:root {
  --page: #f4f4f1;
  --card: #ffffff;
  --ink: #0b0b0b;
  --ink-2: #52524e;
  --hairline: rgba(11, 11, 11, 0.10);
  --track: #e6e5df;
  --accent: #2a6fdb;
  --warning: #fab219;
  --critical: #d03b3b;
  --status-warning-ink: #8a5a00;
  --status-critical-ink: #b42b2b;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --page: #111110;
  --card: #1a1a19;
  --ink: #f5f5f2;
  --ink-2: #a9a9a2;
  --hairline: rgba(255, 255, 255, 0.10);
  --track: #2f2f2c;
  --accent: #6ea4f5;
  --status-warning-ink: #fab219;
  --status-critical-ink: #f08080;
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --page: #111110;
    --card: #1a1a19;
    --ink: #f5f5f2;
    --ink-2: #a9a9a2;
    --hairline: rgba(255, 255, 255, 0.10);
    --track: #2f2f2c;
    --accent: #6ea4f5;
    --status-warning-ink: #fab219;
    --status-critical-ink: #f08080;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; margin: 0; }
[hidden] { display: none !important; }
body {
  background: var(--page);
  color: var(--ink);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Noto Sans CJK SC", "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}
main {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px 16px calc(24px + env(safe-area-inset-bottom));
  display: grid;
  gap: 12px;
}
header { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 44px; }
h1 { font-size: 20px; font-weight: 650; }
button {
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  background: var(--card);
  color: var(--ink);
  font: inherit;
  font-weight: 550;
  cursor: pointer;
}
button:active { opacity: 0.6; }
button:disabled { color: var(--ink-2); cursor: default; }

.notice {
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--hairline);
  background: var(--card);
  color: var(--ink-2);
}
.card {
  padding: 16px;
  border-radius: 16px;
  border: 1px solid var(--hairline);
  background: var(--card);
}
h2 { font-size: 14px; font-weight: 550; color: var(--ink-2); }
.figures { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; margin-top: 4px; }
.hero { font-size: 52px; line-height: 1.1; font-weight: 650; letter-spacing: -0.02em; }
.hero small { margin-left: 4px; font-size: 15px; font-weight: 500; letter-spacing: 0; color: var(--ink-2); }
.status { padding-bottom: 8px; font-size: 13px; font-weight: 550; color: var(--ink-2); white-space: nowrap; }
.status[data-level="warning"] { color: var(--status-warning-ink); }
.status[data-level="critical"] { color: var(--status-critical-ink); }

.meter { height: 8px; margin-top: 10px; border-radius: 4px; background: var(--track); overflow: hidden; }
.fill { height: 100%; width: 0; border-radius: 4px; background: var(--accent); transition: width 0.4s ease; }
.fill[data-level="warning"] { background: var(--warning); }
.fill[data-level="critical"] { background: var(--critical); }

dl { display: grid; gap: 6px; margin-top: 14px; }
dl > div { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
dt { color: var(--ink-2); flex: none; }
dd { margin: 0; text-align: right; font-weight: 550; font-variant-numeric: tabular-nums; }
dd small { display: block; font-size: 13px; font-weight: 400; color: var(--ink-2); }

footer { min-height: 20px; text-align: center; font-size: 13px; color: var(--ink-2); font-variant-numeric: tabular-nums; }

@media (prefers-reduced-motion: reduce) { .fill { transition: none; } }