.admin-shell,.admin-gate{--admin-accent:#087b70;--admin-bg:#f3f6fa;--admin-line:#dce3ec;--admin-text:#132a47;--admin-muted:#61718a;color:var(--admin-text);font-family:Arial,Segoe UI,sans-serif;font-size:16px;line-height:1.5}.admin-shell *,.admin-gate *{box-sizing:border-box}.admin-shell a,.admin-gate a{color:inherit}.admin-shell button,.admin-gate button,.admin-shell input,.admin-gate input,.admin-shell select,.admin-shell textarea{font:inherit}.admin-shell button,.admin-gate button{cursor:pointer}.admin-shell button:disabled,.admin-gate button:disabled{cursor:not-allowed;opacity:.5}:is(.admin-shell :focus-visible,.admin-gate :focus-visible){outline-offset:3px;outline:3px solid #e5ad15}.admin-shell{background:var(--admin-bg);grid-template-columns:246px minmax(0,1fr);min-height:100vh;display:grid}.admin-sidebar{color:#fff;background:#102b4d;flex-direction:column;gap:30px;height:100vh;padding:32px 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a{color:#b9cde4;font-size:14px}.admin-workspace{min-width:0}.admin-toolbar{z-index:15;border-bottom:1px solid var(--admin-line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#fffffff5;justify-content:space-between;align-items:center;gap:18px;min-height:90px;padding:18px 36px;display:flex;position:sticky;top:0}.admin-toolbar>div:first-child{gap:4px;display:grid}.admin-toolbar small{color:var(--admin-muted);font-size:13px}.admin-save-state{color:var(--admin-accent);font-size:14px;font-weight:700}.admin-save-state.unsaved{color:#926100}.admin-toolbar-actions,.admin-inline-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.admin-primary,.admin-secondary{border:1px solid #0000;border-radius:9px;justify-content:center;align-items:center;min-height:44px;padding:11px 18px;font-weight:700;text-decoration:none;display:inline-flex;font-size:14px!important}.admin-primary{background:var(--admin-accent);color:#fff!important}.admin-primary:hover{background:#076b62}.admin-secondary{color:#1b3d63;background:#fff;border-color:#ccd6e3}.admin-secondary:hover{background:#f2f6fa}.admin-content{max-width:1420px;margin:auto;padding:32px 36px 80px}.admin-page-heading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px;display:flex}.admin-kicker{letter-spacing:.08em;color:var(--admin-accent);margin:0 0 8px;font-size:12px;font-weight:700}.admin-page-heading h1{letter-spacing:-.025em;margin:0 0 6px;font-size:32px;line-height:1.2}.admin-page-heading p:last-child{color:var(--admin-muted);margin:0}.admin-external{white-space:nowrap;font-size:14px;font-weight:700;text-decoration:none}.admin-editor{border:0;gap:24px;min-width:0;margin:0;padding:0;display:grid}.admin-panel{border:1px solid var(--admin-line);background:#fff;border-radius:14px;min-width:0;padding:26px}.admin-panel-heading{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:22px;display:flex}.admin-panel h2,.admin-list-heading h2{letter-spacing:-.02em;margin:0;font-size:20px}.admin-panel-heading p{color:var(--admin-muted);max-width:700px;margin:6px 0 0;font-size:14px}.admin-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.admin-stats article{border:1px solid var(--admin-line);background:#fff;border-radius:13px;gap:8px;padding:23px;display:grid}.admin-stats span{color:var(--admin-muted);font-size:14px}.admin-stats strong{font-size:36px;line-height:1.2}.admin-stats .admin-stat-date{font-size:26px}.admin-stats small{color:var(--admin-muted);font-size:13px}.admin-steps{grid-template-columns:repeat(3,1fr);gap:25px;display:grid}.admin-steps article>span{color:var(--admin-accent);font-size:14px;font-weight:700;display:block}.admin-steps h3{margin:7px 0;font-size:17px}.admin-steps p{color:var(--admin-muted);margin:0;font-size:14px}.admin-preview-links{border-top:1px solid var(--admin-line);flex-wrap:wrap;gap:10px;margin-top:24px;padding-top:24px;display:flex}.admin-preview-links