.orientation-overlay{position:fixed;inset:0;background:#00000080;z-index:9999;display:flex;align-items:center;justify-content:center}.orientation-modal{background:#fff;border-radius:12px;width:min(720px,92vw);max-height:88vh;display:flex;flex-direction:column;box-shadow:0 8px 32px #0000002e}.orientation-header{display:flex;justify-content:space-between;align-items:center;padding:20px 28px 12px;border-bottom:1px solid #eee}.orientation-header h2{margin:0;font-size:1.25rem;color:#111}.orientation-close-btn{background:none;border:none;font-size:1.6rem;color:#888;cursor:pointer;padding:0 4px;line-height:1}.orientation-close-btn:hover{color:#333}.orientation-scroll{overflow-y:auto;padding:20px 28px 28px;font-size:.9rem;line-height:1.65;color:#333}.orientation-scroll h3{margin:28px 0 10px;font-size:1.05rem;color:#111}.orientation-scroll h3:first-child{margin-top:8px}.orientation-scroll h4{margin:18px 0 8px;font-size:.95rem;color:#222}.orientation-scroll p{margin:8px 0}.orientation-scroll ul,.orientation-scroll ol{margin:8px 0 8px 20px;padding:0}.orientation-scroll li{margin:4px 0}.orientation-subtitle{font-style:italic;color:#555;margin-bottom:16px}.orientation-dimensions{background:#f8f9fb;border-radius:8px;padding:16px 20px;margin:12px 0}.orientation-dimensions p{margin:10px 0}.orientation-note{background:#eef6ee;border-left:3px solid #4caf50;padding:10px 14px;border-radius:4px;margin:10px 0}.orientation-closing{background:#f5f5f5;border-radius:8px;padding:16px 20px;margin-top:20px;text-align:center;font-style:italic;color:#444}:root{--header-height: 70px;--primary: #28a745;--text-dark: #333;--border-light: #e0e0e0}.navbar{height:var(--header-height);background-color:#fff;border-bottom:1px solid var(--border-light);display:flex;justify-content:space-between;align-items:center;padding:0 2rem;box-shadow:0 2px 4px #00000008;position:sticky;top:0;z-index:1000}.logo{font-size:1.5rem;font-weight:800;color:var(--text-dark);text-decoration:none;display:flex;align-items:center;gap:5px}.logo span{color:var(--primary)}.nav-links{display:flex;gap:30px}.nav-link{text-decoration:none;color:#555;font-weight:500;font-size:.95rem;transition:color .2s;cursor:pointer}.nav-link:hover{color:var(--primary)}.nav-right{display:flex;align-items:center;gap:20px}.login-btn{background-color:var(--primary);color:#fff;border:none;padding:8px 24px;border-radius:50px;font-weight:600;cursor:pointer;transition:background .2s}.login-btn:hover{background-color:#1e7e34}.profile-container{position:relative;display:flex;align-items:center;gap:10px;cursor:pointer}.user-name{font-weight:600;font-size:.9rem;color:var(--text-dark)}.avatar-circle{width:40px;height:40px;background-color:var(--primary);color:#fff;border-radius:50%;display:flex;justify-content:center;align-items:center;font-weight:700;font-size:1.1rem;border:2px solid #e8f5e9}.dropdown-menu{position:absolute;top:55px;right:0;width:260px;background:#fff;border-radius:8px;box-shadow:0 4px 20px #00000026;border:1px solid #f0f0f0;padding:10px 0;animation:slideIn .2s ease-out;overflow:hidden}@keyframes slideIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.dropdown-header{padding:10px 20px;border-bottom:1px solid #f0f0f0;margin-bottom:5px}.dropdown-header strong{display:block;color:var(--text-dark)}.dropdown-header span{font-size:.8rem;color:#777;text-transform:uppercase}.dropdown-item{display:flex;align-items:center;gap:10px;width:100%;padding:12px 20px;border:none;background:none;text-align:left;cursor:pointer;color:#555;font-size:.9rem;transition:background .1s}.dropdown-item:hover{background-color:#f9f9f9;color:var(--primary)}.dropdown-item.logout{color:#dc3545;border-top:1px solid #f0f0f0;margin-top:5px}.dropdown-item.logout:hover{background-color:#fff5f5}.stats-box{background-color:#f8f9fa;margin:10px 20px;padding:10px;border-radius:6px;font-size:.85rem;color:#555;border:1px solid #eee}:root{--ts-primary: #28a745;--ts-primary-hover: #218838;--ts-dark: #2c3e50;--ts-error: #dc3545;--ts-border: #e2e8f0}.