:root {
  --bg: #f5f3ee;
  --bg-alt: #efece5;
  --card: #ffffff;
  --line: #e2ddd2;
  --ink: #1c1a18;
  --muted: #5f5b55;
  --navy: #1e3a6b;
  --navy-soft: #e8edf6;
  --dark: #242128;
  --lilac: #cdbfe9;
  --ok: #2f6b4f;
  --radius: 22px;
  --serif: "EB Garamond", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
code { font-variant-ligatures: none; font: 0.86em var(--mono); background: var(--navy-soft); padding: 0.1em 0.35em; border-radius: 6px; }
.wrap { width: min(1120px, 100% - 40px); margin-inline: auto; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; z-index: 10; background: var(--card); padding: 8px 12px; border-radius: 8px; }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 5;
  background: rgba(245, 243, 238, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 76px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark { width: 30px; height: 30px; color: var(--muted); }
.brand-mark-hit { fill: var(--navy); }
.brand-name { font: 500 1.6rem/1 var(--serif); letter-spacing: -0.01em; }
.brand-name em { color: var(--navy); }
.nav { display: flex; gap: 28px; font: 500 0.82rem var(--mono); letter-spacing: 0.06em; text-transform: uppercase; }
.nav a { text-decoration: none; color: var(--muted); }
.nav a:hover { color: var(--ink); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 28px; border-radius: 999px; border: 1px solid transparent;
  font: 500 1rem var(--sans); text-decoration: none; transition: transform .15s, background .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-sm { padding: 10px 20px; font-size: 0.95rem; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-ghost { border-color: #cfc8ba; color: var(--ink); }
.btn-light { background: #f5f3ee; color: var(--ink); }
.btn-outline-light { border-color: rgba(255,255,255,.35); color: #fff; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.actions.center { justify-content: center; }

/* Type */
.eyebrow {
  display: flex; align-items: center; gap: 14px;
  font: 400 0.92rem var(--mono); letter-spacing: 0.05em; color: var(--navy); margin: 0 0 22px;
}
.eyebrow::after { content: ""; width: 64px; height: 1px; background: currentColor; opacity: .55; }
.eyebrow-light { color: #b9b4c2; justify-content: center; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.015em; margin: 0; }
h1 { font-size: clamp(2.6rem, 5.4vw, 4.4rem); line-height: 1.04; }
h2 { font-size: clamp(2.2rem, 4.2vw, 3.3rem); line-height: 1.08; }
h3 { font-size: 1.75rem; line-height: 1.15; margin-bottom: 10px; }
.accent { color: var(--navy); }
.accent-light { color: var(--lilac); }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 560px; margin: 26px 0 0; }
.section-lead { color: var(--muted); max-width: 720px; margin: 22px 0 0; font-size: 1.08rem; }

/* Hero */
.hero {
  background:
    radial-gradient(900px 500px at 85% 10%, rgba(30, 58, 107, 0.07), transparent 60%),
    radial-gradient(700px 500px at 0% 100%, rgba(214, 170, 140, 0.12), transparent 60%);
  padding: 96px 0 72px;
}
.hero-inner { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 56px; align-items: center; }
.hero-art { margin: 0; text-align: center; }
.hero-art svg { width: 100%; max-width: 420px; height: auto; }
.hero-art figcaption { font: 400 0.9rem var(--mono); color: var(--navy); letter-spacing: 0.04em; margin-top: 14px; }
.art-paper { fill: #fbfaf7; stroke: #b9b2a4; stroke-width: 1.4; }
.art-line { stroke: #d6d0c4; stroke-width: 1.2; }
.art-dot { fill: #d6d0c4; }
.art-code path { stroke: #cfc8ba; stroke-width: 7; stroke-linecap: round; }
.art-hit { fill: var(--navy-soft); stroke: var(--navy); stroke-width: 1.4; stroke-dasharray: 5 4; }
.art-hit-text { font: 500 11.5px var(--mono); fill: var(--navy); font-variant-ligatures: none; }
.art-seal-ring { fill: #fff; stroke: var(--navy); stroke-width: 1.4; }
.art-seal-inner { fill: none; stroke: var(--navy); stroke-width: 1; stroke-dasharray: 2 4; }
.art-seal-check { fill: none; stroke: var(--navy); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }

