.site-back-to-top{right:max(var(--site-space-md), env(safe-area-inset-right,0px));bottom:max(var(--site-space-md), env(safe-area-inset-bottom,0px));z-index:90;border:1.5px solid var(--site-color-brand-mid);border-radius:var(--site-radius-full);color:#fff;background:var(--site-gradient-brand);width:3rem;height:3rem;box-shadow:var(--site-shadow-elevated);cursor:pointer;opacity:0;visibility:hidden;pointer-events:none;transition:opacity var(--site-transition-base), visibility var(--site-transition-base), transform var(--site-transition-base), box-shadow var(--site-transition-fast), border-color var(--site-transition-fast);justify-content:center;align-items:center;padding:0;display:inline-flex;position:fixed;transform:translateY(.5rem)}.site-back-to-top--visible{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.site-back-to-top:hover{border-color:var(--site-color-accent);box-shadow:var(--site-shadow-card-hover);transform:translateY(-2px)}.site-back-to-top:active{transform:translateY(0)}.site-back-to-top:focus-visible{outline:2px solid var(--site-color-focus);outline-offset:3px}.site-back-to-top__icon{stroke-width:2.25px;width:1.375rem;height:1.375rem}html.site-nav-open .site-back-to-top{opacity:0;visibility:hidden;pointer-events:none}@media (min-width:48rem){.site-back-to-top{right:max(var(--site-space-lg), env(safe-area-inset-right,0px));bottom:max(var(--site-space-lg), env(safe-area-inset-bottom,0px))}}