@font-face{font-family:AxMath;src:url(./AxMath-Regular-BJ-pkwBB.ttf) format("truetype");font-weight:400;font-style:normal}@font-face{font-family:AxMath;src:url(./AxMath-Italic-0cLRlryO.ttf) format("truetype");font-weight:400;font-style:italic}@font-face{font-family:AxMath;src:url(./AxMath-Bold-BrMN_prG.ttf) format("truetype");font-weight:700;font-style:normal}@font-face{font-family:AxMath;src:url(./AxMath-BoldItalic-D1qX9GvX.ttf) format("truetype");font-weight:700;font-style:italic}@font-face{font-family:Patrick Hand;src:url(./PatrickHand-vietnamese-C6ySP1nI.woff2) format("woff2");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:Patrick Hand;src:url(./PatrickHand-latin-ext-DK_vwKOo.woff2) format("woff2");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:Patrick Hand;src:url(./PatrickHand-latin-C0o9_-Bw.woff2) format("woff2");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}@font-face{font-family:Inter;font-weight:100 900;font-display:swap;src:url(./Inter-vietnamese-YEzCLjIM.woff2) format("woff2");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;font-weight:100 900;font-display:swap;src:url(./Inter-latin-ext-B_-bZUTo.woff2) format("woff2");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-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Inter;font-weight:100 900;font-display:swap;src:url(./Inter-latin-8kRkwJBP.woff2) format("woff2");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{--ink: #37352f;--muted: #787774;--accent: #2383e2;--accent-dark: #0b6bcb;--line: #e9e9e7;color:var(--ink);font-family:Inter,-apple-system,Segoe UI,system-ui,sans-serif;font-size:13px;background:#fff}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;overflow:hidden}button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}.app{height:100%;display:flex;flex-direction:column;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}.toolbar{display:flex;align-items:center;gap:8px;height:64px;padding:0 10px;background:#fff;border-bottom:1px solid var(--line);flex-shrink:0;z-index:5}.home-link{display:inline-flex;flex-shrink:0;width:28px;height:28px;margin:0 6px 0 4px;border-radius:7px}.home-link svg{width:100%;height:100%}.home-link:focus-visible{outline:2px solid #2383e2;outline-offset:2px}.tb-group{display:flex;align-items:center;gap:2px}.tb-group.tools{margin-left:auto}.tb{display:inline-flex;align-items:center;justify-content:center;gap:1px;min-width:40px;height:40px;padding:0 7px;border:none;border-radius:20px;background:transparent;color:#37352f;cursor:pointer}.tb:hover:not(:disabled){background:#efefed}.tb:disabled{color:#b9c0c7;cursor:default}.tb.on{background:#d3e5ef;color:#2383e2}.tb.on:hover{background:#c6dcea}.swatch{display:inline-flex;align-items:center;justify-content:center;width:28px;height:40px;padding:0;border:none;border-radius:14px;background:transparent;cursor:pointer;position:relative}.swatch span{display:block;flex-shrink:0;border-radius:50%}.swatch:hover{background:#efefed}.swatch.on:after{content:"";position:absolute;left:6px;right:6px;bottom:2px;height:3px;border-radius:2px;background:var(--accent)}.swatch.custom input{position:absolute;opacity:0;width:100%;height:100%;cursor:pointer}.sep{width:1px;height:28px;background:var(--line);margin:0 4px}.tb-palette{display:inline-flex;align-items:center;height:44px;padding:0 5px;margin:0 3px;border-radius:22px;background:#f1f1ef;border:1px solid transparent;flex-shrink:0}.mobile .tb-palette{height:48px;border-radius:24px}.tb-title{display:flex;align-items:center;gap:2px;flex:1 1 0;justify-content:center;font-size:14px;color:#333;white-space:nowrap;min-width:0}.tb-title .dot{color:#888}.zoom-button{border:none;background:transparent;font-size:14px;padding:4px 6px;border-radius:6px;cursor:pointer}.zoom-button:hover{background:#efefed}.dropdown{position:relative}.dropdown-menu{position:fixed;min-width:230px;max-height:calc(100vh - 90px);overflow-y:auto;padding:6px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px #14283c2e;z-index:20;font-size:14px}.dropdown-menu button{display:flex;width:100%;align-items:center;justify-content:space-between;gap:20px;padding:7px 12px;border:none;border-radius:6px;background:transparent;text-align:left;cursor:pointer}.dropdown-menu button:hover:not(:disabled){background:#f1f1ef}.dropdown-menu button:disabled{color:#aab2ba;cursor:default}.dropdown-menu button.checked{background:#d3e5ef;color:var(--accent-dark);font-weight:600}.dropdown-menu button.checked+button.checked{margin-top:3px}.dropdown-menu button.menu-group svg{transform:rotate(-90deg);transition:transform .15s;color:#787774}.dropdown-menu button.menu-group.open{font-weight:600}.dropdown-menu button.menu-group.open svg{transform:none}.menu-group-items{margin:0 0 4px 12px;padding-left:6px;border-left:2px solid #d3e5ef}.dropdown-menu button.eraser-choice{position:relative;justify-content:flex-start;gap:12px;min-width:230px;padding:9px 14px}.dropdown-menu button.tl-choice{flex-direction:column;justify-content:center;gap:5px;padding:10px 4px 8px;border-radius:10px;font-size:12px;line-height:1.2;text-align:center;white-space:normal}.text-bar{position:absolute;top:8px;left:50%;transform:translate(-50%);z-index:30;display:flex;align-items:center;gap:2px;max-width:calc(100% - 16px);padding:4px 6px;overflow-x:auto;scrollbar-width:none;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 4px 16px #00000024}.text-bar::-webkit-scrollbar{display:none}.text-bar>*{flex-shrink:0}.text-bar select{height:34px;padding:0 6px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:14px;color:#37352f}.text-bar .tbar-font{width:120px}.tbar-btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;min-width:36px;height:36px;padding:0 6px;border:none;border-radius:8px;background:transparent;color:#37352f;cursor:pointer}.tbar-btn:hover{background:#f1f1ef}.tbar-btn.on{background:#d3e5ef;color:var(--accent)}.tbar-glyph{font-size:17px;line-height:1;font-family:Segoe UI,system-ui,sans-serif}.tbar-glyph.serif{font-family:AxMath,Times New Roman,serif;font-weight:600}.tbar-glyph.small{font-size:14px}.tbar-a{display:inline-flex;flex-direction:column;align-items:center;font-weight:600}.tbar-a span{width:16px;height:4px;margin-top:2px;border-radius:2px;box-shadow:0 0 0 1px #00000026}.tbar-sep{width:1px;height:22px;margin:0 3px;background:var(--line)}.tbar-done{color:var(--accent);font-weight:600;padding:0 10px}.tbar-color-wrap,.tbar-palette{display:inline-flex;align-items:center;gap:3px}.tbar-swatch{position:relative;width:26px;height:26px;padding:0;border:2px solid #fff;border-radius:50%;box-shadow:0 0 0 1px #dfdfdd;cursor:pointer}.tbar-swatch.on{box-shadow:0 0 0 2px var(--accent)}.tbar-swatch.other{background:conic-gradient(red,#ff0,#0f0,#0ff,#00f,#f0f,red);overflow:hidden}.tbar-swatch.other input{position:absolute;inset:0;opacity:0;width:100%;height:100%;cursor:pointer}.mobile .tbar-btn{min-width:44px;height:44px}.mobile .text-bar select{height:40px}.mobile .tbar-swatch{width:32px;height:32px}.dropdown-menu hr{border:none;border-top:1px solid var(--line);margin:5px 4px}.dropdown-menu.columns{column-width:170px;column-gap:6px;column-rule:1px solid var(--line)}.dropdown-menu.columns button,.dropdown-menu.columns .menu-heading{break-inside:avoid;-webkit-column-break-inside:avoid}.dropdown-menu.columns .menu-heading{break-after:avoid;-webkit-column-break-after:avoid}.dropdown-menu.columns button{padding:8px 10px;line-height:1.25}.mobile .dropdown-menu.columns button{min-height:44px}.shape-sides{display:flex;align-items:stretch;break-inside:avoid;-webkit-column-break-inside:avoid}.shape-sides>button:first-child{flex:1;min-width:0}.shape-sides .sides{align-self:center;flex:none;width:54px;height:30px;margin-left:6px;padding:0 4px;border:1px solid var(--line);border-radius:6px;font:inherit;font-weight:600;color:var(--accent);text-align:center;background:#fff}.mobile .shape-sides .sides{width:64px;height:44px;font-size:16px}.dropdown-menu.columns.by-section{columns:auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:4px 6px}.dropdown-menu.by-section .menu-section{padding-left:6px;border-left:1px solid var(--line)}.menu-stack{display:flex;flex-direction:column;gap:8px}.pen-panel{width:300px;max-width:calc(100vw - 32px);padding:4px 6px 8px}.pp-label{display:flex;justify-content:space-between;align-items:baseline;margin:10px 2px 6px;font-size:13px;color:var(--muted)}.pp-label:first-child{margin-top:4px}.pp-label b{color:var(--accent);font-weight:600}.pp-kinds{display:flex;justify-content:space-between;padding:4px;border-radius:14px;background:#f7f6f3;border:1px solid #e9e9e7}.dropdown-menu .pp-kinds button{width:46px;height:46px;padding:0;justify-content:center;border-radius:11px;color:#37352f}.dropdown-menu .pp-kinds button.on{position:relative;z-index:1;background:#fff;color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.dropdown-menu .pp-kinds button.pp-hl{position:relative}.pp-hl span{position:absolute;left:10px;right:10px;bottom:9px;height:7px;border-radius:2px;opacity:.7}.pp-hl svg{position:relative}.pp-colors{display:grid;grid-template-columns:repeat(6,1fr);gap:7px}.dropdown-menu .pp-colors button,.pp-other{position:relative;width:100%;height:32px;padding:0;border-radius:8px;box-shadow:inset 0 0 0 1px #00000024}.dropdown-menu .pp-colors button.on,.pp-other.on{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--accent)}.pp-other{display:block;background:conic-gradient(red,#ff0,#0f0,#0ff,#00f,#f0f,red);cursor:pointer}.pp-other input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}.pp-sample{display:block;margin:0 auto;border-radius:10px;background:#fcfbfa;border:1px solid #e9e9e7}.pp-width{display:block;width:100%;margin-top:8px;accent-color:var(--accent)}.fill-opacity{margin-top:6px;padding:6px 10px 4px;border-top:1px solid #e9e9e7;min-width:210px}.fill-note{margin:6px 0 0;max-width:230px;font-size:12px;line-height:1.35;color:var(--muted)}.pp-check{display:flex;align-items:center;gap:8px;margin:12px 2px 2px;font-size:13px;cursor:pointer}.graph-scale{display:flex;flex-direction:column;gap:4px;margin-top:8px}.graph-scale input{width:100%;accent-color:var(--accent)}.mobile .graph-scale input{height:32px}.pp-check input{width:18px;height:18px;accent-color:var(--accent)}.mobile .dropdown-menu .pp-colors button,.mobile .pp-other{height:38px}.mobile .pp-width{height:32px}.menu-heading{padding:8px 12px 3px;color:var(--muted);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}.work{flex:1;min-height:0;display:flex}.board-wrap{position:relative;flex:1;min-width:0;min-height:0;display:flex}.names-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(64px,1fr));gap:8px}.names-grid input{width:100%;box-sizing:border-box}.board{position:relative;flex:1;min-height:0;overflow:hidden}.board-canvas{position:absolute;left:0;top:0;pointer-events:none}.board-scroller{position:absolute;inset:0;overflow:auto;touch-action:none;scrollbar-width:none}.board-scroller::-webkit-scrollbar{display:none}html:not(.mobile) .board-scroller{scrollbar-width:auto}html:not(.mobile) .board-scroller::-webkit-scrollbar{display:block;width:12px;height:0}html:not(.mobile) .board-scroller::-webkit-scrollbar-track{background:transparent}html:not(.mobile) .board-scroller::-webkit-scrollbar-thumb{background:#00000047;border:3px