:root {
  color-scheme: dark;
  --bg: #080b10;
  --surface: #101620;
  --surface-2: #151d29;
  --line: #293445;
  --text: #f4f7fb;
  --muted: #9aa9ba;
  --acid: #c7ff4a;
  --cyan: #66e3ff;
  --danger: #ff7a90;
  --focus: 3px solid var(--acid);
  --max: 1180px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: radial-gradient(circle at 70% 0, #122337 0, var(--bg) 36rem); line-height: 1.55; }
a { color: inherit; }
button, input, textarea { font: inherit; }

.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 20; padding: .7rem 1rem; background: var(--acid); color: #071007; }
.skip-link:focus { top: 1rem; }
.topbar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 2rem; padding: 1rem max(1.25rem, calc((100vw - var(--max)) / 2)); border-bottom: 1px solid #263140cc; background: #080b10e8; backdrop-filter: blur(14px); }
.brand { font-weight: 850; text-decoration: none; letter-spacing: -.03em; }
.brand span { color: var(--acid); }
.topbar nav { display: flex; gap: 1.25rem; margin-right: auto; }
.topbar nav a { color: var(--muted); text-decoration: none; font-size: .9rem; }
.topbar nav a:hover { color: var(--text); }
.health { display: flex; align-items: center; gap: .5rem; color: var(--muted); font-size: .82rem; }
.health i { width: .55rem; height: .55rem; border-radius: 50%; background: var(--acid); box-shadow: 0 0 1rem var(--acid); }

main, footer { max-width: var(--max); margin-inline: auto; padding-inline: 1.25rem; }
.hero { min-height: 24rem; display: grid; grid-template-columns: 1.5fr 1fr; align-items: center; gap: clamp(2rem, 8vw, 7rem); padding-block: 4rem 3rem; }
.eyebrow { color: var(--acid); font: 700 .73rem ui-monospace, monospace; letter-spacing: .14em; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 1.5rem; font-size: clamp(3rem, 6vw, 5.8rem); line-height: .96; letter-spacing: -.065em; }
h1 em { color: var(--acid); font-weight: 450; }
h2 { margin-bottom: 0; font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1; letter-spacing: -.045em; }
.lede { max-width: 48rem; color: #c2ccda; font-size: 1.16rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 2.8rem; padding: .65rem 1rem; border: 1px solid var(--line); border-radius: .35rem; background: var(--surface-2); color: var(--text); cursor: pointer; text-decoration: none; font-weight: 750; }
.button:hover:not(:disabled) { border-color: var(--cyan); transform: translateY(-1px); }
.button.primary { background: var(--acid); border-color: var(--acid); color: #091006; }
.button:disabled { opacity: .42; cursor: not-allowed; }
.principle { border: 1px solid var(--line); border-top: 3px solid var(--acid); padding: 1.5rem; background: linear-gradient(145deg, #151d29, #0c1119); box-shadow: 0 2rem 5rem #0008; }
.principle > span { color: var(--muted); font: 700 .72rem ui-monospace, monospace; }
.principle code { display: block; margin: 1.1rem 0; color: var(--cyan); font-size: 1rem; line-height: 1.8; overflow-wrap: anywhere; }
.principle p { margin-bottom: 0; color: var(--muted); }
.danger-proof strong { display: block; margin: .7rem 0 .2rem; color: var(--danger); font: 650 2rem ui-monospace, monospace; }
.compact-status { min-height: 1.5rem; margin: .5rem 0 0; font-size: .78rem; }
.hero-prompt { margin: 1rem 0 0; padding: .7rem .9rem; border-left: 2px solid var(--cyan); background: #0b1119; color: #dce7f4; font-size: .82rem; white-space: pre-wrap; }
.readiness { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.readiness-badge { padding: .35rem .6rem; border: 1px solid var(--line); border-radius: .25rem; font: 700 .66rem ui-monospace, monospace; }
.readiness-badge.pending { color: #ffe082; border-color: #685c25; background: #201d0c; }
.readiness-badge.complete { color: var(--acid); border-color: #4b6124; background: #18210d; }

.section { padding-block: 5rem; border-top: 1px solid var(--line); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 1rem; margin-bottom: 2.5rem; }
.pill { padding: .35rem .65rem; border: 1px solid #4b6124; border-radius: 999px; color: var(--acid); background: #18210d; font: 700 .7rem ui-monospace, monospace; white-space: nowrap; }
.pill.neutral { border-color: var(--line); color: var(--muted); background: var(--surface); }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); }
.metrics article { min-height: 9.5rem; padding: 1.3rem; border-right: 1px solid var(--line); background: var(--surface); }
.metrics article:last-child { border-right: 0; }
.metrics span, .metrics small { display: block; color: var(--muted); font-size: .78rem; }
.metrics strong { display: block; margin: .5rem 0; color: var(--acid); font: 500 2.5rem ui-monospace, monospace; }
.method { max-width: 62rem; margin: 1.4rem 0 0; color: var(--muted); font-size: .84rem; }

