@import url("https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&display=swap");

:root {
  --bg: #0a0d12;
  --bg-elev: #10141c;
  --panel: #141924;
  --panel-2: #1a2130;
  --text: #eaeef4;
  --muted: #8fa0b5;
  --line: #242e40;
  --line-soft: #1c2432;
  --accent: #e2b25a;          /* brass */
  --accent-2: #5fd39a;        /* signal green */
  --accent-cool: #7ab3e8;     /* link blue */
  --warn: #f0c14b;
  --bad: #f07178;
  --radius: 14px;
  --shadow: 0 18px 48px rgba(2, 5, 10, 0.5);
  --max: 1120px;
  --font: "DM Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --display: "Instrument Serif", Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font: 16px/1.55 var(--font);
  background:
    radial-gradient(1100px 520px at 8% -8%, rgba(226, 178, 90, 0.07), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(122, 179, 232, 0.06), transparent 50%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(226, 178, 90, 0.28); color: #fff; }

a { color: var(--accent-cool); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.wrap { width: min(var(--max), calc(100% - 2rem)); margin: 0 auto; }

/* ---- Nav ---- */
.site-nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(10, 13, 18, 0.86);
  border-bottom: 1px solid var(--line);
}
.site-nav::after {
  content: "";
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(226, 178, 90, 0.45), transparent);
}
.site-nav .inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 0.85rem 0; flex-wrap: wrap;
}
.brand {
  display: flex; align-items: center; gap: 0.65rem;
  color: var(--text); font-weight: 700; letter-spacing: -0.01em;
  font-family: var(--mono);
  font-size: 0.95rem;
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 26px; height: 26px; border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), #b07f2e);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.18),
    0 0 18px rgba(226, 178, 90, 0.35);
}
.nav-links { display: flex; gap: 0.3rem; flex-wrap: wrap; }
.nav-links a {
  color: var(--muted); padding: 0.38rem 0.8rem; border-radius: 999px;
  font-size: 0.9rem; text-decoration: none;
  border: 1px solid transparent;
  transition: color 120ms ease, background 120ms ease, border-color 120ms ease;
}
.nav-links a:hover {
  color: var(--text); background: var(--panel-2);
  text-decoration: none;
}
.nav-links a.active {
  color: var(--accent); background: rgba(226, 178, 90, 0.09);
  border-color: rgba(226, 178, 90, 0.35);
}

/* ---- Hero ---- */
.hero {
  padding: 3.4rem 0 2.1rem;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(143, 160, 181, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 160, 181, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(720px 340px at 18% 10%, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero > * { position: relative; }
.kicker {
  color: var(--accent); font-size: 0.74rem; font-weight: 700;
  font-family: var(--mono);
  letter-spacing: 0.18em; text-transform: uppercase; margin: 0 0 0.85rem;
}
.hero h1 {
  margin: 0 0 0.9rem;
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(2.4rem, 4.6vw, 3.4rem);
  line-height: 1.05; letter-spacing: 0.005em; max-width: 20ch;
}
.hero h1 em, .hero h1 .accent { font-style: italic; color: var(--accent); }
.lede {
  font-size: 1.11rem; color: #c3cfdf; max-width: 62ch; margin: 0 0 1.5rem;
}
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  font-size: 0.8rem; color: var(--muted);
  font-family: var(--mono);
  background: rgba(20, 25, 36, 0.85); border: 1px solid var(--line);
  padding: 0.42rem 0.8rem; border-radius: 999px;
  transition: border-color 120ms ease;
}
.chip:hover { border-color: rgba(226, 178, 90, 0.4); }
.chip strong { color: var(--text); font-weight: 650; }

/* ---- Layout ---- */
main { padding-bottom: 4rem; }
.grid-2 { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 1.1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
@media (max-width: 900px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}

