/* =========================================================
   16. Sidebar de instancia (#nodeDrawer): editor por pestañas (Main/Child instance) y ficha de lectura
   ========================================================= */
#nodeDrawer { width: 460px; z-index: 45; }
#nodeDrawer .drawer-inner { display: flex; flex-direction: column; flex: 1; min-height: 0; }
#nodeDrawer header { display: flex; align-items: center; gap: 8px; padding: 14px 16px 10px; }
#nodeDrawer header h2 { flex: 1; min-width: 0; margin: 0; font-size: 16px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#nodeDrawer header .type-badge { flex: none; }
#nodeDrawer .drawer-body { flex: 1; min-height: 0; overflow-y: auto; padding: 14px 16px 24px; display: flex; flex-direction: column; gap: 12px; }
#nodeDrawer .tab-pane { display: flex; flex-direction: column; gap: 12px; }
#nodeDrawer .tab-pane[hidden] { display: none; }
#nodeDrawer footer { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 16px 16px; border-top: 1px solid var(--border); flex-wrap: wrap; }
#nodeDrawer footer .left { margin-right: auto; }
#nodeDrawer h3.section { margin: 6px 0 0; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--fg-3); font-weight: 600; }
#nodeDrawer .type-picker { grid-template-columns: repeat(3, 1fr); }
#nodeDrawer .type-picker .d { display: none; }
#nodeDrawer .img-preview { width: 100%; height: 150px; }
#nodeDrawer .img-field { flex-direction: column; }
#nodeDrawer .img-actions { flex-direction: row; }
#nodeDrawer .img-preview.drop-over { border-color: var(--accent); background: var(--accent-soft); }

/* Ficha de lectura (designer) */
#nodeDrawer .hero { height: 120px; border-radius: var(--radius); overflow: hidden; } /* P12: banda con el degradado de la Main instance */
#nodeDrawer .node-view .meta { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0; font-size: 13px; }
#nodeDrawer .node-view .meta dt { color: var(--fg-3); font-weight: 500; }
#nodeDrawer .node-view .meta dd { margin: 0; display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
#nodeDrawer .node-view .desc { margin: 0; color: var(--fg-2); font-size: 13.5px; line-height: 1.5; }
#nodeDrawer .node-view .empty { color: var(--fg-3); font-size: 13px; }

/* Thumbnail (P9): vista previa 16:9, icono y acciones */
#nodeDrawer .thumb-preview { aspect-ratio: 16 / 9; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #0f2a24; }
#nodeDrawer .thumb-preview canvas { display: block; width: 100%; height: 100%; }
#nodeDrawer .thumb-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
#nodeDrawer .thumb-icon-preview { height: 96px; }
#nodeDrawer .thumb-icon-preview img { object-fit: contain; }
#nodeDrawer .field-row .img-field { gap: 8px; }

/* Staff: usuario (@nombre) + rol */
.staff-row { display: grid; grid-template-columns: 1fr 1fr auto; gap: 6px; margin-bottom: 6px; }
.staff-row .staff-name { font-family: var(--mono); }
.staff-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.staff-list li { display: flex; align-items: baseline; gap: 8px; padding: 6px 8px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 13px; }
.staff-list .role { color: var(--fg-3); font-size: 12px; }

@media (max-width: 720px) {
  #nodeDrawer { width: 100%; }
  .staff-row, .doc-row { grid-template-columns: 1fr 1fr; }
  .staff-row > :last-child, .doc-row > :last-child { grid-column: 1 / -1; }
}