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rgba(99,102,241,.3);border-radius:8px;-webkit-user-select:none;user-select:none}._zoomIcon_1h3su_58{font-size:16px;line-height:1}._zoomPercentage_1h3su_63{min-width:45px;text-align:center;font-size:14px;font-weight:600;color:var(--modal-text)}._lightboxZoomBtn_1h3su_71,._lightboxResetBtn_1h3su_72,._lightboxCloseBtn_1h3su_73{height:36px;border-radius:8px;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:600;transition:all .3s ease}._lightboxZoomBtn_1h3su_71{width:36px;background:#3b82f61a;color:#3b82f6;border:1px solid rgba(59,130,246,.3);line-height:1}._lightboxZoomBtn_1h3su_71:hover:not(:disabled){background:#3b82f633;border-color:#3b82f6;transform:scale(1.05)}._lightboxZoomBtn_1h3su_71:disabled{opacity:.4;cursor:not-allowed}._lightboxResetBtn_1h3su_72{padding:0 16px;background:#6b72801a;color:#6b7280;border:1px solid rgba(107,114,128,.3);font-size:14px}._lightboxResetBtn_1h3su_72:hover{background:#6b728033;border-color:#6b7280;transform:scale(1.05)}._lightboxCloseBtn_1h3su_73{width:36px;background:#ef44441a;color:#ef4444;border:1px solid rgba(239,68,68,.3);font-size:24px;line-height:1}._lightboxCloseBtn_1h3su_73:hover{background:#ef444433;border-color:#ef4444;transform:scale(1.05)}._lightboxImageContainer_1h3su_135{flex:1;display:flex;overflow:auto;background:var(--content-bg);padding:20px;min-height:0;position:relative}._lightboxImageContainer_1h3su_135::-webkit-scrollbar{width:8px;height:8px}._lightboxImageContainer_1h3su_135::-webkit-scrollbar-track{background:#0000001a}._lightboxImageContainer_1h3su_135::-webkit-scrollbar-thumb{background:#0000004d;border-radius:4px}._lightboxImageContainer_1h3su_135 img{display:block;object-fit:contain;border-radius:8px;-webkit-user-select:none;user-select:none;cursor:grab;margin:auto}._lightboxImageContainer_1h3su_135 img:active{cursor:grabbing}._lightboxFooter_1h3su_173{display:flex;justify-content:center;padding:12px 16px;background:var(--modal-header-bg);border-top:1px solid var(--modal-input-border)}._lightboxDownloadBtn_1h3su_181{padding:10px 24px;background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:8px}._lightboxDownloadBtn_1h3su_181:hover{background:linear-gradient(135deg,#059669,#047857);transform:translateY(-2px);box-shadow:0 4px 12px #10b9814d}@media(max-width:767px){._lightboxModal_1h3su_17{max-width:95vw;max-height:95vh}._lightboxToolbar_1h3su_29,._lightboxFooter_1h3su_173{padding:10px 12px}._zoomControls_1h3su_40{gap:8px}._zoomDisplay_1h3su_47{padding:4px 8px;gap:4px}._zoomIcon_1h3su_58{font-size:14px}._zoomPercentage_1h3su_63{min-width:40px;font-size:12px}._lightboxZoomBtn_1h3su_71{width:32px;height:32px;font-size:18px}._lightboxCloseBtn_1h3su_73{width:32px;height:32px;font-size:20px}._lightboxResetBtn_1h3su_72{padding:0 12px;height:32px;font-size:12px}._lightboxImageContainer_1h3su_135{padding:12px}._lightboxDownloadBtn_1h3su_181{padding:8px 16px;font-size:.85rem}}._setHomeworkPage_1ai2a_1 h1{text-align:center;margin-bottom:30px;color:var(--text-primary)}._setHomeworkPage_1ai2a_1 h2{margin-bottom:20px;color:var(--text-primary);border-bottom:1px solid var(--border-color);padding-bottom:10px}._authSection_1ai2a_14{max-width:400px;margin:0 auto;padding:20px;background-color:var(--bg-secondary);border-radius:8px;box-shadow:var(--shadow-md)}._authForm_1ai2a_23{display:flex;gap:10px}._authForm_1ai2a_23 