hover::after, .site-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.header-cta { justify-self: end; }
.menu-toggle { display: none; }

.button { display: inline-flex; min-height: 56px; padding: 0 24px; align-items: center; justify-content: center; gap: 18px; color: var(--navy-950); background: var(--cyan); border: 1px solid var(--cyan); font-size: 14px; font-weight: 800; letter-spacing: -.02em; transition: background .25s, color .25s, border .25s, transform .25s; }
.button:hover { color: var(--white); background: transparent; transform: translateY(-2px); }
.button-small { min-height: 46px; padding: 0 18px; gap: 10px; }
.button-ghost { color: var(--white); background: rgba(2,12,20,.12); border-color: rgba(255,255,255,.5); }
.button-ghost:hover { color: var(--navy-950); background: var(--white); border-color: var(--white); }
.button-dark { color: var(--white); background: var(--navy-900); border-color: var(--navy-900); }
.button-dark:hover { color: var(--navy-900); background: transparent; }
.text-link { display: inline-flex; align-items: center; gap: 14px; padding-bottom: 6px; border-bottom: 1px solid currentColor; font-size: 14px; font-weight: 700; }
.text-link svg { transition: transform .25s; }
.text-link:hover svg { transform: translateX(5px); }
.text-link.light { color: var(--white); }

.hero { position: relative; min-height: 900px; height: 100svh; max-height: 1120px; color: var(--white); overflow: hidden; background: var(--navy-950); }
.hero-image { position: absolute; inset: 0; background-image: linear-gradient(90deg, rgba(1,10,18,.98) 0%, rgba(2,17,29,.72) 40%, rgba(2,17,29,.2) 72%), linear-gradient(0deg, rgba(2,12,20,.8), transparent 45%), url("assets/images/hero-divers.webp"); background-size: cover; background-position: center 42%; transform: scale(1.02); animation: heroZoom 16s ease-out both; }
.hero-image::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 62% 18%, rgba(88,214,255,.2), transparent 24%), linear-gradient(180deg, transparent 60%, var(--navy-950)); mix-blend-mode: screen; }
.hero-grid { position: absolute; inset: 0; opacity: .12; background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px); background-size: 80px 80px; mask-image: linear-gradient(to right, black, transparent 80%); }
.hero-inner { position: relative; z-index: 2; height: 100%; display: grid; grid-template-columns: minmax(0, 1fr) 420px; align-items: center; gap: 72px; padding-top: 80px; }
.eyebrow { margin: 0 0 28px; display: flex; align-items: center; gap: 13px; font-family: var(--mono); font-size: 11px; font-weight: 500; letter-spacing: .14em; color: var(--cyan-soft); }
.eyebrow span { width: 28px; height: 1px; background: currentColor; }
.eyebrow.dark { color: #0e7b97; }
.hero h1 { margin: 0; max-width: 860px; font-size: clamp(58px, 5.8vw, 94px); line-height: 1.12; letter-spacing: -.065em; font-weight: 900; }
.hero h1 em, .intro h2 em, .beginner h2 em, .join h2 em { color: var(--cyan); font-style: normal; }
.hero-description { margin: 34px 0 36px; font-size: 20px; font-weight: 500; letter-spacing: -.03em; color: rgba(255,255,255,.78); }
.hero-actions { display: flex; gap: 12px; }
.expedition-card { align-self: end; margin-bottom: 18vh; min-height: 354px; padding: 32px; display: flex; flex-direction: column; background: rgba(2,17,28,.73); border: 1px solid rgba(150,231,255,.55); backdrop-filter: blur(16px); transition: transform .35s, border-color .35s; }
.expedition-card:hover { transform: translateY(-8px); border-color: var(--cyan); }
.expedition-top { display: flex; align-items: center; justify-content: space-between; font-family: var(--mono); font-size: 11px; color: var(--cyan); }
.calendar-icon { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid rgba(38,212,255,.45); border-radius: 50%; }
