@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap");:root{--bg-page:#f5f5f7;--bg-card:#fff;--bg-card-hover:#fafafa;--bg-input:#f9fafb;--text-primary:#2d3436;--text-secondary:#636e72;--text-muted:#b2bec3;--text-inverse:#fff;--accent-primary:#7c3aed;--accent-primary-hover:#6d28d9;--accent-primary-light:#f5f3ff;--accent-primary-text:#5b21b6;--color-success:#059669;--color-success-bg:#ecfdf5;--color-warning:#d97706;--color-warning-bg:#fffbeb;--color-error:#dc2626;--color-error-bg:#fef2f2;--color-info:#2563eb;--color-info-bg:#eff6ff;--border-light:#e5e7eb;--border-medium:#d1d5db;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.07),0 2px 4px -2px rgba(0,0,0,.05);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.08),0 4px 6px -4px rgba(0,0,0,.04);--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--font-sans:"Outfit",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--transition-fast:150ms ease;--transition-normal:250ms ease}*{box-sizing:border-box;margin:0;padding:0}body,html{font-family:var(--font-sans);font-size:16px;line-height:1.6;color:var(--text-primary);background:var(--bg-page);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;position:relative;width:100%;max-width:100vw}h1{font-size:2.25rem;font-weight:800;line-height:1.15;letter-spacing:-.03em;color:#0f172a}h2{font-size:1.625rem;font-weight:700;line-height:1.25;letter-spacing:-.02em}h2,h3{color:#1e293b}h3{font-size:1.25rem;line-height:1.35}h3,h4{font-weight:600}h4{font-size:1rem;color:#334155}p{color:#475569}a{color:var(--accent-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-primary-hover)}.card{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border-light);padding:24px;transition:box-shadow var(--transition-normal),transform var(--transition-normal)}.card:hover{box-shadow:var(--shadow-md)}.card-interactive:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:var(--radius-md);font-weight:500;font-size:.875rem;cursor:pointer;border:none;transition:all var(--transition-fast);font-family:var(--font-sans)}.btn-primary{background:var(--accent-primary);color:var(--text-inverse)}.btn-primary:hover{background:var(--accent-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-medium)}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--accent-primary)}.btn-sm{padding:6px 12px;font-size:.8125rem}.btn-icon{padding:8px;border-radius:var(--radius-sm)}.input-field{width:100%;padding:10px 14px;border:1px solid var(--border-light);border-radius:var(--radius-md);font-size:.875rem;font-family:var(--font-sans);background:var(--bg-input);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.input-field:focus{outline:none;border-color:var(--accent-primary);box-shadow:0 0 0 3px var(--accent-primary-light)}.badge{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:100px;font-size:.75rem;font-weight:500}.badge-success{background:var(--color-success-bg);color:var(--color-success)}.badge-warning{background:var(--color-warning-bg);color:var(--color-warning)}.badge-error{background:var(--color-error-bg);color:var(--color-error)}.badge-info{background:var(--color-info-bg);color:var(--color-info)}.badge-neutral{background:#f3f4f6;color:var(--text-secondary)}.kpi-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:16px;gap:16px}.kpi-card{background:var(--bg-card);border-radius:var(--radius-lg);padding:20px;border:1px solid var(--border-light);box-shadow:var(--shadow-sm)}.kpi-card .kpi-label{font-size:.8125rem;color:var(--text-secondary);font-weight:500;margin-bottom:4px}.kpi-card .kpi-value{font-size:1.75rem;font-weight:700;color:var(--text-primary)}.kpi-card .kpi-sub{font-size:.75rem;color:var(--text-muted);margin-top:4px}.progress-bar{height:8px;background:#e5e7eb;border-radius:100px;overflow:hidden}.progress-bar-fill{height:100%;border-radius:100px;background:linear-gradient(90deg,var(--accent-primary),#818cf8);transition:width var(--transition-normal)}.inline-banner{display:flex;align-items:flex-start;gap:12px;padding:12px 16px;border-radius:var(--radius-md);font-size:.875rem;margin-bottom:16px;animation:slideIn .3s ease}.inline-banner-success{background:var(--color-success-bg);color:var(--color-success);border-left:3px solid