:root {
  color-scheme: light;
  --page: #f9f9f7; --surface: #fcfcfb; --surface-2: #f3f2ee;
  --ink: #0b0b0b; --ink-2: #52514e; --muted: #898781;
  --grid: #e1e0d9; --axis: #c3c2b7; --ring: rgba(11,11,11,0.10);
  --accent: #2a78d6; --good: #006300; --bad: #d03b3b;
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100;
  --s5: #e87ba4; --s6: #008300; --s7: #6250d6; --s8: #e34948; --other: #b9b7ae;
  --radius: 10px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --page: #0d0d0d; --surface: #1a1a19; --surface-2: #232321;
    --ink: #f0efec; --ink-2: #c3c2b7; --muted: #898781;
    --grid: #2c2c2a; --axis: #383835; --ring: rgba(255,255,255,0.10);
    --accent: #3987e5; --good: #0ca30c; --bad: #e66767;
    --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
    --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767; --other: #5a5955;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #0d0d0d; --surface: #1a1a19; --surface-2: #232321;
  --ink: #f0efec; --ink-2: #c3c2b7; --muted: #898781;
  --grid: #2c2c2a; --axis: #383835; --ring: rgba(255,255,255,0.10);
  --accent: #3987e5; --good: #0ca30c; --bad: #e66767;
  --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
  --s5: #d55181; --s6: #008300; --s7: #9085e9; --s8: #e66767; --other: #5a5955;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--page); color: var(--ink); font-size: 14px; line-height: 1.45; }
a { color: var(--accent); }
.muted { color: var(--ink-2); }
.small { font-size: 12px; }
.num { font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }

/* top bar */
header.top { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; padding: 12px 24px;
  background: var(--surface); border-bottom: 1px solid var(--ring); position: sticky; top: 0; z-index: 5; }
header.top h1 { font-size: 16px; margin: 0; font-weight: 650; }
header.top h1 span { color: var(--ink-2); font-weight: 450; }
nav.tabs { display: flex; gap: 4px; }
nav.tabs button { border: 0; background: none; color: var(--ink-2); padding: 7px 12px; border-radius: 8px;
  font: inherit; cursor: pointer; }
nav.tabs button[aria-selected="true"] { background: var(--surface-2); color: var(--ink); font-weight: 600; }
.spacer { flex: 1; }
select, input[type="date"], input[type="password"], button.ghost, button.primary {
  font: inherit; color: var(--ink); background: var(--surface); border: 1px solid var(--ring);
  border-radius: 8px; padding: 6px 10px; }
button.ghost { cursor: pointer; }
button.ghost:hover { background: var(--surface-2); }
button.primary { background: var(--accent); color: #fff; border-color: transparent; cursor: pointer; }

main { padding: 20px 24px 48px; max-width: 1400px; margin: 0 auto; }
section[hidden] { display: none; }

/* filter row */
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 16px; }
.seg { display: inline-flex; border: 1px solid var(--ring); border-radius: 8px; overflow: hidden; background: var(--surface); }
.seg button { border: 0; background: none; color: var(--ink-2); font: inherit; padding: 6px 10px; cursor: pointer; }
.seg button + button { border-left: 1px solid var(--ring); }
.seg button[aria-pressed="true"] { background: var(--surface-2); color: var(--ink); font-weight: 600; }
.range { display: inline-flex; gap: 6px; align-items: center; }

/* model picker */
.picker { position: relative; }
.picker-panel { position: absolute; top: calc(100% + 6px); left: 0; z-index: 10; width: 340px; max-height: 360px;
  overflow: auto; background: var(--surface); border: 1px solid var(--ring); border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12); padding: 6px; }
.picker-panel label { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 6px; cursor: pointer; }
.picker-panel label:hover { background: var(--surface-2); }
.picker-actions { display: flex; gap: 8px; padding: 6px 8px; border-bottom: 1px solid var(--ring); margin-bottom: 4px; }
.picker-actions button { border: 0; background: none; color: var(--accent); cursor: pointer; font: inherit; padding: 0; }
.swatch { width: 10px; height: 10px; border-radius: 3px; flex: none; display: inline-block; }

