/* prefers-color-scheme:dark */
:root {
  color-scheme: light;
  --bg: #ffffff;
  --surface: #f5f7f7;
  --surface-strong: #ffffff;
  --text: #101617;
  --muted: #667174;
  --line: #dfe5e5;
  --teal: #0f8f8a;
  --teal-strong: #087772;
  --pink: #c95782;
  --focus: rgba(15, 143, 138, .2);
  --shadow: 0 10px 28px rgba(16, 22, 23, .07);
  --radius: 12px;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0d1011;
  --surface: #171b1c;
  --surface-strong: #1d2223;
  --text: #f1f5f5;
  --muted: #a2adaf;
  --line: #2d3536;
  --teal: #45c3bb;
  --teal-strong: #69d3cb;
  --pink: #e47eaa;
  --focus: rgba(69, 195, 187, .23);
  --shadow: 0 12px 30px rgba(0, 0, 0, .24);
}
@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0d1011; --surface: #171b1c; --surface-strong: #1d2223;
    --text: #f1f5f5; --muted: #a2adaf; --line: #2d3536;
    --teal: #45c3bb; --teal-strong: #69d3cb; --pink: #e47eaa;
    --focus: rgba(69, 195, 187, .23); --shadow: 0 12px 30px rgba(0,0,0,.24);
  }
}
* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--bg); color: var(--text); font: 16px/1.55 var(--sans); text-rendering: optimizeLegibility; }
a { color: var(--teal); text-underline-offset: 3px; }
button, input, select { font: inherit; }
button, a, select, input { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
.page { max-width: 1160px; margin: 0 auto; padding: 18px clamp(18px, 5vw, 64px) 80px; }
.site-header { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 24px; min-height: 62px; border-bottom: 1px solid var(--line); }
.brand { color: var(--text); font-size: .9rem; font-weight: 800; letter-spacing: .12em; text-decoration: none; text-transform: uppercase; white-space: nowrap; }
.primary-nav { display: flex; align-items: center; justify-content: center; gap: 6px; }
.primary-nav a, .mobile-nav summary { border-radius: 8px; color: var(--muted); font-size: .82rem; font-weight: 680; min-height: 44px; padding: 11px 13px; text-decoration: none; }
.primary-nav a:hover, .primary-nav a[aria-current="page"], .mobile-nav summary:hover { color: var(--teal); }
.primary-nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--teal); }
.header-tools { display: flex; align-items: center; gap: 12px; }
.theme-toggle { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--muted); cursor: pointer; font-size: .72rem; font-weight: 680; min-height: 44px; padding: 8px 11px; white-space: nowrap; }
.theme-toggle:hover { border-color: var(--teal); color: var(--teal); }
.compact-search { position: relative; width: min(340px, 32vw); }
.compact-search input { width: 100%; min-height: 44px; border: 1px solid var(--line); border-radius: 9px; background: var(--surface); color: var(--text); padding: 8px 32px 8px 34px; }
.compact-search input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px var(--focus); outline: 0; }
.search-shortcut { position: absolute; z-index: 1; top: 50%; left: 12px; color: var(--muted); font-size: .8rem; transform: translateY(-50%); }
.mobile-nav { display: none; }
.breadcrumbs { display: flex; flex-wrap: wrap; gap: 7px; margin: 34px 0 0; color: var(--muted); font-size: .8rem; }
.breadcrumbs a { color: var(--muted); }
.breadcrumbs span:last-child { color: var(--text); }
.hero { max-width: 820px; padding: clamp(72px, 12vh, 132px) 0 36px; }
.hero h1, .page-header h1 { margin: 0; font-size: clamp(2.5rem, 6vw, 5rem); font-weight: 780; letter-spacing: -.07em; line-height: .98; }
.hero h1 { font-size: clamp(2.7rem, 7vw, 5.6rem); }
.search-wrap { position: relative; margin-top: 34px; }
.search-box { display: flex; align-items: center; gap: 8px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-strong); box-shadow: var(--shadow); padding: 5px 7px 5px 15px; }
.search-box:focus-within { border-color: var(--teal); box-shadow: 0 0 0 4px var(--focus), var(--shadow); }
.search-box input { min-width: 0; flex: 1; border: 0; background: transparent; color: var(--text); outline: 0; padding: 13px 0; }
.search-box input::placeholder { color: var(--muted); }
.search-submit { border: 0; border-radius: 8px; background: var(--teal); color: #fff; cursor: pointer; font-weight: 700; padding: 11px 15px; }
.search-submit:hover { background: var(--teal-strong); }
.clear-search { display: none; border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: 1.25rem; line-height: 1; padding: 10px; }
