:root{color-scheme:light;--bg: #f5f7fb;--surface: #ffffff;--surface-2: #eef3f7;--ink: #111827;--muted: #5f6b7a;--line: #d8e0e8;--green: #2bae8c;--blue: #3b82f6;--red: #d9486e;--gold: #f7c948;--shadow: 0 18px 48px rgba(31, 42, 68, .12);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}body{min-width:320px;min-height:100vh;margin:0;background:linear-gradient(180deg,#ffffffc7,#f5f7fbf5),repeating-linear-gradient(90deg,rgba(17,24,39,.035) 0 1px,transparent 1px 88px),var(--bg);color:var(--ink)}button,input,textarea{font:inherit}button{min-height:44px;border:0;border-radius:8px;padding:0 18px;cursor:pointer;font-weight:750}button:disabled{cursor:not-allowed;opacity:.48}.primary{background:var(--ink);color:#fff}.secondary{background:var(--surface-2);color:var(--ink);border:1px solid var(--line)}.shell{width:min(1080px,calc(100% - 32px));margin:0 auto;padding:28px 0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 0 24px}.brand{display:flex;align-items:center;gap:16px}.brand-mark{width:64px;height:64px;flex:0 0 auto;filter:drop-shadow(0 12px 20px rgba(17,24,39,.14))}.eyebrow{margin:0 0 4px;color:var(--muted);font-size:.78rem;font-weight:800;text-transform:uppercase}h1,h2,h3,p{margin-top:0;letter-spacing:0}h1{margin-bottom:8px;font-size:clamp(2rem,5vw,3.7rem);line-height:.98}h2{margin-bottom:0;font-size:1.28rem;line-height:1.2}h3{margin-bottom:8px;font-size:1rem}.intro{max-width:560px;margin-bottom:0;color:var(--muted);font-size:1.05rem;line-height:1.5}.help-button{flex:0 0 auto}.status-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:10px;margin-bottom:18px}.metric,.panel{background:#ffffffeb;border:1px solid var(--line);box-shadow:var(--shadow)}.metric{border-radius:8px;padding:12px 14px}.metric-label,.device-summary span,label span{color:var(--muted);font-size:.78rem;font-weight:850;text-transform:uppercase}.metric strong{display:block;margin-top:4px;overflow-wrap:anywhere}.workspace{display:grid;grid-template-columns:repeat(2,minmax(280px,1fr));gap:18px;align-items:stretch}.panel{border-radius:8px;padding:22px}.step-panel{display:grid;gap:18px;align-content:start}.panel-head{display:flex;align-items:start;justify-content:space-between;gap:12px}.panel-copy{margin-bottom:0;color:var(--muted);line-height:1.5}.step-number,.state-chip{display:inline-flex;min-height:30px;align-items:center;border-radius:999px;padding:5px 10px;font-size:.78rem;font-weight:850;white-space:nowrap}.step-number{justify-content:center;min-width:30px;background:#e8f7f2;color:#146b57}.state-chip{background:#fff6d6;color:#5f4812}.device-summary{display:grid;gap:5px;padding:14px;border-radius:8px;background:var(--surface-2)}.device-summary strong{overflow-wrap:anywhere}.actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.action-note{flex:1 1 230px;margin:0;color:var(--muted);font-size:.92rem;font-weight:700;line-height:1.45}.send-form{display:grid;gap:14px}.form-note{margin:-4px 0 0;color:var(--muted);font-size:.92rem;font-weight:700;line-height:1.45}label{display:grid;gap:7px}input,textarea{width:100%;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink);padding:12px 13px;outline:none}input:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #3b82f629}textarea{resize:vertical;min-height:104px}.modal-backdrop{position:fixed;inset:0;z-index:20;display:grid;place-items:center;padding:18px;background:#11182775}.instructions-dialog{width:min(720px,100%);max-height:min(760px,calc(100vh - 36px));overflow:auto;border-radius:8px;background:#fff;box-shadow:0 24px 72px #11182747;padding:22px}.dialog-head{display:flex;align-items:start;justify-content:space-between;gap:14px;margin-bottom:18px}.instructions-list{display:grid;gap:14px}.instructions-list article{border-top:1px solid var(--line);padding-top:14px}.instructions-list p{margin-bottom:0;color:var(--muted);line-height:1.55}@media(max-width:860px){.topbar{align-items:stretch;flex-direction:column}.status-strip,.workspace{grid-template-columns:1fr}.help-button{align-self:flex-start}}@media(max-width:560px){.shell{width:min(100% - 20px,1080px);padding:12px 0}.brand{align-items:flex-start}.brand-mark{width:50px;height:50px}.actions,.dialog-head{flex-direction:column}button{width:100%}}