:root{color:#17212b;font-synthesis:none;text-rendering:optimizelegibility;background:#f4f1ea;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button{color:#fff;min-height:44px;font:inherit;cursor:pointer;background:#0f766e;border:0;border-radius:8px;padding:0 18px;font-weight:700}button.secondary{background:#26384d}button.danger{background:#b42318}button:disabled{cursor:not-allowed;opacity:.58}button:hover{filter:brightness(1.08)}.app-shell{align-content:center;gap:18px;width:min(960px,100vw - 32px);min-height:100vh;margin:0 auto;padding:40px 0;display:grid}.status-panel,.socket-panel,.call-panel,.check-card{background:#fffdf8;border:1px solid #d8d0c4;border-radius:8px;box-shadow:0 12px 30px #17212b14}.status-panel{justify-content:space-between;align-items:center;gap:24px;min-height:180px;padding:28px;display:flex}.eyebrow,.check-label{color:#6f7680;letter-spacing:0;text-transform:uppercase;margin:0;font-size:.78rem;font-weight:800}h1{letter-spacing:0;margin:4px 0 0;font-size:3.2rem;line-height:1}.actions{flex-wrap:wrap;justify-content:flex-end;gap:10px;display:flex}.check-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;display:grid}.check-card{align-content:space-between;gap:14px;min-height:150px;padding:20px;display:grid}.check-card strong,.socket-panel strong,.call-panel strong{letter-spacing:0;font-size:1.45rem}.check-detail,output{color:#26384d;overflow-wrap:anywhere;background:#ece7dc;border-radius:6px;width:100%;min-height:36px;padding:8px 10px}.check-card[data-state=ok] .check-detail,output[data-state=open],output[data-state=message],output[data-state=streaming]{color:#12604e;background:#dff3e8}.check-card[data-state=error] .check-detail,output[data-state=error]{color:#9a2b20;background:#ffe2de}.socket-panel{grid-template-columns:minmax(140px,220px) 1fr;align-items:center;gap:18px;min-height:130px;padding:20px;display:grid}output{display:block}.call-panel{grid-template-columns:minmax(180px,260px) 1fr auto;align-items:center;gap:18px;min-height:150px;padding:20px;display:grid}@media (width<=720px){.app-shell{align-content:start;width:min(100vw - 24px,560px);padding:20px 0}.status-panel,.socket-panel,.call-panel{grid-template-columns:1fr;align-items:stretch}.status-panel{min-height:auto;display:grid}.actions,button{width:100%}.check-grid{grid-template-columns:1fr}}