.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.auth-card{background:#fff;padding:40px;border-radius:8px;box-shadow:0 10px 25px #0003;width:100%;max-width:400px}.auth-card h1{margin-bottom:30px;text-align:center;color:#333;font-size:1.8rem}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:500;color:#555}.form-group input{width:100%;padding:12px;border:1px solid #ddd;border-radius:4px;font-size:.95rem}.form-group input:focus{border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-group input:disabled{background-color:#f5f5f5;cursor:not-allowed}.auth-card button[type=submit]{width:100%;padding:12px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-weight:600;border:none;border-radius:4px;cursor:pointer;font-size:1rem;margin-top:10px}.auth-card button[type=submit]:hover:not(:disabled){box-shadow:0 4px 15px #667eea66;transform:translateY(-2px)}.auth-card button[type=submit]:disabled{opacity:.7;cursor:not-allowed}.auth-link{text-align:center;margin-top:20px;color:#666}.auth-link a{color:#667eea;text-decoration:none;font-weight:600}.auth-link a:hover{text-decoration:underline}.error-message{margin-bottom:20px}.dashboard-container{min-height:100vh;background-color:#f5f5f5}.dashboard-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:20px;box-shadow:0 2px 8px #0000001a}.dashboard-header .header-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.dashboard-header h1{font-size:1.8rem;margin:0}.role-badge{background:#fff3;padding:6px 12px;border-radius:20px;font-size:.85rem;text-transform:uppercase;font-weight:600}.admin-btn,.logout-btn{background:#fff;color:#667eea;padding:8px 16px;border-radius:4px;font-weight:600;border:none;cursor:pointer;font-size:.9rem}.admin-btn:hover,.logout-btn:hover{background:#f0f0f0}.dashboard-content{max-width:1200px;margin:0 auto;padding:40px 20px}.courses-section h2{font-size:1.5rem;margin-bottom:25px;color:#333}.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.course-card{background:#fff;border-radius:8px;padding:0;overflow:hidden;box-shadow:0 2px 8px #0000001a;transition:all .3s ease;display:flex;flex-direction:column}.course-card:hover{transform:translateY(-4px);box-shadow:0 4px 16px #00000026}.course-cover{height:140px;background-size:cover;background-position:center;background-color:#e0e7ff;display:flex;align-items:center;justify-content:center}.course-cover .no-cover{color:#9aa6e0;font-weight:600}.course-card-body{padding:20px;display:flex;flex-direction:column;flex:1}.course-summary{font-size:.88rem;color:#666;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.course-card h3{font-size:1.2rem;margin-bottom:12px;color:#333}.course-info{margin-bottom:15px}.progress-bar{width:100%;height:8px;background:#eee;border-radius:4px;overflow:hidden;margin-bottom:8px}.progress-fill{height:100%;background:linear-gradient(90deg,#667eea,#764ba2);transition:width .3s ease}.progress-text{font-size:.85rem;color:#666;margin:0}.course-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;padding-top:12px;border-top:1px solid #eee}.status-badge{background:#e0e7ff;color:#667eea;padding:4px 12px;border-radius:16px;font-size:.8rem;font-weight:600;text-transform:capitalize}.last-accessed{font-size:.8rem;color:#999}.continue-btn{width:100%;padding:10px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:4px;font-weight:600;cursor:pointer}.continue-btn:hover{box-shadow:0 2px 8px #667eea66}.admin-container{min-height:100vh;background-color:#f5f5f5}.admin-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:20px;box-shadow:0 2px 8px #0000001a}.admin-header .header-content{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.admin-header h1{font-size:1.8rem;margin:0}.user-info{display:flex;gap:15px;align-items:center}.user-name{font-weight:500}.back-btn,.logout-btn{background:#fff;color:#667eea;padding:8px 16px;border-radius:4px;font-weight:600;border:none;cursor:pointer;font-size:.9rem}.back-btn:hover,.logout-btn:hover{background:#f0f0f0}.admin-content{max-width:1200px;margin:0 auto;padding:40px 20px}.users-section