/* ===== Design tokens (modifica qui i colori) ===== */
:root {
  --bg: #282828;        /* sfondo viewport / app */
  --panel: #303030;     /* pannelli */
  --panel-hi: #3a3a3a;  /* hover */
  --border: #1d1d1d;
  --text: #EAEAEA;
  --muted: #9a9a9a;
  --accent: #E87D0D;    /* arancione Blender: strumento attivo */
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text);
  font: 13px/1.4 "Segoe UI", system-ui, sans-serif; overflow: hidden; }

/* Layout a griglia: barra su, strumenti a sinistra, viewport al centro, pannello a destra */
#app { display: grid; height: 100%;
  grid-template: 44px 1fr / 76px 1fr 190px;
  grid-template-areas: "top top top" "tools view panel"; }

#topbar  { grid-area: top; display: flex; align-items: center; gap: 22px; padding: 0 14px;
  background: var(--panel); border-bottom: 1px solid var(--border); }
#toolbar { grid-area: tools; display: flex; flex-direction: column; gap: 6px; padding: 8px 6px;
  background: var(--panel); border-right: 1px solid var(--border); }
#panel   { grid-area: panel; display: flex; flex-direction: column; gap: 8px; padding: 12px;
  background: var(--panel); border-left: 1px solid var(--border); }
#viewport { grid-area: view; position: relative; min-width: 0; min-height: 0; overflow: hidden; }
#viewport canvas { display: block; width: 100%; height: 100%; }

#tool-label { color: var(--accent); min-width: 60px; }
#topbar label { display: flex; align-items: center; gap: 8px; }
#topbar output { width: 36px; color: var(--muted); font-variant-numeric: tabular-nums; }
.check { display: flex; align-items: center; gap: 6px; cursor: pointer; }
h2 { margin: 6px 0 0; font-size: 12px; font-weight: 600; color: var(--muted); }
.hint { margin-top: auto; font-size: 11px; color: var(--muted); }

/* Pulsanti */
button { font: inherit; color: var(--text); background: var(--panel-hi); border: 1px solid var(--border);
  border-radius: 4px; padding: 7px 8px; cursor: pointer; }
button:hover { background: #484848; }
button:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
#toolbar button { display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 11px; padding: 8px 2px; }
#toolbar button span { font-size: 20px; line-height: 1; }
#toolbar button.active { background: var(--accent); border-color: var(--accent); color: #fff; }

input[type=range] { accent-color: var(--accent); width: 150px; }
input[type=checkbox] { accent-color: var(--accent); }

@media (max-width: 720px) { #app { grid-template-columns: 64px 1fr 140px; } input[type=range] { width: 90px; } }

/* ===== v2: pannello esteso, lista mesh, input numerici ===== */
#app { grid-template-columns: 76px 1fr 250px; }
#topbar { overflow-x: auto; white-space: nowrap; }
#toolbar, #panel { overflow-y: auto; }
#panel section { display: flex; flex-direction: column; gap: 6px; }
.row { display: flex; gap: 6px; align-items: center; }
.row > * { flex: 1; min-width: 0; }
input[type=number], select { width: 100%; background: #1f1f1f; color: var(--text); border: 1px solid var(--border);
  border-radius: 4px; padding: 5px 6px; font: inherit; }
.dims label { display: flex; flex-direction: column; gap: 2px; font-size: 11px; color: var(--muted); }
button.active { background: var(--accent); border-color: var(--accent); color: #fff; }
[data-mode=transform] #toolbar { opacity: .45; }
#viewport.drop { outline: 2px dashed var(--accent); outline-offset: -4px; }

/* Lista mesh della scena */
#mesh-list { list-style: none; margin: 0; padding: 0; max-height: 150px; overflow-y: auto;
  background: #262626; border: 1px solid var(--border); border-radius: 4px; }
#mesh-list li { display: flex; align-items: center; gap: 4px; padding: 3px 6px; }
#mesh-list li.sel { background: var(--accent); color: #fff; }
#mesh-list .nm { flex: 1; cursor: pointer; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#mesh-list button { padding: 0 5px; background: none; border: 0; color: inherit; }