/* 一問一答（ox-quiz.js）。相談モードと同じ暗いステージに担当キャラを立たせる。
   スタイルは #oxMode 配下に閉じる。スマホで position: fixed を使わない（CLAUDE.md） */
#oxMode {
  --ox-ink: #eef1f6; --ox-dim: #9aa5b8; --ox-line: rgba(255, 255, 255, 0.16);
  --ox-yes: #3fb27f; --ox-no: #e0607e;
  max-width: 1080px; margin: 0 auto; padding: 16px;
}
#oxMode .is-hidden { display: none; }

/* ── 科目選択 ── */
.ox-picker { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 20px; box-shadow: var(--shadow); }
.ox-picker-head { display: flex; gap: 16px; align-items: center; margin-bottom: 14px; }
.ox-picker-face { width: 84px; height: 84px; object-fit: cover; object-position: top; border-radius: 50%;
  background: radial-gradient(circle at 50% 30%, #2f3a4e, #0c0f16); flex: none; }
.ox-picker h2 { margin: 0 0 4px; font-size: 20px; }
.ox-picker-hint, .ox-picker-stats { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.ox-picker-stats { margin: 12px 0 0; }
.ox-picker-warn { margin: 6px 0 0; color: var(--rose); font-size: 13px; }
.ox-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.ox-chip { font: inherit; font-size: 13px; padding: 6px 12px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: #fff; color: var(--ink); }
.ox-chip.is-active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 700; }
.ox-picker-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; align-items: center; }
#oxMode .home-cta { width: auto; }
#oxMode .exam-action-btn:disabled { opacity: 0.5; cursor: default; }

/* ── ステージ ── */
.ox-stage {
  position: relative; display: grid; grid-template-columns: minmax(220px, 34%) 1fr; gap: 0 18px;
  min-height: 560px; border-radius: 10px; overflow: hidden; padding: 52px 20px 20px 0;
  background: radial-gradient(120% 85% at 22% 12%, #2f3a4e 0%, #1a1f2b 55%, #0c0f16 100%);
  box-shadow: inset 0 0 90px rgba(0, 0, 0, 0.55); color: var(--ox-ink);
}
.ox-hud { position: absolute; top: 0; left: 0; right: 0; display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; z-index: 2; }
.ox-hud-btn { font: inherit; font-size: 13px; color: var(--ox-ink); background: rgba(255, 255, 255, 0.1);
  border: 1px solid var(--ox-line); border-radius: 6px; padding: 5px 12px; cursor: pointer; }
.ox-progress { font-size: 13px; color: var(--ox-dim); font-variant-numeric: tabular-nums; }
.ox-streak { font-size: 13px; font-weight: 700; color: #ffc46b; }
#oxTts { margin-left: auto; }
.ox-chara { display: flex; justify-content: center; align-items: flex-end; min-height: 0; }
.ox-chara img { width: 100%; max-height: 560px; object-fit: contain; object-position: bottom center;
  filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.55)); }
.ox-talk { display: flex; flex-direction: column; gap: 12px; min-width: 0; }

.ox-bubble, .ox-card, .ox-reveal {
  background: rgba(12, 15, 22, 0.74); border: 1px solid var(--ox-line); border-radius: 13px;
  padding: 13px 15px; line-height: 1.85; box-shadow: 0 10px 26px rgba(0, 0, 0, 0.35);
}
.ox-bubble { border-left: 3px solid #8fb4ff; }
.ox-who { display: block; font-size: 12px; font-weight: 700; color: #8fb4ff; margin-bottom: 4px; }
#oxLine { margin: 0; white-space: pre-line; font-size: 15px; }
.ox-meta { margin: 0 0 6px; font-size: 12px; color: var(--ox-dim); letter-spacing: 0.04em; }
.ox-tag { margin-left: 8px; padding: 1px 8px; border-radius: 4px; background: rgba(224, 96, 126, 0.2);
  color: #ff9db3; font-weight: 700; }
.ox-lead { font-size: 13px; color: var(--ox-dim); margin-bottom: 8px; }
.ox-lead summary { cursor: pointer; }
.ox-lead p { margin: 6px 0 0; }
.ox-text { margin: 0; font-size: 17px; line-height: 1.9; color: #fff; }

.ox-answer-bar { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ox-btn { font: inherit; display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 12px 0; cursor: pointer;
  border-radius: 12px; border: 2px solid; background: rgba(255, 255, 255, 0.06); transition: transform 0.08s ease; }
.ox-btn-mark { font-size: 40px; font-weight: 800; line-height: 1; }
.ox-btn-label { font-size: 12px; font-weight: 700; letter-spacing: 0.1em; }
.ox-btn:active { transform: scale(0.97); }
.ox-btn-yes { color: var(--ox-yes); border-color: var(--ox-yes); }
.ox-btn-no { color: var(--ox-no); border-color: var(--ox-no); }
.ox-btn-yes:hover { background: rgba(63, 178, 127, 0.16); }
.ox-btn-no:hover { background: rgba(224, 96, 126, 0.16); }

.ox-verdict { margin: 0 0 8px; font-size: 15px; }
.ox-verdict.is-ok { color: #7fe0b0; }
.ox-verdict.is-ng { color: #ff9db3; }
.ox-note { font-size: 14px; color: var(--ox-ink); }
.ox-note :is(h1, h2, h3, h4) { font-size: 14px; margin: 8px 0 4px; }
.ox-note p, .ox-note ul { margin: 0 0 6px; }
.ox-note strong { color: #fff; }
.ox-note-all summary { cursor: pointer; color: var(--ox-dim); font-size: 13px; }
.ox-reveal-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; margin-top: 10px; }

.ox-result-score { margin: 0 0 8px; font-size: 40px; font-weight: 800; color: #fff; }
.ox-result-score span { font-size: 15px; font-weight: 400; color: var(--ox-dim); }
.ox-missed { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.ox-missed li { display: grid; gap: 2px; font-size: 13px; color: var(--ox-dim); }
.ox-missed-btn { justify-self: start; font: inherit; font-size: 12px; color: #8fb4ff; background: none;
  border: 0; padding: 0; cursor: pointer; text-decoration: underline; }

/* スマホ・iPad縦：立ち絵は上に小さく（顔が見える高さで切る）、吹き出しは全幅 */
@media (max-width: 820px) {
  #oxMode { padding: 10px 12px 32px; }
  .ox-picker { padding: 16px; }
  .ox-picker-face { width: 64px; height: 64px; }
  .ox-stage { grid-template-columns: 1fr; padding: 48px 12px 14px; min-height: 0; }
  .ox-chara { height: 190px; overflow: hidden; align-items: flex-start; }
  .ox-chara img { width: auto; height: 340px; max-height: none; object-position: top center; }
  .ox-text { font-size: 16px; }
  .ox-btn-mark { font-size: 34px; }
}