:root {
  color-scheme: light dark;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series: #2a78d6;
  --series-wash: rgba(42, 120, 214, 0.10);
  --good: #006300;
  --critical: #d03b3b;
  --radius: 12px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --page: #0d0d0d;
    --surface: #1a1a19;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series: #3987e5;
    --series-wash: rgba(57, 135, 229, 0.14);
    --good: #0ca30c;
    --critical: #e06060;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 15px/1.5 var(--font);
}
a { color: inherit; text-underline-offset: 2px; }
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--series);
  outline-offset: 2px;
}

.wordmark { font-weight: 650; font-size: 1.05rem; text-decoration: none; letter-spacing: -0.01em; }
.wordmark-jp { margin-left: .4em; font-weight: 400; font-size: .8em; color: var(--ink-2); }

.top {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: .5rem 1.5rem;
  max-width: 1080px; margin: 0 auto; padding: 20px 16px 8px;
}
.top nav { display: flex; flex-wrap: wrap; gap: .25rem 1rem; font-size: .9rem; color: var(--ink-2); }
.top nav a { text-decoration: none; }
.top nav a[aria-current="page"] { color: var(--ink); text-decoration: underline; }

main { max-width: 1080px; margin: 0 auto; padding: 8px 16px 48px; }
h1 { font-size: 1.5rem; font-weight: 650; letter-spacing: -0.015em; margin: 8px 0 4px; }
h2 { font-size: 1rem; font-weight: 600; margin: 32px 0 10px; }
.sub { margin: 0 0 20px; color: var(--ink-2); font-size: .9rem; }
.muted { color: var(--ink-2); }
.small { font-size: .82rem; }
.num { font-variant-numeric: tabular-nums; }

.banner {
  margin: 12px 0 20px; padding: 10px 14px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border); font-size: .9rem;
}
.banner--problem { border-color: var(--critical); }
.banner strong { font-weight: 600; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; min-width: 0;
}
.card h2 { margin: 0; font-size: 1.05rem; }
.card h2 a { text-decoration: none; }
.card .meta { margin: 2px 0 14px; font-size: .82rem; color: var(--ink-2); }

.stat-row { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; }
.stat-label { font-size: .82rem; color: var(--ink-2); }
.stat-value { font-size: 1.9rem; font-weight: 600; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat-delta { font-size: .82rem; color: var(--ink-2); }
.stat-delta--up { color: var(--good); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 16px 0 8px; }
.stats .card { padding: 12px 14px; }

.places { list-style: none; margin: 14px 0 0; padding: 0; font-size: .9rem; }
.places li { display: flex; gap: 10px; padding: 5px 0; border-top: 1px solid var(--grid); }
.places .rank { min-width: 3.2em; font-weight: 600; font-variant-numeric: tabular-nums; }
.places-empty { margin: 14px 0 0; font-size: .82rem; color: var(--ink-2); }
.card-link { display: inline-block; margin-top: 10px; font-size: .85rem; color: var(--ink-2); }

.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th { text-align: left; font-weight: 500; font-size: .78rem; color: var(--ink-2); padding: 10px 12px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
td { padding: 8px 12px; border-top: 1px solid var(--grid); vertical-align: middle; }
tr:first-child td { border-top: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
tr.is-out td { color: var(--ink-2); }
td.chart-name { min-width: 140px; }
@media (max-width: 560px) {
  .col-seen { display: none; }
  th, td { padding-left: 8px; padding-right: 8px; }
  td.chart-name { min-width: 0; }
  .spark { width: 96px; height: auto; }
}

.events { list-style: none; margin: 0; padding: 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.events li { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2px 16px; padding: 9px 14px; border-top: 1px solid var(--grid); font-size: .9rem; }
.events li:first-child { border-top: 0; }
.events time { color: var(--ink-2); font-size: .82rem; white-space: nowrap; }
.events .kind-dropped { color: var(--ink-2); }
.empty { padding: 14px; color: var(--ink-2); font-size: .9rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }

dl.facts { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; padding: 14px 16px; font-size: .9rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
dl.facts dt { color: var(--ink-2); }
dl.facts dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }

.spark, .cols { display: block; overflow: visible; }
.trend { margin: 12px 0 0; }
.trend .cols { width: 100%; height: auto; }
.trend figcaption { display: flex; justify-content: space-between; gap: 8px; margin-top: 4px; font-size: .75rem; color: var(--ink-2); }
.spark-line { fill: none; stroke: var(--series); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.spark-dot { fill: var(--series); }
.spark-end { fill: var(--series); stroke: var(--surface); stroke-width: 2; }
.spark-empty { font-size: .8rem; color: var(--ink-2); }
.col { fill: var(--series); }
.baseline { stroke: var(--axis); stroke-width: 1; }
.hit { fill: transparent; }
.hit:hover { fill: var(--series-wash); }

.login-body { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card { width: 100%; max-width: 24rem; padding: 28px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.login-card .wordmark { display: block; margin: 0 0 18px; font-size: 1.4rem; }
.login-card label { display: block; margin-bottom: 6px; font-size: .85rem; color: var(--ink-2); }
.login-card input { width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--axis); background: var(--page); color: var(--ink); font: inherit; }
.login-card button { margin-top: 14px; width: 100%; padding: 10px 12px; border: 0; border-radius: 8px; background: var(--ink); color: var(--page); font: inherit; font-weight: 600; cursor: pointer; }
.login-notice { margin: 0 0 14px; padding: 8px 12px; border-radius: 8px; border: 1px solid var(--critical); font-size: .88rem; }