/* 
=================================================================
FLASHING GLITCH EFFECT
Author: Antigravity AI
Description: Rhythmic Color to B&W transitions with distortion.
=================================================================
*/

.video-glitch-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 15; /* Above everything in the video container */
    pointer-events: none;
    animation: colorGlitch 12s infinite ease-in-out;
    background: transparent;
}

@keyframes colorGlitch {
    /* PHASE 1: COLOR (0s - 4s) */
    0% { backdrop-filter: grayscale(0); transform: scale(1) skew(0); }
    30% { backdrop-filter: grayscale(0); transform: scale(1) skew(0); }
    
    /* INTERCHANGE 1: DISTORTION SHOCK (4s) */
    31% { backdrop-filter: grayscale(100%) contrast(300%) brightness(1.5); transform: scale(1.1) skew(10deg); }
    32% { backdrop-filter: grayscale(0%) contrast(100%) brightness(1); transform: scale(1.05) skew(-10deg); }
    33% { backdrop-filter: grayscale(100%) contrast(300%) brightness(1.5); transform: scale(1.1) skew(5deg); }
    34% { backdrop-filter: grayscale(100%); transform: scale(1) skew(0); }

    /* PHASE 2: BLACK & WHITE (4s - 8s) */
    35% { backdrop-filter: grayscale(100%); }
    65% { backdrop-filter: grayscale(100%); }

    /* INTERCHANGE 2: DISTORTION SHOCK (8s) */
    66% { backdrop-filter: grayscale(0%) contrast(300%) brightness(1.5); transform: scale(1.1) skew(-10deg); }
    67% { backdrop-filter: grayscale(100%) contrast(100%) brightness(1); transform: scale(1.05) skew(10deg); }
    68% { backdrop-filter: grayscale(0%) contrast(300%) brightness(1.5); transform: scale(1.1) skew(-5deg); }
    69% { backdrop-filter: grayscale(0%); transform: scale(1) skew(0); }

    /* PHASE 3: COLOR (8s - 12s) */
    70% { backdrop-filter: grayscale(0); }
    100% { backdrop-filter: grayscale(0); }
}

/* Optional: Subtle 2026 Noise to keep at 5% as it pairs well with glitch */
.video-glitch-overlay::before {
    content: "";
    position: absolute;
    top: -100%;
    left: -100%;
    width: 300%;
    height: 300%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.05;
    animation: grainMove 8s steps(10) infinite;
    pointer-events: none;
}

@keyframes grainMove {
    0%, 100% { transform: translate(0, 0); }
    10% { transform: translate(-5%, -10%); }
    50% { transform: translate(-15%, -10%); }
    90% { transform: translate(-10%, 10%); }
}