:root {
  --bg: #0d1015;
  --panel: #151a22;
  --panel-2: #1c232d;
  --line: #262f3b;
  --text: #e6eaef;
  --muted: #8b95a3;
  --accent: #ffcf4a;
  --accent-dim: #6b5a24;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font: 13px/1.45 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

#app {
  display: grid;
  grid-template-columns: 296px 1fr;
  height: 100%;
}

/* ---------------- pannello ---------------- */

#panel {
  background: var(--panel);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  padding: 16px 16px 32px;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

#panel h1 {
  font-size: 15px;
  margin: 0 0 2px;
  letter-spacing: 0.2px;
}

#panel .sub {
  color: var(--muted);
  font-size: 11px;
  margin-bottom: 18px;
}

section {
  border-top: 1px solid var(--line);
  padding: 14px 0 4px;
}
section:first-of-type { border-top: 0; padding-top: 0; }

h2 {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.9px;
  color: var(--muted);
  margin: 0 0 10px;
  font-weight: 600;
}

label {
  display: block;
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 4px;
}

.field { margin-bottom: 10px; }
.row { display: flex; gap: 8px; }
.row > * { flex: 1; min-width: 0; }

input[type="text"], input[type="number"], select {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  padding: 6px 8px;
  font: inherit;
  font-size: 12px;
}
input:focus, select:focus, button:focus-visible {
  outline: 2px solid var(--accent-dim);
  outline-offset: 1px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
  margin: 2px 0 0;
}

button {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 6px;
  padding: 7px 10px;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
button:hover { background: #232c38; border-color: #35414f; }
button:active { transform: translateY(1px); }

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #241d05;
  font-weight: 600;
}
button.primary:hover { background: #ffd968; }

.icon-btn { flex: 0 0 34px; padding: 7px 0; }

.checkline {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
}
.checkline input { accent-color: var(--accent); }

.value {
  float: right;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

/* ---------------- info ---------------- */

.info {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  font-size: 12px;
}
.info dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 3px 10px; }
.info dt { color: var(--muted); }
.info dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.swatch {
  display: inline-block;
  width: 9px; height: 9px;
  border-radius: 2px;
  margin-right: 5px;
  vertical-align: -1px;
  border: 1px solid rgba(255,255,255,0.25);
}

#legend { display: grid; grid-template-columns: 1fr 1fr; gap: 3px 8px; font-size: 11px; }
#legend span { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

kbd {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 1px 5px;
  font: 11px ui-monospace, monospace;
  color: var(--text);
}
.keys { display: grid; grid-template-columns: auto 1fr; gap: 5px 10px; font-size: 11px; color: var(--muted); align-items: center; }

/* ---------------- scena ---------------- */

#stage { position: relative; overflow: hidden; }

#view {
  display: block;
  width: 100%;
  height: 100%;
  cursor: grab;
  touch-action: none;
}
#view.is-dragging { cursor: grabbing; }

#hud {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: flex;
  gap: 6px;
  font: 11px ui-monospace, monospace;
  color: var(--muted);
  background: rgba(13,16,21,0.72);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 5px 9px;
  backdrop-filter: blur(4px);
  pointer-events: none;
}
#hud b { color: var(--text); font-weight: 600; }

#busy {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  background: rgba(13,16,21,0.6);
  font-size: 13px;
  color: var(--muted);
}
#busy.on { display: grid; }

@media (max-width: 760px) {
  #app { grid-template-columns: 1fr; grid-template-rows: 1fr 44vh; }
  #panel { order: 2; border-right: 0; border-top: 1px solid var(--line); }
}