var(--color-success)}.inline-banner-warning{background:var(--color-warning-bg);color:var(--color-warning);border-left:3px solid var(--color-warning)}.inline-banner-error{background:var(--color-error-bg);color:var(--color-error);border-left:3px solid var(--color-error)}.inline-banner-info{background:var(--color-info-bg);color:var(--color-info);border-left:3px solid var(--color-info)}.inline-banner .dismiss-btn{margin-left:auto;background:none;border:none;cursor:pointer;opacity:.6;font-size:1rem;color:inherit}.inline-banner .dismiss-btn:hover{opacity:1}.slide-drawer{position:fixed;top:0;right:-460px;width:460px;max-width:95vw;height:100vh;background:linear-gradient(180deg,#101622,#0b0e14);border-left:1px solid rgba(124,77,255,.2);box-shadow:-10px 0 30px rgba(0,0,0,.5);z-index:100;transition:right .4s cubic-bezier(.16,1,.3,1);padding:32px 28px;overflow-y:auto;color:#f1f5f9}.slide-drawer.open{right:0}.slide-drawer-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(11,15,23,.6);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:99;opacity:0;pointer-events:none;transition:opacity .4s ease}.slide-drawer-overlay.open{opacity:1;pointer-events:all}.module-list{display:flex;flex-direction:column;gap:8px}.module-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--radius-md);border:1px solid var(--border-light);background:var(--bg-card);cursor:pointer;transition:all var(--transition-fast)}.module-item.active,.module-item:hover{border-color:var(--accent-primary);background:var(--accent-primary-light)}.module-item.completed{border-left:3px solid var(--color-success)}.module-item .module-order{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.875rem;background:#f3f4f6;color:var(--text-secondary);flex-shrink:0}.module-item.completed .module-order{background:var(--color-success-bg);color:var(--color-success)}.module-item .module-title{font-weight:500;font-size:.9375rem}.module-item .module-status{margin-left:auto;font-size:.75rem}.drag-handle{cursor:-webkit-grab;cursor:grab;color:var(--text-muted);padding:4px;display:flex;align-items:center;-webkit-user-select:none;-moz-user-select:none;user-select:none}.drag-handle:active{cursor:-webkit-grabbing;cursor:grabbing}.drag-handle svg{width:18px;height:18px}.dragging{opacity:.5;border-style:dashed}.drag-over{border-color:var(--accent-primary);background:var(--accent-primary-light)}.reorder-controls{display:flex;gap:4px}.reorder-btn{width:28px;height:28px;border-radius:var(--radius-sm);border:1px solid var(--border-light);background:var(--bg-card);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.75rem;color:var(--text-secondary);transition:all var(--transition-fast)}.reorder-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.reorder-btn:disabled{opacity:.3;cursor:not-allowed}.classroom-card{background:var(--bg-card);border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.05);border:1px solid var(--border-light);transition:all var(--transition-normal)}.classroom-card:hover{box-shadow:0 12px 30px rgba(124,77,255,.12);transform:translateY(-4px);border-color:var(--accent-primary)}.classroom-card-image{width:100%;height:200px;object-fit:cover;background:linear-gradient(135deg,var(--accent-primary-light),#ede9fe)}.classroom-card-body{padding:24px}.classroom-card-title{font-size:1.25rem;font-weight:700;color:#0f172a;margin-bottom:10px;line-height:1.3}.classroom-card-desc{font-size:.9rem;color:#475569;margin-bottom:20px;line-height:1.6}.classroom-card-stats{display:flex;gap:16px;font-size:.8125rem;color:var(--text-muted)}.classroom-card-stats span{display:flex;align-items:center;gap:4px}.alert-item{display:flex;gap:12px;padding:14px 16px;border-radius:var(--radius-md);border:1px solid var(--border-light);background:var(--bg-card);transition:background var(--transition-fast)}.alert-item.unread{background:var(--accent-primary-light);border-color:var(--accent-primary)}.alert-item .alert-dot{width:8px;height:8px;border-radius:50%;background:var(--accent-primary);flex-shrink:0;margin-top:6px}.alert-item.read .alert-dot{background:transparent}.video-embed{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:var(--radius-md);background:#000}.video-embed iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:none}.container{max-width:1200px;margin:0 auto;padding:0 