.nv-loading::after { content: ""; display: inline-block; width: 14px; height: 14px; border: 2px solid #e2e8f0; border-top-color: #1b3a6b; border-radius: 50%; animation: nv-spin 0.6s linear infinite; vertical-align: middle; margin-left: 6px; }
@keyframes nv-spin { to { transform: rotate(360deg); } }
.nv-skeleton { background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%); background-size: 200% 100%; animation: nv-shimmer 1.4s ease-in-out infinite; border-radius: 6px; display: inline-block; height: 16px; }
@keyframes nv-shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }
.nv-empty { text-align: center; padding: 2.5rem 1.5rem; color: #64748b; font-size: 14px; background: #f8fafc; border: 1px dashed #cbd5e1; border-radius: 10px; margin: 1rem 0; }
.nv-empty .nv-empty-icon { font-size: 36px; margin-bottom: 8px; opacity: 0.6; }
.nv-fallo-toc { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 8px; padding: 14px 18px; margin: 1rem 0; }
.nv-fallo-toc h4 { margin: 0 0 10px; font-size: 13px; color: #94a3b8; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; }
.nv-fallo-toc ul { list-style: none; padding: 0; margin: 0; }
.nv-fallo-toc li { padding: 4px 0; }
.nv-fallo-toc a { color: #1b3a6b; text-decoration: none; font-size: 13px; }
.nv-fallo-toc a:hover { text-decoration: underline; }