@property --atmos-x{syntax:"<percentage>";inherits:true;initial-value:62%}.stage-atmos{z-index:var(--z-stage);pointer-events:none;background:radial-gradient(60% 55% at var(--atmos-x,62%) 46%, #228cc81a, transparent 70%), radial-gradient(120% 90% at 50% 120%, #ff6a2b0b, transparent 60%), radial-gradient(140% 120% at 50% 40%, transparent 55%, #0000008c 100%);transition:--atmos-x 1.2s var(--ease-in-out);position:fixed;inset:0}.stage-host{z-index:var(--z-stage);pointer-events:none;transition:opacity .36s;position:fixed;inset:0}.stage-host canvas{width:100%;height:100%}