:root{--apex-navy:#061f49;--apex-navy-2:#0b356d;--apex-gold:#dda20c;--apex-gold-soft:#fff6dc;--apex-bg:#f4f7fb;--apex-line:#dce4ef;--apex-text:#102447;--apex-muted:#66758d;--sidebar-width:272px;--sidebar-mini:82px}
.portal-shell{display:grid;grid-template-columns:var(--sidebar-width) minmax(0,1fr);min-height:100vh;transition:grid-template-columns .24s ease;background:var(--apex-bg)}
.portal-shell.sidebar-collapsed{grid-template-columns:var(--sidebar-mini) minmax(0,1fr)}
.sidebar{width:auto;min-width:0;display:flex;flex-direction:column;background:linear-gradient(180deg,#041934,#082b5d);overflow:hidden;transition:.24s ease;z-index:120}
.sidebar-head{display:flex;align-items:center;border-bottom:1px solid rgba(255,255,255,.09);padding:10px 10px 8px}
.sidebar-head .portal-brand{flex:1;min-width:0;padding:0;border:0}.sidebar-head .portal-brand img{width:55px;height:55px;object-fit:contain}.sidebar-head .portal-brand span{min-width:0}.sidebar-head .portal-brand strong{font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-collapse{border:0;background:rgba(255,255,255,.08);color:#fff;width:32px;height:32px;border-radius:8px;cursor:pointer;flex:none}
.sidebar nav{padding:10px 9px;overflow-y:auto;flex:1}.sidebar-group{margin:0 0 13px}.sidebar-group>small{display:block;padding:7px 11px 4px;color:#7f9fc7;font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.sidebar-group>a{display:flex;align-items:center;gap:12px;min-height:42px;padding:8px 12px;color:#dce8f7;border-radius:10px;margin:2px 0;text-decoration:none;white-space:nowrap}.sidebar-group>a i{width:22px;text-align:center;font-size:16px;color:#9eb7d6}.sidebar-group>a:hover,.sidebar-group>a.active{background:linear-gradient(90deg,#d89a00,#f4be39);color:#061f49}.sidebar-group>a:hover i,.sidebar-group>a.active i{color:#061f49}.sidebar-group>a span{overflow:hidden;text-overflow:ellipsis}
.sidebar-collapsed .sidebar-head .portal-brand span,.sidebar-collapsed .sidebar-group>small,.sidebar-collapsed .sidebar-group>a span,.sidebar-collapsed .sidebar-motto,.sidebar-collapsed .sidebar-developer,.sidebar-collapsed .logout span{display:none}.sidebar-collapsed .sidebar-head{flex-direction:column;padding:10px 7px}.sidebar-collapsed .sidebar-head .portal-brand{justify-content:center}.sidebar-collapsed .sidebar-head .portal-brand img{width:50px;height:50px}.sidebar-collapsed .sidebar-collapse i{transform:rotate(180deg)}.sidebar-collapsed .sidebar-group>a{justify-content:center;padding:8px}.sidebar-collapsed .sidebar-group>a i{font-size:19px}.sidebar-collapsed .logout{justify-content:center}
.topbar{min-height:76px;background:#fff;border-bottom:1px solid var(--apex-line);display:flex;align-items:center;gap:16px;padding:0 20px;position:sticky;top:0;z-index:90}.desktop-portal-brand{display:none!important}.desktop-nav.smart-navigation{display:flex!important;align-items:center;gap:4px;min-width:0;flex:1;overflow:visible}.smart-nav-direct,.smart-menu>summary{display:flex;align-items:center;gap:7px;padding:11px 10px;color:var(--apex-text);font-size:13px;font-weight:700;border-radius:9px;text-decoration:none;cursor:pointer;list-style:none}.smart-nav-direct:hover,.smart-nav-direct.active,.smart-menu.active>summary,.smart-menu[open]>summary{background:var(--apex-gold-soft);color:#8d6200}.smart-menu{position:relative}.smart-menu summary::-webkit-details-marker{display:none}.smart-menu>summary i:last-child{font-size:9px;margin-left:2px}.smart-submenu{position:absolute;top:calc(100% + 9px);left:0;width:270px;padding:9px;background:#fff;border:1px solid var(--apex-line);box-shadow:0 16px 40px rgba(6,31,73,.15);border-radius:14px;display:grid;gap:3px;z-index:150}.smart-submenu a{display:flex;align-items:center;gap:11px;padding:10px;border-radius:9px;color:var(--apex-text);text-decoration:none}.smart-submenu a:hover,.smart-submenu a.active{background:#f4f7fb;color:#8d6200}.smart-submenu a>i{width:24px;text-align:center;color:var(--apex-navy)}.smart-submenu a span{display:grid}.smart-submenu a b{font-size:13px}.smart-submenu a small{font-size:11px;color:var(--apex-muted)}
