.login .login-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem;box-sizing:border-box}.login .login-card{background:#fff;border-radius:16px;padding:2.5rem 2rem;box-shadow:0 20px 25px #0000001a;width:100%;max-width:450px;box-sizing:border-box}.login .login-header{text-align:center;margin-bottom:1.5rem}.login .login-header img{width:72px;height:72px;margin-bottom:1rem}.login .login-header h1{font-size:1.8rem;color:#183547;margin-bottom:.5rem}.login .login-header p{color:#316180;font-size:.9rem;margin:0}.login .login-form{display:flex;flex-direction:column;gap:1rem;margin-bottom:1.5rem}.login .form-group{display:flex;flex-direction:column;gap:.25rem}.login .form-label{font-weight:600;color:#244b63;font-size:.85rem;text-transform:uppercase;letter-spacing:.03em}.login .form-input{padding:.5rem .75rem;border:1px solid #cbd5e1;border-radius:8px;font-size:.95rem;color:#183547}.login .btn-primary{width:100%;padding:.6rem;font-size:.95rem;border-radius:8px}.login .login-footer{display:flex;justify-content:center;align-items:center;gap:.5rem;border-top:1px solid #e5e7eb;padding-top:1.5rem}.login .login-footer p{color:#316180;margin:0}.login .login-footer .btn-secondary{padding:.35rem .75rem;font-size:.85rem}@media(max-width:480px){.login .login-container{padding:.75rem}.login .login-card{padding:1.5rem 1rem;max-width:95%}.login .login-header h1{font-size:1.5rem}.login .form-input,.login .btn-primary,.login .login-footer .btn-secondary{font-size:.9rem}}.signup .signup-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);padding:1rem;box-sizing:border-box}.signup .signup-card{background:#fff;border-radius:16px;padding:2.5rem 2rem;box-shadow:0 20px 25px #0000001a;width:100%;max-width:450px;box-sizing:border-box}.signup .signup-header{text-align:center;margin-bottom:1.5rem}.signup .signup-header img,.signup .signup-header i{width:72px;height:72px;margin-bottom:1rem;color:#667eea}.signup .signup-header h1{font-size:1.8rem;color:#183547;margin-bottom:.5rem}.signup .signup-header p{color:#316180;font-size:.9rem;margin:0}.signup .signup-form{display:flex;flex-direction:column;gap:1rem;margin-bottom:1.5rem}.signup .form-group{display:flex;flex-direction:column;gap:.25rem}.signup .form-label{font-weight:600;color:#244b63;font-size:.85rem;text-transform:uppercase;letter-spacing:.03em}.signup .form-input{padding:.5rem .75rem;border:1px solid #cbd5e1;border-radius:8px;font-size:.95rem;color:#183547}.signup .btn-primary{width:100%;padding:.6rem;font-size:.95rem;border-radius:8px}.signup .signup-footer{display:flex;justify-content:center;align-items:center;gap:.5rem;border-top:1px solid #e5e7eb;padding-top:1.5rem}.signup .signup-footer p{color:#316180;margin:0}.signup .signup-footer .btn-secondary{padding:.35rem .75rem;font-size:.85rem}@media(max-width:480px){.signup .signup-container{padding:.75rem}.signup .signup-card{padding:1.5rem 1rem;max-width:95%}.signup .signup-header h1{font-size:1.5rem}.signup .form-input,.signup .btn-primary,.signup .signup-footer .btn-secondary{font-size:.9rem}}.dashboard .dashboard-header{text-align:center;margin-bottom:3rem}.dashboard .dashboard-header h1{font-size:2.5rem;color:#183547;margin-bottom:.5rem}.dashboard .dashboard-header p{font-size:1.2rem}.dashboard .classes-section{margin-bottom:3rem}.dashboard .section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.dashboard .section-header h2{font-size:1.8rem;color:#183547;display:flex;align-items:center;gap:.5rem}.dashboard .loading-state,.dashboard .error-state,.dashboard .empty-state{text-align:center;padding:3rem;color:#316180}.dashboard .loading-state i,.dashboard .empty-state i{font-size:3rem;margin-bottom:1rem;color:#3f799e}.dashboard .empty-state h3{color:#244b63;margin-bottom:.5rem}.dashboard .classes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:2rem}.dashboard .class-card-menu{position:relative}.dashboard .btn-icon{background:none;border:none;cursor:pointer;padding:.25rem .5rem;color:#316180;border-radius:4px;transition:all .2s}.dashboard .btn-icon:hover{background-color:#f3f4f6;color:#183547}.dashboard .dropdown-menu{position:absolute;top:100%;right:0;background-color:#fff;border:1px solid #e5e7eb;border-radius:4px;box-shadow:0 2px 8px #0000001a;z-index:1000;min-width:150px;margin-top:.25rem;overflow:hidden}.dashboard .dropdown-item{width:100%;padding:.5rem 1rem;text-align:left;background:none;border:none;cursor:pointer;font-size:.875rem;transition:background-color .2s}.dashboard .dropdown-item.unenroll-item{color:#dc2626}.dashboard .dropdown-item.unenroll-item:hover{background-color:#fef2f2}.dashboard .dropdown-item i{margin-right:.5rem}.dashboard .class-card{background:#fff;border-radius:12px;padding:1.5rem;box-shadow:0 4px 6px #0000001a;border:2px