/* At 100% no selector applies: preserve the original typography. */
body[data-reading-scale] #qText,
body[data-reading-scale] #explanationText .trainer-learning-copy,
body[data-reading-scale] #learningFontDialog .learning-font-copy,
body[data-reading-scale] #learningFontDialog .trainer-learning-copy {
    font-size: calc(.875rem * var(--trainer-reading-scale));
    line-height: 1.625;
    overflow-wrap: anywhere;
}
@media (min-width: 640px) {
    body[data-reading-scale] #qText,
    body[data-reading-scale] #learningFontDialog [data-font-prompt] { font-size: calc(1rem * var(--trainer-reading-scale)); }
}
.reading-scale-setting { margin-top: 1rem; color: #496184; }
.reading-scale-setting > label { display: block; font-size: .875rem; font-weight: 600; }
#readingScaleHelp, #readingScaleStatus { font-size: .75rem; line-height: 1.5; margin-top: .5rem; }
.reading-scale-controls { display: flex; align-items: center; gap: .5rem; margin-top: .5rem; }
.reading-scale-controls button { flex: 0 0 44px; min-height: 44px; background: #fff; border: 1px solid #d3e3fc; border-radius: 12px; font-size: 1.25rem; }
.reading-scale-controls input { flex: 1; min-width: 0; height: 44px; accent-color: #496184; }
#readingScaleValue { min-width: 3.1em; text-align: right; font-size: .875rem; font-variant-numeric: tabular-nums; }
.reading-scale-reset { display: block; min-height: 44px; text-decoration: underline; font-size: .75rem; }
.reading-scale-setting button:focus-visible, #readingScaleInput:focus-visible { outline: 2px solid #496184; outline-offset: 3px; }
.reading-scale-caption { font-size: .6875rem; margin: .25rem 0; }
#readingScaleSample { font-size: calc(.875rem * var(--sample-reading-scale, 1)); line-height: 1.625; overflow-wrap: anywhere; padding: .75rem; border-radius: 12px; background: #fff; }
#readingScaleStatus { color: #98451b; }
@media (min-width: 640px) { #readingScaleSample { font-size: calc(1rem * var(--sample-reading-scale, 1)); } }

/* Opt-in width affects the question/review screen only, never the main menu. */
#questionSideArrows { display: contents; }
.reading-width-label { margin-top: .75rem; }
#readingWidthSelect { width: 100%; min-height: 44px; margin-top: .5rem; padding: .5rem; border: 1px solid #d3e3fc; border-radius: 12px; background: #fff; font-size: .8125rem; }
#readingWidthHint, #readingWidthScope { font-size: .75rem; line-height: 1.5; margin-top: .5rem; }
#readingWidthScope { color: #657996; }
@media screen and (max-width: 900px) {
    body[data-reading-width] #quizScreen { margin-inline: -16px; width: calc(100% + 32px); border-radius: 0; }
    body[data-reading-width] #questionFrame { padding-inline: 0; }
    body[data-reading-width] #questionCard { border-radius: 0; }
    body[data-reading-width="compact"] #questionCard { padding-inline: max(12px, env(safe-area-inset-left)); padding-right: max(12px, env(safe-area-inset-right)); }
}
@media screen and (max-width: 639px) {
    /* Move the existing arrows above the card so they cannot cover expanded text. */
    body[data-reading-width] #questionSideArrows { display: flex; justify-content: space-between; padding-inline: 12px; }
    body[data-reading-width] #questionSideArrows .side-nav-btn { position: static; transform: none; height: 44px; border-radius: 12px; margin-bottom: 8px; }
    body[data-reading-width] #questionSideArrows .side-nav-btn.hidden { display: none; }
    body[data-reading-width] #questionSideArrows .side-nav-right { margin-left: auto; }
}

.reading-sample-disclosure { margin: 0 0 12px; }
.reading-sample-disclosure summary { min-height: 44px; display: flex; align-items: center; gap: 8px; font-size: .8125rem; cursor: pointer; color: #44577a; }
.reading-sample-disclosure summary::before { content: '+'; font-size: 1.1rem; }
.reading-sample-disclosure[open] summary::before { content: '−'; }
.reading-sample-disclosure summary::-webkit-details-marker { display: none; }
#readingScaleLabel, #readingWidthLabel { min-height: 44px; font-size: .875rem; }
#learningFontDialog .reading-scale-setting { margin-top: 12px; }
#learningFontDialog .learning-font-header { margin-bottom: 18px; }
#learningFontDialog .learning-font-controls { min-width: 0; }
#learningFontDialog .reading-scale-setting { min-width: 0; }
#readingScaleSample { max-height: 280px; overflow-y: auto; }

.reading-save-hint { margin: 0 0 16px; padding: 10px 12px; border-radius: 12px; background: #fff8ed; color: #526079; font: 400 12px/1.5 Raleway,sans-serif; }