:root {
  color-scheme: light dark;
  --bg: #f8fafc;
  --panel: #ffffff;
  --text: #172033;
  --muted: #667085;
  --line: #d0d5dd;
  --accent: #0b7285;
  --good: #287d3c;
  --bad: #b42318;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111827;
    --panel: #1f2937;
    --text: #f9fafb;
    --muted: #aeb6c2;
    --line: #374151;
    --accent: #4fb3c8;
    --good: #47b881;
    --bad: #ff6b6b;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

header {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

main,
.header-inner {
  width: calc(100vw - 32px);
  margin: 0 auto;
}

.header-inner {
  padding: 24px 0;
  display: flex;
  gap: 16px;
  align-items: end;
  justify-content: space-between;
  flex-wrap: wrap;
}

h1 { margin: 0; font-size: 28px; line-height: 1.2; }
h2 { margin: 0 0 12px; font-size: 18px; line-height: 1.3; }
.meta, .note { color: var(--muted); font-size: 14px; }
main { padding: 24px 0 40px; }

.overview-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 16px;
  min-width: 0;
}

.table-wrap {
  overflow: auto;
  max-height: 520px;
  border: 1px solid var(--line);
  border-radius: 6px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  padding: 9px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  position: sticky;
  top: 0;
  background: var(--panel);
  color: var(--muted);
  font-size: 12px;
  z-index: 1;
}

tr { cursor: pointer; }
tr:hover { background: color-mix(in srgb, var(--accent) 10%, transparent); }
tr.movement-uncertain {
  color: var(--muted);
}
tr.movement-uncertain .delta-bad,
tr.movement-uncertain .delta-good,
tr.movement-uncertain .trend-cell {
  color: var(--muted);
}
.name-cell { max-width: 720px; overflow: hidden; text-overflow: ellipsis; }
.impact-cell,
.range-cell,
.value-cell,
.delta-cell {
  font-variant-numeric: tabular-nums;
}
.range-muted { color: var(--muted); font-weight: 600; }
.delta-bad { color: var(--bad); font-weight: 700; }
.delta-good { color: var(--good); font-weight: 700; }
.spark { display: block; width: 110px; height: 28px; }

.trend-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 12px 0 16px;
}

.trend-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  padding: 14px;
  text-align: left;
  cursor: pointer;
  font: inherit;
  min-width: 0;
}

.trend-card:hover { border-color: var(--accent); }
.trend-label { color: var(--muted); font-size: 12px; font-weight: 700; text-transform: uppercase; }
.trend-name { margin-top: 8px; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trend-value { margin-top: 6px; font-size: 22px; font-weight: 800; }
.trend-detail { margin-top: 4px; color: var(--muted); font-size: 13px; }

.toolbar {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(180px, 240px) repeat(7, minmax(120px, 170px)) minmax(110px, 140px);
  gap: 12px;
  align-items: end;
  margin-bottom: 20px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

select,
input[type="search"],
input[type="number"],
.toolbar button {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  padding: 9px 10px;
  font: inherit;
}

.toolbar button {
  cursor: pointer;
  font-weight: 600;
}

.toolbar button:disabled {
  color: var(--muted);
  cursor: default;
}

#chart, .series-panel {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.heatmap-section {
  margin-top: 28px;
}

.chart-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  align-items: stretch;
}

.chart-selection {
  min-height: 24px;
  margin: -6px 0 8px;
  color: var(--muted);
  font-size: 14px;
}

.chart-selection button {
  margin-left: 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  padding: 3px 8px;
}

#chart {
  height: clamp(620px, 72vh, 900px);
  min-height: 620px;
  padding: 16px;
}

.series-panel {
  max-height: 240px;
  min-height: 0;
  overflow: auto;
  padding: 10px;
}

.series-panel[hidden] { display: none; }

.series-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 4px;
}

.series-button {
  display: grid;
  grid-template-columns: 12px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  width: 100%;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  padding: 6px 8px;
  text-align: left;
}

.series-button:hover {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.series-button.series-active {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  outline: 1px solid color-mix(in srgb, var(--accent) 55%, transparent);
}

.series-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
}

.series-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
}

#heatmap {
  width: 100%;
  overflow: auto;
  padding: 12px 0 0;
}

#chart-canvas {
  width: 100%;
  height: 100%;
}

.heatmap-grid {
  display: grid;
  grid-template-columns: minmax(180px, max-content) repeat(var(--run-count), 32px);
  gap: 3px;
  align-items: center;
  min-width: max-content;
}

.heatmap-label,
.heatmap-run {
  color: var(--muted);
  font-size: 11px;
}

.heatmap-label {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 260px;
  padding-right: 8px;
}

.heatmap-run {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  height: 96px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.heatmap-cell {
  width: 32px;
  height: 18px;
  border-radius: 3px;
  border: 1px solid color-mix(in srgb, var(--line) 65%, transparent);
  background: color-mix(in srgb, var(--line) 35%, transparent);
}

.heatmap-slow {
  border-color: var(--bad);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--bad) 45%, transparent);
}

.heatmap-very-slow {
  border-color: var(--bad);
  box-shadow:
    inset 0 0 0 2px color-mix(in srgb, var(--bad) 72%, transparent),
    0 0 0 1px color-mix(in srgb, var(--bad) 28%, transparent);
}

.heatmap-empty {
  display: grid;
  min-height: 180px;
  place-items: center;
  color: var(--muted);
  font-size: 14px;
}

.summary { margin-top: 16px; color: var(--muted); font-size: 14px; }

.toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 10;
  pointer-events: none;
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--text) 18%, transparent);
  font-size: 14px;
  font-weight: 700;
  opacity: 0;
  padding: 10px 14px;
  transform: translateY(8px);
  transition: opacity 120ms ease, transform 120ms ease;
}

.toast-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .overview-grid { grid-template-columns: 1fr; }
  .trend-grid { grid-template-columns: 1fr; }
  .toolbar { grid-template-columns: 1fr; }
  .chart-shell { grid-template-columns: 1fr; }
  #chart { height: 620px; }
  .series-panel { height: 220px; min-height: 0; }
}