solid transparent;border-radius:6px;background-clip:padding-box;min-height:40px}html:not(.mobile) .board-scroller::-webkit-scrollbar-thumb:hover{background-color:#00000073}html:not(.mobile) .board-scroller::-webkit-scrollbar-corner{background:transparent}.board .board-scroller{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath d='M2.5 21.5l1.3-5L16.2 4.1a2 2 0 0 1 2.8 0l.9.9a2 2 0 0 1 0 2.8L7.5 20.2z' fill='%23fff' stroke='%23222' stroke-width='1.4' stroke-linejoin='round'/%3E%3Cpath d='M2.5 21.5l1.3-5 3.7 3.7z' fill='%23222'/%3E%3C/svg%3E") 2 22,default}.board[data-cursor=hand] .board-scroller{cursor:pointer}.board[data-cursor=system] .board-scroller{cursor:default}.board[data-cursor=dot] .board-scroller{cursor:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Ccircle cx='5' cy='5' r='2.6' fill='%23222' stroke='%23fff' stroke-width='1.2'/%3E%3C/svg%3E") 5 5,default}.board[data-cursor=pen] .board-scroller[data-tool=eraser]{cursor:none}.board .board-scroller[data-tool=select]{cursor:default}.board .board-scroller[data-tool=pan]{cursor:grab}.board .board-scroller[data-tool=text]{cursor:text}.board .board-scroller[data-tool=space]{cursor:row-resize}.board .board-scroller.no-pointer,.board .board-scroller.no-pointer *{cursor:none!important}.text-edit{position:absolute;z-index:5}.text-clip{outline:1px dashed #2383e2;outline-offset:2px;background:#fffffff0}.text-clip.cut{overflow:hidden}.text-grip{position:absolute;width:22px;height:22px;margin:-11px 0 0 -11px;border:2px solid #f5a623;border-radius:50%;background:#fff9;box-sizing:border-box;cursor:ew-resize;touch-action:none}.text-grip:before{content:"";position:absolute;inset:-11px;border-radius:50%}.text-grip.tl{left:-3px;top:-3px}.text-grip.tr{left:calc(100% + 3px);top:-3px}.text-grip.bl{left:-3px;top:calc(100% + 3px)}.text-grip.br{left:calc(100% + 3px);top:calc(100% + 3px)}.mobile .text-grip{width:30px;height:30px;margin:-15px 0 0 -15px}.text-edge{position:absolute;cursor:move;touch-action:none}.text-edge.top{left:8px;right:8px;top:-9px;height:10px}.text-edge.bottom{left:8px;right:8px;bottom:-9px;height:10px}.text-edge.left{top:8px;bottom:8px;left:-9px;width:10px}.text-edge.right{top:8px;bottom:8px;right:-9px;width:10px}.mobile .text-edge.top,.mobile .text-edge.bottom{height:16px}.mobile .text-edge.top{top:-15px}.mobile .text-edge.bottom{bottom:-15px}.mobile .text-edge.left,.mobile .text-edge.right{width:16px}.mobile .text-edge.left{left:-15px}.mobile .text-edge.right{right:-15px}.text-move{position:absolute;left:50%;top:-34px;width:26px;height:26px;margin-left:-13px;display:flex;align-items:center;justify-content:center;border:2px solid #2383e2;border-radius:50%;background:#fff;color:#2383e2;box-sizing:border-box;cursor:move;touch-action:none;box-shadow:0 1px 4px #0003}.text-move svg{width:16px;height:16px}.mobile .text-move{width:40px;height:40px;margin-left:-20px;top:-48px}.mobile .text-move svg{width:22px;height:22px}.text-box{display:block;width:100%;box-sizing:content-box;margin:0;padding:0;border:none;outline:none;background:transparent;resize:none;overflow:hidden;white-space:pre-wrap;overflow-wrap:break-word;z-index:5}.board-spacer{pointer-events:none}.selection-bar{position:absolute;top:10px;left:50%;transform:translate(-50%);display:flex;flex-wrap:wrap;justify-content:center;width:max-content;max-width:calc(100% - 