._topBar_titdt_1{width:100%;padding:0 4px;background:#fffffff2;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);position:fixed;height:46px;top:0;left:var(--lesson-sidebar-width, 0px);right:0;width:calc(100% - var(--lesson-sidebar-width, 0px));z-index:100;box-shadow:0 4px 20px #00000014,0 1px 3px #0000000d,inset 0 1px #ffffffe6;border-bottom:1px solid rgba(200,200,200,.3);display:flex;justify-content:space-between;align-items:center;transition:all .3s cubic-bezier(.4,0,.2,1)}._sidebarMenuButton_titdt_25{display:none;width:36px;height:36px;flex:0 0 36px;align-items:center;justify-content:center;padding:0;border:0;border-radius:10px;background:transparent;color:#374151;cursor:pointer}._sidebarMenuButton_titdt_25:hover{background:#0000000d}._sidebarMenuButton_titdt_25:focus-visible{outline:2px solid #4051b5;outline-offset:1px}._leftControls_titdt_49{display:flex;align-items:center;gap:14px}._rightControls_titdt_55{display:flex;align-items:center;gap:4px}._title_titdt_61{display:flex;align-items:center;background:#f8f9facc;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:12px;padding:2px 4px;transition:all .2s cubic-bezier(.4,0,.2,1)}._titleDropdown_titdt_72{padding:6px 12px;border-radius:10px;transition:all .2s cubic-bezier(.4,0,.2,1);font-weight:600;font-size:14px;color:#1f2937;cursor:pointer;position:relative}._titleDropdown_titdt_72:hover{background:#0000000a;transform:scale(1.02)}._gridToggle_titdt_88{display:flex;align-items:center}._orientationToggle_titdt_93{display:flex;align-items:center;gap:4px}._undoControls_titdt_99{display:flex;align-items:center}._undoButtons_titdt_104{display:flex;gap:4px;background:#f8f9facc;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-radius:10px;padding:4px;border:1px solid rgba(200,200,200,.2)}._versionHistoryControls_titdt_115{display:inline-flex;align-items:center;gap:4px}._controlSpacer_titdt_121{width:1px;height:24px;margin:0 4px;background:#6b72803d}._dockButton_titdt_129{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 10px;background:#ffffffe6;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(200,200,200,.3);border-radius:12px;font-size:13px;font-weight:600;color:#374151;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 8px #0000000f,inset 0 1px #ffffffe6;position:relative;outline:none;-webkit-tap-highlight-color:transparent}._dockButton_titdt_129:hover{transform:translateY(-1px) scale(1.02);background:#fff;box-shadow:0 4px 12px #0000001a,inset 0 1px #ffffffe6}._dockButton_titdt_129:active{transform:scale(.98);box-shadow:0 1px 4px #00000014,inset 0 1px #ffffffe6}._dockButton_titdt_129:focus-visible{outline:2px solid rgba(59,130,246,.5);outline-offset:2px}._iconButton_titdt_174{width:36px;height:36px;padding:0;display:inline-flex;align-items:center;justify-content:center;background:#ffffffe6;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(200,200,200,.3);border-radius:10px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 8px #0000000f,inset 0 1px #ffffffe6;outline:none;-webkit-tap-highlight-color:transparent}._iconButton_titdt_174:hover{transform:scale(1.08);background:#fff;box-shadow:0 4px 12px #0000001a,inset 0 1px #ffffffe6}._iconButton_titdt_174:active{transform:scale(.95)}._iconButton_titdt_174:disabled{opacity:.5;cursor:not-allowed;transform:none}._segmentedControl_titdt_214{background:#f8f9facc;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(200,200,200,.3);border-radius:10px;padding:2px;box-shadow:0 2px 8px #0000000f,inset 0 1px #ffffffe6}@keyframes _classyPulse_titdt_1{0%{transform:translateY(-1px) scale(1.02);box-shadow:0 4px 16px #3b82f633,0 2px 8px #00000014,inset 0 1px #ffffffe6}50%{transform:translateY(-2px) scale(1.05);box-shadow:0 8px 24px #3b82f659,0 4px 12px #0000001a,inset 0 1px #fffffff2}to{transform:translateY(-1px) scale(1.02);box-shadow:0 4px 16px #3b82f633,0 2px 8px #00000014,inset 0 1px #ffffffe6}}._pulsing_titdt_253{animation:_classyPulse_titdt_1 1.5s ease-in-out 