.scroll-to-top{position:fixed;bottom:2rem;right:2rem;width:50px;height:50px;background:var(--vert-activelec);color:white;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(67,104,77,0.3);transition:all 0.3s ease;opacity:0;visibility:hidden;transform:translateY(10px);z-index:9999}.scroll-to-top.visible{opacity:1;visibility:visible;transform:translateY(0)}.scroll-to-top:hover{background:var(--jaune-activelec);transform:translateY(-4px);box-shadow:0 6px 20px rgba(219,185,83,0.4)}.scroll-to-top:active{transform:translateY(-2px)}.scroll-to-top svg{width:24px;height:24px}@media (max-width:768px){.scroll-to-top{bottom:1.5rem;right:1.5rem;width:44px;height:44px}.scroll-to-top svg{width:20px;height:20px}}