/* Design tokens — spec §4.1. Dark is default; data-theme flips. */
:root, :root[data-theme="dark"] {
  --canvas: #09090b;
  --card-grad: linear-gradient(180deg, #18181b, #121215);
  --card-solid: #121215;
  --line: #ffffff0d;
  --line-soft: #ffffff08;
  --text: #fafafa;
  --muted: #71717a;
  --faint: #52525b;
  --gain: #34d399;
  --loss: #fb7185;
  --accent: #3b82f6;
  --warn: #f59e0b;
  --warn-bg: #f59e0b1a;
  --chip-bg: #ffffff10;
  --card-shadow: none;
}
:root[data-theme="light"] {
  --canvas: #fafafa;
  --card-grad: #ffffff;
  --card-solid: #ffffff;
  --line: #e4e4e7;
  --line-soft: #f4f4f5;
  --text: #18181b;
  --muted: #71717a;
  --faint: #a1a1aa;
  --gain: #059669;
  --loss: #e11d48;
  --accent: #2563eb;
  --warn: #b45309;
  --warn-bg: #f59e0b26;
  --chip-bg: #f4f4f5;
  --card-shadow: 0 1px 2px #0000000a;
}

@font-face {
  font-family: 'Inter';
  src: url('fonts/InterVariable.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('fonts/JetBrainsMono-Regular.woff2') format('woff2');
  font-display: swap;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { color-scheme: dark; }
:root[data-theme="light"] { color-scheme: light; }
body {
  background: var(--canvas); color: var(--text);
  font-family: Inter, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-feature-settings: 'tnum';
  line-height: 1.5; min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px 40px; }

/* Chrome */
.crumbs {
  display: flex; align-items: center; gap: 8px; padding: 13px 20px;
  border-bottom: 1px solid var(--line); font-size: 13px;
  max-width: 1100px; margin: 0 auto;
}
.crumbs .sep { color: var(--faint); }
.crumbs .here { color: var(--text); font-weight: 500; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--text); }
.crumbs .meta { margin-left: auto; color: var(--faint); font-size: 11px; }
.theme-toggle {
  background: none; border: 1px solid var(--line); border-radius: 99px;
  color: var(--muted); font-size: 13px; padding: 2px 10px; cursor: pointer;
  margin-left: 12px;
}
.footer { color: var(--faint); font-size: 11px; padding-top: 24px; }

/* Cards & KPIs */
.card-row { display: grid; gap: 12px; margin: 16px 0 4px; }
.card {
  background: var(--card-grad); border: 1px solid var(--line);
  border-radius: 12px; padding: 13px 15px; box-shadow: var(--card-shadow);
}
.kpi .label { color: var(--muted); font-size: 10px; font-weight: 500; letter-spacing: .5px; text-transform: uppercase; }
.kpi .value { color: var(--text); font-size: 24px; font-weight: 650; letter-spacing: -.5px; margin-top: 4px; }
.kpi .sub { color: var(--faint); font-size: 11px; margin-top: 3px; }
.kpi .delta { font-size: 11px; font-weight: 500; margin-top: 3px; }
.up { color: var(--gain); } .down { color: var(--loss); } .flat { color: var(--muted); }

/* Chips */
.chip {
  display: inline-block; font-size: 10px; padding: 2px 8px; border-radius: 99px;
  background: var(--chip-bg); color: var(--muted);
}
.chip.warn { background: var(--warn-bg); color: var(--warn); }
.chip.good { background: color-mix(in srgb, var(--gain) 12%, transparent); color: var(--gain); }
.chip.bad  { background: color-mix(in srgb, var(--loss) 12%, transparent); color: var(--loss); }
.chip.info { background: color-mix(in srgb, var(--accent) 12%, transparent); color: var(--accent); }

/* Attention strip */
.attn { background: var(--card-solid); border: 1px solid var(--line); border-left: 3px solid var(--warn); border-radius: 10px; padding: 12px 16px; margin: 14px 0; }
.attn.clear { border-left-color: var(--gain); }
.attn .head { color: var(--warn); font-size: 10px; font-weight: 600; letter-spacing: 1px; }
.attn.clear .head { color: var(--gain); }
.attn ul { list-style: none; margin-top: 8px; display: flex; flex-direction: column; gap: 7px; }
.attn li { display: flex; gap: 8px; align-items: baseline; font-size: 12px; color: var(--text); flex-wrap: wrap; }
.attn li .why { color: var(--faint); }
.attn li a { margin-left: auto; font-size: 11px; }
.attn .dot { font-size: 10px; }
.dot.warn { color: var(--warn); } .dot.bad { color: var(--loss); } .dot.info { color: var(--accent); }