1;background:linear-gradient(135deg,#fff,#f8fafc)}._pulsing_titdt_253:hover{animation:none}._mobileExportButton_titdt_263{display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:8px 12px;background:#ffffffe6;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(200,200,200,.3);border-radius:20px;cursor:pointer;transition:all .2s cubic-bezier(.4,0,.2,1);box-shadow:0 2px 8px #0000000f,inset 0 1px #ffffffe6;outline:none;-webkit-tap-highlight-color:transparent;color:#374151}._mobileExportButton_titdt_263:hover{transform:scale(1.05);background:#fff;box-shadow:0 4px 12px #0000001a,inset 0 1px #ffffffe6}._mobileExportButton_titdt_263:active{transform:scale(.98)}._mobileExportButton_titdt_263:disabled{opacity:.5;cursor:not-allowed;transform:none}@media(max-width:768px){._leftControls_titdt_49{padding-right:12px}}._mobileExportButton_titdt_263._pulsing_titdt_253{animation:_classyPulse_titdt_1 1.5s ease-in-out 1;background:linear-gradient(135deg,#fff,#f8fafc)}@media(max-width:768px){._topBar_titdt_1{height:46px;padding:6px 4px;left:0;width:100%}._sidebarMenuButton_titdt_25{display:inline-flex}._mobileLessonTitle_titdt_327{font-size:.9rem;line-height:1.2}._dockButton_titdt_129{padding:6px 10px;font-size:12px}._iconButton_titdt_174{width:32px;height:32px}._controlSpacer_titdt_121{height:20px;margin:0 2px}._leftControls_titdt_49{gap:8px}._rightControls_titdt_55{gap:4px}}._sidebarTrigger_hnci7_1,._topbarTrigger_hnci7_2{display:flex;align-items:center;border:0;color:#202123;cursor:pointer;transition:background-color .12s ease}._sidebarTrigger_hnci7_1{width:100%;min-width:0;gap:10px;padding:9px 8px;border-radius:11px;background:transparent;text-align:left}._sidebarTrigger_hnci7_1:hover,._sidebarTrigger_hnci7_1[aria-expanded=true]{background:#e9e9e5}._sidebarTrigger_hnci7_1:focus-visible,._topbarTrigger_hnci7_2:focus-visible{outline:2px solid #4051b5;outline-offset:2px}._usageGauge_hnci7_32{position:relative;display:inline-flex;width:36px;height:36px;flex:0 0 36px;align-items:center;justify-content:center;border-radius:50%;background:conic-gradient(#4051b5 var(--usage-percent),#d9d9d4 0)}._usageGauge_hnci7_32:after{position:absolute;inset:4px;border-radius:50%;background:#f7f7f5;content:""}._sidebarTrigger_hnci7_1:hover ._usageGauge_hnci7_32:after,._sidebarTrigger_hnci7_1[aria-expanded=true] ._usageGauge_hnci7_32:after{background:#e9e9e5}._usageGaugeCenter_hnci7_57{position:relative;z-index:1;color:#343b76;font-size:8px;font-weight:750;font-variant-numeric:tabular-nums}._identity_hnci7_66{display:flex;min-width:0;flex:1;flex-direction:column;gap:2px}._displayName_hnci7_74,._accountSummary_hnci7_75{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}._displayName_hnci7_74{font-size:14px;font-weight:650}._accountSummary_hnci7_75{color:#73757a;font-size:11px;font-weight:450}._settingsIcon_hnci7_92{flex:0 0 auto;color:#696b70}._topbarTrigger_hnci7_2{gap:4px;padding:6px 12px;border-radius:4px;background:transparent}._topbarTrigger_hnci7_2:hover{background:#f1f2f3}._topbarName_hnci7_108{max-width:180px;overflow:hidden;font-size:14px;font-weight:500;white-space:nowrap;text-overflow:ellipsis}._menuDropdown_hnci7_117{padding:6px}._accountDetails_hnci7_121{padding-top:7px;padding-bottom:7px}._presentLessonsTitle_hnci7_126{margin-bottom:6px;color:#202123;letter-spacing:.01em}._menuUsername_hnci7_132{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}._presentationLinks_hnci7_138{display:flex;flex-direction:column;align-items:flex-start;gap:2px;margin-top:6px}._presentationLinks_hnci7_138 a{max-width:100%;overflow:hidden;color:#4051b5;font-size:11px;font-weight:500;line-height:1.35;text-decoration:none;text-overflow:ellipsis;white-space:nowrap}._presentationLinks_hnci7_138 a:hover{text-decoration:underline}._presentationLinks_hnci7_138 a:focus-visible{border-radius:2px;outline:2px solid #4051b5;outline-offset:2px}._usageLabel_hnci7_168{color:#4051b5}@media(max-width:768px){._topbarName_hnci7_108{display:none}}