:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --wash: rgba(11, 11, 11, 0.05);
  --band: rgba(11, 11, 11, 0.035);
  --band-holiday: rgba(11, 11, 11, 0.09);
  --critical: #d03b3b;
  --series: #2a78d6;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --ink: #f0efec;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --wash: rgba(255, 255, 255, 0.06);
    --band: rgba(255, 255, 255, 0.04);
    --band-holiday: rgba(255, 255, 255, 0.10);
    --critical: #d03b3b;
    --series: #3987e5;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}

main {
  max-width: 1160px;
  margin: 0 auto;
  padding: 28px 16px 56px;
}

body.loading main { opacity: 0.6; transition: opacity 0.2s; }

h1 { font-size: 28px; font-weight: 650; margin: 0; }
h2 { font-size: 16px; font-weight: 600; margin: 0; }
h3 { font-size: 14px; font-weight: 600; margin: 20px 0 8px; color: var(--ink-2); }

.subtitle { margin: 2px 0 0; color: var(--ink-2); }
.status { margin: 8px 0 0; color: var(--muted); font-size: 13px; }

.alert {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--critical);
  border-radius: 8px;
  background: var(--surface);
  font-size: 13px;
}
.alert ul { margin: 4px 0 0; padding-left: 18px; }

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 16px;
}

.segmented {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}
.segmented button {
  font: inherit;
  font-size: 13px;
  color: var(--ink-2);
  background: none;
  border: 0;
  border-radius: 7px;
  padding: 6px 12px;
  cursor: pointer;
}
.segmented button:hover { background: var(--wash); }
.segmented button[aria-pressed="true"] { background: var(--ink); color: var(--surface); font-weight: 600; }
.segmented button:focus-visible { outline: 2px solid var(--series); outline-offset: 1px; }

.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.tile, .card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.tile { padding: 14px 16px; }
.tile .label { font-size: 13px; color: var(--ink-2); }
.tile .value { font-size: 30px; font-weight: 600; margin: 4px 0 2px; }
.tile .detail, .tile .delta { font-size: 12.5px; color: var(--muted); }
.tile .delta { color: var(--ink-2); }

.charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 480px), 1fr));
  gap: 12px;
}

.card { padding: 16px; margin: 0; }
.card.wide { grid-column: 1 / -1; }
details.card summary + .table-wrap { margin-top: 12px; }
figcaption p, .note { margin: 2px 0 0; font-size: 13px; color: var(--ink-2); }

.plot { position: relative; height: 240px; margin-top: 12px; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 12px; font-size: 12.5px; color: var(--ink-2); }
.legend + .plot { margin-top: 6px; }
.legend-item { display: inline-flex; align-items: center; gap: 6px; }
.legend-key { display: inline-block; width: 16px; height: 2px; border-radius: 1px; }
.empty { font-size: 13px; color: var(--muted); margin: 8px 0 0; }

.legend-note { font-size: 12.5px; color: var(--muted); margin: 8px 0 12px; }

#full-tonight { margin-top: 12px; }
.full-list { margin-top: 12px; }
.full-list summary { font-weight: normal; font-size: 13px; color: var(--ink-2); }
.full-list ul { margin: 8px 0 0; padding-left: 18px; font-size: 13.5px; columns: 3 220px; }
.full-list li { break-inside: avoid; }

details.card { margin-top: 12px; }
summary { cursor: pointer; font-weight: 600; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; font-size: 13px; width: 100%; }
th, td { padding: 6px 10px; text-align: right; border-bottom: 1px solid var(--grid); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { color: var(--ink-2); font-weight: 600; }
td { font-variant-numeric: tabular-nums; }
tr.weekend td { background: var(--band); }
tr.holiday td { background: var(--band-holiday); }

.login { max-width: 380px; padding-top: 18vh; }
.login form { display: grid; gap: 10px; margin-top: 24px; padding: 20px; }
.login label { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.login input {
  font: inherit;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--page);
  color: var(--ink);
}
.login input:focus-visible { outline: 2px solid var(--series); outline-offset: 1px; }
.login button {
  font: inherit;
  font-weight: 600;
  padding: 9px 12px;
  border: 0;
  border-radius: 8px;
  background: var(--ink);
  color: var(--surface);
  cursor: pointer;
}
.login-error { margin: 0; font-size: 13px; color: var(--critical); }