.scroll-to-top-btn{position:fixed;bottom:max(1.5rem,env(safe-area-inset-bottom,0px));right:max(1.5rem,env(safe-area-inset-right,0px));z-index:60;display:flex;align-items:center;justify-content:center;width:2.75rem;height:2.75rem;border-radius:50%;background:linear-gradient(135deg,#fbbf24,#fb923c 55%,#ea580c);border:1px solid rgba(251,146,60,.75);box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 6px 22px rgba(251,146,60,.38),0 0 18px rgba(251,146,60,.2);color:#1a0a00;cursor:pointer;opacity:1;transform:translateY(0) scale(1);transition:opacity .26s cubic-bezier(.22,1,.36,1),transform .26s cubic-bezier(.22,1,.36,1),background .2s ease,border-color .2s ease,box-shadow .2s ease}.scroll-to-top-btn[aria-hidden=true]{opacity:0;transform:translateY(10px) scale(.88)}@media (hover:hover){.scroll-to-top-btn:hover{background:linear-gradient(135deg,#fcd34d,#fb923c 52%,#f97316);border-color:rgba(252,211,77,.9);box-shadow:inset 0 1px 0 rgba(255,255,255,.45),0 8px 28px rgba(251,146,60,.52),0 0 24px rgba(251,146,60,.28);transform:translateY(-2px) scale(1.06)}}.scroll-to-top-btn:focus-visible{outline:none;box-shadow:0 0 0 2px var(--bg-base),0 0 0 4px rgba(251,146,60,.65),0 0 18px rgba(251,146,60,.3)}.scroll-to-top-btn:active:not([aria-hidden=true]){transform:translateY(0) scale(.96)}.scroll-to-top-btn svg{width:1rem;height:1rem;display:block}html[data-theme=light] .scroll-to-top-btn{box-shadow:inset 0 1px 0 rgba(255,255,255,.4),0 4px 16px rgba(234,88,12,.35)}@media (hover:hover){html[data-theme=light] .scroll-to-top-btn:hover{box-shadow:inset 0 1px 0 rgba(255,255,255,.5),0 8px 28px rgba(234,88,12,.48),0 0 20px rgba(234,88,12,.22)}}@media (prefers-reduced-motion:reduce){.scroll-to-top-btn,.scroll-to-top-btn[aria-hidden=true]{transition:opacity .18s ease;transform:none!important}}