:root {
  --bg: #fafaf9; --fg: #1c1917; --muted: #57534e; --line: #e7e5e4; --card: #fff;
  --accent: #15803d; --up: #16a34a; --late: #d97706; --down: #dc2626;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0c0a09; --fg: #f5f5f4; --muted: #a8a29e; --line: #292524; --card: #1c1917; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
header { display: flex; align-items: center; gap: 16px; padding: 12px 20px; border-bottom: 1px solid var(--line); }
header .brand { font-weight: 700; margin-right: auto; }
header form { margin: 0; }
main { max-width: 960px; margin: 0 auto; padding: 24px 20px; }
main.narrow, .narrow { max-width: 420px; }
h1 { font-size: 22px; margin: 0 0 16px; }
.muted { color: var(--muted); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 16px 20px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.stats .n { font-size: 28px; font-weight: 700; }
label { display: block; margin: 12px 0; }
input { display: block; width: 100%; margin-top: 4px; padding: 8px 10px; font: inherit; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--fg); }
button { font: inherit; padding: 8px 14px; border-radius: 6px; border: 1px solid var(--line); background: var(--card); color: var(--fg); cursor: pointer; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.link { border: none; background: none; padding: 0; color: var(--muted); text-decoration: underline; }
header a { color: inherit; text-decoration: none; }
header nav { margin-right: auto; }
header .brand { margin-right: 0; }
a { color: var(--accent); }
h2 { font-size: 17px; margin: 28px 0 10px; }
.small { font-size: 13px; }
.nowrap { white-space: nowrap; }
.bad { color: var(--down); }
.card + .card, .stats + .card { margin-top: 12px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; border: 1px solid var(--line); color: var(--muted); }
.badge.up { color: var(--up); border-color: var(--up); }
.badge.late { color: var(--late); border-color: var(--late); }
.badge.down { color: var(--down); border-color: var(--down); }
.badge.snoozed { font-weight: 400; }
.tag { color: var(--muted); font-size: 13px; }
.filters { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-bottom: 16px; }
.chip { padding: 3px 10px; border: 1px solid var(--line); border-radius: 999px; color: var(--fg); text-decoration: none; font-size: 13px; }
.chip.active { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.filters .sep { width: 1px; height: 18px; background: var(--line); margin: 0 4px; }
.filters .clear { font-size: 13px; margin-left: 6px; }
.spark polyline { fill: none; stroke: var(--accent); stroke-width: 1.5; }
.spark.large { width: 100%; height: 60px; margin-top: 8px; }
@media (max-width: 640px) { table.devices th:nth-child(n+5), table.devices td:nth-child(n+5) { display: none; } }
header nav a { margin-right: 14px; }
.titlebar { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.titlebar h1 { margin: 0 0 16px; }
a.button { display: inline-block; padding: 8px 14px; border-radius: 6px; text-decoration: none; margin-bottom: 16px; }
a.button.primary { background: var(--accent); color: #fff; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin: 8px 0 20px; }
form.inline { display: inline-flex; gap: 6px; align-items: center; margin: 0; }
form.row { display: flex; gap: 14px; align-items: center; }
select { font: inherit; padding: 6px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--fg); }
label select { display: block; margin-top: 4px; }
button.danger { background: var(--down); border-color: var(--down); color: #fff; }
.flash { background: color-mix(in srgb, var(--up) 12%, transparent); border: 1px solid var(--up); border-radius: 8px; padding: 8px 12px; }
.error { background: color-mix(in srgb, var(--down) 12%, transparent); border: 1px solid var(--down); border-radius: 8px; padding: 8px 12px; }
.warn { background: color-mix(in srgb, var(--late) 12%, transparent); border: 1px solid var(--late); border-radius: 8px; padding: 8px 12px; }
code.key { font-size: 20px; letter-spacing: .05em; user-select: all; }
pre { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow-x: auto; font-size: 13px; }