:root {
  --bg: #2a2a2a;
  --card: #333333;
  --ink: #f4f4f4;
  --muted: #c8c8c8;
  --line: #4a4a4a;
  --accent: #e8e8e8;
  --warn: #f0d9a8;
  --warn-bg: #3d3528;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.45;
  color-scheme: dark;
}
a { color: var(--accent); }
header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 0.85rem 1.25rem;
}
header a { color: var(--ink); text-decoration: none; font-weight: 650; }
header img {
  display: block;
  width: min(280px, 70vw);
  height: auto;
}
.wrap { max-width: 1200px; margin: 0 auto; padding: 1rem 1.25rem 2.5rem; }
h1 { font-size: 1.35rem; margin: 0.2rem 0 0.4rem; color: var(--ink); }
.muted { color: var(--muted); font-size: 0.92rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.9rem 1rem 1.1rem;
  margin: 0.9rem 0;
}
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  align-items: center;
  margin: 0.4rem 0 0.7rem;
}
.controls label { font-size: 0.9rem; color: var(--muted); }
select, button {
  background: #3a3a3a;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.28rem 0.5rem;
  font: inherit;
}
button { cursor: pointer; }
.ticks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.85rem;
  margin: 0.35rem 0 0.7rem;
}
.ticks label { font-size: 0.9rem; color: var(--muted); display: inline-flex; align-items: center; gap: 0.25rem; }
.swatch {
  display: inline-block;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 2px;
  flex: 0 0 auto;
}
.table-wrap { overflow-x: auto; }
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.88rem;
  color: var(--ink);
}
th, td {
  border-bottom: 1px solid var(--line);
  padding: 0.38rem 0.5rem;
  text-align: left;
  white-space: nowrap;
}
th { color: var(--muted); font-weight: 600; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.chart-box { position: relative; width: 100%; height: 360px; }
.chart-box canvas { width: 100%; height: 100%; display: block; }
.tooltip {
  position: absolute;
  pointer-events: none;
  display: none;
  background: #1a1a1a;
  color: #f4f4f4;
  font-size: 0.78rem;
  padding: 0.4rem 0.55rem;
  border-radius: 6px;
  max-width: 16rem;
  z-index: 3;
}
.warn {
  background: var(--warn-bg);
  color: var(--warn);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  margin: 0.4rem 0;
}
.back { margin-bottom: 0.6rem; }
.back a { color: var(--muted); }
footer { color: var(--muted); font-size: 0.8rem; margin-top: 1.2rem; }
@media (max-width: 700px) {
  .chart-box { height: 280px; }
  th, td { font-size: 0.8rem; }
}