html, body {
    background:
        radial-gradient(circle at 18% 26%, rgba(63, 92, 112, 0.48), transparent 30%),
        radial-gradient(circle at 78% 70%, rgba(116, 93, 52, 0.38), transparent 34%),
        linear-gradient(135deg, #25333a 0%, #182025 44%, #332f29 100%) !important;
}

body::before {
    position: fixed;
    inset: 0;
    background:
        linear-gradient(112deg, transparent 0 18%, rgba(255,255,255,.035) 18.2% 18.5%, transparent 18.7% 100%),
        repeating-linear-gradient(90deg, transparent 0 115px, rgba(255,255,255,.018) 116px 117px);
    content: "";
}

.app { backdrop-filter: blur(4px); }