:root{--admin-brand:var(--color-brand-primary);--admin-brand-strong:var(--color-brand-primary-hover);--admin-brand-soft:#eaf1fa;--admin-brand-softer:#f4f8fd;--admin-brand-contrast:#fff;--admin-accent:var(--color-brand-accent);--admin-accent-soft:#e7f6f6;--admin-bg:#f2f5f9;--admin-surface:#fff;--admin-surface-sunken:#f7f9fc;--admin-surface-hover:#f4f7fb;--admin-surface-active:#eaf0f8;--admin-border:#dfe5ed;--admin-border-subtle:#ebeff5;--admin-border-strong:#c6d0de;--admin-divider:#edf1f6;--admin-text:#0f1f36;--admin-text-secondary:#44536b;--admin-muted:#6b7a91;--admin-faint:#8d99ab;--admin-success:var(--color-success);--admin-success-soft:#edfbf1;--admin-success-border:#b8ebc8;--admin-warning:var(--color-warning);--admin-warning-soft:#fff8ed;--admin-warning-border:#fadfb4;--admin-danger:var(--color-danger);--admin-danger-soft:#fef2f2;--admin-danger-border:#f6c9c9;--admin-info:var(--color-info);--admin-info-soft:#f0f9ff;--admin-info-border:#bae0f5;--admin-topbar-bg:#ffffffdb;--admin-scrim:#0f1f3673;--admin-focus-ring:#102f5e29;--admin-skeleton-base:#e9eef4;--admin-skeleton-sheen:#ffffffb8;--admin-radius-xs:4px;--admin-radius-sm:6px;--admin-radius-md:8px;--admin-radius-lg:10px;--admin-radius:var(--admin-radius-lg);--admin-shadow-xs:0 1px 1px #0f1f360a;--admin-shadow-sm:0 1px 2px #0f1f360f, 0 1px 3px #0f1f360a;--admin-shadow-md:0 2px 4px #0f1f360f, 0 4px 12px #0f1f360f;--admin-shadow-lg:0 8px 16px #0f1f3614, 0 24px 48px #0f1f3624;--admin-ease:cubic-bezier(.2, 0, 0, 1);--admin-dur-fast:.12s;--admin-dur:.18s;--admin-font:var(--font-admin), var(--font-inter), -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif}.admin-shell,.admin-login-page,.admin-auth-loading,.admin-modal-overlay{font-family:var(--admin-font);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility}.admin-shell input,.admin-shell button,.admin-shell select,.admin-shell textarea,.admin-shell table,.admin-modal-overlay input,.admin-modal-overlay button,.admin-modal-overlay select,.admin-modal-overlay textarea,.admin-modal-overlay table,.admin-login-page input,.admin-login-page button,.admin-login-page select,.admin-login-page textarea{font-family:var(--admin-font);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.admin-shell strong,.admin-shell b,.admin-modal-overlay strong,.admin-modal-overlay b,.admin-login-page strong,.admin-login-page b{font-weight:600}.admin-shell h1,.admin-shell h2,.admin-shell h3,.admin-shell h4,.admin-shell h5,.admin-shell h6,.admin-modal-overlay h1,.admin-modal-overlay h2,.admin-modal-overlay h3,.admin-modal-overlay h4,.admin-modal-overlay h5,.admin-modal-overlay h6{letter-spacing:-.015em;font-weight:600}.admin-shell th,.admin-modal-overlay th{font-weight:500}.admin-shell{background:var(--admin-bg);min-height:100vh;color:var(--admin-text)}.admin-sidebar{z-index:80;color:#e2e8f0;background:#06152f;border-right:1px solid #ffffff1a;flex-direction:column;width:244px;max-width:90vw;transition:transform .2s ease-out,width .2s ease-out;display:flex;position:fixed;inset:0 auto 0 0}.admin-shell.is-collapsed .admin-sidebar{width:64px}.admin-brand{box-sizing:border-box;border-bottom:1px solid var(--admin-border);align-items:center;gap:10px;height:56px;min-height:56px;padding:0 16px;display:flex}.admin-brand-logo{object-fit:contain;object-position:center;width:32px;height:32px}.admin-brand div{gap:1px;min-width:0;display:grid}.admin-brand strong{color:var(--admin-text);letter-spacing:-.01em;font-size:.85rem;font-weight:600}.admin-brand span{color:var(--admin-faint);font-size:.7rem}.admin-navigation{flex:1;padding:12px 10px;overflow-y:auto}.admin-nav-group+.admin-nav-group{margin-top:18px}.admin-nav-group>p{color:var(--admin-faint);letter-spacing:.07em;text-transform:uppercase;margin:0 