:root {
  --bg: #0e1116;
  --surface: #161b22;
  --border: #232a34;
  --text: #e6edf3;
  --text-dim: #7d8590;
  --accent: #4ea1ff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

body {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}

header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.2px;
}

.status {
  margin: 4px 0 0;
  color: var(--text-dim);
  font-size: 12px;
}

.mode-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px;
}

.mode-controls a {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-dim);
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.1s, color 0.1s;
}

.mode-controls a:hover {
  color: var(--text);
}

.mode-controls a.active {
  background: var(--surface);
  color: var(--text);
}

.mode-controls button {
  margin-left: 8px;
  padding: 6px 12px;
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
}

.mode-controls button:hover {
  background: var(--surface);
  border-color: var(--accent);
}

.selection-notice {
  margin: 0 0 16px;
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.5;
}

.selection-notice strong {
  color: var(--text);
  font-weight: 600;
}

main {
  padding: 16px 24px;
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 16px;
  min-height: 0;
}

.chart-container {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 480px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}

.tooltip {
  position: absolute;
  pointer-events: none;
  z-index: 10;
  padding: 6px 10px;
  background: rgba(22, 27, 34, 0.95);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 12px;
  color: var(--text);
  white-space: nowrap;
  transform: translate(12px, 12px);
}

.tooltip .swatch {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  margin-right: 6px;
  vertical-align: middle;
}

.analysis {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  padding: 16px 20px;
}

.analysis h2 {
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}

.stat {
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
}

.stat-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  margin-top: 4px;
  font-size: 18px;
  font-weight: 600;
}

.stat-value.up { color: #3fb950; }
.stat-value.down { color: #f85149; }

.stat-sub {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 2px;
}

.leaderboards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 16px;
}

.leaderboard {
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  overflow: hidden;
}

.leaderboard h3 {
  margin: 0;
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
}

.leaderboard h3.up { color: #3fb950; }
.leaderboard h3.down { color: #f85149; }

.leaderboard table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.leaderboard td {
  padding: 8px 14px;
  border-top: 1px solid var(--border);
}

.leaderboard tr:first-child td {
  border-top: none;
}

.leaderboard td.rank {
  width: 28px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

.leaderboard td.swatch-cell {
  width: 12px;
  padding-right: 0;
}

.leaderboard td.swatch-cell .swatch {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 2px;
}

.leaderboard td.symbol {
  font-weight: 600;
  width: 64px;
}

.leaderboard td.name {
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 0;
}

.leaderboard td.value {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.leaderboard td.value.up { color: #3fb950; }
.leaderboard td.value.down { color: #f85149; }