/* BassLab seasonal art direction — abstract, restrained, brand-led. No emoji decorations. */
.seasonal-trim{position:absolute;inset:0 0 auto;pointer-events:none;z-index:25;height:150px;overflow:hidden}
.seasonal-trim .seasonal-corner{position:absolute;top:70px;width:155px;height:155px;opacity:.48;pointer-events:none}
.seasonal-corner-left{left:0}.seasonal-corner-right{right:0;transform:scaleX(-1)}
/* Webs are thin linework integrated into the top corners, not emoji stickers. */
.seasonal-halloween .seasonal-corner{
 background:
 repeating-conic-gradient(from 0deg at 0 0,transparent 0deg 17deg,rgba(204,191,211,.28) 17.5deg 18deg,transparent 18.5deg 36deg),
 repeating-radial-gradient(circle at 0 0,transparent 0 25px,rgba(204,191,211,.26) 26px 27px,transparent 28px 49px);
 -webkit-mask-image:radial-gradient(circle at 0 0,#000 0 82%,transparent 98%);
 mask-image:radial-gradient(circle at 0 0,#000 0 82%,transparent 98%);
}
.seasonal-halloween .site-head{box-shadow:0 2px 22px rgba(249,2,131,.12)}
.seasonal-halloween main{background-image:radial-gradient(ellipse 300px 210px at 100% 0%,rgba(175,62,34,.055),transparent 80%)}
/* Christmas: restrained festive pinlights and a fine evergreen line. */
.seasonal-christmas .seasonal-corner{
 background:
 radial-gradient(circle at 16% 13%,#f90283 0 3px,transparent 4px),
 radial-gradient(circle at 38% 26%,#f5d68a 0 3px,transparent 4px),
 radial-gradient(circle at 61% 12%,#f2f1e9 0 2px,transparent 3px),
 radial-gradient(circle at 78% 35%,#f90283 0 3px,transparent 4px),
 linear-gradient(155deg,transparent 19%,rgba(31,102,78,.5) 19.5% 20%,transparent 20.5% 100%);
 filter:drop-shadow(0 0 7px rgba(249,2,131,.28));
}
.seasonal-christmas .site-head{box-shadow:0 2px 18px rgba(26,125,88,.13)}
/* New Year: elegant champagne-gold accents and understated confetti geometry. */
.seasonal-new_year .seasonal-corner{
 background:
 linear-gradient(24deg,transparent 20%,rgba(244,206,135,.5) 20% 22%,transparent 22%),
 linear-gradient(124deg,transparent 46%,rgba(249,2,131,.35) 46% 48%,transparent 48%),
 radial-gradient(circle at 28% 22%,#f5d68a 0 2px,transparent 3px),
 radial-gradient(circle at 57% 49%,#f5d68a 0 2px,transparent 3px),
 radial-gradient(circle at 81% 13%,#f90283 0 2px,transparent 3px);
}
.seasonal-new_year .site-head{box-shadow:0 2px 22px rgba(212,171,91,.12)}
@media(max-width:700px){
 .seasonal-trim{height:100px}.seasonal-trim .seasonal-corner{top:60px;width:90px;height:90px;opacity:.3}
}
@media(prefers-reduced-motion:reduce){.seasonal-trim *{animation:none!important;transition:none!important}}

/* v1.25.0: Anchor seasonal corner artwork to the actual header, not a fixed page offset. */
header.site-shell{position:relative}
header.site-shell .seasonal-trim{position:absolute;inset:0 0 auto;height:0;overflow:visible}
header.site-shell .seasonal-trim .seasonal-corner{top:0}
@media(max-width:700px){header.site-shell .seasonal-trim .seasonal-corner{top:0}}