:root {
  --bg: #0b0f17;
  --bg-2: #121826;
  --bg-3: #1a2233;
  --fg: #e6edf3;
  --fg-2: #9aa6b2;
  --fg-3: #5a6675;
  --accent: #22c55e;
  --accent-2: #34d399;
  --warn: #f97316;
  --bad: #ef4444;
  --line: #1f2a3d;
  --shadow: 0 12px 32px rgba(0,0,0,0.45);
  --grade-a: #22c55e;
  --grade-b: #84cc16;
  --grade-c: #eab308;
  --grade-d: #f97316;
  --grade-f: #ef4444;
  --grade-n: #64748b;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, "Helvetica Neue", sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #0d1320 0%, #0b0f17 100%);
  position: sticky; top: 0; z-index: 10;
}
.brand { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.logo {
  display: inline-flex; width: 36px; height: 36px; border-radius: 9px;
  background: var(--accent); color: #021;
  font-family: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  font-weight: 700; font-size: 22px;
  align-items: center; justify-content: center;
}
.title {
  font-family: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
  font-size: 18px; font-weight: 700; letter-spacing: -0.01em;
}
.tagline { color: var(--fg-2); font-size: 13px; }
.nav button {
  background: transparent; color: var(--fg-2);
  border: 1px solid transparent; padding: 7px 12px;
  border-radius: 8px; cursor: pointer; font-size: 13px;
  margin-left: 4px;
}
.nav button:hover { color: var(--fg); }
.nav button.active { color: var(--fg); background: var(--bg-3); border-color: var(--line); }

main {
  max-width: 1200px; margin: 0 auto; padding: 28px 28px 80px;
}
.view.hidden { display: none; }
.hero h1 {
  margin: 8px 0 6px;
  font-size: 32px; font-weight: 800; letter-spacing: -0.02em;
}
.lede { color: var(--fg-2); max-width: 720px; }
.metrics {
  display: grid; gap: 12px; margin: 24px 0 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.metrics > div {
  background: var(--bg-2); border: 1px solid var(--line);
  border-radius: 12px; padding: 12px 16px;
}
.metric-value { display: block; font-size: 22px; font-weight: 700; }
.metric-label { color: var(--fg-2); font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-2); box-shadow: var(--shadow); }
table.leaderboard {
  width: 100%;
  border-collapse: collapse;
  min-width: 880px;
}
table.leaderboard th, table.leaderboard td {
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line);
  font-size: 14px;
}
table.leaderboard th {
  position: sticky; top: 0;
  background: var(--bg-3);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  user-select: none;
  color: var(--fg-2);
}
table.leaderboard th.num, table.leaderboard td.num { text-align: right; font-variant-numeric: tabular-nums; }
table.leaderboard tbody tr:hover { background: var(--bg-3); cursor: pointer; }
.loading { text-align: center; color: var(--fg-2); padding: 24px !important; }
.cell-name { font-weight: 600; }
.cell-name .repo { color: var(--fg-2); font-weight: 400; font-family: "JetBrains Mono", "SF Mono", Menlo, monospace; font-size: 12px; margin-left: 6px; }
.cell-score { font-weight: 700; }
.cell-score .model { display: block; color: var(--fg-3); font-weight: 400; font-size: 11px; margin-top: 2px; }
.delta-up { color: var(--accent-2); }
.delta-down { color: var(--bad); }
.delta-flat { color: var(--fg-3); }
.grade { display: inline-block; min-width: 28px; text-align: center; padding: 2px 8px; border-radius: 6px; font-weight: 700; font-family: "JetBrains Mono", monospace; font-size: 13px; color: #021; }
.grade-A { background: var(--grade-a); }
.grade-B { background: var(--grade-b); }
.grade-C { background: var(--grade-c); color: #1a1a1a; }
.grade-D { background: var(--grade-d); color: #fff; }
.grade-F { background: var(--grade-f); color: #fff; }
.grade-N { background: var(--grade-n); color: #fff; }
.dash { color: var(--fg-3); }

