:root {
    --neon-cyan: #00f2ff;
    --neon-pink: #ff007f;
}

body {
    margin: 0;
    padding: 0;
    background: #000;
    color: white;
    font-family: 'Orbitron', sans-serif;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

#ui-container {
    position: absolute;
    top: 20px;
    width: 100%;
    text-align: center;
    pointer-events: none;
    z-index: 10;
}

.stats {
    font-size: 1.5rem;
    color: var(--neon-cyan);
    text-shadow: 0 0 10px var(--neon-cyan);
}

#game-over {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(10, 10, 20, 0.9);
    padding: 40px;
    border: 2px solid var(--neon-pink);
    box-shadow: 0 0 30px var(--neon-pink);
    pointer-events: all;
    border-radius: 15px;
}

.hidden { display: none; }

button {
    background: transparent;
    color: white;
    border: 2px solid var(--neon-cyan);
    padding: 10px 25px;
    font-family: 'Orbitron';
    cursor: pointer;
    margin-top: 15px;
    transition: 0.3s;
}

button:hover {
    background: var(--neon-cyan);
    color: black;
    box-shadow: 0 0 20px var(--neon-cyan);
}

canvas {
    display: block;
    box-shadow: 0 0 50px rgba(0, 242, 255, 0.1);
}