:root {
  --bg: #fafaf9; --surface: #ffffff; --text: #1c1917; --muted: #78716c; --border: #e7e5e4;
  --accent: #2563eb; --accent-soft: #bfdbfe; --bar: #dbeafe; --danger: #dc2626; --ok: #16a34a;
  --radius: 8px; --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0c0a09; --surface: #1c1917; --text: #f5f5f4; --muted: #a8a29e; --border: #292524;
    --accent: #60a5fa; --accent-soft: #1e3a8a; --bar: #172554; --danger: #f87171; --ok: #4ade80;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 var(--font); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
code, pre { font-family: var(--mono); font-size: 13px; }
pre { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; overflow-x: auto; white-space: pre-wrap; word-break: break-all; }
h1 { font-size: 22px; margin: 0; }
h2 { font-size: 15px; margin: 0 0 8px; }
.muted { color: var(--muted); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.small { font-size: 13px; }

header.top { display: flex; align-items: center; gap: 16px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--surface); }
header.top .brand { font-weight: 700; color: var(--text); }
header.top nav { margin-left: auto; display: flex; gap: 16px; align-items: center; }
main { max-width: 1100px; margin: 0 auto; padding: 16px; }
.site-footer { max-width: 1100px; margin: 0 auto; padding: 24px 16px; color: var(--muted); font-size: 12px; }
.site-footer a { color: var(--muted); text-decoration: underline; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stack > * + * { margin-top: 16px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.spread { justify-content: space-between; }

button, .button { font: inherit; padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; }
button.primary, .button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { color: var(--danger); border-color: var(--danger); }
input, select { font: inherit; padding: 6px 10px; border-radius: 6px; border: 1px solid var(--border); background: var(--bg); color: var(--text); max-width: 100%; }
label { display: block; font-weight: 600; margin-bottom: 4px; }
label + .hint { margin-top: -2px; }
.field + .field { margin-top: 12px; }
/* Side by side in a row, fields line up at the top instead of stacking. */
.row > .field + .field { margin-top: 0; }
.row:has(> .field) { align-items: flex-start; }
.hint { color: var(--muted); font-size: 13px; }
.error { color: var(--danger); }
.ok { color: var(--ok); }
form.narrow { max-width: 360px; margin: 48px auto; }

/* range bar */
.ranges { display: flex; gap: 4px; flex-wrap: wrap; }
.ranges a { padding: 4px 10px; border-radius: 6px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font-size: 13px; }
.ranges a[aria-current] { background: var(--accent); border-color: var(--accent); color: #fff; }
.period { display: flex; gap: 8px; align-items: center; }
.period a { padding: 2px 8px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface); }
.custom { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.custom input { padding: 3px 6px; font-size: 13px; }

/* filter chips */
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 2px 4px 2px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--text); font-size: 13px; }
.chip a { color: var(--text); padding: 0 6px; border-radius: 999px; }

/* stat cards */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.stat .label { color: var(--muted); font-size: 13px; }
.stat .value { font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; }
.delta { font-size: 13px; margin-left: 6px; }
.delta.up { color: var(--ok); }
.delta.down { color: var(--danger); }

.chart { min-height: 240px; }
.chart .uplot { width: 100%; }
.legend { display: flex; gap: 16px; font-size: 13px; color: var(--muted); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 6px; vertical-align: -1px; }

/* top-N tables */
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
table.top { width: 100%; border-collapse: collapse; font-size: 14px; }
table.top th { text-align: left; font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; padding: 4px 6px; }
table.top th.num, table.top td.num { text-align: right; font-variant-numeric: tabular-nums; width: 1%; white-space: nowrap; }
table.top td { padding: 4px 6px; position: relative; }
table.top td.name { max-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
table.top td.name .bar { position: absolute; inset: 2px auto 2px 0; background: var(--bar); border-radius: 4px; z-index: 0; }
table.top td.name > span, table.top td.name > a { position: relative; z-index: 1; }
table.top td.name .sub { color: var(--muted); margin-left: 6px; font-size: 13px; }
table.top tr:hover td.name .bar { background: var(--accent-soft); }
.empty { color: var(--muted); padding: 8px 6px; font-size: 14px; }
.more { font-size: 13px; margin-top: 6px; }

table.list { width: 100%; border-collapse: collapse; }
table.list td, table.list th { padding: 8px 6px; border-bottom: 1px solid var(--border); text-align: left; }
.htmx-request { opacity: .6; transition: opacity .2s; }

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
  .stat .value { font-size: 20px; }
  header.top { flex-wrap: wrap; }
}