body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: #050510;
    overflow: hidden;
    font-family: 'Segoe UI', sans-serif;
}

#visualizer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.controls {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
    z-index: 10;
    transition: opacity 0.8s ease, visibility 0.8s;
}

.controls.fade-out {
    opacity: 0;
    visibility: hidden;
}

h1 {
    font-size: 3rem;
    letter-spacing: 5px;
    text-shadow: 0 0 20px #00f2fe;
}

p {
    margin-bottom: 30px;
    opacity: 0.7;
}

button {
    padding: 15px 40px;
    font-size: 1.2rem;
    background: linear-gradient(45deg, #ff0055, #00f2fe);
    border: none;
    border-radius: 50px;
    color: white;
    cursor: pointer;
    font-weight: bold;
    box-shadow: 0 0 20px rgba(0, 242, 254, 0.5);
    transition: 0.3s;
}

button:hover {
    transform: scale(1.1);
    box-shadow: 0 0 40px rgba(255, 0, 85, 0.7);
}