:root {
  --ink: #eef0ea;
  --ink-2: rgba(238, 240, 234, .68);
  --ink-3: rgba(238, 240, 234, .42);
  --glass: rgba(10, 18, 22, .38);
  --glass-2: rgba(10, 18, 22, .56);
  --line: rgba(238, 240, 234, .16);
  --brass: #d3b47c;
  --f: 'Familjen Grotesk', system-ui, sans-serif;
  --m: 'Martian Mono', ui-monospace, monospace;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { background: #0b1418; }
body { margin: 0; color: var(--ink); font-family: var(--f); font-size: 15px; line-height: 1.45; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
button { font: inherit; color: inherit; }
#stage { position: fixed; inset: 0; width: 100vw; height: 100vh; height: 100dvh; display: block; touch-action: pan-y; }

/* logo */
[data-logo] svg { display: block; height: 100%; width: auto; overflow: visible; }

/* loader */
.veil { position: fixed; inset: 0; z-index: 30; background: #0b1418; display: grid; place-items: center; transition: opacity 1.1s ease, visibility 1.1s; }
.veil.out { opacity: 0; visibility: hidden; }
.veil-in { display: grid; justify-items: center; gap: 18px; color: var(--ink); }
.veil-sym { height: 56px; }
.veil-word { height: 22px; }
.veil-bar { width: 180px; height: 1px; background: var(--line); overflow: hidden; }
.veil-bar i { display: block; height: 100%; width: 0; background: var(--ink); transition: width .4s ease; }
.veil-note { font: 300 10px/1 var(--m); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); }

/* top bar */
.bar { position: fixed; z-index: 10; top: 0; left: 0; right: 0; display: grid; grid-template-columns: auto auto 1fr auto; align-items: center; gap: 28px; padding: 20px 28px; pointer-events: none; }
.bar > * { pointer-events: auto; }
/* a soft shade under the bar so the mark and the sea readout hold over a bright noon sky */
.bar::before { content: ''; position: absolute; inset: 0 0 -40px; z-index: -1; pointer-events: none; background: linear-gradient(180deg, rgba(6, 10, 13, .42), rgba(6, 10, 13, .16) 55%, transparent); }
.mark { display: flex; align-items: center; gap: 12px; color: var(--ink); text-decoration: none; }
.mark-sym { height: 30px; }
.mark-word { height: 15px; }
.bar-model { margin: 0; display: grid; font-size: 13px; line-height: 1.2; padding-left: 22px; border-left: 1px solid var(--line); }
.bar-model b { font-weight: 600; }
.bar-model span { color: var(--ink-2); }
.bar-sea { margin: 0; justify-self: end; display: flex; gap: 16px; font: 300 11px/1 var(--m); color: var(--ink-2); letter-spacing: .02em; }
.bar-sea span + span::before { content: ''; display: inline-block; width: 4px; height: 4px; border-radius: 50%; background: var(--ink-3); margin-right: 16px; vertical-align: middle; }
.bar-cta { color: var(--ink); text-decoration: none; font-weight: 500; font-size: 13px; padding: 10px 16px; border: 1px solid var(--line); border-radius: 2px; background: var(--glass); backdrop-filter: blur(14px) saturate(1.3); -webkit-backdrop-filter: blur(14px) saturate(1.3); }
.bar-cta:hover { border-color: var(--ink-2); }

/* hero + chapters scroll over the fixed stage */
main { position: relative; z-index: 2; pointer-events: none; }
main a, main button { pointer-events: auto; }
.hero { height: 100vh; height: 100svh; display: flex; align-items: flex-end; padding: 0 28px 150px; }
.hero-copy { max-width: 440px; text-shadow: 0 1px 2px rgba(0, 0, 0, .18), 0 2px 30px rgba(4, 10, 14, .45); }
.hero-kicker { margin: 0 0 10px; font: 300 11px/1.4 var(--m); color: var(--ink-2); letter-spacing: .04em; }
.hero h1 { margin: 0; font-weight: 500; font-size: clamp(56px, 8.4vw, 132px); line-height: .86; letter-spacing: -.045em; }
.hero-lede { margin: 18px 0 0; color: var(--ink-2); font-size: 16px; max-width: 400px; }

