@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-cyrillic-ext-wght-normal-BOeWTOD4.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-cyrillic-wght-normal-DqGufNeO.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-greek-ext-wght-normal-DlzME5K_.woff2) format("woff2-variations");unicode-range:U+1F00-1FFF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-greek-wght-normal-CkhJZR-_.woff2) format("woff2-variations");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-vietnamese-wght-normal-CBcvBZtf.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-latin-ext-wght-normal-DO1Apj_S.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-latin-wght-normal-Dx4kXJAl.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{font-family:Inter Variable,Inter,ui-sans-serif,system-ui,sans-serif;font-optical-sizing:auto;font-synthesis:none;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;--ink: #202c3c;--ink-soft: #586477;--muted: #8993a2;--line: #e6e9ef;--violet: #7254b2;--focus: #7254b2;color:var(--ink);background:#fff}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}:where(button,input,textarea,[role=tab],[role=switch],[role=slider]):focus-visible{outline:2px solid var(--focus);outline-offset:2px}::selection{background:#dcd2f2;color:#29213a}.lab-app{display:flex;width:100%;min-height:100dvh;background:#fff}.editor-sidebar{display:flex;flex-direction:column;position:sticky;top:0;flex:0 0 302px;width:302px;height:100dvh;background:#fff;border-right:1px solid var(--line);z-index:2}.sidebar-top{display:flex;align-items:center;justify-content:space-between;padding:0 21px;height:62px;flex:none}.sidebar-title{font-size:13px;font-weight:700;letter-spacing:-.15px}.reset-button{width:31px;height:31px;display:grid;place-items:center;border:1px solid transparent;border-radius:7px;background:transparent;color:#768196}.reset-button:hover{background:#f3f3f7;color:#7254b2}.editor-tabs{min-height:0;flex:1;display:flex;flex-direction:column}.tab-list{display:grid;grid-template-columns:repeat(3,1fr);gap:0;padding:0 13px;border-bottom:1px solid var(--line);flex:none}.tab-trigger{display:grid;place-items:center;height:43px;background:transparent;border:0;border-bottom:2px solid transparent;margin-bottom:-1px;font-size:12px;font-weight:620;color:#828b99}.tab-trigger[data-state=active]{color:#65439f;border-bottom-color:var(--violet)}.tab-trigger:hover:not([data-state=active]){color:#3a475a}.sidebar-scroll{overflow-y:auto;flex:1;min-height:0;overscroll-behavior:contain}.sidebar-scroll::-webkit-scrollbar{width:6px}.sidebar-scroll::-webkit-scrollbar-thumb{border-radius:6px;background:#d9dce5}.tab-panel{padding:5px 21px 35px}.settings-section{padding:21px 0 23px;border-bottom:1px solid var(--line)}.settings-section:last-child{border-bottom:0}.section-heading{margin:0 0 19px}.section-heading h3{margin:0;font-size:12px;font-weight:720;letter-spacing:-.1px}.section-heading p{margin:6px 0 0;color:#8892a1;font-size:11px;line-height:1.5}.field-group{display:grid;gap:9px;margin:0 0 18px}.field-group:last-child{margin-bottom:0}.field-heading,.field-between{font-size:11px;font-weight:630;color:#4c586b}.field-between{display:flex;align-items:center;justify-content:space-between;gap:12px}.field-between output{color:#9199a5;font-size:10px;font-variant-numeric:tabular-nums;font-weight:500}.field-hint{margin:0;color:#919aa8;font-size:10px;line-height:1.55}.text-field{width:100%;background:#fff;color:#26334a;border:1px solid #dbe0e9;border-radius:8px;padding:10px 11px;font-size:12px;line-height:1.55;outline:none;transition:border-color .12s,box-shadow .12s}.text-field:hover{border-color:#c7cdda}.text-field:focus{border-color:#8c72bb;box-shadow:0 