24px}.container-narrow{max-width:800px;margin:0 auto;padding:0 24px}.page-header{padding:32px 0 24px;border-bottom:1px solid var(--border-light);margin-bottom:32px;background:var(--bg-card)}.page-header .container{display:flex;align-items:center;justify-content:space-between}.grid-2{grid-template-columns:repeat(auto-fill,minmax(340px,1fr));grid-gap:24px}.grid-2,.grid-3{display:grid;gap:24px}.grid-3{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:24px}.nav-bar{background:var(--bg-card);border-bottom:1px solid var(--border-light);padding:0 24px;position:-webkit-sticky;position:sticky;top:0;z-index:50}.nav-bar-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;height:64px;gap:32px}.nav-logo{font-weight:700;font-size:1.125rem;color:var(--text-primary)}.nav-links{display:flex;gap:8px}.nav-link{padding:8px 16px;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;color:var(--text-secondary);transition:all var(--transition-fast)}.nav-link.active,.nav-link:hover{color:var(--accent-primary);background:var(--accent-primary-light)}.empty-state{text-align:center;padding:48px 24px;color:var(--text-muted)}.empty-state-icon{font-size:3rem;margin-bottom:16px;opacity:.4}.empty-state-title{font-size:1.125rem;font-weight:600;color:var(--text-secondary);margin-bottom:8px}@keyframes slideIn{0%{transform:translateY(-8px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@media (max-width:768px){h1{font-size:1.5rem}.grid-2,.grid-3{grid-template-columns:1fr}.kpi-grid{grid-template-columns:repeat(2,1fr)}.container{padding:0 16px}.slide-drawer{width:100%!important;max-width:100vw!important;right:-100%!important}.slide-drawer.open{right:0!important}.admin-layout-wrapper{flex-direction:column!important}.admin-sidebar{width:100%!important;height:auto!important;position:relative!important;border-bottom:1px solid hsla(0,0%,100%,.1);padding:16px 0!important}.admin-sidebar nav{flex-direction:row!important;flex-wrap:wrap;gap:8px!important;padding:12px 16px!important}.admin-nav-link{padding:6px 12px!important;font-size:.75rem!important}.admin-content{padding:20px 16px!important}.admin-header-row{flex-direction:column!important;align-items:stretch!important;gap:12px!important}.admin-header-row .btn{align-self:flex-start}.admin-table,.admin-table tbody,.admin-table td,.admin-table thead,.admin-table tr{display:block;width:100%}.admin-table thead{display:none}.admin-table tr{margin-bottom:16px;border:1px solid var(--border-light);border-radius:var(--radius-md);padding:12px;background:var(--bg-card)}.admin-table td{display:flex;justify-content:space-between;align-items:center;padding:8px 4px!important;border-bottom:1px dashed var(--border-light)!important;text-align:right}.admin-table td:last-child{border-bottom:none!important;justify-content:flex-start;flex-wrap:wrap;gap:8px}.admin-table td:before{content:attr(data-label);font-weight:600;color:var(--text-secondary);font-size:.8125rem;text-align:left}.module-item{flex-direction:column!important;align-items:stretch!important;gap:12px!important;padding:16px!important}.module-item>div:first-child{display:none!important}.module-item .module-status{margin-left:0!important;margin-top:4px}.module-item>div:last-child{flex-wrap:wrap;justify-content:flex-start;gap:8px!important;margin-top:4px}.nav-bar{padding:0 16px!important;height:auto!important}.nav-bar-inner{flex-direction:column!important;height:auto!important;padding:16px 0!important;gap:12px!important;align-items:center!important;text-align:center!important}.nav-bar-inner>div{margin-left:0!important;margin-right:0!important;flex-wrap:wrap!important;gap:8px!important}.nav-bar-inner>div,.nav-links{justify-content:center!important;width:100%!important}.nav-links{margin:8px 0!important}.classroom-header-inner{text-align:center!important;gap:24px!important}.classroom-header-inner,.classroom-header-inner>div{flex-direction:column!important;align-items:center!important}.classroom-header-inner>div{width:100%!important;min-width:0!important;display:flex!important;justify-content:center!important}.classroom-header-inner .classroom-card-image{width:100%!important;max-width:320px!important;height:180px!important}}@media (max-width:480px){.kpi-grid{grid-template-columns:1fr}.nav-links{display:none!important}}