* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    overflow: hidden;
    font-family: Arial, sans-serif;
    background: #050816;
    height: 100vh;
}

.background {
    position: fixed;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 20%, #1f4fff 0%, transparent 30%),
        radial-gradient(circle at 80% 60%, #ff00cc 0%, transparent 30%),
        radial-gradient(circle at 50% 90%, #00ffcc 0%, transparent 25%);
    filter: blur(100px);
    animation: pulse 8s infinite alternate;
}

@keyframes pulse {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.2);
    }
}

.container {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    padding-top: 50px;
}

h1 {
    margin-bottom: 20px;
    font-size: 42px;
}

.score {
    font-size: 30px;
    margin-bottom: 30px;
}

#ball {
    position: absolute;
    width: 90px;
    height: 90px;
    border-radius: 50%;
    cursor: pointer;

    background:
        radial-gradient(circle at 30% 30%, #fff, #00d4ff);

    box-shadow:
        0 0 30px #00d4ff,
        0 0 60px #00d4ff;

    transition: transform 0.1s;
}

#ball:hover {
    transform: scale(1.15);
}

#restart {
    margin-top: 500px;
    padding: 15px 30px;
    border: none;
    border-radius: 12px;
    background: #00d4ff;
    color: black;
    font-size: 18px;
    cursor: pointer;
}