.back-to-top{position:fixed;bottom:var(--theme-352-space-8);right:var(--theme-352-space-8);z-index:var(--theme-352-z-fixed);display:flex;align-items:center;justify-content:center;width:48px;height:48px;padding:0;background:var(--theme-352-primary);color:var(--theme-352-white);border:none;border-radius:50%;cursor:pointer;box-shadow:var(--theme-352-shadow-lg);opacity:0;visibility:hidden;transform:translateY(20px);transition:all var(--theme-352-transition-normal)}.back-to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}.back-to-top:hover{background:var(--theme-352-primary-dark);transform:translateY(-4px)}.back-to-top:focus{outline:2px solid var(--theme-352-accent);outline-offset:2px}@media (max-width:767px){.back-to-top{bottom:var(--theme-352-space-4);right:var(--theme-352-space-4);width:44px;height:44px}}@media (prefers-reduced-motion:reduce){.back-to-top{transition:none}}@media print{.back-to-top{display:none !important}}