:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#111827;background:#f5f6fa;font-synthesis:none;text-rendering:optimizeLegibility;--primary-600: #487fff;--primary-50: #e4f1ff;--neutral-50: #f5f6fa;--neutral-100: #f3f4f6;--neutral-200: #ebecef;--neutral-300: #d1d5db;--neutral-500: #6b7280;--neutral-700: #374151;--neutral-900: #111827;--success-50: #f0fdf4;--success-600: #16a34a;--warning-50: #fff8e6;--warning-600: #ff9f29;--danger-50: #fef2f2;--danger-600: #dc2626;--shadow-soft: 4px 12px 32px rgba(0, 34, 92, .08)}*{box-sizing:border-box}body{margin:0;min-width:320px;background:var(--neutral-50)}button,input,select{font:inherit}.app-shell{min-height:100vh;display:grid;grid-template-columns:268px minmax(0,1fr)}.sidebar{background:#fff;color:var(--neutral-900);border-right:1px solid var(--neutral-200);padding:22px 16px;position:sticky;top:0;height:100vh}.brand{height:54px;display:flex;align-items:center;gap:12px;margin-bottom:24px}.brand-mark{width:42px;height:42px;display:grid;place-items:center;background:var(--primary-600);color:#fff;font-weight:800;border-radius:8px;box-shadow:0 12px 24px #487fff3d}.brand strong,.brand small,.topbar small{display:block}.brand small,.topbar small{color:var(--neutral-500);margin-top:2px;font-size:12px}.nav-list{display:grid;gap:6px}.nav-item{width:100%;height:44px;border:0;border-radius:8px;color:var(--neutral-700);background:transparent;display:flex;align-items:center;gap:10px;padding:0 10px;cursor:pointer;text-align:left;font-weight:650}.nav-group{display:grid;gap:4px}.nav-group-label{width:100%;height:44px;border:0;border-radius:8px;color:var(--neutral-700);background:transparent;display:flex;align-items:center;gap:10px;padding:0 10px;cursor:pointer;text-align:left;font-weight:750}.nav-group-label.active{color:var(--primary-600)}.nav-group-label:hover{background:var(--primary-50);color:var(--primary-600)}.nav-group-label>span:nth-child(2){flex:1}.nav-caret{color:var(--neutral-500);font-size:12px;line-height:1}.nav-sublist{display:grid;gap:3px;padding-left:38px}.nav-subitem{width:100%;min-height:34px;border:0;border-radius:8px;background:transparent;color:var(--neutral-700);cursor:pointer;padding:0 10px;text-align:left;font-size:13px;font-weight:650}.nav-icon{width:28px;height:28px;display:grid;place-items:center;border-radius:8px;color:var(--primary-600);background:var(--primary-50)}.nav-item:hover,.nav-item.active,.nav-subitem:hover,.nav-subitem.active{background:var(--primary-50);color:var(--primary-600)}.workspace{min-width:0}.topbar{min-height:82px;background:#fff;border-bottom:1px solid var(--neutral-200);display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 28px}.topbar h1{margin:3px 0 0;font-size:24px;line-height:1.2;font-weight:760}.topbar-actions{display:flex;align-items:center;gap:10px}.notification-center{position:relative}.notification-button{position:relative;width:40px;height:40px;border:1px solid var(--neutral-200);border-radius:8px;background:#fff;cursor:pointer;font-size:18px}.notification-button>strong{position:absolute;right:-5px;top:-6px;min-width:19px;height:19px;display:grid;place-items:center;padding:0 4px;border-radius:999px;background:#dc2626;color:#fff;font-size:10px}.notification-popover{position:absolute;z-index:100;right:0;top:48px;width:min(380px,calc(100vw - 28px));border:1px solid var(--neutral-200);border-radius:10px;background:#fff;box-shadow:0 18px 45px #0f172a26;overflow:hidden}.notification-popover header{display:flex;justify-content:space-between;gap:10px;padding:14px;border-bottom:1px solid var(--neutral-200)}.notification-popover header span,.notification-list span,.notification-list small{display:block;color:var(--neutral-500);font-size:12px}.notification-list{display:grid;max-height:380px;overflow:auto}.notification-list article{display:grid;gap:4px;padding:13px 14px;border-bottom:1px solid var(--neutral-100)}.notification-list article:last-child{border-bottom:0}.notification-list p{padding:18px;margin:0;color:var(--neutral-500);text-align:center}.search-box{width:min(280px,32vw);min-height:40px;display:flex;align-items:center;gap:8px;border:1px solid var(--neutral-200);background:var(--neutral-50);border-radius:8px;padding:0 12px;color:var(--neutral-500)}.search-box input{width:100%;border:0;outline:0;background:transparent}.user-pill{border:1px solid var(--neutral-200);background:#fff;border-radius:8px;padding:7px 12px;white-space:nowrap;color:var(--neutral-700);box-shadow:var(--shadow-soft);display:inline-flex;align-items:center;gap:8px}.user-pill strong,.user-pill small{display:block}.user-pill-photo{width:28px;height:28px;display:block;border-radius:8px;object-fit:cover;flex:0 0 auto}.user-pill small{color:var(--neutral-500);font-size:11px;margin-top:1px}.content{padding:24px 28px 44px}.grid{display:grid;gap:14px}.