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#e2e8f0;color:#64748b}._disclaimerDark_1i5tc_488{background-color:#33415580;border:1px solid #475569;color:#94a3b8}._disclaimerIcon_1i5tc_494{flex-shrink:0;font-size:.875rem;font-style:normal}._disclaimerText_1i5tc_500{flex:1}._markdownContent_1i5tc_386 .katex{font-size:1.1em}._markdownContent_1i5tc_386 .katex-display{margin:1em 0;text-align:center;overflow-x:auto;overflow-y:hidden}._markdownContentDark_1i5tc_415 .katex{color:#f1f5f9}._markdownContentDark_1i5tc_415 .katex .mord.text{color:#f1f5f9!important}._markdownContentDark_1i5tc_415 .katex .mrel,._markdownContentDark_1i5tc_415 .katex .mbin,._markdownContentDark_1i5tc_415 .katex .mop{color:#f1f5f9}._markdownContentLight_1i5tc_411 .katex{color:#0f172a}._markdownContentLight_1i5tc_411 .katex .mord.text{color:#0f172a!important}@media(max-width:640px){._markdownContent_1i5tc_386 .katex{font-size:1em}._markdownContent_1i5tc_386 .katex-display{font-size:.95em}}._errorContainer_1i5tc_552{display:flex;align-items:center;gap:8px;padding:12px 16px;border-radius:8px;margin-bottom:12px;font-size:14px}._errorLight_1i5tc_562{background-color:#fff3cd;color:#856404;border:1px solid #ffeeba}._errorDark_1i5tc_568{background-color:#3d3d00;color:#ffc107;border:1px solid #665d1e}._errorIcon_1i5tc_574{font-size:16px}._suggestedVideos_1i5tc_578{margin-top:12px;padding-top:12px;border-top:1px solid rgba(128,128,128,.2)}._suggestedVideosLabel_1i5tc_584{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-bottom:8px}._suggestedVideosLabelLight_1i5tc_592{color:#6b7280}._suggestedVideosLabelDark_1i5tc_596{color:#9ca3af}._suggestedVideosList_1i5tc_600{display:flex;flex-direction:column;gap:6px}._suggestedVideoCard_1i5tc_606{display:flex;align-items:center;gap:10px;padding:8px;border-radius:8px;border:1px solid;cursor:pointer;transition:all .15s ease;text-align:left;width:100%;font-family:inherit}._suggestedVideoCardLight_1i5tc_620{background:#f9fafb;border-color:#e5e7eb}._suggestedVideoCardLight_1i5tc_620:hover{background:#f3f4f6;border-color:#d1d5db}._suggestedVideoCardDark_1i5tc_630{background:#ffffff0d;border-color:#ffffff1a}._suggestedVideoCardDark_1i5tc_630:hover{background:#ffffff14;border-color:#fff3}._suggestedVideoThumb_1i5tc_640{width:56px;height:42px;border-radius:4px;object-fit:cover;flex-shrink:0}._suggestedVideoThumbPlaceholder_1i5tc_648{width:56px;height:42px;border-radius:4px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px}._suggestedVideoThumbPlaceholderLight_1i5tc_659{background:#e5e7eb;color:#6b7280}._suggestedVideoThumbPlaceholderDark_1i5tc_664{background:#ffffff1a;color:#9ca3af}._suggestedVideoInfo_1i5tc_669{flex:1;min-width:0;overflow:hidden}._suggestedVideoTitle_1i5tc_675{font-size:.8125rem;font-weight:500;line-height:1.3;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}._suggestedVideoTitleLight_1i5tc_684{color:#111827}._suggestedVideoTitleDark_1i5tc_688{color:#f3f4f6}._suggestedVideoDesc_1i5tc_692{font-size:.6875rem;line-height:1.3;margin-top:2px}._suggestedVideoDescLight_1i5tc_698{color:#6b7280}._suggestedVideoDescDark_1i5tc_702{color:#9ca3af}._svgContainer_y5e6b_1,._mermaidContainer_y5e6b_2,._vegaContainer_y5e6b_3{display:flex;justify-content:center;align-items:center;padding:16px;border-radius:8px;margin-bottom:12px;overflow:auto;max-width:100%}._svgContainer_y5e6b_1 svg,._mermaidContainer_y5e6b_2 svg{max-width:100%;height:auto;overflow:visible}._svgLight_y5e6b_23,._mermaidLight_y5e6b_24,._vegaLight_y5e6b_25{background-color:#f8f9fa;border:1px solid #e9ecef}._svgDark_y5e6b_30,._mermaidDark_y5e6b_31,._vegaDark_y5e6b_32{background-color:#1e1e1e;border:1px solid #333}._mermaidLight_y5e6b_24 svg{background-color:transparent}._mermaidDark_y5e6b_31 svg{background-color:transparent}._errorContainer_y5e6b_45{display:flex;align-items:center;gap:8px;padding:12px 16px;border-radius:8px;margin-bottom:12px;font-size:14px}._errorLight_y5e6b_55{background-color:#fff3cd;color:#856404;border:1px solid #ffeeba}._errorDark_y5e6b_61{background-color:#3d3d00;color:#ffc107;border:1px solid #665d1e}._errorIcon_y5e6b_67{font-size:16px}@media(max-width:768px){._svgContainer_y5e6b_1,._mermaidContainer_y5e6b_2,._vegaContainer_y5e6b_3{touch-action:pan-y