:root {
  --ink: #1a1c2c; --panel: #262b44; --line: #3b4366; --text: #f4f4f4; --dim: #94b0c2;
  --ok: #38b764; --warn: #ffcd75; --bad: #ef7d57; --accent: #41a6f6;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--ink); color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, 'Segoe UI', sans-serif;
}
header {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px;
  padding: 12px 20px; border-bottom: 1px solid var(--line);
}
h1 { font-size: 18px; margin: 0; }
h2 { font-size: 15px; margin: 0 0 12px; }
.dim { color: var(--dim); font-weight: normal; }
.hint { flex-basis: 100%; }
code { background: var(--panel); padding: 1px 5px; border-radius: 4px; }
select, button {
  font: inherit; color: var(--text); background: var(--panel);
  border: 1px solid var(--line); border-radius: 6px; padding: 4px 8px; cursor: pointer;
}
button:hover, select:hover { border-color: var(--accent); }
label { display: inline-flex; align-items: center; gap: 6px; }

main { display: grid; grid-template-columns: minmax(380px, 1fr) minmax(420px, 1.3fr); gap: 20px; padding: 20px; }
@media (max-width: 900px) { main { grid-template-columns: 1fr; } }

#slots { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; }
.slot {
  background: var(--panel); border: 2px dashed var(--line); border-radius: 10px;
  padding: 10px; cursor: pointer; display: flex; flex-direction: column; gap: 6px;
}
.slot:hover, .slot.over { border-color: var(--accent); }
.slot.loaded { border-style: solid; }
.slot .title { font-weight: 600; }
.slot .file { font-family: ui-monospace, monospace; font-size: 12px; color: var(--dim); word-break: break-all; }
.slot canvas { align-self: center; image-rendering: pixelated; }
.slot .status { font-size: 12px; }
.slot .status.ok { color: var(--ok); }
.slot .status.warn { color: var(--warn); }
.slot .status.empty { color: var(--dim); }
.slot .clear { align-self: flex-end; font-size: 11px; padding: 1px 6px; }
.actions { margin-top: 12px; }
.legend { color: var(--dim); font-size: 12px; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.sw { display: inline-block; width: 12px; height: 12px; border-radius: 2px; }
.sw.body { border: 2px solid #41a6f6; }
.sw.extra { border: 2px dashed #ffcd75; }
.sw.pivot { background: #ef7d57; border-radius: 50%; }

#preview { display: flex; flex-direction: column; gap: 10px; }
.controls { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; }
#stage { width: 100%; height: 560px; border-radius: 10px; border: 1px solid var(--line); image-rendering: pixelated; }
.small { display: flex; align-items: center; gap: 12px; }
#tiny { image-rendering: pixelated; border-radius: 6px; border: 1px solid var(--line); }