:root {
  --bg: #0d0f14;
  --bg-elevated: #141720;
  --border: #1e2230;
  --text: #e0e4ec;
  --text-muted: #8892a4;
  --text-dim: #5a6478;
  --accent: #3effb0;
  --warning: #ffb347;
  --danger: #ff5c5c;
  --target: #6fe9a8;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
}

h1, h2, h3 { font-weight: 600; }
h1 { font-size: 28px; color: var(--accent); margin-bottom: 4px; }
h2 { font-size: 18px; margin-bottom: 12px; border-bottom: 1px solid var(--border); padding-bottom: 6px; }
h3 { font-size: 15px; margin-bottom: 8px; color: var(--text-muted); }

.hdr {
  margin-bottom: 36px;
}
.hdr-sub {
  color: var(--text-muted);
  font-size: 13px;
  max-width: 800px;
  margin-bottom: 16px;
}
.hdr-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
}
.hdr-stat-label { color: var(--text-muted); margin-right: 8px; }
.hdr-stat-val { color: var(--accent); font-weight: 600; }
.hdr-stat-val.target { color: var(--target); }
.hdr-stat-val.warn { color: var(--warning); }
.hdr-stat-val.danger { color: var(--danger); }

.section {
  margin-bottom: 40px;
}
.section-sub {
  color: var(--text-muted);
  font-size: 12px;
  margin-bottom: 12px;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  min-height: 250px;
}
.topic-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
}
.topic-card-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}
.topic-card-num {
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.topic-card-title {
  font-size: 13px;
  font-weight: 600;
}
.topic-card-min {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
}
.topic-card-min.below5 { color: var(--danger); }
.topic-card-min.below8 { color: var(--warning); }
.topic-card-min.target { color: var(--target); }
.topic-card-line {
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  margin-top: 4px;
}
.topic-card-dims {
  display: flex;
  gap: 4px;
  margin-top: 12px;
  flex-wrap: wrap;
}
.dim-pip {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--text-dim);
}
.dim-pip.below5 { background: var(--danger); }
.dim-pip.below8 { background: var(--warning); }
.dim-pip.target { background: var(--target); }

.chart-wrap {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  height: 360px;
}

.per-topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 16px;
}
.topic-chart-wrap {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  height: 320px;
}
.topic-chart-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--accent);
}

#heatmap-wrap {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  min-height: 360px;
  overflow-x: auto;
}
.heatmap-table {
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 12px;
  width: 100%;
}
.heatmap-table th,
.heatmap-table td {
  padding: 6px 10px;
  text-align: center;
  border: 1px solid var(--border);
}
.heatmap-table th {
  background: var(--bg);
  color: var(--text-muted);
  font-weight: 600;
}
.heatmap-table td.row-label {
  text-align: left;
  color: var(--text-muted);
  background: var(--bg);
  font-weight: 500;
  white-space: nowrap;
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.heatmap-cell {
  font-weight: 600;
}
/* Color ramp: 0=red, 5=amber, 8=green */
.heatmap-cell.s-0  { background: #5a1818; color: #ff9999; }
.heatmap-cell.s-1  { background: #6e1f1f; color: #ff9999; }
.heatmap-cell.s-2  { background: #803030; color: #ffb3b3; }
.heatmap-cell.s-3  { background: #8a4040; color: #ffc0a0; }
.heatmap-cell.s-4  { background: #806535; color: #ffd590; }
.heatmap-cell.s-5  { background: #4f4a18; color: #fff0a8; }
.heatmap-cell.s-6  { background: #4d6c30; color: #d3f098; }
.heatmap-cell.s-7  { background: #2a703a; color: #b6f0b6; }
.heatmap-cell.s-8  { background: #1c803a; color: var(--target); }
.heatmap-cell.s-9  { background: #1a8c40; color: var(--target); }
.heatmap-cell.s-10 { background: #1d9d48; color: var(--target); }

.delta-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 12px;
}
.delta-table th,
.delta-table td {
  padding: 8px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.delta-table th {
  background: var(--bg);
  color: var(--text-muted);
  font-weight: 600;
}
.delta-table td.delta-pos { color: var(--target); font-weight: 700; }
.delta-table td.delta-neg { color: var(--danger); font-weight: 700; }
.delta-table td.delta-zero { color: var(--text-dim); }

.ftr {
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
}
.ftr code {
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}