8px 4px;font-size:12px;font-weight:600}.admin-nav-link{color:#cbd5e1;border-radius:6px;align-items:center;gap:10px;height:32px;margin:2px 8px;padding:0 10px;font-size:13px;font-weight:500;transition:background-color .15s,color .15s;display:flex;position:relative}.admin-nav-link:hover{color:#fff;background:#ffffff1a}.admin-nav-link.is-active{color:#06152f;background:#fff;font-weight:500}.admin-sidebar-footer{border-top:1px solid var(--admin-border);gap:10px;padding:12px;display:grid}.admin-website-link{border-radius:var(--admin-radius-sm);color:var(--admin-text-secondary);transition:background var(--admin-dur-fast) var(--admin-ease), color var(--admin-dur-fast) var(--admin-ease);align-items:center;gap:8px;padding:6px 8px;font-size:.78rem;font-weight:500;display:flex}.admin-website-link:hover{background:var(--admin-surface-hover);color:var(--admin-brand)}.admin-account-summary{grid-template-columns:30px 1fr;align-items:center;gap:9px;min-width:0;padding:6px 8px;display:grid}.admin-avatar{border-radius:var(--admin-radius-sm);background:var(--admin-brand);width:30px;height:30px;color:var(--admin-brand-contrast);place-items:center;font-size:.75rem;font-weight:500;display:grid}.admin-account-summary div{min-width:0;display:grid}.admin-account-summary strong{text-overflow:ellipsis;white-space:nowrap;font-size:.78rem;font-weight:600;overflow:hidden}.admin-account-summary div span{color:var(--admin-faint);text-overflow:ellipsis;white-space:nowrap;font-size:.7rem;overflow:hidden}.admin-main{min-height:100vh;margin-left:244px;transition:margin-left .2s ease-out}.admin-shell.is-collapsed .admin-main{margin-left:64px}.admin-topbar{z-index:50;box-sizing:border-box;border-bottom:1px solid var(--admin-border);background:var(--admin-topbar-bg);-webkit-backdrop-filter:saturate(180%)blur(12px);backdrop-filter:saturate(180%)blur(12px);justify-content:space-between;align-items:center;gap:16px;height:56px;min-height:56px;padding:0 20px;display:flex;position:sticky;top:0}.admin-topbar-title{align-items:center;gap:12px;display:flex}.admin-topbar-page{align-items:center;gap:9px;display:flex}.admin-topbar-page-icon{color:var(--admin-brand);flex-shrink:0;justify-content:center;align-items:center;display:inline-flex}.admin-topbar-page-title{color:var(--admin-text);letter-spacing:-.01em;font-size:.95rem;font-weight:600;line-height:1.2}.admin-menu-button,.admin-sidebar-close{display:none!important}.admin-menu-button{border-radius:50%}.admin-icon-button{border:1px solid var(--admin-border);border-radius:var(--admin-radius-sm);background:var(--admin-surface);width:32px;height:32px;color:var(--admin-text-secondary);cursor:pointer;transition:background var(--admin-dur-fast) var(--admin-ease), border-color var(--admin-dur-fast) var(--admin-ease), color var(--admin-dur-fast) var(--admin-ease);place-items:center;display:inline-grid}.admin-icon-button:hover{border-color:var(--admin-border-strong);background:var(--admin-surface-hover);color:var(--admin-text)}.admin-icon-button:active{background:var(--admin-surface-active)}.admin-topbar-actions{align-items:center;gap:8px;display:flex}.admin-profile-container{align-items:center;display:flex;position:relative}.admin-profile-trigger{border:1px solid var(--admin-border);background:var(--admin-surface);height:36px;color:var(--admin-text);font:inherit;letter-spacing:-.01em;cursor:pointer;-webkit-user-select:none;user-select:none;transition:border-color var(--admin-dur-fast) var(--admin-ease), background var(--admin-dur-fast) var(--admin-ease), box-shadow var(--admin-dur-fast) var(--admin-ease);border-radius:999px;align-items:center;gap:8px;padding:0 