.calendar-icon svg { width: 18px; }
.expedition-card h2 { margin: 42px 0 22px; font-size: 36px; line-height: 1.23; letter-spacing: -.045em; }
.expedition-meta { padding: 18px 0; border-block: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; font-family: var(--mono); font-size: 11px; }
.expedition-meta span:first-child { color: var(--cyan); }
.expedition-link { margin-top: auto; padding-top: 22px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; font-weight: 700; }
.hero-footer { position: absolute; z-index: 2; inset: auto 0 34px; display: flex; align-items: center; gap: 18px; font-family: var(--mono); font-size: 9px; letter-spacing: .12em; color: rgba(255,255,255,.55); }
.scroll-line { width: 90px; height: 1px; background: rgba(255,255,255,.3); }
@keyframes heroZoom { from { transform: scale(1.09); } to { transform: scale(1.02); } }

.intro { color: var(--ink); background: #f5fafb; }
.intro-grid { display: grid; grid-template-columns: 240px 1fr; gap: 60px; }
.intro-kicker { display: flex; flex-direction: column; justify-content: space-between; }
.intro-index { margin: 0; font-family: var(--mono); color: #a7b5ba; font-size: 13px; }
.intro-content h2 { margin: 0; max-width: 1060px; font-size: clamp(44px, 4.4vw, 72px); line-height: 1.35; letter-spacing: -.06em; }
.intro-content h2 em { color: #0694b6; }
.intro-detail { margin-top: 80px; display: grid; grid-template-columns: minmax(260px, 420px) 1fr; align-items: end; gap: 80px; }
.intro-detail > p { margin: 0; color: #5b6c74; font-size: 16px; line-height: 1.95; }
.stats { margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.stats div { padding-top: 24px; border-top: 1px solid #becbd0; }
.stats dt { font-family: var(--mono); font-size: clamp(31px, 3vw, 48px); line-height: 1; color: #057e9a; }
.stats dt span { margin-left: 4px; font-size: 12px; }
.stats dd { margin: 12px 0 0; font-family: var(--mono); font-size: 9px; letter-spacing: .08em; color: #77888f; }

.schedule { color: var(--white); background: var(--navy-900); }
.section-heading { margin-bottom: 54px; display: flex; align-items: end; justify-content: space-between; gap: 40px; }
.section-heading h2 { margin: 0; font-size: clamp(42px, 4vw, 64px); letter-spacing: -.055em; }
.section-heading .eyebrow { margin-bottom: 16px; }
.trip-grid { display: grid; grid-template-columns: 1.22fr 1fr 1fr; min-height: 600px; gap: 14px; }
.trip-card { position: relative; min-height: 580px; overflow: hidden; background: var(--navy-800); }
.trip-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s ease; }
.trip-card:hover img { transform: scale(1.05); }
.trip-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(1,9,15,.12), rgba(1,9,15,.92)); }
.trip-number { position: absolute; top: 26px; right: 26px; font-family: var(--mono); font-size: 11px; color: rgba(255,255,255,.7); }
.trip-content { position: absolute; inset: auto 28px 32px; }
.trip-tag { display: inline-block; margin-bottom: 16px; color: var(--cyan); font-family: var(--mono); font-size: 10px; letter-spacing: .05em; }
.trip-card h3 { margin: 0 0 26px; font-size: clamp(28px, 2.35vw, 42px); line-height: 1.2; letter-spacing: -.045em; }
.trip-card p { margin: 0 0 5px; color: var(--white); font-family: var(--mono); font-size: 12px; }
.trip-card .trip-content > span:last-child { color: rgba(255,255,255,.55); font-family: var(--mono); font-size: 9px; letter-spacing: .06em; }
.trip-card > a { position: absolute; inset: 0; }
.schedule-note { margin-top: 16px; min-height: 92px; padding: 0 28px; display: grid; grid-template-columns: 110px 1fr 44px; align-items: center; border: 1px solid var(--line); }
.schedule-note > span { font-family: var(--mono); font-size: 9px; color: var(--cyan); }
