/* Hinh Anh Y Hoc V6.0 — Admin-first update */
.v60-admin-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:18px 0 26px}
.v60-admin-nav-item{min-height:72px;display:flex;align-items:center;gap:11px;padding:15px 16px;background:var(--surface);border:1px solid var(--line);border-radius:14px;color:var(--muted);font-weight:700;font-size:12px;box-shadow:var(--shadow)}
.v60-admin-nav-item .icon{color:var(--teal)}
.v60-admin-nav-item:hover{transform:translateY(-2px);border-color:#9cc7c1}
.v60-admin-nav-item.active{background:linear-gradient(135deg,var(--teal),#0d5d59);color:#fff;border-color:transparent}
.v60-admin-nav-item.active .icon{color:#fff}
.v60-admin-split{display:grid;grid-template-columns:minmax(310px,.72fr) minmax(0,1.55fr);gap:22px;align-items:start}
.v60-course-admin-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.v60-course-admin-card{padding:0;overflow:hidden;display:grid;grid-template-columns:150px minmax(0,1fr);min-height:188px}
.v60-course-admin-card>div:last-child{padding:20px}
.v60-course-admin-image{width:100%;height:100%;min-height:188px;object-fit:cover;background:linear-gradient(135deg,#103943,#0b6d68)}
.v60-course-admin-image.placeholder{display:grid;place-items:center;color:#c7eee8}.v60-course-admin-image.placeholder .icon{width:42px;height:42px}
.v60-course-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;background:linear-gradient(135deg,#0d2f3a,#0c514f);color:#fff;border-radius:18px;padding:25px 28px;margin-bottom:14px;overflow:hidden;min-height:160px}
.v60-course-head .eyebrow,.v60-course-head .text-link{color:#a5ddd5}.v60-course-head p:not(.eyebrow){max-width:720px;color:#c2d8dc;margin-top:6px}
.v60-course-head img{width:210px;height:118px;object-fit:cover;border-radius:13px;border:1px solid #ffffff2b;box-shadow:0 18px 35px #001c2230}
.v60-workspace-tabs{margin-bottom:22px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:5px;display:flex;gap:4px}
.v60-workspace-tabs .tab{padding:10px 14px;border-radius:8px;color:var(--muted);font-size:12px;font-weight:700}.v60-workspace-tabs .tab.active{background:var(--teal-light);color:var(--teal)}
.v60-import-shell>.card:first-child{border-left:4px solid var(--teal)}
.v60-import-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.v60-import-summary article{padding:16px 18px}.v60-import-summary span{display:block;color:var(--muted);font-size:10px;text-transform:uppercase;letter-spacing:.8px}.v60-import-summary strong{display:block;font-size:27px;margin-top:5px}
.v60-import-table-wrap{overflow:auto;max-height:620px;border:1px solid var(--line);border-radius:12px}
.v60-table{border-collapse:collapse;width:100%;min-width:880px;background:var(--surface)}.v60-table th,.v60-table td{padding:11px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;font-size:11px}.v60-table th{position:sticky;top:0;background:#f3f6f7;color:#687a83;z-index:2;text-transform:uppercase;font-size:9px;letter-spacing:.7px}.v60-table td:nth-child(2){max-width:440px}.v60-table td small{display:block;color:var(--muted);margin-top:4px;max-width:520px}.v60-table tr.needs-review{background:#fff8ec}
.v60-visual-editor,#v60-bank-edit{border:1px solid #a8d3cd;box-shadow:0 25px 65px rgba(11,71,68,.13)}
.v60-editor-images,.v60-question-images{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:10px;margin:16px 0}.v60-editor-images img,.v60-question-images img{width:100%;max-height:430px;object-fit:contain;background:#06161c;border-radius:10px;border:1px solid var(--line)}
.v60-question-images:not(.multiple){grid-template-columns:minmax(0,720px);justify-content:center}
.v60-answer-edit{display:grid;grid-template-columns:1fr 1fr;gap:9px 12px;margin:14px 0}.v60-answer-edit label{display:grid;grid-template-columns:34px 1fr;align-items:center;gap:8px}.v60-answer-edit label>span{width:32px;height:32px;display:grid;place-items:center;border-radius:9px;background:var(--teal-light);color:var(--teal);font-weight:800}
.v60-question-list{margin-top:12px;border-top:1px solid var(--line)}.v60-question-row{display:grid;grid-template-columns:50px minmax(0,1fr) auto;gap:14px;align-items:center;padding:15px 4px;border-bottom:1px solid var(--line)}.v60-question-row h3{font-size:13px;margin-top:7px}.v60-question-no{font-family:monospace;color:#7b8e96;font-size:11px}
.v60-split-preview{display:flex;flex-direction:column;gap:5px;padding:14px;background:var(--teal-light);border-radius:10px;margin:14px 0}.v60-split-preview strong{color:var(--teal);font-size:18px}.v60-split-preview span{font-size:10px;color:var(--muted);line-height:1.7}
