:root {
  --bg: #0d1117;
  --card: #161b22;
  --card-border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --btc: #f7931a;
  --teal: #2dd4bf;
  --purple: #a78bfa;
  --green: #3fb950;
  --yellow: #d29922;
  --red: #f85149;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  line-height: 1.5;
  min-height: 100vh;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 18px 24px;
  border-bottom: 1px solid var(--card-border);
  background: rgba(13, 17, 23, 0.9);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(6px);
}

.brand { display: flex; align-items: center; gap: 14px; }
.logo {
  width: 42px; height: 42px;
  border-radius: 10px;
  background: var(--btc);
  color: #0d1117;
  font-size: 24px;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
h1 { font-size: 19px; font-weight: 700; }
.sub { font-size: 12.5px; color: var(--muted); margin-top: 2px; }

.status { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.muted { color: var(--muted); font-size: 12.5px; }
.badge {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: var(--card);
}
.badge-ok    { color: var(--green); border-color: rgba(63,185,80,.4); }
.badge-warn  { color: var(--yellow); border-color: rgba(210,153,34,.4); }
.badge-gray  { color: var(--muted); }

main { max-width: 1240px; margin: 0 auto; padding: 22px 24px 40px; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 14px 16px;
}
.card .label { font-size: 12.5px; color: var(--muted); }
.card .value { font-size: 26px; font-weight: 700; margin-top: 4px; font-variant-numeric: tabular-nums; }
.card .value small { font-size: 13px; color: var(--muted); font-weight: 500; }
.card .subline { font-size: 12px; color: var(--muted); margin-top: 4px; }
.card.accent .value { color: var(--btc); }
.card.teal .value { color: var(--teal); }
.card.purple .value { color: var(--purple); }
.card.green .value { color: var(--green); }

.charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}
.chart-card, .table-card, .notes {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 16px 18px;
}
.chart-card h2, .table-card h2, .notes h3 {
  font-size: 14.5px;
  font-weight: 600;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hint { font-size: 11.5px; color: var(--muted); font-weight: 400; }
canvas { width: 100%; height: 170px; display: block; }

.trend-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.range-btns { display: flex; gap: 6px; }
.range-btns button {
  background: var(--card);
  color: var(--muted);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  padding: 4px 12px;
  font-size: 12px;
  cursor: pointer;
}
.range-btns button:hover { color: var(--text); }
.range-btns button.active {
  background: var(--btc);
  color: #0d1117;
  border-color: var(--btc);
  font-weight: 600;
}
.legend {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 4px 0 10px;
  font-size: 12px;
  color: var(--muted);
}
.legend .dot {
  display: inline-block;
  width: 9px; height: 9px;
  border-radius: 2px;
  margin-right: 5px;
  vertical-align: -1px;
}

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 8px 10px; text-align: right; border-bottom: 1px solid var(--card-border); white-space: nowrap; }
th { color: var(--muted); font-weight: 500; font-size: 12px; }
th:first-child, td:first-child { text-align: left; }
td.rune { color: var(--btc); font-weight: 600; }
td.p2tr { color: var(--teal); }
tbody tr:hover { background: rgba(255,255,255,.02); }

.notes { margin-top: 18px; }
.notes ul { padding-left: 18px; }
.notes li { font-size: 12.5px; color: var(--muted); margin: 5px 0; }
.notes code { background: rgba(255,255,255,.06); padding: 1px 5px; border-radius: 4px; font-size: 11.5px; }

.empty { color: var(--muted); font-size: 13px; padding: 26px 0; text-align: center; }

@media (max-width: 640px) {
  .value { font-size: 22px !important; }
}