.back-to-top.svelte-1exoem2{--btt-bg: var(--marketing-surface);--btt-bg-hover: var(--marketing-surface-strong);--btt-ink: var(--text-secondary, var(--marketing-text-muted));--btt-ink-hover: var(--text-primary, var(--marketing-text));--btt-shadow: 0 4px 16px rgba(0, 0, 0, .3);--btt-shadow-hover: 0 6px 20px rgba(0, 0, 0, .4);position:fixed;bottom:var(--space-xl);right:var(--space-xl);z-index:var(--z-back-to-top);width:44px;height:44px;border-radius:50%;border:1px solid var(--hairline, var(--border-subtle));background:var(--btt-bg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:var(--btt-ink);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:var(--font-size-base);transition:opacity .3s ease,transform .3s ease,background .2s ease;outline:none;box-shadow:var(--btt-shadow)}.back-to-top.svelte-1exoem2:hover{background:var(--btt-bg-hover);color:var(--btt-ink-hover);transform:translateY(-2px);box-shadow:var(--btt-shadow-hover)}.back-to-top.svelte-1exoem2:focus-visible{box-shadow:0 0 0 2px color-mix(in srgb,var(--color-teal) 50%,transparent)}.back-to-top.svelte-1exoem2:active{transform:translateY(0)}:root:not([data-theme=dark]) .back-to-top.svelte-1exoem2{--btt-bg: rgba(255, 255, 255, .92);--btt-bg-hover: #ffffff;--btt-ink-hover: var(--brand-primary-light);--btt-shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 10px 24px -12px rgba(15, 52, 60, .3);--btt-shadow-hover: 0 1px 2px rgba(15, 23, 42, .06), 0 14px 30px -12px rgba(15, 52, 60, .36)}@media(max-width:640px){.back-to-top.svelte-1exoem2{bottom:var(--space-md);right:var(--space-md);width:40px;height:40px}.back-to-top.svelte-1exoem2:before{content:"";position:absolute;inset:-2px;border-radius:50%}}