.scroll-top-btn{position:fixed;bottom:1.5rem;left:1.5rem}@media (max-width:1023px){.scroll-top-btn{top:5rem;bottom:auto;left:1rem}}.scroll-top-btn{z-index:50;background-color:var(--color-primary-blue);color:#fff;cursor:pointer;width:3rem;height:3rem;transition:background-color var(--transition-base);border:none;border-radius:9999px;justify-content:center;align-items:center;display:flex;overflow:hidden;box-shadow:0 4px 14px #1c77b773}.scroll-top-btn:hover{background-color:var(--color-secondary-cyan)}.scroll-top-plane{z-index:1;width:1.5rem;height:1.5rem;transition:transform .4s;position:relative}.scroll-top-plane.flying{animation:.5s cubic-bezier(.4,0,.2,1) forwards plane-fly}.scroll-top-plane.landing{animation:.6s cubic-bezier(.34,1.56,.64,1) forwards plane-land}@keyframes plane-fly{0%{opacity:1;transform:translateY(0)scale(1)}60%{opacity:.6;transform:translateY(-28px)scale(1.15)}to{opacity:0;transform:translateY(-48px)scale(1.1)}}@keyframes plane-land{0%{opacity:0;transform:translateY(-48px)scale(1.1)}40%{opacity:1;transform:translateY(4px)scale(.95)}70%{transform:translateY(-4px)scale(1.02)}to{opacity:1;transform:translateY(0)scale(1)}}.scroll-top-lines{pointer-events:none;flex-direction:column;justify-content:flex-end;align-items:center;gap:3px;padding-bottom:4px;display:flex;position:absolute;inset:0}.scroll-top-lines span{opacity:0;background:#ffffffb3;border-radius:9999px;width:2px;height:0;animation:.7s ease-in-out infinite speed-line}.scroll-top-lines span:first-child{animation-delay:0s}.scroll-top-lines span:nth-child(2){animation-delay:.1s}.scroll-top-lines span:nth-child(3){animation-delay:.2s}@keyframes speed-line{0%{opacity:0;height:0}35%{opacity:1;height:10px}65%{opacity:.5;height:14px}to{opacity:0;height:0}}