.schedule-note p { margin: 0; font-size: 15px; }
.schedule-note p strong { margin-right: 24px; font-family: var(--mono); color: var(--cyan); }
.schedule-note a { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.2); border-radius: 50%; transition: border-color .2s, color .2s; }
.schedule-note a:hover { color: var(--cyan); border-color: var(--cyan); }

.logs { color: var(--ink); background: #f0f6f7; }
.section-heading.dark .eyebrow { color: #0d7b95; }
.section-copy { margin: 0; color: #66777e; font-size: 14px; line-height: 1.8; text-align: right; }
.log-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 320px; gap: 12px; }
.log-card { position: relative; margin: 0; overflow: hidden; background: #cdd9dc; }
.log-card-tall { grid-row: span 2; }
.log-card-wide { grid-column: span 2; }
.log-card img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.88); transition: transform .7s, filter .5s; }
.log-card:hover img { transform: scale(1.045); filter: saturate(1.08); }
.log-card figcaption { position: absolute; inset: auto 0 0; padding: 72px 22px 22px; display: flex; flex-direction: column; color: var(--white); background: linear-gradient(transparent, rgba(0,11,18,.85)); }
.log-card figcaption span { margin-bottom: 5px; font-family: var(--mono); font-size: 9px; color: var(--cyan-soft); }
.log-card figcaption strong { font-size: 18px; letter-spacing: -.025em; }
.log-card figcaption small { margin-top: 6px; color: rgba(255,255,255,.6); font-family: var(--mono); font-size: 9px; }
.instagram-banner { margin-top: 76px; min-height: 136px; padding: 20px 22px 20px 28px; display: grid; grid-template-columns: minmax(240px, .8fr) 1.25fr auto; align-items: center; gap: 28px; color: var(--white); background: var(--cyan); }
.instagram-copy { display: flex; align-items: center; gap: 18px; color: var(--navy-900); }
.instagram-icon { width: 46px; height: 46px; display: grid; place-items: center; border: 1px solid currentColor; border-radius: 50%; }
.instagram-icon svg { width: 22px; }
.instagram-copy div { display: flex; flex-direction: column; }
.instagram-copy strong { font-family: var(--mono); font-size: 14px; }
.instagram-copy div span { margin-top: 4px; font-size: 11px; }
.instagram-thumbs { height: 96px; display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; overflow: hidden; }
.instagram-thumbs img { width: 100%; height: 100%; object-fit: cover; }

.beginner { position: relative; min-height: 760px; display: flex; align-items: center; color: var(--white); background: #0a2839; overflow: hidden; }
.beginner::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 72px 72px; }
.beginner-photo { position: absolute; inset: 0 0 0 50%; overflow: hidden; }
.beginner-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, #0a2839 0%, rgba(10,40,57,.45) 30%, rgba(10,40,57,.08)); }
.beginner-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center; filter: saturate(.8) contrast(1.08); }
.beginner-grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 13vw; align-items: end; }
.beginner-copy h2 { margin: 0; font-size: clamp(54px, 6vw, 92px); line-height: 1.1; letter-spacing: -.065em; }
.beginner-copy > p { max-width: 520px; margin: 32px 0 34px; color: rgba(255,255,255,.7); font-size: 15px; line-height: 1.8; }
.beginner-steps { margin: 0; padding: 0; list-style: none; background: rgba(2,16,26,.78); border: 1px solid rgba(255,255,255,.18); backdrop-filter: blur(14px); }
.beginner-steps li { padding: 24px; display: grid; grid-template-columns: 46px 1fr; gap: 12px; border-bottom: 1px solid rgba(255,255,255,.14); }
.beginner-steps li:last-child { border: 0; }
.beginner-steps li > span { font-family: var(--mono); font-size: 10px; color: var(--cyan); }
.beginner-steps strong { display: block; margin-bottom: 6px; font-size: 16px; }