solid transparent;transition:all .2s;cursor:pointer}.dashboard .class-card:hover{transform:translateY(-4px);box-shadow:0 12px 25px #00000026;border-color:#667eea}.dashboard .class-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.dashboard .class-header-right{display:flex;align-items:center;gap:.5rem}.dashboard .class-header h3{font-size:1.3rem;color:#183547;margin:0}.dashboard .join-code{background:#f3f4f6;color:#244b63;padding:.25rem .75rem;border-radius:20px;font-family:monospace;font-weight:600;font-size:.9rem}.dashboard .class-info{margin-bottom:1.5rem}.dashboard .class-info p{display:flex;align-items:center;gap:.5rem;margin-bottom:.5rem}.dashboard .class-info i{width:16px;color:#316180}.dashboard .class-actions{display:flex;justify-content:center}@media(max-width:768px){.dashboard .dashboard-header h1{font-size:2rem}.dashboard .classes-grid{grid-template-columns:1fr}.dashboard .section-header{flex-direction:column;gap:1rem;align-items:stretch}.dashboard .section-header button{width:100%}}.create-class .create-class-header{text-align:center;margin-bottom:1.5rem}.create-class .create-class-header h1{font-size:1.75rem;color:#183547;margin-bottom:.25rem;display:flex;align-items:center;justify-content:center;gap:.5rem}.create-class .create-class-header p{font-size:.95rem;color:#316180;margin:0}.create-class .create-class-form{max-width:450px;margin:0 auto}.create-class .form-help{color:#316180;font-size:.8rem;margin-top:.25rem;display:block}.create-class .form-info{margin:1.25rem 0}.create-class .info-card{background:#f8fafc;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;display:flex;gap:.75rem;align-items:flex-start}.create-class .info-card i{color:#3b82f6;font-size:1.25rem;margin-top:.15rem}.create-class .info-card h4{color:#183547;margin-bottom:.5rem;font-size:.95rem}.create-class .info-card ul{color:#316180;padding-left:1rem;font-size:.85rem}.create-class .info-card li{margin-bottom:.25rem}.create-class .form-actions{display:flex;gap:.75rem;justify-content:flex-end;margin-top:1.5rem}.create-class .success-details{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;padding:1rem;margin:1rem 0}.create-class .detail-item{display:flex;align-items:center;gap:.5rem;margin-bottom:.75rem;flex-wrap:wrap;font-size:.9rem}.create-class .join-code-display{background:#183547;color:#fff;padding:.35rem .75rem;border-radius:6px;font-family:monospace;font-weight:600;font-size:.95rem}.create-class .btn-sm{padding:.4rem .75rem;font-size:.85rem}.create-class .success-actions{display:flex;gap:.75rem;justify-content:center;margin-top:1.5rem}@media(max-width:768px){.create-class .create-class-header h1{font-size:1.5rem}.create-class .form-actions,.create-class .success-actions{flex-direction:column}.create-class .detail-item{align-items:flex-start}}.join-class .join-class-header{text-align:center;margin-bottom:1.5rem}.join-class .join-class-header h1{font-size:1.75rem;color:#183547;margin-bottom:.25rem;display:flex;align-items:center;justify-content:center;gap:.5rem}.join-class .join-class-header p{font-size:.95rem;color:#316180;margin:0}.join-class .join-class-form{max-width:450px;margin:0 auto}.join-class .join-code-input{font-family:monospace;font-size:1rem;text-align:center;letter-spacing:.08em;font-weight:600}.join-class .form-help{color:#316180;font-size:.8rem;margin-top:.25rem;display:block}.join-class .form-info{margin:1.25rem 0}.join-class .info-card{background:#f8fafc;border:1px solid #e5e7eb;border-radius:8px;padding:1rem;display:flex;gap:.75rem;align-items:flex-start}.join-class .info-card i{color:#3b82f6;font-size:1.25rem;margin-top:.15rem}.join-class .info-card h4{color:#183547;margin-bottom:.5rem;font-size:.95rem}.join-class .info-card ol{color:#316180;padding-left:1rem;font-size:.85rem}.join-class .info-card li{margin-bottom:.25rem}.join-class .form-actions{display:flex;gap:.75rem;justify-content:flex-end;margin-top:1.5rem}.join-class .success-details{background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;padding:1rem;margin:1rem 0}.join-class .detail-item{display:flex;align-items:center;gap:.5rem;margin-bottom:.75rem;flex-wrap:wrap;font-size:.9rem}.join-class .join-code-display{background:#183547;color:#fff;padding:.35rem .75rem;border-radius:6px;font-family:monospace;font-weight:600;font-size:.95rem}.join-class .success-actions{display:flex;gap:.75rem;justify-content:center;margin-top:1.5rem}@media(max-width:768px){.join-class .join-class-header h1{font-size:1.5rem}.join-class .form-actions,.join-class .success-actions{flex-direction:column}.join-class .detail-item{align-items:flex-start}}.class-details .class-details-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:2px solid #e5e7eb}.class-details .header-content h1{font-size:2.5rem;color:#244b63;margin-bottom:.5rem;display:flex;align-items:center;gap:.5rem}.class-details .header-content p{font-size:1.2rem;color:#316180}.class-details .class-details-content,.class-details .class-info-card{margin-bottom:2rem}.class-details .class-info-card h2{font-size:1.5rem;color:#183547;margin-bottom:1.5rem;display:flex;align-items:center;gap:.5rem}.class-details .class-info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem}.class-details .info-item{display:flex;flex-direction:column;gap:.5rem}.class-details .info-item label{font-weight:600;color:#183547;font-size:.9rem;text-transform:uppercase;letter-spacing:.05em}.class-details .info-item span{color:#183547;font-size:1.1rem}.class-details .join-code-section{display:flex;align-items:center;gap:.5rem}.class-details .join-code{background:#f3f4f6;color:#244b63;padding:.5rem 1rem;border-radius:6px;font-family:monospace;font-weight:600;font-size:1.1rem}.class-details .main-content-tabs{background:#fff;border-radius:12px;box-shadow:0 4px 6px #0000001a;overflow:hidden}.class-details .tabs-header{display:flex;background:#f8fafc;border-bottom:1px solid #e5e7eb}.class-details .tab-button{flex:1;padding:1rem 1.5rem;border:none;background:transparent;color:#316180;font-weight:500;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center;gap:.5rem}.class-details .tab-button:hover{background:#e5e7eb;color:#244b63}.class-details .tab-button.active{background:#fff;color:#667eea;border-bottom:2px solid #667eea}.class-details .tab-content{padding:2rem}.class-details .section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.class-details .section-header h2{font-size:1.5rem;color:#183547;display:flex;align-items:center;gap:.5rem}.class-details .student-count{background:#667eea;color:#fff;padding:.5rem 1rem;border-radius:20px;font-size:.9rem;font-weight:500}.class-details .loading-state,.class-details .error-state,.class-details .empty-state{text-align:center;padding:3rem;color:#316180}.class-details .loading-state i,.class-details .empty-state i{font-size:3rem;margin-bottom:1rem;color:#3f799e}.class-details .empty-state h3{color:#244b63;margin-bottom:.5rem}.class-details .documents-grid{display:flex;flex-direction:column;gap:1rem;max-width:100%}.class-details .document-card{background:#f8fafc;border:1px solid #e5e7eb;border-radius:8px;padding:1.5rem;display:flex;gap:1rem;align-items:center;position:relative;width:100%;box-sizing:border-box}.class-details .document-card.clickable{cursor:pointer;text-decoration:none;color:inherit;transition:all .2s}.class-details .document-card.clickable:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a;border-color:#cbd5e1}.class-details .document-date{position:absolute;top:1rem;right:1.5rem;font-size:.85rem;color:#316180;font-weight:500}.class-details .document-icon{background:#667eea;color:#fff;width:48px;height:48px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0}.class-details .document-info{flex:1}.class-details .document-info h4{color:#183547;margin:0;font-size:1.1rem}.class-details .document-group-count{color:#316180;font-size:.85rem;margin:.25rem 0 0}.material-group-files-section{margin-top:2rem;padding-top:2rem;border-top:1px solid #e5e7eb}.material-group-files-section h3{color:#183547;font-size:1.25rem;margin-bottom:1rem}.material-group-files-list{display:flex;flex-direction:column;gap:1rem}.material-group-file-item{display:flex;align-items:center;justify-content:space-between;padding:1rem;background:#f8fafc;border:1px solid #e5e7eb;border-radius:8px;transition:all .2s}.material-group-file-item:hover{background:#f1f5f9;border-color:#cbd5e1}.material-group-file-info{display:flex;align-items:center;gap:1rem;flex:1}.material-group-file-info i{font-size:1.5rem;color:#667eea}.material-group-file-info h4{color:#183547;margin:0 0 .25rem;font-size:1rem;font-weight:600}.material-group-file-meta{color:#316180;font-size:.85rem;margin:0}.material-group-file-actions{display:flex;gap:.5rem;flex-shrink:0}.class-details .document-description{color:#316180;margin-bottom:1rem;font-size:.9rem}.class-details .document-meta{display:flex;flex-wrap:wrap;gap:1rem;font-size:.8rem;color:#3f799e}.class-details .document-actions{display:flex;align-items:center}.class-details .students-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem}.class-details .student-card{background:#f8fafc;border:1px solid #e5e7eb;border-radius:8px;padding:1.5rem;display:flex;justify-content:space-between;align-items:center}.class-details .student-info{display:flex;align-items:center;gap:1rem}.class-details .student-avatar{background:#667eea;color:#fff;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center}.class-details .student-details