h2{font-size:1.5rem;margin-bottom:25px;color:#333}.users-table-wrapper{background:#fff;border-radius:8px;box-shadow:0 2px 8px #0000001a;overflow:hidden}.users-table{width:100%;border-collapse:collapse}.users-table thead{background:#f8f9fa;border-bottom:2px solid #ddd}.users-table th{padding:15px;text-align:left;font-weight:600;color:#333}.users-table td{padding:15px;border-bottom:1px solid #eee}.users-table tbody tr:hover{background:#f8f9fa}.role-badge{padding:6px 12px;border-radius:4px;font-size:.85rem;font-weight:600;text-transform:uppercase}.role-badge.admin{background:#fff3cd;color:#856404}.role-badge.user{background:#d4edda;color:#155724}.action-btn{padding:6px 12px;margin-right:8px;border:none;border-radius:4px;font-size:.85rem;font-weight:600;cursor:pointer}.action-btn.edit{background:#e0e7ff;color:#667eea}.action-btn.edit:hover{background:#c7d2ff}.action-btn.delete{background:#ffebee;color:#c62828}.action-btn.delete:hover{background:#ffcdd2}.admin-tabs{max-width:1200px;margin:0 auto;padding:20px 20px 0;display:flex;gap:8px;border-bottom:1px solid #e0e0e0}.tab-btn{background:transparent;border:none;padding:12px 24px;font-size:1rem;font-weight:600;color:#777;cursor:pointer;border-bottom:3px solid transparent;border-radius:0}.tab-btn:hover{color:#667eea}.tab-btn.active{color:#667eea;border-bottom-color:#667eea}.create-course-card{background:#fff;border-radius:8px;padding:24px;box-shadow:0 2px 8px #00000014;margin-bottom:30px}.create-course-card h3{margin-bottom:6px;color:#333}.create-course-card .hint{color:#777;font-size:.9rem;margin-bottom:16px}.create-course-form{display:flex;gap:12px}.create-course-form input{flex:1;padding:12px;border:1px solid #ddd;border-radius:4px;font-size:.95rem}.create-course-form button{padding:12px 24px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:4px;font-weight:600;cursor:pointer;white-space:nowrap}.create-course-form button:disabled{opacity:.7;cursor:not-allowed}.course-admin-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}.course-admin-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 8px #0000001a;display:flex;flex-direction:column}.course-admin-cover{height:140px;background-size:cover;background-position:center;background-color:#e0e7ff;display:flex;align-items:center;justify-content:center}.course-admin-cover .no-cover{color:#9aa6e0;font-weight:600}.course-admin-body{padding:16px;display:flex;flex-direction:column;flex:1}.course-admin-body h3{font-size:1.1rem;margin-bottom:8px;color:#333}.course-admin-summary{font-size:.88rem;color:#666;margin-bottom:12px;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.course-admin-meta{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.modules-badge{background:#e0e7ff;color:#667eea;padding:4px 10px;border-radius:12px;font-size:.78rem;font-weight:600}.slug-badge{background:#f0f0f0;color:#777;padding:4px 10px;border-radius:12px;font-size:.78rem;font-family:monospace}.course-admin-actions{display:flex;gap:8px}.action-btn.refresh{background:#e0f2f1;color:#00897b}.action-btn.refresh:hover{background:#b2dfdb}.action-btn.assign{background:#ede7f6;color:#5e35b1}.action-btn.assign:hover{background:#d1c4e9}.assign-panel{margin-top:14px;padding-top:14px;border-top:1px solid #eee}.assign-row{display:flex;gap:8px;margin-bottom:12px}.assign-row select{flex:1;padding:8px;border:1px solid #ddd;border-radius:4px;font-size:.85rem}.assign-row button{background:#5e35b1;color:#fff;border:none;padding:8px 16px;border-radius:4px;font-weight:600;cursor:pointer}.assign-row button:disabled{opacity:.5;cursor:not-allowed}.assigned-list{display:flex;flex-direction:column;gap:6px}.assigned-item{display:flex;justify-content:space-between;align-items:center;background:#f8f9fa;padding:8px 12px;border-radius:4px;font-size:.85rem}.assigned-item .muted,.assign-panel .muted{color:#999}.remove-x{background:transparent;color:#c62828;border:none;cursor:pointer;font-size:.9rem;padding:2px 