body {
            margin: 0;
            overflow: hidden;
            background: linear-gradient(45deg, #0a0a0a, #1a1a1a);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100vh;
            font-family: 'Arial', sans-serif;
        }
        
        #visualizer {
            position: absolute;
            top: 0;
            left: 0;
            z-index: 1;
        }
        
        .controls {
            position: relative;
            z-index: 2;
            text-align: center;
            color: white;
            padding: 20px;
            background: rgba(0, 0, 0, 0.5);
            border-radius: 15px;
            backdrop-filter: blur(10px);
            box-shadow: 0 0 20px rgba(255, 107, 107, 0.3);
        }
        
        .upload-btn {
            background: linear-gradient(45deg, #ff6b6b, #ff8e8e, #ff6b6b);
            background-size: 200% 200%;
            border: none;
            padding: 15px 30px;
            color: white;
            border-radius: 25px;
            cursor: pointer;
            font-size: 18px;
            transition: all 0.5s ease;
            animation: gradient 3s ease infinite;
            box-shadow: 0 0 15px rgba(255, 107, 107, 0.5);
        }
        
        .upload-btn:hover {
            transform: scale(1.05);
            box-shadow: 0 0 25px rgba(255, 107, 107, 0.8);
        }
        
        @keyframes gradient {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        
        #songTitle {
            margin-top: 15px;
            font-size: 20px;
            color: #ff8e8e;
            text-shadow: 0 0 10px rgba(255, 142, 142, 0.5);
            font-weight: bold;
        }
        
        .love-quote {
            position: absolute;
            bottom: 20px;
            color: rgba(255, 255, 255, 0.8);
            font-style: italic;
            text-align: center;
            width: 100%;
            z-index: 2;
        }
        
        .floating-hearts {
            position: absolute;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
        }
        
        @keyframes float {
            0% { transform: translateY(0) rotate(0deg); opacity: 1; }
            100% { transform: translateY(-100vh) rotate(360deg); opacity: 0; }
        }