:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #1c2430;
  --muted: #5b6573;
  --line: #d7dce3;
  --accent: #0b5cad;
  --danger: #b3261e;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
}

* { box-sizing: border-box; }
body { margin: 0; line-height: 1.45; }
main { max-width: 72rem; margin: 0 auto; padding: 1.5rem 1rem 3rem; }
h1 { font-size: 1.6rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.25rem; margin: 0 0 0.5rem; }
h3 { font-size: 1.05rem; margin: 1.25rem 0 0.5rem; }
.muted { color: var(--muted); }
.breadcrumb { margin: 0 0 0.5rem; }
a { color: var(--accent); }

.topbar {
  display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap;
  padding: 0.75rem 1rem; background: var(--surface); border-bottom: 1px solid var(--line);
}
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
.topbar nav { flex: 1; }
.session { display: flex; align-items: center; gap: 0.75rem; margin: 0; }
.who { color: var(--muted); font-size: 0.9rem; }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 0.5rem;
  padding: 1.25rem; margin: 0 0 1rem;
}
.narrow { max-width: 26rem; margin: 2rem auto; }

form label { display: block; margin: 0.75rem 0 0.25rem; font-weight: 600; }
form input[type="email"], form input[type="password"], form input[type="date"] {
  width: 100%; padding: 0.5rem 0.6rem; border: 1px solid var(--line); border-radius: 0.35rem;
  font: inherit;
}
button, .button {
  margin-top: 1rem; padding: 0.55rem 1rem; border: 0; border-radius: 0.35rem;
  background: var(--accent); color: #fff; font: inherit; cursor: pointer;
}
.link-button {
  margin: 0; padding: 0; background: none; color: var(--accent); text-decoration: underline;
}
:focus-visible { outline: 3px solid #f5a623; outline-offset: 2px; }
.alert { color: var(--danger); font-weight: 600; }

.secondary { background: var(--surface); color: var(--accent); border: 1px solid var(--accent); }

form.range { display: flex; align-items: flex-end; gap: 1rem; flex-wrap: wrap; margin: 1rem 0; }
form.range label { margin-top: 0; }
form.range button { margin-top: 0; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { padding: 0.45rem 0.6rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
thead th { background: #eef1f5; font-weight: 600; }
tbody th { font-weight: 600; }
td.num, th.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }

.stats { display: flex; gap: 1rem; flex-wrap: wrap; margin: 0 0 1rem; }
.stats div { flex: 1 1 12rem; border: 1px solid var(--line); border-radius: 0.4rem; padding: 0.6rem 0.8rem; }
.stats dt { color: var(--muted); font-size: 0.85rem; }
.stats dd { margin: 0.15rem 0 0; font-size: 1.4rem; font-weight: 700; }

.status { display: inline-block; white-space: nowrap; padding: 0.1rem 0.5rem; border-radius: 1rem; font-size: 0.85rem; font-weight: 600; border: 1px solid currentColor; }
.status-online { color: #1b7a3e; }
.status-offline { color: #a15c00; }
.status-never, .status-inactive { color: var(--muted); }

.bar { display: block; width: 100%; height: 1.5rem; margin: 0.25rem 0 0.5rem; }
.mini-bar { display: inline-block; vertical-align: middle; width: 6rem; height: 0.7rem; margin-left: 0.5rem; }
.cell-value { display: inline-block; min-width: 4.5rem; }
.bar-track { fill: #e6e9ef; }
.bar rect:not(.bar-track), .mini-bar rect:not(.bar-track) { stroke: #ffffff; stroke-width: 1; vector-effect: non-scaling-stroke; }
.seg-ok-0 { fill: #c6dbef; background: #c6dbef; }
.seg-ok-1 { fill: #9ecae1; background: #9ecae1; }
.seg-ok-2 { fill: #6baed6; background: #6baed6; }
.seg-ok-3 { fill: #3182bd; background: #3182bd; }
.seg-risk-0 { fill: #fdae6b; background: #fdae6b; }
.seg-risk-1 { fill: #f16913; background: #f16913; }
.seg-risk-2 { fill: #d94801; background: #d94801; }
.seg-risk-3 { fill: #8c2d04; background: #8c2d04; }
.swatch { display: inline-block; width: 0.8rem; height: 0.8rem; margin-right: 0.5rem; border-radius: 0.15rem; vertical-align: -0.1rem; }

.method-note { color: var(--muted); font-size: 0.9rem; margin-top: 1.5rem; }

@media print {
  .topbar, .no-print { display: none !important; }
  :root { --bg: #ffffff; }
  main { max-width: none; padding: 0; }
  .card { border: 0; padding: 0; break-inside: avoid; }
  .table-wrap { overflow: visible; }
  svg rect, .swatch { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  table { font-size: 0.85rem; }
}