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#0f172a99;display:flex;justify-content:center;align-items:center;z-index:2000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:#fff;padding:2.5rem;border-radius:16px;width:100%;max-width:420px;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;position:relative;animation:slideUp .3s ease-out}.modal-header{margin-bottom:2rem;text-align:center}.modal-header h2{color:var(--ts-dark);font-size:1.8rem;margin-bottom:.5rem;font-weight:700}.modal-header p{color:#64748b;font-size:.95rem}.close-btn{position:absolute;top:20px;right:20px;background:#f1f5f9;border:none;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;color:#64748b;cursor:pointer;transition:all .2s}.close-btn:hover{background:#e2e8f0;color:var(--ts-dark)}.form-group{margin-bottom:1.25rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--ts-dark);font-size:.85rem}.input-wrapper{position:relative;display:flex;align-items:center;width:100%}.input-icon-left{position:absolute;left:14px;color:#94a3b8;pointer-events:none}.input-icon-right{position:absolute;right:14px;background:none;border:none;color:#94a3b8;cursor:pointer;display:flex;align-items:center;padding:0;transition:color .2s}.input-icon-right:hover{color:var(--ts-primary)}.input-with-icon{width:100%;padding:12px 14px 12px 42px!important;border:1.5px solid var(--ts-border);border-radius:10px;font-size:1rem;transition:all .2s}.input-with-icon.password-field{padding-right:44px!important}.input-with-icon:focus{outline:none;border-color:var(--ts-primary);box-shadow:0 0 0 4px #28a7451a}.auth-submit-btn{width:100%;padding:14px;background-color:var(--ts-primary);color:#fff;border:none;border-radius:10px;font-size:1rem;font-weight:700;cursor:pointer;margin-top:1rem;transition:transform .1s,background .2s}.auth-submit-btn:hover{background-color:var(--ts-primary-hover)}.auth-submit-btn:active{transform:scale(.98)}.auth-switch{margin-top:1.5rem;text-align:center;font-size:.9rem;color:#64748b}.auth-switch span{color:var(--ts-primary);font-weight:700;cursor:pointer;margin-left:5px}.auth-switch span:hover{text-decoration:underline}.modal-error-message{background-color:#fef2f2;color:#b91c1c;border:1px solid #fee2e2;padding:12px;border-radius:8px;margin-bottom:1.5rem;text-align:center;font-size:.85rem;font-weight:600;animation:shake .4s cubic-bezier(.36,.07,.19,.97) both}@keyframes shake{10%,90%{transform:translate3d(-1px,0,0)}20%,80%{transform:translate3d(2px,0,0)}30%,50%,70%{transform:translate3d(-4px,0,0)}40%,60%{transform:translate3d(4px,0,0)}}.answer-guidelines-overlay{position:fixed;inset:0;background:#0f172a99;display:flex;align-items:center;justify-content:center;z-index:2500;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.answer-guidelines-modal{background:#fff;border-radius:16px;padding:0;max-width:720px;width:90vw;max-height:85vh;display:flex;flex-direction:column;box-shadow:0 25px 50px -12px #00000040;animation:slideUp .3s ease-out}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.answer-guidelines-header{padding:24px 28px 16px;border-bottom:1px solid #e2e8f0;flex-shrink:0}.answer-guidelines-header h2{margin:0;font-size:1.5rem;font-weight:700;color:#2c3e50}.answer-guidelines-header p{margin:8px 0 0;font-size:.95rem;color:#64748b}.answer-guidelines-scroll{overflow-y:auto;padding:24px 28px;flex:1;min-height:0;max-height:55vh}.answer-guidelines-scroll h3{font-size:1.1rem;font-weight:600;color:#2c3e50;margin:20px 0 10px}.answer-guidelines-scroll h3:first-child{margin-top:0}.answer-guidelines-scroll p{margin:0 0 12px;line-height:1.6;color:#334155;font-size:.95rem}.answer-guidelines-scroll