.notfound-page{background:linear-gradient(165deg,#f0f4f8 0%,#e2ecf3 50%,#d7e5f0 100%);justify-content:center;align-items:center;min-height:80vh;padding:2rem;display:flex}.notfound-content{text-align:center;max-width:520px}.notfound-badge{font-family:var(--font-heading);background:var(--aiida-gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:1rem;font-size:8rem;font-weight:700;line-height:1;animation:3s ease-in-out infinite notfound-pulse}@keyframes notfound-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.8;transform:scale(1.03)}}.notfound-heading{font-family:var(--font-heading);color:var(--text-main);margin-bottom:.75rem;font-size:2rem}.notfound-text{color:var(--text-muted);margin-bottom:2rem;font-size:1.05rem;line-height:1.6}.notfound-actions{flex-wrap:wrap;justify-content:center;gap:1rem;display:flex}.notfound-btn{min-width:160px}@media (max-width:600px){.notfound-badge{font-size:5rem}.notfound-heading{font-size:1.6rem}.notfound-actions{flex-direction:column;align-items:center}}