.back-to-top{--btt-navy:#001f42;--btt-gold:#b28b46;z-index:40;right:calc(24px + env(safe-area-inset-right,0px));bottom:calc(24px + env(safe-area-inset-bottom,0px));background:var(--btt-navy);color:#fff;cursor:pointer;opacity:0;visibility:hidden;pointer-events:none;border:none;border-radius:50%;justify-content:center;align-items:center;width:52px;height:52px;padding:0;transition:opacity .22s,transform .22s,visibility .22s,background-color .18s,color .18s;display:inline-flex;position:fixed;transform:translateY(10px)}.back-to-top.is-visible{opacity:1;visibility:visible;pointer-events:auto;transform:none}.back-to-top__icon{width:18px;height:12px;display:block;transform:rotate(-90deg)}.back-to-top:focus-visible{outline:2px solid var(--btt-gold);outline-offset:3px}@media (hover:hover) and (pointer:fine){.back-to-top:hover{background:var(--btt-gold);color:#fff}}@media (max-width:720px){.back-to-top{right:calc(16px + env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));width:46px;height:46px}}@media (prefers-reduced-motion:reduce){.back-to-top{transition:none;transform:none}}