footer{padding:2rem;background:transparent;border-top:1px solid var(--border-color)}.footer-content{max-width:1100px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.footer-links{display:flex;gap:2rem}.footer-links a{color:var(--text-muted);text-decoration:none;font-size:.875rem;transition:color .25s var(--smooth),transform .2s ease;position:relative;display:inline-flex;align-items:center;gap:.3rem}.footer-links a:after{content:"";position:absolute;bottom:-2px;left:50%;width:0;height:1px;background:var(--text-primary);transition:width .3s var(--spring),left .3s var(--spring)}.footer-links a:hover{color:var(--text-primary)}.footer-links a:hover:after{width:100%;left:0}.footer-copy{color:var(--text-muted);font-size:.75rem}.back-to-top{position:fixed;bottom:2rem;right:2rem;width:44px;height:44px;border-radius:50%;background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:999;opacity:0;transform:translateY(20px);transition:opacity .3s ease,transform .3s var(--spring),background .2s ease,color .2s ease;pointer-events:none}.back-to-top.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}.back-to-top:hover{background:var(--text-primary);color:var(--bg-primary)}@media(max-width:768px){footer{padding:2rem 1rem}.footer-content{flex-direction:column;align-items:center;text-align:center;gap:1.5rem}.footer-links{flex-direction:column;gap:1rem;width:100%}.footer-links a{width:100%;justify-content:center;padding:.5rem 0}.footer-copy{margin-top:1rem;font-size:.7rem}.back-to-top{bottom:1rem;right:1rem}}