/* toolchain-shift — dark theme, vanilla, no framework */
:root {
  --bg: #0c1018;
  --bg-elev: #131a26;
  --bg-row: #0f1521;
  --bg-row-alt: #121828;
  --border: #1f2a3e;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --text-dimmer: #64748b;
  --accent: #7dd3fc;
  --challenger: #7dd3fc;
  --incumbent: #fda4af;
  --good: #22c55e;
  --warn: #eab308;
  --bad: #f43f5e;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: var(--sans); }
body { min-height: 100vh; display: flex; flex-direction: column; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, #0f1521, #0c1018);
  position: sticky; top: 0; z-index: 10;
  flex-wrap: wrap; gap: 10px;
}
.brand { display: flex; align-items: baseline; gap: 14px; }
.brand a { display: flex; align-items: baseline; gap: 8px; color: var(--text); }
.brand .logo { font-size: 22px; color: var(--accent); }
.brand .title { font-family: var(--mono); font-weight: 800; font-size: 18px; letter-spacing: -0.01em; }
.brand .sub { color: var(--text-dim); font-size: 13px; }
nav { display: flex; gap: 16px; flex-wrap: wrap; }
nav a { color: var(--text-dim); font-size: 14px; padding: 4px 6px; border-radius: 4px; }
nav a.active { color: var(--text); background: var(--bg-elev); }
.status { display: flex; align-items: center; gap: 8px; font-family: var(--mono); font-size: 12px; color: var(--text-dim); }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--text-dimmer); }
.dot.ok { background: var(--good); box-shadow: 0 0 8px rgba(34,197,94,0.5); }
.dot.warn { background: var(--warn); }
.dot.bad { background: var(--bad); }
.dot.dim { background: var(--text-dimmer); }

main {
  flex: 1;
  padding: 22px 22px 60px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}

footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
  text-align: center;
}

.empty { color: var(--text-dim); padding: 30px; text-align: center; font-family: var(--mono); }
.empty.err { color: var(--bad); }

h1 { font-size: 22px; margin: 0 0 6px; letter-spacing: -0.01em; }
h2 { font-size: 18px; margin: 24px 0 10px; }
.subhead { color: var(--text-dim); margin: 0 0 18px; font-size: 14px; }

/* leaderboard */
.controls { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.controls .pill {
  background: var(--bg-elev); border: 1px solid var(--border); color: var(--text-dim);
  padding: 4px 10px; border-radius: 99px; font-size: 12px; cursor: pointer;
}
.controls .pill.active { color: var(--text); border-color: var(--accent); }
.controls input, .controls select {
  background: var(--bg-elev); color: var(--text); border: 1px solid var(--border);
  padding: 5px 9px; border-radius: 4px; font-family: var(--mono); font-size: 13px;
}

table.lb {
  width: 100%; border-collapse: collapse; font-size: 13px; font-family: var(--mono);
}
table.lb th, table.lb td {
  text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border);
}
table.lb th {
  font-weight: 600; color: var(--text-dim); cursor: pointer; user-select: none;
  position: sticky; top: 70px; background: var(--bg);
}
table.lb th.sortable:hover { color: var(--text); }
table.lb th .arrow { color: var(--accent); margin-left: 4px; }
table.lb tbody tr { background: var(--bg-row); }
table.lb tbody tr:nth-child(odd) { background: var(--bg-row-alt); }
table.lb tbody tr:hover { background: #1a2335; }
table.lb tbody tr.click { cursor: pointer; }
.cat-tag {
  font-size: 11px; color: var(--text-dim); background: var(--bg-elev);
  border: 1px solid var(--border); border-radius: 99px; padding: 1px 8px;
}
.lang-tag { font-size: 11px; color: var(--accent); margin-left: 6px; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.pos { color: var(--good); }
.neg { color: var(--bad); }
.zero { color: var(--text-dim); }
.share-bar {
  display: inline-block; width: 120px; height: 8px; background: #1c2638;
  border-radius: 4px; overflow: hidden; vertical-align: middle; margin-right: 6px;
}
.share-bar > i { display: block; height: 100%; background: var(--challenger); }
.tip-badge {
  display: inline-block; font-size: 10px; padding: 1px 6px; border-radius: 4px; margin-left: 4px;
  background: rgba(125,211,252,0.15); color: var(--challenger); border: 1px solid rgba(125,211,252,0.3);
}
.tip-50 { background: rgba(34,197,94,0.15); color: var(--good); border-color: rgba(34,197,94,0.3); }
.tip-75 { background: rgba(34,197,94,0.25); color: var(--good); border-color: rgba(34,197,94,0.4); }
.tip-un { background: rgba(244,63,94,0.15); color: var(--bad); border-color: rgba(244,63,94,0.3); }

