/* Onyx site. Brand canon from frontend/src/styles/tokens.css:
   purple = what the operator does, mint = what the rail proves. */
:root {
  color-scheme: dark;
  --bg: #060409;
  --bg-elev: #0c0915;
  --bg-card: #0f0c18;
  --line: #221b31;
  --line-soft: #17121f;
  --ink: #f2eef9;
  --ink-2: #bdb4cc;
  --ink-3: #8a809b;
  --accent: #9f6bff;
  --accent-tint: #c3a3ff;
  --accent-weak: rgba(159, 107, 255, 0.14);
  --witness: #34d39a;
  --witness-weak: rgba(52, 211, 154, 0.13);
  --rival: #e9a25f;
  --ring: #7fe6e3;
  --font-display: "Bricolage Grotesque", "Hanken Grotesk", system-ui, -apple-system, sans-serif;
  --font-ui: "Hanken Grotesk", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
  --wrap: 1120px;
  --gutter: clamp(16px, 4vw, 40px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.6 var(--font-ui);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; }
a { color: var(--accent-tint); text-decoration: none; }
a:hover { text-decoration: underline; }
::selection { background: var(--accent); color: #fff; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: var(--gutter); }
.mono { font-family: var(--font-mono); }
.num { font-variant-numeric: tabular-nums; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 700; letter-spacing: -0.02em; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(44px, 7.4vw, 92px); line-height: 0.98; letter-spacing: -0.035em; }
h2 { font-size: clamp(30px, 4.2vw, 50px); line-height: 1.06; }
h3 { font-size: 21px; line-height: 1.25; letter-spacing: -0.01em; }
p { margin: 0; }
.lede { font-size: clamp(18px, 2vw, 21px); color: var(--ink-2); max-width: 62ch; }
.eyebrow {
  font: 600 12px/1 var(--font-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.eyebrow.proof { color: var(--witness); }

/* nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(6, 4, 9, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.nav .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font: 700 20px/1 var(--font-display); letter-spacing: -0.02em; }
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.nav-links { display: flex; gap: 24px; margin-left: auto; font-size: 15px; }
.nav-links a { color: var(--ink-2); }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
@media (max-width: 720px) { .nav-links .hide-sm { display: none; } .nav .wrap { gap: 16px; } .nav-links { gap: 16px; } }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px; border-radius: 10px;
  font: 600 16px/1 var(--font-ui);
  border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 30px -10px rgba(159, 107, 255, .7); }
.btn-primary:hover { background: #ad82ff; }
.btn-ghost { color: var(--ink); border-color: var(--line); background: transparent; }
.btn-ghost:hover { border-color: var(--ink-3); }
.btn-sm { padding: 9px 14px; font-size: 14px; }

/* hero */
.hero { position: relative; padding-block: clamp(56px, 9vw, 112px) clamp(48px, 7vw, 88px); overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% -10% auto auto; width: 70vw; height: 70vw; max-width: 900px; max-height: 900px;
  background: radial-gradient(closest-side, rgba(159, 107, 255, .20), transparent 70%);
  pointer-events: none;
}
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
@media (max-width: 920px) { .hero .wrap { grid-template-columns: 1fr; } }
.hero h1 em { font-style: normal; color: var(--accent-tint); }
.hero .lede { margin-top: 26px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-note { margin-top: 18px; font-size: 14px; color: var(--ink-3); }

/* scoreboard */
.board {
  background: linear-gradient(180deg, var(--bg-card), var(--bg-elev));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .9), inset 0 1px 0 rgba(255, 255, 255, .04);
}
.board-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.score { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 14px; margin-top: 22px; }
.score .side { display: grid; gap: 4px; }
.score .side:last-child { text-align: right; }
.score .who { font-size: 14px; color: var(--ink-2); }
.score .pts { font: 700 clamp(60px, 9vw, 96px)/0.9 var(--font-display); letter-spacing: -0.04em; font-variant-numeric: tabular-nums; }
.score .onyx .pts { color: var(--ink); }
.score .rival .pts { color: var(--ink-3); }
.score .dash { font: 300 40px/1 var(--font-display); color: var(--ink-3); }
.games { display: grid; grid-template-columns: repeat(10, 1fr); gap: 5px; margin-top: 24px; }
.games span {
  aspect-ratio: 1; border-radius: 4px; background: var(--witness-weak); border: 1px solid rgba(52, 211, 154, .35);
  display: grid; place-items: center; font: 600 10px/1 var(--font-mono); color: var(--witness);
}
.board-foot { margin-top: 18px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; color: var(--ink-3); }
.pill { display: inline-flex; align-items: center; gap: 7px; font: 600 11px/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--witness); background: var(--witness-weak); padding: 6px 9px; border-radius: 999px; }
.pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--witness); box-shadow: 0 0 10px var(--witness); }
.pill.live { color: var(--accent-tint); background: var(--accent-weak); }
.pill.live::before { background: var(--accent-tint); box-shadow: 0 0 10px var(--accent); animation: blink 1.6s ease-in-out infinite; }
@keyframes blink { 50% { opacity: .3; } }

