:root {
  --bg: #f4f5f7;
  --panel: #ffffff;
  --text: #16181d;
  --muted: #6b7280;
  --border: #e3e5e9;
  --grid: #eceef1;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --down: #0ea5a4;
  --up: #8b5cf6;
  --danger: #dc2626;
  --warn: #b45309;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1014;
    --panel: #171a20;
    --text: #e8eaee;
    --muted: #8b93a1;
    --border: #262a33;
    --grid: #22262e;
    --accent: #3b82f6;
    --down: #2dd4bf;
    --up: #a78bfa;
    --danger: #f87171;
    --warn: #fbbf24;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); }
[hidden] { display: none !important; }

.top {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  flex-wrap: wrap;
  max-width: 960px; margin: 0 auto; padding: 20px 16px 8px;
}
.brand { font-size: 22px; font-weight: 700; letter-spacing: -0.02em; color: var(--text); text-decoration: none; }
.meta { color: var(--muted); font-size: 13px; display: flex; gap: 14px; flex-wrap: wrap; align-items: baseline; }
.get-app { font-weight: 600; text-decoration: none; }

main { max-width: 960px; margin: 0 auto; padding: 8px 16px 32px; display: grid; gap: 16px; }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }

body.viewing .settings { display: none; }
.view-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.view-title { font-weight: 600; font-size: 17px; }
.view-details { color: var(--muted); font-size: 13px; margin-top: 2px; }

.settings { display: grid; gap: 14px; }
.tests { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tests legend { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 6px; padding: 0; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-block; padding: 6px 14px; border-radius: 999px; cursor: pointer; user-select: none;
  border: 1px solid var(--border); color: var(--muted);
}
.chip input:checked + span { border-color: var(--accent); color: var(--text); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.chip input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

.options { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.field { display: grid; gap: 4px; align-content: start; }
.field > label { font-size: 12px; color: var(--muted); }
select, input[type="number"] {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 8px; padding: 7px 8px; min-width: 0;
}
.duration { display: flex; align-items: center; gap: 8px; }
.duration input[type="number"] { width: 100%; }
.inline { display: flex; align-items: center; gap: 4px; font-size: 13px; white-space: nowrap; color: var(--text); }
fieldset:disabled, select:disabled, input:disabled { opacity: 0.55; }
.hint { margin: 0; min-height: 18px; font-size: 13px; color: var(--warn); }

.actions { display: flex; gap: 10px; }
button { font: inherit; cursor: pointer; }
.start {
  flex: 1; font-weight: 600; font-size: 16px;
  background: var(--accent); color: var(--accent-text);
  border: 0; border-radius: 10px; padding: 12px;
}
.start.running { background: var(--danger); }
.secondary, .button {
  background: transparent; color: var(--text); text-decoration: none;
  border: 1px solid var(--border); border-radius: 10px; padding: 10px 16px; font-weight: 600;
}
.secondary.small { padding: 5px 12px; font-size: 13px; font-weight: 500; border-radius: 8px; }

.results { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; transition: border-color .2s, opacity .2s; }
.card[data-state="active"] { border-color: var(--accent); }
.card[data-state="skipped"] { opacity: 0.45; }
.label { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.down { background: var(--down); }
.dot.up { background: var(--up); }
.value { margin-top: 4px; display: flex; align-items: baseline; gap: 6px; }
.value span { font-size: 36px; font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.value small { color: var(--muted); }
.sub { min-height: 18px; font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }

.saved { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-size: 14px; }
.saved a { word-break: break-all; font-weight: 600; }

.chart-head { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; font-size: 13px; color: var(--muted); }
.progress { flex: 1; height: 4px; background: var(--grid); border-radius: 2px; overflow: hidden; }
#bar { height: 100%; width: 0; background: var(--accent); transition: width .1s linear; }
canvas { display: block; width: 100%; height: 220px; }

.history-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.history h2 { font-size: 15px; margin: 0; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; font-variant-numeric: tabular-nums; }
th { text-align: left; font-weight: 500; color: var(--muted); padding: 6px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 7px 8px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }