:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.app{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.app-header{margin-bottom:3rem}.app-header h1{font-size:3rem;color:#646cff;margin-bottom:.5rem}.app-header p{font-size:1.2rem;color:#888}.app-main{display:flex;flex-direction:column;gap:3rem}.health-section,.echo-section{background:#1a1a1a;border-radius:8px;padding:2rem;border:1px solid #333}.health-section h2,.echo-section h2{margin-bottom:1.5rem;color:#fff}.health-status{padding:1rem;border-radius:6px;margin-bottom:1rem}.health-status.success{background:#0f5132;color:#d1e7dd;border:1px solid #0a3622}.health-status.error{background:#58151c;color:#f8d7da;border:1px solid #842029}.health-status.loading{background:#31264f;color:#cbc3e3;border:1px solid #432f5f}.echo-form{display:flex;gap:1rem;justify-content:center;align-items:center;margin-bottom:2rem}.message-input{padding:.75rem;border-radius:6px;border:1px solid #333;background:#2a2a2a;color:#fff;font-size:1rem;min-width:300px}.message-input:focus{outline:none;border-color:#646cff;box-shadow:0 0 0 2px #646cff1a}.echo-button{padding:.75rem 1.5rem;background:#646cff;color:#fff;border:none;border-radius:6px;font-size:1rem;cursor:pointer;transition:background-color .2s}.echo-button:hover:not(:disabled){background:#4c56d9}.echo-button:disabled{background:#555;cursor:not-allowed}.echo-response{background:#2a2a2a;border-radius:6px;padding:1.5rem;border:1px solid #333}.echo-response h3{margin-bottom:1rem;color:#646cff}.echo-response p{font-size:1.1rem;color:#fff;background:#1a1a1a;padding:1rem;border-radius:4px;border-left:4px solid #646cff}