/* Shared long-page shortcut; cart keeps its own bottom-right space. */
.back-to-top{position:fixed;z-index:35;left:max(16px,env(safe-area-inset-left));bottom:max(20px,env(safe-area-inset-bottom));display:flex;align-items:center;gap:7px;min-width:64px;min-height:48px;padding:10px 14px;border:1px solid var(--line,#dedfd9);border-radius:26px;background:var(--paper,#fff);color:var(--ink,#242522);box-shadow:0 3px 14px #2425221a;font-size:.8125rem}
.back-to-top[hidden]{display:none}.back-to-top span:first-child{font-size:1.3rem}.back-to-top:hover{border-color:var(--red,#a52b23);color:var(--red,#a52b23)}body:has(dialog[open]) .back-to-top{visibility:hidden}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}