/* LabPulse — theme tokens from the validated data-viz reference palette. */
:root {
  --surface-1: #fcfcfb;   /* card / chart surface */
  --plane:     #f9f9f7;   /* page background */
  --text-primary:   #0b0b0b;
  --text-secondary: #52514e;
  --muted:          #898781;
  --grid:      #e1e0d9;
  --axis:      #c3c2b7;
  --border:    rgba(11, 11, 11, 0.10);
  --good:      #006300;
  --bad:       #c0392b;
  --warn-bg:   #fab219;
  --warn-fg:   #3a2c00;
  --shadow:    0 1px 2px rgba(11,11,11,.05), 0 4px 16px rgba(11,11,11,.04);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --surface-1: #1a1a19;
  --plane:     #0d0d0d;
  --text-primary:   #ffffff;
  --text-secondary: #c3c2b7;
  --muted:          #898781;
  --grid:      #2c2c2a;
  --axis:      #383835;
  --border:    rgba(255, 255, 255, 0.10);
  --good:      #0ca30c;
  --bad:       #e66767;
  --warn-bg:   #fab219;
  --warn-fg:   #2a2000;
  --shadow:    0 1px 2px rgba(0,0,0,.4), 0 6px 20px rgba(0,0,0,.35);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --surface-1: #1a1a19;
    --plane:     #0d0d0d;
    --text-primary:   #ffffff;
    --text-secondary: #c3c2b7;
    --muted:          #898781;
    --grid:      #2c2c2a;
    --axis:      #383835;
    --border:    rgba(255, 255, 255, 0.10);
    --good:      #0ca30c;
    --bad:       #e66767;
    --warn-fg:   #2a2000;
    --shadow:    0 1px 2px rgba(0,0,0,.4), 0 6px 20px rgba(0,0,0,.35);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--plane);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
.viz-root { max-width: 1180px; margin: 0 auto; padding: 20px 20px 60px; }

/* ---- top bar ---- */
.topbar { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 18px; }
.brand h1 { margin: 0; font-size: 26px; font-weight: 700; letter-spacing: -0.01em; display: flex; align-items: center; gap: 10px; }
.tagline { margin: 2px 0 0; color: var(--text-secondary); font-size: 14px; }
.topbar-meta { display: flex; align-items: center; gap: 12px; }
.updated { color: var(--muted); font-size: 12.5px; }
.pulse { width: 10px; height: 10px; border-radius: 50%; background: #e34948; box-shadow: 0 0 0 0 rgba(227,73,72,.5); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(227,73,72,.5);} 70% { box-shadow: 0 0 0 8px rgba(227,73,72,0);} 100% { box-shadow: 0 0 0 0 rgba(227,73,72,0);} }
@media (prefers-reduced-motion: reduce) { .pulse { animation: none; } }

.badge { font-size: 11.5px; font-weight: 600; padding: 3px 8px; border-radius: 999px; }
.badge-warn { background: var(--warn-bg); color: var(--warn-fg); }
.icon-btn { background: var(--surface-1); color: var(--text-secondary); border: 1px solid var(--border); border-radius: 8px; width: 32px; height: 32px; cursor: pointer; font-size: 15px; }
.icon-btn:hover { color: var(--text-primary); }

/* ---- filters ---- */
.filters { display: flex; flex-wrap: wrap; gap: 14px 18px; align-items: flex-end; padding: 14px 16px; background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; box-shadow: var(--shadow); margin-bottom: 18px; }
.filter { display: flex; flex-direction: column; gap: 6px; }
.filter > label { font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
select, input[type="date"] { background: var(--plane); color: var(--text-primary); border: 1px solid var(--border); border-radius: 8px; padding: 7px 9px; font: inherit; font-size: 13px; }
.custom-range { flex-direction: row; gap: 10px; }
.custom-range label { display: flex; flex-direction: column; gap: 4px; font-size: 11.5px; color: var(--muted); }

.segmented { display: inline-flex; background: var(--plane); border: 1px solid var(--border); border-radius: 8px; padding: 2px; }
.segmented button { border: none; background: transparent; color: var(--text-secondary); padding: 6px 11px; font: inherit; font-size: 13px; border-radius: 6px; cursor: pointer; white-space: nowrap; }
.segmented button:hover { color: var(--text-primary); }
.segmented button.active { background: var(--surface-1); color: var(--text-primary); box-shadow: 0 1px 2px rgba(0,0,0,.12); font-weight: 600; }
.segmented.small button { padding: 5px 9px; font-size: 12.5px; }