.top-title{margin-left:auto;min-width:145px}.top-actions{flex:none}.user-chip{min-width:190px;justify-content:flex-start}.user-chip>em{margin-left:auto}.profile-popup{width:340px;right:0;top:calc(100% + 10px)}.profile-popup>a{display:flex!important;align-items:center;gap:12px}.profile-popup>a>i{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:#eef3f9;color:var(--apex-navy)}.profile-popup>a>span{display:grid;flex:1}.profile-popup a b{display:flex;align-items:center;gap:7px}.profile-popup a b em{font-style:normal;background:var(--apex-gold);color:#fff;border-radius:999px;padding:1px 6px;font-size:10px}.profile-signout>i{background:#fff0f0!important;color:#b42318!important}
.content{padding:22px 24px 95px}.page-title{gap:15px}.page-title h1,.class-hero h1{letter-spacing:-.025em}.panel{border:1px solid var(--apex-line);box-shadow:0 5px 15px rgba(26,52,87,.045)}
.class-tabs{display:flex;gap:5px;overflow-x:auto;padding:5px;background:#fff;border:1px solid var(--apex-line);border-radius:13px;margin:14px 0 20px}.class-tabs a{display:flex;align-items:center;gap:7px;white-space:nowrap;border-radius:9px}.class-tabs a.active{background:var(--apex-navy);color:#fff}.class-tabs a i{font-size:13px}
.v240-filter-tabs{display:flex;gap:8px;flex-wrap:wrap;background:#fff;border:1px solid var(--apex-line);border-radius:13px;padding:6px;margin:0 0 18px}.v240-filter-tabs button{border:0;background:transparent;padding:11px 17px;border-radius:9px;color:#52627a;font-weight:750;cursor:pointer}.v240-filter-tabs button.active{background:var(--apex-navy);color:#fff}.v240-filter-tabs button i{margin-right:7px}.v240-class-search{display:flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--apex-line);border-radius:11px;padding:0 12px;max-width:330px;margin-left:auto}.v240-class-search input{border:0;outline:0;padding:11px 0;width:100%;background:transparent}
.v240-classes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:15px}.v240-class-card{background:#fff;border:1px solid var(--apex-line);border-radius:15px;padding:18px;text-decoration:none;color:var(--apex-text);display:grid;grid-template-columns:48px minmax(0,1fr) 22px;gap:12px;align-items:center;transition:.2s}.v240-class-card:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(6,31,73,.09);border-color:#d4ad42}.v240-class-card>i:first-child{width:48px;height:48px;border-radius:13px;background:var(--apex-gold-soft);color:#9b6b00;display:grid;place-items:center;font-size:20px}.v240-class-card h2{margin:2px 0 4px;font-size:18px}.v240-class-card span,.v240-class-card p{font-size:12px;color:var(--apex-muted);margin:0}.v240-class-card.hidden{display:none}
.class-action-grid a{position:relative;padding-left:58px}.class-action-grid a>i{position:absolute;left:18px;top:20px;width:30px;height:30px;border-radius:9px;background:var(--apex-gold-soft);display:grid;place-items:center;color:#936500}.class-action-grid a b{display:block}
.smart-table-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:12px 14px;border-bottom:1px solid var(--apex-line);background:#fbfcfe}.smart-table-search{display:flex;align-items:center;gap:8px;min-width:260px;max-width:420px;flex:1;background:#fff;border:1px solid var(--apex-line);border-radius:9px;padding:0 11px}.smart-table-search input{width:100%;padding:9px 0;border:0;outline:0;background:transparent}.smart-table-toolbar select{padding:9px 28px 9px 10px;border:1px solid var(--apex-line);border-radius:9px;background:#fff}.smart-table-count{font-size:12px;color:var(--apex-muted);margin-left:auto}.smart-table-empty{text-align:center!important;padding:28px!important;color:var(--apex-muted)}
.row-actions{display:flex;gap:5px;flex-wrap:wrap}.row-actions form{display:inline}.btn i{margin-right:6px}.btn.icon-only i{margin:0}.danger-outline{border:1px solid #f3b8b8;color:#b42318;background:#fff}.danger-outline:hover{background:#fff0f0}
.management-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.management-grid>.panel.full{grid-column:1/-1}.management-card-list{display:grid;gap:9px}.management-row{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;border:1px solid var(--apex-line);border-radius:11px;padding:12px}.management-row h3{margin:0 0 3px;font-size:15px}.management-row p{margin:0;color:var(--apex-muted);font-size:12px}.management-row .row-actions{justify-content:flex-end}
