.code-textarea {
            font-family: Consolas, Monaco, 'Courier New', monospace;
            font-size: 14px;
            resize: vertical;
            min-height: 280px;
        }
        .drop-overlay {
            display: none;
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(51, 122, 183, 0.08);
            border: 2px dashed #337ab7;
            border-radius: 4px;
            z-index: 10;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #337ab7;
            font-weight: 600;
        }
        .panel-drag-over .drop-overlay { display: flex; }
        .panel-drag-over { border-color: #337ab7; }
        
        #alertContainer {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 9999;
            max-width: 350px;
        }
        .arrow-divider {
            padding-top: 140px;
            color: #337ab7;
            font-size: 28px;
        }
        @media (max-width: 991px) {
            .arrow-divider { padding: 15px 0; }
        }