/* KH EDUCATION — BẢN VÁ TỔNG HỢP V3 */
:root{--nhd-content-font:"Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif}
.nhd-stem,.nhd-content textarea,.nhd-answer-row textarea,.nhd-math,.nhd-pre-option,.nhd-short-answer,.nhd-pre-solution,.nhd-ai-draft .nhd-math-text,.nhd-ai-draft ol,.nhd-exam-preview article p,.nhd-question-font{font-family:var(--nhd-content-font)!important;font-size:12pt!important;line-height:1.5!important;font-synthesis:none!important}
.nhd-content textarea,.nhd-answer-row textarea{font-style:normal;font-weight:400}
.nhd-pre-option.correct{font-style:normal}
.nhd-pre-option.correct span{font-weight:400}
.nhd-math strong,.nhd-pre-solution>b,.nhd-short-answer>b{font-family:var(--nhd-content-font);font-style:normal;font-weight:700;font-synthesis:none}
.nhd-math em,.nhd-question-font em{font-family:var(--nhd-content-font);font-style:italic;font-weight:400;font-synthesis:none}
.nhd-no-bold-italic strong em,.nhd-no-bold-italic em strong{font-style:normal!important}

.nhd-v3-badge{font-size:9.5px;font-weight:800;letter-spacing:.5px;padding:4px 8px;border-radius:999px;background:#EDF4FC;color:#1F3864;border:1px solid #C8D8EC}
.nhd-sync-note{font-size:10px;color:#6e7d94;margin-left:auto}
.nhd-assignment-grid{display:grid;gap:8px}
.nhd-assignment-row{display:grid;grid-template-columns:minmax(190px,1.4fr) repeat(3,minmax(150px,1fr));gap:8px;align-items:stretch;padding:9px;border:1px solid #E1E8F2;border-radius:13px;background:#fff}
.nhd-assignment-user{display:flex;flex-direction:column;justify-content:center;min-width:0}
.nhd-assignment-user b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nhd-assignment-user small{color:#8494AC;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nhd-assignment-cell{display:grid;grid-template-columns:auto 1fr;gap:6px;align-items:center;padding:7px;border-radius:10px;background:#F5F8FC}
.nhd-assignment-cell input[type=checkbox]{width:17px;height:17px}.nhd-assignment-cell select{min-width:0;padding:6px 7px;font-size:11px}
.nhd-assignment-head{display:grid;grid-template-columns:minmax(190px,1.4fr) repeat(3,minmax(150px,1fr));gap:8px;padding:0 9px 6px;color:#718097;font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.45px}
.nhd-my-grades{display:flex;gap:8px;flex-wrap:wrap}.nhd-my-grades span{padding:8px 11px;border-radius:11px;background:#F3F6FB;color:#1F3864;font-weight:700}.nhd-my-grades span.duyet{background:#FFF1E8;color:#8B3D18}

.nhd-character-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.nhd-character-card{border:1px solid #DDE5F0;border-radius:14px;padding:12px;background:#fff}.nhd-character-card-head{display:flex;align-items:center;gap:8px;margin-bottom:9px}.nhd-character-card-head b{font-size:15px;color:#1F3864}.nhd-character-card-head span{margin-left:auto;font-size:9px;padding:4px 7px;border-radius:999px;background:#F2F5FA;color:#6D7B91}.nhd-character-card .nhd-grid2{gap:8px}.nhd-character-card textarea{min-height:58px}.nhd-character-card input,.nhd-character-card textarea,.nhd-character-card select{font-size:12px}

.nhd-font-slots{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.nhd-font-slot{border:1px dashed #B9C7DA;border-radius:13px;padding:12px;background:#F8FAFD}.nhd-font-slot b{display:block;color:#1F3864}.nhd-font-slot small{display:block;color:#8494AC;margin:3px 0 8px}.nhd-font-slot input{max-width:100%}.nhd-font-status{margin-top:10px;padding:9px 11px;border-radius:10px;background:#F3F7FC;color:#5F6F86;font-size:11px}

.nhd-ai-cost-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}.nhd-ai-cost-grid .nhd-field{margin-bottom:0}.nhd-ai-cost-warning{margin-top:10px;border-left:4px solid #BF4E14;background:#FFF5EF;border-radius:11px;padding:9px 11px;color:#7A4228;font-size:11.5px;line-height:1.5}
.nhd-pdf-range{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;align-items:end;margin:8px 0 12px;padding:10px;border-radius:12px;background:#F5F8FC}.nhd-pdf-range button{height:36px}.nhd-bulk-draft-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:9px}.nhd-draft-strip button.done{outline:2px solid #2E74B5}.nhd-draft-strip button.saved{background:#E9F5EB!important;color:#2B6A40!important}
.nhd-conflict-box{padding:12px 14px;border-radius:12px;background:#FFF3EE;border-left:4px solid #BF4E14;color:#7E3C20;margin-bottom:12px}

@media(max-width:1050px){.nhd-assignment-head,.nhd-assignment-row{grid-template-columns:1fr}.nhd-assignment-head>span:not(:first-child){display:none}.nhd-character-list{grid-template-columns:1fr}.nhd-ai-cost-grid{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.nhd-font-slots,.nhd-ai-cost-grid,.nhd-pdf-range{grid-template-columns:1fr}.nhd-sync-note{display:none}}

/* Không có mặt chữ Bold Italic: mọi tổ hợp đậm + nghiêng được đưa về một kiểu duy nhất. */
.nhd-question-font strong em,.nhd-question-font em strong,.nhd-math strong em,.nhd-math em strong,.nhd-pre-solution strong em,.nhd-pre-solution em strong{font-weight:400!important;font-style:italic!important;font-synthesis:none!important}