:root{--bg:#0a0a0a;--bg-elev:#141414;--bg-elev-2:#1d1d1d;--border:#2a2a2a;--text:#f0f0f0;--text-muted:#888;--accent:#4f8cff;--accent-hover:#6ea0ff;--success:#4ade80;--warning:#fbbf24;--error:#f87171;--radius:8px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body,html{background:var(--bg);color:var(--text);font-family:var(--font);min-height:100vh;-webkit-font-smoothing:antialiased}.app-shell{max-width:720px;margin:0 auto;padding:24px 16px 64px}h1{font-size:28px;margin-bottom:8px}h1,h2{font-weight:600}h2{font-size:20px}h2,p{margin-bottom:12px}p{color:var(--text-muted);line-height:1.6}button{background:var(--accent);color:#fff;border:none;padding:12px 20px;border-radius:var(--radius);font-size:15px;font-weight:500;cursor:pointer;transition:background .15s}button:hover:not(:disabled){background:var(--accent-hover)}button:disabled{opacity:.5;cursor:not-allowed}button.secondary{background:var(--bg-elev-2);color:var(--text)}button.secondary:hover:not(:disabled){background:var(--border)}.card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:16px}.row{display:flex;gap:12px;flex-wrap:wrap}.badge,.row{align-items:center}.badge{display:inline-flex;gap:6px;padding:4px 10px;background:var(--bg-elev-2);border:1px solid var(--border);border-radius:999px;font-size:12px;color:var(--text-muted)}.badge.success{background:rgba(74,222,128,.1);border-color:rgba(74,222,128,.3);color:var(--success)}.badge.error{background:hsla(0,91%,71%,.1);border-color:hsla(0,91%,71%,.3);color:var(--error)}.field{display:flex;flex-direction:column;gap:4px;padding:8px 0;border-bottom:1px solid var(--border)}.field:last-child{border-bottom:none}.field-label{font-size:12px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.field-value{font-size:15px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.qr-frame{display:flex;justify-content:center;padding:24px;background:#fff;border-radius:var(--radius);margin:16px 0}.qr-frame img{display:block;width:320px;height:320px}.video-frame{width:100%;aspect-ratio:4/3;background:var(--bg-elev-2);border-radius:var(--radius);margin-bottom:16px;overflow:hidden;position:relative}.video-frame canvas,.video-frame video{width:100%;height:100%;object-fit:cover}.step-list{list-style:none;display:flex;flex-direction:column;gap:4px;margin:16px 0}.step-list li{display:flex;align-items:center;gap:12px;padding:8px 0;color:var(--text-muted)}.step-list li.active{color:var(--text);font-weight:500}.step-list li.done{color:var(--success)}.step-dot{width:8px;height:8px;border-radius:50%;background:var(--border);flex-shrink:0}.step-list li.active .step-dot{background:var(--accent);box-shadow:0 0 0 4px rgba(79,140,255,.2)}.step-list li.done .step-dot{background:var(--success)}