/* Torch Effect for 3D Dungeon */
#torch-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    /* Initially hidden or default state */
    background: radial-gradient(circle 300px at 50% 50%, transparent 0%, rgba(0, 0, 0, 0.95) 100%);
    mix-blend-mode: multiply;
}

/* Glitch Effect for Happy New Fear */
/* Constant VHS Overlay */
.vhs-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9998;
    background:
        /* Scanlines */
        linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.1) 50%),
        /* Noise */
        radial-gradient(rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    background-size: 100% 3px, 100% 100%;
    animation: vhs-flicker 0.15s infinite;
}

/* Tracking Error Glitch (triggered by JS) */
.glitch-active body {
    animation: vhs-tracking 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) both infinite;
}

.glitch-active body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.02);
    z-index: 9999;
    pointer-events: none;
    animation: vhs-noise 0.2s infinite;
}

@keyframes vhs-flicker {
    0% {
        opacity: 0.95;
    }

    50% {
        opacity: 0.85;
    }

    100% {
        opacity: 0.95;
    }
}

@keyframes vhs-tracking {
    0% {
        transform: skew(0deg);
    }

    20% {
        transform: skew(-0.5deg) translateX(-2px);
    }

    40% {
        transform: skew(0.5deg) translateX(2px);
    }

    60% {
        transform: skew(-0.2deg);
    }

    80% {
        transform: skew(0.2deg);
    }

    100% {
        transform: skew(0deg);
    }
}

@keyframes vhs-noise {

    0%,
    100% {
        transform: translate(0, 0);
    }

    10% {
        transform: translate(-1%, -1%);
    }

    20% {
        transform: translate(1%, 1%);
    }

    30% {
        transform: translate(-2%, 2%);
    }

    40% {
        transform: translate(2%, -2%);
    }

    50% {
        transform: translate(-1%, 1%);
    }

    60% {
        transform: translate(1%, -1%);
    }

    70% {
        transform: translate(2%, 2%);
    }

    80% {
        transform: translate(-2%, -2%);
    }

    90% {
        transform: translate(1%, 1%);
    }
}