.clear-search.visible { display: block; }
.suggestions { position: absolute; z-index: 20; top: calc(100% + 7px); right: 0; left: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 10px; background: var(--surface-strong); box-shadow: var(--shadow); }
.suggestions.hidden, .results-area.hidden { display: none; }
.suggestion { display: flex; align-items: center; justify-content: space-between; width: 100%; border: 0; background: transparent; color: var(--text); cursor: pointer; gap: 12px; padding: 11px 14px; text-align: left; }
.suggestion:hover, .suggestion.active { background: color-mix(in srgb, var(--teal) 9%, var(--surface-strong)); }
.suggestion small { color: var(--muted); font-size: .68rem; letter-spacing: .04em; text-transform: uppercase; }
.hub-links { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 17px; }
.hub-links a, .button-link { border: 1px solid var(--line); border-radius: 99px; color: var(--muted); font-size: .78rem; padding: 8px 12px; text-decoration: none; }
.hub-links a:hover, .button-link:hover { border-color: var(--teal); color: var(--teal); }
.results-area { margin-top: 34px; }
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; }
.status { color: var(--muted); font-size: .86rem; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filters select, .browser-filters input, .browser-filters select { min-height: 40px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--text); padding: 7px 10px; }
.result-list { display: grid; gap: 28px; }
.result-section { display: grid; gap: 10px; }
.result-section > h2 { margin: 0; color: var(--muted); font-size: .76rem; letter-spacing: .1em; text-transform: uppercase; }
.result-card, .panel, .directory-card, .component-card { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-strong); }
.result-card { padding: 20px 21px; }
.result-card.best { border-color: color-mix(in srgb, var(--teal) 48%, var(--line)); box-shadow: var(--shadow); }
.result-card h2 { margin: 9px 0 8px; font-size: 1.35rem; letter-spacing: -.03em; }
.result-main-link { display: flex; align-items: center; justify-content: space-between; gap: 12px; color: var(--text); text-decoration: none; }
.result-main-link:hover { color: var(--teal); }
.result-main-arrow { color: var(--teal); font-size: 1.1rem; }
.result-card p { margin: 0; }
.excerpt { color: var(--text); line-height: 1.62; white-space: pre-wrap; }
.result-card .excerpt { display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 7; }
.related-results { display: grid; gap: 0; margin-top: 20px; border-top: 1px solid var(--line); }
.related-results h3 { margin: 13px 0 2px; font-size: .82rem; }
.related-result { display: grid; grid-template-columns: 62px 1fr; gap: 12px; border-top: 1px solid var(--line); color: var(--text); padding: 10px 0; text-decoration: none; }
.related-result:hover { color: var(--teal); }
.related-result strong { color: var(--teal); }
.related-result span { color: var(--muted); display: -webkit-box; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.meta, .component-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.badge { border: 1px solid var(--line); border-radius: 5px; color: var(--muted); font-size: .66rem; font-weight: 700; letter-spacing: .06em; padding: 4px 7px; text-transform: uppercase; }
.badge.teal { border-color: color-mix(in srgb, var(--teal) 55%, var(--line)); color: var(--teal); }
.badge.pink { border-color: color-mix(in srgb, var(--pink) 50%, var(--line)); color: var(--pink); }
.result-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 13px; }
.result-actions a, .source-disclosure summary { color: var(--teal); cursor: pointer; font-size: .8rem; font-weight: 650; }
.source-disclosure { margin-top: 13px; border-top: 1px solid var(--line); padding-top: 11px; }
.source-disclosure summary { list-style: none; }
.source-disclosure summary::-webkit-details-marker { display: none; }
.source-disclosure summary::before { content: "+"; display: inline-block; margin-right: 6px; }
.source-disclosure[open] summary::before { content: "-"; }
.source-details { display: grid; gap: 4px; margin-top: 10px; color: var(--muted); font-size: .82rem; }
.source-details strong { color: var(--text); font-weight: 650; }