.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.3rem 1.4rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, rgba(226, 178, 90, 0.5), rgba(122, 179, 232, 0.25) 40%, transparent 80%);
  pointer-events: none;
}
.card h2, .section-title {
  margin: 0 0 0.4rem;
  font-family: var(--display);
  font-weight: 400;
  font-size: 1.55rem;
  letter-spacing: 0.005em;
}
.card .sub, .muted { color: var(--muted); }
.section-lede { color: var(--muted); margin: 0 0 1.1rem; max-width: 70ch; }

.kpi {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.05rem 1.15rem;
  overflow: hidden;
}
.kpi::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent 70%);
  opacity: 0.7;
}
.kpi .label {
  color: var(--muted); font-size: 0.72rem;
  font-family: var(--mono);
  text-transform: uppercase; letter-spacing: 0.1em;
}
.kpi .value {
  font-size: 1.6rem; font-weight: 700; margin-top: 0.3rem;
  letter-spacing: -0.02em; font-variant-numeric: tabular-nums;
}
.kpi .hint { color: var(--muted); font-size: 0.82rem; margin-top: 0.25rem; }

.chart-box {
  position: relative;
  height: 360px;
  background:
    linear-gradient(rgba(143, 160, 181, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 160, 181, 0.03) 1px, transparent 1px),
    var(--bg-elev);
  background-size: 28px 28px, 28px 28px, auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.85rem;
}
.chart-box.tall { height: 400px; }
.chart-box.sm { height: 280px; }

/* ---- Tables ---- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-elev);
}
table.data {
  width: 100%; border-collapse: collapse; font-size: 0.92rem;
}
table.data th, table.data td {
  padding: 0.72rem 0.6rem; border-bottom: 1px solid var(--line-soft);
  text-align: left; vertical-align: top;
}
table.data tr:last-child td { border-bottom: none; }
table.data th {
  color: var(--muted); font-size: 0.7rem; text-transform: uppercase;
  font-family: var(--mono);
  letter-spacing: 0.09em; font-weight: 650;
  background: rgba(26, 33, 48, 0.6);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
table.data td.num, table.data th.num {
  text-align: right; font-variant-numeric: tabular-nums;
  font-family: var(--mono); font-size: 0.85rem;
}
table.data td.score { font-size: 1.12rem; font-weight: 700; color: var(--accent); }
table.data th.sortable { cursor: pointer; user-select: none; }
table.data th.sortable:hover { color: var(--text); }
table.data th.sortable::after { content: " ↕"; color: var(--line); font-weight: 400; }
table.data th.sortable[aria-sort="descending"]::after { content: " ↓"; color: var(--accent); }
table.data th.sortable[aria-sort="ascending"]::after { content: " ↑"; color: var(--accent); }
table.data tbody tr { transition: background 100ms ease; }
table.data tbody tr:nth-child(even) td { background: rgba(255, 255, 255, 0.015); }
table.data tbody tr:hover td { background: rgba(226, 178, 90, 0.05); }
table.data td:first-child { color: var(--muted); }
.model-link { color: var(--text); font-weight: 650; }
.model-link:hover { color: var(--accent); }
.subline { color: var(--muted); font-size: 0.78rem; margin-top: 0.15rem; font-family: var(--mono); }

/* ---- Domain cards ---- */
.domain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem; }
@media (max-width: 800px) { .domain-grid { grid-template-columns: 1fr; } }
.domain-card {
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: 12px; padding: 1rem 1.1rem;
}
.domain-card .badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border-radius: 0.55rem;
  background: rgba(226, 178, 90, 0.1); color: var(--accent);
  font-family: var(--mono); font-size: 0.85rem; font-weight: 700;
  margin-right: 0.55rem;
  box-shadow: inset 0 0 0 1px rgba(226, 178, 90, 0.3);
}
.domain-card h3 { margin: 0; display: flex; align-items: center; font-size: 1rem; }
.domain-card p { margin: 0.45rem 0 0; color: #c5d0e0; font-size: 0.92rem; }
.domain-card .who { color: var(--muted); font-size: 0.82rem; }