a{color:#07665e;background:#eaf6f3;border-radius:8px;padding:10px 14px;font-size:14px;font-weight:700;text-decoration:none}.admin-quick-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.admin-quick-grid button{border:1px solid var(--admin-line);text-align:left;color:var(--admin-text);background:#fff;border-radius:13px;gap:10px;padding:23px;display:grid}.admin-quick-grid button:hover{border-color:var(--admin-accent)}.admin-quick-grid button>span{color:var(--admin-accent);font-size:28px}.admin-quick-grid strong{font-size:17px}.admin-quick-grid 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button{color:#234369;background:#fff;border:1px solid #d4dfeb;border-radius:8px;min-height:44px;padding:9px 17px}.admin-class-chips button.active{color:#fff;background:#102b4d;border-color:#102b4d}.admin-details{border-top:1px solid var(--admin-line);margin-top:22px;padding-top:17px}.admin-details summary{cursor:pointer;color:#365679;margin-bottom:15px;font-size:14px;font-weight:700}.admin-details p{color:var(--admin-muted);font-size:14px}.admin-details .admin-form-grid{grid-template-columns:1fr 1fr auto}.align-end{align-self:end}.admin-class-management{grid-template-columns:1fr 1fr 1fr auto;align-items:end;gap:16px;margin-top:20px;display:grid}.admin-day-tabs{border-bottom:1px solid var(--admin-line);flex-wrap:wrap;gap:6px;margin-bottom:8px;padding-bottom:15px;display:flex}.admin-day-tabs button{color:#50627b;background:#f3f6fa;border:0;border-radius:7px;padding:10px 14px;font-size:14px}.admin-day-tabs button.active{color:#07665e;background:#e0f2ed;font-weight:700}.admin-lesson{border-bottom:1px solid #edf1f6;grid-template-columns:96px minmax(0,1fr) 135px 75px;align-items:center;gap:15px;padding:18px 0;display:grid}.admin-lesson-number{gap:4px;display:grid}.admin-lesson-number strong{background:#f0f4fa;border-radius:10px;place-items:center;width:38px;height:38px;font-size:20px;display:grid}.admin-lesson-number small{color:var(--admin-muted);font-size:12px}.admin-lesson .admin-field>span{font-size:12px;font-weight:400}.admin-text-danger,.admin-link-button{color:#406286;text-underline-offset:3px;text-align:left;background:0 0;border:0;padding:7px 0;text-decoration:underline;font-size:14px!important}.admin-text-danger{color:#af303b}.admin-hint{color:var(--admin-muted);margin:18px 0 0;font-size:14px}.admin-info{border-left:4px solid var(--admin-accent);background:#e6f3ef;border-radius:5px;padding:20px 24px;font-size:15px}.admin-bell{grid-template-columns:90px 1fr 1fr 180px;align-items:center;gap:22px;margin-bottom:16px;display:grid}.admin-bell>span{color:var(--admin-muted);font-size:14px}.admin-bell>strong{font-size:16px}.admin-document-workspace{grid-template-columns:290px minmax(0,1fr);align-items:start;gap:20px;display:grid}.admin-document-list{border:1px solid var(--admin-line);background:#fff;border-radius:14px;overflow:hidden}.admin-list-heading{border-bottom:1px solid var(--admin-line);gap:14px;padding:20px;display:grid}.admin-list-heading h2{font-size:17px}.admin-list-heading h2 span{color:var(--admin-muted);font-weight:400}.admin-doc-item{text-align:left;width:100%;color:var(--admin-text);background:#fff;border:0;border-bottom:1px solid #ecf0f5;align-items:center;gap:12px;padding:17px;display:flex}.admin-doc-item.active{box-shadow:inset 3px 0 var(--admin-accent);background:#eaf4f2}.admin-doc-item img{object-fit:contain;border:1px solid #d9e0e7;flex-shrink:0;width:38px;height:52px}.admin-doc-item>span{gap:6px;display:grid}.admin-doc-item 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1fr;gap:15px}.admin-bell>span{grid-column:2/-1}.admin-pair:has(.admin-field:nth-child(3)){grid-template-columns:1fr 1fr}.admin-lesson{grid-template-columns:78px minmax(0,1fr) 