:root {
  --bg: #0f1419;
  --card: #1a2332;
  --border: #2a3548;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --gray: #94a3b8;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Hiragino Sans", "ヒラギノ角ゴシック", Meiryo, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
header, footer, main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
}
header h1 { margin: 0 0 0.3rem 0; font-size: 1.6rem; }
.meta { color: var(--muted); margin: 0; font-size: 0.9rem; }
.meta a { color: var(--accent); }
h2 { font-size: 1.2rem; border-bottom: 1px solid var(--border); padding-bottom: 0.4rem; margin-top: 2rem; }
.group-desc { color: var(--muted); font-size: 0.85rem; margin-top: -0.5rem; }
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.8rem;
  margin: 1rem 0;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}
.card .ticker {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.card .symbol { font-size: 1.3rem; font-weight: 700; }
.card .price { font-size: 1.1rem; color: var(--muted); }
.badge {
  display: inline-block;
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin: 0.5rem 0;
}
.badge.green  { background: rgba(34,197,94,.15);  color: var(--green); border: 1px solid var(--green); }
.badge.red    { background: rgba(239,68,68,.15);  color: var(--red);   border: 1px solid var(--red); }
.badge.amber  { background: rgba(245,158,11,.15); color: var(--amber); border: 1px solid var(--amber); }
.badge.gray   { background: rgba(148,163,184,.1); color: var(--gray);  border: 1px solid var(--gray); }
.metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.3rem 0.8rem;
  font-size: 0.85rem;
  margin-top: 0.6rem;
}
.metrics .label { color: var(--muted); }
.metrics .value { text-align: right; font-variant-numeric: tabular-nums; }
.value.pos { color: var(--green); }
.value.neg { color: var(--red); }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin: 1rem 0;
}
th, td { padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); text-align: right; }
th:first-child, td:first-child { text-align: left; }
th { color: var(--muted); font-weight: 600; }
tr:hover { background: rgba(56,189,248,.04); }
.plot { height: 320px; margin: 0.5rem 0 1.5rem 0; background: var(--card); border: 1px solid var(--border); border-radius: 8px; }
footer { color: var(--muted); font-size: 0.8rem; text-align: center; border-top: 1px solid var(--border); margin-top: 3rem; }
.archive-list { list-style: none; padding: 0; }
.archive-list li { padding: 0.5rem 0; border-bottom: 1px solid var(--border); }
.archive-list a { color: var(--accent); text-decoration: none; }
.archive-list a:hover { text-decoration: underline; }