input{flex:1;padding:10px;border:1px solid var(--border-color);border-radius:4px;background:var(--bg-primary);color:var(--text-primary)}._authForm_1ai2a_23 button{padding:10px 20px;background-color:#4caf50;color:#fff;border:none;border-radius:4px;cursor:pointer;font-weight:700}._authForm_1ai2a_23 button:hover{background-color:#45a049}._contentSection_1ai2a_51{margin-top:20px}._notification_1ai2a_55{padding:15px;border-radius:4px;margin-bottom:20px;text-align:center;font-weight:700}._notification_1ai2a_55._success_1ai2a_63{background-color:#d4edda;color:#155724;border:1px solid #c3e6cb}._notification_1ai2a_55._error_1ai2a_69{background-color:#f8d7da;color:#721c24;border:1px solid #f5c6cb}._homeworkManagement_1ai2a_75{display:grid;grid-template-columns:1fr 1fr;gap:30px}@media(max-width:768px){._homeworkManagement_1ai2a_75{grid-template-columns:1fr}}._homeworkFormSection_1ai2a_87,._homeworkListSection_1ai2a_88{background-color:var(--bg-primary);border-radius:8px;padding:20px;box-shadow:var(--shadow-md)}._formGroup_1ai2a_95{margin-bottom:20px}._formGroup_1ai2a_95 label{display:block;margin-bottom:8px;font-weight:500;color:var(--text-secondary)}._formGroup_1ai2a_95 input,._formGroup_1ai2a_95 textarea{width:100%;padding:10px;border:1px solid var(--border-color);border-radius:4px;font-size:14px;background:var(--bg-primary);color:var(--text-primary)}._formGroup_1ai2a_95 textarea{resize:vertical;min-height:100px}._formGroup_1ai2a_95 small{display:block;margin-top:5px;color:var(--text-tertiary);font-size:12px}._fileInputWrapper_1ai2a_130{position:relative;margin-bottom:.5rem}._hiddenFileInput_1ai2a_135{position:absolute;opacity:0;width:0;height:0;pointer-events:none}._selectFileBtn_1ai2a_143{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;border:none;border-radius:8px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #6366f14d}._selectFileBtn_1ai2a_143:hover{transform:translateY(-2px);box-shadow:0 6px 16px #6366f166;background:linear-gradient(135deg,#4f46e5,#4338ca)}._selectFileBtn_1ai2a_143:active{transform:translateY(0)}._formButtons_1ai2a_169{display:flex;gap:10px;margin-top:20px}._btnSubmit_1ai2a_175{padding:10px 20px;background-color:#4caf50;color:#fff;border:none;border-radius:4px;cursor:pointer;font-weight:700}._btnSubmit_1ai2a_175:hover{background-color:#45a049}._btnSubmit_1ai2a_175:disabled{background-color:#ccc;cursor:not-allowed}._btnCancel_1ai2a_194{padding:10px 20px;background-color:#6c757d;color:#fff;border:none;border-radius:4px;cursor:pointer;font-weight:700}._btnCancel_1ai2a_194:hover{background-color:#5a6268}._errorMessage_1ai2a_208{color:#721c24;font-style:italic}._homeworkList_1ai2a_88{max-height:600px;overflow-y:auto}._subjectCard_1ai2a_218{margin-bottom:20px;border:1px solid var(--border-color);border-radius:8px;padding:15px;background:var(--bg-secondary)}._subjectCard_1ai2a_218 h3{margin:0 0 15px;color:var(--text-primary);border-bottom:1px solid var(--border-color);padding-bottom:8px}._subjectCard_1ai2a_218 ul{list-style:none;padding:0;margin:0}._assignmentItem_1ai2a_239{padding:10px;margin-bottom:10px;background-color:var(--bg-primary);border-radius:6px;border:1px solid var(--border-color)}._assignmentHeader_1ai2a_247{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}._assignmentTitle_1ai2a_254{font-weight:700;color:var(--text-primary)}._assignmentDue_1ai2a_259{font-size:12px;color:var(--text-tertiary)}._assignmentDesc_1ai2a_264{margin:8px 