:root {
  --bg: #fafafa;
  --fg: #1a1a1a;
  --muted: #666;
  --line: #ddd;
  --warp: #2a6f97;
  --cell: #b5651d;
  --shared: #5a5a5a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161616;
    --fg: #e8e8e8;
    --muted: #9a9a9a;
    --line: #333;
  }
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}
body { padding: 16px; max-width: 1600px; margin: 0 auto; }
a { color: inherit; }
header { margin-bottom: 12px; }
header h1 { font-size: 1.3em; margin: 0 0 4px 0; }
header .crumb { color: var(--muted); font-size: 0.9em; }
.badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 10px;
  font-size: 0.8em;
  color: #fff;
  vertical-align: middle;
  margin-left: 8px;
}
.badge.warp-gap { background: var(--warp); }
.badge.cell-gap { background: var(--cell); }
.badge.shared { background: var(--shared); }
.lines { margin: 8px 0 12px 0; }
.lines p { margin: 2px 0; }
.lines b { display: inline-block; min-width: 5em; }
.panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  height: 70vh;
  min-height: 420px;
}
@media (max-width: 900px) {
  .panels { grid-template-columns: 1fr; height: auto; }
  .panel { height: 60vh; }
}
.panel {
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.panel .label {
  padding: 4px 8px;
  font-size: 0.85em;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.panel iframe { flex: 1; border: 0; width: 100%; }
.panel .empty {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  color: var(--muted);
  text-align: center;
  font-style: italic;
}
.todo { margin-top: 12px; color: var(--muted); font-size: 0.9em; }
.todo ul { margin: 4px 0 0 0; padding-left: 20px; }
table { border-collapse: collapse; width: 100%; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: 0.9em; }