/* Ambient Glow / Mouse Spotlight Effect */
.spotlight {
    background: radial-gradient(800px circle at var(--x) var(--y), rgba(124, 58, 237, 0.08), transparent 40%);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 40;
    transition: opacity 0.3s;
}