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span{font-size:var(--text-sm);color:var(--text-secondary)}.empty-state{padding:var(--space-8);text-align:center;color:var(--text-tertiary)}.detail-sidebar{display:flex;flex-direction:column;gap:var(--space-6)}.detail-loading,.detail-error{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;gap:var(--space-4);text-align:center}.status-control{display:flex;align-items:center;gap:var(--space-2)}.toggle-status-btn{background:transparent;border:none;cursor:pointer;padding:4px;display:flex;align-items:center;color:var(--text-secondary);transition:color var(--transition-fast)}.toggle-status-btn:hover{color:var(--primary-600)}.toggle-status-btn .active{color:var(--success)}.toggle-status-btn .inactive{color:var(--text-tertiary)}.activity-list{display:flex;flex-direction:column;gap:var(--space-3)}.activity-item{display:flex;align-items:flex-start;gap:var(--space-3);padding:var(--space-4);border-radius:var(--radius-lg);background:var(--surface-secondary);border:1px solid rgba(148,163,184,.15)}.activity-item svg{color:var(--primary-600);flex-shrink:0;margin-top:2px}.activity-item strong{display:block;margin-bottom:4px;color:var(--text-primary)}.activity-item span{font-size:var(--text-sm);color:var(--text-secondary)}.loading-state{padding:var(--space-8);text-align:center;color:var(--text-tertiary)}.create-user-page{padding:2rem;max-width:1200px;margin:0 auto}.create-user-form{background:var(--color-surface);border-radius:16px;padding:2rem;margin-top:2rem}.form-section{margin-bottom:2.5rem}.form-section h2{font-size:1.25rem;font-weight:600;margin-bottom:1.5rem;color:var(--color-text-primary);border-bottom:1px solid 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var(--transition-fast);text-decoration:none;-webkit-user-select:none;user-select:none}.image-upload-button:hover{background:var(--primary-600);transform:translateY(-1px);box-shadow:0 4px 12px #3b82f64d}.image-upload-button:active{transform:translateY(0);box-shadow:0 2px 6px #3b82f633}.cancel-image-btn{display:inline-flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);background:var(--surface-secondary);color:var(--text-secondary);border:1px solid rgba(148,163,184,.2);border-radius:var(--radius-lg);font-size:var(--text-sm);font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.cancel-image-btn:hover{background:#ef44441a;border-color:#ef44444d;color:var(--error)}.remove-image-btn{position:absolute;top:8px;right:8px;background:#ef4444e6;color:#fff;border:none;border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s;box-shadow:0 2px 8px #0003}.remove-image-btn:hover{background:#ef4444;transform:scale(1.1);box-shadow:0 4px 12px #ef444466}.version-history{margin-bottom:var(--space-4)}.version-list{display:flex;flex-direction:column;gap:var(--space-3);margin-top:var(--space-4)}.version-item{padding:var(--space-4);border-radius:var(--radius-lg);background:var(--surface-secondary);border:1px solid rgba(148,163,184,.2)}.version-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-2)}.version-date{font-size:var(--text-sm);color:var(--text-tertiary)}.version-description{margin:0;font-size:var(--text-sm);color:var(--text-secondary)}.detail-content{display:grid;grid-template-columns:1fr 280px;gap:var(--space-6);margin-top:var(--space-6)}.detail-card{background:var(--surface-primary);border-radius:var(--radius-xl);padding:var(--space-6);border:1px solid rgba(148,163,184,.15);box-shadow:0 4px 12px #0f172a14}.detail-card h3{margin:0 0 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1024px){.detail-content,.analytics-grid{grid-template-columns:1fr}.detail-sidebar{order:-1}}.create-course-page{display:flex;flex-direction:column;gap:var(--space-6)}.create-form{max-width:1200px;display:flex;flex-direction:column;gap:var(--space-8)}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.image-upload-section{margin-top:1rem}.image-upload-area{border:2px dashed rgba(148,163,184,.3);border-radius:var(--radius-lg);padding:2rem;text-align:center;cursor:pointer;transition:all .2s}.image-upload-area:hover{border-color:var(--primary-500);background:#3b82f60d}.image-upload-label{display:flex;flex-direction:column;align-items:center;gap:var(--space-2);cursor:pointer;color:var(--text-secondary)}.image-upload-label