.containerr {
           border: 1px solid #d1f5e6;
            max-width: 900px;
            margin: 40px auto;
            background: white;
            padding: 30px;
            border-radius: 16px;
           box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        }

        .drop-zone {
            padding: 40px;
            text-align: center;
            margin: 20px 0;
            cursor: pointer;
            transition: 0.3s;
           background-color: #f0fcf7;
           border: 2px dashed #c6f0df;
           border-radius: 12px;
            color: #666;
        }

        .drop-zone.active {
            border-color: #e0f2f1;
            background: #e3f2fd;
        }
        .upload-icon {
 font-size: clamp(45px, 8vw, 48px);
 color: #4db6ac;
 margin-bottom: 10px;
}

        .preview-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 15px;
            margin: 20px 0;
        }

        .preview-card {
            position: relative;
            border: 1px solid #dee2e6;
            border-radius: 8px;
            overflow: hidden;
             box-shadow: 0 2px 8px rgba(16, 185, 129, 0.1);
        }

        .preview-img {
            width: 100%;
            height: 150px;
            object-fit: contain;
            padding: 10px;
        }

        .controls {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
            margin: 25px 0;
            align-items: center;
        }

        select, button {
            padding: 12px 25px;
            border-radius: 6px;
            font-size: 16px;
            transition: 0.3s;
        }

        select {
            border: 1px solid #ced4da;
            background: white;
        }

        button {
            background: #009688;
            color: white;
            border: none;
            cursor: pointer;
            position: relative;
        }

        button:hover {
            background: #00796b;
        }

        .progress-container {
            width: 100%;
            height: 20px;
            background: #eee;
            border-radius: 10px;
            margin: 20px 0;
            display: none;
        }

        .progress-bar {
            height: 100%;
            background: #00e676;
            border-radius: 10px;
            transition: width 0.3s ease;
        }

        .download-section {
            margin-top: 30px;
            display: none;
        }

        .download-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 15px;
            margin: 10px 0;
            background: #f8f9fa;
            border-radius: 8px;
        }

        .loading button::after {
            content: "";
            position: absolute;
            right: 15px;
            top: 50%;
            transform: translateY(-50%);
            width: 20px;
            height: 20px;
            border: 3px solid #fff;
            border-radius: 50%;
            border-top-color: transparent;
            animation: spin 0.8s linear infinite;
        }