.ch { min-height: 150vh; padding: 0 28px; display: flex; align-items: flex-start; }
.ch-card { position: sticky; top: 22vh; width: min(380px, 100%); padding: 24px 24px 22px; background: var(--glass); border: 1px solid var(--line); backdrop-filter: blur(18px) saturate(1.35); -webkit-backdrop-filter: blur(18px) saturate(1.35); border-radius: 3px; margin-bottom: 40vh; }
.ch-no { margin: 0 0 14px; font: 400 10px/1 var(--m); text-transform: uppercase; letter-spacing: .16em; color: var(--brass); }
.ch h2 { margin: 0 0 12px; font-weight: 500; font-size: 28px; line-height: 1.05; letter-spacing: -.02em; }
.ch-card > p:not(.ch-no) { margin: 0; color: var(--ink-2); }
.ch-spec { margin: 20px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; border-top: 1px solid var(--line); padding-top: 14px; }
.ch-spec dt { font: 300 9.5px/1 var(--m); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); }
.ch-spec dd { margin: 6px 0 0; font-size: 15px; font-weight: 500; }
.ch-act { margin-top: 18px; }
.ch-act button, .ghost { cursor: pointer; background: var(--ink); color: #0d171c; border: 0; padding: 11px 16px; border-radius: 2px; font-weight: 600; font-size: 13px; }
.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); padding: 5px 10px; font-weight: 500; font-size: 12px; }
.yours { min-height: 130vh; }
.yours-list { list-style: none; margin: 4px 0 14px; padding: 0; display: grid; gap: 8px; }
.yours-list li { display: grid; grid-template-columns: 96px 1fr; align-items: center; gap: 10px; font-size: 14px; }
.yours-list li span:first-child { font: 300 10px/1 var(--m); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); }
.yours-list i { display: inline-block; width: 12px; height: 12px; border-radius: 50%; margin-right: 8px; vertical-align: -1px; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .25); }
.yours-code { margin: 0; font: 300 12px/1.6 var(--m); color: var(--ink-2); display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.yours-code b { color: var(--ink); font-weight: 400; }
.yours-note { font-size: 13px; margin-top: 12px !important; }

.foot { position: relative; z-index: 2; display: flex; align-items: center; gap: 14px; padding: 40px 28px 140px; color: var(--ink-2); font-size: 12px; background: linear-gradient(to bottom, transparent, rgba(6, 12, 15, .7)); }
.foot-sym { height: 40px; color: var(--ink); }
.foot-word { height: 18px; color: var(--ink); }
.foot p { margin: 0 0 0 auto; max-width: 420px; text-align: right; }