0 0 3px #7254b21c}.textarea-field{resize:vertical;min-height:95px}.label-field{max-width:90px;text-align:center;font-weight:650}.segmented-control{display:flex;align-items:stretch;width:100%;gap:2px;padding:3px;border-radius:8px;border:1px solid #e6e8ed;background:#f5f6f8}.segmented-item{display:inline-flex;align-items:center;justify-content:center;gap:6px;flex:1;min-width:0;min-height:33px;padding:6px 9px;color:#778394;font-size:11px;font-weight:620;background:transparent;border:1px solid transparent;border-radius:6px;white-space:nowrap}.segmented-item:hover{color:#39465a}.segmented-item.selected{color:#57427d;background:#fff;border-color:#e1dfe8;box-shadow:0 1px 3px #151b2a0e}.segmented-item svg{flex:none}.setting-switch{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:44px;padding:8px 0}.switch-title{color:#495569;font-size:11px;font-weight:625}.setting-switch p{font-size:10px;color:#949caa;margin:4px 0 0;line-height:1.4}.switch-root{width:34px;height:20px;flex:none;padding:0;border:0;border-radius:99px;background:#ccd2db;position:relative;transition:background .14s}.switch-root[data-state=checked]{background:var(--violet)}.switch-thumb{display:block;width:14px;height:14px;border-radius:50%;transform:translate(3px);background:#fff;box-shadow:0 1px 2px #0002;transition:transform .14s}.switch-thumb[data-state=checked]{transform:translate(17px)}.swatch-row{display:flex;align-items:center;flex-wrap:wrap;gap:11px;padding:3px 2px 5px}.swatch{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;border:2px solid white;outline:1px solid transparent;color:#fff}.swatch.is-selected{outline:2px solid #8064b7;outline-offset:1px}.swatch:hover:not(.is-selected){outline-color:#d2d5dc}.color-fields{display:grid;gap:1px}.color-field{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:41px;font-size:11px;color:#586376;font-weight:570;cursor:pointer}.color-value{display:flex;align-items:center;gap:8px}.color-input{display:block;width:27px;height:27px;padding:3px;background:#fff;border:1px solid #d9dde6;border-radius:7px;cursor:pointer}.color-input::-webkit-color-swatch-wrapper{padding:0}.color-input::-webkit-color-swatch{border:0;border-radius:4px}.color-input::-moz-color-swatch{border:0;border-radius:4px}.color-hex{min-width:65px;text-align:right;color:#8e98a6;font-size:10px;font-weight:540;font-variant-numeric:tabular-nums}.slider-root{position:relative;display:flex;align-items:center;width:100%;height:22px;touch-action:none;-webkit-user-select:none;user-select:none}.slider-track{flex:1;position:relative;height:4px;border-radius:10px;background:#e9e8ef}.slider-range{position:absolute;height:100%;border-radius:10px;background:#7a60b1}.slider-thumb{display:block;width:15px;height:15px;border:3px solid white;box-shadow:0 0 0 1px #b2a1d0,0 1px 3px #0001;border-radius:50%;background:var(--violet);cursor:grab}.slider-thumb:active{cursor:grabbing}.editor-stage{position:relative;flex:1;min-width:0;min-height:100dvh;background:#fff;transition:background-color .15s}.editor-stage.theme-dark{background:#141a26}.view-switch{position:absolute;top:25px;right:35px;width:184px;z-index:1}.view-switch .segmented-control{border-color:#e4e5ec;background:#f4f4f7}.theme-dark .view-switch .segmented-control{background:#282f40;border-color:#3a4358}.theme-dark .view-switch .segmented-item{color:#aeb8c9}.theme-dark .view-switch .segmented-item.selected{background:#3c4457;color:#fff;border-color:#495167}.callout-placement{width:100%;max-width:1140px;margin:0 auto;display:flex;justify-content:center;padding:124px clamp(26px,6%,80px) 54px}.callout-placement .callout-shell{flex:0 