body::before{content:'';position:fixed;inset:-50%;z-index:var(--z-background);pointer-events:none;animation:byrGradientShiftDark var(--bg-rotation-duration) linear infinite,byrPulse var(--bg-pulse-duration) ease-in-out infinite}@keyframes byrGradientShiftDark{0%{background:linear-gradient(165deg,var(--bg-deep-1) var(--bg-stop-1),var(--bg-deep-2) var(--bg-stop-2),var(--bg-deep-3) var(--bg-stop-3),var(--bg-deep-4) var(--bg-stop-4))}50%{background:linear-gradient(255deg,var(--bg-deep-1) var(--bg-stop-1),var(--bg-deep-2) var(--bg-stop-2),var(--bg-deep-3) var(--bg-stop-3),var(--bg-deep-4) var(--bg-stop-4))}100%{background:linear-gradient(345deg,var(--bg-deep-1) var(--bg-stop-1),var(--bg-deep-2) var(--bg-stop-2),var(--bg-deep-3) var(--bg-stop-3),var(--bg-deep-4) var(--bg-stop-4))}}.mode-light body::before{animation:none;background:linear-gradient(180deg,#FBFBFD 0%,#F6F7FA 100%)}@keyframes byrGradientShiftLight{0%{background:linear-gradient(165deg,var(--bg-light-1) var(--bg-stop-1),var(--bg-light-2) var(--bg-stop-2),var(--bg-light-3) var(--bg-stop-3),var(--bg-light-4) var(--bg-stop-4))}50%{background:linear-gradient(255deg,var(--bg-light-1) var(--bg-stop-1),var(--bg-light-2) var(--bg-stop-2),var(--bg-light-3) var(--bg-stop-3),var(--bg-light-4) var(--bg-stop-4))}100%{background:linear-gradient(345deg,var(--bg-light-1) var(--bg-stop-1),var(--bg-light-2) var(--bg-stop-2),var(--bg-light-3) var(--bg-stop-3),var(--bg-light-4) var(--bg-stop-4))}}@keyframes byrPulse{0%,100%{filter:brightness(1) saturate(1)}50%{filter:brightness(1.04) saturate(1.02)}}body::after{content:'';position:fixed;inset:-20%;z-index:calc(var(--z-background) + 0);pointer-events:none;mix-blend-mode:screen;background:radial-gradient(circle at 30% 40%,rgb(255 255 255 / .05),transparent 60%),radial-gradient(circle at 70% 65%,rgb(255 255 255 / .04),transparent 55%);animation:byrGlowDrift var(--bg-glow-duration) ease-in-out infinite}@keyframes byrGlowDrift{0%,100%{transform:translate(0,0);opacity:1}25%{transform:translate(3%,-2%);opacity:.85}50%{transform:translate(-2%,3%);opacity:.92}75%{transform:translate(1%,2%);opacity:.88}}#byr-starfield{position:fixed;inset:0;z-index:calc(var(--z-background) + 1);pointer-events:none;opacity:var(--starfield-opacity,1)}#byr-comets{position:fixed;inset:0;z-index:calc(var(--z-background) + 3);pointer-events:none}.mode-light #byr-starfield{opacity:.08}.mode-light #byr-comets{opacity:.15}@media (prefers-reduced-motion:reduce){body::before,body::after{animation:none;transform:none;filter:none}#byr-comets{display:none}#byr-starfield{opacity:.4}}.motion-reduced body::before,.motion-reduced body::after{animation:none;transform:none;filter:none}.motion-reduced #byr-comets{display:none}.motion-reduced #byr-starfield{opacity:.4}