/* KH EDUCATION — BẢN VÁ TỔNG HỢP V4 */
.nhd-v4-browser{display:grid;gap:13px}
.nhd-v4-grade{display:grid;grid-template-columns:minmax(220px,.75fr) minmax(480px,1.6fr);gap:18px;align-items:center;padding:17px 19px;background:#fff;border:1px solid var(--vien);border-radius:18px;box-shadow:0 2px 12px rgba(31,56,100,.04)}
.nhd-v4-grade-title small,.nhd-v4-result-head small{font-size:9.5px;letter-spacing:1px;color:var(--mo)}.nhd-v4-grade-title h3{font-size:17px;color:var(--navy);margin:2px 0}.nhd-v4-grade-title p{font-size:11.5px;color:var(--mo)}
.nhd-v4-grade-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.nhd-v4-grade-buttons button{border:1px solid #D8E1ED;background:#F7F9FC;border-radius:13px;padding:13px 14px;text-align:left;color:var(--navy);display:flex;justify-content:space-between;align-items:center}.nhd-v4-grade-buttons button b{font-size:14px}.nhd-v4-grade-buttons button span{font-size:10.5px;color:var(--mo)}.nhd-v4-grade-buttons button.on{background:var(--navy);border-color:var(--navy);color:#fff}.nhd-v4-grade-buttons button.on span{color:rgba(255,255,255,.78)}
.nhd-v4-breadcrumb{display:flex;gap:10px;align-items:center;padding:11px 14px;background:#F7F9FC;border:1px solid #DDE5F0;border-radius:13px;min-width:0}.nhd-v4-breadcrumb>span{font-size:9.5px;font-weight:800;letter-spacing:.7px;color:var(--mo);text-transform:uppercase}.nhd-v4-breadcrumb>b{font-size:12px;color:var(--navy);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nhd-v4-breadcrumb button{margin-left:auto;border:0;background:transparent;color:var(--navy2);font-size:11px;font-weight:700}
.nhd-v4-taxonomy{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.nhd-v4-step{background:#fff;border:1px solid var(--vien);border-radius:16px;overflow:hidden;min-width:0}.nhd-v4-step-head{display:grid;grid-template-columns:30px minmax(0,1fr);gap:9px;align-items:center;padding:11px 12px;border-bottom:1px solid var(--vien);background:#FBFCFE}.nhd-v4-step-head>span{width:27px;height:27px;border-radius:50%;display:grid;place-items:center;background:#E9EFF7;color:var(--navy);font-weight:800;font-size:11px}.nhd-v4-step.has-value .nhd-v4-step-head>span{background:var(--navy);color:#fff}.nhd-v4-step-head small{display:block;color:var(--mo);font-size:9px;letter-spacing:.7px;text-transform:uppercase}.nhd-v4-step-head b{display:block;color:var(--navy);font-size:11.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nhd-v4-step-list{padding:7px;max-height:295px;overflow:auto}.nhd-v4-step-list button{width:100%;display:grid;grid-template-columns:52px minmax(0,1fr) auto;gap:7px;align-items:center;border:1px solid transparent;background:#fff;border-radius:10px;padding:8px;text-align:left;margin-bottom:3px}.nhd-v4-step-list button:hover{background:#F5F8FC}.nhd-v4-step-list button.on{background:#EAF2FB;border-color:#B8CCE5}.nhd-v4-step-list .code{font-family:Consolas,monospace;font-weight:800;font-size:10.5px;color:var(--navy2)}.nhd-v4-step-list .name{font-size:11.5px;color:#35445B;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.nhd-v4-step-list em{font-style:normal;font-size:9px;color:#8795AA;white-space:nowrap}.nhd-v4-step-empty{padding:30px 10px;text-align:center;color:var(--mo);font-size:11px}
.nhd-v4-wait{min-height:160px;display:grid;place-items:center;text-align:center}.nhd-v4-wait div{display:grid;gap:5px}.nhd-v4-wait b{color:var(--navy);font-size:15px}.nhd-v4-wait span{color:var(--mo);font-size:12px}
.nhd-v4-results{display:grid;gap:11px}.nhd-v4-result-head{display:flex;gap:14px;align-items:center;padding:14px 16px;background:#fff;border:1px solid var(--vien);border-radius:16px}.nhd-v4-result-head h3{color:var(--navy);font-size:16px;margin:2px 0}.nhd-v4-result-head>div:first-child>span{font-size:10.5px;color:var(--mo)}.nhd-v4-result-actions{margin-left:auto;display:flex;gap:7px;flex-wrap:wrap}.nhd-v4-filters{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.nhd-v4-filters input{min-width:280px;flex:1}.nhd-v4-part{overflow:hidden}.nhd-v4-part-head{display:flex;align-items:center;gap:10px;padding:11px 14px;border-bottom:1px solid var(--vien);background:#FBFCFE}.nhd-v4-part-head small{width:28px;height:28px;display:grid;place-items:center;border-radius:9px;background:var(--navy);color:#fff;font-weight:800}.nhd-v4-part-head h4{font-size:13px;color:var(--navy)}.nhd-v4-part-head>span{margin-left:auto;font-size:10.5px;color:var(--mo)}.nhd-v4-table{min-width:760px}.nhd-v4-table .nhd-stem{max-width:620px}
/* Không dùng mặt chữ vừa đậm vừa nghiêng. */
.nhd-question-font strong em,.nhd-question-font em strong,.nhd-math strong em,.nhd-math em strong,.nhd-pre-option strong em,.nhd-pre-option em strong,.nhd-pre-solution strong em,.nhd-pre-solution em strong{font-weight:400!important;font-style:italic!important;font-synthesis:none!important}
@media(max-width:1150px){.nhd-v4-taxonomy{grid-template-columns:1fr 1fr}.nhd-v4-grade{grid-template-columns:1fr}.nhd-v4-grade-buttons{max-width:760px}}
@media(max-width:720px){.nhd-v4-taxonomy,.nhd-v4-grade-buttons{grid-template-columns:1fr}.nhd-v4-result-head{align-items:flex-start;flex-direction:column}.nhd-v4-result-actions{margin-left:0}.nhd-v4-filters input{min-width:100%}.nhd-v4-breadcrumb>b{white-space:normal}}

.nhd-svg-entry-routes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:14px}
.nhd-svg-entry-card{position:relative;display:grid;grid-template-columns:34px minmax(0,1fr);column-gap:10px;align-items:center;padding:13px 14px;border:1px solid #D8E1ED;border-radius:14px;background:#F8FAFD;cursor:pointer;min-height:82px}
.nhd-svg-entry-card:hover{border-color:#9CB8D8;background:#F1F6FC}.nhd-svg-entry-card .num{grid-row:1/3;width:32px;height:32px;border-radius:10px;display:grid;place-items:center;background:#1F3864;color:#fff;font-weight:800}.nhd-svg-entry-card b{color:#1F3864;font-size:12.5px}.nhd-svg-entry-card small{color:#6F7E93;font-size:10.5px;line-height:1.35}.nhd-svg-entry-card input{position:absolute;inset:0;opacity:0;cursor:pointer}
@media(max-width:900px){.nhd-svg-entry-routes{grid-template-columns:1fr}}