.overview-card{content-visibility:visible}
.overview-title #deckIntro{min-height:3em}
.keyboard-mode-hint{display:block;color:#73809b;font-size:12px;line-height:1.6;margin-top:6px;font-weight:400}
.study-display-toolbar{flex-wrap:wrap}.study-display-toolbar>.keyboard-mode-hint{flex-basis:100%}
#learningTools{width:min(1400px,94vw);max-height:90vh;padding:0;border:1px solid #e2e6f4;border-radius:24px;background:#f5f8ff;color:#172440;overflow:auto;box-shadow:0 24px 80px #17244040}
#learningTools::backdrop{background:#17244088}
.learning-tools-header{position:sticky;top:0;z-index:5;display:flex;align-items:center;flex-wrap:wrap;gap:18px;padding:20px 26px;background:#fff;border-bottom:1px solid #e2e6f4}
.learning-tools-header h2{margin:4px 0;font-size:26px}
.learning-tools-header small{color:#7055ff;font-weight:700}
.learning-tools-header label{display:flex;align-items:center;gap:10px;margin-left:auto}
.learning-tools-header select,.learning-tools-header button{padding:10px 14px;border:1px solid #e2e6f4;border-radius:12px;background:#fff;color:#172440;font:inherit;cursor:pointer}
.learning-tools-header nav{display:flex;gap:8px;width:100%}
.learning-tools-header button.active{background:#6850ec;color:white}
#closeLearningTools{order:2}
.learning-tools-content{padding:20px}
#learningTools [hidden]{display:none!important}
#learningTools .scene-atlas,#learningTools .review-hub{margin:0}
#learningTools .review-hub{flex-wrap:wrap}
#learningTools .scene-atlas.fullscreen{position:relative;inset:auto;width:auto;height:auto}
@media(max-width:650px){#learningTools{width:96vw;max-height:94vh;border-radius:16px}.learning-tools-header{padding:14px;gap:10px}.learning-tools-header label{width:100%;order:3}.learning-tools-header select{min-width:0;flex:1}.learning-tools-header nav{order:4}#closeLearningTools{margin-left:auto}.learning-tools-content{padding:10px}}