/* multi-select */
.multi { position: relative; }
.multi > summary { list-style: none; cursor: pointer; background: var(--plane); border: 1px solid var(--border); border-radius: 8px; padding: 7px 9px; font-size: 13px; min-width: 160px; }
.multi > summary::-webkit-details-marker { display: none; }
.multi > summary::after { content: "▾"; float: right; color: var(--muted); }
.multi[open] > summary::after { content: "▴"; }
.multi-panel { position: absolute; z-index: 30; margin-top: 6px; background: var(--surface-1); border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow); padding: 8px; max-height: 280px; overflow: auto; min-width: 220px; }
.multi-panel .opt { display: flex; align-items: center; gap: 8px; padding: 5px 6px; border-radius: 6px; font-size: 13px; cursor: pointer; }
.multi-panel .opt:hover { background: var(--plane); }
.multi-panel .opt .dot { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.multi-panel .opt input { accent-color: #2a78d6; }
.multi-actions { display: flex; gap: 8px; padding: 4px 6px 8px; border-bottom: 1px solid var(--border); margin-bottom: 6px; }
.multi-actions button { background: none; border: none; color: #2a78d6; cursor: pointer; font: inherit; font-size: 12.5px; padding: 0; }

/* ---- KPI tiles ---- */
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.kpi { background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; box-shadow: var(--shadow); }
.kpi .k-label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; font-weight: 600; }
.kpi .k-value { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; margin-top: 4px; }
.kpi .k-delta { font-size: 12.5px; margin-top: 3px; color: var(--text-secondary); }
.k-delta .up { color: var(--good); font-weight: 600; }
.k-delta .down { color: var(--bad); font-weight: 600; }

/* ---- cards ---- */
.card { background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 16px 18px; box-shadow: var(--shadow); margin-bottom: 18px; }
.card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 10px; flex-wrap: wrap; }
.card-head h2 { margin: 0; font-size: 15.5px; font-weight: 600; }
.card-sub { margin: 3px 0 0; color: var(--muted); font-size: 12.5px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

/* ---- charts ---- */
.chart-scroll { overflow-x: auto; }
.chart { width: 100%; }
.chart svg { display: block; }
.barchart { width: 100%; }
.legend { display: flex; flex-wrap: wrap; gap: 8px 16px; margin: 4px 0 12px; }
.legend .item { display: flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--text-secondary); cursor: default; }
.legend .swatch { width: 11px; height: 11px; border-radius: 3px; flex: none; }

.bar-label { fill: var(--text-secondary); font-size: 12px; }
.bar-value { fill: var(--text-primary); font-size: 12px; font-variant-numeric: tabular-nums; }
.axis-text { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.axis-line { stroke: var(--axis); stroke-width: 1; }
.grid-line { stroke: var(--grid); stroke-width: 1; }
.col-hit { fill: transparent; cursor: pointer; }
.col-hit:hover + .col-marks, .col-hit:focus + .col-marks { opacity: .82; }

/* ---- table ---- */
.table-wrap { overflow-x: auto; }
.detail-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.detail-table th, .detail-table td { padding: 8px 10px; text-align: right; border-bottom: 1px solid var(--border); white-space: nowrap; }
.detail-table th:first-child, .detail-table td:first-child { text-align: left; }
.detail-table thead th { color: var(--muted); font-weight: 600; font-size: 11.5px; text-transform: uppercase; letter-spacing: .03em; cursor: pointer; user-select: none; position: sticky; top: 0; background: var(--surface-1); }
.detail-table thead th:hover { color: var(--text-primary); }
.detail-table th.sorted::after { content: " ▾"; color: var(--muted); }
.detail-table th.sorted.asc::after { content: " ▴"; }
.detail-table td { font-variant-numeric: tabular-nums; color: var(--text-secondary); }
.detail-table td:first-child { color: var(--text-primary); }
.detail-table tbody tr:hover { background: var(--plane); }
.who { display: flex; align-items: center; gap: 8px; }
.who .dot { width: 10px; height: 10px; border-radius: 3px; flex: none; }
.who a { color: inherit; text-decoration: none; }
.who a:hover { text-decoration: underline; }

/* ---- tooltip ---- */
.tooltip { position: fixed; z-index: 60; pointer-events: none; background: var(--surface-1); border: 1px solid var(--border); border-radius: 9px; box-shadow: var(--shadow); padding: 9px 11px; font-size: 12.5px; max-width: 280px; }
.tooltip .tt-title { font-weight: 600; margin-bottom: 6px; font-size: 12px; color: var(--text-secondary); }
.tooltip .tt-row { display: flex; align-items: center; gap: 8px; justify-content: space-between; margin: 2px 0; }
.tooltip .tt-key { display: flex; align-items: center; gap: 7px; color: var(--text-secondary); }
.tooltip .tt-line { width: 12px; height: 3px; border-radius: 2px; flex: none; }
.tooltip .tt-val { font-weight: 700; font-variant-numeric: tabular-nums; }

/* ---- misc ---- */
.foot { color: var(--muted); font-size: 12px; margin-top: 6px; display: flex; gap: 8px; flex-wrap: wrap; }
.foot-sep { opacity: .5; }
.empty { text-align: center; color: var(--muted); padding: 40px; font-size: 14px; }

@media (max-width: 860px) {
  .kpis { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .kpis { grid-template-columns: 1fr 1fr; }
  .filters { gap: 12px; }
}