12px 0 4px;font-size:.82rem;font-weight:500;display:inline-flex}.admin-profile-trigger:hover{border-color:var(--admin-border-strong);background:var(--admin-surface-hover)}.admin-profile-trigger.is-active{border-color:var(--admin-brand);background:var(--admin-surface-hover);box-shadow:0 0 0 3px #102f5e14}html[data-admin-theme=dark] .admin-profile-trigger.is-active{box-shadow:0 0 0 3px #5b9dff29}.admin-profile-trigger:focus-visible{outline:2px solid var(--admin-brand);outline-offset:1px}.admin-profile-trigger-avatar{color:#fff;letter-spacing:0;background:linear-gradient(135deg,#102f5e,#087f83);border-radius:50%;flex:0 0 28px;place-items:center;width:28px;height:28px;font-size:.75rem;font-weight:500;display:grid}html[data-admin-theme=dark] .admin-profile-trigger-avatar{background:linear-gradient(135deg,#2563eb,#0d9488)}.admin-profile-trigger-name{white-space:nowrap;text-overflow:ellipsis;max-width:140px;color:var(--admin-text);overflow:hidden}.admin-profile-trigger-chevron{color:var(--admin-muted);transition:transform var(--admin-dur) var(--admin-ease), color var(--admin-dur-fast) var(--admin-ease);flex-shrink:0}.admin-profile-trigger-chevron.is-open{color:var(--admin-brand);transform:rotate(180deg)}.admin-profile-dropdown{box-sizing:border-box;background:var(--admin-surface);border:1px solid var(--admin-border-strong);-webkit-backdrop-filter:saturate(180%)blur(16px);backdrop-filter:saturate(180%)blur(16px);z-index:100;transform-origin:100% 0;border-radius:18px;width:284px;padding:16px;animation:.16s cubic-bezier(.16,1,.3,1) forwards admin-profile-pop;position:absolute;top:calc(100% + 8px);right:0;box-shadow:0 6px 20px -4px #0f1f3614,0 2px 6px #0f1f3608}html[data-admin-theme=dark] .admin-profile-dropdown{box-shadow:0 10px 30px -4px #00000080,0 2px 6px #0000004d}@keyframes admin-profile-pop{0%{opacity:0;transform:scale(.96)translateY(-4px)}to{opacity:1;transform:scale(1)translateY(0)}}.admin-profile-header{align-items:center;gap:12px;display:flex}.admin-profile-header-avatar{color:#fff;width:40px;height:40px;box-shadow:0 0 0 2px var(--admin-surface), 0 0 0 3px var(--admin-border);background:linear-gradient(135deg,#102f5e,#087f83);border-radius:50%;flex:0 0 40px;place-items:center;font-size:.95rem;font-weight:500;display:grid}html[data-admin-theme=dark] .admin-profile-header-avatar{background:linear-gradient(135deg,#2563eb,#0d9488)}.admin-profile-header-meta{flex-direction:column;flex:1;min-width:0;display:flex}.admin-profile-name{color:var(--admin-text);letter-spacing:-.01em;white-space:nowrap;text-overflow:ellipsis;font-size:.88rem;font-weight:600;line-height:1.25;overflow:hidden}.admin-profile-email{color:var(--admin-muted);white-space:nowrap;text-overflow:ellipsis;margin-top:2px;font-size:.74rem;overflow:hidden}.admin-profile-badges{align-items:center;margin-top:6px;display:flex}.admin-profile-role-badge{background:var(--admin-brand-soft);color:var(--admin-brand);letter-spacing:.02em;white-space:nowrap;border:1px solid #102f5e1f;border-radius:999px;align-items:center;gap:4px;padding:2px 8px;font-size:.68rem;font-weight:500;display:inline-flex}html[data-admin-theme=dark] .admin-profile-role-badge{border-color:#5b9dff38}.admin-profile-divider{background:var(--admin-divider);border:0;height:1px;margin:12px 0}.admin-profile-section-row{justify-content:space-between;align-items:center;gap:10px;display:flex}.admin-profile-section-title{color:var(--admin-text-secondary);letter-spacing:-.01em;font-size:.76rem;font-weight:500}.admin-profile-segmented{background:var(--admin-surface-sunken);border:1px solid