.empty, .notice { color: var(--muted); padding: 22px 0; }
.page-header { max-width: 800px; padding: 52px 0 30px; }
.compact-page-header { padding-bottom: 18px; }
.eyebrow { margin: 0 0 12px; color: var(--teal); font-size: .7rem; font-weight: 750; letter-spacing: .11em; text-transform: uppercase; }
.lede { max-width: 650px; color: var(--muted); margin: 17px 0 0; }
.section-nav { display: flex; flex-wrap: wrap; gap: 8px; border-block: 1px solid var(--line); padding: 13px 0; }
.section-nav a { color: var(--muted); font-size: .76rem; font-weight: 700; padding: 8px 0; text-decoration: none; text-transform: uppercase; }
.section-nav a:hover { color: var(--teal); }
.directory { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 24px; }
.directory-card, .component-card, .panel { padding: 18px; }
.directory-card { color: var(--text); text-decoration: none; }
.directory-card:hover, .component-card:hover { border-color: color-mix(in srgb, var(--teal) 48%, var(--line)); }
.directory-card h2, .component-card h2, .panel h2 { margin: 8px 0; font-size: 1.12rem; letter-spacing: -.025em; }
.directory-card p, .component-card p, .panel p { color: var(--muted); margin: 8px 0 0; }
.directory-expansion, .component-meta { color: var(--teal); font-size: .67rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.browser-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 14px; }
.browser-filters input { flex: 1 1 220px; }
.filter-button { border: 0; border-radius: 8px; background: var(--teal); color: white; cursor: pointer; font-weight: 700; padding: 9px 14px; }
.filter-clear { align-self: center; color: var(--muted); font-size: .82rem; }
.count { color: var(--muted); font-size: .85rem; }
.component-list { display: grid; gap: 10px; margin-top: 18px; }
.component-card h2 a { color: var(--text); text-decoration: none; }
.component-card h2 a:hover { color: var(--teal); }
.component-card small, .source-note { color: var(--muted); font-size: .78rem; }
.component-card .faction { font-size: .84rem; }
.component-card .faction a { font-weight: 650; }
.record-detail, .rule-detail { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr); gap: 16px; margin-top: 24px; }
.provenance-list { display: grid; gap: 9px; margin: 0; }
.provenance-list div { display: grid; grid-template-columns: 110px 1fr; gap: 12px; }
.provenance-list dt { color: var(--muted); }
.provenance-list dd { margin: 0; overflow-wrap: anywhere; }
.context-back { margin-top: 28px; }
.context-back a { color: var(--muted); font-size: .86rem; font-weight: 680; text-decoration: none; }
.context-back a:hover { color: var(--teal); }
.detail-header { padding-top: 18px; padding-bottom: 22px; }
.rule-reading { max-width: 800px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 23px 0; }
.rule-reading h2 { margin: 0 0 12px; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; }
.rule-source { margin-top: 22px; }
.rule-source .source-disclosure { margin-top: 0; border-top: 0; padding-top: 0; }
.related-rules { max-width: 800px; margin-top: 28px; }
.related-rules h2 { font-size: 1.05rem; }
.related-rule { display: grid; grid-template-columns: 66px 1fr; gap: 12px; border-top: 1px solid var(--line); color: var(--text); padding: 12px 0; text-decoration: none; }
.related-rule strong { color: var(--teal); }
.related-rule span { color: var(--muted); }
.alphabet-nav { display: flex; flex-wrap: wrap; gap: 4px; border-block: 1px solid var(--line); padding: 9px 0; position: sticky; top: 0; z-index: 5; background: var(--bg); }
.alphabet-nav a, .alphabet-nav span { display: grid; place-items: center; min-width: 34px; min-height: 36px; border-radius: 6px; color: var(--muted); font-size: .78rem; font-weight: 700; text-decoration: none; }
.alphabet-nav a:hover { background: var(--surface); color: var(--teal); }
.rules-directory { display: grid; gap: 42px; margin-top: 28px; }
.rules-block { min-width: 0; }
.directory-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.directory-heading h2 { margin: 0; font-size: 1.25rem; }
.directory-heading span { color: var(--muted); font-size: .78rem; }
.rule-number-list, .topic-index { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 28px; }