h4{color:#183547;margin-bottom:.25rem}.class-details .student-details p{display:flex;align-items:center;gap:.5rem;font-size:.9rem}.class-details .student-id{color:#3f799e;font-size:.8rem}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:2rem}.modal-content{background:#fff;border-radius:12px;width:100%;max-width:500px;max-height:90vh;overflow-y:auto}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;border-bottom:1px solid #e5e7eb}.modal-header h3{color:#183547;margin:0}.modal-close{background:none;border:none;color:#316180;cursor:pointer;padding:.5rem;border-radius:4px;transition:all .2s}.modal-close:hover{background:#f3f4f6;color:#244b63}.modal-body{padding:1.5rem}.form-control{width:100%;padding:.75rem;border:2px solid #e5e7eb;border-radius:8px;font-size:1rem;transition:border-color .2s}.form-control:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-actions{display:flex;gap:1rem;justify-content:flex-end;margin-top:2rem}@media(max-width:768px){.class-details-header{flex-direction:column;gap:1rem;align-items:stretch}.header-content h1{font-size:2rem}.class-info-grid{grid-template-columns:1fr}.tabs-header{flex-wrap:wrap}.tab-button{flex:1 1 50%;min-width:120px}.documents-grid,.students-list{grid-template-columns:1fr}.document-card{flex-direction:column;text-align:center}.student-card{flex-direction:column;gap:1rem;text-align:center}.form-actions{flex-direction:column}}.schedule-items-grid{display:flex;flex-direction:column;gap:1rem;max-width:100%}.schedule-item-card{background:#f8fafc;border:1px solid #e5e7eb;border-radius:12px;padding:1.5rem;transition:all .2s;box-shadow:0 2px 4px #0000000d;position:relative;width:100%;box-sizing:border-box}.schedule-item-card.clickable{cursor:pointer;text-decoration:none;color:inherit}.schedule-item-card.clickable:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000001a;border-color:#cbd5e1}.schedule-item-date{position:absolute;top:1rem;right:1.5rem;font-size:.85rem;color:#316180;font-weight:500}.schedule-item-card.overdue{border-color:#dc2626;background:#fef2f2}.schedule-item-header{display:flex;align-items:center;gap:1rem}.schedule-item-icon{background:#667eea;color:#fff;width:48px;height:48px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0}.schedule-item-info{flex:1}.schedule-item-info h4{color:#183547;margin:0 0 .5rem;font-size:1.1rem;font-weight:600}.schedule-item-type{display:inline-block;padding:.25rem .75rem;border-radius:20px;font-size:.8rem;font-weight:500;text-transform:uppercase;letter-spacing:.05em}.schedule-item-type.announcement{background:#9ca3af;color:#fff}.schedule-item-type.graded_work{background:#e9d5ff;color:#6b21a8}.schedule-item-type.assignment_in_class,.schedule-item-type.assignment_homework{background:#dbeafe;color:#1e40af}.schedule-item-description{color:#316180;margin-bottom:1rem;font-size:.9rem;line-height:1.5}.announcement-content-box{background:#f1f1f1;border-radius:8px;padding:1rem;margin-top:1rem;margin-right:1.5rem;margin-left:calc(48px + 1rem)}.announcement-text{color:#244b63;font-size:.95rem;line-height:1.6;margin-bottom:0;white-space:pre-wrap;word-wrap:break-word}.announcement-attachments{margin-top:1rem;padding-top:1rem;border-top:1px solid #d1d5db}.announcement-attachment-item{display:flex;align-items:center;gap:.75rem;padding:.5rem 0;color:#244b63}.announcement-attachment-item i.fa-paperclip{color:#316180;flex-shrink:0}.announcement-attachment-item span{flex:1;font-size:.9rem}.announcement-attachment-actions{display:flex;gap:.5rem;flex-shrink:0}.schedule-item-meta{display:flex;flex-direction:column;gap:.75rem}.due-date{display:flex;align-items:center;gap:.5rem;color:#244b63;font-size:.9rem}.due-date i{color:#316180}.meta-item span.overdue-badge{background:#dc2626;color:#fff;padding:.25rem .5rem;border-radius:4px;font-size:.75rem;font-weight:500;margin-left:.5rem}.attachment-info{display:flex;align-items:center;gap:.5rem;color:#316180;font-size:.9rem}.attachment-link{color:#667eea;text-decoration:none;transition:color .2s}.attachment-link:hover{color:#5a67d8;text-decoration:underline}.form-text{color:#316180;font-size:.8rem;margin-top:.25rem;display:block}.document-detail-content,.activity-detail-content{padding:1.5rem}.document-detail-meta,.activity-detail-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:1px solid #e5e7eb}.meta-item{display:flex;flex-direction:column;gap:.5rem}.meta-item label{font-weight:600;color:#244b63;font-size:.9rem;text-transform:uppercase;letter-spacing:.05em}.meta-item span{color:#183547;font-size:1rem}.document-description-section,.activity-description-section{margin-bottom:2rem}.document-description-section h3,.activity-description-section h3{color:#183547;margin-bottom:1rem;font-size:1.2rem}.document-description-section