:root {
  --bg: #0f1117;
  --card: #1a1d28;
  --text: #e8eaf2;
  --muted: #8b90a5;
  --accent: #5b8cff;
  --green: #2ecc71;
  --red: #ff6b6b;
  --border: #2a2e3d;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  background: var(--bg);
  color: var(--text);
}
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 28px; border-bottom: 1px solid var(--border);
}
h1 { margin: 0; font-size: 22px; }
.sub { margin: 4px 0 0; color: var(--muted); font-size: 13px; }
.badge {
  font-size: 12px; padding: 5px 12px; border-radius: 999px;
  background: #2a2e3d; color: var(--muted); border: 1px solid var(--border);
}
.badge.on { background: rgba(46,204,113,.15); color: var(--green); border-color: var(--green); }

.kpi-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px; padding: 20px 28px;
}
.kpi {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 18px 20px;
}
.kpi .label { color: var(--muted); font-size: 13px; }
.kpi .value { font-size: 26px; font-weight: 700; margin-top: 6px; }
.kpi .delta { font-size: 13px; margin-top: 4px; }
.delta.up { color: var(--green); }
.delta.down { color: var(--red); }

.controls { padding: 0 28px 8px; }
.controls strong { font-size: 13px; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chip {
  cursor: pointer; user-select: none;
  font-size: 13px; padding: 6px 14px; border-radius: 999px;
  background: var(--card); border: 1px solid var(--border); color: var(--muted);
  transition: .15s;
}
.chip.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: 18px 28px 40px;
}
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 18px 20px; min-height: 320px;
}
.card.wide { grid-column: 1 / -1; }
.card h2 { font-size: 15px; margin: 0 0 14px; }
.unit { color: var(--muted); font-weight: 400; font-size: 12px; }
.hint { color: var(--muted); font-size: 12px; margin: 10px 0 0; }
canvas { max-height: 340px; }

footer { padding: 20px 28px 40px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--border); }

@media (max-width: 860px) {
  .grid { grid-template-columns: 1fr; }
}