0;color:var(--text-secondary);font-size:14px}._assignmentFiles_1ai2a_270{margin:8px 0;font-size:12px;color:var(--text-tertiary)}._assignmentActions_1ai2a_276{display:flex;gap:8px;margin-top:10px}._btnEdit_1ai2a_282{padding:5px 12px;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:12px}._btnEdit_1ai2a_282:hover{background-color:#0056b3}._btnDelete_1ai2a_296{padding:5px 12px;background-color:#dc3545;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:12px}._btnDelete_1ai2a_296:hover{background-color:#c82333}._filesList_1ai2a_310{margin-top:10px}._fileItem_1ai2a_314{display:flex;justify-content:space-between;align-items:center;padding:8px;margin-bottom:5px;background-color:var(--bg-secondary);border-radius:4px;border:1px solid var(--border-color)}._fileItem_1ai2a_314 span{flex:1;font-size:14px;color:var(--text-primary)}._markedForRemoval_1ai2a_331{text-decoration:line-through;color:var(--text-tertiary);opacity:.6}._btnRemove_1ai2a_337{padding:4px 8px;background-color:#dc3545;color:#fff;border:none;border-radius:3px;cursor:pointer;font-size:11px}._btnRemove_1ai2a_337:hover{background-color:#c82333}._btnRestore_1ai2a_351{padding:4px 8px;background-color:#28a745;color:#fff;border:none;border-radius:3px;cursor:pointer;font-size:11px}._btnRestore_1ai2a_351:hover{background-color:#218838}._icpFooter_1ai2a_366{text-align:center;padding:1rem 0;margin-top:1rem;border-top:1px solid var(--border-color);background:var(--bg-secondary)}._icpLink_1ai2a_374{color:var(--text-tertiary);text-decoration:none;font-size:.8rem;transition:all .3s ease;opacity:.8}._icpLink_1ai2a_374:hover{color:#6366f1;opacity:1;text-decoration:underline}._markdownToolbar_1ai2a_389{display:flex;gap:.5rem;padding:.75rem;background:var(--bg-secondary);border:1px solid var(--border-color);border-bottom:none;border-radius:8px 8px 0 0;flex-wrap:wrap;align-items:center}._markdownToolbar_1ai2a_389 button{padding:.5rem .75rem;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:6px;cursor:pointer;font-size:.9rem;font-weight:600;transition:all .3s ease;color:var(--text-primary)}._markdownToolbar_1ai2a_389 button:hover{background:#6366f1;color:#fff;transform:translateY(-2px);box-shadow:0 4px 12px #6366f14d}._toolbarDivider_1ai2a_420{width:1px;height:24px;background:var(--border-color);margin:0 .5rem}._previewBtn_1ai2a_427{margin-left:auto;background:linear-gradient(135deg,#10b981,#059669)!important;color:#fff!important;border:none!important}._markdownPreview_1ai2a_434{min-height:300px;padding:1rem;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:0 0 8px 8px;color:var(--text-primary)}._formGroup_1ai2a_95 textarea{border-radius:0 0 8px 8px;border-top:none}._uploadedFiles_1ai2a_448{margin-top:1rem;padding:1rem;background:var(--bg-secondary);border-radius:8px}._uploadedFiles_1ai2a_448 h4{margin:0 0 .75rem;color:var(--text-primary);font-size:.9rem}._uploadedFileItem_1ai2a_461{display:flex;justify-content:space-between;align-items:center;padding:.75rem;background:var(--bg-primary);border-radius:6px;margin-bottom:.5rem;border:1px solid var(--border-color)}._uploadedFileItem_1ai2a_461 span{flex:1;font-size:.9rem;color:var(--text-primary)}._btnInsert_1ai2a_478{padding:.4rem .8rem;background:linear-gradient(135deg,#6366f1,#4f46e5);color:#fff;border:none;border-radius:4px;font-size:.8rem;font-weight:600;cursor:pointer;transition:all .3s ease}._btnInsert_1ai2a_478:hover{transform:translateY(-2px);box-shadow:0 4px 12px #6366f14d}._aiBtn_1ai2a_496{background:linear-gradient(135deg,#f59e0b,#d97706)!important;color:#fff!important;border:none!important;padding:.5rem 1rem!important;font-weight:600!important}._aiBtn_1ai2a_496:hover{background:linear-gradient(135deg,#d97706,#b45309)!important}._aiDialogOverlay_1ai2a_509{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}._aiDialog_1ai2a_509{background:var(--bg-primary);border-radius:12px;width:90%;max-width:800px;max-height:90vh;overflow:hidden;box-shadow:0 20px 60px #0000004d;display:flex;flex-direction:column}._aiDialogHeader_1ai2a_537{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;border-bottom:1px solid var(--border-color);background:var(--bg-secondary)}._aiDialogHeader_1ai2a_537 h3{margin:0;color:var(--text-primary);font-size:1.25rem}._closeBtn_1ai2a_552{background:none;border:none;font-size:2rem;cursor:pointer;color:var(--text-tertiary);width:2.5rem;height:2.5rem;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .3s ease}._closeBtn_1ai2a_552:hover{background:var(--bg-primary);color:var(--text-primary);transform:rotate(90deg)}._aiDialogBody_1ai2a_574{padding:1.5rem;overflow-y:auto;flex:1}._aiPromptSection_1ai2a_581{margin-bottom:2rem}._aiPromptSection_1ai2a_581 h4{margin:0 0 1rem;color:var(--text-primary);font-size:1rem}._aiPromptInput_1ai2a_591{width:100%;padding:1rem;border:1px solid var(--border-color);border-radius:8px;font-size:.95rem;font-family:inherit;resize:vertical;background:var(--bg-primary);color:var(--text-primary);line-height:1.6}._aiPromptInput_1ai2a_591:focus{outline:none;border-color:#f59e0b;box-shadow:0 0 0 3px #f59e0b1a}._aiActions_1ai2a_611{margin-top:1rem;display:flex;justify-content:flex-end}._btnGenerate_1ai2a_617{padding:.75rem 1.5rem;background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #f59e0b4d}._btnGenerate_1ai2a_617:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 16px #f59e0b66;background:linear-gradient(135deg,#d97706,#b45309)}._btnGenerate_1ai2a_617:disabled{opacity:.5;cursor:not-allowed;transform:none}._aiPreviewSection_1ai2a_643{margin-top:2rem;padding-top:2rem;border-top:1px solid var(--border-color)}._aiPreviewSection_1ai2a_643 h4{margin:0 0 1rem;color:var(--text-primary);font-size:1rem}._aiPreview_1ai2a_643{padding:1.5rem;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:8px;max-height:400px;overflow-y:auto;margin-bottom:1rem}._aiPreviewActions_1ai2a_666{display:flex;gap:1rem;justify-content:flex-end}._btnApply_1ai2a_672{padding:.75rem 1.5rem;background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 12px #10b9814d}._btnApply_1ai2a_672:hover{transform:translateY(-2px);box-shadow:0 6px 16px #10b98166;background:linear-gradient(135deg,#059669,#047857)}._btnDiscard_1ai2a_691{padding:.75rem 1.5rem;background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border-color);border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}._btnDiscard_1ai2a_691:hover{background:var(--bg-primary);border-color:#dc3545;color:#dc3545}@media(max-width:768px){._aiDialog_1ai2a_509{width:95%;max-height:95vh}._aiDialogHeader_1ai2a_537,._aiDialogBody_1ai2a_574{padding:1rem}._aiPreviewActions_1ai2a_666{flex-direction:column}._btnApply_1ai2a_672,._btnDiscard_1ai2a_691{width:100%}}