*{box-sizing:border-box}
:root{
  --bg:#efe9dc; --panel:#faf6ec; --line:#d8d0bd;
  --ink:#1c1a26; --muted:#7a7363; --accent:#e4572e;
}
html{background:var(--bg)}
body{
  margin:0; min-height:100vh;
  color:var(--ink); font-family:ui-sans-serif,system-ui,-apple-system,sans-serif;
  display:flex; flex-direction:column;
}
.back{margin:18px 24px 0;color:var(--muted);text-decoration:none;font-size:14px}
.back:hover{color:var(--ink)}
.head{max-width:1000px;width:100%;margin:0 auto;padding:8px 24px 0}
.eyebrow{letter-spacing:.14em;text-transform:uppercase;font-size:12px;color:var(--accent);margin:0 0 6px}
h1{margin:0;font-size:44px;letter-spacing:-.02em;line-height:1}
.lede{color:var(--muted);max-width:66ch;line-height:1.5;margin:10px 0 0}
.layout{max-width:1000px;width:100%;margin:0 auto;padding:20px 24px 28px;flex:1;display:grid;gap:16px}
.deck{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:14px;box-shadow:0 10px 30px rgba(60,50,20,.12)}
.stage-row{display:grid;grid-template-columns:1fr 200px;gap:14px}
.stage{position:relative}
canvas{
  width:100%;height:auto;display:block;aspect-ratio:4/3;background:#f4efe3;border-radius:10px;
  touch-action:none;box-shadow:inset 0 0 0 1px var(--line);cursor:crosshair;
}
canvas:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
button{min-height:44px}
button.tool,.frame-dots button,.swatches button{min-height:32px}
.frame-id{
  position:absolute;right:10px;bottom:10px;pointer-events:none;
  font:11px 'DM Mono',monospace;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);
  background:rgba(244,239,227,.8);border:1px solid var(--line);padding:4px 8px;border-radius:7px;
}
.side{display:grid;gap:12px;align-content:start}
.tool-group{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
button{
  border:1px solid var(--line);background:#fff;color:var(--ink);
  padding:8px 12px;border-radius:9px;font:600 13px/1 system-ui;cursor:pointer;
}
button:hover{border-color:var(--accent)}
button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
button.ghost{background:transparent}
button.tool[aria-pressed="true"]{background:var(--ink);color:#fffbe9;border-color:var(--ink)}
button kbd{opacity:.5;font-size:10px;margin-left:3px}
label{display:flex;gap:6px;align-items:center;font-size:12px;color:var(--muted)}
label span{min-width:30px;font-weight:600;color:var(--ink)}
label.check{font-size:12px;color:var(--ink);cursor:pointer}
input[type="range"]{accent-color:var(--accent);width:90px}
input[type="checkbox"]{accent-color:var(--accent)}
output{font:12px 'DM Mono',monospace;color:var(--accent)}
.ghost-red{color:#e4572e}
.ghost-blue{color:#3a7bd5}
.swatches{display:flex;gap:6px;flex-wrap:wrap}
.swatches button{
  width:26px;height:26px;border-radius:50%;padding:0;border:2px solid var(--line);
}
.swatches button[aria-pressed="true"]{border-color:var(--ink);outline:2px solid rgba(28,26,38,.25);outline-offset:2px}
.frame-dots{display:flex;gap:6px;margin-top:12px;flex-wrap:wrap}
.frame-dots button{
  width:22px;height:22px;border-radius:6px;padding:0;font:11px 'DM Mono',monospace;opacity:.75;
}
.frame-dots button.on{opacity:1;background:var(--ink);color:#fffbe9;border-color:var(--ink)}
.frame-dots button.filled{box-shadow:inset 0 0 0 2px var(--accent)}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:12px}
.book{display:flex;gap:6px;flex-wrap:wrap}
.book button{
  width:64px;height:48px;padding:0;border-radius:7px;overflow:hidden;background:#f4efe3;
}
.book button img,.book button canvas{width:100%;height:100%;object-fit:cover;display:block}
.book button[aria-label^="remove"]{width:20px;height:20px;font-size:10px;line-height:1}
.readout{font-size:13px;color:var(--muted);line-height:1.4;margin:12px 0 0}
.foot{
  display:flex;justify-content:space-between;gap:12px;
  padding:14px 24px 20px;color:var(--muted);font-size:13px;
  border-top:1px solid var(--line);max-width:1000px;width:100%;margin:0 auto;
}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--ink)}
@media(max-width:760px){
  h1{font-size:34px}
  .stage-row{grid-template-columns:1fr}
  .side{gap:8px}
}
@media(prefers-reduced-motion:reduce){
  canvas{transition:none}
}