:root{--bg:#f4f6fa;--panel:#fff;--text:#1d2433;--muted:#667085;--border:#e3e7ef;--primary:#2563eb;--primary-hover:#1d4ed8;--primary-soft:#e8efff;--ok:#16a34a;--ok-soft:#e9f8ef;--warn:#b7791f;--warn-soft:#fff6e5;--danger:#dc2626;--danger-soft:#fdecec;--radius:14px;color:var(--text);background:var(--bg);font-family:Segoe UI,Rubik,Assistant,system-ui,-apple-system,Arial,sans-serif;line-height:1.55}*{box-sizing:border-box}body{min-height:100vh;margin:0}code{background:#f0f2f7;border-radius:6px;padding:1px 6px;font-size:.9em}a{color:var(--primary)}.app{max-width:820px;margin:0 auto;padding:24px 16px 48px}.topbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:22px;display:flex}.brand{align-items:center;gap:12px;display:flex}.brand-mark{color:#fff;background:linear-gradient(135deg,#2563eb,#7c3aed);border-radius:12px;place-items:center;width:44px;height:44px;font-size:22px;font-weight:800;display:grid}.brand-title{font-size:20px;font-weight:700}.brand-sub{color:var(--muted);font-size:14px}.device-chip{background:var(--panel);border:1px solid var(--border);border-radius:999px;align-items:center;gap:10px;padding:6px 14px;font-size:14px;display:flex}.device-chip .dot{background:var(--ok);border-radius:50%;width:8px;height:8px}.stepper{gap:6px;margin:0 0 18px;padding:0;list-style:none;display:flex}.stepper li{background:var(--panel);border:1px solid var(--border);color:var(--muted);border-radius:10px;flex:1;align-items:center;gap:8px;min-width:0;padding:10px 12px;font-size:14px;display:flex}.stepper li.current{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);font-weight:600}.stepper li.done{color:var(--ok)}.stepper-num{background:#eef1f6;border-radius:50%;flex:none;place-items:center;width:24px;height:24px;font-size:13px;font-weight:700;display:grid}.stepper li.current .stepper-num{background:var(--primary);color:#fff}.stepper li.done .stepper-num{background:var(--ok-soft);color:var(--ok)}.stepper-label{white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:26px 28px;box-shadow:0 1px 3px #1018280d}.step h2{margin:0 0 14px;font-size:22px}.muted{color:var(--muted)}.step>.muted{margin-top:-6px}.instructions{gap:10px;margin:0 0 18px;padding-inline-start:20px;display:grid}.actions{flex-wrap:wrap;justify-content:flex-start;gap:10px;margin-top:22px;display:flex}.btn{font:inherit;cursor:pointer;border:1px solid #0000;border-radius:10px;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-weight:600;transition:background .15s,border-color .15s,opacity .15s;display:inline-flex}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:not(:disabled):hover{background:var(--primary-hover)}.btn-secondary{border-color:var(--border);color:var(--text);background:#fff}.btn-secondary:not(:disabled):hover{background:#fafbfd;border-color:#c5ccda}.btn-danger{color:var(--danger);background:#fff;border-color:#f3c2c2}.btn-danger:not(:disabled):hover{background:var(--danger-soft)}.btn-ghost{color:var(--muted);background:0 0}.btn-ghost:not(:disabled):hover{color:var(--text)}.link{color:var(--primary);font:inherit;cursor:pointer;background:0 0;border:none;padding:0}.link:disabled{color:var(--muted);cursor:default}.spinner{vertical-align:-3px;border:2px solid;border-top-color:#0000;border-radius:50%;flex:none;width:16px;height:16px;animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.alert{border:1px solid #0000;border-radius:10px;margin:12px 0;padding:12px 14px;font-size:15px}.alert-error{background:var(--danger-soft);color:#8f1d1d;border-color:#f6caca}.alert-warning{background:var(--warn-soft);color:#7a4d0b;border-color:#f5dfb3}.alert-success{background:var(--ok-soft);color:#14532d;border-color:#bfe8cf}.alert-info{background:var(--primary-soft);color:#1e3a8a;border-color:#c9d8fb}.check-row{border-bottom:1px