::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

.loader {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #10b981;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.drag-preview {
    animation: pulse-preview 1s ease-in-out infinite;
}

@keyframes pulse-preview {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 0.5; }
}

#calendar.delete-mode button {
    cursor: crosshair;
}

.delete-hover {
    background-color: #fecdd3 !important;
    color: #e11d48 !important;
    box-shadow: none !important;
    transform: scale(1.05);
}