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}.panel,.stat,.table-wrap,.form-panel{background:#fff;border:1px solid var(--neutral-200);border-radius:8px;box-shadow:var(--shadow-soft)}.panel,.form-panel{padding:18px}.panel h2,.form-panel h2{margin:0 0 14px;font-size:18px}.panel p{color:var(--neutral-500)}.stat{padding:16px;position:relative;overflow:hidden}.stat:after{content:"";position:absolute;right:14px;top:14px;width:42px;height:42px;border-radius:8px;background:var(--primary-50)}.stat span{color:var(--neutral-500)}.stat strong{display:block;margin-top:8px;font-size:26px}.stat.good strong{color:var(--success-600)}.stat.warn strong{color:var(--warning-600)}.stat.danger strong{color:var(--danger-600)}.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}.button,.icon-button{border:1px solid var(--neutral-300);background:#fff;color:var(--neutral-900);border-radius:8px;min-height:38px;padding:0 12px;display:inline-flex;align-items:center;gap:8px;cursor:pointer;font-weight:650}.button.primary{background:var(--primary-600);border-color:var(--primary-600);color:#fff}.input,.select{min-height:38px;width:100%;border:1px solid var(--neutral-300);border-radius:8px;padding:0 10px;background:#fff;color:var(--neutral-900);outline:none}.select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--neutral-500) 50%),linear-gradient(135deg,var(--neutral-500) 50%,transparent 50%);background-position:calc(100% - 17px) 50%,calc(100% - 12px) 50%;background-repeat:no-repeat;background-size:5px 5px,5px 5px;cursor:pointer;line-height:1.2;padding-right:34px}.input:focus,.select:focus{border-color:var(--primary-600);box-shadow:0 0 0 3px #487fff24}.input:disabled,.select:disabled{background-color:var(--neutral-100);color:var(--neutral-500);cursor:not-allowed}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:720px}th,td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--neutral-200)}th{color:var(--neutral-500);font-size:13px;background:#fafbff}.pagination-bar{min-height:48px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 4px 0;color:var(--neutral-500);font-size:13px}.page-size-control{align-items:center;display:flex;gap:8px;margin-left:auto}.page-size-control span{color:var(--neutral-500);font-size:12px;font-weight:700}.page-size-control .select{min-width:78px}.pagination-actions{align-items:center;color:var(--neutral-900);display:flex;gap:8px}.pagination-actions strong{min-width:54px;text-align:center}.badge{display:inline-flex;align-items:center;min-height:24px;padding:0 8px;border-radius:999px;font-size:12px;font-weight:700;background:var(--primary-50);color:var(--primary-600)}.badge.good{background:var(--success-50);color:var(--success-600)}.badge.warn{background:var(--warning-50);color:#b76e00}.badge.danger{background:var(--danger-50);color:var(--danger-600)}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.field{display:grid;gap:6px}.field span{font-size:13px;color:var(--neutral-500)}.empty-state{min-height:160px;display:grid;place-items:center;text-align:center;color:var(--neutral-500)}.empty-state strong{display:block;color:var(--neutral-900);margin-bottom:4px}.auth-screen{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(135deg,#487fff14,#16a34a14),var(--neutral-50)}.auth-card{width:min(460px,100%);background:#fff;border:1px solid var(--neutral-200);border-radius:8px;box-shadow:var(--shadow-soft);padding:24px}.auth-brand{margin-bottom:18px}.auth-card h1{margin:0 0 8px;font-size:26px}.auth-card p{margin:0 0 18px;color:var(--neutral-500)}.auth-form{display:grid;gap:12px}.auth-link-button{width:fit-content;justify-self:end;border:0;background:transparent;color:var(--primary-600);padding:0;cursor:pointer;font-weight:800}.password-recovery-box{margin-top:14px;border:1px solid #dbeafe;background:#f8fbff;border-radius:8px;padding:12px}.auth-error{border:1px solid #fecaca;background:var(--danger-50);color:var(--danger-600);border-radius:8px;padding:10px 12px;font-weight:700}.auth-success{border:1px solid #bbf7d0;background:var(--success-50);color:var(--success-700);border-radius:8px;padding:10px 12px;font-weight:700}.auth-divider{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center;color:var(--neutral-500);font-size:13px;margin:16px 0}.auth-divider:before,.auth-divider:after{content:"";height:1px;background:var(--neutral-200)}.social-login{display:grid;gap:10px}.social-button{min-height:42px;border:1px solid var(--neutral-300);border-radius:8px;background:#fff;color:var(--neutral-900);display:flex;align-items:center;justify-content:center;gap:10px;cursor:pointer;font-weight:750}.social-button span{width:24px;height:24px;display:grid;place-items:center;border-radius:999px;background:var(--neutral-100);font-weight:900}.social-button.apple{background:#111827;border-color:#111827;color:#fff}.social-button.apple span{background:#ffffff1f}.auth-hint{margin-top:14px;color:var(--neutral-500);font-size:13px}@media(max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{position:static;height:auto;border-right:0;border-bottom:1px solid var(--neutral-200)}.nav-list{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.cols-2,.grid.cols-3,.form-grid{grid-template-columns:1fr}.topbar{align-items:flex-start;gap:12px;flex-direction:column}.topbar-actions,.search-box{width:100%}.topbar-actions{align-items:stretch}}.program-workspace{display:grid;gap:14px}.layout-status{border-radius:8px;padding:12px 14px;font-weight:750}.layout-status.good{border:1px solid #bbf7d0;background:#f0fdf4;color:#166534}.layout-status.warn{border:1px solid #fde68a;background:#fffbeb;color:#92400e}.layout-status.danger{border:1px solid #fecaca;background:#fef2f2;color:#991b1b}.saving-button:disabled{cursor:progress;opacity:.82}.button-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.48);border-top-color:#fff;border-radius:999px;animation:button-spin .75s linear infinite}@keyframes button-spin{to{transform:rotate(360deg)}}.toolbar-search{display:inline-flex;align-items:center;gap:8px;color:#6b7280}.toolbar-search .input{width:min(320px,52vw)}.compact-filter{min-width:min(360px,100%);margin:0}.compact-filter span{font-size:12px;color:#6b7280}.compact-filter .select{width:100%}.program-form{display:grid;gap:16px}.subject-design-grid{grid-template-columns:1.2fr repeat(2,minmax(150px,.7fr))}.subject-design-grid .topic-objective{grid-column:1 / -1}.textarea{min-height:128px;padding-top:10px;line-height:1.5;resize:vertical}.section-heading{display:grid;gap:4px}.section-heading span{color:#6b7280;font-size:13px;font-weight:700}.section-heading h2{margin:0}.program-summary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.program-summary .stat{min-height:90px}.period-builder{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:16px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;background:#1118276b;display:grid;place-items:center;padding:24px}.modal-panel{width:min(1180px,100%);max-height:min(860px,calc(100vh - 48px));overflow:auto;background:#fff;border:1px solid #dbe2ea;border-radius:8px;box-shadow:0 24px 60px #11182733;padding:18px}.modal-header{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:14px}.modal-header h2{margin:0;font-size:20px}.modal-header span{display:block;color:#6b7280;font-size:13px;margin-top:3px}.modal-summary{display:grid;grid-template-columns:repeat(2,minmax(0,180px));gap:10px;margin-bottom:14px}.modal-summary .stat{min-height:82px}.new-subject-panel{border:1px solid #dbe2ea;border-radius:8px;background:#f8fafc;display:grid;grid-template-columns:170px 120px minmax(220px,1fr) 96px auto;gap:10px;align-items:end;padding:12px}.new-subject-panel .button{min-height:38px;white-space:nowrap}.modal-period-builder{grid-template-columns:repeat(2,minmax(0,1fr))}.period-card{border:1px solid #dbe2ea;border-radius:8px;background:#fff;display:grid;gap:12px;padding:14px;min-width:0}.period-card-header{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.period-card-header strong,.period-card-header span,.subject-row strong,.subject-row span{display:block}.period-card-header span,.subject-row span{color:#6b7280;font-size:12px;margin-top:2px}.period-subject-picker{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px}.period-subject-picker .select{min-width:0;width:100%}.subject-list{display:grid;gap:8px}.empty-period{border:1px dashed #d1d5db;border-radius:8px;color:#6b7280;padding:12px;text-align:center}.subject-row{display:grid;grid-template-columns:28px minmax(0,1fr) auto 38px;align-items:center;gap:8px;border:1px solid #ebecef;border-radius:8px;padding:8px;min-height:54px}.video-content-model-fields{grid-column:1 / -1;display:grid;grid-template-columns:minmax(260px,.45fr) minmax(220px,.28fr) minmax(220px,.28fr);gap:12px;min-width:0}.video-content-model-fields .input,.video-content-model-fields .select{min-width:0}.video-content-item{position:relative;grid-template-columns:minmax(0,1fr);gap:12px;padding:14px}.video-content-item .content-title-input{grid-column:1;padding-right:48px}.video-content-item .video-content-model-fields{grid-column:1}.video-content-item>.icon-button.danger{position:absolute;top:56px;right:14px;z-index:1}.video-meta-inline-row{grid-column:1 / -1;display:grid;grid-template-columns:minmax(150px,.2fr) minmax(150px,.18fr) minmax(520px,1fr);gap:12px;align-items:end;min-width:0}.compact-video-field{min-width:0}.compact-video-field span{font-size:12px}.video-link-field .input[readonly],.file-content-model-fields .input[readonly]{background:#f3f4f6;color:#4b5563;cursor:default}.file-content-model-fields{grid-column:1 / -1;display:grid;grid-template-columns:1fr;gap:12px;min-width:0}.file-content-model-fields .input{min-width:0}.file-upload-drop{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px dashed #9ca3af;border-radius:8px;padding:12px;color:#374151;cursor:pointer}.file-upload-drop input{display:none}.file-upload-drop:has(input:disabled){border-color:#2563eb;background:#eff6ff;color:#1d4ed8;cursor:progress;font-weight:800}.file-description-field{display:grid;gap:6px}.file-description-field textarea{min-height:92px;resize:vertical}.file-ready-status{min-height:42px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid #86efac;border-radius:8px;background:#f0fdf4;color:#15803d;font-weight:900;padding:0 12px}.file-upload-hint{color:#64748b;font-weight:700}.task-content-model-fields{grid-column:1 / -1;display:grid;grid-template-columns:minmax(120px,.25fr) minmax(220px,.35fr) minmax(280px,1fr);gap:12px;min-width:0}.task-content-model-fields .task-rich-field,.task-content-model-fields .toggle-field{grid-column:1 / -1}.task-content-model-fields .input,.task-content-model-fields .select{min-width:0}.rich-task-editor{border:1px solid #d1d5db;border-radius:8px;overflow:hidden;background:#fff}.rich-task-toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:8px;border-bottom:1px solid #e5e7eb;background:#f8fafc}.rich-color-button{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border:1px solid #d1d5db;border-radius:8px;background:#fff;color:#374151;cursor:pointer;position:relative}.rich-color-button input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer}.rich-task-surface{min-height:180px;padding:14px;color:#111827;line-height:1.55;outline:none}.rich-task-surface:empty:before{content:"Escribe instrucciones, agrega listas, colores, imágenes y detalles de la actividad...";color:#9ca3af}.rich-task-surface img{max-width:100%;height:auto;border-radius:8px;margin:8px 0}.rich-task-surface h3,.rich-task-surface h4{margin:8px 0;color:#111827}.rich-equation-block,.rich-diagram-block{display:grid;gap:6px;margin:10px 0;padding:12px;border:1px solid #dbe2ea;border-radius:8px;background:#f8fafc}.rich-equation-block strong,.rich-diagram-block strong{color:#475569;font-size:12px;text-transform:uppercase}.rich-equation-block code,.rich-diagram-block pre{margin:0;padding:10px;border-radius:6px;background:#111827;color:#f8fafc;white-space:pre-wrap;overflow-x:auto}.video-upload-drop{grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px dashed #9ca3af;border-radius:8px;padding:12px;color:#374151;cursor:pointer;transition:border-color .16s ease,background .16s ease,color .16s ease}.video-upload-drop input{display:none}.video-upload-drop:has(input:disabled),.video-upload-drop.uploading{border-color:#2563eb;background:#eff6ff;color:#1d4ed8;cursor:progress;font-weight:800}.video-upload-drop.drag-over{border-color:#16a34a;background:#ecfdf5;color:#166534;box-shadow:inset 0 0 0 1px #86efac}.video-upload-spinner{width:16px;height:16px;border:2px solid #bfdbfe;border-top-color:#2563eb;border-radius:999px;animation:video-upload-spin .8s linear infinite;flex:0 0 auto}.video-upload-progress-row{grid-column:1 / -1;display:grid;grid-template-columns:minmax(0,1fr) 48px;align-items:center;gap:10px;padding:10px 12px;border:1px solid #dbeafe;border-radius:8px;background:#eff6ff}.video-upload-progress-row strong{color:#1d4ed8;font-size:12px;text-align:right}.video-upload-progress-row small{grid-column:1 / -1;color:#4b5563;font-size:12px;font-weight:700}.video-upload-progress{height:9px;overflow:hidden;border-radius:999px;background:#e5e7eb}.video-upload-progress span{display:block;height:100%;border-radius:inherit;background:#2563eb}.video-upload-error{grid-column:1 / -1;color:#b91c1c;font-weight:700}.video-upload-status{display:inline-flex;align-items:center;justify-content:center;min-height:40px;border-radius:8px;border:1px solid #d1d5db;background:#f9fafb;color:#374151;font-size:12px;font-weight:800}.video-upload-status.procesando{border-color:#93c5fd;background:#eff6ff;color:#1d4ed8}.video-upload-status.listo{border-color:#86efac;background:#f0fdf4;color:#15803d}.video-upload-status.error{border-color:#fecaca;background:#fef2f2;color:#b91c1c}@keyframes video-upload-spin{to{transform:rotate(360deg)}}.subject-order{width:28px;height:28px;display:grid;place-items:center;border-radius:8px;background:#e4f1ff;color:#487fff;font-weight:800}.toggle-field{display:inline-flex;align-items:center;gap:6px;color:#374151;font-size:13px;font-weight:650;white-space:nowrap}.icon-button.danger{color:#dc2626;justify-content:center;padding:0;width:38px}.form-actions{display:flex;justify-content:flex-end;margin-top:16px}.button:disabled,.icon-button:disabled{cursor:not-allowed;opacity:.55}.table-button{min-height:34px;white-space:nowrap}.subjects-page,.subject-detail-page{display:grid;gap:14px}.subject-hero{display:flex;justify-content:space-between;align-items:stretch;gap:18px}.subject-hero>div:first-child{display:grid;align-content:center;gap:5px}.subject-hero span{color:#6b7280;font-size:13px;font-weight:700}.subject-hero h2{margin:0;font-size:24px}.subject-hero-stats{min-width:min(360px,42%);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.topic-workbench,.topic-editor{display:grid;gap:12px}.topic-header{display:grid;grid-template-columns:32px minmax(0,1fr) auto 38px;gap:10px;align-items:end}.topic-title-field .input{font-weight:760}.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(160px,1fr));gap:10px}.topic-objective{grid-column:1 / -1}.topic-resource-strip{display:flex;flex-wrap:wrap;gap:8px}.topic-resource-strip span{min-height:30px;display:inline-flex;align-items:center;gap:6px;border:1px solid #dbe2ea;border-radius:8px;background:#f8fafc;color:#374151;padding:0 10px;font-size:13px;font-weight:650}.topic-base-content-grid{display:grid;grid-template-columns:1fr;gap:14px}.topic-base-content-section{display:grid;gap:10px;border:1px solid #dbe2ea;border-radius:8px;padding:14px;background:#fff}.topic-base-content-section header{display:flex;justify-content:space-between;gap:10px;align-items:center}.topic-base-content-item{display:grid;grid-template-columns:minmax(180px,.45fr) minmax(0,1fr) auto;gap:8px;align-items:start;border:1px solid #ebecef;border-radius:8px;background:#f8fafc;padding:10px}.topic-base-content-item.video-content-item{position:relative;grid-template-columns:minmax(0,1fr);gap:12px;align-items:stretch;padding:14px}.topic-base-content-item.video-content-item .content-title-input{grid-column:1 / -1;width:100%;padding-right:48px}.topic-base-content-item.video-content-item .video-content-model-fields{grid-column:1 / -1;display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:12px;min-width:0}.topic-base-content-item.video-content-item .video-upload-drop{grid-column:1 / -1;min-height:56px;justify-content:center;padding:12px 56px 12px 16px}.topic-base-content-item.video-content-item .video-content-model-fields>.select{grid-column:span 6}.topic-base-content-item.video-content-item .video-meta-inline-row{grid-column:1 / -1;display:grid;grid-template-columns:minmax(150px,.18fr) minmax(150px,.16fr) minmax(0,1fr);gap:12px;align-items:end}.topic-base-content-item.video-content-item>.icon-button.danger{position:absolute;top:58px;right:16px;z-index:2}.topic-base-content-item.file-content-item,.topic-base-content-item.task-content-item,.topic-base-content-item.simple-content-item{position:relative;grid-template-columns:minmax(0,1fr);gap:12px;align-items:stretch;padding:14px}.topic-base-content-item.file-content-item .content-title-input,.topic-base-content-item.task-content-item .content-title-input,.topic-base-content-item.simple-content-item .content-title-input{grid-column:1 / -1;width:100%;padding-right:48px}.topic-base-content-item.file-content-item>.icon-button.danger,.topic-base-content-item.task-content-item>.icon-button.danger,.topic-base-content-item.simple-content-item>.icon-button.danger{position:absolute;top:14px;right:14px;z-index:2}.topic-base-content-item.file-content-item .file-content-model-fields{grid-column:1 / -1;display:grid;grid-template-columns:minmax(0,1fr);gap:12px}.topic-base-content-item.file-content-item .file-upload-drop,.topic-base-content-item.file-content-item .file-description-field,.topic-base-content-item.file-content-item .file-ready-status,.topic-base-content-item.file-content-item .file-upload-hint,.topic-base-content-item.task-content-item .task-content-model-fields{grid-column:1 / -1}.topic-base-content-item.simple-content-item>.input:not(.content-title-input){grid-column:1 / -1;min-height:44px}.forum-content-model-fields{grid-column:1 / -1;display:grid;gap:8px}.forum-instructions-field{display:grid;gap:6px}.forum-instructions-field textarea{min-height:120px;resize:vertical}.evaluation-content-model-fields{grid-column:1 / -1;display:grid;gap:12px}.evaluation-ready-card{display:flex;gap:10px;align-items:center;border:1px solid #dbe2ea;border-radius:8px;background:#f8fafc;padding:12px}.evaluation-ready-card.ready{border-color:#86efac;background:#f0fdf4;color:#15803d}.evaluation-ready-card strong,.evaluation-ready-card span{display:block}.evaluation-ready-card span{margin-top:2px;color:#64748b;font-size:12px;font-weight:750}.evaluation-description-field textarea{min-height:92px;resize:vertical}.evaluation-validation-error{color:#b91c1c;font-weight:800}.evaluation-validation-ok{color:#15803d;font-weight:800}.evaluation-builder-modal{display:grid;grid-template-rows:auto auto auto minmax(0,1fr) auto;gap:14px}.evaluation-builder-modal .modal-header{margin-bottom:0}.evaluation-builder-modal .modal-header span,.evaluation-builder-footer span{color:#64748b;font-size:12px;font-weight:850}.evaluation-builder-intro{display:grid;grid-template-columns:minmax(260px,.8fr) minmax(180px,.2fr);gap:12px}.evaluation-builder-intro>.field:last-child,.evaluation-pretest-toggle{grid-column:1 / -1}.evaluation-builder-actions,.evaluation-builder-footer{display:flex;justify-content:space-between;gap:12px;align-items:center}.evaluation-builder-action-group,.evaluation-question-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.evaluation-question-list{display:grid;gap:12px;min-height:0;overflow:auto;padding-right:4px}.evaluation-question-editor{display:grid;gap:12px;border:1px solid #dbe2ea;border-radius:8px;background:#f8fafc;padding:14px}.evaluation-question-editor>header,.evaluation-answer-header{display:flex;justify-content:space-between;gap:12px;align-items:center}.evaluation-question-editor>header strong,.evaluation-question-editor>header span{display:block}.evaluation-question-editor>header span{margin-top:3px;color:#64748b;font-size:12px;font-weight:800}.question-text-field textarea{min-height:74px;resize:vertical}.evaluation-question-row{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:12px}.evaluation-answer-editor{display:grid;gap:10px;border:1px solid #e5e7eb;border-radius:8px;background:#fff;padding:12px}.evaluation-answer-row{display:grid;grid-template-columns:minmax(0,1fr) 130px 36px;gap:10px;align-items:center}.evaluation-answer-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:55;display:grid;place-items:center;background:#0f172a57;padding:24px}.evaluation-answer-modal{width:min(920px,100%);max-height:min(740px,calc(100vh - 48px));display:grid;grid-template-rows:auto auto minmax(0,1fr) auto;gap:12px;border:1px solid #dbe2ea;border-radius:8px;background:#fff;box-shadow:0 24px 60px #1118273d;padding:16px}.evaluation-answer-modal header,.evaluation-answer-modal footer{display:flex;justify-content:space-between;gap:14px;align-items:center}.evaluation-answer-modal header span,.evaluation-answer-modal footer span{color:#64748b;font-size:12px;font-weight:850}.evaluation-answer-modal h3,.evaluation-answer-modal