html[data-season] body{background-color:var(--season-canvas);color:var(--season-text)}html[data-season]{--igradient:linear-gradient(115deg, var(--season-glow), var(--season-accent) 55%, var(--season-glow))}.seasonal-art{pointer-events:none;z-index:40;width:clamp(72px,12vw,150px);filter:drop-shadow(0 8px 20px color-mix(in srgb, var(--season-glow) 24%, transparent));position:fixed;bottom:20px;right:12px}.seasonal-art img{width:100%;height:auto}@media (prefers-reduced-motion:no-preference){.seasonal-art{animation:6s ease-in-out infinite seasonal-float}}@keyframes seasonal-float{0%,to{transform:translateY(0)rotate(-3deg)}50%{transform:translateY(-8px)rotate(3deg)}}@media print{.seasonal-art{display:none}}html[data-season] body:before{content:"";z-index:-1;pointer-events:none;background:radial-gradient(ellipse at 0% 20%, color-mix(in srgb, var(--season-glow) 10%, transparent), transparent 50%), radial-gradient(ellipse at 100% 90%, color-mix(in srgb, var(--season-accent) 9%, transparent), transparent 45%);position:fixed;inset:0}