/* Sections and cards */
.section { padding: 104px 0; }
section[id] { scroll-margin-top: 76px; }
.section-alt { background: var(--bg-alt); }
.grid { display: grid; gap: 22px; margin-top: 48px; padding: 0; }
.grid.two { grid-template-columns: repeat(2, 1fr); }
.grid.steps { grid-template-columns: repeat(5, 1fr); list-style: none; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.card p { color: var(--muted); margin: 0; }
/* Show "<!-- -->" literally: Inter would draw "->" as an arrow. */
.card, .section-lead { font-feature-settings: "calt" 0; }
.card-tag { font: 400 0.88rem var(--mono); color: var(--navy) !important; margin-bottom: 14px !important; }
.steps .card h3 { font-size: 1.5rem; }
.steps .card p:last-child { font-size: 0.95rem; }
.note { margin-top: 30px; color: var(--muted); font-size: 0.95rem; overflow-wrap: anywhere; }

.ticks, .crosses { list-style: none; margin: 8px 0 18px; padding: 0; color: var(--muted); }
.ticks li, .crosses li { position: relative; padding-left: 30px; margin: 12px 0; }
.ticks li::before, .crosses li::before { position: absolute; left: 0; font: 500 0.95rem var(--mono); }
.ticks li::before { content: "✓"; color: var(--ok); }
.crosses li::before { content: "–"; color: #9a6b3a; }

/* Evidence cards */
.ev-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.ev-id { font: 500 0.9rem var(--mono); color: var(--navy); }
.badge { font: 500 0.75rem var(--mono); letter-spacing: 0.04em; padding: 5px 10px; border-radius: 999px; white-space: nowrap; }
.badge-hit { background: #f6e9e4; color: #8a3b24; }
.badge-clear { background: #e5efe8; color: var(--ok); }
.ev-desc { margin: 6px 0 18px !important; }
.ev-finding { border-left: 2px solid var(--navy); padding: 4px 0 4px 14px; margin: 10px 0; }
.ev-finding .where { font: 400 0.82rem var(--mono); color: var(--navy); }
.ev-finding p { font-size: 0.95rem; }
.ev-facts { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 20px 0 0; padding-top: 18px; border-top: 1px solid var(--line); font-size: 0.85rem; }
.ev-facts dt { font-family: var(--mono); color: var(--muted); }
.ev-facts dd { margin: 0; font-family: var(--mono); overflow-wrap: anywhere; color: var(--ink); }
.ev-facts .ok { color: var(--ok); }

/* Specs table */
.specs { margin: 48px 0 0; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.specs div { display: grid; grid-template-columns: 220px 1fr; gap: 24px; padding: 24px 30px; border-bottom: 1px solid var(--line); }
.specs div:last-child { border-bottom: 0; }
.specs dt { font: 400 0.88rem var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.specs dd { margin: 0; }

/* Dark call to action */
.cta {
  background: radial-gradient(700px 360px at 50% 40%, #4a4652, var(--dark) 70%);
  color: #fff; text-align: center; padding: 110px 0;
}
.cta h2 { color: #fff; }
.cta p { color: #c9c5cf; font-size: 1.12rem; margin: 22px auto 0; max-width: 560px; }

/* Footer */
.site-footer { padding: 72px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer-grid a:not(.brand) { display: block; text-decoration: none; margin: 10px 0; }
.footer-grid a:not(.brand):hover { color: var(--navy); }
.footer-head { font: 500 0.8rem var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin: 6px 0 16px; }
.footer-base { border-top: 1px solid var(--line); margin-top: 56px; padding-top: 24px; font: 400 0.85rem var(--mono); color: var(--muted); }

/* Responsive */
@media (max-width: 1000px) {
  .grid.steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .nav { display: none; }
  .hero { padding: 64px 0 48px; }
  .hero-inner, .grid.two, .footer-grid { grid-template-columns: 1fr; }
  .hero-art { order: 2; }
  .section { padding: 76px 0; }
  .specs div { grid-template-columns: 1fr; gap: 6px; }
}
@media (max-width: 560px) {
  .hero .eyebrow::after { display: none; }
  .grid.steps { grid-template-columns: 1fr; }
  .card { padding: 24px; }
  .btn { width: 100%; }
  .site-header .btn { width: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}

