:root {
  --bg: var(--tg-theme-bg-color, #101318);
  --panel: var(--tg-theme-secondary-bg-color, #181d24);
  --text: var(--tg-theme-text-color, #f3f5f7);
  --muted: var(--tg-theme-hint-color, #98a2ad);
  --accent: var(--tg-theme-button-color, #4e9cff);
  --accent-text: var(--tg-theme-button-text-color, #ffffff);
  --border: rgba(127, 127, 127, .22);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, Segoe UI, sans-serif;
}
.wrap { max-width: 980px; margin: 0 auto; padding: 18px 14px 40px; }
h1 { margin: 0 0 4px; font-size: 22px; }
h2 { margin: 0 0 12px; font-size: 16px; }
.muted { margin: 0; color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 16px 0; }
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
}
.metric .label { color: var(--muted); font-size: 12px; }
.metric .value { margin-top: 4px; font-size: 18px; font-weight: 650; }
.tabs { display: flex; gap: 8px; margin: 16px 0; }
button {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
}
button.active { background: var(--accent); color: var(--accent-text); border-color: transparent; }
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.periods { display: flex; gap: 6px; }
.chart-card { margin-bottom: 10px; }
canvas { width: 100%; display: block; }
.summary { white-space: pre-line; color: var(--muted); }
.hidden { display: none; }
.error { color: #ff6f6f; }
@media (max-width: 680px) {
  .cards { grid-template-columns: 1fr; }
  .wrap { padding-left: 10px; padding-right: 10px; }
}