/* Plain CSS only: no nesting, no :has(), nothing newer than Firefox 115 / Chrome 109. */
* { box-sizing: border-box; }
body {
  margin: 0;
  background: #f4f5f7;
  color: #1d2125;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
main { max-width: 760px; margin: 0 auto; padding: 16px; }
h1 { font-size: 26px; margin: 8px 0; }
h2 { font-size: 19px; margin: 0 0 8px; }
.lead { margin-top: 0; }
.box { background: #fff; border: 1px solid #d8dbe0; border-radius: 8px; padding: 16px; margin: 16px 0; }
.box.bad { border-color: #c9372c; background: #ffeceb; }
.muted { color: #5e6670; }
label { display: block; margin: 8px 0 4px; }
input[type="text"] { width: 100%; max-width: 420px; padding: 8px; font: inherit; border: 1px solid #a5adba; border-radius: 6px; }
button { font: inherit; padding: 8px 14px; margin: 2px 4px 2px 0; border: 1px solid #0c66e4; background: #0c66e4; color: #fff; border-radius: 6px; cursor: pointer; }
button:disabled { opacity: 0.5; cursor: default; }
.ask button { background: #fff; color: #0c66e4; }
.ask button.chosen { background: #0c66e4; color: #fff; }
.ask { margin-top: 8px; }
video { display: block; max-width: 100%; height: auto; background: #000; }
table { width: 100%; border-collapse: collapse; }
td { border-top: 1px solid #e4e6ea; padding: 6px 4px; vertical-align: top; word-break: break-word; }
td.st { width: 64px; font-weight: bold; white-space: nowrap; }
.pass { color: #1f845a; }
.warn { color: #a54800; }
.fail { color: #c9372c; }
.info, .skip { color: #5e6670; }