:root {
  --bg: #f6f6f4;
  --card: #ffffff;
  --ink: #1d1d1b;
  --muted: #6d6d68;
  --line: #e4e4de;
  --red: #b71c1c;
  --green: #6aa62c;
  --shadow: 0 1px 2px rgba(0, 0, 0, .06);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141413;
    --card: #1e1e1c;
    --ink: #eeeeea;
    --muted: #9c9c95;
    --line: #2f2f2c;
    --red: #e0473f;
    --green: #86c34a;
    --shadow: none;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
header, main, footer { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
header { padding-top: 40px; text-align: center; }
.logo { width: min(420px, 80vw); height: auto; }
.tag { color: var(--muted); margin: 10px 0 28px; letter-spacing: .02em; }
.dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--green); margin-left: 6px; vertical-align: middle;
}
.dot.stale { background: var(--muted); }
.dot.pulse { animation: pulse 1s ease-out; }
@keyframes pulse { from { box-shadow: 0 0 0 0 var(--green); } to { box-shadow: 0 0 0 8px transparent; } }

.hero {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 12px;
}
.big, .card {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow);
}
.big { padding: 18px 16px; display: flex; flex-direction: column; }
.big .label { color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; }
.big .num { font-size: 34px; font-weight: 700; font-variant-numeric: tabular-nums; margin: 4px 0 2px; }
.big .sub { color: var(--muted); font-size: 13px; }
.big:first-child .num { color: var(--red); }

.card { padding: 16px 18px; }
.card h2 { font-size: 14px; margin: 0 0 10px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.wide { margin-bottom: 12px; }
#chart { width: 100%; height: 140px; display: block; }
#chart .down { fill: none; stroke: var(--red); stroke-width: 2; vector-effect: non-scaling-stroke; }
#chart .up { fill: none; stroke: var(--green); stroke-width: 2; vector-effect: non-scaling-stroke; }
#chart .area { fill: var(--red); opacity: .08; }
#chart .grid { stroke: var(--line); stroke-width: 1; vector-effect: non-scaling-stroke; }
.legend { margin: 8px 0 0; font-size: 14px; color: var(--muted); }
.k { display: inline-block; width: 12px; height: 3px; border-radius: 2px; vertical-align: middle; margin: 0 4px 0 10px; }
.k.down { background: var(--red); margin-left: 0; }
.k.up { background: var(--green); }

.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
dl { margin: 0; display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; }
dt { color: var(--muted); font-size: 14px; }
dd { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; text-align: right; }
.good { color: var(--green); }

footer { text-align: center; padding: 28px 16px 40px; font-size: 14px; }
footer p { margin: 4px 0; }
.muted { color: var(--muted); }

@media (max-width: 820px) {
  .hero { grid-template-columns: repeat(2, 1fr); }
  .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .hero, .grid { grid-template-columns: 1fr; }
  .big .num { font-size: 30px; }
}