/* ═══ Quiz ═══ */
.quiz-wrap { max-width: 760px; margin: 0 auto; }

.progress { display: flex; gap: 4px; margin: 6px 0 18px; }
.progress .seg { flex: var(--n); display: flex; flex-direction: column; gap: 5px; }
.progress .track { height: 8px; border-radius: 99px; background: var(--grid); overflow: hidden; }
.progress .fill { height: 100%; background: var(--accent); border-radius: 99px; transition: width .35s var(--ease); }
.progress .lbl { font-size: .7rem; color: var(--text-3); font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.progress .seg.current .lbl { color: var(--accent); }

.q-card { padding: 28px 30px 24px; }
.q-meta { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 10px; }
.q-frame { font-size: .88rem; color: var(--text-3); font-style: italic; margin-bottom: 6px; }
.q-text { font-size: 1.32rem; line-height: 1.45; font-weight: 700; color: var(--text-1); margin: 4px 0 20px; }

.opts { display: flex; flex-direction: column; gap: 9px; }
.opts.freq5, .opts.agree4 { display: grid; gap: 8px; }
.opts.freq5 { grid-template-columns: repeat(5, 1fr); }
.opts.agree4 { grid-template-columns: repeat(4, 1fr); }
.opt {
  display: flex; align-items: center; gap: 12px; width: 100%;
  text-align: left; font-weight: 400; font-size: .98rem;
  border-radius: 14px; padding: 13px 16px;
  background: var(--panel); border: 1.5px solid var(--border-strong);
}
.opts.freq5 .opt, .opts.agree4 .opt { flex-direction: column; justify-content: center; text-align: center; gap: 6px; padding: 14px 8px; font-size: .9rem; min-height: 86px; }
.opt .key { flex: none; width: 24px; height: 24px; border-radius: 50%; border: 1.5px solid var(--border-strong); display: inline-flex; align-items: center; justify-content: center; font-size: .75rem; font-weight: 700; color: var(--text-3); font-family: var(--mono); }
.opt:hover { border-color: var(--accent); background: var(--panel-2); }
.opt[aria-checked="true"] { border-color: var(--accent); background: var(--accent-soft); color: var(--text-1); font-weight: 700; }
.opt[aria-checked="true"] .key { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

.num-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.num-row input[type="number"] { width: 120px; font-size: 1.3rem; font-weight: 700; text-align: center; }
.num-row input[type="range"] { flex: 1; min-width: 200px; }
.num-row .unit { color: var(--text-2); font-weight: 700; }

.q-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 24px; gap: 10px; flex-wrap: wrap; }
.q-hint { font-size: .78rem; color: var(--text-3); text-align: center; margin-top: 14px; }
.why-box { margin-top: 16px; }

.section-intro { text-align: center; padding: 40px 30px; }
.section-intro .big { font-size: 2.4rem; color: var(--accent); margin-bottom: 6px; }

@media (max-width: 700px) {
  .opts.freq5, .opts.agree4 { grid-template-columns: 1fr; }
  .opts.freq5 .opt, .opts.agree4 .opt { flex-direction: row; justify-content: flex-start; text-align: left; min-height: 0; padding: 12px 14px; }
  .q-card { padding: 20px 18px; }
  .q-text { font-size: 1.14rem; }
  .progress .lbl { display: none; }
}

/* ── Examples box beside the question ── */
.quiz-wrap.wide { max-width: 1120px; }
.q-layout.has-ex { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 16px; align-items: start; }
.ex-box { padding: 18px 20px; background: var(--panel-2); border-left: 4px solid var(--accent); position: sticky; top: 16px; }
.ex-box ul { margin: 10px 0 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.ex-box li { position: relative; padding-left: 20px; font-size: .92rem; line-height: 1.45; color: var(--text-1); }
.ex-box li::before { content: "›"; position: absolute; left: 4px; top: -1px; color: var(--accent); font-weight: 700; }
.ex-note { font-size: .84rem; color: var(--text-2); background: var(--accent-soft); border-radius: 10px; padding: 8px 10px; margin: 12px 0 0; }
.ex-foot { font-size: .76rem; color: var(--text-3); margin: 12px 0 0; font-style: italic; }
@media (max-width: 960px) {
  .q-layout.has-ex { grid-template-columns: 1fr; }
  .ex-box { position: static; }
}