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:root .sentence[data-mode="ja-en"]{display:flex;flex-direction:column}
.sentence[data-mode="ja-en"] .sentence-head{order:0}
.sentence[data-mode="ja-en"] .translation-hint{order:1}
.sentence[data-mode="ja-en"] .ja{order:2}
.sentence[data-mode="ja-en"] .en{order:3}
.sentence[data-mode="ja-en"] .audio-links{order:4}
.sentence[data-mode="ja-en"] .answer-entry{order:5}
.sentence[data-mode="ja-en"] .answer-controls{order:6}
.sentence[data-mode="ja-en"] .ratings{order:7}
.sentence[data-mode="ja-en"] .rating-status{order:8}
.sentence .ja[role="button"]{padding:14px 16px;background:#eaf3f8;border:1px solid #91b8d0;border-radius:8px;cursor:pointer;min-height:48px;touch-action:manipulation}
.sentence .ja[role="button"]:hover{background:#dfeef6}
.sentence .ja[role="button"]:focus-visible{outline:3px solid #b76b00;outline-offset:4px}
/* Section-scoped frozen chart: it releases at the final sentence of its article. */
.chart-section{position:relative;overflow:visible;isolation:isolate}
.chart-pinned{position:sticky;top:0;z-index:5;background:#fff;padding:8px 0 10px;border-bottom:2px solid #b8cfde;box-shadow:0 5px 7px -7px #173e5c}
.pinned-caption{display:flex;justify-content:space-between;gap:6px 12px;flex-wrap:wrap;margin:0 0 5px;font-size:.95rem;font-weight:700;color:var(--blue);line-height:1.45}
.pinned-caption span{font-size:.875rem;font-weight:400}
.chart-pinned .chart-link{margin:0}
.chart-pinned .chart-image{width:100%;height:auto;max-height:min(26vh,250px);max-height:min(26svh,250px);object-fit:contain;border:0;border-radius:0}
.chart-pinned .chart-link>span{font-size:.875rem;margin:2px 0;line-height:1.4}
.mode-buttons,.speed-buttons,.review-filters{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.mode-buttons button,.speed-buttons button,.review-filters button{background:#fff;color:var(--blue);border-color:#8eacbf;font-size:.95rem}
.mode-buttons button[aria-pressed=true],.speed-buttons button[aria-pressed=true],.review-filters button[aria-pressed=true]{background:var(--blue);color:#fff}
.mode-buttons button{flex:1 1 auto;padding:8px 12px}
.chart-pinned .mode-buttons{gap:6px;margin-top:5px}
.chart-pinned .mode-buttons button{font-size:.9rem;min-height:44px;padding:6px 9px}
.speed-buttons span{font-size:.9rem}
.speed-buttons button{padding:7px 12px}
.review-filters{margin-top:16px}
.review-filters button{flex:1 1 auto}
.sentence{scroll-margin-top:calc(var(--chart-pin-height,300px) + 16px)}
button.sentence-text{display:block;width:100%;text-align:left;white-space:normal;margin:12px 0;padding:12px 14px;min-height:48px;background:#fff;border:1px solid #c7d7e2;border-radius:8px;box-shadow:none;text-decoration:none;touch-action:manipulation;cursor:pointer;line-height:1.7}
button.sentence-text.en{font-family:Arial,sans-serif;font-size:clamp(1.2rem,3vw,1.6rem);font-weight:700;color:var(--red)}
button.sentence-text.ja{font-size:clamp(1.1rem,2.5vw,1.3rem);font-weight:700;color:#111827}
button.sentence-text:hover{background:#edf5fa;filter:none}
.sentence-text:focus-visible{outline:3px solid #b76b00;outline-offset:3px}
.sentence-head .rating-status{font-size:.875rem;font-weight:700;color:var(--blue)}
.sentence .ratings [data-rate=good][aria-pressed=true]{background:#087344;border-color:#087344}
.sentence .ratings [data-rate=review][aria-pressed=true]{background:#965800;border-color:#965800}
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@media(max-height:500px){.chart-pinned .chart-image{max-height:23vh;max-height:23svh}.chart-pinned .chart-link>span{margin:0}.chart-pinned{padding:4px 0}.chart-pinned .mode-buttons{margin-top:2px}}