body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #050a10;
}

canvas {
    display: block;
    width: 100vw;
    height: 100vh;
}

#webgl-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#toggle-btn {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    padding: 12px 24px;
    border-radius: 30px;
    font-family: sans-serif;
    letter-spacing: 2px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    outline: none;
}

#toggle-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}