.controls {
            background: #fff;
            border-radius: 12px;
            padding: 20px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            justify-content: center;
        }
        
        .btn {
            padding: 10px 16px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            border: none;
            transition: all 0.2s ease;
        }
        
        .btn-primary {
            background: #007bff;
            color: white;
        }
        
        .btn-primary:hover {
            background: #0056b3;
        }
        
        .btn-secondary {
            background: #6c757d;
            color: white;
        }
        
        .btn-secondary:hover {
            background: #545b62;
        }
        
        .cards-container {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        /* Artwork Card Styles */
        .artwork-card {
            background: #fff;
            border-radius: 8px;
            width: 100%;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            padding: 24px;
            display: flex;
            flex-direction: row;
            justify-content: space-between;
            gap: 8px;
            transition: all 0.3s ease;
        }
        
        .artwork-card.validation-error {
            border: 2px solid #e74c3c;
            background-color: #fdf2f2;
            box-shadow: 0 4px 12px rgba(231, 76, 60, 0.15);
        }
        
        .preview-area {
            display: flex;
            flex-direction: column;
            gap: 20px;
            align-items: flex-start;
            width: 100%;
            max-width: 100px;
        }
        
        .preview-container {
            width: 100px;
            height: 100%;
            border-radius: 8px;
            overflow: hidden;
            border: 1px solid #e9ecef;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            position: relative;
        }
        
        .preview-image {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: opacity 0.3s ease;
            position: relative;
        }
        
        .position-label {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: rgba(0, 0, 0, 0.7);
            color: white;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            z-index: 2;
            text-transform: uppercase;
            letter-spacing: 1px;
        }
        
        .pdf-preview {
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 10px;
            text-align: center;
            background: #f8f9fa;
            transition: opacity 0.3s ease;
        }
        
        .pdf-icon {
            font-size: 32px;
            color: #e74c3c;
            margin-bottom: 8px;
        }
        
        .pdf-name {
            font-size: 11px;
            color: #6c757d;
            word-break: break-word;
            max-width: 100%;
        }
        
        .artwork-info {
            flex: 1;
            height: 100%;
            width: 100%;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            justify-content: space-between;
        }
        
        .artwork-title {
            font-size: 18px;
            font-weight: 600;
            color: #212529;
            margin-bottom: 8px;
            display: none;
        }
        
        .artwork-description {
            font-size: 14px;
            color: #6c757d;
            margin-bottom: 12px;
        }
        
        .file-details {
            font-size: 13px;
            color: #6c757d;
            margin-top: 8px;
            transition: opacity 0.3s ease;
        }
        
        .upload-area {
            border: 1px dashed #ced4da;
            border-radius: 8px;
            padding: 20px;
            text-align: center;
            cursor: pointer;
            transition: all 0.2s ease;
            width: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 0;
        }
        
        .upload-area:hover {
            border-color: #007bff;
            background: #f8fbff;
        }
        
        .upload-area input {
            display: none;
        }
        
        .upload-icon {
            width: 24px;
            height: 24px;
            color: #6c757d;
            margin-bottom: 8px;
        }
        
        .upload-text {
            font-size: 13px;
            color: #495057;
            margin-bottom: 4px;
        }
        
        .file-types {
            font-size: 11px;
            color: #6c757d;
        }
        
        .actions {
            display: flex;
            gap: 10px;
            width: 100%;
        }
        
        .btn-remove {
            background: #e9ecef;
            color: #495057;
            border-radius: 6px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s;
            border: none;
            font-size: 15px;
            display: none;
            align-items: center;
            gap: 6px;
            padding: 10px 16px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            border: none;
            transition: all 0.2s ease;
            width: 100%;
        }
        
        .btn-remove:hover {
            background: #dee2e6;
        }
        
        .error {
            color: #e74c3c;
            font-size: 13px;
            margin-top: 8px;
            display: none;
        }
        
        .loading {
            position: absolute;
            top: 50%;
            left: 50%;
            width: 30px;
            height: 30px;
            border: 3px solid rgba(0, 123, 255, 0.2);
            border-top: 3px solid #007bff;
            border-radius: 50%;
            animation: spinArt 1s linear infinite;
            transform: translate(-50%, -50%);
            z-index: 10;
            display: none;
        }
        
        @keyframes spinArt {
            to {
                transform: translate(-50%, -50%) rotate(360deg);
            }
        }
        
        .fade-out {
            opacity: 0;
        }
        
        /* Mobile-first responsive design */
        @media (max-width: 768px) {
            .artwork-card {
                padding: 16px;
            }
            
            .preview-area {
                flex-direction: column;
                gap: 16px;
            }
            
            .preview-container {
                max-width: none;
            }
            
            .artwork-info {
                gap: 12px;
            }
            
            .artwork-title {
                font-size: 14px;
            }
            
            .position-label {
                font-size: 12px;
                padding: 6px 12px;
            }
            
            .btn {
                padding: 12px 16px;
                font-size: 15px;
            }
        }
        
        @media (max-width: 480px) {
            body {
                padding: 12px;
            }
            
            .artwork-card {
                padding: 12px;
                border-radius: 10px;
            }
            
            .upload-area {
                padding: 16px;
            }
            
            .upload-text {
                font-size: 13px;
            }
            
            .file-types {
                font-size: 11px;
            }
            
            .position-label {
                font-size: 11px;
                padding: 4px 10px;
            }
        }
        
        @media (min-width: 769px) {
            .artwork-card {
                flex-direction: row;
            }
            
            .preview-area {
                /* max-width: 250px; */
            }
            
            .preview-container {
                /* width: 120px;
                height: 140px; */
            }
        }
        
        /* Large screens */
        @media (min-width: 1200px) {
            .artwork-card {
                max-width: 900px;
            }
            
            
            .artwork-title {
                font-size: 20px;
            }
        }
        
        /* Touch device optimizations */
        @media (hover: none) {
            .upload-area:hover {
                border-color: #ced4da;
                background: #fff;
            }
            
            .upload-area:active {
                border-color: #007bff;
                background: #f8fbff;
            }
            
            .btn-remove:hover {
                background: #e9ecef;
            }
            
            .btn-remove:active {
                background: #dee2e6;
            }
        }