/* octo preview — mobile first, dark deep-sea theme */
:root {
  --bg: #04080b; --bg-2: #071017; --panel: #0b151c; --line: #1c2c36; --line-2: #2a4050;
  --text: #d7e6ea; --muted: #7e959e; --faint: #4d626c; --accent: #5cf2d6; --accent-ink: #032a24; --coral: #ff7a6b;
  --art-body: #cfeaf0; --art-eye: #ffffff; --art-ink: #a08cff; --art-bubble: #4d9fbe; --art-accent: #5cf2d6;
  --mono: 'JetBrains Mono', ui-monospace, Menlo, Consolas, monospace;
  --display: 'Space Grotesk', system-ui, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.6 var(--mono); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.bar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 14px; height: 64px; padding: 0 16px; background: rgba(4, 8, 11, .86); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 8px; font: 700 28px/1 var(--display); letter-spacing: -1.5px; }
.brand svg { width: 26px; height: 26px; fill: var(--accent); }
.brand svg circle { fill: var(--bg); }
.badge { font-size: 10px; letter-spacing: .12em; color: var(--accent-ink); background: var(--accent); padding: 3px 7px; }
.bar nav { display: none; gap: 22px; margin-left: auto; font-size: 11px; letter-spacing: .06em; color: var(--muted); }
.bar nav a:hover { color: var(--text); }
.bar .btn-line { margin-left: auto; }

.btn, .btn-line { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 18px; font: 700 12px var(--mono); letter-spacing: .06em; white-space: nowrap; }
.btn { background: var(--accent); color: var(--accent-ink); }
.btn:hover { filter: brightness(1.1); }
.btn-line { border: 1px solid var(--line-2); color: var(--text); }
.btn-line:hover { border-color: var(--accent); color: var(--accent); }
.btn-line.small { padding: 9px 11px; font-size: 10px; }

main { max-width: 1240px; margin: 0 auto; padding: 0 16px; }

.hero { display: grid; gap: 22px; padding: 28px 0 40px; }
.kicker, .head > span { font-size: 11px; letter-spacing: .1em; color: var(--faint); }
h1 { margin: 12px 0 16px; font: 700 clamp(44px, 11vw, 92px)/.98 var(--display); letter-spacing: -2.5px; }
h1 span, h2 span { color: var(--accent); }
.hero-copy p { margin: 0 0 22px; color: var(--muted); max-width: 520px; }
.cta { display: flex; flex-wrap: wrap; gap: 10px; }
.cta.center { justify-content: center; }
.soon { display: inline-flex; align-items: center; gap: 10px; margin-top: 22px; font-size: 11px; letter-spacing: .12em; color: var(--accent); }
.soon i { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); animation: pulse 1.6s ease-in-out infinite; }
.soon.center { display: flex; justify-content: center; }

.tank { position: relative; height: 420px; border: 1px solid var(--line-2); background: radial-gradient(ellipse at 50% 40%, #0c1c24 0, #03070a 72%); overflow: hidden; }
.tank::after { content: ''; position: absolute; inset: 0; pointer-events: none; background: repeating-linear-gradient(0deg, rgba(255,255,255,.018) 0 1px, transparent 1px 3px); }
#specimen { position: absolute; inset: 0; width: 100%; height: 100%; cursor: grab; }
#specimen.grabbing { cursor: grabbing; }
.corner { position: absolute; font-size: 15px; color: #3f5b66; pointer-events: none; }
.tl { top: 10px; left: 12px; } .tr { top: 10px; right: 12px; } .bl { bottom: 10px; left: 12px; } .br { bottom: 10px; right: 12px; }
.tank-label, .tank-hint { position: absolute; left: 30px; font-size: 9px; letter-spacing: .12em; color: #6f8d98; pointer-events: none; }
.tank-label { top: 14px; } .tank-hint { bottom: 14px; }
.tank-readout { position: absolute; right: 26px; top: 34px; font-size: 9px; line-height: 1.8; color: #5f7d88; white-space: pre; text-align: right; pointer-events: none; }