.readonly-field{background:#eef2f7!important;color:#64748b!important;cursor:not-allowed}.form-note{display:block;font-size:11px;color:var(--apex-muted);margin-top:4px}.teacher-profile-hero{display:grid;grid-template-columns:150px 1fr;gap:24px;align-items:center;padding:28px;background:linear-gradient(135deg,#061f49,#0a3977);color:#fff;border-radius:20px}.teacher-profile-hero img,.teacher-profile-hero .avatar-fallback{width:145px;height:145px;border-radius:50%;object-fit:cover;border:5px solid rgba(255,255,255,.85)}.teacher-profile-hero .avatar-fallback{display:grid;place-items:center;background:#fff;color:var(--apex-navy);font-size:46px;font-weight:800}.teacher-profile-hero h1{margin:5px 0}.teacher-profile-hero p{color:#dbe8fa}.teacher-social{display:flex;gap:9px}.teacher-social a{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.14);color:#fff}.teacher-detail-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;margin-top:18px}.subject-tags{display:flex;gap:7px;flex-wrap:wrap}.subject-tags span{background:var(--apex-gold-soft);color:#855e00;padding:7px 10px;border-radius:999px;font-size:12px;font-weight:700}
.child-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:15px}.child-card{background:#fff;border:1px solid var(--apex-line);border-radius:16px;padding:18px}.child-card-head{display:flex;gap:12px;align-items:center}.child-card-head img,.child-card-head span{width:55px;height:55px;border-radius:50%;object-fit:cover;background:#eef3f9;display:grid;place-items:center;font-weight:800;color:var(--apex-navy)}.child-card h2{margin:0}.child-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:15px 0}.child-stats div{padding:10px;background:#f7f9fc;border-radius:9px}.child-stats small{display:block;color:var(--apex-muted)}.child-actions{display:flex;gap:7px;flex-wrap:wrap}
.receipt-status{font-size:12px;font-weight:800;padding:5px 9px;border-radius:999px;text-transform:uppercase}.receipt-status.paid{background:#dcfce7;color:#166534}.receipt-status.pending,.receipt-status.partial{background:#fee2e2;color:#991b1b}.invoice-actions{display:flex;gap:6px;flex-wrap:wrap}
.empty-state{text-align:center;padding:55px}.empty-state>i{font-size:42px;color:var(--apex-gold)}
@media(max-width:1280px){.desktop-nav.smart-navigation{display:none!important}.desktop-portal-brand{display:flex!important}.top-title{display:none}}
@media(max-width:1050px){.portal-shell,.portal-shell.sidebar-collapsed{display:block}.sidebar{position:fixed;left:-290px;top:0;bottom:0;width:280px;transition:left .24s}.sidebar.open{left:0}.sidebar-collapse{display:none}.content{padding:18px 15px 95px}.management-grid,.teacher-detail-grid{grid-template-columns:1fr}.topbar{padding:0 13px}.user-chip{min-width:0}.user-chip b{display:none}}
@media(max-width:640px){.v240-filter-tabs{display:grid;grid-template-columns:repeat(2,1fr)}.v240-filter-tabs button{padding:10px 7px}.v240-class-search{max-width:none;margin:0 0 13px}.teacher-profile-hero{grid-template-columns:1fr;text-align:center}.teacher-profile-hero img,.teacher-profile-hero .avatar-fallback{margin:auto}.teacher-social{justify-content:center}.child-stats{grid-template-columns:1fr}.profile-popup{width:min(340px,calc(100vw - 24px));position:fixed;right:12px;top:76px}.smart-table-toolbar{align-items:stretch}.smart-table-search{min-width:100%}.smart-table-count{margin-left:0}.class-action-grid a{padding-left:53px}}

.child-select-bar{display:flex;justify-content:flex-end;margin:-6px 0 18px}.child-select-bar label{display:flex;align-items:center;gap:10px;background:#fff;border:1px solid #dfe5ec;border-radius:14px;padding:8px 12px;font-weight:700;color:#082858}.child-select-bar select{min-width:220px;border:0;background:#f5f8fc;padding:9px;border-radius:9px}.schedule-day-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.schedule-row{display:flex;gap:14px;padding:13px 0;border-bottom:1px solid #edf0f4}.schedule-row:last-child{border-bottom:0}.schedule-row time{width:90px;color:#082858;font-weight:800}.schedule-row time small,.schedule-row div span{display:block;color:#6b778a;font-weight:500;font-size:.82rem}.schedule-row div b{color:#0a244d}@media(max-width:760px){.child-select-bar{justify-content:stretch}.child-select-bar label{width:100%;flex-wrap:wrap}.child-select-bar select{width:100%}.schedule-day-grid{grid-template-columns:1fr}}