/* Docs page */
.docs-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 56px; padding: 56px 0 40px; }
.docs-side { position: relative; }
.docs-toc { position: sticky; top: 100px; max-height: calc(100vh - 120px); overflow: auto; }
.docs-toc summary { font: 500 0.85rem var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); cursor: pointer; list-style: none; margin-bottom: 8px; }
.docs-toc summary::-webkit-details-marker { display: none; }
.docs-toc nav a { display: block; padding: 5px 0 5px 12px; border-left: 1px solid var(--line); text-decoration: none; color: var(--muted); font-size: 0.94rem; }
.docs-toc nav a:hover { color: var(--navy); border-left-color: var(--navy); }
.toc-head { font: 500 0.75rem var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink); margin: 20px 0 6px; }
.docs-main { min-width: 0; font-feature-settings: "calt" 0; }
.docs-hero { padding-bottom: 12px; border-bottom: 1px solid var(--line); margin-bottom: 8px; }
.docs-hero h1 { font-size: clamp(2.4rem, 4.6vw, 3.6rem); }
.doc { padding: 40px 0 8px; scroll-margin-top: 90px; }
.doc h2 { font-size: clamp(1.9rem, 3vw, 2.4rem); margin-bottom: 16px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.doc h3 { font-size: 1.4rem; margin: 28px 0 8px; }
.doc p, .doc li { color: #3d3a36; }
.doc a { color: var(--navy); }
.doc-figure { margin: 24px 0; }
.doc-figure img { display: block; width: 100%; height: auto; border-radius: 14px; border: 1px solid var(--line); }
.doc-figure figcaption { margin-top: 10px; font-size: 0.9rem; color: var(--muted); }
.doc ul, .doc ol { padding-left: 22px; }
.doc li { margin: 6px 0; }
.doc table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 0.95rem; background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; display: block; overflow-x: auto; }
.doc thead th { text-align: left; font: 500 0.78rem var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); background: #faf8f4; }
.doc th, .doc td { padding: 12px 16px; border-bottom: 1px solid var(--line); vertical-align: top; }
.doc tbody tr:last-child td { border-bottom: 0; }
pre { background: #1f1d24; color: #ece9f2; border-radius: 14px; padding: 18px 20px; overflow-x: auto; font: 0.88rem/1.6 var(--mono); font-variant-ligatures: none; margin: 14px 0; }
pre code { background: none; padding: 0; color: inherit; font-size: inherit; }
.callout { background: var(--navy-soft); border: 1px solid #cfd8ea; border-radius: 16px; padding: 18px 22px; margin: 22px 0; }
.callout-title { font: 500 0.8rem var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--navy) !important; margin: 0 0 6px; }
.callout p:last-child { margin-bottom: 0; }
.tag { display: inline-block; font: 500 0.72rem var(--mono); letter-spacing: 0.04em; padding: 3px 9px; border-radius: 999px; vertical-align: middle; white-space: nowrap; }
.tag-live { background: #e5efe8; color: var(--ok); }
.tag-planned { background: #f3ece0; color: #8a5a20; }
.pipeline li, .steps-list > li { margin: 12px 0; }
.grid.compact { margin-top: 18px; }
.roadmap { list-style: none; padding-left: 0 !important; border-left: 2px solid var(--line); margin: 22px 0; }
.roadmap > li { position: relative; padding: 4px 0 18px 26px; margin: 0; }
.roadmap > li::before { content: ""; position: absolute; left: -7px; top: 10px; width: 12px; height: 12px; border-radius: 50%; background: var(--bg); border: 2px solid var(--navy); }
.roadmap > li:first-child::before { background: var(--navy); }
.rm-phase { font: 500 0.92rem var(--mono); color: var(--navy) !important; margin: 0 0 6px; }
.rm-gate { font-style: italic; }
.faq { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 20px; margin: 10px 0; }
.faq summary { cursor: pointer; font-weight: 500; }
.faq p { margin: 10px 0 2px; }
.nav a[aria-current="page"] { color: var(--ink); }

@media (max-width: 900px) {
  .docs-layout { grid-template-columns: 1fr; gap: 8px; padding-top: 24px; }
  .docs-toc { position: static; max-height: none; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 18px; }
  .docs-toc summary { margin: 0; }
  .docs-toc:not([open]) nav { display: none; }
}