/* dock */
.dock { position: fixed; z-index: 12; left: 50%; bottom: 22px; transform: translateX(-50%); display: grid; justify-items: center; gap: 10px; width: max-content; max-width: calc(100vw - 24px); }
.tabs { display: flex; gap: 2px; padding: 5px; background: var(--glass-2); border: 1px solid var(--line); border-radius: 4px; backdrop-filter: blur(20px) saturate(1.4); -webkit-backdrop-filter: blur(20px) saturate(1.4); }
.tabs button { cursor: pointer; background: none; border: 0; padding: 11px 18px; font: 400 10.5px/1 var(--m); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-2); border-radius: 2px; position: relative; }
.tabs button:hover { color: var(--ink); }
.tabs button[aria-selected="true"] { color: #0d171c; background: var(--ink); }
.panel { width: min(560px, calc(100vw - 24px)); padding: 18px 20px 20px; background: var(--glass-2); border: 1px solid var(--line); border-radius: 4px; backdrop-filter: blur(22px) saturate(1.4); -webkit-backdrop-filter: blur(22px) saturate(1.4); animation: rise .35s cubic-bezier(.2, .8, .2, 1); }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }
.pane { display: none; }
.pane.on { display: block; }
.pane-h { margin: 0 0 12px; font: 400 10px/1 var(--m); letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); display: flex; justify-content: space-between; }
.pane-h span { color: var(--ink); letter-spacing: .04em; text-transform: none; font-family: var(--f); font-size: 13px; }
.pane-hint { margin: 12px 0 0; font-size: 12px; color: var(--ink-3); }
.cams { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.cams button { cursor: pointer; display: grid; gap: 6px; justify-items: start; text-align: left; padding: 10px; background: rgba(255, 255, 255, .04); border: 1px solid var(--line); border-radius: 3px; font-size: 13px; }
.cams button svg { width: 100%; height: 30px; color: var(--ink-2); }
.cams button[aria-pressed="true"] { border-color: var(--ink); background: rgba(255, 255, 255, .1); }
.cams button[aria-pressed="true"] svg { color: var(--brass); }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 3px; overflow: hidden; }
.seg button { cursor: pointer; background: none; border: 0; padding: 11px; font-size: 14px; color: var(--ink-2); }
.seg button + button { border-left: 1px solid var(--line); }
.seg button[aria-checked="true"] { background: var(--ink); color: #0d171c; font-weight: 600; }
.time { margin-top: 16px; display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center; font: 300 11px/1 var(--m); color: var(--ink-2); }
.time output { color: var(--ink); min-width: 42px; text-align: right; }
input[type=range] { -webkit-appearance: none; appearance: none; background: none; height: 22px; width: 100%; }
input[type=range]::-webkit-slider-runnable-track { height: 1px; background: var(--ink-3); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; margin-top: -7px; border-radius: 50%; background: var(--ink); box-shadow: 0 0 0 4px rgba(238, 240, 234, .14); }
input[type=range]::-moz-range-track { height: 1px; background: var(--ink-3); }
input[type=range]::-moz-range-thumb { width: 14px; height: 14px; border: 0; border-radius: 50%; background: var(--ink); }
.arc { display: block; width: 100%; height: 34px; margin-top: 6px; color: var(--brass); }
.toggles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.toggles button { cursor: pointer; text-align: left; display: grid; gap: 4px; padding: 12px; background: rgba(255, 255, 255, .04); border: 1px solid var(--line); border-radius: 3px; }
.toggles b { font-weight: 500; font-size: 14px; }
.toggles span { font-size: 11.5px; color: var(--ink-3); }
.toggles button[aria-pressed="true"] { border-color: var(--brass); background: rgba(211, 180, 124, .14); }
.toggles button[aria-pressed="true"] b::after { content: ' · open'; color: var(--brass); font-weight: 400; }
.sw-row + .sw-row { margin-top: 14px; }
.sw-row .pane-h { margin-bottom: 9px; }
.sw { display: flex; gap: 8px; flex-wrap: wrap; }
.sw button { cursor: pointer; width: 34px; height: 34px; border-radius: 50%; border: 0; padding: 0; position: relative; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .22), inset 0 -8px 12px rgba(0, 0, 0, .25), inset 0 6px 10px rgba(255, 255, 255, .18); }
.sw button[aria-pressed="true"]::after { content: ''; position: absolute; inset: -5px; border-radius: 50%; border: 1.5px solid var(--ink); }
.specs { margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
.specs div { display: flex; justify-content: space-between; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
.specs dt { color: var(--ink-2); }
.specs dd { margin: 0; font-weight: 500; text-align: right; }
.fps { position: fixed; right: 10px; bottom: 10px; z-index: 40; font: 11px var(--m); color: var(--ink-2); }

/* modes */
html[data-mode="poster"] .bar, html[data-mode="poster"] .dock, html[data-mode="poster"] main, html[data-mode="poster"] .foot,
html[data-mode="demo"] .dock, html[data-mode="demo"] .bar-sea, html[data-mode="demo"] .bar-cta, html[data-mode="demo"] .bar-model { display: none !important; }
html[data-mode="poster"] .veil, html[data-mode="demo"] .veil { display: none; }
html[data-mode="demo"] body, html[data-mode="poster"] body { overflow: hidden; }
html[data-mode="demo"] main .ch, html[data-mode="demo"] .foot { display: none; }
html[data-mode="demo"] .hero { padding-bottom: 36px; }
html[data-mode="demo"] .hero-lede { display: none; }

@media (max-width: 760px) {
  body { font-size: 14px; }
  .bar { grid-template-columns: auto 1fr auto; gap: 12px; padding: 14px 16px; }
  .bar-model, .bar-sea { display: none; }
  .bar-cta { justify-self: end; grid-column: 3; padding: 8px 12px; font-size: 12px; }
  .mark-sym { height: 26px; } .mark-word { height: 12px; }
  .hero { padding: 0 16px 130px; align-items: flex-end; }
  .hero h1 { font-size: 58px; }
  .hero-lede { font-size: 14px; }
  /* portrait: the boat sits on the upper 40 % line, so a chapter card rides the bottom, above the dock */
  .ch { padding: 0 16px; min-height: 140vh; align-items: flex-end; }
  .ch-card { top: auto; bottom: 84px; margin: 0 0 22vh; padding: 18px; }
  .ch h2 { font-size: 23px; }
  .dock { bottom: 12px; }
  .tabs button { padding: 10px 8px; font-size: 9px; letter-spacing: .08em; }
  .panel { padding: 14px; }
  .cams, .toggles { grid-template-columns: repeat(2, 1fr); }
  .specs { grid-template-columns: 1fr; }
  .foot { flex-wrap: wrap; padding-bottom: 120px; }
  .foot p { margin: 8px 0 0; text-align: left; }
}
@media (prefers-reduced-motion: reduce) { .panel { animation: none; } }