/* tiles */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 16px; }
.tile { background: var(--surface); border: 1px solid var(--ring); border-radius: var(--radius); padding: 14px 16px; }
.tile .label { color: var(--ink-2); font-size: 12px; }
.tile .value { font-size: 26px; font-weight: 650; margin-top: 2px; letter-spacing: -0.01em; }
.tile .delta { font-size: 12px; margin-top: 2px; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.delta .up::before { content: "▲ "; } .delta .down::before { content: "▼ "; }
.delta .up { color: var(--good); } .delta .down { color: var(--bad); }

/* cards */
.grid2 { display: grid; grid-template-columns: 2fr 1fr; gap: 12px; margin-bottom: 12px; }
@media (max-width: 960px) { .grid2 { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--ring); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 12px; min-width: 0; }
.card h2 { font-size: 14px; margin: 0 0 2px; font-weight: 650; }
.card .sub { color: var(--ink-2); font-size: 12px; margin: 0 0 8px; }
.card-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.card-head .spacer { flex: 1; }
.chart { width: 100%; height: 340px; }
.chart.short { height: 260px; }

/* legend */
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; margin: 4px 0 6px; color: var(--ink-2); font-size: 12px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }

/* tables */
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 13px; }
th, td { padding: 7px 10px; border-bottom: 1px solid var(--grid); text-align: left; vertical-align: top; }
th { color: var(--ink-2); font-weight: 550; font-size: 12px; white-space: nowrap; cursor: default; }
th.sortable { cursor: pointer; } th.sortable:hover { color: var(--ink); }
tbody tr:hover { background: var(--surface-2); }
td .model { display: inline-flex; align-items: center; gap: 8px; }
td code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; color: var(--ink-2); }
.pill { display: inline-block; font-size: 11px; padding: 1px 8px; border-radius: 999px; border: 1px solid var(--ring); white-space: nowrap; }
.pill.live::before { content: "● "; color: #0ca30c; }
.pill.paused::before, .pill.verifying::before { content: "◐ "; color: #fab219; }
.pill.check_failed::before, .pill.not_serving::before { content: "▲ "; color: #d03b3b; }

/* report */
.report-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.report-head h2 { font-size: 20px; margin: 0; }
.headline { font-size: 15px; margin: 0 0 16px; max-width: 90ch; }
ul.highlights { margin: 0; padding-left: 18px; } ul.highlights li { margin: 3px 0; }
.note { color: var(--ink-2); font-size: 12px; margin-top: 8px; }
.error-box { background: var(--surface); border: 1px solid var(--bad); color: var(--ink); padding: 10px 14px; border-radius: var(--radius); margin-bottom: 12px; }

/* login */
.login-body { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.login-card { background: var(--surface); border: 1px solid var(--ring); border-radius: 14px; padding: 28px; width: min(380px, 100%); }
.login-card h1 { font-size: 20px; margin: 0 0 4px; }
.login-card form { display: grid; gap: 8px; margin-top: 16px; }
.login-card input[type="password"] { padding: 9px 12px; }
.login-card button { font: inherit; background: var(--accent); color: #fff; border: 0; border-radius: 8px; padding: 9px; cursor: pointer; margin-top: 4px; }
.login-card .error { color: var(--bad); margin: 4px 0 0; }

@media (max-width: 640px) {
  header.top, main { padding-left: 16px; padding-right: 16px; }
  .tile .value { font-size: 22px; }
}
@media print {
  header.top, .filters, .no-print, nav.tabs { display: none !important; }
  body { background: #fff; } main { padding: 0; max-width: none; }
  .card, .tile { break-inside: avoid; border-color: #ddd; }
}