.beginner-steps p { margin: 0; color: rgba(255,255,255,.6); font-size: 12px; }

.join { position: relative; min-height: 760px; display: flex; align-items: center; color: var(--white); overflow: hidden; }
.join-bg { position: absolute; inset: 0; }
.join-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(1,10,17,.98), rgba(2,16,26,.7) 58%, rgba(2,16,26,.25)), linear-gradient(0deg, rgba(1,10,17,.75), transparent); }
.join-bg img { width: 100%; height: 100%; object-fit: cover; object-position: center 46%; }
.join-inner { position: relative; z-index: 1; }
.join h2 { margin: 0; font-size: clamp(60px, 7.2vw, 108px); line-height: 1.08; letter-spacing: -.07em; }
.join-inner > p { margin: 32px 0 38px; color: rgba(255,255,255,.68); font-size: 17px; line-height: 1.8; }
.join-actions { display: flex; gap: 12px; }

.site-footer { padding: 92px 0 26px; color: var(--white); background: var(--navy-950); }
.footer-top { padding-bottom: 80px; display: flex; align-items: start; justify-content: space-between; gap: 60px; }
.footer-brand { width: 180px; }
.footer-links { display: grid; grid-template-columns: repeat(2, 170px); gap: 56px; }
.footer-links div { display: flex; flex-direction: column; gap: 11px; }
.footer-links strong { margin-bottom: 10px; color: var(--cyan); font-family: var(--mono); font-size: 9px; letter-spacing: .12em; }
.footer-links a { color: rgba(255,255,255,.64); font-size: 13px; }
.footer-links a:hover { color: var(--cyan); }
.footer-bottom { padding-top: 24px; display: flex; justify-content: space-between; gap: 24px; border-top: 1px solid rgba(255,255,255,.12); color: rgba(255,255,255,.4); font-family: var(--mono); font-size: 8px; letter-spacing: .06em; }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1100px) {
  :root { --shell: min(100% - 48px, 1080px); }
  .site-header, .site-header.scrolled { height: 76px; }
  .header-inner { grid-template-columns: 1fr auto; }
  .header-cta { display: none; }
  .menu-toggle { z-index: 3; width: 44px; height: 44px; padding: 11px; display: flex; flex-direction: column; justify-content: center; gap: 5px; color: var(--white); background: transparent; border: 1px solid rgba(255,255,255,.25); }
  .menu-toggle span:not(.sr-only) { width: 100%; height: 1px; background: currentColor; transition: transform .25s, opacity .25s; }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .site-nav { position: fixed; inset: 0; padding: 120px 24px 50px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 28px; background: rgba(2,13,22,.98); opacity: 0; pointer-events: none; transform: translateY(-18px); transition: opacity .3s, transform .3s; }
  .site-nav a { font-size: 26px; }
  .site-nav.open { opacity: 1; pointer-events: auto; transform: none; }
  .hero-inner { grid-template-columns: 1fr 360px; gap: 36px; }
  .hero h1 { font-size: clamp(52px, 7vw, 76px); }
  .expedition-card { min-height: 320px; }
  .intro-grid { grid-template-columns: 150px 1fr; gap: 30px; }
  .intro-detail { grid-template-columns: 1fr; gap: 50px; }
  .trip-grid { grid-template-columns: 1fr 1fr; }
  .trip-card-featured { grid-column: span 2; min-height: 500px; }
  .log-grid { grid-template-columns: repeat(3, 1fr); }
  .instagram-banner { grid-template-columns: 1fr auto; }
  .instagram-thumbs { grid-row: 2; grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  :root { --shell: calc(100% - 36px); }
  .section { padding: 92px 0; }
  .brand { width: 126px; }
  .hero { min-height: 820px; height: auto; }
  .hero-image { background-image: linear-gradient(90deg, rgba(1,10,18,.93), rgba(2,17,29,.35)), linear-gradient(0deg, var(--navy-950), transparent 55%), url("assets/images/hero-divers.webp"); background-position: 58% center; }
  .hero-grid { background-size: 56px 56px; }
