.nf-step{display:none}.nf-step.on{display:block}
.nf-q{font-size:16px;font-weight:600;color:#111;margin:0 0 1.25rem;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
.nf-opts{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.nf-opt{padding:14px 16px;border:1px solid #e5e7eb;border-radius:8px;cursor:pointer;background:#fff;text-align:left;transition:border-color .15s,background .15s;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
.nf-opt:hover{background:#f9fafb}
.nf-opt.sel{border:2px solid #1d4ed8;background:#eff6ff}
.nf-opt .ot{font-size:14px;font-weight:500;color:#111;margin:0 0 2px}
.nf-opt.sel .ot{color:#1d4ed8}
.nf-opt .os{font-size:12px;color:#6b7280;margin:0}
.nf-prog{display:flex;gap:6px;margin-bottom:1.5rem}
.nf-dot{flex:1;height:4px;border-radius:2px;background:#e5e7eb}
.nf-dot.done{background:#93c5fd}
.nf-dot.active{background:#003153}
.nf-nav{display:flex;justify-content:space-between;align-items:center;margin-top:1.25rem}
.nf-card{background:#fff;border:1px solid #e5e7eb;border-radius:10px;padding:1.25rem;margin-bottom:12px;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
.nf-card.top{border:2px solid #1d4ed8}
.nf-badge{display:inline-block;font-size:11px;padding:3px 10px;border-radius:6px;font-weight:600;margin-bottom:8px}
.nf-b1{background:#eff6ff;color:#1d4ed8}
.nf-b2{background:#f0fdf4;color:#15803d}
.nf-b3{background:#f9fafb;color:#6b7280}
.nf-bar{height:6px;border-radius:3px;background:#f3f4f6;margin-bottom:12px;overflow:hidden}
.nf-bar-fill{height:100%;border-radius:3px;background:#003153}
.nf-nh{font-size:17px;font-weight:600;color:#111;margin:0 0 4px}
.nf-sub{font-size:13px;color:#6b7280;margin:0 0 10px}
.nf-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:12px}
.nf-tag{font-size:11px;padding:3px 8px;border-radius:6px;background:#f3f4f6;color:#6b7280}
.nf-stats{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-bottom:12px}
.nf-stat{text-align:center;padding:8px;background:#f9fafb;border-radius:6px}
.nf-stat .sv{font-size:14px;font-weight:600;color:#111}
.nf-stat .sl{font-size:11px;color:#6b7280;margin-top:2px}
button.nf-start{background:#003153;color:#C9A84C;border:none;border-radius:6px;padding:12px 32px;font-size:15px;font-weight:600;cursor:pointer;font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
button.nf-next-btn{background:#003153;color:#C9A84C;border:none;border-radius:6px;padding:8px 20px;font-size:13px;font-weight:600;cursor:pointer;font-family:inherit}
button.nf-back-btn{font-size:13px;color:#6b7280;background:none;border:none;cursor:pointer;padding:0;font-family:inherit}
button.nf-restart{font-size:13px;color:#6b7280;background:none;border:1px solid #e5e7eb;border-radius:6px;padding:7px 14px;cursor:pointer;font-family:inherit}