:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#1b1d22;background:#f4f0e8;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}button,textarea{font:inherit}.app-shell{width:min(1120px,calc(100% - 40px));margin:0 auto;padding:48px 0}.hero{display:grid;gap:18px;padding:34px 0 26px;border-bottom:1px solid rgba(27,29,34,.14)}.brand-row{display:flex;gap:18px;align-items:center}.mark{width:72px;height:72px;border-radius:18px;box-shadow:0 18px 40px #1b1d2229}.eyebrow{margin:0 0 4px;color:#5b6576;font-size:.86rem;font-weight:700;text-transform:uppercase}h1,h2{margin:0;letter-spacing:0}h1{font-size:clamp(2rem,6vw,4.5rem);line-height:.98}h2{font-size:1.1rem}.summary{max-width:780px;margin:0;color:#444b57;font-size:1.02rem;line-height:1.65}.grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:20px;margin-top:28px}.panel{display:grid;gap:18px;padding:20px;background:#fffdf8;border:1px solid rgba(27,29,34,.12);border-radius:8px;box-shadow:0 14px 30px #1b1d2214}.checks{display:grid;gap:10px;margin:0}.checks div{display:flex;justify-content:space-between;gap:14px;padding-bottom:10px;border-bottom:1px solid rgba(27,29,34,.1)}.checks dt{color:#5b6576;font-weight:650}.checks dd{margin:0;text-align:right}.endpoint-label{color:#5b6576;font-size:.86rem;font-weight:700}textarea{width:100%;min-height:88px;padding:12px;color:#1b1d22;background:#f8f6f1;border:1px solid rgba(27,29,34,.22);border-radius:8px;resize:vertical}button{justify-self:start;padding:10px 14px;color:#f4f0e8;background:#101114;border:0;border-radius:8px;cursor:pointer}button:hover{background:#2a2d34}.probe-result{display:grid;gap:8px;min-height:92px;padding:14px;background:#f8f6f1;border:1px solid rgba(27,29,34,.12);border-radius:8px}.probe-ok{border-color:#00806066}.probe-error{border-color:#be2c2c73}code{display:block;max-width:100%;overflow:auto;padding:10px;color:#1b1d22;background:#ebe7de;border-radius:6px;font-size:.85rem}@media(max-width:760px){.app-shell{width:min(100% - 28px,1120px);padding:24px 0}.brand-row{align-items:flex-start}.mark{width:56px;height:56px;border-radius:14px}.grid{grid-template-columns:1fr}.checks div{display:grid}.checks dd{text-align:left}}