1 660px}.callout-placement.width-full .callout-shell{flex:1 1 100%}.callout-placement.width-half .callout-shell{flex:0 1 50%}.callout-placement.width-auto .callout-shell{flex:0 1 660px}.callout-shell{--callout-accent: #7254b2;--callout-header: #7254b2;--callout-on-header: #fff;--callout-background: #fff;--callout-border: #ded9eb;--callout-text: #253249;--callout-radius: 12px;width:100%;min-width:0;overflow:hidden;border:1px solid var(--callout-border);border-radius:var(--callout-radius);background:var(--callout-background);color:var(--callout-text);transition:background-color .15s,box-shadow .15s,border-color .15s,border-radius .15s}.callout-shell.with-shadow{box-shadow:0 10px 24px #1f294012,0 2px 5px #1f294005}.callout-shell.without-border{border-color:transparent}.callout-heading{display:flex;align-items:center;gap:11px;min-height:65px;padding:16px 18px;background:var(--callout-header);color:var(--callout-on-header)}.callout-shell.header-tinted .callout-heading{background:color-mix(in srgb,var(--callout-header) 13%,var(--callout-background));color:var(--callout-text)}.callout-shell.header-plain .callout-heading{background:transparent;color:var(--callout-text);padding-bottom:5px}.callout-marker{display:grid;place-items:center;flex:none;width:31px;height:31px;border-radius:6px;background:var(--callout-on-header);color:var(--callout-header);font-size:16px;font-weight:740;line-height:1}.header-tinted .callout-marker,.header-plain .callout-marker{background:color-mix(in srgb,var(--callout-accent) 13%,var(--callout-background));color:var(--callout-accent)}.callout-label-input{width:100%;height:100%;padding:0 1px;border:1px solid transparent;background:transparent;color:inherit;outline:none;text-align:center;font-size:inherit;font-weight:inherit;border-radius:6px}.callout-label-input:focus{border-color:currentColor}.callout-heading h2{min-width:0;margin:0;font-size:18px;line-height:1.35;font-weight:720;letter-spacing:-.35px;overflow-wrap:anywhere}.callout-title-input{flex:1;min-width:0;width:100%;margin:0 0 0 -6px;border:1px solid transparent;border-radius:6px;padding:5px 6px;background:transparent;color:inherit;outline:none;font-size:18px;font-weight:720;line-height:1.35;letter-spacing:-.35px}.callout-title-input::placeholder{color:inherit;opacity:.62}.callout-title-input:hover,.callout-label-input:hover{background:color-mix(in srgb,currentColor 6%,transparent)}.callout-title-input:focus{border-color:color-mix(in srgb,currentColor 55%,transparent);background:color-mix(in srgb,currentColor 6%,transparent)}.callout-body{padding:20px 20px 24px}.callout-instruction{margin:0;font-size:13px;line-height:1.65;font-weight:465;white-space:pre-wrap}.callout-instruction-input{display:block;width:calc(100% + 12px);min-height:50px;padding:6px;margin:-6px 0 0 -6px;resize:vertical;border-radius:6px;border:1px solid transparent;outline:none;background:transparent;color:inherit;font-size:13px;line-height:1.65;font-weight:465}.callout-instruction-input::placeholder{color:inherit;opacity:.6}.callout-instruction-input:hover{background:color-mix(in srgb,var(--callout-text) 3%,var(--callout-background))}.callout-instruction-input:focus{border-color:var(--callout-accent);background:color-mix(in srgb,var(--callout-text) 3%,var(--callout-background))}.callout-content-region{min-height:66px}.callout-shell.density-compact .callout-heading{min-height:52px;padding:10px 13px;gap:8px}.callout-shell.density-compact .callout-body{padding:13px 14px 15px}.callout-shell.density-compact .callout-content-region{min-height:35px}@media(max-width:1050px){.editor-sidebar{flex-basis:280px;width:280px}.callout-placement{padding-left:30px;padding-right:30px}}@media(max-width:720px){.editor-sidebar{flex-basis:255px;width:255px}.sidebar-top{padding:0 