/* ---- Callouts ---- */
.callout {
  background: rgba(122, 179, 232, 0.05);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  padding: 0.9rem 1.05rem;
  color: #b7c4d6;
  margin: 1rem 0;
}
.callout strong { color: var(--text); }

/* ---- Model page ---- */
.hero-model { padding-top: 2.4rem; }
.stat-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.7rem; margin: 1rem 0;
}
@media (max-width: 700px) { .stat-grid { grid-template-columns: 1fr 1fr; } }
.stat {
  background: var(--bg-elev); border: 1px solid var(--line);
  border-radius: 10px; padding: 0.75rem 0.85rem;
}
.stat span {
  display: block; color: var(--muted); font-size: 0.72rem;
  font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.08em;
}
.stat strong { font-size: 1.15rem; font-variant-numeric: tabular-nums; }

.pass { color: var(--accent-2); font-weight: 700; }
.fail { color: var(--bad); font-weight: 700; }
.fail-list { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.fail-list code {
  font-family: var(--mono); font-size: 0.75rem;
  background: #2a1c22; color: #f5a8ad;
  padding: 0.2rem 0.45rem; border-radius: 5px;
}
.pass-list code {
  font-family: var(--mono); font-size: 0.75rem;
  background: #163126; color: #9be7c0;
  padding: 0.2rem 0.45rem; border-radius: 5px;
}

/* ---- Heatmap ---- */
.matrix { width: 100%; border-collapse: separate; border-spacing: 2px; font-size: 0.85rem; }
.matrix th, .matrix td {
  padding: 0.45rem 0.5rem; text-align: center;
}
.matrix th:first-child, .matrix td:first-child { text-align: left; }
.matrix th {
  color: var(--muted); font-size: 0.7rem;
  font-family: var(--mono); text-transform: uppercase;
  letter-spacing: 0.08em;
}
.matrix td { border-radius: 6px; font-family: var(--mono); font-size: 0.8rem; }
.matrix tbody th {
  font-family: var(--font); text-transform: none; letter-spacing: 0;
  font-size: 0.85rem; color: var(--text); text-align: left; font-weight: 600;
}
.cell-good { background: rgba(61, 178, 106, 0.3); color: #b8f0d2; }
.cell-ok { background: rgba(122, 179, 68, 0.24); color: #d6ecc0; }
.cell-mid { background: rgba(196, 154, 43, 0.26); color: #f2e2b0; }
.cell-bad { background: rgba(196, 84, 53, 0.3); color: #f6c0ad; }
.cell-dead { background: rgba(96, 52, 52, 0.5); color: #d0a0a0; }

footer.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted); font-size: 0.82rem;
  padding: 1.6rem 0 2.6rem;
}
footer.site-footer a { color: var(--accent); }

.stack { display: grid; gap: 1.2rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 1.5rem; }
.mb-0 { margin-bottom: 0; }

/* ---- Loading & error ---- */
.loading {
  color: var(--muted); padding: 3rem 0; text-align: center;
  font-family: var(--mono); font-size: 0.9rem;
}
.loading::after {
  content: "…";
  display: inline-block;
  animation: dots 1.4s steps(4, end) infinite;
  width: 1.4em; text-align: left;
}
@keyframes dots {
  0% { content: ""; }
  25% { content: "."; }
  50% { content: ".."; }
  75% { content: "..."; }
}
.error {
  color: var(--bad); background: #2a1c22; border: 1px solid #5a3038;
  padding: 1rem; border-radius: 10px;
  font-family: var(--mono); font-size: 0.88rem;
}

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

/* ---- Scrollbar (WebKit) ---- */
::-webkit-scrollbar { height: 10px; width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--line); border-radius: 999px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: var(--panel-2); }

/* A total that failed a SCORING.md trust flag. Shown, but never presented as a rank. */
.unranked {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.7;
}