/* ============================================
   CRT MONITOR EFFECT SETTINGS
   Adjust these variables to customize the effect
   ============================================ */
:root {
    /* Scanlines */
    --scanline-opacity: 0.05;      /* 0 = invisible, 1 = very dark (try 0.1 for stronger effect) */
    --scanline-spacing: 3px;       /* Distance between lines (try 2px for more lines) */
    --scanline-height: 1px;        /* Thickness of each line */
    
    /* Screen Flicker */
    --flicker-speed: 0.001s;        /* How fast the flicker animates (lower = faster) */
    --flicker-brightness-min: 0.99; /* Minimum brightness during flicker (lower = more noticeable, try 0.85) */
    --flicker-brightness-max: 1.01; /* Maximum brightness during flicker (higher = more noticeable, try 1.05) */
    
    /* Vignette (dark edges) */
    --vignette-opacity: 0.4;       /* 0 = no darkening, 1 = very dark edges */
    --vignette-size: 100%;         /* How far the darkness extends (lower = more pronounced) */
    
    /* Bloom (glow effect) */
    --bloom-strength: 2px;         /* Glow radius - try 3px or 4px for stronger bloom */
    --bloom-opacity: 0.2;          /* Glow intensity - 0 to 1 (try 0.8 for stronger glow) */

    /* RGB Channel Separation (Chromatic Aberration) */
    --rgb-offset: 1px;             /* Pixel offset for RGB channels (try 1-4px, higher = more pronounced) */
    --rgb-angle: 45deg;             /* Direction of offset: 0deg = horizontal, 90deg = vertical, 45deg = diagonal */

}

/* ============================================
   CRT EFFECT IMPLEMENTATION
   (Don't modify unless you know what you're doing)
   ============================================ */

/* Scanlines effect */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, var(--scanline-opacity)),
        rgba(0, 0, 0, var(--scanline-opacity)) var(--scanline-height),
        transparent var(--scanline-height),
        transparent var(--scanline-spacing)
    );
}

/* Vignette effect */
body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9998;
    background: radial-gradient(ellipse at center, 
        rgba(0, 0, 0, 0) 0%, 
        rgba(0, 0, 0, var(--vignette-opacity)) var(--vignette-size));
}

/* Screen flicker */
html {
    animation: flicker var(--flicker-speed) infinite !important;
}

/* Flicker animation */
@keyframes flicker {
    0% { filter: brightness(var(--flicker-brightness-min)) !important; }
    50% { filter: brightness(var(--flicker-brightness-max)) !important; }
    100% { filter: brightness(var(--flicker-brightness-min)) !important; }
}

/* Bloom glow effect - fixed layer at screen edges */
html::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9997;
    box-shadow: inset 0 0 calc(var(--bloom-strength) * 40) calc(var(--bloom-strength) * 10) rgba(255, 255, 255, var(--bloom-opacity));
}

/* RGB Channel Separation Effect (Chromatic Aberration) */
/* This creates the classic miscalibrated CRT look by offsetting RGB channels */

/* Create pseudo-elements for red and blue channel separation */
.window, .window-body, .icon, body {
    text-shadow:
        calc(cos(var(--rgb-angle)) * var(--rgb-offset)) calc(sin(var(--rgb-angle)) * var(--rgb-offset)) 0 rgba(255, 0, 0, 0.5),
        calc(cos(var(--rgb-angle)) * var(--rgb-offset) * -1) calc(sin(var(--rgb-angle)) * var(--rgb-offset) * -1) 0 rgba(0, 255, 255, 0.5);
}

/* Apply to taskbar elements specifically */
.innerclock, .startMenu, .clock {
    text-shadow:
        calc(cos(var(--rgb-angle)) * var(--rgb-offset)) calc(sin(var(--rgb-angle)) * var(--rgb-offset)) 0 rgba(255, 0, 0, 0.5),
        calc(cos(var(--rgb-angle)) * var(--rgb-offset) * -1) calc(sin(var(--rgb-angle)) * var(--rgb-offset) * -1) 0 rgba(0, 255, 255, 0.5);
    filter:
        drop-shadow(calc(cos(var(--rgb-angle)) * var(--rgb-offset)) calc(sin(var(--rgb-angle)) * var(--rgb-offset)) 0 rgba(255, 0, 0, 0.3))
        drop-shadow(calc(cos(var(--rgb-angle)) * var(--rgb-offset) * -1) calc(sin(var(--rgb-angle)) * var(--rgb-offset) * -1) 0 rgba(0, 255, 255, 0.3));
}

/* Apply chromatic aberration to images and other content */
img, .title-bar, button {
    filter:
        drop-shadow(calc(cos(var(--rgb-angle)) * var(--rgb-offset)) calc(sin(var(--rgb-angle)) * var(--rgb-offset)) 0 rgba(255, 0, 0, 0.3))
        drop-shadow(calc(cos(var(--rgb-angle)) * var(--rgb-offset) * -1) calc(sin(var(--rgb-angle)) * var(--rgb-offset) * -1) 0 rgba(0, 255, 255, 0.3));
}

/* Alternative method using a full-screen overlay with mix-blend-mode for more authentic look */
html::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9996;
    background:
        linear-gradient(90deg,
            rgba(255, 0, 0, 0.02) 0%,
            transparent 50%,
            rgba(0, 255, 255, 0.02) 100%);
    mix-blend-mode: screen;
}