p{margin:0}.evaluation-answer-modal p{color:#334155;line-height:1.45}.evaluation-answer-modal .evaluation-answer-editor{min-height:0;overflow:auto}.evaluation-empty-state{border:1px dashed #cbd5e1;border-radius:8px;background:#f8fafc;color:#64748b;font-weight:800;padding:22px;text-align:center}.video-content-item .video-upload-drop{min-height:52px;padding-right:52px}.content-map{grid-column:1 / -1;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px}.content-map h2{grid-column:1 / -1}.content-map span{background:#f2f6f9;border:1px solid #dbe2ea;border-radius:6px;padding:12px;text-align:center}.topic-list-page,.topic-detail-config-page{display:grid;gap:16px}@media(max-width:1180px){.video-content-model-fields{grid-template-columns:minmax(260px,1fr) minmax(220px,.5fr)}.video-meta-inline-row{grid-template-columns:minmax(150px,.35fr) minmax(150px,.3fr) minmax(360px,1fr)}}.topic-list-page .table-wrap table{min-width:860px}.topic-detail-config-page .topic-editor{display:grid;gap:16px}.topic-detail-config-page .topic-base-content-grid{margin-top:0}.student-topic-preview-modal{width:min(1280px,100%);height:min(900px,calc(100vh - 48px));max-height:calc(100vh - 48px);padding:0;overflow:hidden;display:grid;grid-template-rows:auto minmax(0,1fr)}.student-preview-header{margin:0;padding:20px 22px;border-bottom:1px solid #dbe2ea;background:#fff}.student-preview-header p{margin:6px 0 0;color:#6b7280;max-width:760px}.student-preview-shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:0;overflow-y:auto;background:#f5f6fa}.student-preview-rail{display:grid;align-content:start;gap:12px;padding:18px;border-right:1px solid #dbe2ea;background:#fff}.student-preview-badge,.student-preview-progress,.student-preview-facts{border:1px solid #dbe2ea;border-radius:8px;background:#f8fafc;padding:14px}.student-preview-badge{display:flex;gap:10px;align-items:center;color:#2563eb}.student-preview-badge strong,.student-preview-progress strong{display:block;color:#111827}.student-preview-badge span,.student-preview-progress span,.student-preview-facts span{color:#6b7280;font-size:13px}.student-preview-progress{display:grid;gap:8px}.student-preview-progress strong{font-size:34px}.student-preview-facts{display:grid;gap:10px}.student-preview-facts span{display:flex;gap:8px;align-items:center}.student-preview-stage{display:grid;align-content:start;gap:16px;padding:18px;min-width:0}.student-preview-quest-hero{display:grid;gap:14px;border:1px solid #c7d2fe;border-radius:8px;background:#fff;padding:16px;box-shadow:0 18px 42px #2563eb1a}.student-preview-quest-copy{display:grid;gap:8px}.student-preview-quest-copy>span{color:#2563eb;font-size:13px;font-weight:900}.student-preview-quest-copy h3{margin:0;font-size:28px;line-height:1.15}.student-preview-quest-copy p{margin:0;max-width:900px;color:#4b5563;line-height:1.55}.student-preview-quest-footer{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px}.student-preview-quest-footer strong{display:block;color:#111827;font-size:22px}.student-preview-quest-footer span{color:#6b7280;font-size:12px;font-weight:800}.student-preview-video{display:grid;grid-template-columns:minmax(320px,.95fr) minmax(260px,.55fr);gap:16px;border:1px solid #dbe2ea;border-radius:8px;background:#fff;padding:14px}.student-preview-player{min-height:420px;aspect-ratio:16 / 9;overflow:hidden;border-radius:8px;background:#0f172a}.student-preview-player iframe,.student-preview-player video{display:block;width:100%;height:100%;border:0;background:#0f172a}.student-preview-video-placeholder{width:100%;height:100%;min-height:420px;display:grid;place-items:center;align-content:center;gap:8px;color:#dbeafe;text-align:center;padding:18px}.student-preview-video-placeholder strong{color:#fff;font-size:18px}.student-preview-video-placeholder span{color:#bfdbfe}.student-preview-video-copy{display:grid;align-content:center;gap:10px}.student-preview-video-copy span,.student-preview-video-copy p{color:#6b7280}.student-preview-video-copy h3{margin:0;font-size:24px}.student-preview-video-copy p{margin:0;line-height:1.55}.student-preview-video-meta,.student-preview-actions,.student-preview-resource-grid{display:grid;gap:10px}.student-preview-video-meta{grid-template-columns:repeat(2,minmax(0,max-content))}.student-preview-video-meta