/* Section cards */
.section-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; margin-top: 4px; }
.scard .top { display: flex; justify-content: space-between; align-items: baseline; }
.scard .title { color: var(--text); font-size: 13px; font-weight: 600; }
.scard .open { font-size: 10px; }
.scard .sub { color: var(--faint); font-size: 10px; margin-top: 2px; }
.scard .stats { display: flex; gap: 14px; margin-top: 9px; font-size: 11px; color: var(--muted); flex-wrap: wrap; }
.scard .stats b { font-weight: 600; }
.scard .chips { display: flex; gap: 6px; margin-top: 9px; flex-wrap: wrap; }
.scard svg { margin-top: 8px; display: block; }
.mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }

/* Bar lists */
.barlist { margin-top: 10px; display: flex; flex-direction: column; gap: 7px; }
.bar-row { display: grid; grid-template-columns: minmax(90px, 160px) 1fr 64px; gap: 10px; align-items: center; font-size: 11px; }
.bar-label { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar-track { background: var(--chip-bg); border-radius: 99px; height: 8px; overflow: hidden; }
.bar-fill { display: block; height: 100%; border-radius: 99px; }
.bar-val { color: var(--text); text-align: right; font-variant-numeric: tabular-nums; }

/* Data tables */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; margin-top: 10px; }
table { width: 100%; border-collapse: collapse; font-size: 12px; }
thead th {
  position: sticky; top: 0; background: var(--card-solid); color: var(--muted);
  font-weight: 500; font-size: 10px; text-transform: uppercase; letter-spacing: .5px;
  padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--line); z-index: 1;
}
tbody td { padding: 7px 10px; border-top: 1px solid var(--line-soft); color: var(--text); }
tbody tr:first-child td { border-top: none; }
th.num, td.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Collapsible sections */
details.section-fold { margin-top: 18px; }
details.section-fold > summary {
  cursor: pointer; color: var(--text); font-size: 13px; font-weight: 600;
  padding: 6px 0; list-style: none; user-select: none;
}
details.section-fold > summary::before { content: '▸ '; color: var(--faint); }
details.section-fold[open] > summary::before { content: '▾ '; }

/* Donut + legend */
.donut-row { display: flex; gap: 20px; align-items: center; margin-top: 10px; flex-wrap: wrap; }
.legend { list-style: none; min-width: 180px; flex: 1; }
.legend li { display: flex; align-items: center; gap: 8px; padding: 4px 0; font-size: 12px; border-bottom: 1px solid var(--line-soft); }
.legend .swatch, .ts-legend .swatch { width: 10px; height: 10px; border-radius: 3px; display: inline-block; flex-shrink: 0; }
.legend .name { flex: 1; color: var(--text); }
.legend .pct { color: var(--muted); font-variant-numeric: tabular-nums; }

/* Timeseries */
.ts-axis { display: flex; justify-content: space-between; color: var(--faint); font-size: 10px; margin-top: 2px; }
.ts-legend { display: flex; gap: 14px; margin-top: 6px; font-size: 11px; color: var(--muted); }
.ts-legend .swatch { margin-right: 5px; }

/* Tab bar (retained-tab pages, e.g. Monday) */
.tabbar {
  position: sticky; top: 0; z-index: 5; display: flex; gap: 8px; flex-wrap: wrap;
  padding: 10px 0; background: var(--canvas); border-bottom: 1px solid var(--line); margin-bottom: 8px;
}
.tab-pill {
  background: none; border: 1px solid var(--line); border-radius: 99px; cursor: pointer;
  color: var(--muted); font-size: 12px; padding: 4px 12px;
}
.tab-pill.active { background: var(--chip-bg); color: var(--text); border-color: transparent; }
.tab-panel.hidden { display: none; }

/* Table row tones */
td.up { color: var(--gain); } td.down { color: var(--loss); } td.dim { color: var(--faint); }

@media (max-width: 720px) { .kpi .value { font-size: 20px; } }