.back {
  background: transparent; color: var(--accent-2); border: 1px solid var(--line);
  border-radius: 8px; padding: 6px 12px; cursor: pointer; margin-bottom: 14px;
}
.back:hover { background: var(--bg-3); }

#detail-body h1 { margin: 0 0 6px; }
.detail-grid { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; margin: 18px 0; }
.detail-card { background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.detail-card h3 { margin: 0 0 10px; font-size: 12px; color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.06em; }
.detail-card .big { font-size: 28px; font-weight: 700; }
.detail-card .sub { color: var(--fg-2); font-size: 13px; }
.detail-charts { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; margin: 18px 0; }
.chart-box { background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; padding: 16px; min-height: 220px; }
.chart-box h4 { margin: 0 0 10px; font-size: 12px; color: var(--fg-2); text-transform: uppercase; letter-spacing: 0.06em; }
.detail-list ul { list-style: none; padding: 0; margin: 0; }
.detail-list li { border-bottom: 1px solid var(--line); padding: 10px 0; }
.detail-list li:last-child { border: 0; }
.detail-list .row-title { font-weight: 600; }
.detail-list .row-meta { color: var(--fg-2); font-size: 12px; margin-top: 2px; font-family: "JetBrains Mono", monospace; }
.embed-snippet {
  margin-top: 10px; background: var(--bg); border: 1px solid var(--line);
  border-radius: 8px; padding: 10px; font-family: "JetBrains Mono", monospace; font-size: 12px; overflow-x: auto;
}

.feed { list-style: none; padding: 0; margin: 0; }
.feed li {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-2);
  padding: 12px 16px;
  margin-bottom: 10px;
}
.feed .title { font-weight: 600; }
.feed .meta { color: var(--fg-2); font-size: 12px; margin-top: 4px; }
.kind-badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.kind-swebench { background: rgba(34,197,94,0.18); color: var(--accent-2); }
.kind-release { background: rgba(132,204,22,0.18); color: #84cc16; }
.kind-star_milestone { background: rgba(251,146,60,0.18); color: #fb923c; }

.compare-controls { display: flex; align-items: center; gap: 12px; margin: 16px 0; flex-wrap: wrap; }
.compare-controls select { background: var(--bg-2); color: var(--fg); border: 1px solid var(--line); padding: 8px 10px; border-radius: 8px; }
.compare-controls button { background: var(--accent); color: #021; border: 0; padding: 8px 16px; border-radius: 8px; font-weight: 700; cursor: pointer; }
.compare-grid { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
.compare-grid .col { background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.compare-grid h3 { margin: 0 0 10px; }
.compare-grid table { width: 100%; border-collapse: collapse; font-size: 13px; }
.compare-grid td { padding: 4px 0; border-bottom: 1px solid var(--line); }
.compare-grid td:first-child { color: var(--fg-2); width: 40%; }

.methodology .source {
  background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin-bottom: 10px;
}
.methodology .source h4 { margin: 0; font-size: 14px; }
.methodology .source code { display: block; word-break: break-all; color: var(--accent-2); font-family: "JetBrains Mono", monospace; font-size: 12px; margin-top: 6px; }
.methodology .freq { color: var(--fg-2); font-size: 12px; }
.methodology .formula { background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: 14px; margin: 16px 0; }
.methodology .formula ul { margin: 6px 0 0 18px; padding: 0; }

.footer {
  border-top: 1px solid var(--line); padding: 18px 28px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  color: var(--fg-2); font-size: 13px;
  max-width: 1200px; margin: 0 auto;
}
.muted { color: var(--fg-3); }

@media (max-width: 720px) {
  .topbar { flex-direction: column; align-items: flex-start; gap: 10px; padding: 14px 16px; }
  main { padding: 18px 14px 60px; }
  .hero h1 { font-size: 24px; }
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .detail-grid, .detail-charts, .compare-grid { grid-template-columns: 1fr; }
  .footer { padding: 14px 16px; }
}