var(--admin-border);border-radius:999px;align-items:center;gap:2px;padding:2px;display:inline-flex}.admin-profile-segment-btn{color:var(--admin-muted);font:inherit;cursor:pointer;transition:background var(--admin-dur-fast) var(--admin-ease), color var(--admin-dur-fast) var(--admin-ease), border-color var(--admin-dur-fast) var(--admin-ease), box-shadow var(--admin-dur-fast) var(--admin-ease);background:0 0;border:1px solid #0000;border-radius:999px;align-items:center;gap:5px;padding:3px 9px;font-size:.72rem;font-weight:500;display:inline-flex}.admin-profile-segment-btn:hover:not(.is-active){color:var(--admin-text)}.admin-profile-segment-btn.is-active{background:var(--admin-surface);color:var(--admin-text);border-color:var(--admin-border-strong);box-shadow:0 1px 2px #0f1f360d}html[data-admin-theme=dark] .admin-profile-segment-btn.is-active{box-shadow:0 1px 3px #00000059}.admin-profile-links{flex-direction:column;display:flex}.admin-profile-link-item{color:var(--admin-text-secondary);transition:background var(--admin-dur-fast) var(--admin-ease), color var(--admin-dur-fast) var(--admin-ease);border-radius:999px;align-items:center;gap:9px;padding:7px 10px;font-size:.78rem;font-weight:500;text-decoration:none;display:flex}.admin-profile-link-item:hover{background:var(--admin-surface-hover);color:var(--admin-text)}.admin-profile-link-icon{color:var(--admin-brand);flex-shrink:0}.admin-profile-link-ext{color:var(--admin-faint);margin-left:auto}.admin-profile-footer{padding-top:2px}.admin-profile-logout-btn{box-sizing:border-box;border:1px solid var(--admin-border);width:100%;height:36px;color:var(--admin-text-secondary);font:inherit;cursor:pointer;transition:background var(--admin-dur-fast) var(--admin-ease), border-color var(--admin-dur-fast) var(--admin-ease), color var(--admin-dur-fast) var(--admin-ease);background:0 0;border-radius:999px;justify-content:center;align-items:center;gap:7px;padding:0 14px;font-size:.78rem;font-weight:500;display:flex}.admin-profile-logout-btn:hover:not(:disabled){background:var(--admin-danger-soft);border-color:var(--admin-danger-border);color:var(--admin-danger)}.admin-profile-logout-btn:disabled{opacity:.6;cursor:not-allowed}.admin-content{width:min(1280px,100%);margin:0 auto;padding:20px}.admin-page{flex-direction:column;gap:16px;min-width:0;display:flex}.admin-page>*{min-width:0}.admin-page-header{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.admin-page-header-copy{max-width:680px}.admin-eyebrow{color:var(--admin-accent);font-size:var(--font-size-micro);letter-spacing:.07em;text-transform:uppercase;margin-bottom:4px;font-weight:500;display:block}.admin-page-header h1{color:var(--admin-text);letter-spacing:-.02em;margin:0;font-size:1.25rem;font-weight:500;line-height:1.25}.admin-page-header p{color:var(--admin-muted);margin:4px 0 0;font-size:.82rem;line-height:1.5}.admin-button{border:1px solid var(--admin-brand);border-radius:var(--admin-radius-sm);background:var(--admin-brand);min-height:34px;color:var(--admin-brand-contrast);font:inherit;white-space:nowrap;cursor:pointer;transition:background var(--admin-dur-fast) var(--admin-ease), border-color var(--admin-dur-fast) var(--admin-ease), box-shadow var(--admin-dur-fast) var(--admin-ease);justify-content:center;align-items:center;gap:7px;padding:0 13px;font-size:.8rem;font-weight:500;display:inline-flex}.admin-button:hover{border-color:var(--admin-brand-strong);background:var(--admin-brand-strong)}.admin-button:disabled{cursor:not-allowed;opacity:.55}.admin-button .admin-spinner{border-width:2px;border-color:color-mix(in srgb, currentColor 28%, 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var(--admin-border);border-radius:var(--admin-radius);background:var(--admin-surface);box-shadow:var(--admin-shadow-sm)}.admin-card-header{border-bottom:1px