/* Fall In, Kazaks — colours taken from the OBA logo */
:root {
  --night: #070b14;
  --navy: #12385e;
  --navy-2: #0d2440;
  --red: #e31b23;
  --amber: #ffb648;
  --trek: #2f9e5b;
  --ride: #e31b23;
  --cream: #f4efe6;
  --muted: #a9b3c4;
  --card: #101826;
  --line: rgba(255,255,255,.1);
  --radius: 18px;
  --stencil: "Black Ops One", "Arial Black", Impact, sans-serif;
  --head: "Oswald", "Arial Narrow", sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--night);
  color: var(--cream);
  font: 400 17px/1.55 var(--body);
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { margin: 0; line-height: 1.05; }
.stencil { font-family: var(--stencil); font-weight: 400; letter-spacing: .5px; text-transform: uppercase; }
.amber { color: var(--amber); }
.red { color: var(--red); }
.center { text-align: center; }
.note { font-size: .82rem; color: var(--muted); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px 20px calc(72px + env(safe-area-inset-bottom));
  overflow: hidden;
  isolation: isolate;
}
.hero__bg {
  position: absolute; inset: 0; z-index: -2;
  background: center 35% / cover no-repeat;
  animation: kenburns 22s ease-in-out infinite alternate;
}
.hero__shade {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(7,11,20,.55) 0%, rgba(7,11,20,0) 22%, rgba(7,11,20,.15) 45%, rgba(7,11,20,.88) 78%, var(--night) 100%);
}
@keyframes kenburns { from { transform: scale(1.04); } to { transform: scale(1.16) translateY(-2%); } }

.hero__brand {
  position: absolute; top: calc(16px + env(safe-area-inset-top)); left: 20px;
  display: flex; align-items: center; gap: 10px;
  font: 700 15px/1.1 var(--head); letter-spacing: 1px; text-transform: uppercase;
}
.hero__brand img { width: 56px; height: 56px; filter: drop-shadow(0 4px 10px rgba(0,0,0,.5)); }
.hero__brand small { font: 400 11px var(--body); letter-spacing: .3px; text-transform: none; opacity: .85; }

.hero__body { max-width: 560px; }
.eyebrow {
  margin: 0 0 10px;
  font: 500 13px var(--head); letter-spacing: 3px; text-transform: uppercase;
  color: var(--amber);
}
.hero h1 { font-size: clamp(3.1rem, 15vw, 5.6rem); text-shadow: 0 4px 24px rgba(0,0,0,.5); }
.hero__tag { margin: 14px 0 18px; font-size: 1.1rem; color: #e6e1d6; }

.countdown {
  display: inline-flex; flex-direction: column;
  padding: 10px 16px; margin-bottom: 18px;
  border: 1px solid rgba(255,182,72,.45); border-radius: 12px;
  background: rgba(7,11,20,.55); backdrop-filter: blur(6px);
}
.countdown__label { font-size: .72rem; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted); }
.countdown__time { font: 700 1.35rem var(--head); letter-spacing: 1px; color: var(--amber); font-variant-numeric: tabular-nums; }
.countdown.closed { border-color: var(--line); }
.countdown.closed .countdown__time { color: var(--cream); font-size: 1rem; }

.hero__ctas { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.scroll-cue {
  position: absolute; bottom: calc(14px + env(safe-area-inset-bottom)); left: 50%; transform: translateX(-50%);
  font-size: 28px; text-decoration: none; opacity: .7; animation: bob 1.8s ease-in-out infinite;
}
@keyframes bob { 50% { transform: translate(-50%, 6px); } }

/* ---------- Buttons ---------- */
.btn {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 56px; padding: 12px 16px;
  border: 0; border-radius: 14px; cursor: pointer;
  font: 700 1.05rem var(--head); letter-spacing: 1px; text-transform: uppercase;
  color: #fff; text-decoration: none; text-align: center;
  box-shadow: 0 8px 24px rgba(0,0,0,.35);
  transition: transform .15s ease, filter .15s ease;
}
.btn small { font: 600 .75rem var(--body); letter-spacing: .5px; opacity: .9; text-transform: none; }
.btn:active { transform: scale(.97); }
.btn:hover { filter: brightness(1.08); }
.btn--trek { background: linear-gradient(135deg, #2f9e5b, #1f7a43); }
.btn--ride { background: linear-gradient(135deg, #e31b23, #a90f15); }
.btn--share { background: linear-gradient(135deg, #25d366, #128c4a); margin: 8px auto 0; padding-inline: 28px; }
.btn--block { width: 100%; margin-top: 20px; font-size: 1.1rem; }