pinch-zoom;padding:8px;transform:translateZ(0);will-change:auto;-webkit-overflow-scrolling:touch}._svgContainer_y5e6b_1 svg,._mermaidContainer_y5e6b_2 svg{max-height:400px;width:auto}._svgContainer_y5e6b_1 text,._mermaidContainer_y5e6b_2 text{font-size:12px!important}}._svgContainer_y5e6b_1,._mermaidContainer_y5e6b_2,._vegaContainer_y5e6b_3{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}._keyboard_xtma9_3{border-radius:12px;padding:12px;margin-top:8px;animation:_slideIn_xtma9_1 .2s ease-out}._keyboardLight_xtma9_10{background-color:#fff;border:1px solid #e2e8f0;box-shadow:0 4px 12px #00000014}._keyboardDark_xtma9_16{background-color:#1e293b;border:1px solid #334155;box-shadow:0 4px 12px #0000004d}._tabs_xtma9_23{display:flex;gap:4px;margin-bottom:12px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}._tabs_xtma9_23::-webkit-scrollbar{display:none}._tab_xtma9_23{flex-shrink:0;padding:8px 16px;border:none;border-radius:8px;font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s;white-space:nowrap}._tabLight_xtma9_48{background-color:#f1f5f9;color:#64748b}._tabLight_xtma9_48:hover{background-color:#e2e8f0;color:#334155}._tabDark_xtma9_58{background-color:#334155;color:#94a3b8}._tabDark_xtma9_58:hover{background-color:#475569;color:#cbd5e1}._tabActive_xtma9_68{font-weight:600}._tabActiveLight_xtma9_72{background-color:#0d9488;color:#fff}._tabActiveLight_xtma9_72:hover{background-color:#0f766e}._tabActiveDark_xtma9_81{background-color:#2dd4bf;color:#0f172a}._tabActiveDark_xtma9_81:hover{background-color:#5eead4}._closeButton_xtma9_90{margin-left:auto;flex-shrink:0;width:32px;height:32px;border:none;border-radius:6px;font-size:1.5rem;line-height:1;cursor:pointer;transition:all .2s;display:flex;align-items:center;justify-content:center}._closeButtonLight_xtma9_106{background-color:#f1f5f9;color:#64748b}._closeButtonLight_xtma9_106:hover{background-color:#e2e8f0;color:#334155}._closeButtonDark_xtma9_116{background-color:#334155;color:#94a3b8}._closeButtonDark_xtma9_116:hover{background-color:#475569;color:#cbd5e1}._symbolGrid_xtma9_127{display:grid;grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:6px}._symbolButton_xtma9_133{aspect-ratio:1;min-height:44px;border:none;border-radius:8px;font-size:1.25rem;cursor:pointer;transition:all .15s;display:flex;align-items:center;justify-content:center;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}._symbolButtonLight_xtma9_148{background-color:#f8fafc;border:1px solid #e2e8f0;color:#0f172a}._symbolButtonLight_xtma9_148:hover{background-color:#e2e8f0;border-color:#cbd5e1;transform:translateY(-1px)}._symbolButtonLight_xtma9_148:active{background-color:#cbd5e1;transform:translateY(0)}._symbolButtonDark_xtma9_165{background-color:#334155;border:1px solid #475569;color:#f1f5f9}._symbolButtonDark_xtma9_165:hover{background-color:#475569;border-color:#64748b;transform:translateY(-1px)}._symbolButtonDark_xtma9_165:active{background-color:#64748b;transform:translateY(0)}@keyframes _slideIn_xtma9_1{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@media(max-width:768px){._keyboard_xtma9_3{padding:10px;margin-top:6px}._tabs_xtma9_23{gap:3px;margin-bottom:10px}._tab_xtma9_23{padding:6px 12px;font-size:.8125rem}._closeButton_xtma9_90{width:28px;height:28px;font-size:1.25rem}._symbolGrid_xtma9_127{grid-template-columns:repeat(auto-fill,minmax(40px,1fr));gap:5px}._symbolButton_xtma9_133{min-height:40px;font-size:1.125rem}}@media(min-width:769px)and (max-width:1024px){._symbolGrid_xtma9_127{grid-template-columns:repeat(auto-fill,minmax(48px,1fr));gap:7px}._symbolButton_xtma9_133{min-height:48px;font-size:1.375rem}}@media(min-width:1025px){._symbolGrid_xtma9_127{grid-template-columns:repeat(auto-fill,minmax(50px,1fr));gap:8px}._symbolButton_xtma9_133{min-height:50px;font-size:1.5rem}}._tab_xtma9_23:focus-visible,._symbolButton_xtma9_133:focus-visible,._closeButton_xtma9_90:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}@media(prefers-contrast:high){._symbolButtonLight_xtma9_148,._symbolButtonDark_xtma9_165{border-width:2px}}._container_1panl_1{border-top:1px solid var(--color-border);padding:12px 16px;padding-bottom:max(12px,env(safe-area-inset-bottom));backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);flex-shrink:0}._containerLight_1panl_10{background-color:#fffffff2;box-shadow:0 -4px 20px #0000000d;border-color:#e2e8f0}._containerDark_1panl_16{background-color:#1e293bf2;box-shadow:0 -4px 20px #0003;border-color:#334155}._previewContainer_1panl_22{margin-bottom:12px;padding:10px 12px;border-radius:10px;display:flex;align-items:center;gap:10px}._previewContainerLight_1panl_31{background-color:#fff;border:1px solid #e2e8f0}._previewContainerDark_1panl_36{background-color:#1e293b;border:1px solid #334155}._previewImage_1panl_41{width:44px;height:44px;object-fit:cover;border-radius:8px}._previewFileName_1panl_48{flex:1;font-size:.875rem}._previewFileNameLight_1panl_53{color:#334155}._previewFileNameDark_1panl_57{color:#e2e8f0}._documentIcon_1panl_61{width:44px;height:44px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:1.25rem}._documentIconLight_1panl_71{background-color:#f1f5f9}._documentIconDark_1panl_75{background-color:#334155}._removeButton_1panl_79{background:none;border:none;cursor:pointer;font-size:1.125rem;padding:4px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:background-color .2s}._removeButtonLight_1panl_92{color:#64748b}._removeButtonLight_1panl_92:hover{background-color:#f1f5f9}._removeButtonDark_1panl_100{color:#94a3b8}._removeButtonDark_1panl_100:hover{background-color:#334155}._recordingIndicator_1panl_108{margin-bottom:12px;padding:10px 14px;border-radius:10px;display:flex;align-items:center;gap:10px}._recordingIndicatorRecording_1panl_117{background-color:#ef44441a;border:1px solid #ef4444}._recordingIndicatorTranscribing_1panl_122{background-color:#0d94881a}._recordingIndicatorTranscribingLight_1panl_126{border:1px solid #0d9488}._recordingIndicatorTranscribingDark_1panl_130{border:1px solid #2dd4bf}._recordingIcon_1panl_134{font-size:1.125rem}._recordingText_1panl_138{font-size:.875rem;font-weight:500}._recordingTextRecording_1panl_143{color:#ef4444}._recordingTextTranscribingLight_1panl_147{color:#0d9488}._recordingTextTranscribingDark_1panl_151{color:#2dd4bf}._hiddenInput_1panl_155{display:none}._actionButtonsRow_1panl_159{display:flex;align-items:center;gap:4px;margin-bottom:8px}._actionButton_1panl_159{background:none;cursor:pointer;font-size:1.25rem;width:40px;height:40px;display:flex;align-items:center;justify-content:center;transition:all .2s;border-radius:8px;flex-shrink:0}._actionButtonLight_1panl_180{border:1px solid #cbd5e1;color:#64748b}._actionButtonDark_1panl_185{border:1px solid #475569;color:#94a3b8}._actionButtonDisabled_1panl_190{cursor:not-allowed;opacity:.5}._actionButtonLight_1panl_180:not(._actionButtonDisabled_1panl_190):hover{background-color:#f1f5f9}._actionButtonDark_1panl_185:not(._actionButtonDisabled_1panl_190):hover{background-color:#334155}._recordButtonRecording_1panl_207{background:#ef4444;color:#fff;animation:_pulse-recording_1panl_1 1.5s ease-in-out infinite}._actionDivider_1panl_213{color:#cbd5e1;font-size:1.25rem;font-weight:300;padding:0 4px;-webkit-user-select:none;user-select:none}._practiceButton_1panl_221{background:#2563eb!important;color:#fff!important;border:none!important}._practiceButton_1panl_221:hover{background:#1d4ed8!important}._exploreButton_1panl_231{background:#7c3aed!important;color:#fff!important;border:none!important}._exploreButton_1panl_231:hover{background:#6d28d9!important}._progressButton_1panl_241{width:auto!important;padding:0 10px!important;gap:4px;font-size:.75rem!important;font-weight:600}._progressButtonLight_1panl_249{background:#fff!important;border:1px solid #e5e7eb!important;color:#374151!important}._progressButtonLight_1panl_249:hover{background:#f9fafb!important}._progressButtonDark_1panl_259{background:#1f2937!important;border:1px solid #4b5563!important;color:#fff!important}._progressButtonDark_1panl_259:hover{background:#374151!important}._levelBadge_1panl_269{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;background-color:#2563eb;color:#fff;border-radius:50%;font-size:.625rem;font-weight:700}._xpText_1panl_282{font-size:.6875rem}._streakIcon_1panl_286{font-size:.75rem}._inputContainer_1panl_290{display:flex;align-items:center;gap:10px;border-radius:24px;padding:8px 12px;transition:border-color .2s,box-shadow .2s}._inputContainerLight_1panl_299{background-color:#fff;border:1px solid #e2e8f0}._inputContainerDark_1panl_304{background-color:#1e293b;border:1px solid #334155}._textInput_1panl_309{flex:1;background:none;border:none;outline:none;font-size:.9375rem;font-family:inherit;padding:8px 0}._textInputLight_1panl_319{color:#0f172a}._textInputDark_1panl_323{color:#f1f5f9}._sendButton_1panl_327{border:none;border-radius:50%;cursor:pointer;font-size:1rem;width:40px;height:40px;display:flex;align-items:center;justify-content:center;transition:all .2s;flex-shrink:0}._sendButtonEnabled_1panl_341{color:#fff}._sendButtonDisabled_1panl_345{cursor:not-allowed}._sendButtonDisabledLight_1panl_349{background:#e2e8f0;color:#94a3b8}._sendButtonDisabledDark_1panl_354{background:#334155;color:#64748b}@keyframes _pulse-recording_1panl_1{0%,to{transform:scale(1);box-shadow:0 0 #ef444466}50%{transform:scale(1.05);box-shadow:0 0 0 8px #ef444400}}@media(max-width:768px){._container_1panl_1{padding:8px 12px;padding-bottom:max(8px,env(safe-area-inset-bottom))}._actionButtonsRow_1panl_159{gap:2px;margin-bottom:6px;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;-ms-overflow-style:none}._actionButtonsRow_1panl_159::-webkit-scrollbar{display:none}._actionButton_1panl_159{width:36px;height:36px;font-size:1.125rem;border-radius:6px}._actionDivider_1panl_213{padding:0 2px;font-size:1rem}._progressButton_1panl_241{padding:0 6px!important;min-width:auto}._levelBadge_1panl_269{width:16px;height:16px;font-size:.5625rem}._xpText_1panl_282,._streakIcon_1panl_286{font-size:.625rem}._inputContainer_1panl_290{padding:6px 10px;gap:8px}._textInput_1panl_309{font-size:.875rem;padding:6px 0}._sendButton_1panl_327{width:36px;height:36px;font-size:.9rem}}._container_161d7_1{border:1px solid var(--border-color, #e0e0e0)}._textLight_161d7_5{color:#fff}._textDark_161d7_9{color:#1a1a1a}._input_161d7_13{border:1px solid #d0d0d0;font-size:1rem;outline:none;transition:border-color .2s ease}._input_161d7_13:focus{border-color:#6366f1}._inputDark_161d7_24{background-color:#2d2d2d;color:#fff;border-color:#404040}._inputLight_161d7_30{background-color:#fff;color:#1a1a1a;border-color:#d0d0d0}._textarea_161d7_36{border:1px solid #d0d0d0;font-size:1rem;font-family:inherit;outline:none;transition:border-color .2s ease}._textarea_161d7_36:focus{border-color:#6366f1}._textareaDark_161d7_48{background-color:#2d2d2d;color:#fff;border-color:#404040}._textareaLight_161d7_54{background-color:#fff;color:#1a1a1a;border-color:#d0d0d0}._difficultyButton_161d7_60{border:1px solid #d0d0d0;cursor:pointer;font-weight:500;transition:all .2s ease}._difficultyButton_161d7_60:hover{border-color:#6366f1}._difficultyDark_161d7_71{background-color:#2d2d2d;color:#e0e0e0;border-color:#404040}._difficultyLight_161d7_77{background-color:#fff;color:#1a1a1a;border-color:#d0d0d0}._difficultyActive_161d7_83{background-color:#6366f1!important;color:#fff!important;border-color:#6366f1!important}._hint_161d7_89{border-left:3px solid #f59e0b}._hintDark_161d7_93,._hintLight_161d7_97{background-color:#f59e0b1a}._feedback_161d7_101{border-left:4px solid}._feedbackCorrect_161d7_105{background-color:#22c55e1a;border-color:#22c55e}._feedbackIncorrect_161d7_110{background-color:#ef44441a;border-color:#ef4444}._error_161d7_115{padding:.75rem;background-color:#ef44441a;border-radius:.5rem;border-left:4px solid #ef4444}._chatContainer_z6oby_1{display:flex;flex-direction:column;height:100%;background-color:var(--bg-primary);overflow:hidden}._chatLayout_z6oby_13{display:flex;flex:1;min-height:0;overflow:hidden}._sidebar_z6oby_20{width:320px;background-color:var(--bg-sidebar);border-right:1px solid var(--border-color);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden}._sidebarHeader_z6oby_30{padding:20px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}._sidebarTitle_z6oby_38{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0;display:flex;align-items:center;gap:8px}._filterButton_z6oby_48{display:none;background:none;border:none;padding:8px;cursor:pointer;color:var(--text-secondary);border-radius:8px;transition:all .2s}@media(max-width:768px){._filterButton_z6oby_48{display:block}}._filterButton_z6oby_48:hover{background-color:var(--bg-hover);color:var(--text-primary)}._searchContainer_z6oby_70{padding:12px 16px;border-bottom:1px solid var(--border-color)}._searchInput_z6oby_75{width:100%;padding:10px 16px;border:1px solid