.v60-quiz-row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.v60-library-admin{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.72fr);gap:22px;align-items:start}
.v60-library-admin aside{position:sticky;top:102px}.v60-library-admin .article-row{display:grid;grid-template-columns:48px minmax(0,1fr) auto auto;gap:11px;align-items:center}.v60-library-admin .article-thumb{width:44px;height:44px;border-radius:11px;background:var(--teal-light);display:grid;place-items:center;color:var(--teal)}
.v60-student-head{display:flex;justify-content:space-between;align-items:end;gap:20px}.v60-student-head .form-field{min-width:280px;margin:0}.v60-enrollment-list{max-height:620px;overflow:auto}.v60-enrollment-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid var(--line)}.v60-enrollment-row small{display:block;color:var(--muted);margin-top:3px}
.v60-health-hero{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:27px 30px;border-radius:18px;background:linear-gradient(135deg,#0d2f3a,#0b5954);color:#fff}.v60-health-hero p:not(.eyebrow){color:#bad0d3}.v60-health-status{display:inline-flex;align-items:center;gap:8px;padding:9px 13px;border:1px solid #ffffff2b;border-radius:99px;font-size:11px;font-weight:800}.v60-health-status i{width:8px;height:8px;border-radius:50%}.v60-health-status.good i{background:#6ee7b7;box-shadow:0 0 0 5px #6ee7b71c}.v60-health-status.bad i{background:#fb7185}
.v60-health-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:14px}.v60-health-grid .card{padding:17px}.v60-health-grid span{display:block;color:var(--muted);font-size:9px;text-transform:uppercase;letter-spacing:.7px}.v60-health-grid strong{display:block;font-size:17px;margin-top:5px;overflow-wrap:anywhere}.v60-health-grid small{color:var(--muted)}.v60-health-host{font-size:12px!important}
.v60-metric-list>div,.v60-check-list>div{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 0;border-bottom:1px solid var(--line)}.v60-check-list span{display:flex;align-items:center;gap:8px;min-width:0;overflow-wrap:anywhere}.v60-check-list i{width:8px;height:8px;border-radius:50%;flex:0 0 auto}.v60-check-list i.ok{background:#22a06b}.v60-check-list i.bad{background:#d45151}.v60-check-list strong{font-size:10px}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.file-input{width:100%;padding:10px;border:1px dashed #9db9b6;border-radius:10px;background:var(--bg);color:var(--muted)}.wrap{flex-wrap:wrap}.full-width{width:100%}
[data-theme="dark"] .v60-table th{background:#0d1d24}[data-theme="dark"] .v60-table tr.needs-review{background:#382d1b}[data-theme="dark"] .v60-import-table-wrap{border-color:var(--line)}
@media(max-width:1100px){.v60-admin-nav{grid-template-columns:repeat(2,1fr)}.v60-admin-split,.v60-library-admin{grid-template-columns:1fr}.v60-library-admin aside{position:static}.v60-health-grid{grid-template-columns:repeat(2,1fr)}.v60-course-admin-grid{grid-template-columns:1fr}}
@media(max-width:700px){.v60-admin-nav{grid-template-columns:1fr}.v60-admin-nav-item{min-height:55px}.v60-course-admin-card{grid-template-columns:100px 1fr}.v60-course-admin-image{min-height:170px}.v60-course-head{align-items:flex-start;flex-direction:column}.v60-course-head img{width:100%;height:170px}.v60-workspace-tabs{overflow-x:auto}.v60-workspace-tabs .tab{white-space:nowrap}.v60-import-summary,.v60-health-grid{grid-template-columns:1fr 1fr}.v60-answer-edit,.form-row{grid-template-columns:1fr}.v60-question-row{grid-template-columns:40px minmax(0,1fr)}.v60-question-row>.btn{grid-column:2}.v60-student-head{align-items:stretch;flex-direction:column}.v60-student-head .form-field{min-width:0}.v60-library-admin .article-row{grid-template-columns:42px minmax(0,1fr) auto}.v60-library-admin .article-row button{grid-column:3}}
@media(max-width:450px){.v60-import-summary,.v60-health-grid{grid-template-columns:1fr}.v60-course-admin-card{grid-template-columns:1fr}.v60-course-admin-image{height:145px;min-height:0}}
.v60-fixed-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:auto}
@media(max-width:520px){.v60-fixed-actions{grid-template-columns:1fr}}
.v60-editor-images.selectable{grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}.v60-image-choice{display:flex;flex-direction:column;gap:7px;padding:8px;border:1px solid var(--line);border-radius:12px;background:var(--bg)}.v60-image-choice img{height:180px}.v60-image-choice span{font-size:11px;font-weight:700;color:var(--muted)}