  .hero-inner { min-height: 820px; padding: 130px 0 100px; display: flex; flex-direction: column; align-items: stretch; justify-content: center; gap: 48px; }
  .hero h1 { font-size: clamp(43px, 12.3vw, 60px); line-height: 1.16; }
  .hero-description { margin: 24px 0 28px; font-size: 17px; }
  .mobile-only { display: initial; }
  .hero-actions { align-items: stretch; }
  .hero-actions .button { flex: 1; padding-inline: 12px; }
  .expedition-card { align-self: stretch; min-height: 252px; margin: 0; padding: 24px; }
  .expedition-card h2 { margin: 24px 0 16px; font-size: 28px; }
  .hero-footer { bottom: 20px; }
  .hero-footer span:last-child { display: none; }
  .eyebrow { font-size: 9px; }
  .intro-grid { grid-template-columns: 1fr; gap: 30px; }
  .intro-kicker { flex-direction: row; }
  .intro-content h2 { font-size: 39px; line-height: 1.38; }
  .intro-detail { margin-top: 48px; gap: 42px; }
  .stats { grid-template-columns: 1fr; }
  .section-heading { margin-bottom: 36px; align-items: start; flex-direction: column; }
  .section-heading h2 { font-size: 40px; }
  .section-heading > .text-link { display: none; }
  .trip-grid { display: block; }
  .trip-card, .trip-card-featured { min-height: 480px; margin-bottom: 12px; }
  .trip-card h3 { font-size: 35px; }
  .schedule-note { padding: 18px; grid-template-columns: 1fr 40px; }
  .schedule-note > span { grid-column: 1 / -1; margin-bottom: 8px; }
  .schedule-note p strong { margin-right: 8px; }
  .section-copy { text-align: left; }
  .log-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 260px; }
  .log-card-tall { grid-row: span 2; }
  .log-card-wide { grid-column: span 2; }
  .log-card figcaption strong { font-size: 15px; }
  .instagram-banner { margin-top: 52px; padding: 24px; grid-template-columns: 1fr; }
  .instagram-thumbs { grid-row: auto; grid-column: auto; grid-template-columns: repeat(3, 1fr); height: 96px; }
  .instagram-thumbs img:nth-child(n+4) { display: none; }
  .instagram-banner .button { width: 100%; }
  .beginner { min-height: 900px; align-items: end; }
  .beginner-photo { inset: 0; }
  .beginner-photo::after { background: linear-gradient(0deg, #0a2839 25%, rgba(10,40,57,.35) 70%, rgba(10,40,57,.1)); }
  .beginner-grid { grid-template-columns: 1fr; gap: 52px; }
  .beginner-copy h2 { font-size: 58px; }
  .beginner-steps { margin-bottom: -25px; }
  .join { min-height: 720px; }
  .join-bg::after { background: linear-gradient(90deg, rgba(1,10,17,.9), rgba(2,16,26,.45)), linear-gradient(0deg, rgba(1,10,17,.9), transparent); }
  .join h2 { font-size: 61px; }
  .join-actions { flex-direction: column; }
  .footer-top { flex-direction: column; }
  .footer-links { width: 100%; grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 440px) {
  .hero-actions { flex-direction: column; }
  .log-grid { grid-template-columns: 1fr; grid-auto-rows: 340px; }
  .log-card-tall, .log-card-wide { grid-row: auto; grid-column: auto; }
  .instagram-thumbs { grid-template-columns: repeat(2, 1fr); }
  .instagram-thumbs img:nth-child(3) { display: none; }
}

/* Tour detail page */
body.tour-mode { background: #f3f8f9; }
body.tour-mode .site-header:not(.scrolled) { background: linear-gradient(180deg, rgba(2,12,20,.62), transparent); }
.tour-view { display: none; }
body.tour-mode .tour-view { display: block; }
body.tour-mode .home-view { display: none; }
.tour-hero { position: relative; min-height: 820px; height: min(92svh, 980px); overflow: hidden; color: var(--white); background: var(--navy-950); }
.tour-hero-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; animation: detailZoom 14s ease-out both; }
.tour-hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(1,10,17,.97) 0%, rgba(2,16,26,.78) 43%, rgba(2,16,26,.18) 80%), linear-gradient(0deg, rgba(2,12,20,.94), transparent 52%); }