ul,.answer-guidelines-scroll ol{margin:8px 0 16px;padding-left:24px}.answer-guidelines-scroll ol{padding-left:28px}.answer-guidelines-scroll li{margin-bottom:8px;line-height:1.5;color:#334155}.answer-guidelines-good{background:#f0fdf4;border-left:4px solid #22c55e;padding:12px 16px;margin:12px 0;border-radius:0 8px 8px 0}.answer-guidelines-good p{margin:0;font-style:italic;color:#166534}.answer-guidelines-bad{background:#fef2f2;border-left:4px solid #ef4444;padding:12px 16px;margin:12px 0;border-radius:0 8px 8px 0}.answer-guidelines-bad p{margin:0;font-style:italic;color:#991b1b}.answer-guidelines-bad p strong{font-style:normal}.answer-guidelines-footer{padding:20px 28px 24px;border-top:1px solid #e2e8f0;flex-shrink:0}.answer-guidelines-continue-btn{width:100%;padding:12px 24px;font-size:1rem;font-weight:600;border-radius:8px;border:none;cursor:pointer;background:#28a745;color:#fff;transition:background .2s}.answer-guidelines-continue-btn:hover:not(:disabled){background:#218838}.answer-guidelines-continue-btn:disabled{background:#94a3b8;cursor:not-allowed}.notification-toast{position:fixed;top:80px;left:50%;transform:translate(-50%);padding:12px 24px;border-radius:8px;color:#fff;font-weight:500;box-shadow:0 4px 12px #00000026;display:flex;align-items:center;gap:15px;z-index:2000;animation:slideDown .3s ease-out;min-width:300px;justify-content:space-between}.notification-toast.success{background-color:#28a745}.notification-toast.error{background-color:#dc3545}.toast-close{background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;line-height:1;opacity:.8}.toast-close:hover{opacity:1}@keyframes slideDown{0%{top:0;opacity:0}to{top:80px;opacity:1}}.intro-container{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;margin-top:100px;padding:0 20px}.intro-title{font-size:3rem;color:#222;margin-bottom:1rem}.intro-title span{color:var(--primary)}.intro-desc{max-width:600px;color:#666;font-size:1.1rem;line-height:1.6;margin-bottom:2rem}.start-btn{background-color:green;color:#fff;padding:12px 30px;font-size:1.1rem;font-weight:700;border-radius:5px;transition:.3s}.start-btn:hover{background-color:var(--primary-hover)}:root{--admin-bg-color: #bcfbd1;--admin-accent-dark: #00661f;--admin-accent-hover: #004d17;--strict-red: #ef4444;--strict-bg: #fee2e2;--free-green: #10b981;--free-bg: #d1fae5;--card-white: #ffffff}.admin-page-root{background-color:var(--admin-bg-color);min-height:100vh;width:100%;margin:0;padding:0;font-family:Inter,Segoe UI,sans-serif}.batch-admin-results-page{background-color:#f8fafc}.admin-container{max-width:1440px;margin:0 auto;padding:3rem 2rem}.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:3rem}.admin-header h1{color:var(--admin-accent-dark);font-size:2.2rem;font-weight:800;margin:0}.admin-header p{color:#4a5568;margin-top:5px;font-size:1rem}.create-course-btn{background-color:var(--admin-accent-dark);color:#fff;border:none;padding:14px 28px;border-radius:12px;font-weight:700;cursor:pointer;box-shadow:0 4px 12px #00661f33;transition:all .2s ease}.create-course-btn:hover{background-color:var(--admin-accent-hover);transform:translateY(-2px)}.admin-stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin-bottom:4rem}.stat-card{background:var(--card-white);padding:30px;border-radius:20px;box-shadow:0 10px 25px #00661f14;border-left:8px solid var(--admin-accent-dark)}.stat-label{text-transform:uppercase;font-size:.75rem;font-weight:800;color:#718096;letter-spacing:1px}.stat-card h3{margin:10px 0 0;font-size:2.5rem;color:var(--admin-accent-dark)}.admin-course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:30px}.admin-course-card{background:var(--card-white);border-radius:24px;overflow:hidden;box-shadow:0 10px 30px #0000000d;display:flex;flex-direction:column;transition:all .3s ease;height:100%}.admin-course-card:hover{transform:translateY(-10px);box-shadow:0 