p,.activity-description-section p{color:#244b63;line-height:1.6;font-size:1rem}.document-actions-section,.activity-actions-section{display:flex;gap:1rem;flex-wrap:wrap;margin-top:2rem;padding-top:1.5rem;border-top:1px solid #e5e7eb}.activity-checklist-section,.activity-attachments-section{margin-bottom:2rem}.activity-checklist-section h3,.activity-attachments-section h3{color:#183547;margin-bottom:1rem;font-size:1.2rem}.attachments-list{display:flex;flex-direction:column;gap:1rem}.attachment-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:#f8fafc;border:1px solid #e5e7eb;border-radius:8px}.attachment-item i{color:#316180;font-size:1.2rem}.attachment-item span{flex:1;color:#183547;font-weight:500}.attachment-actions{display:flex;gap:.5rem}@media(max-width:768px){.schedule-items-grid{gap:.75rem}.schedule-item-header{flex-direction:column;gap:.75rem}.schedule-item-date{position:static;margin-bottom:.5rem;align-self:flex-end}.document-card{flex-direction:column;align-items:flex-start}.document-date{position:static;margin-bottom:.5rem;align-self:flex-end}.document-actions-section,.activity-actions-section{flex-direction:column}.attachment-item{flex-direction:column;align-items:flex-start}.attachment-actions{width:100%;justify-content:flex-start}}.submission-status{display:flex;align-items:center}.submission-badge{background:#10b981;color:#fff;padding:.5rem 1rem;border-radius:6px;font-weight:500;display:flex;align-items:center;gap:.5rem}.submission-badge i{font-size:1rem}.readiness-badge{padding:.5rem 1rem;border-radius:6px;font-weight:500;display:flex;align-items:center;gap:.5rem;font-size:.875rem}.readiness-badge.ready{background:#10b981;color:#fff}.readiness-badge.not-ready{background:#f59e0b;color:#fff}.readiness-badge i{font-size:1rem}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-content{background:#d4d4d4;border-radius:12px;box-shadow:0 10px 25px #0003;max-width:600px;width:90%;max-height:90vh;overflow-y:auto;display:flex;flex-direction:column}.modal-header{padding:1.5rem;border-bottom:1px solid #e5e7eb;display:flex;justify-content:space-between;align-items:center}.modal-header h3{margin:0;color:#183547;font-size:1.5rem}.modal-close{background:none;border:none;font-size:1.5rem;color:#6b7280;cursor:pointer;padding:0;width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:all .2s}.modal-close:hover{background:#f3f4f6;color:#183547}.modal-body{padding:1.5rem;flex:1}.modal-footer{padding:1.5rem;border-top:1px solid #e5e7eb;display:flex;justify-content:flex-end;gap:.5rem}.file-upload-area{min-height:200px;border:2px dashed #d1d5db;border-radius:8px;padding:2rem;text-align:center}.file-upload-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;color:#6b7280}.file-upload-placeholder i{font-size:3rem;color:#9ca3af}.selected-files{text-align:left}.selected-files h4{margin-bottom:1rem;color:#183547}.selected-files ul{list-style:none;padding:0;margin:0 0 1rem}.selected-files li{display:flex;align-items:center;justify-content:space-between;padding:.75rem;background:#f3f4f6;border-radius:6px;margin-bottom:.5rem;color:#244b63}.selected-files li i{margin-right:.5rem;color:#316180}.btn-icon-small{background:none;border:none;color:#dc2626;cursor:pointer;padding:.25rem .5rem;border-radius:4px;transition:all .2s}.btn-icon-small:hover{background:#fee2e2}.submissions-modal{max-width:800px}.submissions-table{margin-bottom:2rem}.submissions-table table{width:100%;border-collapse:collapse}.submissions-table th{background:#f3f4f6;padding:.75rem;text-align:left;font-weight:600;color:#183547;border-bottom:2px solid #e5e7eb}.submissions-table td{padding:.75rem;border-bottom:1px solid #e5e7eb;color:#244b63}.submission-files-list{list-style:none;padding:0;margin:0}.submission-files-list li{margin-bottom:.25rem}.file-link{color:#316180;text-decoration:none;display:flex;align-items:center;gap:.5rem;transition:color .2s}.file-link:hover{color:#183547;text-decoration:underline}.file-link i{color:#316180}.no-files{color:#9ca3af;font-style:italic}.not-submitted-section{margin-top:2rem;padding-top:1.5rem;border-top:2px solid #e5e7eb}.not-submitted-section h4{color:#183547;margin-bottom:1rem}.not-submitted-section ul{list-style:none;padding:0;margin:0}.not-submitted-section li{padding:.5rem;color:#6b7280;border-bottom:1px solid #f3f4f6}.competency-checklist-container{max-width:750px;margin:2rem auto;background:#fff;padding:1.5rem 2rem;border-radius:12px;box-shadow:0 4px 15px #00000014;font-family:Inter,sans-serif}.competency-checklist-title{font-size:1.8rem;font-weight:700;margin-bottom:1rem;text-align:center}.competency-checklist-info{text-align:center;margin-bottom:1.5rem;color:#316180}.competency-checklist-create{display:flex;gap:.6rem;margin-bottom:1.5rem}.competency-checklist-input,.competency-checklist-textarea{width:100%;padding:10px;border-radius:8px;border:1px