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a{color:#a0aec0;text-decoration:none;transition:color .3s ease}.footer-links a:hover{color:#fff}.footer-tech{display:flex;flex-wrap:wrap;gap:.5rem}.footer-tech .tech-tag{background:#4a5568;color:#fff}.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:2rem;border-top:1px solid #4a5568;flex-wrap:wrap;gap:1rem}.footer-copyright p{color:#a0aec0;margin:.25rem 0}.back-to-top{background:#667eea;color:#fff;border:none;width:50px;height:50px;border-radius:50%;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;justify-content:center}.back-to-top:hover{background:#764ba2;transform:translateY(-2px)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}@keyframes 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