.tour-hero-grid { position: absolute; inset: 0; opacity: .12; background-image: linear-gradient(rgba(255,255,255,.14) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.14) 1px, transparent 1px); background-size: 80px 80px; mask-image: linear-gradient(90deg, #000, transparent 78%); }
.tour-hero-inner { position: relative; z-index: 2; height: 100%; padding-top: 150px; display: flex; flex-direction: column; }
.breadcrumb { display: flex; align-items: center; gap: 11px; color: rgba(255,255,255,.46); font: 9px var(--mono); letter-spacing: .1em; }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb strong { max-width: 230px; overflow: hidden; color: rgba(255,255,255,.78); font-weight: 400; text-overflow: ellipsis; white-space: nowrap; }
.tour-hero-copy { margin: auto 0; max-width: 850px; padding: 40px 0 62px; }
.tour-hero-copy .eyebrow { margin-bottom: 24px; }
.tour-badges { margin-bottom: 25px; display: flex; gap: 8px; }
.tour-badges span { padding: 8px 11px; border: 1px solid rgba(255,255,255,.28); color: rgba(255,255,255,.76); font: 10px var(--mono); letter-spacing: .05em; }
.tour-badges .status-badge { border-color: var(--cyan); color: var(--cyan); background: rgba(38,212,255,.08); }
.tour-hero h1 { margin: 0; max-width: 900px; font-size: clamp(56px, 6.2vw, 100px); line-height: 1.08; letter-spacing: -.07em; word-break: keep-all; }
.tour-hero-description { max-width: 650px; margin: 30px 0 0; color: rgba(255,255,255,.72); font-size: 17px; line-height: 1.85; word-break: keep-all; }
.tour-summary { min-height: 116px; display: grid; grid-template-columns: 1fr 1.25fr .8fr 150px; border-top: 1px solid rgba(255,255,255,.24); }
.tour-summary > div { padding: 26px 32px 22px 0; display: flex; flex-direction: column; gap: 9px; border-right: 1px solid rgba(255,255,255,.14); }
.tour-summary > div + div { padding-left: 32px; }
.tour-summary span { color: var(--cyan); font: 9px var(--mono); letter-spacing: .13em; }
.tour-summary strong { font-size: 14px; font-weight: 600; }
.tour-summary > a { display: flex; align-items: center; justify-content: flex-end; gap: 18px; color: var(--cyan); font: 10px var(--mono); letter-spacing: .1em; }
.tour-summary > a svg { width: 17px; }
@keyframes detailZoom { from { transform: scale(1.06); } to { transform: scale(1); } }
.tour-intro { padding: 150px 0; color: var(--ink); background: #f3f8f9; }
.tour-intro-grid { display: grid; grid-template-columns: 150px minmax(0, 1fr) 370px; gap: clamp(40px, 6vw, 100px); align-items: start; }
.section-marker { min-height: 340px; display: flex; flex-direction: column; justify-content: space-between; color: #8c9ca2; font: 10px var(--mono); letter-spacing: .12em; }
.section-marker span { color: #0d7b95; }
.section-marker p { margin: 0; writing-mode: vertical-rl; transform: rotate(180deg); }
.tour-intro-copy h2 { margin: 0; font-size: clamp(44px, 4.2vw, 69px); line-height: 1.28; letter-spacing: -.06em; word-break: keep-all; }
.tour-intro-copy h2 em, .flow-heading h2 em, .safety-copy h2 em { color: #0798ba; font-style: normal; }
.tour-summary-rich { max-width: 680px; margin: 48px 0 0; color: #53666e; font-size: 17px; line-height: 2; word-break: keep-all; overflow-wrap: anywhere; }
.tour-summary-rich p { margin: 0 0 1em; }
.tour-summary-rich h2, .tour-summary-rich h3, .tour-summary-rich h4 { margin: 1.3em 0 .45em; color: var(--ink); line-height: 1.45; letter-spacing: -.035em; }
.tour-summary-rich h2 { font-size: 30px; }
.tour-summary-rich h3 { font-size: 24px; }
.tour-summary-rich h4 { font-size: 20px; }
.tour-summary-rich ul, .tour-summary-rich ol { margin: 1em 0; padding-left: 1.4em; }
.tour-summary-rich li + li { margin-top: .25em; }