solid #ddd;font-size:.95rem}.competency-checklist-textarea{height:90px;resize:vertical}.competency-checklist-button{background:#2563eb;color:#fff;border:none;padding:10px 16px;border-radius:8px;cursor:pointer;transition:background .2s}.competency-checklist-button:hover{background:#1e40af}.competency-checklist-button.secondary{background:#316180}.competency-checklist-button.danger{background:#dc2626}.competency-checklist-list{display:flex;flex-direction:column;gap:.7rem}.competency-checklist-item{display:flex;align-items:center;gap:.5rem}.competency-checklist-text{flex:1;padding:8px;border:1px solid #ccc;border-radius:8px}.competency-checklist-card{border:1px solid #ddd;padding:1rem;border-radius:10px;background:#f9fafb;margin-bottom:.8rem}.competency-checklist-card-title{margin:0;font-weight:600}.competency-checklist-card-actions{margin-top:.5rem;display:flex;gap:.5rem}.sync-container{max-width:1200px;margin:2rem auto;padding:2rem}.sync-container h2{text-align:center;font-size:2rem;color:#183547;margin-bottom:2rem}.sync-content{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start}.sync-instructions{display:flex;flex-direction:column;gap:2rem}.instruction-section{background:#fff;padding:1.5rem;border-radius:12px;box-shadow:0 4px 6px #0000001a}.instruction-section h3{font-size:1.3rem;color:#183547;margin-bottom:1rem;font-weight:600}.instruction-section ol{margin:0;padding-left:1.5rem;color:#244b63;line-height:1.8}.instruction-section li{margin-bottom:.5rem}.instruction-section li:last-child{margin-bottom:0}.sync-url{margin-top:1rem;padding:.75rem;background:#f3f4f6;border-radius:6px;font-family:monospace;font-size:.85rem;color:#244b63;word-break:break-all;text-align:left}.sync-qr-section{display:flex;justify-content:center;align-items:center}.qr-box{background:#dec3a6;padding:2rem;border-radius:12px;box-shadow:0 8px 16px #47331f33;display:flex;justify-content:center;align-items:center;text-decoration:none;transition:transform .2s,box-shadow .2s}.qr-box.clickable{cursor:pointer}.qr-box.clickable:hover{transform:scale(1.02);box-shadow:0 12px 24px #47331f4d}.qr-box.clickable:active{transform:scale(.98)}.sync-error{margin-top:2rem;text-align:center}.sync-error .error{background:#fee2e2;border:1px solid #fecaca;border-radius:8px;padding:1rem;color:#991b1b;text-align:left;overflow-x:auto}.sync-icon{font-size:48px;color:#3498db}.sync-done-icon{font-size:48px;color:#2ecc71}@media(max-width:968px){.sync-content{grid-template-columns:1fr;gap:2rem}.sync-qr-section{order:-1}.qr-box{padding:1.5rem}}.calendar-container{padding:2rem;max-width:1400px;margin:0 auto}.calendar-header{margin-bottom:2rem;display:flex;justify-content:space-between;align-items:center;gap:2rem}.calendar-header .header-content{flex:1}.calendar-header h1{font-size:2rem;color:#183547;display:flex;align-items:center;gap:.5rem;margin:0}.calendar-header h1 i{color:#183547}.calendar-header .header-actions{flex-shrink:0}.week-navigation{display:flex;align-items:center;justify-content:center;gap:2rem;margin-bottom:2rem;padding:1rem;background:#ac947c3c;border-radius:8px}.nav-btn{padding:.5rem 1rem;min-width:50px}.month-year-label{font-size:1.5rem;font-weight:600;color:#244b63;min-width:200px;text-align:center}.calendar-filters{display:flex;gap:3rem;margin-bottom:2rem;padding:1.5rem;background:#fff;border:1px solid #e0e0e0;border-radius:8px;flex-wrap:wrap}.filter-section{flex:1;min-width:250px}.filter-section h3{font-size:1rem;font-weight:600;margin-bottom:.75rem;color:#244b63}.filter-checkboxes{display:flex;flex-direction:column;gap:.5rem}.filter-checkbox{display:flex;align-items:center;gap:.5rem;cursor:pointer;font-size:.95rem;color:#316180}.filter-checkbox input[type=checkbox]{width:18px;height:18px;cursor:pointer}.filter-checkbox:hover{color:#4a90e2}.calendar-grid-wrapper{position:relative;margin-bottom:2rem}.calendar-loading-overlay{position:absolute;inset:0;background:#ffffffe6;display:flex;align-items:center;justify-content:center;z-index:10;border-radius:8px}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:1rem}.calendar-day{background:#fff;border:1px solid #e0e0e0;border-radius:8px;min-height:400px;display:flex;flex-direction:column;padding:.75rem}.calendar-day.today{border:2px solid #4a90e2;background:#f0f7ff}.day-header{text-align:center;margin-bottom:.75rem;padding-bottom:.75rem;border-bottom:1px solid #e0e0e0}.weekday-name{font-size:.85rem;font-weight:600;color:#316180;text-transform:uppercase;margin-bottom:.25rem}.day-number{font-size:1.5rem;font-weight:700;color:#244b63}.calendar-day.today .day-number{color:#4a90e2}.day-tasks{flex:1;display:flex;flex-direction:column;gap:.5rem;overflow-y:auto}.task-card{background:#fff;border:1px solid #d0d0d0;border-radius:6px;padding:.75rem;cursor:pointer;transition:all .2s ease;box-shadow:0 1px 3px #0000001a}.task-card:hover{border-color:#4a90e2;box-shadow:0 2px 6px #4a90e233;transform:translateY(-1px)}.task-title{font-weight:600;font-size:.9rem;color:#244b63;margin-bottom:.5rem;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-clamp:2;overflow:hidden}.task-meta{display:flex;flex-direction:column;gap:.25rem;font-size:.75rem}.task-type{color:#4a90e2;font-weight:500}.task-class{color:#316180;font-size:.7rem}.