:root {
  --bg: #0e1117;
  --panel: #161b22;
  --border: #2a313c;
  --text: #e6edf3;
  --muted: #8b949e;
  --leading: #16c784;
  --improving: #4a9eff;
  --weakening: #f0a83a;
  --lagging: #ea3943;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
header, #toolbar, footer { padding: 12px 20px; }
.title-row { display: flex; align-items: baseline; gap: 14px; }
h1 { font-size: 20px; margin: 0; }
h2 { font-size: 15px; margin: 0 0 8px; }
.muted { color: var(--muted); font-size: 12px; }
header p { margin: 6px 0 0; }

#toolbar {
  display: flex; align-items: center; gap: 12px;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
  background: var(--panel);
}
#view-label { font-weight: 600; }
button {
  background: #21262d; color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 5px 12px; cursor: pointer;
}
button:hover { background: #2d333b; }

main { display: flex; gap: 16px; padding: 16px 20px; align-items: stretch; }
#chart { flex: 1 1 auto; height: 70vh; min-height: 460px; background: var(--panel);
  border: 1px solid var(--border); border-radius: 10px; }
#leaderboard { flex: 0 0 320px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 10px; padding: 12px; overflow: auto; max-height: 70vh; }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: right; padding: 5px 6px; border-bottom: 1px solid var(--border); }
th:nth-child(2), td:nth-child(2) { text-align: left; }
th:first-child, td:first-child { text-align: right; color: var(--muted); width: 22px; }
tbody tr { cursor: pointer; }
tbody tr:hover { background: #1d232c; }
.pos { color: var(--leading); }
.neg { color: var(--lagging); }
.dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; }
.q-leading { background: var(--leading); }
.q-improving { background: var(--improving); }
.q-weakening { background: var(--weakening); }
.q-lagging { background: var(--lagging); }

@media (max-width: 820px) {
  main { flex-direction: column; }
  #leaderboard { flex-basis: auto; max-height: none; }
}