16px}.tab-panel{padding-left:16px;padding-right:16px}.callout-placement{padding-left:18px;padding-right:18px}.callout-placement.width-half .callout-shell{flex-basis:100%}}@media(max-width:580px){.lab-app{display:block}.editor-sidebar{position:relative;width:100%;height:auto;min-height:0}.sidebar-top{height:52px}.sidebar-scroll{max-height:260px;overflow:auto}.tab-panel{padding-left:19px;padding-right:19px}.editor-stage{min-height:420px}.view-switch{top:18px;right:18px}.callout-placement{padding:85px 16px 35px}.callout-heading{padding:13px;min-height:54px}.callout-heading h2,.callout-title-input{font-size:16px}.callout-body{padding:16px 14px 18px}.callout-content-region{min-height:48px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:.01ms!important}}.callout-body>.read-content{margin-top:15px}.callout-body>.read-content:first-child{margin-top:0}.read-content{min-width:0}.rich-text-editor{font-size:13px;line-height:1.7;overflow-wrap:anywhere}.rich-text-editor .tiptap{outline:none;min-height:52px}.rich-text-editor .tiptap>:first-child{margin-top:0}.rich-text-editor .tiptap>:last-child{margin-bottom:0}.rich-text-editor .tiptap p{margin:0 0 9px}.rich-text-editor .tiptap ul,.rich-text-editor .tiptap ol{padding-left:20px;margin:8px 0 10px}.rich-text-editor .tiptap li{padding-left:3px}.rich-text-editor .tiptap li p{margin:1px 0}.rich-text-editor .tiptap:focus-visible{outline:1px solid var(--callout-accent);outline-offset:6px;border-radius:2px}.rich-text-editor .tiptap p.is-editor-empty:first-child:before{color:color-mix(in srgb,var(--callout-text) 48%,transparent);content:"Start typing…";pointer-events:none;float:left;height:0}.rich-toolbar{display:flex;align-items:center;gap:3px;padding:0 0 10px;margin-bottom:11px;border-bottom:1px solid color-mix(in srgb,var(--callout-text) 12%,transparent)}.read-icon-button{flex:none;display:inline-flex;justify-content:center;align-items:center;border:1px solid transparent;border-radius:6px;background:transparent;color:color-mix(in srgb,var(--callout-text) 66%,transparent);width:27px;height:27px;padding:0}.read-icon-button:hover:not(:disabled){color:var(--callout-accent);background:color-mix(in srgb,var(--callout-accent) 9%,var(--callout-background))}.read-icon-button.is-active{background:color-mix(in srgb,var(--callout-accent) 13%,var(--callout-background));color:var(--callout-accent)}.read-icon-button:disabled{opacity:.27;cursor:not-allowed}.read-check-item{display:flex;align-items:center;gap:12px;padding:10px 7px;min-height:46px;border-bottom:1px solid color-mix(in srgb,var(--callout-text) 10%,transparent)}.read-check-item:first-child{padding-top:2px}.read-check-item:last-of-type{border-bottom:0}.check-decoration,.learner-check{flex:none;display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:4px;border:1.5px solid color-mix(in srgb,var(--callout-text) 33%,transparent);background:var(--callout-background)}.learner-check{appearance:none;-webkit-appearance:none;cursor:pointer;position:relative;margin:0;transition:background .12s,border-color .12s}.learner-check:checked{background:var(--callout-accent);border-color:var(--callout-accent)}.learner-check:checked:after{content:"";position:absolute;width:8px;height:5px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg) translate(1px,-1px)}.learner-check:focus-visible{outline:2px solid var(--callout-accent);outline-offset:3px}.check-text{flex:1;min-width:0;font-size:13px;line-height:1.5}.read-check-item.checked .check-text{text-decoration:line-through;opacity:.58}.inline-edit{min-width:0;width:100%;border:1px