/* Mobile-first. Colors pull from Telegram theme params (set as CSS vars by app.js),
   with sane fallbacks so the app is usable in a plain browser too. */
:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #1a1a1a);
  --hint: var(--tg-theme-hint-color, #707579);
  --link: var(--tg-theme-link-color, #2a7bd6);
  --button: var(--tg-theme-button-color, #2a7bd6);
  --button-text: var(--tg-theme-button-text-color, #ffffff);
  --secondary-bg: var(--tg-theme-secondary-bg-color, #f1f1f4);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.45;
}

#app {
  max-width: 760px;
  margin: 0 auto;
  padding: 16px 16px 96px;
}

h1 { font-size: 1.4rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; margin: 0 0 8px; }

.lead { font-size: 1rem; }
.muted, .notes { color: var(--hint); }
.notes { padding-left: 18px; }
.notes li { margin-bottom: 6px; }

.hidden { display: none !important; }

.progress {
  font-size: 0.9rem;
  color: var(--hint);
  margin-bottom: 12px;
}

.case-block {
  background: var(--secondary-bg);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 16px;
}
.case-block h2 { margin-top: 0; }
.case-text { white-space: pre-wrap; }

/* Two columns side-by-side on wide screens. */
.answers {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.answer-col {
  background: var(--secondary-bg);
  border-radius: 12px;
  padding: 12px 14px;
}
.answer-text { white-space: pre-wrap; }

.safety {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--hint);
  cursor: pointer;
}
.safety input { margin-top: 3px; }

.answers-toggle {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}
.toggle-btn {
  flex: 1;
  padding: 10px;
  border: 1px solid var(--hint);
  background: transparent;
  color: var(--text);
  border-radius: 10px;
  font-size: 1rem;
}
.toggle-btn.active {
  background: var(--button);
  color: var(--button-text);
  border-color: var(--button);
}

fieldset.pref {
  border: none;
  padding: 0;
  margin: 0 0 16px;
}
fieldset.pref legend { font-weight: 600; margin-bottom: 8px; padding: 0; }
fieldset.pref label {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  margin-bottom: 8px;
  background: var(--secondary-bg);
  border-radius: 10px;
  cursor: pointer;
}

.routed {
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: capitalize;
}

.error {
  color: #c0392b;
  background: #fdecea;
  padding: 10px 12px;
  border-radius: 10px;
  margin-top: 16px;
}

/* Narrow screens: stack into one column and reveal the A/B toggle. */
@media (max-width: 560px) {
  .answers { grid-template-columns: 1fr; }
  .answers.toggled #col-1,
  .answers.toggled #col-2 { display: none; }
  .answers.toggled #col-1.show,
  .answers.toggled #col-2.show { display: block; }
}