/* stats strip */
.stats { border-block: 1px solid var(--line-soft); background: var(--bg-elev); }
.stats .wrap { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 30px 24px 30px 0; display: grid; gap: 8px; align-content: start; }
.stat + .stat { padding-left: 24px; border-left: 1px solid var(--line-soft); }
.stat b { font: 700 clamp(32px, 4vw, 46px)/1 var(--font-display); letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.stat span { font-size: 15px; color: var(--ink-2); max-width: 26ch; }
@media (max-width: 860px) {
  .stats .wrap { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line-soft); }
}
@media (max-width: 460px) {
  .stats .wrap { grid-template-columns: 1fr; }
  .stat, .stat + .stat { padding-left: 0; border-left: 0; }
  .stat + .stat { border-top: 1px solid var(--line-soft); }
}

/* sections */
section { padding-block: clamp(64px, 8vw, 104px); }
.sec-head { display: grid; gap: 18px; max-width: 760px; margin-bottom: clamp(36px, 5vw, 56px); }

/* proof */
.setup { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: 14px; overflow: hidden; margin-bottom: 28px; }
.setup div { background: var(--bg); padding: 20px 22px; display: grid; gap: 6px; }
.setup dt { font: 600 11px/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.setup dd { margin: 0; font-size: 15px; color: var(--ink); }
@media (max-width: 760px) { .setup { grid-template-columns: 1fr; } }

.charts { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 900px) { .charts { grid-template-columns: 1fr; } }
.chart { background: var(--bg-elev); border: 1px solid var(--line); border-radius: 16px; padding: 24px; display: grid; gap: 10px; min-width: 0; }
.chart p { font-size: 15px; color: var(--ink-2); }
.chart svg { width: 100%; height: auto; display: block; margin-top: 6px; overflow: visible; }
.legend { display: flex; gap: 18px; flex-wrap: wrap; font-size: 13px; color: var(--ink-2); }
.legend i { display: inline-block; width: 18px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 7px; }
.chart text { fill: var(--ink-3); font: 11px var(--font-mono); }
.chart .lbl-on { fill: var(--accent-tint); }
.chart .lbl-cc { fill: var(--rival); }

/* why */
.why { background: linear-gradient(180deg, var(--bg), #0a0711 50%, var(--bg)); }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 860px) { .why-grid { grid-template-columns: 1fr; } }
.mind { border: 1px solid var(--line); border-radius: 16px; padding: 26px; background: var(--bg-card); display: grid; gap: 16px; align-content: start; }
.mind.onyx { border-color: rgba(159, 107, 255, .45); box-shadow: 0 0 0 1px rgba(159, 107, 255, .12), 0 30px 60px -30px rgba(159, 107, 255, .35); }
.mind ol { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; counter-reset: step; }
.mind li { counter-increment: step; display: grid; grid-template-columns: 26px 1fr; gap: 10px; font-size: 15.5px; color: var(--ink-2); }
.mind li b { color: var(--ink); font-weight: 600; }
.mind li::before { content: counter(step); font: 600 12px/26px var(--font-mono); text-align: center; border-radius: 7px; background: var(--line-soft); color: var(--ink-3); height: 26px; }
.mind.onyx li::before { background: var(--accent-weak); color: var(--accent-tint); }
.stack { display: flex; align-items: flex-end; gap: 4px; height: 90px; padding-top: 6px; border-bottom: 1px solid var(--line); }
.stack span { flex: 1; border-radius: 3px 3px 0 0; }
.mind.cc .stack span { background: linear-gradient(180deg, var(--rival), rgba(233, 162, 95, .25)); }
.mind.onyx .stack span { background: linear-gradient(180deg, var(--accent), rgba(159, 107, 255, .25)); }
.stack-cap { font: 12px var(--font-mono); color: var(--ink-3); display: flex; justify-content: space-between; }

