:root { --bg:#fff; --fg:#1a1a1a; --muted:#666; --card:#f6f6f7; --line:#e2e2e5; --err:#b3261e; }
@media (prefers-color-scheme: dark) {
  :root { --bg:#141416; --fg:#eee; --muted:#9a9aa0; --card:#1d1d20; --line:#2c2c30; --err:#f2857d; }
}
* { box-sizing: border-box; }
body { margin:0; font:15px/1.5 system-ui, sans-serif; background:var(--bg); color:var(--fg); }
header { display:flex; justify-content:space-between; align-items:center; padding:16px; border-bottom:1px solid var(--line); }
h1 { margin:0; font-size:20px; }
h2 { margin:0 0 12px; font-size:16px; }
button { padding:6px 12px; border:1px solid var(--line); background:var(--card); color:var(--fg); border-radius:6px; cursor:pointer; }
main { display:grid; gap:16px; padding:16px; grid-template-columns:repeat(auto-fit, minmax(300px, 1fr)); }
section { background:var(--card); border:1px solid var(--line); border-radius:10px; padding:16px; }
.stats { display:flex; gap:20px; flex-wrap:wrap; margin-bottom:12px; }
.stat b { display:block; font-size:24px; }
.stat span, .muted { color:var(--muted); font-size:13px; }
.error { color:var(--err); }
select { padding:6px 10px; border:1px solid var(--line); background:var(--card); color:var(--fg); border-radius:6px; }
.wide { grid-column:1 / -1; }
.banner { background:#2a83dc; color:#fff; text-align:center; font-weight:600; padding:8px; border-radius:6px; margin:16px 0 12px; }
.banner:first-child { margin-top:0; }
.tiles { display:grid; gap:12px; grid-template-columns:repeat(auto-fill, minmax(190px, 1fr)); }
.tile { background:var(--bg); border:1px solid var(--line); border-radius:8px; padding:12px 14px; }
.tile h4 { margin:0 0 8px; font-size:14px; }
.big { font-size:34px; font-weight:500; text-align:center; padding:8px 0; }
.small { font-size:12px; text-align:center; }
.delta { text-align:center; margin-top:4px; }
.pill { font-size:12px; padding:2px 8px; border-radius:10px; }
.pill.up { background:#e3f6ea; color:#1a7f3c; }
.pill.down { background:#fde8e6; color:#b3261e; }
ul { margin:0; padding-left:18px; }