.bulk-delete-mode .chat-item {
    transition: all 0.2s ease;
}

.bulk-delete-mode .chat-item:hover {
    background-color: rgba(55, 65, 81, 0.5);
}

.bulk-delete-checkbox {
    transition: opacity 0.2s ease;
}

#bulk-delete-controls {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#bulk-delete-button {
    transition: all 0.2s ease;
}

#bulk-delete-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.chat-item.bulk-selected {
    background-color: rgba(59, 130, 246, 0.2);
    border-left: 3px solid #3b82f6;
}

.drag-over {
    background-color: rgba(75, 85, 99, 0.5) !important;
}