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem;color:#316180}.loading-state i{font-size:2rem;margin-bottom:1rem;color:#4a90e2}.loading-state p{font-size:1rem}@media(max-width:1200px){.calendar-grid{grid-template-columns:repeat(4,1fr)}.calendar-day{min-height:350px}}@media(max-width:768px){.calendar-container{padding:1rem}.calendar-grid{grid-template-columns:repeat(2,1fr)}.calendar-day{min-height:300px}.calendar-filters{flex-direction:column;gap:1.5rem}.week-navigation{gap:1rem}.month-year-label{font-size:1.2rem;min-width:150px}}@media(max-width:480px){.calendar-grid{grid-template-columns:1fr}.calendar-day{min-height:250px}}.information-page{min-height:calc(100vh - 80px);padding:2rem 1rem;background-color:#fbf6f1}.information-container{max-width:900px;margin:0 auto;background:#fff;border-radius:12px;padding:3rem;box-shadow:0 4px 6px #0000001a}.information-title{font-size:2.5rem;font-weight:700;color:#183547;margin-bottom:2rem;text-align:center;border-bottom:3px solid #a98158ff;padding-bottom:1rem}.information-content{line-height:1.8}.information-section{margin-bottom:3rem}.information-section h2{font-size:1.8rem;font-weight:600;color:#244b63;margin-bottom:1rem;margin-top:2rem}.information-section h2:first-of-type{margin-top:0}.information-section p{font-size:1rem;color:#316180;margin-bottom:1rem}.information-section ul,.information-section ol{margin-left:2rem;margin-bottom:1.5rem;color:#316180}.information-section li{margin-bottom:.5rem;line-height:1.6}.information-section img{max-width:100%;height:auto;border-radius:8px;margin:1.5rem 0;box-shadow:0 2px 4px #0000001a}.help-steps{display:flex;flex-direction:column;gap:2rem;margin:2rem 0}.help-step{display:flex;gap:1.5rem;align-items:flex-start;padding:1.5rem;background-color:#f8fafc;border-radius:8px;border-left:4px solid #a98158ff;transition:transform .2s,box-shadow .2s}.help-step:hover{transform:translate(5px);box-shadow:0 4px 8px #0000001a}.step-number{flex-shrink:0;width:40px;height:40px;background:#a98158;color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.2rem}.step-content{flex:1}.step-content h3{font-size:1.3rem;font-weight:600;color:#244b63;margin-bottom:.5rem}.step-content p{color:#316180;margin:0}.help-topic{margin-bottom:2rem;padding:1.5rem;background-color:#f8fafc;border-radius:8px}.help-topic h3{font-size:1.3rem;font-weight:600;color:#244b63;margin-bottom:.75rem}.help-topic p{color:#316180;margin-bottom:.5rem}.help-list{margin-left:1.5rem;margin-top:.5rem}.help-list li{margin-bottom:.75rem;color:#316180;line-height:1.6}.information-footer{margin-top:3rem;padding-top:2rem;border-top:2px solid #e5e7eb;text-align:center}.last-updated{color:#3f799e;font-size:.9rem;font-style:italic}@media(max-width:768px){.information-container{padding:2rem 1.5rem}.information-title{font-size:2rem}.information-section h2{font-size:1.5rem}.help-step{flex-direction:column;align-items:center;text-align:center}.step-number{margin-bottom:1rem}.information-section ul,.information-section ol{margin-left:1.5rem}}@media(max-width:480px){.information-page{padding:1rem .5rem}.information-container{padding:1.5rem 1rem}.information-title{font-size:1.75rem}.help-step{padding:1rem}}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;color:#244b63;background-color:#f8fafc}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.card{background:#fff;border-radius:12px;padding:2rem;box-shadow:0 4px 6px #0000001a;margin-bottom:2rem}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;text-decoration:none;transition:all .2s;justify-content:center}.btn-primary{background:#a98158;color:#fff}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 25px #6c523833}.btn-secondary{background:#ac947cd4;color:#fff}.btn-secondary:hover{background:#ac947cd4;transform:translateY(-1px)}.btn-success{background:#10b981;color:#fff}.btn-success:hover{background:#059669;transform:translateY(-1px)}.btn-danger{background:#ef4444;color:#fff}.btn-danger:hover{background:#dc2626;transform:translateY(-1px)}.form-group{margin-bottom:1.5rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;color:#244b63}.form-input{width:100%;padding:.75rem;border:2px