/* ═══ PASSO 3 · COLORI — parti, 3D, colore della parte (stessa griglia della Stanza) ═══
   300 + 1fr + 340, spazio 8 px; pannelli bianchi con bordo di 1 px, nessuna ombra. */
.col { position: absolute; inset: 0; display: grid; grid-template-columns: 300px minmax(0, 1fr) 340px; gap: 8px; }
.col-parti { padding: 16px 12px; overflow: auto; display: flex; flex-direction: column; gap: 2px; }
.col-abb { display: flex; flex-direction: column; gap: 6px; padding: 0 8px 14px; margin-bottom: 4px; border-bottom: 1px solid var(--rule); font-size: 13px; font-weight: 500; }
.col-abb select { height: 32px; border: 1px solid var(--control); border-radius: var(--radius-control); background: var(--surface); padding: 0 8px; font-size: 13px; }
.parte {
  display: grid; grid-template-columns: 20px minmax(0, 1fr); column-gap: 10px; align-items: center; width: 100%;
  padding: 6px 8px; border: 0; border-radius: var(--radius-control); background: none; text-align: left;
}
.parte i { grid-row: span 2; width: 20px; height: 20px; border-radius: 4px; box-shadow: inset 0 0 0 1px rgba(19, 20, 22, .14); } /* bordo del campione: i colori chiari restano visibili sul bianco. taste-skill-ignore */
.parte span { font-size: 14px; font-weight: 500; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.parte small { font-size: 12px; line-height: 16px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.parte:hover { background: var(--raised); }
.parte.is-on { background: var(--active); }
.parte.is-on span { font-weight: 600; }

.col-3d { position: relative; overflow: hidden; }
.col-3d-host { position: absolute; inset: 0; }
.col-3d.is-off::after { content: "3D non disponibile in questo browser"; position: absolute; inset: 0; display: grid; place-items: center; font-size: 13px; color: var(--muted); }
.col-zoom { position: absolute; top: 16px; right: 16px; padding: 3px; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; }
.col button svg { fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

.col-ed { display: flex; flex-direction: column; overflow: hidden; }
.col-ed-in { flex: 1; min-height: 0; overflow: auto; padding: 20px; display: flex; flex-direction: column; gap: 18px; }
.col-ed-in h3 { margin: 0; font-size: var(--fs-section); line-height: 22px; font-weight: 600; }
.col-att { display: flex; align-items: center; gap: 12px; }
.col-att i { width: 56px; height: 56px; border-radius: 8px; box-shadow: inset 0 0 0 1px rgba(19, 20, 22, .14); flex: none; }
.col-att b { display: block; font-size: 15px; font-weight: 600; }
.col-att span { font-size: 13px; color: var(--muted); }
.col-ripr { align-self: flex-start; color: var(--text); text-decoration: underline; text-underline-offset: 3px; }
.col-tav { display: grid; grid-template-columns: 1fr 1fr; gap: 2px 8px; }
.col-tav button {
  display: flex; align-items: center; gap: 8px; min-height: 32px; padding: 2px 6px; border: 0; border-radius: var(--radius-control);
  background: none; font-size: 13px; line-height: 15px; font-weight: 400; color: var(--text); text-align: left;
}
.col-tav button i { width: 18px; height: 18px; border-radius: 4px; flex: none; box-shadow: inset 0 0 0 1px rgba(19, 20, 22, .14); } /* bordo del campione: i colori chiari restano visibili sul bianco. taste-skill-ignore */
.col-tav button span { min-width: 0; }   /* nomi lunghi a capo fra le parole */
.col-tav button:hover { background: var(--raised); }
.col-tav button.is-on { background: var(--active); font-weight: 600; }
.col-lib { display: flex; gap: 8px; align-items: center; }
.col-lib input[type="color"] { width: 44px; height: 32px; padding: 2px; border: 1px solid var(--control); border-radius: var(--radius-control); background: var(--surface); cursor: pointer; }
.col-lib .nf input { width: 96px; text-align: left; text-transform: uppercase; }
.col-nome input { width: 100%; height: 32px; padding: 0 10px; border: 1px solid var(--control); border-radius: var(--radius-control); font-size: 13px; background: var(--surface); }
.col-nome input:focus { outline: none; border-color: var(--accent); }
.col-nome input::placeholder { color: var(--faint); }

@media (max-width: 1180px) { .col { grid-template-columns: 260px minmax(0, 1fr) 300px; } }
@media (max-width: 900px) { .col { grid-template-columns: 220px minmax(0, 1fr) 260px; } .col-tav { grid-template-columns: 1fr; } }