svg{color:var(--primary-500)}.image-upload-label small{font-size:var(--text-xs);color:var(--text-tertiary)}.image-preview-container{position:relative;display:inline-block;margin-top:1rem}.image-preview{max-width:300px;max-height:200px;border-radius:8px;object-fit:cover}.remove-image-btn{position:absolute;top:8px;right:8px;background:#ef4444e6;color:#fff;border:none;border-radius:50%;width:32px;height:32px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.remove-image-btn:hover{background:#ef4444;transform:scale(1.1)}.pricing-tiers-section{margin-top:1rem}.pricing-tier-item{padding:var(--space-4);border:1px solid rgba(148,163,184,.2);border-radius:var(--radius-lg);margin-bottom:var(--space-4);display:grid;grid-template-columns:1fr 1fr 2fr auto;gap:var(--space-4);align-items:end}.features-section{margin-top:1rem}.features-list{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}.feature-item{display:flex;align-items:center;gap:var(--space-2);padding:var(--space-2) 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var(--ease-out)}.resources-list{display:flex;flex-direction:column;gap:var(--space-3)}.resource-item{display:flex;align-items:flex-start;gap:var(--space-4);padding:var(--space-4);border-radius:var(--radius-lg);background:var(--surface-secondary);border:1px solid rgba(148,163,184,.15);transition:all var(--transition-fast)}.resource-item:hover{border-color:var(--primary-500);box-shadow:0 2px 8px #3b82f61a}.resource-icon{width:48px;height:48px;border-radius:var(--radius-lg);display:grid;place-items:center;background:linear-gradient(135deg,var(--primary-500),var(--primary-600));color:#fff;flex-shrink:0}.resource-content{flex:1}.resource-content strong{display:block;margin-bottom:var(--space-1);color:var(--text-primary)}.resource-content p{margin:var(--space-1) 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768px){.form-row{grid-template-columns:1fr}}.lectures-page{padding:var(--space-6);max-width:100%;overflow-x:hidden}.page-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--space-6);gap:var(--space-4)}.header-actions-group{display:flex;align-items:center;gap:var(--space-3)}.view-toggle{display:flex;gap:var(--space-2);background:var(--color-surface-secondary);padding:var(--space-1);border-radius:var(--radius-md)}.page-header h1{display:flex;align-items:center;gap:var(--space-3);font-size:1.75rem;font-weight:600;color:var(--color-text-primary);margin:0 0 var(--space-2) 0}.page-filters{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr 1fr auto;gap:var(--space-3);margin-bottom:var(--space-6);align-items:end}.search-bar{position:relative;display:flex;align-items:center}.search-bar svg{position:absolute;left:var(--space-3);color:var(--color-text-tertiary);pointer-events:none}.search-bar input{width:100%;padding:var(--space-3) var(--space-3) 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1024px){.page-filters{grid-template-columns:1fr;gap:var(--space-2)}.page-header{flex-direction:column;align-items:stretch}}.lecture-detail-page{padding:var(--space-6);max-width:100%;overflow-x:hidden}.detail-content,.detail-main{display:flex;flex-direction:column;gap:var(--space-6)}.card-section{margin-bottom:var(--space-6)}.card-section:last-child{margin-bottom:0}.card-section h3{margin:0 0 var(--space-3) 0;font-size:1rem;font-weight:600;color:var(--color-text-primary)}.card-section p{margin:0;color:var(--color-text-secondary);line-height:1.6}.info-item label{display:block;font-size:.875rem;font-weight:500;color:var(--color-text-primary);margin-bottom:var(--space-1)}.info-item p{margin:0;color:var(--color-text-secondary)}.breadcrumb-nav{display:flex;align-items:center;gap:var(--space-2);flex-wrap:wrap}.breadcrumb-link{display:flex;align-items:center;gap:var(--space-2);color:var(--color-primary);text-decoration:none;font-weight:500;transition:color 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p{margin:0;color:var(--color-text-secondary);font-size:.875rem}.status-present{color:var(--color-success);font-weight:500}.status-absent{color:var(--color-error);font-weight:500}.status-late{color:var(--color-warning);font-weight:500}.status-excused{color:var(--color-text-tertiary);font-weight:500}.fermion-embed-container{margin-top:var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;background:#000;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;position:relative;width:100%;aspect-ratio:16 / 9;min-height:400px}.fermion-embed-container iframe{width:100%;height:100%;border:none;display:block;position:absolute;top:0;left:0}.fermion-info-box{padding:var(--space-2);background:#3b82f61a;border:1px solid rgba(59,130,246,.3);border-radius:var(--radius-md);font-size:.75rem;color:var(--color-text-secondary)}.fermion-info-box strong{color:var(--color-text-primary)}@media (max-width: 768px){.detail-header{flex-direction:column;align-items:stretch}.header-actions{flex-direction:column}.info-grid{grid-template-columns:1fr}.fermion-embed-container{min-height:300px}}.create-lecture-page{padding:var(--space-6);max-width:100%;overflow-x:hidden}.lecture-form{display:flex;flex-direction:column;gap:var(--space-6)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4)}.fermion-section{margin:var(--space-5) 0}.fermion-toggle-group{display:flex;flex-direction:column;gap:var(--space-3)}.fermion-toggle-label{display:flex;align-items:flex-start;gap:var(--space-3);cursor:pointer;padding:var(--space-4);background:var(--color-surface-secondary);border:2px solid var(--color-border);border-radius:var(--radius-md);transition:all .2s ease}.fermion-toggle-label:hover{border-color:var(--color-primary);background:var(--color-surface-primary)}.fermion-toggle-label:has(input:checked){border-color:var(--color-primary);background:rgba(var(--color-primary-rgb, 74, 144, 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strong{display:block;margin-bottom:var(--space-2);color:var(--color-text-primary);font-size:.875rem}.fermion-info-box ul{margin:0;padding-left:var(--space-5);color:var(--color-text-secondary);font-size:.875rem}.fermion-info-box li{margin:var(--space-1) 0;line-height:1.5}.info-card.module-open{border-color:#22c55e4d;background:#22c55e08}.info-card.module-closed{border-color:#fbbf244d;background:#fbbf2408}@media (max-width: 768px){.form-row{grid-template-columns:1fr}.form-actions{flex-direction:column-reverse}.fermion-toggle-label{padding:var(--space-3)}.fermion-info-box{padding:var(--space-3);flex-direction:column}.fermion-info-box svg{margin-top:0}}.enrollments-page{display:flex;flex-direction:column;gap:var(--space-6)}.enrollment-email{display:block;font-size:var(--text-xs);color:var(--text-tertiary);margin-top:4px}.bulk-actions-form{display:flex;flex-direction:column;gap:var(--space-4)}.bulk-actions-form p{margin:0;color:var(--color-text-secondary)}.enrollment-detail-page{display:flex;flex-direction:column;gap:var(--space-6);padding:var(--space-6);max-width:100%;overflow-x:hidden}.detail-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-6);gap:var(--space-4)}.card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--space-6);gap:var(--space-4)}.card-header h1{margin:0;font-size:1.75rem;font-weight:600;color:var(--color-text-primary)}.info-link{color:var(--color-primary);text-decoration:none;font-weight:500;transition:color .2s}.info-link:hover{color:var(--color-primary-dark);text-decoration:underline}.payments-list{display:flex;flex-direction:column;gap:var(--space-3)}.payment-item{display:flex;justify-content:space-between;align-items:center;padding:var(--space-4);background:var(--color-surface-secondary);border-radius:var(--radius-md);border:1px solid var(--color-border)}.payment-method{display:block;font-size:.875rem;color:var(--color-text-secondary);margin-top:var(--space-1)}.payment-date{display:block;font-size:.75rem;color:var(--color-text-tertiary);margin-top:var(--space-1)}.history-list{display:flex;flex-direction:column;gap:var(--space-4);position:relative;padding-left:var(--space-4)}.history-item{display:flex;gap:var(--space-4);position:relative}.history-marker{width:12px;height:12px;border-radius:50%;background:var(--color-primary);flex-shrink:0;margin-top:4px;position:absolute;left:-8px}.history-content{flex:1}.history-content strong{display:block;color:var(--color-text-primary);margin-bottom:var(--space-1)}.history-content