/* ---------- Nostalgia ---------- */
.remember {
  padding: 72px 24px 80px;
  max-width: 640px; margin: 0 auto;
  background: radial-gradient(120% 60% at 50% 0%, rgba(18,56,94,.45), transparent 70%);
}
.remember .kicker { font: 500 14px var(--head); letter-spacing: 4px; text-transform: uppercase; color: var(--amber); margin: 0 0 18px; }
.remember .line { font: 500 clamp(1.4rem, 6.4vw, 2rem)/1.25 var(--head); margin: 0 0 20px; }
.remember .dim { color: var(--muted); font-size: clamp(1.1rem, 5vw, 1.5rem); margin-top: 36px; }
.remember .big { font-family: var(--stencil); font-size: clamp(1.8rem, 9vw, 2.8rem); margin-top: 36px; }

/* ---------- Generations ---------- */
.gens { padding: 8px 0 64px; }
.marquee {
  overflow: hidden; padding: 14px 0;
  border-block: 1px solid var(--line);
  background: linear-gradient(90deg, var(--navy-2), var(--navy), var(--navy-2));
}
.marquee__track { display: flex; gap: 28px; width: max-content; animation: marquee 28s linear infinite; }
.marquee__track span { font: 700 1.3rem var(--head); letter-spacing: 1px; color: rgba(255,255,255,.85); white-space: nowrap; }
.marquee__track span.gold { color: var(--amber); }
@keyframes marquee { to { transform: translateX(-50%); } }

.gens__copy { max-width: 640px; margin: 0 auto; padding: 40px 24px 0; }
.gens h2 { font: 700 clamp(2rem, 9vw, 2.8rem) var(--head); text-transform: uppercase; margin-bottom: 16px; }
.pillars { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 12px; }
.pillars li {
  padding: 14px 16px; border-radius: 14px; background: var(--card); border: 1px solid var(--line);
  color: var(--muted);
}
.pillars b { display: block; font: 700 1.2rem var(--head); text-transform: uppercase; letter-spacing: 1px; color: var(--cream); }

/* ---------- Events ---------- */
.events { padding: 8px 16px 40px; max-width: 680px; margin: 0 auto; }
.section-title {
  font: 700 clamp(1.8rem, 8vw, 2.4rem) var(--head); text-transform: uppercase; letter-spacing: 1px;
  text-align: center; margin: 24px 0 24px;
}
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; margin-bottom: 28px; scroll-margin-top: 16px;
  box-shadow: 0 20px 50px rgba(0,0,0,.4);
}
.card--trek { border-top: 4px solid var(--trek); }
.card--ride { border-top: 4px solid var(--ride); }
.card__media {
  position: relative; aspect-ratio: 4 / 3;
  background: center / cover no-repeat;
  display: flex; flex-wrap: wrap; align-content: flex-start; gap: 8px; padding: 14px;
}
.card__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, var(--card)); }
.badge {
  position: relative; z-index: 1;
  padding: 6px 10px; border-radius: 999px;
  font: 600 .72rem var(--body); letter-spacing: .6px; text-transform: uppercase;
  background: rgba(7,11,20,.7); backdrop-filter: blur(4px);
}
.badge--hot { background: var(--amber); color: #1b1200; }
.card__body { padding: 4px 20px 24px; }
.card h3 { font-size: clamp(1.9rem, 9vw, 2.5rem); }
.card--trek h3 { color: #8fe0ae; }
.card--ride h3 { color: #ff7a7f; }
.card__sub { margin: 6px 0 18px; color: var(--muted); font-weight: 600; }
.facts { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.facts li { position: relative; padding-left: 30px; }
.facts li > span:first-child { position: absolute; left: 0; top: 0; }
.facts small { color: var(--muted); }
.card__pitch { margin: 18px 0 14px; padding-left: 14px; border-left: 3px solid var(--amber); color: #e6e1d6; }

details {
  border-top: 1px solid var(--line);
}
details summary {
  cursor: pointer; list-style: none; padding: 14px 0;
  font: 600 1rem var(--head); letter-spacing: 1px; text-transform: uppercase;
  display: flex; justify-content: space-between; align-items: center;
}
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; font-size: 1.4rem; color: var(--amber); transition: transform .2s; }
details[open] summary::after { transform: rotate(45deg); }
details > *:not(summary) { margin-top: 0; color: #d9d4ca; font-size: .95rem; }
.plain { padding-left: 18px; margin-bottom: 14px; }
.plain li { margin-bottom: 6px; }

.timeline { list-style: none; padding: 0; margin: 0 0 10px; }
.timeline li { display: grid; grid-template-columns: 92px 1fr; gap: 8px; padding: 5px 0; border-bottom: 1px dashed var(--line); }
.timeline li:has(b) { grid-template-columns: 1fr; border: 0; padding-top: 12px; color: var(--amber); }
.timeline time { font-weight: 600; color: var(--muted); font-variant-numeric: tabular-nums; }

