.container {
            max-width: 1000px;
            margin: 0 auto;
            padding: 20px;
        }
        
        header {
            text-align: center;
            margin-bottom: 30px;
            padding: 30px 20px;
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            border-radius: 15px;
            box-shadow: 0 8px 32px rgba(106, 17, 203, 0.2);
            color: white;
        }
        
        h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.2);
            color: #FFFFFF;
        }
        
        .subtitle {
            font-size: 1.1rem;
            opacity: 0.9;
        }
        
        .input-section {
            background: #f8f9fa;
            padding: 25px;
            border-radius: 15px;
            margin-bottom: 30px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #eaeaea;
        }
        
        .input-group {
            display: flex;
            gap: 10px;
            margin-bottom: 15px;
        }
        
        input {
            flex: 1;
            padding: 15px;
            border: 1px solid #ddd;
            border-radius: 10px;
            background: #ffffff;
            font-size: 1rem;
            outline: none;
            transition: all 0.3s ease;
        }
        
        input:focus {
            border-color: #6a11cb;
            box-shadow: 0 0 0 3px rgba(106, 17, 203, 0.1);
        }
        
        button {
            padding: 15px 25px;
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: bold;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(106, 17, 203, 0.2);
        }
        
        button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(106, 17, 203, 0.3);
        }
        
        button:active {
            transform: translateY(1px);
        }
        
        .example {
            font-size: 0.9rem;
            color: #666;
            margin-top: 10px;
        }
        
        .loading {
            text-align: center;
            padding: 20px;
            display: none;
        }
        
        .spinner {
            border: 5px solid rgba(106, 17, 203, 0.2);
            border-radius: 50%;
            border-top: 5px solid #6a11cb;
            width: 50px;
            height: 50px;
            animation: spin 1s linear infinite;
            margin: 0 auto 15px;
        }
        
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }
        
        .result-section {
            display: none;
            background: #f8f9fa;
            padding: 25px;
            border-radius: 15px;
            margin-bottom: 30px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
            border: 1px solid #eaeaea;
        }
        
        .video-info {
            margin-bottom: 20px;
        }
        
        .video-title {
            font-size: 1.5rem;
            margin-bottom: 10px;
            color: #333;
        }
        
        .video-meta {
            display: flex;
            gap: 20px;
            margin-bottom: 15px;
            flex-wrap: wrap;
        }
        
        .meta-item {
            background: #e9ecef;
            padding: 8px 15px;
            border-radius: 20px;
            font-size: 0.9rem;
            color: #495057;
        }
        
        .quality-selector {
            margin-bottom: 20px;
        }
        
        .quality-buttons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
        }
        
        .quality-btn {
            padding: 10px 15px;
            background: #e9ecef;
            border: none;
            border-radius: 8px;
            color: #495057;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        
        .quality-btn.active {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
            color: white;
            box-shadow: 0 4px 15px rgba(106, 17, 203, 0.2);
        }
        
        .download-buttons {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 20px;
        }
        
        .download-btn {
            padding: 10px 15px;
            background: linear-gradient(135deg, #00b09b 0%, #96c93d 100%);
            border: none;
            border-radius: 8px;
            color: white;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            font-size: 0.9rem;
        }
        
        .download-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0, 176, 155, 0.4);
        }
        
        .video-container {
            position: relative;
            width: 100%;
            padding-bottom: 56.25%; /* 16:9 aspect ratio */
            margin-bottom: 20px;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        }
        
        video {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border-radius: 10px;
            background: #000;
        }
        
        .error {
            background: rgba(220, 53, 69, 0.1);
            padding: 15px;
            border-radius: 10px;
            text-align: center;
            margin-bottom: 20px;
            display: none;
            color: #dc3545;
            border: 1px solid rgba(220, 53, 69, 0.2);
        }
        
        .api-status {
            background: rgba(40, 167, 69, 0.1);
            padding: 10px;
            border-radius: 10px;
            text-align: center;
            margin-bottom: 20px;
            display: none;
            color: #28a745;
            border: 1px solid rgba(40, 167, 69, 0.2);
        }
        
        .auto-play-toggle {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 15px;
            color: #333;
        }
        
        .toggle-switch {
            position: relative;
            display: inline-block;
            width: 50px;
            height: 24px;
        }
        
        .toggle-switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }
        
        .slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #ccc;
            transition: .4s;
            border-radius: 24px;
        }
        
        .slider:before {
            position: absolute;
            content: "";
            height: 16px;
            width: 16px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            transition: .4s;
            border-radius: 50%;
        }
        
        input:checked + .slider {
            background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
        }
        
        input:checked + .slider:before {
            transform: translateX(26px);
        }
        
        footer {
            text-align: center;
            padding: 20px;
            font-size: 0.9rem;
            color: #6c757d;
        }
        
        @media (max-width: 768px) {
            .container {
                padding: 10px;
            }
            
            h1 {
                font-size: 2rem;
            }
            
            .input-group {
                flex-direction: column;
            }
            
            button {
                width: 100%;
            }
            
            .quality-buttons, .download-buttons {
                justify-content: center;
            }
        }