/* Trình soạn công thức dạng giao diện */
.mb{display:flex;flex-direction:column;gap:10px;min-width:0}
.mb__tabs{display:flex;flex-wrap:wrap;gap:4px}
.mb__tab{border:1px solid #d0d5dd;background:#fff;color:#344054;border-radius:999px;padding:5px 11px;font-size:12px;font-weight:700}
.mb__tab[aria-selected="true"]{background:#eff4ff;border-color:#84adff;color:#175cd3}
.mb__palette{display:grid;grid-template-columns:repeat(auto-fill,minmax(46px,1fr));gap:5px;padding:8px;border:1px solid var(--line,#e4e7ec);border-radius:10px;background:#f9fafb;max-height:170px;overflow:auto}
.mb__sym{min-height:38px;padding:3px 4px;border:1px solid #d0d5dd;background:#fff;border-radius:8px;display:grid;place-items:center;font-size:14px;color:#101828;overflow:hidden}
.mb__sym:hover,.mb__sym:focus-visible{border-color:#84adff;background:#eff4ff}
.mb__sym .katex{font-size:1em}
.mb__field,.mb__previewbox{display:block}
.mb__label{display:block;font-size:12px;font-weight:700;color:#475467;margin-bottom:5px}
.mb textarea.mb__input{width:100%;min-height:72px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;line-height:1.5;border:1px solid #d0d5dd;border-radius:8px;padding:9px 10px;resize:vertical;background:#fff;color:#101828}
.mb__preview{min-height:54px;padding:12px;border:1px dashed #b2ccff;border-radius:10px;background:#fff;color:#101828;overflow:auto;font-size:1.15em}
.mb__empty{color:#98a2b3;font-size:13px}
.mb__error{padding:8px 10px;border-radius:8px;background:#fef3f2;color:#b42318;font-size:12px}
.mb-trigger{display:inline-flex;align-items:center;gap:6px;margin:6px 0 12px;padding:5px 10px;border:1px solid #b2ccff;background:#eff4ff;color:#175cd3;border-radius:8px;font-size:12px;font-weight:700}
.mb-trigger:hover{background:#d1e0ff}
.mb-dialog{width:min(720px,calc(100vw - 24px));max-height:calc(100vh - 24px);overflow:auto}
.mb-dialog__box{padding:24px 26px}
.mb-dialog__box h2{margin:0 0 14px;font-size:21px}
.mb-dialog__display{display:flex!important;align-items:center;gap:8px;margin-top:12px!important;font-size:13px;font-weight:600}
.mb-dialog__display input{width:auto!important;margin:0!important}
.inspector-section .mb{margin-bottom:12px}
.inspector-section .mb__palette{grid-template-columns:repeat(auto-fill,minmax(40px,1fr));max-height:150px}
@media (max-width:640px){.mb-dialog__box{padding:18px 14px}}
.figure-status{margin:8px 0;font-size:12px;color:#475467}
.figure-status.is-error{color:#b42318}

/* Ô đã là ô soạn liền mạch (hiện đúng thứ học sinh thấy ngay trong ô): khung xem trước riêng bên dưới không cần nữa. */
.lesson-question-editor__field:has(> .fe-rich-source) + .lesson-question-editor__preview{display:none}