.contacts { display: grid; gap: 10px; margin-top: 14px; }
.wa {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: 14px; text-decoration: none;
  background: rgba(37,211,102,.1); border: 1px solid rgba(37,211,102,.35);
}
.wa b { color: #fff; }
.wa small { display: block; color: var(--muted); font-size: .8rem; }
.wa__icon {
  flex: 0 0 36px; height: 36px; border-radius: 50%; background: #25d366 center / 22px no-repeat;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='white'%3E%3Cpath d='M12 2a10 10 0 0 0-8.6 15.1L2 22l5-1.3A10 10 0 1 0 12 2zm0 18.2c-1.5 0-3-.4-4.2-1.2l-.3-.2-3 .8.8-2.9-.2-.3A8.2 8.2 0 1 1 12 20.2zm4.5-6.1c-.2-.1-1.5-.7-1.7-.8s-.4-.1-.6.1-.7.8-.8 1-.3.2-.5.1a6.7 6.7 0 0 1-3.3-2.9c-.3-.4.3-.4.7-1.3.1-.2 0-.3 0-.4l-.8-1.8c-.2-.5-.4-.4-.6-.4h-.5a1 1 0 0 0-.7.3 3 3 0 0 0-.9 2.2 5.2 5.2 0 0 0 1.1 2.7 11.8 11.8 0 0 0 4.5 4c1.7.7 2.3.8 3.2.6.5-.1 1.5-.6 1.7-1.2s.2-1.1.2-1.2-.2-.2-.4-.3z'/%3E%3C/svg%3E");
}
.cal { display: inline-block; margin-top: 14px; font-size: .9rem; color: var(--amber); text-decoration: none; }

/* ---------- Steps ---------- */
.steps { max-width: 640px; margin: 0 auto; padding: 16px 20px 40px; }
.steps ol { list-style: none; counter-reset: s; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li {
  counter-increment: s; position: relative;
  padding: 16px 16px 16px 64px; border-radius: 14px; background: var(--card); border: 1px solid var(--line);
}
.steps li::before {
  content: counter(s); position: absolute; left: 16px; top: 14px;
  width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center;
  font: 700 1.1rem var(--head); background: var(--red); color: #fff;
}

/* ---------- Gallery ---------- */
.gallery { padding: 8px 0 40px; }
.gallery__strip {
  display: flex; gap: 12px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 0 20px 12px; scrollbar-width: none;
}
.gallery__strip::-webkit-scrollbar { display: none; }
.gallery figure { flex: 0 0 72%; max-width: 320px; margin: 0; scroll-snap-align: center; position: relative; }
.gallery img { aspect-ratio: 3 / 4; object-fit: cover; width: 100%; border-radius: 14px; }
.gallery figcaption {
  position: absolute; left: 12px; bottom: 10px;
  font: 600 .95rem var(--head); letter-spacing: 1px; text-transform: uppercase; text-shadow: 0 2px 8px #000;
}

/* ---------- Share ---------- */
.share {
  text-align: center; padding: 56px 24px 64px;
  background: radial-gradient(100% 80% at 50% 100%, rgba(227,27,35,.28), transparent 70%);
}
.share h2 { font-size: clamp(1.8rem, 8.5vw, 2.6rem); margin-bottom: 12px; }
.share p { max-width: 480px; margin: 0 auto 12px; color: #e6e1d6; }

/* ---------- Footer ---------- */
.footer {
  text-align: center; padding: 40px 24px calc(110px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem;
}
.footer img { margin: 0 auto 10px; }
.signoff { margin: 0 0 16px; font: 700 1.5rem var(--head); letter-spacing: 2px; color: var(--cream); }
.signoff small { display: block; margin-top: 2px; font: 500 .8rem var(--head); letter-spacing: 4px; text-transform: uppercase; color: var(--amber); }
.wa--footer { max-width: 340px; margin: 0 auto; text-align: left; }
.tags { margin-top: 18px; }
.privacy { font-size: .78rem; }
.credits { max-width: 560px; margin: 12px auto 0; border: 0; text-align: left; }
.credits summary { justify-content: center; gap: 8px; font-size: .8rem; color: var(--muted); }
.credits p { font-size: .75rem; color: var(--muted); }

/* ---------- Sticky register dock ---------- */
.dock {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(7,11,20,.88); backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  transform: translateY(110%); transition: transform .3s ease;
}
.dock.show { transform: none; }
.dock a {
  display: grid; place-items: center; min-height: 48px; border-radius: 12px; text-decoration: none;
  font: 700 .95rem var(--head); letter-spacing: .8px; text-transform: uppercase; color: #fff;
}
.dock__trek { background: var(--trek); }
.dock__ride { background: var(--ride); }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Larger screens: keep the vertical poster feel ---------- */
@media (min-width: 900px) {
  .hero { padding-left: max(40px, calc(50vw - 420px)); }
  .hero__brand { left: max(40px, calc(50vw - 420px)); }
  .gallery__strip { justify-content: center; }
  .gallery figure { flex-basis: 240px; }
  .dock { left: 50%; right: auto; width: 520px; transform: translate(-50%, 110%); border-radius: 16px 16px 0 0; }
  .dock.show { transform: translate(-50%, 0); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__bg, .marquee__track, .scroll-cue { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
}