* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        .container {
            width: 100%;
            max-width: 800px;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
            overflow: hidden;
        }

        header {
            background: linear-gradient(to right, #4776E6, #8E54E9);
            color: white;
            text-align: center;
            padding: 30px 20px;
            position: relative;
        }

        h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
        }

        .header-icons {
            display: flex;
            justify-content: center;
            gap: 30px;
            margin-top: 20px;
        }

        .icon-wrapper {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .icon-circle {
            width: 80px;
            height: 80px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            margin-bottom: 10px;
        }

        .icon-circle i {
            font-size: 40px;
        }

        .main-content {
            padding: 30px;
        }

        .conversion-types {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 30px;
        }

        .conversion-btn {
            padding: 15px 25px;
            background: #f1f3f6;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            color: #4776E6;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
        }

        .conversion-btn:hover {
            background: #e8ecf1;
        }

        .conversion-btn.active {
            background: #4776E6;
            color: white;
            box-shadow: 0 4px 15px rgba(71, 118, 230, 0.4);
        }

        .upload-area {
            border: 3px dashed #d1d9e6;
            border-radius: 20px;
            padding: 40px 20px;
            text-align: center;
            margin-bottom: 30px;
            background: #f9fafc;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .upload-area:hover {
            border-color: #4776E6;
            background: #f1f5fd;
        }

        .upload-area i {
            font-size: 60px;
            color: #4776E6;
            margin-bottom: 15px;
        }

        .upload-area h3 {
            font-size: 24px;
            color: #4776E6;
            margin-bottom: 10px;
        }

        .upload-area p {
            color: #7b8794;
            margin-bottom: 20px;
        }

        .browse-btn {
            padding: 12px 30px;
            background: #4776E6;
            color: white;
            border: none;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 5px 15px rgba(71, 118, 230, 0.4);
        }

        .browse-btn:hover {
            background: #3665d3;
            transform: translateY(-2px);
        }

        .vector-img {
            max-width: 180px;
            display: block;
            margin: 10px auto;
        }

        .preview-area {
            display: flex;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 30px;
        }

        .preview-box {
            flex: 1;
            text-align: center;
        }

        .preview-box h4 {
            margin-bottom: 15px;
            color: #4776E6;
        }

        .image-preview {
            width: 100%;
            height: 180px;
            border: 2px solid #d1d9e6;
            border-radius: 10px;
            overflow: hidden;
            display: flex;
            justify-content: center;
            align-items: center;
            background: #f9fafc;
        }

        .image-preview img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
        }

        .image-preview p {
            color: #7b8794;
        }

        .action-buttons {
            display: flex;
            justify-content: center;
            gap: 15px;
        }

        .action-btn {
            padding: 15px 30px;
            border: none;
            border-radius: 50px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .convert-btn {
            background: linear-gradient(to right, #4776E6, #8E54E9);
            color: white;
            box-shadow: 0 5px 15px rgba(71, 118, 230, 0.4);
        }

        .convert-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(71, 118, 230, 0.6);
        }

        .download-btn {
            background: #2ecc71;
            color: white;
            box-shadow: 0 5px 15px rgba(46, 204, 113, 0.4);
        }

        .download-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(46, 204, 113, 0.6);
        }

        .download-btn:disabled {
            background: #bdc3c7;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .reset-btn {
            background: #e74c3c;
            color: white;
            box-shadow: 0 5px 15px rgba(231, 76, 60, 0.4);
        }

        .reset-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(231, 76, 60, 0.6);
        }

        footer {
            text-align: center;
            padding: 20px;
            color: #7b8794;
            font-size: 14px;
            border-top: 1px solid #d1d9e6;
        }

        .file-input {
            display: none;
        }

        @media (max-width: 768px) {
            .preview-area {
                flex-direction: column;
            }
            
            .conversion-types {
                flex-direction: column;
                align-items: center;
            }
            
            .action-buttons {
                flex-direction: column;
            }
        }