/* timeline */
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 8px; position: relative; }
.timeline::before { content: ""; position: absolute; left: 0; right: 0; top: 11px; height: 1px; background: var(--line); }
.tl { position: relative; padding: 34px 20px 0 0; display: grid; gap: 8px; align-content: start; }
.tl::before { content: ""; position: absolute; top: 5px; left: 0; width: 13px; height: 13px; border-radius: 50%; background: var(--bg); border: 2px solid var(--ink-3); }
.tl.win::before { border-color: var(--witness); background: var(--witness); box-shadow: 0 0 14px rgba(52, 211, 154, .6); }
.tl.now::before { border-color: var(--accent-tint); animation: blink 1.6s ease-in-out infinite; }
.tl .date { font: 600 12px/1 var(--font-mono); color: var(--ink-3); letter-spacing: .06em; }
.tl b { font: 700 26px/1.1 var(--font-display); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.tl p { font-size: 14.5px; color: var(--ink-2); }
@media (max-width: 860px) {
  .timeline { grid-template-columns: 1fr; gap: 26px; }
  .timeline::before { left: 6px; right: auto; top: 0; bottom: 0; width: 1px; height: auto; }
  .tl { padding: 0 0 0 32px; }
  .tl::before { top: 4px; }
}

/* features */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line-soft); border: 1px solid var(--line-soft); border-radius: 16px; overflow: hidden; }
@media (max-width: 900px) { .features { grid-template-columns: 1fr 1fr; } }
@media (max-width: 580px) { .features { grid-template-columns: 1fr; } }
.feat { background: var(--bg); padding: 28px 26px; display: grid; gap: 10px; align-content: start; }
.feat p { font-size: 15.5px; color: var(--ink-2); }
.feat .k { font: 600 11px/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent-tint); }
.feat .k.proof { color: var(--witness); }
.agents { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.agents span { font: 500 13px/1 var(--font-mono); padding: 7px 10px; border: 1px solid var(--line); border-radius: 8px; color: var(--ink); }

/* receipt */
.receipt { font: 12.5px/1.75 var(--font-mono); color: var(--ink-2); background: #050307; border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; overflow-x: auto; white-space: pre; }
.receipt .ok { color: var(--witness); }
.receipt .dim { color: var(--ink-3); }
.receipt .ac { color: var(--accent-tint); }

/* ledger */
.ledger-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 28px; align-items: start; }
@media (max-width: 900px) { .ledger-grid { grid-template-columns: 1fr; } }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 14px; }
table { width: 100%; border-collapse: collapse; font-size: 15px; font-variant-numeric: tabular-nums; min-width: 480px; }
th, td { text-align: left; padding: 13px 18px; border-bottom: 1px solid var(--line-soft); }
th { font: 600 11px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); background: var(--bg-elev); }
tr:last-child td { border-bottom: 0; }
td.on { color: var(--ink); font-weight: 600; }
td.cc { color: var(--ink-2); }
td .up { color: var(--witness); font: 600 12px var(--font-mono); margin-left: 6px; }
td .dn { color: var(--rival); font: 600 12px var(--font-mono); margin-left: 6px; }
.note { display: grid; gap: 14px; font-size: 15.5px; color: var(--ink-2); }
.note h3 { color: var(--ink); }
.bars { display: grid; gap: 10px; margin-top: 6px; }
.bar { display: grid; grid-template-columns: 112px 1fr 64px; align-items: center; gap: 12px; font-size: 13px; color: var(--ink-3); }
.bar div { height: 10px; border-radius: 5px; background: var(--line-soft); overflow: hidden; }
.bar div i { display: block; height: 100%; border-radius: 5px; }
.bar b { font: 600 13px var(--font-mono); color: var(--ink); text-align: right; }

/* closer */
.closer { text-align: center; }
.closer .wrap { display: grid; justify-items: center; gap: 22px; }
.closer .lede { margin-inline: auto; }
.closer img { width: 120px; height: 120px; filter: drop-shadow(0 20px 50px rgba(127, 230, 227, .25)); }

footer { border-top: 1px solid var(--line-soft); padding-block: 32px; font-size: 14px; color: var(--ink-3); }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
footer a { color: var(--ink-2); }

