.nf-root{min-height:100vh;background:var(--color-surface-elevated);display:flex;align-items:center;justify-content:center;color:var(--color-text-secondary);padding:2rem}.nf-inner{text-align:center;max-width:480px}.nf-icon{width:80px;height:80px;border-radius:20px;background:var(--color-surface-overlay);border:1px solid var(--color-border-strong);display:flex;align-items:center;justify-content:center;margin:0 auto 2rem;color:var(--color-text-secondary)}.nf-code{font-size:5rem;font-weight:800;line-height:1;background:linear-gradient(135deg,var(--color-surface-inverse),var(--color-text-muted));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem}.nf-title{font-size:1.25rem;font-weight:900;color:var(--color-text-primary);margin:0 0 .75rem}.nf-desc{font-size:.9rem;color:var(--color-text-muted);line-height:1.6;margin-bottom:2.5rem}.nf-actions{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}.nf-btn-primary{display:inline-flex;align-items:center;gap:.4rem;padding:.6rem 1.25rem;border-radius:9px;background:var(--color-surface-inverse);border:1px solid var(--color-border-strong);color:var(--color-text-inverse);font-weight:500;font-size:.85rem;text-decoration:none;transition:background .15s}.nf-btn-primary:hover{filter:brightness(.9)}.nf-btn-ghost{display:inline-flex;align-items:center;gap:.4rem;padding:.6rem 1.25rem;border-radius:9px;background:transparent;border:1px solid var(--color-border);color:var(--color-text-muted);font-weight:500;font-size:.85rem;text-decoration:none;transition:border-color .15s}.nf-btn-ghost:hover{border-color:var(--color-border-strong);color:var(--color-text-muted)}