solid var(--border);align-items:flex-start;gap:12px;padding:12px 0;display:flex}.check-row:last-of-type{border-bottom:none}.check-icon{border-radius:50%;flex:none;place-items:center;width:26px;height:26px;margin-top:1px;font-size:14px;font-weight:700;display:grid}.check-ok .check-icon{background:var(--ok-soft);color:var(--ok)}.check-blocker .check-icon{background:var(--danger-soft);color:var(--danger)}.check-warning .check-icon{background:var(--warn-soft);color:var(--warn)}.check-pending .check-icon{color:var(--muted);background:#eef1f6}.check-body{flex:1;min-width:0}.check-title{font-weight:600}.check-title .muted{margin-inline-start:6px;font-size:14px;font-weight:400}.check-text{color:var(--muted);overflow-wrap:anywhere;margin-top:2px;font-size:14px}.check-actions{flex-wrap:wrap;flex:none;justify-content:flex-end;gap:8px;display:flex}.check-actions .btn{padding:7px 12px;font-size:14px}.card{border:1px solid var(--border);border-radius:12px;margin:14px 0;padding:4px 16px 12px}.card .check-row{border-bottom:none}.form{flex-wrap:wrap;align-items:flex-end;gap:10px;padding-inline-start:38px;display:flex}.form label{color:var(--muted);flex:180px;gap:4px;font-size:14px;display:grid}.form input{font:inherit;border:1px solid var(--border);color:var(--text);background:#fff;border-radius:10px;padding:9px 12px}.form input:focus{outline:2px solid var(--primary-soft);border-color:var(--primary)}.form input:disabled{background:#f6f7fa}.channels{border:none;flex-wrap:wrap;gap:10px;margin:0 0 12px;padding:0;display:flex}.channels legend{margin-bottom:8px;padding:0;font-weight:600}.channel{border:1px solid var(--border);cursor:pointer;border-radius:10px;flex:150px;align-items:center;gap:8px;padding:10px 12px;display:flex}.channel.selected{border-color:var(--primary);background:var(--primary-soft)}.channel.empty{opacity:.5;cursor:not-allowed}.channel-name{font-weight:600}.channel-version{color:var(--muted);margin-inline-start:auto;font-size:14px}.progress{margin:16px 0}.progress-label{color:var(--muted);justify-content:space-between;margin-bottom:6px;font-size:14px;display:flex}.progress-track{background:#eef1f6;border-radius:999px;height:10px;overflow:hidden}.progress-bar{background:var(--primary);border-radius:999px;height:100%;transition:width .2s}.help{border-top:1px solid var(--border);margin-top:22px;padding-top:14px}.help summary{cursor:pointer;color:var(--primary);font-weight:600}.help ul{gap:6px;margin:10px 0 0;padding-inline-start:20px;display:grid}.log-panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);margin-top:18px;padding:10px 16px}.log-header{justify-content:space-between;align-items:center;gap:10px;display:flex}.log-toggle{font:inherit;color:var(--muted);cursor:pointer;background:0 0;border:none;padding:4px 0}.log-actions{gap:14px;font-size:14px;display:flex}.log-body{color:#cbd5e1;text-align:left;white-space:pre-wrap;word-break:break-all;background:#0f172a;border-radius:10px;max-height:320px;margin:10px 0 4px;padding:12px;font-size:12.5px;line-height:1.5;overflow:auto}.log-cmd{color:#93c5fd}.log-error{color:#fca5a5}.log-info{color:#86efac}@media (width<=640px){.panel{padding:20px 16px}.stepper-label{display:none}.stepper li{justify-content:center}.check-row{flex-wrap:wrap}.check-actions{justify-content:flex-start;width:100%;padding-inline-start:38px}.form{padding-inline-start:0}}.emulator h3{margin:12px 0 8px;font-size:17px}.emulator .instructions{margin-bottom:10px}.emulator .form{padding-inline-start:0}