6px}.loading.small{min-height:60px;font-size:.9rem}.no-courses{background:#fff;padding:40px;border-radius:8px;text-align:center;color:#999}.header-title{display:flex;flex-direction:column;gap:2px}.header-eyebrow{font-size:.7rem;letter-spacing:.12em;font-weight:700;opacity:.8}.admin-panel{display:flex;flex-direction:column;gap:18px}.panel-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.toolbar-filters{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.search-box{position:relative;display:flex;align-items:center}.search-box .search-icon{position:absolute;left:12px;color:#9aa0a6;font-size:1.1rem;pointer-events:none}.search-box input{padding:10px 14px 10px 34px;border:1px solid #dadce0;border-radius:8px;font-size:.9rem;min-width:280px;background:#fff}.toolbar-filters select{padding:10px 14px;border:1px solid #dadce0;border-radius:8px;font-size:.9rem;background:#fff;color:#333;cursor:pointer}.search-box input:focus,.toolbar-filters select:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea26}.add-btn{background:#2563eb;color:#fff;border:none;padding:10px 18px;border-radius:8px;font-weight:600;font-size:.9rem;cursor:pointer;white-space:nowrap}.add-btn:hover{background:#1d4ed8}.data-table-wrapper{background:#fff;border-radius:10px;border:1px solid #e8eaed;overflow:hidden;box-shadow:0 1px 3px #0000000f}.data-table{width:100%;border-collapse:collapse}.data-table thead{background:#f8f9fb}.data-table th{text-align:left;padding:14px 18px;font-size:.72rem;letter-spacing:.06em;font-weight:700;color:#6b7280;border-bottom:1px solid #e8eaed}.data-table td{padding:14px 18px;border-bottom:1px solid #f0f1f3;font-size:.9rem;color:#333;vertical-align:middle}.data-table tbody tr:last-child td{border-bottom:none}.data-table tbody tr:hover{background:#fafbfc}.cell-strong{font-weight:600;color:#1f2937}.cell-sub{font-size:.78rem;color:#9aa0a6;margin-top:2px}.cell-mono{font-family:SF Mono,Roboto Mono,Menlo,monospace;font-size:.82rem;color:#5f6368}.cell-desc{max-width:320px;color:#5f6368}.muted{color:#9aa0a6}.actions-col{text-align:right;white-space:nowrap}.row-btn{background:#fff;border:1px solid #dadce0;color:#3c4043;padding:6px 14px;border-radius:6px;font-size:.82rem;font-weight:600;cursor:pointer;margin-left:8px}.row-btn:hover{background:#f1f3f4}.row-btn.danger{color:#d93025;border-color:#f3c0bb}.row-btn.danger:hover{background:#fce8e6}.badge{display:inline-block;padding:4px 10px;border-radius:999px;font-size:.75rem;font-weight:600}.badge.role-admin{background:#fff3cd;color:#856404}.badge.role-user{background:#e6f4ea;color:#137333}.badge-pub{background:#e8f0fe;color:#1967d2}.pub-name{display:flex;align-items:center;gap:10px}.pub-logo{width:26px;height:26px;border-radius:6px;object-fit:cover;border:1px solid #e8eaed}.progress-cell{display:flex;align-items:center;gap:10px;min-width:200px}.progress-track{flex:1;height:8px;background:#e8eaed;border-radius:999px;overflow:hidden}.progress-fill{height:100%;background:#34a853;border-radius:999px}.progress-label{font-size:.78rem;color:#5f6368;white-space:nowrap}.empty-state{background:#fff;border:1px dashed #dadce0;border-radius:10px;padding:48px;text-align:center;color:#9aa0a6}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.modal{background:#fff;border-radius:12px;width:100%;max-width:480px;box-shadow:0 20px 60px #00000040;max-height:90vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid #eef0f2}.modal-header h3{margin:0;font-size:1.2rem;color:#1f2937}.modal-close{background:none;border:none;font-size:1.1rem;color:#9aa0a6;cursor:pointer}.modal-form{padding:24px;display:flex;flex-direction:column;gap:16px}.modal-form label{display:flex;flex-direction:column;gap:6px;font-size:.85rem;font-weight:600;color:#3c4043}.modal-form input,.modal-form select,.modal-form textarea{padding:10px 12px;border:1px solid #dadce0;border-radius:8px;font-size:.9rem;font-weight:400;color:#333;font-family:inherit}.modal-form input:focus,.modal-form select:focus,.modal-form textarea:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea26}.modal-form input:disabled{background:#f5f5f5;color:#9aa0a6}.form-row{display:flex;gap:16px}.form-row