:root{--primary:#26474e;--primary-light:rgba(38,71,78,.07);--primary-glow:rgba(38,71,78,.14);--text:#1f2937;--text-muted:#6b7280;--border:#e5e7eb;--bg:#fff;--surface:#f9fafb;--success-bg:#f0fdf4;--success-text:#166534;--error:#dc2626;--radius:12px;--radius-sm:8px;--spacing:1.5rem;--transition:0.18s ease}*,:after,:before{box-sizing:border-box}html{font-size:16px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica Neue,Arial,sans-serif;line-height:1.8;letter-spacing:.01em;color:var(--text);background:var(--surface);-webkit-font-smoothing:antialiased;margin:0}.nf-btn,body{font-size:1rem}.nf-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 1.5rem;border-radius:var(--radius-sm);font-family:inherit;cursor:pointer;transition:opacity var(--transition),background var(--transition);text-decoration:none;border:none;white-space:nowrap}.nf-btn:disabled{opacity:.45;cursor:not-allowed}.nf-btn-primary{background:var(--primary);color:#fff}.nf-btn-primary:hover:not(:disabled){opacity:.85}.nf-btn-secondary{background:transparent;color:var(--primary);border:1.5px solid var(--primary)}.nf-btn-secondary:hover:not(:disabled){background:var(--primary-light)}.nf-btn-ghost{background:transparent;color:var(--text-muted);border:1px solid var(--border)}.nf-btn-ghost:hover:not(:disabled){border-color:#bbb}.nf-btn-danger{background:transparent;color:var(--error);border:1.5px solid var(--error)}.nf-btn-danger:hover:not(:disabled){background:rgba(220,38,38,.05)}.nf-btn-sm{min-height:38px;font-size:.875rem;padding:0 1rem}.nf-btn-full{width:100%}.nf-field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:1.25rem}.nf-label{font-size:.875rem;font-weight:500;color:var(--text)}.nf-label-muted{font-size:.8rem;color:var(--text-muted)}.nf-input,.nf-select,.nf-textarea{padding:.75rem 1rem;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;font-family:inherit;color:var(--text);background:var(--bg);transition:border-color var(--transition),box-shadow var(--transition);outline:none;width:100%}.nf-input:focus,.nf-select:focus,.nf-textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}.nf-input::placeholder,.nf-textarea::placeholder{color:#9ca3af}.nf-textarea{resize:vertical;min-height:90px;line-height:1.6}.nf-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}.nf-card+.nf-card{margin-top:.65rem}.nf-success{background:var(--success-bg);color:var(--success-text);border-radius:var(--radius-sm);padding:.875rem 1rem;font-size:.9rem;line-height:1.5}.nf-error-text{color:var(--error);font-size:.875rem}.nf-empty{font-size:.9rem;line-height:1.8;text-align:center;padding:2.5rem 1.5rem;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);max-width:520px}.nf-empty,.nf-nav-link{color:var(--text-muted)}.nf-nav-link{display:flex;align-items:center;min-height:44px;padding:0 1.5rem;text-decoration:none;font-size:.875rem;border-left:3px solid transparent;transition:color var(--transition),background var(--transition);line-height:1.4}.nf-nav-link.active,.nf-nav-link:hover{color:var(--primary);background:var(--primary-light)}.nf-nav-link.active{border-left-color:var(--primary);font-weight:600}.nf-progress-bar{height:6px;background:var(--border);border-radius:99px;overflow:hidden}.nf-progress-fill{height:100%;background:var(--primary);border-radius:99px;transition:width .3s ease}.nf-h1{font-size:1.5rem;font-weight:400;line-height:1.3;margin:0 0 1.5rem}.nf-h1,.nf-h2{color:var(--primary)}.nf-h2{font-size:1rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin:0 0 1rem}.nf-body{font-size:1rem;line-height:1.8;color:var(--text)}.nf-muted{font-size:.875rem;color:var(--text-muted)}@media (max-width:640px){.nf-btn{min-height:52px}.nf-card{padding:1rem}.nf-h1{font-size:1.25rem}}