.math-result, .result-preview {
            padding: 15px;
            background-color: white;
            border-radius: 4px;
            border: 1px solid #eee;
            margin: 10px 0;
            text-align: center;
        }
        .mockup-canvas-wrapper {
            background: #f0f2f5;
            border-radius: 24px;
            padding: 20px;
            text-align: center;
            box-shadow: 0 8px 20px rgba(0,0,0,0.05);
        }
        canvas#mockupCanvas {
            max-width: 100%;
            height: auto;
            border-radius: 12px;
            box-shadow: 0 12px 28px rgba(0,0,0,0.15);
            background: #fff;
        }
        .device-selector-group {
            background-color: #f8f9fc;
            border-radius: 16px;
            padding: 1rem;
        }
        .preview-header {
            font-weight: 600;
            margin-top: 0.5rem;
        }
        .upload-area {
            border: 2px dashed #cbd5e1;
            border-radius: 20px;
            padding: 1.8rem;
            text-align: center;
            transition: 0.2s;
            cursor: pointer;
            background: #fefefe;
        }
        .upload-area:hover {
            border-color: var(--primary-color);
            background: #f1f5f9;
        }
        .example-thumb {
            width: 48px;
            height: 48px;
            object-fit: cover;
            border-radius: 12px;
            border: 1px solid #ddd;
        }
        .tool-badge {
            background: #e9ecef;
            padding: 0.2rem 0.6rem;
            border-radius: 30px;
            font-size: 0.8rem;
        }
        .legend {
            display: flex;
            justify-content: center;
            gap: 1rem;
            font-size: 0.8rem;
            margin-top: 12px;
        }
        .download-btn {
            background: #2c3e66;
            border: none;
        }
        .btn-export {
            background: #0d6efd;
            color: white;
        }