.tour-summary-rich blockquote { margin: 1.25em 0; padding: 5px 0 5px 22px; color: #31505b; border-left: 3px solid #0798ba; }
.tour-summary-rich a { color: #0789a8; text-decoration: underline; text-underline-offset: 3px; }
.tour-facts { border-top: 2px solid #0a1a22; }
.tour-facts div { min-height: 82px; padding: 20px 4px; display: grid; grid-template-columns: 88px 1fr; gap: 20px; align-items: center; border-bottom: 1px solid #c8d3d6; }
.tour-facts span { color: #7a8a90; font-size: 11px; }
.tour-facts strong { font-size: 14px; line-height: 1.55; }
.tour-experience { padding: 140px 0 150px; color: var(--white); background: var(--navy-900); }
.detail-heading { margin-bottom: 66px; display: grid; grid-template-columns: 1fr 410px; align-items: end; gap: 70px; }
.detail-heading h2 { margin: 0; font-size: clamp(48px, 5vw, 78px); line-height: 1.16; letter-spacing: -.06em; }
.detail-heading > p { margin: 0 0 8px; color: rgba(255,255,255,.6); font-size: 14px; line-height: 1.9; }
.experience-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1px; border-block: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.18); }
.experience-card { position: relative; min-height: 330px; padding: 42px 38px; overflow: hidden; background: var(--navy-900); }
.experience-card::after { content: attr(data-index); position: absolute; right: 22px; bottom: -32px; color: rgba(255,255,255,.035); font: 170px/1 var(--mono); }
.experience-card > span { color: var(--cyan); font: 10px var(--mono); letter-spacing: .1em; }
.experience-card h3 { margin: 88px 0 18px; font-size: 29px; letter-spacing: -.04em; }
.experience-card p { position: relative; z-index: 1; max-width: 310px; margin: 0; color: rgba(255,255,255,.58); font-size: 13px; line-height: 1.85; }
.tour-flow { padding: 150px 0; color: var(--ink); background: #eef4f5; }
.tour-flow-grid { display: grid; grid-template-columns: minmax(300px, .8fr) 1.2fr; gap: clamp(70px, 10vw, 170px); }
.flow-heading { position: sticky; top: 130px; align-self: start; }
.flow-heading h2 { margin: 0; font-size: clamp(52px, 5vw, 78px); line-height: 1.12; letter-spacing: -.065em; }
.flow-heading > p:last-child { max-width: 430px; margin: 38px 0 0; color: #62747b; font-size: 14px; line-height: 1.9; }
.flow-list { margin: 0; padding: 0; list-style: none; border-top: 2px solid var(--ink); }
.flow-item { min-height: 190px; padding: 34px 0; display: grid; grid-template-columns: 100px 1fr; border-bottom: 1px solid #bdcbd0; }
.flow-day { padding-top: 3px; color: #0788a7; font: 11px var(--mono); letter-spacing: .08em; }
.flow-item h3 { margin: 0 0 15px; font-size: 24px; letter-spacing: -.035em; }
.flow-item p { margin: 0; color: #64767d; font-size: 13px; line-height: 1.8; }
.safety-section { padding: 0 0 150px; color: var(--white); background: #eef4f5; }
.safety-panel { min-height: 390px; padding: 64px 68px; display: grid; grid-template-columns: 170px 1fr auto; align-items: center; gap: 70px; background: #0b2b3e; background-image: radial-gradient(circle at 85% 20%, rgba(38,212,255,.13), transparent 28%), linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: auto, 64px 64px, 64px 64px; }
.safety-index { color: rgba(255,255,255,.13); font: 52px/.9 var(--mono); letter-spacing: -.09em; }
.safety-copy h2 { margin: 0; font-size: clamp(38px, 3.4vw, 56px); line-height: 1.25; letter-spacing: -.055em; }
.safety-copy h2 em { color: var(--cyan); }
.safety-copy > p:last-child { max-width: 650px; margin: 24px 0 0; color: rgba(255,255,255,.62); font-size: 13px; line-height: 1.85; }
.safety-panel > .button { min-width: 210px; }
.related-tours { padding: 140px 0; color: var(--ink); background: #fff; }
.related-heading { margin-bottom: 52px; display: flex; align-items: end; justify-content: space-between; gap: 40px; }
