/* Exam room /cat/: start screen and the shared fullscreen CBT screen. */
body.cat-body { background: var(--surface); }
.cat-room { display: flex; flex-direction: column; height: 100vh; height: 100dvh; }
.cat-bar { flex: none; }
.cat-fullscreen { display: inline-flex; align-items: center; gap: 8px; position: relative; }
.cat-fullscreen-note { max-width: 230px; font-size: .78rem; line-height: 1.25; opacity: .9; }

.cat-body { overflow: hidden; }
.cat-main { background: var(--surface); }
.cat-question { max-width: 860px; margin: 22px auto; }
.cat-question.card { padding: 22px var(--gutter); }
.cat-question .q-group { margin: 0; }
.cat-question .q-prompt { font-size: 1.08rem; }
.cat-passage {
  max-height: 42vh; overflow-y: auto; margin: 0 0 18px; padding: 14px 16px;
  border-left: 3px solid var(--accent); background: var(--surface-2);
}
.cat-passage .passage { margin: 0; }

.cat-side { background: var(--surface-2); }
.cat-side-head { padding: 16px 16px 0; }
.cat-side-head h2 { font-size: 1rem; margin: 0 0 4px; }
.cat-side-head .muted { margin: 0; font-size: .85rem; }
.cat-grid-inner { padding-top: 12px; }
.cat-grid { grid-template-columns: repeat(5, 1fr); }
.cat-num { position: relative; }
.cat-flag {
  position: absolute; top: -6px; right: -6px; display: inline-grid; place-items: center;
  width: 17px; height: 17px; border-radius: 50%; background: var(--accent); color: #fff;
  border: 2px solid var(--surface-2);
}
.cat-flag svg { width: 9px; height: 9px; }
.cat-legend-flag { color: var(--accent); }
.cat-actions { flex: none; }

.cat-start { max-width: 1120px; margin: 0 auto; padding: 32px var(--gutter) 64px; }
.cat-start .lead { max-width: 760px; }
.cat-start .grid-cards { margin-top: 12px; }
.cat-start-card { display: flex; flex-direction: column; gap: 12px; padding: 20px; }
.cat-start-card.is-selected { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent); }
.cat-start-card h2 { margin: 0; font-size: 1.12rem; }
.cat-start-card .btn { align-self: flex-start; margin-top: auto; }
.cat-start-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.cat-login { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin: 18px 0; }
.cat-login p { margin: 0; }
.cat-noscript { padding: 32px var(--gutter); }

@media (max-width: 860px) {
  .cat-fullscreen-note { display: none; }
  .cat-actions .btn-label { display: inline; }
  .cat-question { margin: 12px auto; }
}