20px 40px #00661f1f}.admin-card-thumb{height:180px;position:relative;cursor:pointer;background:#000}.admin-card-thumb img{width:100%;height:100%;object-fit:cover;transition:opacity .3s ease}.thumb-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#00661fcc;color:#fff;display:flex;align-items:center;justify-content:center;opacity:0;transition:.3s ease;font-weight:800;font-size:.9rem}.admin-card-thumb:hover .thumb-overlay{opacity:1}.admin-card-thumb:hover img{opacity:.5}.admin-card-content{padding:1.5rem;display:flex;flex-direction:column;flex-grow:1}.card-top-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.flow-badge{padding:5px 12px;border-radius:50px;font-size:.7rem;font-weight:800;text-transform:uppercase}.flow-badge.strict{background:var(--strict-bg);color:var(--strict-red)}.flow-badge.free{background:var(--free-bg);color:var(--free-green)}.admin-menu-dropdown{position:relative}.dots-btn{background:none;border:none;font-size:1.5rem;color:#a0aec0;cursor:pointer;padding:0 5px;line-height:1}.dots-btn:hover{color:#1a202c}.dropdown-content{display:none;position:absolute;right:0;top:30px;background:#fff;border:1px solid #edf2f7;border-radius:12px;box-shadow:0 10px 25px #0000001a;z-index:50;min-width:150px;overflow:hidden}.admin-menu-dropdown:hover .dropdown-content{display:block}.delete-action{width:100%;padding:12px 16px;text-align:left;border:none;background:none;color:var(--strict-red);font-weight:600;cursor:pointer;font-size:.85rem}.delete-action:hover{background:#fff5f5}.admin-card-title{margin:auto 0 0;color:#1a202c;font-size:1.25rem;font-weight:700;line-height:1.4}.admin-card-desc{margin:8px 0 0;color:#718096;font-size:.9rem;line-height:1.5}@media(max-width:900px){.admin-stats-grid{grid-template-columns:1fr}.admin-header{flex-direction:column;align-items:flex-start;gap:20px}}.back-btn-styled{background:none;border:none;color:var(--admin-accent-dark);display:flex;align-items:center;gap:8px;font-weight:700;cursor:pointer;padding:0;margin-bottom:15px}.course-editing-label{font-size:1.1rem;color:#555}.course-editing-label span{color:var(--admin-accent-dark);font-weight:800}.editor-layout{display:flex;flex-direction:column;gap:30px;margin-top:20px}.editor-chapter-card{background:#fff;border-radius:20px;box-shadow:0 10px 25px #0000000d;overflow:hidden;border:1px solid rgba(0,0,0,.05)}.chapter-card-header{background:#f8fafc;padding:20px 30px;border-bottom:1px solid #edf2f7}.chapter-badge{font-size:.7rem;font-weight:800;color:#94a3b8;letter-spacing:1px}.editor-lessons-list{padding:20px 30px}.editor-lesson-row{display:flex;justify-content:space-between;align-items:center;padding:15px 0;border-bottom:1px solid #f1f5f9}.editor-lesson-row:last-child{border-bottom:none}.lesson-main-info{display:flex;align-items:center;gap:15px}.text-group h4{margin:0;color:#1e293b;font-size:1rem}.pdf-status-text{font-size:.8rem;margin-top:4px;font-weight:500}.pdf-status-text.has-file{color:#10b981}.pdf-status-text.no-file{color:#ef4444}.action-btn-upload{background:#3b82f6;color:#fff;padding:8px 16px;border-radius:8px;font-size:.85rem;font-weight:700;cursor:pointer;transition:.2s}.action-btn-upload:hover{background:#2563eb}.quiz-btn-small{border:none;padding:8px 16px;border-radius:8px;font-size:.85rem;font-weight:700;color:#fff;cursor:pointer}.quiz-btn-small.pre{background:#8b5cf6}.quiz-btn-small.post{background:#f59e0b}.creator-card{background:#fff;padding:2.5rem;border-radius:24px;box-shadow:0 10px 30px #0000000d}.form-group{margin-bottom:1.5rem;display:flex;flex-direction:column;gap:8px}.form-group label{font-weight:700;color:var(--admin-accent-dark)}.form-group input,.form-group textarea{padding:12px 15px;border-radius:8px;border:1px solid #ddd;font-size:1rem}.curriculum-builder{margin-top:3rem;border-top:2px solid #f0fdf4;padding-top:2rem}.builder-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.add-chapter-btn{background:var(--admin-accent-dark);color:#fff;border:none;padding:10px 20px;border-radius:8px;cursor:pointer;font-weight:600}.chapter-form-box{background:#f8fafc;padding:20px;border-radius:15px;margin-bottom:20px;border:1px solid #e2e8f0}.chapter-title-input{width:100%;font-size:1.1rem;font-weight:700;margin-bottom:15px;padding:10px;border-radius:6px;border:1px solid #cbd5e1}.lesson-form-row{margin-bottom:10px}.lesson-form-row input{width:100%;padding:8px;border-radius:5px;border:1px solid #e2e8f0}.add-lesson-btn{background:var(--admin-accent-dark);color:#fff;border:none;padding:10px 20px;border-radius:10px;font-size:.9rem;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:8px;transition:opacity .2s,transform .2s}.add-lesson-btn:hover:not(:disabled){opacity:.9;transform:translateY(-1px)}.add-lesson-btn:disabled{opacity:.5;cursor:not-allowed}.add-lesson-small{background:none;border:1px dashed var(--admin-accent-dark);color:var(--admin-accent-dark);padding:5px 15px;border-radius:5px;cursor:pointer;font-size:.8rem}.publish-btn{width:100%;margin-top:2rem;padding:15px;background:var(--free-green);color:#fff;border:none;border-radius:12px;font-size:1.1rem;font-weight:800;cursor:pointer}.back-link-styled{background:none;border:none;color:var(--admin-accent-dark);display:flex;align-items:center;gap:8px;font-weight:700;cursor:pointer;padding:0;margin-bottom:1rem}.editor-header-actions{display:flex;align-items:center;gap:10px}.clone-section-btn{background:#0d9488}.clone-section-btn:hover{background:#0f766e}.modal-content.clone-section-modal{width:min(92vw,560px)!important;max-width:none;border-radius:14px}.clone-section-modal h2{margin:0 0 8px;color:#1e293b}.clone-section-subtitle{margin:0 0 16px;color:#64748b;font-size:.92rem}.clone-section-label{display:block;margin:12px 0 6px;font-weight:600;color:#334155}.clone-section-select,.clone-section-input{width:100%;padding:10px 12px;border:1px solid #d1d5db;border-radius:8px;font-size:.95rem;font-family:inherit;background:#fff}.clone-section-select:focus,.clone-section-input:focus{outline:none;border-color:#0d9488;box-shadow:0 0 0 3px #0d948826}.clone-section-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.editing-label{font-size:1.1rem;color:#4a5568;margin:0}.editing-label span{color:var(--admin-accent-dark);font-weight:800}.editor-grid{display:flex;flex-direction:column;gap:2.5rem;margin-top:2rem}.editor-chapter-card{background:#fff;border-radius:24px;box-shadow:0 10px 30px #0000000d;overflow:hidden;border:1px solid rgba(0,0,0,.03)}.chapter-card-header{background:#f8fafc;padding:25px 35px;border-bottom:1px solid #edf2f7}.section-label{font-size:.7rem;font-weight:800;color:#94a3b8;letter-spacing:1.5px}.chapter-card-header h3{margin:5px 0 0;color:var(--admin-accent-dark);font-size:1.4rem}.editor-lessons-container{padding:15px 35px}.lesson-editor-row{display:flex;justify-content:space-between;align-items:center;padding:20px 0;border-bottom:1px solid #f1f5f9}.lesson-editor-row:last-child{border-bottom:none}.lesson-main-info{display:flex;align-items:center;gap:18px}.lesson-reorder-btns{display:flex;flex-direction:column;gap:0}.reorder-btn{display:flex;align-items:center;justify-content:center;padding:2px;border:none;background:transparent;color:#94a3b8;cursor:pointer;border-radius:4px;transition:color .2s,background .2s}.reorder-btn:hover:not(:disabled){color:var(--admin-accent-dark);background:#00661f1a}.reorder-btn:disabled{opacity:.35;cursor:not-allowed}.lesson-icon{color:#64748b}.lesson-text-meta h4{margin:0;color:#1e293b;font-size:1.05rem;font-weight:600}.pdf-status-badge{display:flex;align-items:center;gap:6px;font-size:.75rem;font-weight:600;margin-top:5px;padding:2px 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