.not-found-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;background:linear-gradient(135deg,#f5f7fa,#c3cfe2)}.not-found-content{text-align:center;max-width:600px;padding:3rem;background:white;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.1)}.not-found-content h1{font-size:8rem;font-weight:800;margin:0;background:linear-gradient(135deg,#10b981,#059669);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.not-found-content h2{font-size:2rem;margin:1rem 0;color:#1a202c}.not-found-content p{font-size:1.1rem;color:#4a5568;margin-bottom:2rem}.not-found-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.btn-primary,.btn-secondary{padding:12px 24px;border-radius:8px;font-weight:600;text-decoration:none;display:inline-block;transition:all .3s ease;border:none;cursor:pointer;font-size:1rem}.btn-primary{background:linear-gradient(135deg,#10b981,#059669);color:white}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(16,185,129,.4)}.btn-secondary{background:#e2e8f0;color:#4a5568}.btn-secondary:hover{background:#cbd5e0;transform:translateY(-2px)}