label{flex:1}.modal-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:8px}.btn-primary{background:#2563eb;color:#fff;border:none;padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer}.btn-primary:hover{background:#1d4ed8}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:#fff;color:#3c4043;border:1px solid #dadce0;padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer}.btn-secondary:hover{background:#f1f3f4}.course-detail-container{min-height:100vh;background-color:#f5f5f5}.course-hero{background:linear-gradient(135deg,#667eea,#764ba2);background-size:cover;background-position:center;color:#fff;padding:30px 20px 40px}.course-hero>*{max-width:900px;margin-left:auto;margin-right:auto}.course-hero h1{font-size:2rem;margin:16px auto 10px}.course-hero-summary{font-size:1.05rem;opacity:.92;margin-bottom:20px}.course-hero-progress{display:flex;flex-direction:column;gap:8px;font-size:.9rem}.back-link-btn{background:#0000000f;color:#667eea;border:none;padding:8px 16px;border-radius:4px;font-weight:600;cursor:pointer;font-size:.9rem}.back-link-btn.light{background:#fff3;color:#fff}.back-link-btn.light:hover{background:#ffffff4d}.progress-bar{width:100%;height:8px;background:#eee;border-radius:4px;overflow:hidden}.progress-bar.light{background:#ffffff4d}.progress-fill{height:100%;background:linear-gradient(90deg,#43e97b,#38f9d7);transition:width .3s ease}.module-list{max-width:900px;margin:0 auto;padding:30px 20px}.module-list h2{margin-bottom:18px;color:#333}.modules{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}.module-row{background:#fff;border-radius:8px;padding:16px;display:flex;align-items:center;gap:16px;cursor:pointer;box-shadow:0 1px 4px #00000014;transition:all .2s ease;border-left:4px solid transparent}.module-row:hover{transform:translate(4px);box-shadow:0 3px 12px #0000001f}.module-row.completed{border-left-color:#43e97b}.module-index{width:36px;height:36px;border-radius:50%;background:#e0e7ff;color:#667eea;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.module-row.completed .module-index{background:#43e97b;color:#fff}.module-info{flex:1}.module-info h3{font-size:1.05rem;color:#333;margin:0 0 4px}.module-info p{font-size:.88rem;color:#777;margin:0}.module-aside{display:flex;align-items:center;gap:12px;color:#999}.read-time{font-size:.8rem;background:#f0f0f0;padding:3px 10px;border-radius:12px}.chevron{font-size:1.5rem;color:#ccc}.module-view-container{min-height:100vh;background:#f5f5f5;padding-bottom:40px}.module-topbar{max-width:760px;margin:0 auto;padding:20px;display:flex;justify-content:space-between;align-items:center}.completed-pill{background:#e6f9ef;color:#1aa463;padding:6px 14px;border-radius:16px;font-weight:600;font-size:.85rem}.module-article{max-width:760px;margin:0 auto;background:#fff;border-radius:8px;padding:32px;box-shadow:0 2px 8px #00000014}.module-article-header h1{font-size:1.8rem;color:#222;margin-bottom:8px}.module-subheadline{color:#666;font-size:1.05rem;margin-bottom:20px}.module-hero-img{width:100%;border-radius:8px;margin-bottom:24px}.module-content{font-size:1.05rem;line-height:1.7;color:#333}.module-content h2{font-size:1.4rem;margin:28px 0 12px;color:#222}.module-content h3{font-size:1.15rem;margin:22px 0 10px;color:#222}.module-content p{margin:0 0 16px}.module-content ul,.module-content ol{margin:0 0 16px 24px}.module-content li{margin-bottom:8px}.module-content a{color:#667eea}.module-content blockquote{border-left:4px solid #667eea;background:#f6f7ff;margin:0 0 16px;padding:12px 18px;color:#555;font-style:italic}.module-content img{max-width:100%;border-radius:6px}.module-content figure{margin:0 0 16px}.module-content figcaption{font-size:.85rem;color:#999;text-align:center;margin-top:6px}.bigfact-title{font-weight:700;color:#667eea;margin-bottom:4px}.module-footer{max-width:760px;margin:24px auto 0;padding:0 20px;display:flex;gap:12px;align-items:center;justify-content:space-between}.nav-btn{background:#fff;color:#667eea;border:1px solid #d8dcf5;padding:12px 18px;border-radius:6px;font-weight:600;cursor:pointer}.nav-btn:disabled{opacity:.4;cursor:not-allowed}.complete-btn{flex:1;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:12px 