var(--border-color);border-radius:24px;background-color:var(--bg-input);color:var(--text-primary);font-size:.875rem;outline:none;transition:border-color .2s,box-shadow .2s}._searchInput_z6oby_75::placeholder{color:var(--text-muted)}._searchInput_z6oby_75:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}._subjectTabs_z6oby_96{display:flex;flex-wrap:wrap;gap:8px;padding:12px 16px;border-bottom:1px solid var(--border-color)}._subjectTabs_z6oby_96::-webkit-scrollbar{display:none}._subjectTab_z6oby_96{padding:6px 14px;border-radius:20px;border:none;background-color:var(--bg-tab);color:var(--text-secondary);font-size:.8125rem;font-weight:500;cursor:pointer;white-space:nowrap;transition:all .2s}._subjectTab_z6oby_96:hover{background-color:var(--bg-tab-hover);color:var(--text-primary)}._subjectTabActive_z6oby_126{background-color:var(--color-primary);color:#fff}._subjectTabActive_z6oby_126:hover{background-color:var(--color-primary-dark);color:#fff}._newChatButton_z6oby_136{display:flex;align-items:center;justify-content:center;gap:8px;margin:12px 16px;padding:12px 20px;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;border:none;border-radius:12px;font-size:.9375rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}._newChatButton_z6oby_136:hover{transform:translateY(-1px);box-shadow:0 4px 12px var(--color-primary-shadow)}._newChatButton_z6oby_136:active{transform:translateY(0)}._newChatButton_z6oby_136:disabled{opacity:.6;cursor:not-allowed;transform:none}._conversationsList_z6oby_168{flex:1;overflow-y:auto;padding:8px}._conversationItem_z6oby_174{display:flex;align-items:flex-start;gap:12px;padding:12px;border-radius:12px;cursor:pointer;transition:background-color .15s;margin-bottom:4px}._conversationItem_z6oby_174:hover{background-color:var(--bg-hover)}._conversationItemActive_z6oby_189,._conversationItemActive_z6oby_189:hover{background-color:var(--bg-active)}._conversationAvatar_z6oby_197{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.25rem;flex-shrink:0}._conversationContent_z6oby_208{flex:1;min-width:0}._conversationHeader_z6oby_213{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}._conversationTitle_z6oby_220{font-size:.9375rem;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}._conversationTime_z6oby_229{font-size:.75rem;color:var(--text-muted);flex-shrink:0;margin-left:8px}._conversationPreview_z6oby_236{font-size:.8125rem;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:6px}._conversationMeta_z6oby_245{display:flex;align-items:center;gap:6px}._subjectBadge_z6oby_251{padding:2px 8px;border-radius:12px;font-size:.6875rem;font-weight:600;text-transform:capitalize}._activeIndicator_z6oby_259{width:8px;height:8px;border-radius:50%;background-color:var(--color-success)}._mainContent_z6oby_266{flex:1;display:flex;flex-direction:column;min-width:0;background-color:var(--bg-chat);background-image:var(--chat-gradient);background-size:400% 400%;animation:_chatGradientShift_z6oby_1 20s ease infinite;overflow-y:auto}@keyframes _chatGradientShift_z6oby_1{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}@media(prefers-reduced-motion:reduce){._mainContent_z6oby_266{animation:none;background-size:100% 100%}}@media(max-width:768px){._mainContent_z6oby_266{animation:none;background-size:100% 100%}}._chatHeader_z6oby_298{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border-color);background-color:var(--bg-surface)}._chatHeaderLeft_z6oby_307{display:flex;align-items:center;gap:12px}._chatHeaderAvatar_z6oby_313{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem}._chatHeaderInfo_z6oby_323{display:flex;flex-direction:column}._chatHeaderTitle_z6oby_328{font-size:1rem;font-weight:600;color:var(--text-primary);margin:0}._chatHeaderSubtitle_z6oby_335{font-size:.8125rem;color:var(--text-secondary);display:flex;align-items:center;gap:6px}._typingDot_z6oby_343{display:inline-block;width:6px;height:6px;border-radius:50%;background-color:var(--color-success);margin-right:4px}._chatHeaderActions_z6oby_352{display:flex;align-items:center;gap:8px}._headerButton_z6oby_358{background:none;border:none;padding:8px;cursor:pointer;color:var(--text-secondary);border-radius:8px;font-size:1.125rem;transition:all .2s}._headerButton_z6oby_358:hover{background-color:var(--bg-hover);color:var(--text-primary)}._backButton_z6oby_374{background:none;border:none;padding:8px 