/* ═══════════════════════════════════════════════════════════
   ALGORITHM WATCHDOG LAB — page-specific styles. Editorial
   chrome inherits from main.css; this file adds the editorial
   lede block, the histogram + trend pair, the heatmap (the
   centerpiece), the stacked-bar category mix, and the channels
   table.
   ═══════════════════════════════════════════════════════════ */

.aw-main { background: var(--paper); color: var(--ink); }

/* ── Hero ───────────────────────────────────────────────────── */
.aw-hero {
  padding: 120px 48px 60px;
  max-width: 1200px;
  margin: 0 auto;
}
.aw-title { margin-top: 22px; }
.aw-kicker {
  margin-top: 24px;
  max-width: 720px;
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.aw-dateline {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  max-width: 900px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.aw-dateline .label { color: var(--ink-dim); }
.aw-dateline .value {
  color: var(--ink);
  margin-top: 4px;
  text-transform: none;
  letter-spacing: 0.04em;
  font-size: 12px;
}

/* ── Section wrapper ────────────────────────────────────────── */
.aw-section { padding: 80px 48px; max-width: 1200px; margin: 0 auto; }
.aw-section .section-label { margin-bottom: 28px; }
.aw-prose {
  max-width: 720px;
  margin-top: 26px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.aw-note {
  max-width: 760px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin-bottom: 36px;
}

/* ── The lede block (the editorial signature) ───────────────── */
.aw-lede-wrap {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 36px 0;
  max-width: 880px;
  margin-bottom: 18px;
}
.aw-lede {
  font-family: "Newsreader", Georgia, serif;
  font-size: 26px;
  line-height: 1.4;
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.005em;
}

/* ── Charts — generic frame ─────────────────────────────────── */
.aw-charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.aw-chart-wrap {
  border: 1px solid var(--ink);
  background: var(--paper);
  padding: 18px 20px 16px;
}
.aw-chart-wide { grid-column: 1 / -1; }
.aw-chart-head {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
  border-bottom: 1px solid var(--ink-dim);
  padding-bottom: 8px;
  margin-bottom: 14px;
}
.aw-chart-wrap svg {
  width: 100%;
  height: auto;
  display: block;
}
.aw-chart-wrap .axis line,
.aw-chart-wrap .axis path { stroke: var(--ink-dim); fill: none; }
.aw-chart-wrap .axis text {
  font-family: "DM Mono", monospace;
  font-size: 9px;
  fill: var(--ink-dim);
}
.aw-chart-wrap .gridline {
  stroke: var(--ink-dim);
  stroke-dasharray: 2 3;
  opacity: 0.18;
}
.aw-chart-wrap .data-line {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.5;
}
.aw-chart-wrap .bar { fill: var(--ink); }
.aw-chart-wrap .bar.median { fill: var(--accent); }
.aw-chart-wrap .median-line {
  stroke: var(--accent);
  stroke-width: 1.5;
  stroke-dasharray: 3 3;
}
.aw-chart-wrap .median-label {
  font-family: "DM Mono", monospace;
  font-size: 10px;
  fill: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* ── Heatmap (the centerpiece) ───────────────────────────────── */
.aw-heatmap-wrap {
  border: 1px solid var(--ink);
  background: var(--paper);
  padding: 22px 24px;
}
#aw-heatmap {
  width: 100%;
  height: auto;
  display: block;
}
#aw-heatmap .cell {
  stroke: var(--paper);
  stroke-width: 0.5;
}
#aw-heatmap .cell:hover { stroke: var(--ink); stroke-width: 1; }
#aw-heatmap .label {
  font-family: "DM Mono", monospace;
  font-size: 9px;
  fill: var(--ink-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.aw-heatmap-legend {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 9px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.aw-heatmap-legend .swatches { display: flex; }
.aw-heatmap-legend .sw {
  width: 18px;
  height: 12px;
  display: inline-block;
}

/* ── Stacked bars (category mix) ────────────────────────────── */
#aw-stack rect.cat-rect {
  stroke: var(--paper);
  stroke-width: 0.4;
}
#aw-stack rect.cat-rect:hover { stroke: var(--ink); stroke-width: 1; }
.aw-stack-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}
.aw-stack-legend .item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.aw-stack-legend .sw {
  width: 12px;
  height: 12px;
  display: inline-block;
}

/* ── Channels table ─────────────────────────────────────────── */
.aw-table-wrap {
  border: 1px solid var(--ink);
  overflow-x: auto;
}
.aw-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  min-width: 700px;
}
.aw-table thead tr { border-bottom: 1px solid var(--ink-dim); }
.aw-table th {
  padding: 14px 16px 10px;
  text-align: left;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  font-weight: 400;
  white-space: nowrap;
}
.aw-table th.num { text-align: right; }
.aw-table tbody tr {
  border-bottom: 1px dotted var(--ink-dim);
  transition: background 160ms;
}
.aw-table tbody tr:last-child { border-bottom: 0; }
.aw-table tbody tr:hover { background: color-mix(in oklab, var(--ink) 4%, transparent); }
.aw-table td {
  padding: 12px 16px;
  vertical-align: top;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.aw-table td.num { text-align: right; }
.aw-table td.channel {
  font-family: "Newsreader", Georgia, serif;
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0;
}

/* ── Receipts grid ──────────────────────────────────────────── */
.aw-receipts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--ink);
  margin-top: 16px;
}
.aw-receipt {
  padding: 22px 20px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.aw-receipt:nth-child(4n) { border-right: 0; }
.aw-receipt:nth-last-child(-n+4) { border-bottom: 0; }
.aw-receipt-label {
  font-family: "DM Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 8px;
}
.aw-receipt-value {
  font-family: "Newsreader", Georgia, serif;
  font-size: 28px;
  line-height: 1.05;
  color: var(--ink);
}
.aw-receipt-value .small {
  font-size: 16px;
  color: var(--ink-soft);
  margin-left: 4px;
}

.aw-colophon-section { padding-bottom: 80px; }

/* ── Mobile ─────────────────────────────────────────────────── */
@media (max-width: 1000px) {
  .aw-hero, .aw-section { padding-left: 24px; padding-right: 24px; }
  .aw-charts-row { grid-template-columns: 1fr; }
  .aw-receipts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .aw-receipt:nth-child(4n) { border-right: 1px solid var(--ink); }
  .aw-receipt:nth-child(2n) { border-right: 0; }
  .aw-dateline { grid-template-columns: 1fr; gap: 14px; }
  .aw-lede { font-size: 22px; }
}
@media (max-width: 540px) {
  .aw-receipts { grid-template-columns: 1fr; }
  .aw-receipt { border-right: 0; }
  .aw-lede { font-size: 19px; }
}