.related-heading h2 { margin: 0; font-size: clamp(42px, 4vw, 62px); letter-spacing: -.055em; }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.related-card { position: relative; min-height: 430px; overflow: hidden; color: #fff; background: var(--navy-800); }
.related-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s; }
.related-card:hover img { transform: scale(1.04); }
.related-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 30%, rgba(1,10,17,.94)); }
.related-card-content { position: absolute; z-index: 2; inset: auto 30px 30px; }
.related-card-content span { color: var(--cyan); font: 9px var(--mono); letter-spacing: .08em; }
.related-card-content h3 { margin: 12px 0 14px; font-size: 32px; letter-spacing: -.045em; }
.related-card-content p { margin: 0; color: rgba(255,255,255,.64); font: 10px var(--mono); }
.related-card > a { position: absolute; z-index: 3; inset: 0; }
.tour-not-found { min-height: 100svh; padding: 200px 0 120px; color: #fff; background: var(--navy-950); }
.tour-not-found span { color: var(--cyan); font: 10px var(--mono); }
.tour-not-found h1 { margin: 30px 0; font-size: clamp(56px, 7vw, 100px); line-height: 1.08; letter-spacing: -.07em; }
.tour-not-found p { margin-bottom: 40px; color: rgba(255,255,255,.6); }
@media (max-width: 1100px) {
  .tour-intro-grid { grid-template-columns: 80px 1fr; }
  .tour-facts { grid-column: 2; }
  .safety-panel { grid-template-columns: 100px 1fr; }
  .safety-panel > .button { grid-column: 2; justify-self: start; }
}
@media (max-width: 760px) {
  .tour-hero { min-height: 760px; height: auto; }
  .tour-hero-shade { background: linear-gradient(90deg, rgba(1,10,17,.9), rgba(2,16,26,.38)), linear-gradient(0deg, rgba(2,12,20,.97), transparent 66%); }
  .tour-hero-inner { min-height: 760px; padding-top: 112px; }
  .tour-hero-copy { padding: 75px 0 60px; }
  .tour-hero h1 { font-size: clamp(46px, 13.6vw, 66px); line-height: 1.12; }
  .tour-hero-description { font-size: 15px; line-height: 1.75; }
  .tour-summary { grid-template-columns: 1fr 1fr; }
  .tour-summary > div { min-height: 86px; padding: 18px 16px 16px 0; }
  .tour-summary > div + div { padding-left: 16px; }
  .tour-summary > div:nth-child(2) { border-right: 0; }
  .tour-summary > div:nth-child(3) { padding-left: 0; border-top: 1px solid rgba(255,255,255,.14); }
  .tour-summary > a { border-top: 1px solid rgba(255,255,255,.14); }
  .tour-intro, .tour-experience, .tour-flow, .related-tours { padding: 92px 0; }
  .tour-intro-grid { display: block; }
  .section-marker { display: none; }
  .tour-intro-copy h2 { font-size: 42px; }
  .tour-summary-rich { margin-top: 30px; font-size: 15px; }
  .tour-facts { margin-top: 60px; }
  .detail-heading { display: block; }
  .detail-heading h2 { font-size: 48px; }
  .detail-heading > p { margin-top: 28px; }
  .experience-grid { grid-template-columns: 1fr; }
  .experience-card { min-height: 260px; padding: 34px 24px; border-bottom: 1px solid rgba(255,255,255,.18); }
  .experience-card:last-child { border-bottom: 0; }
  .experience-card h3 { margin-top: 55px; }
  .tour-flow-grid { display: block; }
  .flow-heading { position: static; }
  .flow-heading > p:last-child { margin-bottom: 56px; }
  .flow-item { grid-template-columns: 70px 1fr; }
  .safety-section { padding-bottom: 92px; }
  .safety-panel { width: 100%; padding: 60px 18px; display: block; }
  .safety-index { display: none; }
  .safety-copy h2 { font-size: 39px; }
  .safety-panel > .button { margin-top: 34px; width: 100%; }
  .related-heading { display: block; }
  .related-heading .text-link { margin-top: 26px; }
  .related-grid { grid-template-columns: 1fr; }
  .related-card { min-height: 360px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .tour-hero-image { animation: none; }
}