.car-key-animation{display:inline-block;animation:float 3s ease-in-out infinite}.car-key-icon{transform:rotate(45deg);transition:transform .3s ease;filter:drop-shadow(0 0 2px rgba(255,255,255,.5))}.scroll-to-top-button{box-shadow:0 4px 15px #4f46e566;overflow:hidden;position:relative;transform:translateZ(0);will-change:transform;backface-visibility:hidden;-webkit-backface-visibility:hidden}.scroll-to-top-button:after{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,#fff3,#fff0 70%);opacity:0;transition:opacity .3s}.scroll-to-top-button:hover:after{opacity:1}.scroll-to-top-button:hover .car-key-icon{transform:rotate(90deg) scale(1.2);filter:drop-shadow(0 0 4px rgba(255,255,255,.7))}.scroll-to-top-button:active{transform:translateY(2px)}@keyframes float{0%{transform:translateY(0) translateZ(0)}50%{transform:translateY(-5px) translateZ(0)}to{transform:translateY(0) translateZ(0)}}@keyframes pulse{0%{opacity:1;filter:drop-shadow(0 0 2px rgba(255,255,255,.5))}50%{opacity:.8;filter:drop-shadow(0 0 5px rgba(255,255,255,.8))}to{opacity:1;filter:drop-shadow(0 0 2px rgba(255,255,255,.5))}}