:root { color-scheme: light dark; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  margin: 0;
}
main { max-width: 36rem; margin: 4rem auto; padding: 0 1.25rem; }
code { font-size: 0.95em; }
a { color: inherit; }
[hidden] { display: none !important; }
.agent h1:focus { outline: none; }
.agent label { display: block; margin: 1rem 0; }
.agent input { display: block; width: 100%; box-sizing: border-box; padding: 0.5rem; font: inherit; margin-top: 0.25rem; }
.agent button { font: inherit; padding: 0.5rem 1rem; margin: 0 0.5rem 0.5rem 0; cursor: pointer; }
.who { padding: 0.5rem 0.75rem; border: 1px solid; border-radius: 0.375rem; }
.who[data-signed-in="false"] { border-style: dashed; }
.fine { font-size: 0.875rem; }
.warning { font-weight: 600; }
.error { color: #b00020; }
@media (prefers-color-scheme: dark) { .error { color: #ff8a80; } }
body.dropping main { outline: 2px dashed; outline-offset: 0.5rem; }