.demo-grid { display: grid; grid-template-columns: minmax(17rem, .72fr) minmax(0, 1.5fr); gap: 1rem; align-items: start; }
.judge-brief { grid-column: 1 / -1; display: grid; grid-template-columns: .75fr 1.45fr; gap: 1rem 1.5rem; border-top: 3px solid var(--acid); }
.judge-brief h3 { margin-bottom: .35rem; font-size: 1.6rem; }
.judge-brief p { margin-bottom: 0; }
.prompt-card { border-left: 2px solid var(--cyan); padding-left: 1rem; }
.prompt-card b { color: var(--cyan); font-size: .78rem; }
.prompt-card p { margin-top: .35rem; color: #dce7f4; white-space: pre-wrap; }
.prompt-copy { min-height: 2.1rem; margin: .5rem 0 .15rem; padding: .35rem .65rem; font-size: .72rem; }
.trust-legend { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: .5rem; }
.trust-legend span { padding: .3rem .5rem; border: 1px solid var(--line); color: var(--muted); font: 650 .64rem ui-monospace, monospace; }
.panel { min-width: 0; border: 1px solid var(--line); border-radius: .45rem; padding: 1.4rem; background: #101620e8; }
label { display: grid; gap: .35rem; margin-bottom: 1rem; color: var(--muted); font-size: .8rem; font-weight: 700; }
input, textarea { width: 100%; border: 1px solid #354256; border-radius: .3rem; padding: .65rem .75rem; background: #090e15; color: var(--text); }
textarea { resize: vertical; }
#auth-controls { margin-bottom: 1rem; color: var(--cyan); font: 700 .76rem ui-monospace, monospace; }
#auth-controls button { margin-left: .5rem; border: 0; background: transparent; color: var(--acid); cursor: pointer; text-decoration: underline; }
#token-details { margin-bottom: 1rem; color: var(--muted); font-size: .8rem; }
.result-panel { min-height: 30rem; }
.timeline { display: grid; grid-template-columns: repeat(6, 1fr); gap: .3rem; }
.timeline span { border-top: 2px solid var(--line); padding-top: .45rem; color: var(--muted); font: 700 .67rem ui-monospace, monospace; }
.timeline span.active { border-color: var(--acid); color: var(--text); }
.provider-status { border: 1px solid var(--line); padding: .65rem .8rem; color: var(--muted); font: 600 .72rem ui-monospace, monospace; margin-top: 1rem; }
.capability-inspector { margin-top: 1rem; border: 1px solid #3a4a5f; border-left: 3px solid var(--cyan); padding: 1rem; background: #0b1119; }
.capability-heading { display: flex; justify-content: space-between; align-items: start; gap: 1rem; }
.capability-heading h3 { margin: .2rem 0 0; font-size: 1rem; }
.capability-heading .eyebrow { margin: 0; font-size: .62rem; }
.capability-meta { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; margin: .9rem 0; }
.capability-meta div { border: 1px solid var(--line); padding: .55rem; }
.capability-meta dt { color: var(--muted); font-size: .65rem; text-transform: uppercase; }
.capability-meta dd { margin: .15rem 0 0; color: var(--cyan); font: 700 .76rem ui-monospace, monospace; overflow-wrap: anywhere; }
.capability-columns { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.capability-columns b { font-size: .72rem; }
.capability-columns ul { margin: .4rem 0 0; padding-left: 1.1rem; color: var(--muted); font: .7rem ui-monospace, monospace; }
.capability-columns li { margin-block: .25rem; overflow-wrap: anywhere; }
.webmcp-events { margin-top: .8rem; border-top: 1px solid var(--line); padding-top: .65rem; }
.webmcp-events summary { color: var(--cyan); cursor: pointer; font-size: .72rem; font-weight: 700; }
.webmcp-events ol { max-height: 8rem; overflow: auto; margin: .5rem 0 0; padding-left: 1.4rem; color: var(--muted); font: .68rem ui-monospace, monospace; }
.authority-boundary { margin-top: 1rem; padding: 1rem; border: 1px solid #604e25; border-left: 3px solid #ffe082; background: #16140c; }
.authority-boundary h3 { margin: .2rem 0 .35rem; font-size: 1rem; }
.authority-boundary p:last-child { margin-bottom: 0; color: #d8cfab; font-size: .82rem; }
.result { padding-block: 1.5rem; }
.result h3 { overflow-wrap: anywhere; font-size: 1.4rem; line-height: 1.25; }
.result dl { display: grid; grid-template-columns: 9rem 1fr; gap: .45rem 1rem; }
.result dt { color: var(--muted); font-size: .78rem; }
.result dd { min-width: 0; margin: 0; overflow-wrap: anywhere; }
.confidence { display: inline-block; margin-bottom: .75rem; color: var(--acid); font: 700 .72rem ui-monospace, monospace; }
.risk { color: var(--danger); }
.muted, .empty { color: var(--muted); }
.loading { animation: pulse 1.2s ease-in-out infinite; }
.loop-actions { display: flex; flex-wrap: wrap; gap: .55rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.protected-actions { border: 1px solid #604e25; padding: .8rem; background: #121109; }
.evidence-layers, .authority-chain, .recurrence-proof { margin-top: 1rem; border: 1px solid var(--line); padding: 1rem; background: #0b1119; }
.section-heading.compact { margin-bottom: .8rem; }
.evidence-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .55rem; }
.evidence-grid article { min-width: 0; border: 1px solid var(--line); padding: .75rem; }
.evidence-grid span, .evidence-grid small { display: block; color: var(--muted); font-size: .64rem; }
.evidence-grid strong { display: block; margin: .45rem 0; color: var(--cyan); overflow-wrap: anywhere; font-size: .88rem; }
.evidence-grid pre { max-height: 18rem; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--cyan); font-size: .66rem; }
.evidence-layers details, .authority-chain details { margin-top: .8rem; }
.evidence-layers summary, .authority-chain summary { color: var(--cyan); cursor: pointer; font-size: .75rem; font-weight: 700; }
.evidence-layers pre { max-height: 16rem; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; color: var(--muted); font-size: .68rem; }
.authority-chain h3 { margin: .15rem 0 .75rem; font-size: 1rem; }
.authority-chain > ol { display: grid; grid-template-columns: repeat(6, 1fr); gap: .3rem; list-style: none; padding: 0; }
.authority-chain > ol li { min-width: 0; border-top: 2px solid var(--line); padding-top: .4rem; color: var(--muted); font-size: .65rem; }
.authority-chain > ol li.complete { border-color: var(--acid); color: var(--text); }
.authority-chain > ol li.current { border-color: var(--cyan); color: var(--cyan); }
#authority-events { max-height: 12rem; overflow: auto; color: var(--muted); font: .68rem ui-monospace, monospace; }
.recurrence-proof { border-left: 3px solid var(--acid); }
.recurrence-proof dl { display: grid; grid-template-columns: 10rem 1fr; gap: .5rem; }
.recurrence-proof dt { color: var(--muted); }
.recurrence-proof dd { margin: 0; }
.candidates { border: 1px solid var(--line); padding: .75rem; margin-top: 1rem; }
.candidates summary, .agent-trace summary { cursor: pointer; color: var(--cyan); font-weight: 700; }
.candidates ol { list-style: none; margin: .6rem 0 0; padding: 0; }
.candidate { padding: .65rem; border-top: 1px solid var(--line); }
.candidate div { display: flex; justify-content: space-between; gap: 1rem; }
.candidate div span, .candidate small, .agent-trace li small { display: block; color: var(--muted); }
.candidate.selected { border-left: 3px solid var(--acid); }
.candidate.rejected { border-left: 3px solid var(--danger); }
.trace-risk { color: var(--cyan); }
.agent-trace li { padding: .4rem 0; }