18px;border-radius:6px;font-weight:700;cursor:pointer}.complete-btn:disabled{opacity:.7;cursor:not-allowed}.module-row.locked{opacity:.6;cursor:not-allowed}.module-row.locked:hover{background:inherit}.module-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:6px}.quiz-badge{display:inline-block;background:#ede9fe;color:#6d28d9;font-size:.72rem;font-weight:600;padding:3px 9px;border-radius:999px}.lock-note{font-size:.72rem;color:#9aa0a6;font-style:italic}.locked-notice{background:#fff;border-radius:12px;padding:48px 32px;text-align:center;max-width:520px;margin:40px auto;box-shadow:0 2px 12px #00000014}.locked-icon{font-size:2.4rem;margin-bottom:8px}.locked-notice h2{margin:0 0 8px;color:#1f2937}.locked-notice p{color:#6b7280;margin-bottom:20px}.final-result{max-width:820px;margin:24px auto 0;padding:24px 28px;border-radius:12px;border:1px solid transparent}.final-result.passed{background:#e6f4ea;border-color:#b7e1c4}.final-result.failed{background:#fce8e6;border-color:#f3c0bb}.final-result h2{margin:0 0 8px;color:#1f2937}.final-result p{margin:0 0 16px;color:#3c4043}.retake-btn{background:#d93025;color:#fff;border:none;padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer}.retake-btn:hover{background:#b3261e}.retake-btn.outline{background:#fff;color:#137333;border:1px solid #b7e1c4}.retake-btn.outline:hover{background:#f1faf3}.retake-btn:disabled{opacity:.7;cursor:not-allowed}.quiz-section{max-width:820px;margin:28px auto 60px;background:#fff;border-radius:12px;padding:28px;box-shadow:0 2px 12px #00000014}.quiz-header h2{margin:0 0 6px;color:#1f2937}.quiz-header p{margin:0 0 8px;color:#6b7280;font-size:.92rem}.quiz-best{color:#6d28d9;font-weight:600}.quiz-questions{list-style:none;padding:0;margin:16px 0 0;display:flex;flex-direction:column;gap:22px}.quiz-question{border-top:1px solid #eef0f2;padding-top:18px}.quiz-q-text{font-weight:600;color:#1f2937;margin:0 0 12px;line-height:1.5}.quiz-q-num{color:#6d28d9;margin-right:4px}.quiz-options{display:flex;flex-direction:column;gap:10px}.quiz-option{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px solid #dadce0;border-radius:8px;cursor:pointer;font-size:.92rem;color:#3c4043;transition:border-color .15s,background .15s}.quiz-option:hover{border-color:#a78bfa}.quiz-option.selected{border-color:#7c3aed;background:#f5f3ff}.quiz-option.correct{border-color:#34a853;background:#e6f4ea}.quiz-option.incorrect{border-color:#d93025;background:#fce8e6}.quiz-option input{accent-color:#7c3aed}.quiz-submit{margin-top:22px}.quiz-result{margin-top:22px;border-top:1px solid #eef0f2;padding-top:18px}.quiz-score{font-size:1.05rem;color:#1f2937;margin:0 0 16px}.quiz-result-actions{display:flex;gap:12px;flex-wrap:wrap}.notfound-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:20px}.notfound-content{background:#fff;padding:60px 40px;border-radius:8px;text-align:center;box-shadow:0 10px 25px #0003;max-width:500px}.notfound-content h1{font-size:4rem;margin:0;color:#667eea}.notfound-content h2{font-size:1.5rem;margin:15px 0;color:#333}.notfound-content p{color:#666;margin:15px 0 30px;font-size:1rem}.back-link{display:inline-block;padding:12px 30px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;text-decoration:none;border-radius:4px;font-weight:600;transition:all .3s ease}.back-link:hover{transform:translateY(-2px);box-shadow:0 4px 15px #667eea66}#root{width:100%;min-height:100vh}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5;color:#333}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}button{cursor:pointer;font-size:1rem;border:none;border-radius:4px;padding:10px 20px;transition:all .3s ease}input,textarea,select{font-size:1rem;padding:10px;border:1px solid #ddd;border-radius:4px;font-family:inherit}input:focus,textarea:focus,select:focus{outline:none;border-color:#007bff;box-shadow:0 0 0 3px #007bff1a}.loading{display:flex;align-items:center;justify-content:center;min-height:200px;color:#666;font-size:1.1rem}.error-message{padding:12px 16px;background-color:#ffebee;color:#c62828;border-left:4px solid #c62828;border-radius:4px;margin-bottom:20px}