.not-found{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100vh;text-align:center}.not-found h1{font-size:6rem;color:var(--color-primary);margin:0}.not-found p{font-size:1.5rem;color:var(--text-secondary);margin:var(--spacing-md) 0 var(--spacing-xl)}.back-link{padding:var(--spacing-sm) var(--spacing-lg);background:var(--color-primary);color:var(--text-inverse);border-radius:var(--border-radius);text-decoration:none;font-weight:500}.back-link:hover{background:var(--color-primary-dark);text-decoration:none}