body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background-color: #111;
    overflow: hidden;
    cursor: none;
}

#pillars-container {
    width: 100vw;
    height: 100vh;
    position: relative;
    /* Soft floor lighting */
    background: radial-gradient(circle at var(--lx, 50%) var(--ly, 50%), #333 0%, #000 70%);
}

.pillar {
    position: absolute;
    width: 40px;
    height: 40px;
    background: #222;
    border: 1px solid #444;
    border-radius: 5px;
    transform: translate(-50%, -50%);
    z-index: 10;
}

.light-source {
    position: absolute;
    width: 20px;
    height: 20px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 0 50px #fff, 0 0 100px #ffaa00;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 20;
}