* { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #fff56c 0%, #fc618f 100%);
            min-height: 100vh;
            padding: 20px;
        }
        .container {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
            overflow: hidden;
        }
        .header {
            background: #0e62cf;
            color: white;
            padding: 30px;
            text-align: center;
        }
        .header h1 { font-size: 2.5rem; margin-bottom: 10px; }
        .header p { opacity: 0.9; font-size: 1.1rem; }
        .content { padding: 40px; }
        .form-group { margin-bottom: 25px; }
        label { display: block; margin-bottom: 8px; font-weight: 600; color: #333; }
        textarea, select, input[type="file"] {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 16px;
        }
        textarea {
            height: 150px;
            font-family: inherit;
            resize: vertical;
        }
        textarea:focus, select:focus {
            outline: none;
            border-color: #007acc;
            box-shadow: 0 0 0 3px rgba(0, 122, 204, 0.1);
        }
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        button {
            background: linear-gradient(135deg, #2aaaff, #017cff);
            color: white;
            border: none;
            padding: 15px 30px;
            font-size: 18px;
            font-weight: 600;
            border-radius: 10px;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
            margin-top: 10px;
        }
        button:hover {
            background: linear-gradient(135deg, #0056b3, #004494);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(0, 122, 204, 0.3);
        }
        button:disabled {
            background: #ccc;
            cursor: not-allowed;
        }
        .result { margin-top: 30px; border-radius: 15px; overflow: hidden; }
        .result.loading { background: #f8f9fa; border: 2px dashed #007acc; padding: 30px; text-align: center; color: #007acc; }
        .result.success { background: #f8f9fa; border: 2px solid #28a745; padding: 20px; }
        .result.error { background: #fff5f5; border: 2px solid #dc3545; padding: 20px; color: #dc3545; }
        .result-content { padding: 15px; line-height: 1.6; }
        .loading-spinner {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid #f3f3f3;
            border-top: 3px solid #007acc;
            border-radius: 50%;
            animation: spin 1s linear infinite;
            margin-right: 10px;
        }
        @keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
        .footer { text-align: center; padding: 20px; color: #666; font-size: 14px; background: #f8f9fa; }
        #progressBarContainer { margin-top: 10px; height: 8px; background: #eee; border-radius: 4px; overflow: hidden; display: none; }
        #progressBar { width: 0%; height: 100%; background: #007acc; transition: width 0.3s; }
        @media (max-width: 768px) { .form-row { grid-template-columns: 1fr; } .header h1 { font-size: 2rem; } .content { padding: 20px; } }