.section { padding: 48px 0; border-top: 1px solid var(--line); }
.head { margin-bottom: 26px; }
h2 { margin: 10px 0 0; font: 700 clamp(32px, 7vw, 54px)/1.04 var(--display); letter-spacing: -1.5px; }
.lede { color: var(--muted); max-width: 620px; margin: 0 0 22px; }

.cards { display: grid; gap: 10px; }
.cards article { border: 1px solid var(--line-2); background: var(--panel); padding: 20px; }
.cards b { font-size: 12px; letter-spacing: .1em; color: var(--accent); }
.cards p { margin: 12px 0 10px; font-size: 15px; }
.cards small { color: var(--muted); font-size: 12px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.steps li { display: grid; grid-template-columns: 34px 1fr; gap: 4px 12px; border: 1px solid var(--line); background: var(--panel); padding: 18px; }
.steps time { color: var(--faint); font-size: 12px; grid-row: span 2; padding-top: 2px; }
.steps b { font-size: 16px; letter-spacing: .08em; color: var(--accent); }
.steps p { margin: 0; color: var(--muted); font-size: 14px; }

.marquee { display: grid; gap: 8px; overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.track { display: flex; gap: 8px; width: max-content; animation: drift 80s linear infinite; }
.track.reverse { animation-direction: reverse; animation-duration: 95s; }
.track canvas { width: 92px; height: 92px; image-rendering: pixelated; border: 1px solid var(--line-2); background: #05090c; flex: none; }

.token { display: grid; gap: 16px; }
.token ul { list-style: none; margin: 0; padding: 0; }
.token li { display: grid; grid-template-columns: 34px 1fr; gap: 12px; padding: 14px 0; border-top: 1px solid var(--line); font: 500 18px/1.4 var(--display); }
.token time { font: 400 12px var(--mono); color: var(--faint); padding-top: 4px; }
.notice { border: 1px solid var(--coral); background: rgba(255, 122, 107, .06); padding: 18px; align-self: start; }
.notice b { color: var(--coral); font-size: 13px; letter-spacing: .08em; }
.notice p { margin: 8px 0 0; color: var(--text); font-size: 14px; }

.video { border: 1px solid var(--line-2); background: #000; }
.video video { display: block; width: 100%; aspect-ratio: 16 / 9; background: #000; }

.final { padding: 64px 0 56px; border-top: 1px solid var(--line); text-align: center; }
.final h2 { font-size: clamp(34px, 8vw, 64px); }
.final p { color: var(--muted); max-width: 520px; margin: 14px auto 24px; }

.foot { display: flex; justify-content: space-between; gap: 12px; padding: 22px 16px; border-top: 1px solid var(--line); font-size: 10px; letter-spacing: .1em; color: var(--faint); text-transform: uppercase; }

@keyframes drift { to { transform: translateX(-50%); } }
@keyframes pulse { 50% { opacity: .35; } }

@media (min-width: 760px) {
  .bar { padding: 0 3.5%; height: 72px; }
  .bar nav { display: flex; }
  .bar .btn-line { margin-left: 0; }
  main { padding: 0 3.5%; }
  .hero { grid-template-columns: 1fr 1.1fr; align-items: center; gap: 40px; padding: 56px 0 70px; min-height: calc(100vh - 72px); }
  .tank { height: min(560px, 70vh); }
  .section { padding: 72px 0; }
  .head { display: flex; align-items: end; justify-content: space-between; gap: 30px; }
  .head > span { order: 2; }
  .cards { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: repeat(4, 1fr); }
  .steps li { grid-template-columns: 1fr; align-content: start; min-height: 190px; }
  .steps time { grid-row: auto; }
  .token { grid-template-columns: 1.3fr 1fr; gap: 40px; }
  .track canvas { width: 120px; height: 120px; }
  .foot { padding: 26px 3.5%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .track, .soon i { animation: none; }
}