:root {
  --floor: #faf7f0;
  --ink: #222;
  --accent: #d6336c;
  --sel: #1c7ed6;
  font: 14px/1.4 system-ui, sans-serif;
  color: var(--ink);
}
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { display: flex; flex-direction: column; background: #eee; }

header {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  padding: 6px 10px; background: #fff; border-bottom: 1px solid #ccc;
}
header .tools, header .view { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
header label { margin: 0 6px; user-select: none; }
button {
  font: inherit; padding: 4px 10px; border: 1px solid #bbb; border-radius: 4px;
  background: #f8f8f8; cursor: pointer;
}
button:hover { background: #eef; }
button.on { background: var(--sel); border-color: var(--sel); color: #fff; }

main { flex: 1; display: flex; min-height: 0; }
#plan { flex: 1; background: var(--floor); touch-action: none; user-select: none; }
#plan.panning { cursor: grabbing; }
#plan.adding { cursor: crosshair; }

aside {
  width: 280px; overflow-y: auto; padding: 10px 12px;
  background: #fff; border-left: 1px solid #ccc;
}
aside h3 { margin: 4px 0 8px; font-size: 15px; }
aside h4 { margin: 14px 0 6px; font-size: 13px; color: #666; }
aside .row { display: flex; align-items: center; gap: 6px; margin: 4px 0; }
aside .row > span { width: 80px; color: #555; }
aside .row input[type=text], aside .row input[type=number], aside .row select { flex: 1; min-width: 0; font: inherit; padding: 2px 4px; }
aside .buttons { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 8px; }
aside .presets { display: flex; flex-wrap: wrap; gap: 4px; }
aside .presets button { font-size: 12px; padding: 2px 6px; }
aside p.tip { color: #777; font-size: 12px; }

footer { padding: 3px 10px; font-size: 12px; color: #555; background: #fff; border-top: 1px solid #ccc; }

/* plan */
.grid1 { stroke: #e9e4d8; }
.grid12 { stroke: #d8d0bf; }
.wall { stroke: var(--ink); stroke-linecap: square; }
.cut { fill: var(--floor); }
.leaf, .swing, .glass {
  stroke: #333; fill: none; stroke-width: 1.2; vector-effect: non-scaling-stroke;
}
.swing { stroke-dasharray: 3 3; stroke-width: 1; }
.pane { fill: #fff; stroke: #333; stroke-width: 1; vector-effect: non-scaling-stroke; }
.shape { stroke-width: 1.5; vector-effect: non-scaling-stroke; fill-opacity: .55; cursor: move; }
.locked .shape { cursor: default; fill-opacity: .8; }
.hit { fill: transparent; cursor: move; }
.name { font-weight: 600; }
.lbl { pointer-events: none; fill: #222; text-anchor: middle; dominant-baseline: middle; }
.room { fill: #8a8070; text-anchor: middle; dominant-baseline: middle; font-style: italic; cursor: move; }
.outline { fill: none; stroke: var(--sel); stroke-width: 2; vector-effect: non-scaling-stroke; stroke-dasharray: 5 3; pointer-events: none; }
.handle { fill: #fff; stroke: var(--sel); stroke-width: 2; vector-effect: non-scaling-stroke; cursor: pointer; }
.measure { stroke: var(--accent); stroke-width: 2; vector-effect: non-scaling-stroke; }
.mtext { fill: var(--accent); font-weight: 600; text-anchor: middle; paint-order: stroke; stroke: #fff; stroke-width: 3px; }
.ghost { stroke: var(--sel); stroke-opacity: .6; stroke-linecap: square; }