:root {
  --ink: #0e141b;
  --panel: #16202b;
  --panel-2: #121c26;
  --line: #2a3a4a;
  --text: #e7eef4;
  --muted: #93a4b5;
  --hold: #3dba8b;
  --breach: #e35d6a;
  --over: #e3b341;
  --accent: #c43c3c;
  --good: #7eb6d9;
  --input: #0b1117;
  --nav-active: #2b3d51;
  --max: 1100px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #2a1518 0%, transparent 50%), var(--ink);
  line-height: 1.55;
}
a { color: var(--good); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }

.top {
  border-bottom: 1px solid var(--line);
  padding: 20px 0 14px;
}
.top-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.brand {
  color: var(--text);
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.wordmark {
  margin: 0;
  letter-spacing: 0.04em;
  font-size: 1.45rem;
  font-weight: 700;
}
.wordmark span { color: var(--accent); }
.brand-lede {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 36rem;
}
.nav { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.nav a {
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 0.92rem;
  text-decoration: none;
}
.nav a:hover { color: var(--text); text-decoration: none; background: var(--nav-active); }
.nav a.active, .nav a.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.nav a.btn-primary:hover { background: #a83333; }
.chip { color: var(--good); font-size: 0.88rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: 6px;
  padding: 10px 14px;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-ghost, .btn-secondary {
  background: var(--nav-active);
  color: var(--text);
}
.btn-cyan {
  background: var(--nav-active);
  color: var(--good);
  border: 1px solid #3d5570;
}

.hero {
  padding: 36px 0 8px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 20px;
  align-items: start;
}
h1 {
  margin: 0 0 12px;
  font-size: clamp(1.7rem, 3.2vw, 2.35rem);
  letter-spacing: 0.01em;
  line-height: 1.2;
  font-weight: 700;
}
h2 {
  margin: 0 0 12px;
  font-size: 1.05rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
h3 { margin: 0 0 8px; font-size: 1.05rem; font-weight: 600; }
.lede { margin: 0 0 16px; color: var(--muted); max-width: 42rem; }
.kicker {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.hero p { line-height: 1.55; }

section.block {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px 20px;
  margin: 16px 0;
}
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
  background: var(--panel-2);
}
.card p, .muted { color: var(--muted); margin: 0; }
.card p + p { margin-top: 8px; }
.pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.78rem;
  margin-bottom: 8px;
  background: #1c3d32;
  color: var(--hold);
}
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px;
}
.stat b { display: block; color: var(--good); }
.stat span { color: var(--muted); font-size: 0.88rem; }

form { display: grid; gap: 4px; }
label { display: block; margin: 12px 0 6px; color: var(--muted); font-size: 0.92rem; }
input, select, textarea {
  width: 100%;
  font: inherit;
  color: var(--text);
  background: var(--input);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
}
textarea { min-height: 88px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.note, .hint { color: var(--muted); font-size: 0.88rem; line-height: 1.45; }
.ok { color: var(--hold); }
.err { color: var(--breach); }
.banner {
  display: none;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--input);
  margin-bottom: 8px;
}
pre.cmd {
  background: var(--input);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  overflow-x: auto;
  white-space: pre-wrap;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88rem;
  line-height: 1.5;
  margin-top: 12px;
}

.compare { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.compare th, .compare td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.compare th { color: var(--muted); font-weight: 600; font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; }

.foot {
  border-top: 1px solid var(--line);
  padding: 20px 0 36px;
  color: var(--muted);
  font-size: 0.88rem;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.docs-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 20px;
  padding: 24px 0 56px;
  align-items: start;
}
.docs-toc {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px;
  position: sticky;
  top: 16px;
}
.docs-toc h2 { margin-bottom: 10px; }
.docs-toc a {
  display: block;
  color: var(--muted);
  padding: 6px 0;
  font-size: 0.9rem;
  text-decoration: none;
}
.docs-toc a:hover { color: var(--text); }
.docs-body section {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px 20px;
  margin-bottom: 16px;
}
.docs-body h1 { font-size: 1.7rem; }
.docs-body ol { padding-left: 20px; color: var(--text); }
.docs-body code, .docs-body pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.88rem;
}
.docs-body pre {
  background: var(--input);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  overflow-x: auto;
  white-space: pre-wrap;
  color: var(--text);
  line-height: 1.5;
}
.row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.menu {
  display: none;
  font: inherit;
  cursor: pointer;
  background: var(--nav-active);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 12px;
}

.arch-page { padding: 28px 0 56px; }
.arch-page h1 { max-width: 38rem; }
.arch-hold {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  margin: 0 0 18px;
}
.arch-hold .pill { margin: 2px 0 0; flex-shrink: 0; }
.arch-hold p { margin: 0; color: var(--muted); }
.arch-hold strong { color: var(--text); }
.arch-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 0.88rem;
}
.arch-legend i {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  margin-right: 6px;
  vertical-align: middle;
  border: 1px solid var(--line);
}
.sw-cat { background: #243044; }
.sw-har { background: #2a1518; }
.sw-sut { background: #15202c; }
.sw-ext { background: #1a2830; }
.sw-ora { background: #1c3d32; }
.arch-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: 16px;
  align-items: start;
  margin-bottom: 20px;
}
.arch-board {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 16px 18px;
}
.arch-stage h2 {
  margin: 0 0 10px;
  font-size: 0.72rem;
}
.arch-nodes { display: flex; flex-wrap: wrap; gap: 8px; }
.arch-node {
  font: inherit;
  cursor: pointer;
  text-align: left;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  min-height: 44px;
  min-width: 7.5rem;
}
.arch-node:hover, .arch-node:focus-visible {
  color: var(--text);
  border-color: var(--good);
  outline: none;
}
.arch-node.on { border-color: var(--accent); background: #1c1012; }
.arch-node.cat { border-top: 2px solid #6d8aa8; }
.arch-node.har { border-top: 2px solid var(--accent); }
.arch-node.sut { border-top: 2px solid var(--good); }
.arch-node.ext { border-top: 2px solid var(--over); }
.arch-node.ora { border-top: 2px solid var(--hold); }
.arch-join {
  width: 2px;
  height: 14px;
  margin: 8px 0 8px 18px;
  background: var(--line);
}
.arch-detail {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px 18px 18px;
  position: sticky;
  top: 16px;
  min-height: 180px;
}
.arch-detail h3 { margin: 0 0 8px; }
.arch-seq {
  margin: 0;
  padding-left: 22px;
  color: var(--text);
}
.arch-seq li { margin: 0 0 8px; }
.arch-seq b { color: var(--good); }

@media (max-width: 980px) {
  .hero, .grid-2, .form-row, .stats, .docs-shell, .arch-layout { grid-template-columns: 1fr; }
  .docs-toc, .arch-detail { position: static; }
  .wrap { width: min(var(--max), calc(100% - 32px)); }
  .menu { display: inline-flex; }
  .nav { display: none; width: 100%; }
  .nav.open { display: flex; }
}