:root{--bg:#0f1419;--card:#1a2332;--text:#e7ecf3;--muted:#8b9cb3;--accent:#3b82f6;--danger:#ef4444;--ok:#22c55e}*{box-sizing:border-box}body{margin:0;font-family:system-ui,sans-serif;background:var(--bg);color:var(--text)}a{color:var(--accent)}.container{max-width:1100px;margin:0 auto;padding:24px}.card{background:var(--card);border-radius:10px;padding:20px;margin-bottom:16px}button,input,select,textarea{font:inherit;padding:8px 12px;border-radius:6px;border:1px solid #334155;background:#0f172a;color:var(--text)}button{cursor:pointer;background:var(--accent);border:none}button.secondary{background:#475569}button.danger{background:var(--danger)}table{width:100%;border-collapse:collapse}td,th{padding:10px;text-align:left;border-bottom:1px solid #334155}.nav{display:flex;gap:16px;margin-bottom:24px}.mono{font-family:ui-monospace,monospace;font-size:12px;word-break:break-all}.qr-block{margin-top:16px}.qr-title{margin:0 0 8px;font-weight:600;color:var(--muted);font-size:14px}.qr-wrap{display:inline-block;padding:12px;background:#fff;border-radius:10px;line-height:0}.qr-hint{margin-top:10px;font-size:11px;color:var(--muted)}.qr-row{display:flex;flex-wrap:wrap;gap:24px;align-items:flex-start}