:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c232c;
  --border: #2a3340;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --accent: #6366f1;
  --hero: #2ea043;
  --ballast: #f85149;
  --tag: #30363d;
  --hover: #21262d;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, sans-serif; }

.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 24px; border-bottom: 1px solid var(--border); background: var(--panel);
}
.topbar .brand { font-weight: 600; font-size: 16px; }
.topbar .tag {
  margin-left: 6px; padding: 2px 8px; font-size: 11px;
  background: var(--tag); border-radius: 4px; color: var(--text-dim);
}
.topbar nav { display: flex; gap: 12px; align-items: center; }
.topbar select, .topbar input, .topbar button {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 6px 10px; font: inherit;
}
.topbar button {
  background: var(--accent); color: white; border: none; cursor: pointer; font-weight: 500;
}
.topbar button:hover { filter: brightness(1.1); }
.topbar .btn-secondary {
  background: var(--panel-2); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 6px 12px; font: inherit; text-decoration: none;
  display: inline-flex; align-items: center; gap: 4px;
}
.topbar .btn-secondary:hover { background: var(--hover); }
.topbar .period { color: var(--text-dim); font-size: 13px; display: inline-flex; align-items: center; gap: 6px; }

main { padding: 20px 24px; max-width: 1400px; margin: 0 auto; }

.summary {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px; margin-bottom: 22px;
}
.summary .stat {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px 14px;
}
.summary .stat .label { color: var(--text-dim); font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; }
.summary .stat .value { font-size: 22px; font-weight: 600; margin-top: 4px; }
.summary .stat .sub   { font-size: 11px; color: var(--text-dim); margin-top: 2px; }

.matrix-block, .leaders article {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 16px 18px; margin-bottom: 20px;
}
.matrix-block h2, .leaders h2 { margin: 0 0 6px 0; font-size: 15px; }
.leaders h2 small { color: var(--text-dim); font-weight: 400; font-size: 12px; }
.matrix-block .hint { color: var(--text-dim); font-size: 12px; margin: 0 0 12px 0; }

table.matrix { border-collapse: collapse; }
table.matrix th, table.matrix td {
  padding: 8px 14px; border: 1px solid var(--border); text-align: center;
}
table.matrix thead th { background: var(--panel-2); color: var(--text-dim); font-weight: 500; }
table.matrix tbody th { background: var(--panel-2); color: var(--text-dim); font-weight: 500; }
table.matrix td.heat-a { background: rgba(46,160,67,0.20); }
table.matrix td.heat-b { background: rgba(99,102,241,0.18); }
table.matrix td.heat-c { background: rgba(248,81,73,0.12); }

.leaders { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 1000px) { .leaders { grid-template-columns: 1fr; } }

table.rows { width: 100%; border-collapse: collapse; font-size: 13px; }
table.rows thead th {
  background: var(--panel-2); color: var(--text-dim);
  padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--border); font-weight: 500;
}
table.rows td {
  padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top;
}
table.rows tr:hover td { background: var(--hover); }
table.rows td.num { text-align: right; font-variant-numeric: tabular-nums; }
table.rows td.gmroi-hero { color: var(--hero); font-weight: 600; }
table.rows td.gmroi-bad  { color: var(--ballast); font-weight: 600; }
table.rows td.tag span {
  display: inline-block; padding: 1px 6px; border-radius: 4px;
  font-size: 11px; background: var(--tag); color: var(--text-dim);
}

footer.generated { color: var(--text-dim); font-size: 11px; text-align: right; padding: 12px 4px; }
.empty { color: var(--text-dim); padding: 16px; text-align: center; font-style: italic; }