basisvr.github.io/styles.css at main · BasisVR/basisvr.github.io · GitHub

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/* =========================
   Text Selection Highlight
   ========================= */
::selection {
    background: rgba(239, 18, 55, 0.25); /* brand red at 25% */
}

::-moz-selection {
    background: rgba(239, 18, 55, 0.25);
}

/* =========================
   Backdrop
   ========================= */
.site-bg {
    --site-bg-0: #c1caff;
    --site-bg-1: #b1d8ff;
    --site-bg-2: #d6b4fb;
    --site-bg-3: #f6a5c6;
    --site-bg-4: #f2bfc9;
    --site-bg-5: #b9d0fe;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100lvh;
    z-index: -30;
    overflow: hidden;
    pointer-events: none;
    background:
        radial-gradient(50% 60% at 12% 18%, var(--site-bg-1), transparent),
        radial-gradient(45% 55% at 88% 22%, var(--site-bg-2), transparent),
        radial-gradient(55% 60% at 78% 88%, var(--site-bg-3), transparent),
        radial-gradient(45% 55% at 20% 85%, var(--site-bg-4), transparent),
        var(--site-bg-0);
}

.dark .site-bg {
    --site-bg-0: #232a6a;
    --site-bg-1: #12386d;
    --site-bg-2: #3a1766;
    --site-bg-3: #580d3d;
    --site-bg-4: #5a273b;
    --site-bg-5: #1d306d;
}

.site-bg > canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease;
}

.site-bg.is-ready > canvas {
    opacity: 1;
}

/* =========================
   Backdrop Dither
   ========================= */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0.01;
    background-image: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20width='160'%20height='160'%3E%3Cfilter%20id='d'%20x='0'%20y='0'%20width='100%25'%20height='100%25'%20color-interpolation-filters='sRGB'%3E%3CfeTurbulence%20type='fractalNoise'%20baseFrequency='0.85'%20numOctaves='2'%20stitchTiles='stitch'/%3E%3CfeColorMatrix%20type='saturate'%20values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncR%20type='linear'%20slope='3'%20intercept='-1'/%3E%3CfeFuncG%20type='linear'%20slope='3'%20intercept='-1'/%3E%3CfeFuncB%20type='linear'%20slope='3'%20intercept='-1'/%3E%3CfeFuncA%20type='linear'%20slope='0'%20intercept='1'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect%20width='160'%20height='160'%20filter='url(%23d)'/%3E%3C/svg%3E");
    background-size: 160px 160px;
    background-repeat: repeat;
    will-change: transform; /* own layer: rasterize the noise tile once, then composite */
}