100px}.admin-lesson>.admin-link-button{grid-column:2/-1;padding:0}.admin-class-management{grid-template-columns:1fr 1fr}}@media (max-width:850px){.admin-shell{display:block}.admin-sidebar{gap:20px;height:auto;padding:20px;position:static}.admin-sidebar>.admin-logo{font-size:30px}.admin-sidebar>.admin-logo span{font-size:12px}.admin-sidebar-caption,.admin-user{display:none}.admin-sidebar nav{gap:6px;margin:0;display:flex;overflow-x:auto}.admin-sidebar nav button{white-space:nowrap;padding:9px 13px}.admin-sidebar nav button span{width:17px;font-size:17px}.admin-toolbar{padding:15px 20px}.admin-content{padding:25px 20px 50px}.admin-stats{gap:10px}.admin-stats article{padding:17px}.admin-document-workspace{grid-template-columns:240px minmax(0,1fr)}.admin-document-workspace .admin-form-grid{grid-template-columns:1fr}.admin-page-heading h1{font-size:29px}.admin-page-heading{align-items:flex-start}.admin-external{font-size:13px}}@media (max-width:640px){.admin-toolbar{flex-wrap:wrap;gap:10px}.admin-toolbar>div:first-child{gap:1px}.admin-toolbar-actions{width:100%}.admin-toolbar-actions button{flex:1;padding:10px}.admin-stats{grid-template-columns:1fr}.admin-stats article{grid-template-columns:1fr auto;align-items:center;gap:2px 15px}.admin-stats strong{grid-area:1/2/3;font-size:30px}.admin-stats .admin-stat-date{font-size:19px}.admin-stats small{grid-row:2}.admin-page-heading{display:block}.admin-external{margin-top:13px;display:inline-block}.admin-content{padding:23px 15px 45px}.admin-panel{padding:20px 16px}.admin-panel-heading{flex-wrap:wrap}.admin-form-grid,.admin-steps,.admin-quick-grid,.admin-document-workspace,.admin-switch-grid{grid-template-columns:1fr}.admin-steps{gap:20px}.admin-quick-grid button{grid-template-columns:35px 1fr;gap:4px 10px;padding:18px}.admin-quick-grid button>span{grid-row:1/3}.admin-quick-grid small{grid-column:2}.admin-details .admin-form-grid{grid-template-columns:1fr 1fr}.admin-details .admin-form-grid>button{grid-column:1/-1}.admin-lesson{grid-template-columns:55px minmax(0,1fr);gap:10px}.admin-lesson .admin-field:nth-of-type(2){grid-column:2}.admin-lesson-number{align-self:start;margin-top:25px}.admin-lesson-number small{font-size:11px}.admin-lesson>.admin-link-button{grid-column:2}.admin-day-tabs{gap:5px}.admin-day-tabs button{padding:9px;font-size:13px}.admin-bell{grid-template-columns:1fr 1fr}.admin-bell>strong,.admin-bell>span{grid-column:1/-1}.admin-document-list{max-height:390px;overflow-y:auto}:is(.admin-pair,.admin-pair:has(.admin-field:nth-child(3))){grid-template-columns:1fr}.admin-history article{flex-direction:column;align-items:flex-start}.admin-invite-form{grid-template-columns:1fr}.admin-gate-card{padding:28px 23px}.admin-gate h1{font-size:27px}.admin-gate .admin-logo{margin-bottom:32px}}.admin-sidebar{overflow-y:auto}.admin-event-toggle{align-items:center;gap:12px;margin:0 0 24px;font-weight:700;display:flex}.admin-event-toggle input{width:20px;height:20px;accent-color:var(--admin-accent)}.admin-event-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;display:grid}.admin-event-fields{gap:18px;display:grid}.admin-event-preview{min-width:0}.admin-event-preview h3{margin:0 0 12px;font-size:16px}.admin-event-preview img,.admin-event-empty{aspect-ratio:16/9;object-fit:contain;background:#102b4d;border-radius:12px;width:100%}.admin-event-empty{color:#fff;text-align:center;place-items:center;padding:24px;display:grid}.admin-event-preview p{color:var(--admin-muted);font-size:14px}@media (max-width:1000px){.admin-event-grid{grid-template-columns:1fr}}.admin-event-upload{position:relative}.admin-event-upload input{opacity:0;width:1px;height:1px;position:absolute}.admin-event-upload .admin-secondary{cursor:pointer;justify-self:start}.admin-event-upload:focus-within .admin-secondary{outline-offset:3px;outline:3px solid #e5ad15}