span{display:inline-flex;min-height:28px;align-items:center;border-radius:999px;background:#eff6ff;color:#1d4ed8;padding:0 10px;font-weight:800}.student-preview-flow,.student-preview-resources{border:1px solid #dbe2ea;border-radius:8px;background:#fff;padding:16px}.student-preview-path{background:#f8fbff}.student-preview-support{background:#fff}.student-preview-missions{background:#fffdf7;border-color:#fde68a}.student-preview-actions{grid-template-columns:repeat(4,minmax(0,1fr));margin-top:12px}.student-preview-action{min-height:86px;border:1px solid #dbe2ea;border-radius:8px;background:#f8fafc;padding:12px;display:grid;gap:8px}.student-preview-action:nth-child(1){border-color:#bfdbfe;background:#eff6ff}.student-preview-action span{width:28px;height:28px;display:grid;place-items:center;border-radius:999px;background:#2563eb;color:#fff;font-weight:900}.student-preview-action strong{color:#111827;line-height:1.3}.student-preview-resource-grid{margin-top:12px;grid-template-columns:repeat(2,minmax(0,1fr))}.student-preview-resource{display:grid;grid-template-columns:34px minmax(0,1fr) auto;gap:12px;align-items:start;min-height:72px;border:1px solid #ebecef;border-radius:8px;background:#f8fafc;padding:12px}.student-preview-support .student-preview-resource{background:#f9fafb}.student-preview-resource>svg{width:34px;height:34px;padding:8px;border-radius:8px;background:#e4f1ff;color:#2563eb}.student-preview-resource span{color:#6b7280;font-size:12px;font-weight:800}.student-preview-resource strong{display:block;color:#111827;margin-top:2px}.student-preview-resource p{margin:5px 0 0;color:#4b5563;line-height:1.45}.student-preview-resource p :first-child{margin-top:0}.student-preview-resource .button{white-space:nowrap}.mission-flow-header{display:flex;align-items:center;justify-content:space-between;gap:14px}.mission-flow-header span{color:#92400e;font-size:13px;font-weight:900}.mission-flow-header h2{margin:2px 0 0;font-size:20px}.mission-flow-score{display:inline-grid;grid-template-columns:auto auto;align-items:center;gap:4px 8px;border:1px solid #fde68a;border-radius:8px;background:#fffbeb;color:#92400e;padding:10px 12px}.mission-flow-score span{grid-column:1 / -1;color:#b45309;font-size:12px}.student-preview-mission-grid{display:grid;gap:12px;margin-top:14px}.student-preview-mission-card{display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:12px;align-items:start;border:1px solid #fde68a;border-radius:8px;background:#fff;padding:14px}.student-preview-mission-step{width:42px;height:42px;display:grid;place-items:center;border-radius:8px;background:#f59e0b;color:#fff;font-size:18px;font-weight:900}.student-preview-mission-card span{color:#92400e;font-size:12px;font-weight:900}.student-preview-mission-card strong{display:block;margin-top:2px;color:#111827}.student-preview-mission-card p{margin:6px 0 0;color:#4b5563;line-height:1.45}.student-preview-mission-card .button{white-space:nowrap}@media(max-width:860px){.toolbar-search,.toolbar-search .input{width:100%}.program-summary,.period-builder,.modal-summary,.new-subject-panel,.subject-design-grid,.subject-hero,.subject-hero-stats,.topic-header,.topic-grid{grid-template-columns:1fr}.subject-hero{display:grid}.student-preview-shell,.student-preview-video,.student-preview-quest-footer,.student-preview-actions,.student-preview-resource-grid,.student-preview-mission-card,.video-content-item,.video-meta-inline-row,.file-content-model-fields,.task-content-model-fields{grid-template-columns:1fr}.video-content-item .video-content-model-fields{grid-column:1 / -1}.student-preview-shell{min-height:0}.student-preview-rail{border-right:0;border-bottom:1px solid #dbe2ea}.student-preview-player,.student-preview-video-placeholder{min-height:260px}.student-preview-resource{grid-template-columns:34px minmax(0,1fr)}.student-preview-resource .button,.student-preview-mission-card .button{grid-column:1 / -1;justify-content:center}.mission-flow-header{align-items:stretch;flex-direction:column}.subject-hero-stats{min-width:0}.topic-objective{grid-column:auto}.modal-backdrop{padding:10px;place-items:stretch}.modal-panel{max-height:calc(100vh - 20px)}.period-subject-picker,.subject-row{grid-template-columns:1fr}.subject-order{display:none}.toggle-field,.icon-button.danger,.form-actions .button{width:100%}.icon-button.danger{justify-content:center}.content-map{grid-template-columns:1fr}}