p{margin:0;color:var(--color-text-secondary);font-size:.875rem}.status-actions{display:flex;align-items:center;gap:var(--space-2)}.status-buttons{display:flex;gap:var(--space-1)}.create-enrollment-page{padding:var(--space-6);max-width:100%;overflow-x:hidden}.create-loading{padding:var(--space-12);text-align:center;color:var(--color-text-secondary)}.page-header{margin-bottom:var(--space-6)}.page-header h1{display:flex;align-items:center;gap:var(--space-3);font-size:1.75rem;font-weight:600;color:var(--color-text-primary);margin:var(--space-4) 0 var(--space-2) 0}.page-header p{color:var(--color-text-secondary);margin:0}.form-container{max-width:900px}.enrollment-form{display:flex;flex-direction:column;gap:var(--space-6)}.form-section{background:var(--color-surface-primary);border-radius:var(--radius-lg);padding:var(--space-6);border:1px solid var(--color-border)}.form-section h2{margin:0 0 var(--space-5) 0;font-size:1.25rem;font-weight:600;color:var(--color-text-primary);padding-bottom:var(--space-3);border-bottom:1px solid var(--color-border)}.info-card{background:var(--color-surface-secondary);border-radius:var(--radius-md);padding:var(--space-4);margin-top:var(--space-4);border:1px solid var(--color-border)}.info-card h3{display:flex;align-items:center;gap:var(--space-2);margin:0 0 var(--space-3) 0;font-size:1rem;font-weight:600;color:var(--color-text-primary)}.info-card p{margin:var(--space-2) 0;color:var(--color-text-secondary);font-size:.875rem}.info-card a{color:var(--color-primary);text-decoration:none;font-weight:500}.info-card a:hover{text-decoration:underline}.form-actions{display:flex;justify-content:flex-end;gap:var(--space-3);padding-top:var(--space-4);border-top:1px solid var(--color-border)}@media (max-width: 768px){.form-actions{flex-direction:column-reverse}}.payments-page{display:flex;flex-direction:column;gap:var(--space-6)}.revenue-card{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4) var(--space-5);border-radius:var(--radius-xl);background:linear-gradient(135deg,#10b98126,#10b98114);border:1px solid rgba(16,185,129,.3);color:var(--success)}.revenue-card div{display:flex;flex-direction:column}.revenue-card span{font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.05em}.revenue-card strong{font-size:var(--text-xl);color:var(--success)}.payment-email{display:block;font-size:var(--text-xs);color:var(--text-tertiary);margin-top:4px}.transaction-id{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--text-secondary)}.payment-detail-page{display:flex;flex-direction:column;gap:var(--space-6)}.payment-icon{width:80px;height:80px;border-radius:var(--radius-xl);display:grid;place-items:center;background:linear-gradient(135deg,var(--success),#059669);color:#fff;box-shadow:0 12px 24px #10b98159}.payment-amount{text-align:center;padding:var(--space-8);margin:var(--space-6) 0;border-radius:var(--radius-xl);background:linear-gradient(135deg,#10b9811a,#10b9810d);border:1px solid rgba(16,185,129,.2)}.amount-label{display:block;font-size:var(--text-sm);text-transform:uppercase;letter-spacing:.05em;color:var(--text-tertiary);margin-bottom:var(--space-2)}.amount-value{display:block;font-size:var(--text-4xl);color:var(--success);font-weight:700}.transaction-id{font-family:var(--font-mono);font-size:var(--text-sm);color:var(--text-secondary)}.enrollment-link{margin-top:var(--space-6);padding-top:var(--space-6);border-top:1px solid rgba(148,163,184,.2)}.enrollment-link a{color:var(--primary-600);text-decoration:none;font-weight:500;transition:color var(--transition-fast) var(--ease-out)}.enrollment-link a:hover{color:var(--primary-700);text-decoration:underline}.enquiries-page{display:flex;flex-direction:column;gap:var(--space-6)}.enquiry-email{display:block;font-size:var(--text-xs);color:var(--text-tertiary);margin-top:4px}.enquiry-phone{display:block;font-size:var(--text-xs);color:var(--text-tertiary)}.enquiry-message{max-width:300px;font-size:var(--text-sm);color:var(--text-secondary);line-height:1.5}.status-select{padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);border:2px solid