solid transparent;border-radius:5px;outline:none;color:inherit;font:inherit;background:transparent;padding:5px 6px;margin:-5px -6px;font-size:13px;line-height:1.5}.inline-edit:hover{background:color-mix(in srgb,var(--callout-text) 3%,var(--callout-background))}.inline-edit:focus{border-color:var(--callout-accent);background:var(--callout-background)}.inline-edit::placeholder{color:color-mix(in srgb,var(--callout-text) 36%,transparent)}.check-text-edit{flex:1}.item-tools{display:flex;gap:1px;flex:none;align-items:center;opacity:0;transition:opacity .12s}.read-check-item:hover .item-tools,.read-check-item:focus-within .item-tools{opacity:1}@media(hover:none){.item-tools{opacity:1}}.read-add-control{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:none;border:none;padding:9px 4px 4px;color:var(--callout-accent);font-size:12px;font-weight:640}.read-add-control:hover{text-decoration:underline;text-underline-offset:3px}.read-table-area{width:100%}.read-table-scroll{overflow-x:auto;width:100%;overscroll-behavior-inline:contain}.read-table{width:100%;border-collapse:collapse;table-layout:fixed;text-align:left;font-size:12px;color:var(--callout-text)}.read-table th,.read-table td{border:1px solid color-mix(in srgb,var(--callout-text) 14%,var(--callout-background));vertical-align:middle}.read-table thead th{padding:10px 11px;font-size:12px;font-weight:670;background:color-mix(in srgb,var(--callout-accent) 9%,var(--callout-background))}.read-table tbody td{padding:10px 11px;line-height:1.5;overflow-wrap:anywhere}.read-table .table-row-actions-header,.read-table .table-row-actions{padding:2px;width:36px;min-width:36px;text-align:center;background:var(--callout-background);border-top-color:transparent;border-bottom-color:transparent;border-right-color:transparent}.table-heading-content{display:flex;align-items:center;gap:4px;min-width:0}.table-heading-edit{font-weight:670;font-size:12px}.table-heading-content .read-icon-button{width:23px;height:24px;opacity:0}.table-heading-content:hover .read-icon-button,.table-heading-content:focus-within .read-icon-button{opacity:1}.read-table .table-row-actions .read-icon-button{opacity:0}.read-table tbody tr:hover .table-row-actions .read-icon-button,.read-table tbody tr:focus-within .table-row-actions .read-icon-button{opacity:1}@media(hover:none){.table-heading-content .read-icon-button,.read-table .table-row-actions .read-icon-button{opacity:1}}.read-table .table-cell-edit{font-size:12px}.read-table-tools{display:flex;flex-wrap:wrap;align-items:center;gap:15px;padding:8px 0 0}.callout-shell.density-compact .read-check-item{padding-top:5px;padding-bottom:5px;min-height:36px}.callout-shell.density-compact .read-table tbody td{padding:6px 9px}.callout-shell.density-compact .read-table thead th{padding:7px 9px}.callout-shell.density-compact .rich-toolbar{margin-bottom:8px;padding-bottom:7px}.callout-placement.width-auto.is-wide .callout-shell{flex:1 1 100%}@media(max-width:760px){.item-tools{opacity:1}.read-check-item{gap:8px}.read-icon-button{width:25px;height:27px}.read-table tbody td{padding:8px 9px}}@media print{.editor-sidebar,.view-switch,.rich-toolbar,.item-tools,.read-add-control,.read-table-tools,.table-row-actions,.table-row-actions-header{display:none!important}.lab-app,.editor-stage{min-height:0;display:block;background:#fff!important}.callout-placement{max-width:100%;padding:0}.callout-placement .callout-shell{flex:1 1 100%;max-width:100%}.callout-shell{box-shadow:none!important;break-inside:avoid}.read-check-item,.read-table th,.read-table td{break-inside:avoid}.read-table-scroll{overflow:visible}}
