.flashcard-toolbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:10px 0;}
.flashcard-toolbar h3{font-size:18px;margin:0;flex:1;}
.flashcard-settings,.flashcard-grade-settings{display:flex;flex-wrap:wrap;align-items:end;gap:12px;}
.flashcard-settings label{display:grid;gap:5px;font-size:13px;}
.flashcard-settings .flashcard-check{display:flex;align-items:center;}
.flashcard-settings input[type=checkbox]{width:18px;height:18px;}
.flashcard-settings input[type=number]{width:100px;}
.flashcard-grade-settings[hidden]{display:none;}
.flashcard-builder-list{display:grid;gap:0;}
.flashcard-builder-row{display:flex;gap:10px;align-items:center;padding:12px 0;border-bottom:1px solid var(--border-color, #555);flex-wrap:wrap;}
.flashcard-builder-row>button:has(.flashcard-preview){width:180px;display:grid;gap:6px;padding:6px;}
.flashcard-builder-row>strong{width:65px;}
.flashcard-preview{width:100%;aspect-ratio:16/9;position:relative;overflow:hidden;min-width:0;pointer-events:none;}
.flashcard-preview>.student-presentation-slide{position:absolute;top:0;left:0;max-width:none;max-height:none;border-radius:4px;}
.flashcard-text-preview{display:grid;place-content:center;padding:6px;font-size:14px;white-space:normal;overflow-wrap:anywhere;box-sizing:border-box;}
.flashcard-bingo-board .flashcard-text-preview{aspect-ratio:1;font-size:12px;padding:4px;}
.flashcard-builder .student-presentation-slide,.flashcard-choices .student-presentation-slide,.flashcard-bingo-board .student-presentation-slide{pointer-events:none;width:100%;min-height:0;aspect-ratio:16/9;margin:0;overflow:hidden;}
.flashcard-builder .student-presentation-slide-count,.flashcard-activity .student-presentation-slide-count,.flashcard-teacher .student-presentation-slide-count{display:none;}
.flashcard-activity{max-width:1200px;margin:0 auto;}
.flashcard-surface{width:100%;max-width:1000px;aspect-ratio:16/9;position:relative;overflow:hidden;margin:0 auto;}
.flashcard-surface>.student-presentation-slide{min-height:0;max-width:none;max-height:none;position:absolute;inset:0;margin:0;border-radius:4px;}
.flashcard-choices{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin:12px 0;}
.flashcard-choices>.btn{min-width:0;padding:6px;border-radius:6px;overflow:hidden;}
.flashcard-bingo-board{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px;max-width:900px;margin:12px auto;}
.flashcard-bingo-board>.btn{aspect-ratio:1;min-width:0;overflow:hidden;border-radius:4px;padding:2px;position:relative;}
.flashcard-bingo-board>.btn.marked{outline:3px solid #36bb8b;outline-offset:-3px;}
.flashcard-bingo-board>.btn.pending{outline:2px dashed #e9c557;outline-offset:-3px;}
.flashcard-bingo-board>.btn.marked:after{content:"\2713";position:absolute;right:4px;top:2px;font-size:24px;color:#36bb8b;background:#111;border-radius:50%;width:30px;height:30px;}
.flashcard-bingo-board>.btn:disabled{opacity:1;}
.flashcard-teacher{position:fixed;inset:0;z-index:2147483300;background:var(--window-card-bg,#16191b);padding:12px;overflow:auto;}
.flashcard-teacher .flashcard-surface{max-width:900px;}
.flashcard-section{padding:16px;}
.flashcard-section .flashcard-library-row{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid #555;}
.flashcard-library-row strong{flex:1;}
.assignment-bank-switcher{flex-wrap:wrap;}
.flashcard-set-list-item{width:100%;text-align:left;display:grid;gap:4px;overflow-wrap:anywhere;color:inherit;cursor:pointer;}
.flashcard-set-editor{min-width:0;}
.flashcard-set-activity{border-top:1px solid var(--border-color,#555);padding:16px 0;}
.flashcard-set-activity[hidden]{display:none;}
.flashcard-set-activity>.btn{margin-top:16px;}
#flashcardOrganizerPane{padding:10px;gap:10px;}
#flashcardOrganizerPane h3{margin:0;font-size:16px;}
#flashcardSetSearch{box-sizing:border-box;width:100%;min-width:0;padding:8px;border:1px solid var(--border-color,#666);border-radius:6px;background:var(--window-editor-bg);color:var(--text);}
@media(max-width:650px){.flashcard-set-editor .flashcard-builder-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));}.flashcard-set-editor .flashcard-builder-row>strong{grid-column:1/-1;}.flashcard-set-editor .flashcard-builder-row>button:has(.flashcard-preview){width:100%;}.flashcard-set-editor .flashcard-builder-row>button:not(:has(.flashcard-preview)){width:32px;height:32px;}}
@media(max-width:650px){.flashcard-choices{grid-template-columns:repeat(2,minmax(0,1fr));}.flashcard-builder-row>button:has(.student-presentation-slide){width:120px;}.flashcard-bingo-board{gap:3px;}.flashcard-surface{max-height:55vh;}.flashcard-activity .flashcard-toolbar{gap:7px;}}