var(--border-primary);background:var(--surface-primary);color:var(--text-primary);font-size:var(--text-sm);cursor:pointer}.priority-urgent{background:#ef44441a;color:var(--error)}.priority-high{background:#f59e0b1a;color:var(--warning)}.priority-medium{background:#3b82f61a;color:var(--primary-600)}.priority-low{background:#94a3b81a;color:var(--text-tertiary)}.enquiry-detail-page{display:flex;flex-direction:column;gap:var(--space-6);padding:var(--space-6);max-width:100%;overflow-x:hidden}.detail-loading,.detail-error{padding:var(--space-12);text-align:center;color:var(--color-text-secondary)}.detail-error{color:var(--color-error)}.detail-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-6);gap:var(--space-4);flex-wrap:wrap}.back-link{display:inline-flex;align-items:center;gap:var(--space-2);color:var(--color-text-secondary);text-decoration:none;transition:color .2s}.header-actions{display:flex;gap:var(--space-3);flex-wrap:wrap}.detail-tabs{display:flex;gap:var(--space-2);border-bottom:2px solid var(--color-border);margin-bottom:var(--space-6)}.detail-tabs button{padding:var(--space-3) var(--space-4);background:transparent;border:none;border-bottom:2px solid transparent;color:var(--color-text-secondary);cursor:pointer;display:flex;align-items:center;gap:var(--space-2);font-size:.875rem;font-weight:500;transition:all .2s;margin-bottom:-2px}.detail-tabs button:hover{color:var(--color-primary)}.detail-content{display:grid;grid-template-columns:1fr 280px;gap:var(--space-6)}.detail-main,.detail-sidebar{display:flex;flex-direction:column;gap:var(--space-6)}.detail-card{background:var(--color-surface-primary);border-radius:var(--radius-lg);padding:var(--space-6);border:1px solid var(--color-border)}.card-header{display:flex;align-items:flex-start;gap:var(--space-4);margin-bottom:var(--space-6)}.enquiry-icon{width:80px;height:80px;border-radius:var(--radius-xl);display:grid;place-items:center;background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));color:#fff;box-shadow:0 12px 24px #3b82f659;flex-shrink:0}.card-header>div:last-child{flex:1}.card-header h1{margin:0 0 var(--space-2) 0;font-size:1.75rem;font-weight:600;color:var(--color-text-primary)}.header-badges{display:flex;gap:var(--space-2);align-items:center;flex-wrap:wrap}.priority-badge{padding:var(--space-1) var(--space-3);border-radius:var(--radius-md);font-size:.75rem;font-weight:600;text-transform:uppercase}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-4)}.section-header h2{margin:0;font-size:1.25rem;font-weight:600;color:var(--color-text-primary)}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-4)}.info-item{display:flex;align-items:flex-start;gap:var(--space-3)}.info-item svg{color:var(--color-primary);flex-shrink:0;margin-top:2px}.info-label{display:block;font-size:.875rem;font-weight:500;color:var(--color-text-secondary);margin-bottom:var(--space-1)}.message-section,.course-section{margin-top:var(--space-6);padding-top:var(--space-6);border-top:1px solid var(--color-border)}.message-section h2,.course-section h2{margin:0 0 var(--space-4) 0;font-size:1.25rem;font-weight:600;color:var(--color-text-primary)}.message-text{line-height:1.7;color:var(--color-text-primary);padding:var(--space-4);border-radius:var(--radius-md);background:var(--color-surface-secondary);white-space:pre-wrap;margin:0}.course-link{display:inline-block;padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);background:var(--color-primary-light);color:var(--color-primary);text-decoration:none;font-weight:500;transition:all .2s}.course-link:hover{background:var(--color-primary);color:#fff;transform:translateY(-2px)}.notes-content{padding:var(--space-4);background:var(--color-surface-secondary);border-radius:var(--radius-md);border:1px solid var(--color-border)}.notes-content p{margin:0 0 var(--space-2) 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p{margin:0;color:var(--color-text-secondary);font-size:.875rem;line-height:1.6}.analytics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-4)}.analytics-item{padding:var(--space-4);background:var(--color-surface-secondary);border-radius:var(--radius-md);border:1px solid var(--color-border)}.analytics-label{display:block;font-size:.875rem;color:var(--color-text-secondary);margin-bottom:var(--space-2)}.analytics-value{display:block;font-size:1.5rem;font-weight:600;color:var(--color-text-primary)}.action-list{display:flex;flex-direction:column;gap:var(--space-2)}.action-list 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