solid #e5e7eb;border-radius:8px;font-size:1rem;transition:border-color .2s}.form-input:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea1a}.form-select{width:100%;padding:.75rem;border:2px solid #e5e7eb;border-radius:8px;font-size:1rem;background-color:#fff;cursor:pointer}.form-select:focus{outline:none;border-color:#f1ae6b;box-shadow:0 0 0 3px #667eea1a}.alert{padding:1rem;border-radius:8px;margin-bottom:1rem}.alert-success{background-color:#d1fae5;color:#065f46;border:1px solid #a7f3d0}.alert-error{background-color:#fee2e2;color:#991b1b;border:1px solid #fecaca}.alert-warning{background-color:#fef3c7;color:#92400e;border:1px solid #fde68a}.grid{display:grid;gap:2rem}.grid-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.grid-3{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.text-center{text-align:center}.text-right{text-align:right}.mb-1{margin-bottom:.25rem}.mb-2{margin-bottom:.5rem}.mb-3{margin-bottom:.75rem}.mb-4{margin-bottom:1rem}.mb-6{margin-bottom:1.5rem}.mb-8{margin-bottom:2rem}.mt-1{margin-top:.25rem}.mt-2{margin-top:.5rem}.mt-3{margin-top:.75rem}.mt-4{margin-top:1rem}.mt-6{margin-top:1.5rem}.mt-8{margin-top:2rem}.p-1{padding:.25rem}.p-2{padding:.5rem}.p-3{padding:.75rem}.p-4{padding:1rem}.p-6{padding:1.5rem}.p-8{padding:2rem}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-1{gap:.25rem}.gap-2{gap:.5rem}.gap-3{gap:.75rem}.gap-4{gap:1rem}.gap-6{gap:1.5rem}.gap-8{gap:2rem}.w-full{width:100%}.h-full{height:100%}.rounded{border-radius:8px}.rounded-lg{border-radius:12px}.shadow{box-shadow:0 4px 6px #0000001a}.shadow-lg{box-shadow:0 10px 15px #0000001a}.bg-white{background-color:#fff}.bg-gray-50{background-color:#f9fafb}.bg-gray-100{background-color:#f3f4f6}.text-gray-600{color:#316180}.text-gray-700{color:#244b63}.text-gray-900{color:#183547}.border{border:1px solid #e5e7eb}.border-gray-200{border-color:#e5e7eb}.border-gray-300{border-color:#d1d5db}.navbar{background:linear-gradient(45deg,#f1ae6b,#6ac5fe);color:#fff;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 10px #0000001a;position:sticky;top:0;z-index:100}.nav-brand{display:flex;align-items:center;gap:.5rem;font-size:1.5rem;font-weight:700;color:#fff;text-decoration:none}.nav-brand i{font-size:2rem;color:#fff}.nav-user{display:flex;align-items:center;gap:1rem}.username{font-weight:500;color:#fff}.role-badge{padding:.25rem .75rem;border-radius:20px;font-size:.8rem;font-weight:500;text-transform:uppercase}.role-badge.teacher{background-color:#2a8556;color:#fff}.role-badge.student{background-color:#185568;color:#fff}.top-bar-btn{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;padding:.5rem;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;font-size:1rem;font-weight:500;min-width:36px;height:36px}.top-bar-btn:hover{background:#fff3;transform:translateY(-1px)}.support-dropdown-container{position:relative}.support-dropdown{position:absolute;top:100%;right:0;margin-top:.5rem;background:#fff;border-radius:6px;box-shadow:0 4px 12px #00000026;min-width:150px;z-index:1000;overflow:hidden}.support-dropdown-item{width:100%;padding:.75rem 1rem;background:#fff;border:none;text-align:left;cursor:pointer;color:#183547;font-size:.875rem;transition:background .2s;display:block}.support-dropdown-item:hover{background:#f3f4f6}.language-dropdown-container{position:relative}.language-dropdown{position:absolute;top:100%;right:0;margin-top:.5rem;background:#fff;border-radius:6px;box-shadow:0 4px 12px #00000026;min-width:150px;z-index:1000;overflow:hidden}.language-dropdown-item{width:100%;padding:.75rem 1rem;background:#fff;border:none;text-align:left;cursor:pointer;color:#183547;font-size:.875rem;transition:background .2s;display:flex;align-items:center;justify-content:space-between;gap:.5rem}.language-dropdown-item:hover{background:#f3f4f6}.language-dropdown-item.active{background:#f3f4f6;font-weight:500}.language-dropdown-item.active i{color:#a98158}.main-content{min-height:calc(100vh - 80px);padding:2rem;background-color:#fbf6f1}.auth-content{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(45deg,#f1ae6b,#6ac5fe);padding:2rem}.app-loading{display:flex;justify-content:center;align-items:center;min-height:100vh;background-color:#f8fafc}.loading-spinner{text-align:center;color:#316180}.loading-spinner i{font-size:2rem;margin-bottom:1rem;color:#667eea}.loading-spinner p{font-size:1.1rem;font-weight:500}@media(max-width:768px){.container{padding:0 .5rem}.card{padding:1.5rem}.grid-2,.grid-3{grid-template-columns:1fr}.btn{width:100%}.navbar{flex-direction:column;gap:1rem;padding:1rem}.nav-user{flex-direction:column;gap:.5rem;width:100%}.logout-btn{width:100%;justify-content:center}}
