/* khoi.css – thẻ khối ngành (trang chủ + trang "Các môn học theo khối ngành"), 20/10/2026 */
.ng-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--gap)}
.ng-card{display:flex;flex-direction:column;gap:6px;padding:18px 18px 16px;border-radius:calc(var(--radius) + 6px);background:var(--card);color:var(--text);border:1px solid var(--line);border-top:5px solid var(--ga,var(--brand));box-shadow:var(--shadow);text-decoration:none;transition:transform .15s,box-shadow .15s}
.ng-card:hover,.ng-card:focus-visible{transform:translateY(-3px);box-shadow:0 14px 32px rgba(15,40,90,.18)}
.ng-card .ng-ico{font-size:2rem;line-height:1}
.ng-card b{font-size:1.15rem}
.ng-card small{color:var(--muted)}
.ng-card .ng-meta{font-size:.84rem;color:var(--muted)}
.ng-card .ng-codes{display:flex;flex-wrap:wrap;gap:5px;margin-top:4px}
.ng-card .code.more{background:var(--soft);color:var(--muted)}
.ng-card .ng-go{margin-top:auto;padding-top:8px;font-weight:700;color:var(--ga,var(--brand))}
@media (prefers-reduced-motion:reduce){.ng-card{transition:none}}