/* shift cards */
.shift-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 16px;
}
.shift-card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px;
}
.shift-card .name { font-size: 16px; margin: 0 0 4px; }
.shift-card .cat { font-size: 12px; color: var(--text-dim); margin-bottom: 8px; }
.shift-card .share { font-family: var(--mono); font-size: 30px; font-weight: 800; }
.shift-card .delta { font-family: var(--mono); font-size: 14px; margin-left: 8px; }
.shift-card .links { margin-top: 10px; font-size: 12px; }
.shift-card .links a { margin-right: 10px; }

/* pair detail */
.pair-head { display: flex; align-items: flex-start; gap: 30px; flex-wrap: wrap; margin-bottom: 18px; }
.pair-head .left { flex: 1; min-width: 280px; }
.pair-head .right {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px; min-width: 280px;
}
.pair-head .share-big { font-family: var(--mono); font-size: 56px; font-weight: 800; line-height: 1; margin: 6px 0; }
.pair-head .pair-cat { color: var(--text-dim); font-size: 13px; }
.pair-head .timeline {
  font-family: var(--mono); font-size: 12px; color: var(--text-dim); margin-top: 12px;
}
.pair-head .timeline div { padding: 2px 0; }

.metric-table { width: 100%; font-size: 13px; font-family: var(--mono); border-collapse: collapse; margin: 10px 0 18px; }
.metric-table th, .metric-table td { padding: 6px 9px; border-bottom: 1px solid var(--border); }
.metric-table th { text-align: left; color: var(--text-dim); font-weight: 500; }
.metric-table td.inc { color: var(--incumbent); }
.metric-table td.chal { color: var(--challenger); }

.chart-wrap {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 8px; padding: 14px;
  margin-top: 8px;
}
.chart-legend { font-family: var(--mono); font-size: 12px; color: var(--text-dim); display: flex; gap: 18px; margin-bottom: 8px; }
.chart-legend .swatch { display: inline-block; width: 10px; height: 10px; margin-right: 5px; vertical-align: middle; border-radius: 2px; }
svg.chart { width: 100%; height: 320px; display: block; }

.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
button, .button {
  background: var(--bg-elev); color: var(--text); border: 1px solid var(--border);
  font-family: var(--mono); font-size: 13px; padding: 6px 11px; border-radius: 4px; cursor: pointer;
}
button:hover { border-color: var(--accent); color: var(--accent); }
button:disabled { opacity: 0.5; cursor: wait; }

.embed-box {
  background: #06090f; border: 1px solid var(--border); border-radius: 4px;
  padding: 10px; margin-top: 10px;
  font-family: var(--mono); font-size: 12px; color: var(--text-dim);
  word-break: break-all;
}
.embed-box code { color: var(--text); }

/* tipping */
.tip-list { list-style: none; padding: 0; margin: 0; }
.tip-list li {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 6px;
  padding: 10px 14px; margin-bottom: 8px; display: flex; gap: 16px; align-items: center;
  font-family: var(--mono); font-size: 13px;
}
.tip-list li .when { color: var(--text-dim); width: 110px; flex-shrink: 0; }
.tip-list li .thr { width: 52px; flex-shrink: 0; }

/* log */
.log-table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12px; }
.log-table th, .log-table td { padding: 4px 8px; border-bottom: 1px solid var(--border); }
.log-table th { text-align: left; color: var(--text-dim); }
.log-table tr.status-ok td.st { color: var(--good); }
.log-table tr.status-bad td.st { color: var(--bad); }
.log-table tr.status-warn td.st { color: var(--warn); }
.log-table td.msg { color: var(--text-dim); }

/* about */
.about-card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: 8px;
  padding: 18px 22px; max-width: 760px;
}
.about-card h2:first-child { margin-top: 0; }
.about-card p { line-height: 1.6; }
.about-card code { background: #06090f; padding: 1px 5px; border-radius: 3px; font-family: var(--mono); font-size: 12px; }

/* responsive */
@media (max-width: 640px) {
  .topbar { padding: 12px 14px; }
  main { padding: 14px 14px 40px; }
  table.lb th, table.lb td { padding: 7px 6px; font-size: 12px; }
  .share-bar { width: 60px; }
  table.lb thead { display: none; }
  table.lb tbody tr { display: block; padding: 10px; }
  table.lb tbody td { display: block; border: none; padding: 2px 0; }
}