/* download page */
.dl-hero { padding-block: clamp(56px, 8vw, 96px) 24px; }
.dl-hero .wrap { display: grid; gap: 20px; }
.os-group { display: grid; gap: 14px; }
.os-group + .os-group { margin-top: 40px; }
.dl-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.dl { border: 1px solid var(--line); background: var(--bg-card); border-radius: 14px; padding: 22px; display: grid; gap: 12px; align-content: start; }
.dl.recommended { border-color: rgba(159, 107, 255, .55); box-shadow: 0 0 0 1px rgba(159, 107, 255, .15); }
.dl-top { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.dl .ext { font: 500 13px var(--font-mono); color: var(--ink-3); }
.dl .req { font-size: 14px; color: var(--ink-2); }
.dl .sha { font: 11px/1.5 var(--font-mono); color: var(--ink-3); word-break: break-all; }
.dl .btn[aria-disabled="true"] { pointer-events: none; opacity: .55; }
.tag { font: 600 10.5px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--accent-tint); }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.steps div { display: grid; gap: 8px; }
.steps b { font: 600 12px var(--font-mono); color: var(--accent-tint); }
.steps p { color: var(--ink-2); font-size: 15.5px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* hero comparison card */
.vs { display: grid; gap: 0; margin-top: 18px; }
.vs-head, .vs-row { display: grid; grid-template-columns: 1fr 76px 96px; gap: 10px; align-items: baseline; }
.vs-head { font: 600 11px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; padding-bottom: 10px; border-bottom: 1px solid var(--line); }
.vs-head .on, .vs-head .cc, .vs-row b { text-align: right; }
.vs-head .on { color: var(--accent-tint); }
.vs-head .cc { color: var(--ink-3); }
.vs-row { padding: 12px 0; border-bottom: 1px solid var(--line-soft); font-size: 14.5px; color: var(--ink-2); }
.vs-row b { font: 700 22px/1 var(--font-display); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.vs-row b.on { color: var(--ink); }
.vs-row b.cc { color: var(--ink-3); }
@media (max-width: 420px) { .vs-head, .vs-row { grid-template-columns: 1fr 58px 72px; } .vs-row b { font-size: 19px; } }

/* capability state and evidence */
.feat .k .st { font-style: normal; margin-left: 8px; padding: 3px 6px; border-radius: 4px; border: 1px solid var(--line); color: var(--ink-3); letter-spacing: .08em; }
.feat .k .st.proven { border-color: rgba(52, 211, 154, .4); color: var(--witness); }
.feat .k .st.partial { border-color: rgba(233, 162, 95, .45); color: var(--rival); }
.feat .ev { font: 12.5px/1.5 var(--font-mono); color: var(--ink-3); border-top: 1px solid var(--line-soft); padding-top: 10px; margin-top: 4px; }

/* benchmark suite */
.suite { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 960px) { .suite { grid-template-columns: 1fr 1fr; } }
@media (max-width: 580px) { .suite { grid-template-columns: 1fr; } }
.suite-item { border: 1px solid var(--line); background: var(--bg-card); border-radius: 14px; padding: 22px; display: grid; gap: 10px; align-content: start; min-width: 0; }
.suite-item .pill { justify-self: start; }
.suite-item p { font-size: 15px; color: var(--ink-2); }

.timeline { grid-template-columns: repeat(5, 1fr); }
@media (max-width: 860px) { .timeline { grid-template-columns: 1fr; } }

/* hero series ladder */
.hl { color: var(--ink); font-weight: 600; }
.ladder { display: grid; gap: 7px; margin-top: 22px; }
.rung { display: grid; grid-template-columns: 52px 1fr 52px; align-items: center; gap: 10px; font: 12px var(--font-mono); color: var(--ink-3); }
.rung .rb { display: flex; height: 10px; border-radius: 3px; overflow: hidden; background: var(--line-soft); min-width: 6px; }
.rung .rs { text-align: right; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.rung i, .ladder-key i { display: block; }
.rung i.w, .ladder-key i.w { background: var(--accent); }
.rung i.d, .ladder-key i.d { background: var(--ink-3); }
.rung i.l, .ladder-key i.l { background: var(--rival); }
.ladder-key { display: inline-flex; align-items: center; gap: 6px; }
.ladder-key i { width: 9px; height: 9px; border-radius: 2px; margin-left: 6px; }
.suite { margin-top: 20px; }
.fine { margin-top: 18px; font-size: 13.5px; color: var(--ink-3); max-width: 80ch; }

/* product pillars */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .pillars { grid-template-columns: 1fr; } }
.pillar { border: 1px solid var(--line); background: var(--bg-card); border-radius: 16px; padding: 28px 26px; display: grid; gap: 14px; align-content: start; min-width: 0; }
.pillar .k { font: 600 11px/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--accent-tint); }
.pillar .k.proof { color: var(--witness); }
.pillar h3 { font-size: 22px; }
.pillar ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.pillar li { font-size: 15.5px; color: var(--ink-2); padding-left: 18px; position: relative; }
.pillar li::before { content: ""; position: absolute; left: 0; top: .62em; width: 7px; height: 7px; border-radius: 2px; background: var(--accent); }
.pillar:nth-child(n+2) li::before { background: var(--witness); }
.also { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line-soft); font-size: 14.5px; color: var(--ink-3); }
.also b { color: var(--ink); font-weight: 600; margin-right: 6px; }