.rule-directory-row, .topic-row { display: grid; grid-template-columns: 70px minmax(0, 1fr); gap: 12px; border-top: 1px solid var(--line); color: var(--text); padding: 12px 0; text-decoration: none; }
.rule-directory-row:hover, .topic-row:hover { color: var(--teal); }
.rule-number { color: var(--teal); font-weight: 760; }
.rule-directory-copy, .topic-row { min-width: 0; }
.rule-directory-copy strong, .topic-row strong { display: block; font-size: .92rem; }
.rule-directory-copy small, .topic-row small { display: block; color: var(--muted); font-size: .8rem; line-height: 1.4; margin-top: 3px; }
.topic-section { min-width: 0; scroll-margin-top: 58px; }
.topic-section h3 { margin: 18px 0 0; color: var(--teal); font-size: .88rem; letter-spacing: .08em; }
.topic-section .topic-row { grid-template-columns: minmax(0, 1fr); }
.faction-mark { display: inline-grid; place-items: center; width: 38px; height: 38px; border: 2px solid var(--teal); border-radius: 50%; color: var(--teal); font-size: .8rem; font-weight: 800; letter-spacing: .04em; }
.faction-sections { display: grid; gap: 38px; margin-top: 30px; }
.faction-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.fact p { color: var(--text); }
.fact small { color: var(--muted); }
.fact h3 { margin: 0 0 7px; font-size: 1rem; }
.setup-list { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.setup-list li { display: grid; grid-template-columns: minmax(120px, .45fr) 1fr; gap: 12px; border-bottom: 1px solid var(--line); padding: 8px 0; }
.setup-list strong { font-size: .86rem; }
.component-rows { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.component-rows li { border-bottom: 1px solid var(--line); padding: 8px 0; }
.analysis-section { border-top: 2px solid color-mix(in srgb, var(--pink) 45%, var(--line)); padding-top: 26px; }
.strategy-empty { border-left: 3px solid var(--pink); color: var(--muted); padding: 10px 14px; }
.pagination { display: flex; justify-content: space-between; gap: 12px; margin-top: 22px; }
.pagination a { color: var(--teal); font-size: .84rem; }
.trust-note { color: var(--muted); font-size: .78rem; margin-top: 24px; }
.hidden { display: none !important; }
@media (max-width: 900px) {
  .site-header { grid-template-columns: auto 1fr auto; gap: 10px; }
  .primary-nav { gap: 0; }
  .primary-nav a { padding-inline: 8px; }
  .compact-search { width: min(260px, 29vw); }
}
@media (max-width: 700px) {
  .page { padding-top: 12px; }
  .site-header { grid-template-columns: 1fr auto; min-height: 58px; }
  .primary-nav { display: none; }
  .header-tools { justify-content: flex-end; }
  .compact-search { grid-column: 1 / -1; grid-row: 2; width: 100%; }
  .header-tools { display: contents; }
  .theme-toggle { grid-column: 2; grid-row: 1; }
  .mobile-nav { display: block; grid-column: 1 / -1; position: relative; }
  .mobile-nav summary { display: inline-block; cursor: pointer; list-style: none; padding: 8px 0; }
  .mobile-nav summary::-webkit-details-marker { display: none; }
  .mobile-nav[open] { border-top: 1px solid var(--line); padding-top: 5px; }
  .mobile-nav-links { display: grid; grid-template-columns: repeat(4, 1fr); gap: 5px; padding-bottom: 7px; }
  .mobile-nav-links a { border-radius: 7px; color: var(--muted); font-size: .76rem; padding: 9px 4px; text-align: center; text-decoration: none; }
  .mobile-nav-links a:hover, .mobile-nav-links a[aria-current="page"] { background: var(--surface); color: var(--teal); }
  .hero { padding-top: 58px; }
  .hero h1, .page-header h1 { font-size: clamp(2.45rem, 13vw, 4rem); }
  .toolbar { align-items: stretch; flex-direction: column; }
  .filters select { flex: 1; }
  .directory { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .record-detail, .rule-detail, .faction-grid { grid-template-columns: 1fr; }
  .rule-number-list, .topic-index { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .brand { font-size: .78rem; letter-spacing: .08em; }
  .theme-toggle { font-size: .68rem; }
  .search-box { padding-left: 11px; }
  .search-submit { padding-inline: 11px; }
  .directory { grid-template-columns: 1fr; }
  .mobile-nav-links { grid-template-columns: repeat(2, 1fr); }
  .setup-list li, .provenance-list div { grid-template-columns: 1fr; gap: 2px; }
  .related-result, .related-rule { grid-template-columns: 52px 1fr; gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; }
}