12px;cursor:pointer;color:var(--text-primary);border-radius:8px;font-size:1.5rem;font-weight:500;transition:all .2s;display:flex;align-items:center;justify-content:center;margin-right:8px}._backButton_z6oby_374:hover{background-color:var(--bg-hover);color:var(--color-primary)}._messagesContainer_z6oby_395{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column}._dateTimestamp_z6oby_403{text-align:center;margin:20px 0;font-size:.75rem;color:var(--text-muted);font-weight:500}._messageWrapper_z6oby_411{display:flex;margin-bottom:16px;animation:_messageSlide_z6oby_1 .3s ease-out}@keyframes _messageSlide_z6oby_1{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}._messageWrapperUser_z6oby_428{justify-content:flex-end}._messageWrapperAssistant_z6oby_432{justify-content:flex-start}._messageGroup_z6oby_436{display:flex;gap:12px;max-width:70%}._messageAvatar_z6oby_442{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1rem;flex-shrink:0;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff}._messageContent_z6oby_455{display:flex;flex-direction:column}._messageBubble_z6oby_460{padding:12px 16px;border-radius:18px;font-size:.9375rem;line-height:1.5;word-wrap:break-word}._messageBubbleUser_z6oby_468{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;border-bottom-right-radius:4px}._messageBubbleAssistant_z6oby_474{background-color:var(--bg-message-assistant);color:var(--text-primary);border-bottom-left-radius:4px;border:1px solid var(--border-color)}._messageCard_z6oby_481{background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:12px;padding:16px;margin-top:8px}._messageCardHeader_z6oby_489{font-weight:600;margin-bottom:12px;color:var(--text-primary)}._messageCardContent_z6oby_495{font-size:.875rem;line-height:1.6;color:var(--text-secondary)}._messageCardContent_z6oby_495 code{background-color:var(--bg-code);padding:2px 6px;border-radius:4px;font-family:Monaco,Menlo,monospace;font-size:.8125rem}._messageTime_z6oby_509{font-size:.6875rem;color:var(--text-muted);margin-top:4px;padding-left:4px}._typingIndicator_z6oby_516{display:flex;align-items:center;gap:8px;padding:4px 0}._typingAvatar_z6oby_523{width:72px;height:72px;border-radius:50%;flex-shrink:0;object-fit:cover}._typingBubble_z6oby_531{background-color:var(--bg-message-assistant);border:1px solid var(--border-color);padding:16px 20px;border-radius:18px 18px 18px 4px;display:flex;gap:6px}._typingDotAnim_z6oby_541{width:8px;height:8px;border-radius:50%;background-color:var(--text-muted);animation:_typingBounce_z6oby_1 1.4s ease-in-out infinite}._typingDotAnim_z6oby_541:nth-child(1){animation-delay:0s}._typingDotAnim_z6oby_541:nth-child(2){animation-delay:.2s}._typingDotAnim_z6oby_541:nth-child(3){animation-delay:.4s}@keyframes _typingBounce_z6oby_1{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-8px);opacity:1}}._composerContainer_z6oby_572{flex-shrink:0}._helperPrompts_z6oby_576{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;padding-bottom:8px;justify-content:center}._helperPrompt_z6oby_576{padding:8px 16px;background-color:var(--bg-tab);border:1px solid var(--border-color);border-radius:20px;font-size:.8125rem;color:var(--text-secondary);cursor:pointer;transition:all .2s;white-space:nowrap;min-width:0;max-width:calc(100% - 16px);overflow:hidden;text-overflow:ellipsis}._helperPrompt_z6oby_576:hover{background-color:var(--bg-tab-hover);border-color:var(--color-primary);color:var(--color-primary)}._composerInput_z6oby_607{display:flex;align-items:center;gap:12px;background-color:var(--bg-input);border:1px solid var(--border-color);border-radius:24px;padding:8px 16px;transition:border-color .2s,box-shadow .2s}._composerInput_z6oby_607:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-light)}._composerInput_z6oby_607 input{flex:1;border:none;background:none;font-size:.9375rem;color:var(--text-primary);outline:none;padding:8px 0}._composerInput_z6oby_607 input::placeholder{color:var(--text-muted)}._composerButton_z6oby_637{background:none;border:none;padding:8px;cursor:pointer;color:var(--text-muted);border-radius:50%;transition:all .2s;display:flex;align-items:center;justify-content:center;font-size:1.125rem}._composerButton_z6oby_637:hover{background-color:var(--bg-hover);color:var(--text-primary)}._sendButton_z6oby_656{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;border:none;transition:transform .2s,box-shadow .2s}._sendButton_z6oby_656:hover{transform:scale(1.05);box-shadow:0 4px 12px var(--color-primary-shadow)}._sendButton_z6oby_656:disabled{opacity:.5;cursor:not-allowed;transform:none}._rightPanel_z6oby_681{width:280px;background-color:var(--bg-sidebar);border-left:1px solid var(--border-color);padding:20px;overflow-y:auto;flex-shrink:0}._rightPanelSection_z6oby_690{margin-bottom:24px}._rightPanelTitle_z6oby_694{font-size:.875rem;font-weight:600;color:var(--text-primary);margin-bottom:12px}._detailRow_z6oby_701{display:flex;justify-content:space-between;align-items:center;padding:8px 0}._detailLabel_z6oby_708{font-size:.8125rem;color:var(--text-secondary)}._detailValue_z6oby_713{font-size:.8125rem;font-weight:500;color:var(--text-primary)}._progressBar_z6oby_719{width:100%;height:8px;background-color:var(--bg-hover);border-radius:4px;overflow:hidden;margin-top:8px}._progressFill_z6oby_728{height:100%;background:linear-gradient(90deg,var(--color-primary) 0%,var(--color-success) 100%);border-radius:4px;transition:width .3s}._resourceLink_z6oby_735{display:flex;align-items:center;gap:10px;padding:10px 12px;background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:10px;margin-bottom:8px;cursor:pointer;transition:all .2s}._resourceLink_z6oby_735:hover{border-color:var(--color-primary);background-color:var(--bg-hover)}._resourceIcon_z6oby_753{font-size:1.25rem}._resourceText_z6oby_757{font-size:.8125rem;color:var(--text-primary)}._resourceSubtext_z6oby_762{font-size:.6875rem;color:var(--text-muted)}._tipCard_z6oby_767{display:flex;align-items:flex-start;gap:10px;padding:12px;background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:10px;margin-bottom:8px}._tipIcon_z6oby_778{font-size:1rem;flex-shrink:0}._tipText_z6oby_783{font-size:.8125rem;color:var(--text-secondary);line-height:1.4}._emptyState_z6oby_789{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;padding:40px 40px 100px;text-align:center;overflow-y:auto}._emptyStateIcon_z6oby_801{font-size:4rem;margin-bottom:20px}._emptyStateTitle_z6oby_806{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin-bottom:8px}._emptyStateText_z6oby_813{font-size:.9375rem;color:var(--text-secondary);margin-bottom:24px;max-width:400px}._recentConversationsSection_z6oby_820{margin-top:40px;text-align:left;max-width:600px;width:100%}._recentConversationsTitle_z6oby_827{margin-bottom:16px;color:var(--text-primary)}._starterGrid_z6oby_832{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;max-width:500px;width:100%}._starterButton_z6oby_840{padding:16px;background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:12px;text-align:left;cursor:pointer;transition:all .2s}._starterButton_z6oby_840:hover{border-color:var(--color-primary);transform:translateY(-2px);box-shadow:0 4px 12px #00000014}._subjectSelectGrid_z6oby_856{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;padding:20px;max-width:900px;margin:0 auto}._subjectCard_z6oby_865{display:flex;align-items:center;gap:16px;padding:20px;background-color:var(--bg-surface);border:1px solid var(--border-color);border-radius:16px;cursor:pointer;transition:all .2s}._subjectCard_z6oby_865:hover{transform:translateY(-2px);box-shadow:0 8px 24px #0000001a;border-color:var(--color-primary)}._subjectCardIcon_z6oby_883{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.75rem}._subjectCardTitle_z6oby_893{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:4px}._subjectCardSubtitle_z6oby_900{font-size:.8125rem;color:var(--text-secondary)}._mobileHeader_z6oby_905{display:none;padding:12px 16px;border-bottom:1px solid var(--border-color);background-color:var(--bg-surface);align-items:center;gap:12px}._mobileMenuButton_z6oby_914{background:none;border:none;padding:8px;font-size:1.25rem;cursor:pointer;color:var(--text-primary);border-radius:8px}._mobileMenuButton_z6oby_914:hover{background-color:var(--bg-hover)}._mobileOverlay_z6oby_928{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background-color:#00000080;z-index:40}._mobileOverlayVisible_z6oby_936{display:block}@media(max-width:1024px){._rightPanel_z6oby_681{display:none}}@media(max-width:768px){._sidebar_z6oby_20{position:fixed;left:-300px;top:0;bottom:0;z-index:50;transition:left .3s ease;width:300px;box-shadow:4px 0 20px #00000026}._sidebarOpen_z6oby_958{left:0}._mobileHeader_z6oby_905{display:flex}._mobileOverlay_z6oby_928{display:block;opacity:0;pointer-events:none;transition:opacity .3s}._mobileOverlayVisible_z6oby_936{opacity:1;pointer-events:auto}._messagesContainer_z6oby_395{padding:16px}._messageGroup_z6oby_436{max-width:85%}._composerContainer_z6oby_572{flex-shrink:0;padding:8px 12px 4px;background-color:var(--bg-primary);border-top:1px solid var(--border-color)}._helperPrompts_z6oby_576{margin-bottom:6px;padding-bottom:0;flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;gap:6px;-webkit-overflow-scrolling:touch;scrollbar-width:none;-ms-overflow-style:none}._helperPrompts_z6oby_576::-webkit-scrollbar{display:none}._starterGrid_z6oby_832{grid-template-columns:1fr}._subjectSelectGrid_z6oby_856{grid-template-columns:1fr;padding:12px 12px 0;gap:10px}._subjectCard_z6oby_865{padding:12px;gap:10px;border-radius:12px}._subjectCardIcon_z6oby_883{width:36px;height:36px;font-size:1.25rem;border-radius:10px}._subjectCardTitle_z6oby_893{font-size:.875rem;margin-bottom:2px}._subjectCardSubtitle_z6oby_900{font-size:.7rem}._emptyState_z6oby_789{padding:8px 12px 100px}._emptyStateIcon_z6oby_801{font-size:2rem;margin-bottom:8px}._emptyStateTitle_z6oby_806{font-size:1.125rem;margin-bottom:6px}._emptyStateText_z6oby_813{font-size:.8125rem;margin-bottom:12px}._recentConversationsSection_z6oby_820{margin-top:20px}._recentConversationsTitle_z6oby_827{margin-bottom:10px;font-size:.9rem}._chatHeader_z6oby_298{display:none}._messageWrapper_z6oby_411{animation:none}._newChatButton_z6oby_136:hover,._newChatButton_z6oby_136:active,._starterButton_z6oby_840:hover,._subjectCard_z6oby_865:hover,._sendButton_z6oby_656:hover{transform:none}}@media(max-width:480px){._messageBubble_z6oby_460{padding:10px 14px;font-size:.875rem}._composerInput_z6oby_607{padding:6px 12px}._composerInput_z6oby_607 input{font-size:.875rem}._helperPrompt_z6oby_576{padding:6px 12px;font-size:.75rem;flex-shrink:0}}:root{--color-primary: #0d9488;--color-primary-dark: #0f766e;--color-primary-light: rgba(13, 148, 136, .15);--color-primary-shadow: rgba(13, 148, 136, .25);--color-success: #10b981;--color-warning: #f59e0b;--color-danger: #ef4444}[data-theme=light]{--bg-primary: #f8fafc;--bg-sidebar: #ffffff;--bg-surface: #ffffff;--bg-chat: #f8fafc;--chat-gradient: linear-gradient(135deg, #f0fdfa 0%, #f5f3ff 25%, #f0f9ff 50%, #faf5ff 75%, #f0fdfa 100%);--bg-hover: #f1f5f9;--bg-active: #e0f2f1;--bg-input: #ffffff;--bg-tab: #f1f5f9;--bg-tab-hover: #e2e8f0;--bg-message-assistant: #ffffff;--bg-code: rgba(0, 0, 0, .05);--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #94a3b8;--border-color: #e2e8f0;--subject-math: #3b82f6;--subject-math-bg: #eff6ff;--subject-science: #10b981;--subject-science-bg: #ecfdf5;--subject-english: #a855f7;--subject-english-bg: #faf5ff;--subject-history: #f59e0b;--subject-history-bg: #fffbeb;--subject-social: #f43f5e;--subject-social-bg: #fff1f2}[data-theme=dark]{--bg-primary: #0f172a;--bg-sidebar: #1e293b;--bg-surface: #1e293b;--bg-chat: #0f172a;--chat-gradient: linear-gradient(135deg, #0f1f2e 0%, #151525 25%, #0f172a 50%, #141428 75%, #0f1f2e 100%);--bg-hover: #334155;--bg-active: #134e4a;--bg-input: #1e293b;--bg-tab: #334155;--bg-tab-hover: #475569;--bg-message-assistant: #1e293b;--bg-code: rgba(255, 255, 255, .1);--text-primary: #f1f5f9;--text-secondary: #94a3b8;--text-muted: #64748b;--border-color: #334155;--subject-math: #60a5fa;--subject-math-bg: #1e3a8a;--subject-science: #34d399;--subject-science-bg: #064e3b;--subject-english: #c084fc;--subject-english-bg: #581c87;--subject-history: #fbbf24;--subject-history-bg: #78350f;--subject-social: #fb7185;--subject-social-bg: #881337}._icon_1miab_1{display:inline-flex;align-items:center;justify-content:center}._pageBackground_zkw2e_1{flex:1;display:flex;flex-direction:column;background-size:400% 400%;animation:_gradientShift_zkw2e_1 15s ease infinite;min-height:calc(100vh - 6rem)}@keyframes _gradientShift_zkw2e_1{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}._container_zkw2e_16{padding:1.25rem 1.25rem 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