@keyframes breathing{0%{transform:scale(1);box-shadow:0 4px 12px rgba(34,197,94,.1)}50%{transform:scale(1.05);box-shadow:0 8px 24px rgba(34,197,94,.15)}to{transform:scale(1);box-shadow:0 4px 12px rgba(34,197,94,.1)}}.breathing-icon{animation:breathing 3s cubic-bezier(.4,0,.2,1) infinite;backdrop-filter:blur(8px)}.social-btn-new{display:flex;align-items:center;justify-content:center;width:3rem;height:3rem;border-radius:.75rem;border:1px solid #e5e7eb;background-color:rgba(255,255,255,.9);backdrop-filter:blur(4px);box-shadow:0 1px 2px rgba(0,0,0,.05);transition:all .2s ease}.social-btn-new:hover{transform:scale(1.05);box-shadow:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -1px rgba(0,0,0,.06)}.social-btn-new:focus{outline:none;box-shadow:0 0 0 2px rgba(34,197,94,.2)}.social-btn-google:hover{border-color:#fecaca;background-color:rgba(254,242,242,.5)}.social-btn-facebook:hover{border-color:#bfdbfe;background-color:rgba(239,246,255,.5)}.social-btn-github:hover{border-color:#d1d5db;background-color:rgba(249,250,251,.5)}.card-lift{transition:transform .2s ease;box-shadow:0 4px 12px rgba(0,0,0,.05)}.card-lift:hover{transform:translateY(-2px)}