solid var(--admin-divider);justify-content:space-between;align-items:center;gap:14px;padding:12px 16px;display:flex}.admin-card-header h2{color:var(--admin-text);letter-spacing:-.01em;margin:0;font-size:.88rem;font-weight:600}.admin-card-header p{color:var(--admin-muted);margin:2px 0 0;font-size:.76rem;line-height:1.45}.admin-card-body{padding:16px}.admin-dash{flex-direction:column;gap:14px;width:100%;display:flex}.admin-dash-header{background:var(--admin-surface);border:1px solid var(--admin-border);border-radius:var(--admin-radius-md);box-shadow:var(--admin-shadow-xs);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:12px 18px;display:flex}.admin-dash-header-left{align-items:center;gap:12px;display:flex}.admin-dash-header-icon{background:var(--admin-brand-soft);width:34px;height:34px;color:var(--admin-brand);border:1px solid #102f5e1a;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:flex}.admin-dash-header-text h1{color:var(--admin-text);letter-spacing:-.01em;margin:0;font-size:1.05rem;font-weight:500;line-height:1.25}.admin-dash-header-text p{color:var(--admin-muted);margin:2px 0 0;font-size:.74rem}.admin-dash-header-right{align-items:center;gap:10px;display:flex}.admin-dash-live-badge{background:var(--admin-success-soft);color:var(--admin-success);border:1px solid var(--admin-success-border);border-radius:999px;align-items:center;gap:6px;padding:3px 10px;font-size:.7rem;font-weight:500;display:inline-flex}.admin-dash-live-dot{background:currentColor;border-radius:50%;width:6px;height:6px;box-shadow:0 0 5px}.admin-dash-timestamp{color:var(--admin-muted);white-space:nowrap;font-size:.72rem}.admin-dash-refresh-btn{border:1px solid var(--admin-border);background:var(--admin-surface);width:32px;height:32px;color:var(--admin-text-secondary);cursor:pointer;transition:background var(--admin-dur-fast) var(--admin-ease), border-color var(--admin-dur-fast) var(--admin-ease), color var(--admin-dur-fast) var(--admin-ease);border-radius:50%;justify-content:center;align-items:center;display:flex}.admin-dash-refresh-btn:hover:not(:disabled){background:var(--admin-surface-hover);border-color:var(--admin-border-strong);color:var(--admin-text)}.admin-dash-refresh-btn:disabled{opacity:.5;cursor:not-allowed}.admin-dash-kpis{grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;display:grid}.admin-dash-kpi{background:var(--admin-surface);border:1px solid var(--admin-border);border-radius:var(--admin-radius-md);color:inherit;transition:transform var(--admin-dur-fast) var(--admin-ease), border-color var(--admin-dur-fast) var(--admin-ease), box-shadow var(--admin-dur-fast) var(--admin-ease);box-shadow:var(--admin-shadow-xs);flex-direction:column;justify-content:space-between;min-width:0;padding:13px 15px;text-decoration:none;display:flex}.admin-dash-kpi:hover{border-color:var(--admin-border-strong);box-shadow:var(--admin-shadow-sm);transform:translateY(-1px)}.admin-dash-kpi-top{justify-content:space-between;align-items:center;gap:8px;margin-bottom:8px;display:flex}.admin-dash-kpi-label{text-transform:uppercase;letter-spacing:.08em;color:var(--admin-muted);text-overflow:ellipsis;white-space:nowrap;font-size:.68rem;font-weight:600;overflow:hidden}.admin-dash-kpi-icon{border-radius:var(--admin-radius-sm);background:var(--admin-surface-sunken);width:28px;height:28px;color:var(--admin-text-secondary);flex-shrink:0;justify-content:center;align-items:center;display:flex}.admin-dash-kpi.is-students .admin-dash-kpi-icon{color:#4338ca;background:#eef2ff}.admin-dash-kpi.is-courses 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