.architecture { display: flex; align-items: center; justify-content: center; gap: .8rem; padding: 2rem; border: 1px solid var(--line); background: var(--surface); overflow-x: auto; }
.architecture > i { color: var(--muted); font: .7rem ui-monospace, monospace; }
.node { min-width: 9rem; padding: 1rem; border: 1px solid #415068; background: var(--surface-2); }
.node b, .node span { display: block; }
.node span { color: var(--muted); font-size: .72rem; }
.node.core { border-color: var(--acid); }
.node.database { border-color: var(--cyan); }
.branch { display: grid; gap: .5rem; }
.safeguards { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.safeguards span { padding: .35rem .6rem; border: 1px solid var(--line); color: var(--muted); font-size: .72rem; }
footer { display: flex; justify-content: space-between; gap: 1rem; padding-block: 2rem; border-top: 1px solid var(--line); color: var(--muted); font-size: .75rem; }

.button:focus-visible, input:focus-visible, textarea:focus-visible, summary:focus-visible, a:focus-visible { outline: var(--focus); outline-offset: 2px; }
@keyframes pulse { 50% { opacity: .45; } }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .loading { animation: none; } }
@media (max-width: 820px) {
  .topbar nav { display: none; }
  .hero, .demo-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-block: 5rem 3rem; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .metrics article:nth-child(2) { border-right: 0; }
  .metrics article:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .architecture { justify-content: start; }
  .judge-brief, .evidence-grid { grid-template-columns: 1fr; }
  .prompt-card { border-left: 0; border-top: 2px solid var(--cyan); padding: .8rem 0 0; }
  .authority-chain > ol { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 540px) {
  .health { display: none; }
  h1 { font-size: 3rem; }
  .section-heading { align-items: start; flex-direction: column; }
  .metrics { grid-template-columns: 1fr; }
  .metrics article { border-right: 0; border-bottom: 1px solid var(--line); }
  .timeline { grid-template-columns: repeat(3, 1fr); }
  .result dl { grid-template-columns: 1fr; }
  .capability-heading, .capability-columns { display: grid; grid-template-columns: minmax(0, 1fr); }
  .capability-heading > * { min-width: 0; }
  .capability-heading .pill { max-width: 100%; white-space: normal; overflow-wrap: anywhere; }
  .authority-chain > ol { grid-template-columns: repeat(2, 1fr); }
  .recurrence-proof dl { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}