16px);gap:4px;padding:4px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 6px 18px #14283c26;z-index:6}.selection-bar button{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border:none;border-radius:6px;background:transparent;cursor:pointer}.sel-length{display:flex;align-items:center;gap:6px;padding:0 8px;white-space:nowrap}.sel-length input{width:64px;padding:4px 6px;font:inherit;border:1px solid var(--line);border-radius:6px;text-align:right}.mobile .sel-length input{height:36px;font-size:16px}.selection-bar button svg{width:18px;height:18px}.selection-bar button:hover{background:#f1f1ef}.press-menu{position:fixed;z-index:40;transform:translate(-50%,calc(-100% - 28px));display:flex;padding:4px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 4px 16px #0000002e}.press-menu.below{transform:translate(-50%,28px)}.press-menu button{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 18px;border:none;border-radius:8px;background:transparent;font:inherit;font-size:15px;cursor:pointer}.press-menu button svg{width:18px;height:18px}.press-menu button:active{background:#f1f1ef}.turn-bar{align-items:center}.turn-label{font-size:12px;color:var(--muted);padding:0 2px 0 4px}.turn-sep{width:1px;align-self:stretch;margin:2px;background:var(--line)}.turn-slider{width:120px;accent-color:var(--accent)}.mobile .turn-slider{height:32px}.selection-bar .turn-done{color:var(--accent);font-weight:600}.selection-bar .turn-done:disabled{color:var(--muted);cursor:default}.lift-say{padding:0 8px;font-size:14px;max-width:520px}.mobile .turn-bar button{min-height:44px}.hint,.toast{position:absolute;bottom:18px;padding:8px 14px;border-radius:18px;font-size:13px;pointer-events:none;z-index:6}.hint{left:18px;background:#1e3246d1;color:#fff;animation:hint-out 5s forwards}@keyframes hint-out{90%{opacity:1}to{opacity:0}}.toast{right:24px;background:#37352f;color:#fff}.geo-amount{position:absolute;left:18px;bottom:58px;z-index:6;display:flex;align-items:center;gap:8px;padding:6px 8px 6px 14px;border-radius:18px;background:#fff;box-shadow:0 2px 10px #0000002e;font-size:13px}.geo-amount input{width:72px;padding:4px 6px;font:inherit;font-size:16px;border:1px solid var(--line);border-radius:8px}.mobile .geo-amount input{height:40px}.dialog-backdrop{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#141e2859;z-index:50;padding-bottom:var(--math-keys, 0px)}.dialog{width:440px;max-width:calc(100vw - 32px);max-height:calc(100vh - 40px - var(--math-keys, 0px));display:flex;flex-direction:column;background:#fff;border-radius:12px;box-shadow:0 20px 60px #0000004d;-webkit-user-select:text;user-select:text;font-size:14px}.dialog.wide{width:760px}.dialog-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;font-size:16px;font-weight:600;border-bottom:1px solid var(--line)}.dialog-close{border:none;background:transparent;font-size:22px;line-height:1;cursor:pointer;color:var(--muted)}.dialog-body{padding:14px 16px;overflow-y:auto;display:flex;flex-direction:column;gap:8px}.dialog-body>label,.graph-form>label{font-weight:600;margin-top:4px}.dialog-body input:not([type]),.dialog-body textarea,.dialog-body input[type=text]{width:100%;padding:7px 9px;border:1px solid #dfdfdd;border-radius:6px;outline:none}.dialog-body input:focus,.dialog-body textarea:focus{border-color:var(--accent)}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;padding:10px 0 14px;margin-bottom:-14px;position:sticky;bottom:-14px;z-index:1;background:#fff}.dialog button:not(.dialog-close):not(.paper-choice):not(.link):not(.swatch):not(.kit-editor *,.fx-main *,.fx-side *){padding:6px 14px;border:1px solid #dfdfdd;border-radius:6px;background:#fff;cursor:pointer}.dialog button.primary.primary.primary.primary.primary{background:var(--accent);border-color:var(--accent);color:#fff}.dialog button.primary:disabled{opacity:.5;cursor:default}.dialog .row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.dialog .check{display:inline-flex;align-items:center;gap:6px;font-weight:400}.dialog .check.gd-sub{margin-left:24px}.dialog .check.gd-sub.off{opacity:.55}.dialog .help{color:var(--muted);font-size:12px;margin:2px 0}.dialog .error{color:#eb5757;margin:0}.link{border:none;background:none;color:var(--accent);cursor:pointer;padding:2px 0;text-align:left}.dialog.wide:has(.graph-dialog){width:980px}.graph-dialog{display:flex;gap:20px;align-items:flex-start}.graph-form{flex:1;display:flex;flex-direction:column;gap:12px;min-width:0}.graph-form section{display:flex;flex-direction:column;gap:8px;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fbfbfa}.graph-form h4{margin:0;font-size:13px;font-weight:600;color:var(--ink);text-transform:uppercase;letter-spacing:.04em}.graph-form .help{margin:0}.fn-row{display:grid;grid-template-columns:30px auto 1fr 30px;align-items:center;gap:6px}.fn-row input[type=color]{width:28px;height:28px;padding:0;border:none;background:none;cursor:pointer}.graph-form input.bad{border-color:#e57373;background:#fff5f5}.fn-prefix{font-family:AxMath,"Cambria Math",Times New Roman,serif;font-size:18px;white-space:nowrap}.dialog button.fn-prefix.fn-prefix{padding:2px 4px;min-height:32px;border:none;border-bottom:1px dashed #b0bec5;border-radius:4px;background:transparent;color:inherit;font-size:18px}.dialog button.fn-prefix.fn-prefix:hover{background:#f1f1ef}.mobile .dialog button.fn-prefix.fn-prefix{min-height:44px;min-width:44px}.fn-error{grid-column:3 / 5;color:#eb5757;font-size:12px}.fn-row.fn-main{grid-template-columns:30px auto 1fr auto 30px}.fn-main .fn-error{grid-column:3 / 6}.fn-main input.fn-whole{grid-column:2 / 4}.fn-lim{grid-column:2 / 6}.fn-tools{display:flex;gap:6px}.fn-row.oxyz-row{grid-template-columns:30px 1fr 30px}.oxyz-row .fn-error{grid-column:2 / 4}.oxyz-row input:not([type]){font-family:AxMath,"Cambria Math",Segoe UI,serif;font-size:16px}.oxyz-help{display:flex;flex-direction:column;gap:5px;margin-top:6px;font-size:12.5px;line-height:1.45}.oxyz-help code{font-family:AxMath,"Cambria Math",serif;font-size:13.5px;color:var(--accent);background:#efefed;border-radius:4px;padding:0 4px}.oxyz-views{display:flex;flex-wrap:wrap;gap:6px}.oxyz-preview{cursor:grab}.oxyz-stage{position:relative;align-self:center;max-width:100%}.oxyz-stage canvas{display:block}.oxyz-zoom{position:absolute;right:10px;bottom:10px;display:flex;align-items:center;padding:2px;border:1px solid #e9e9e7;border-radius:999px;background:#fffffff0;box-shadow:0 1px #2383e20a,0 6px 16px -10px #2383e273}.dialog .oxyz-zoom button.oxyz-zoom-btn.oxyz-zoom-btn.oxyz-zoom-btn.oxyz-zoom-btn{min-width:28px;height:28px;min-height:0;padding:0;border:none;border-radius:999px;background:transparent;box-shadow:none;color:#37474f;font-size:17px;font-weight:500;line-height:1}.dialog .oxyz-zoom button.oxyz-zoom-btn.oxyz-zoom-btn.oxyz-zoom-btn.oxyz-zoom-btn:hover:not(:disabled){background:#f1f1ef;color:var(--accent)}.dialog .oxyz-zoom button.oxyz-zoom-btn.oxyz-zoom-btn.oxyz-zoom-btn.oxyz-zoom-btn:disabled{opacity:.3;cursor:default}.dialog .oxyz-zoom button.oxyz-zoom-btn.oxyz-zoom-value.oxyz-zoom-value.oxyz-zoom-value{min-width:46px;margin:0 2px;border-radius:6px;color:var(--muted);font-size:12px;font-variant-numeric:tabular-nums}.oxyz-zoom-value:before,.oxyz-zoom-value:after{content:"";position:absolute;top:9px;bottom:9px;width:1px;background:#e9e9e7}.oxyz-zoom-value{position:relative}.oxyz-zoom-value:before{left:-2px}.oxyz-zoom-value:after{right:-2px}.mobile .dialog .oxyz-zoom button.oxyz-zoom-btn.oxyz-zoom-btn.oxyz-zoom-btn.oxyz-zoom-btn{min-width:44px;height:44px}.oxyz-preview:active{cursor:grabbing}@media(max-width:600px){.fn-main .fn-tools{grid-column:2 / 6;grid-row:2;justify-content:flex-end}}.dialog button.fn-lim-toggle.fn-lim-toggle{padding:4px 8px;min-height:30px;font-size:12px;color:var(--muted)}.dialog button.fn-lim-toggle.fn-lim-toggle.on{background:#f1f1ef;border-color:#a8cff0;color:var(--accent)}.mobile .dialog button.fn-lim-toggle.fn-lim-toggle{min-height:44px}.dialog button.fn-dash-toggle.fn-dash-toggle{display:inline-flex;align-items:center;justify-content:center;min-width:36px;color:#4a4a4a}.dialog button.fn-dash-toggle svg{width:18px;height:18px}.dialog .fn-row button.fn-dash-toggle.fn-dash-toggle.on{background:#f1f1ef;border-color:#a8cff0;color:var(--accent)}.range-grid.axis-names span{font-family:inherit;font-style:normal;font-size:13px}@media(max-width:560px){.range-grid.axis-names{grid-template-columns:1fr}}.ineq-row>input:not([type=color]){grid-column:2 / 4}.ineq-row .fn-error{grid-column:2 / 5}.dialog button.icon-button.icon-button.icon-button{width:30px;height:30px;padding:0;color:var(--muted)}.dialog button.icon-button.icon-button.icon-button:hover{color:#eb5757;border-color:#e57373}.pt-card{display:flex;flex-direction:column;gap:6px;padding:8px;border:1px solid var(--line);border-radius:8px;background:#fff}.pt-main{display:grid;grid-template-columns:12px 52px auto 1fr auto 1fr 30px;align-items:center;gap:6px}.pt-main input{padding:5px 7px!important;min-width:0}.pt-name{font-family:AxMath,"Cambria Math",serif;font-style:italic;font-size:16px;text-align:center}.pt-dot{width:12px;height:12px;border-radius:50%;box-shadow:0 0 0 2px #fff,0 0 0 3px #cfd8dc}.pt-options{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding-left:18px;font-size:13px}.pt-options select{max-width:210px;padding:4px 6px;border:1px solid #dfdfdd;border-radius:6px;background:#fff}.chips{display:flex;flex-wrap:wrap;gap:6px}.dialog button.chip.chip.chip{padding:4px 12px;border-radius:999px;font-size:13px}.dialog button.chip.chip.chip:first-child{background:var(--accent);border-color:var(--accent);color:#fff}.dialog button.chip.chip:not(:first-child):hover:not(:disabled){background:#f1f1ef;border-color:#a8cff0;color:var(--accent)}.dialog button.chip:disabled{opacity:.5;cursor:default}.range-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px 12px}.range-grid span{display:flex;align-items:center;gap:6px;white-space:nowrap;font-family:AxMath,"Cambria Math",serif;font-style:italic;font-size:15px}.range-grid input{width:100%;padding:5px 7px;border:1px solid #dfdfdd;border-radius:6px;font-style:normal}.graph-side{position:sticky;top:0;display:flex;flex-direction:column;gap:6px;width:442px;flex-shrink:0}.graph-form .gd-fns{background:#fff;border-color:#e9e9e7;box-shadow:0 1px #2383e20a,0 10px 22px -16px #2383e259}.graph-dialog .link.gd-fit.on{font-weight:700}.gd-fn-help summary{cursor:pointer;font-size:12.5px;color:var(--muted);list-style-position:inside;min-height:24px}.mobile .gd-fn-help summary{min-height:44px;line-height:44px}.gd-fn-help .help{font-size:12px;line-height:1.45;margin-top:4px}.gd-tabs{display:flex;flex-wrap:wrap;gap:6px}.dialog .gd-tabs button.gd-tab.gd-tab.gd-tab{display:inline-flex;align-items:center;gap:6px;padding:5px 12px 5px 10px;min-height:34px;border-radius:999px;border:1px solid #e9e9e7;background:#fff;color:#1a1a1a;font-size:13px;font-weight:500}.dialog .gd-tabs button.gd-tab.gd-tab.gd-tab:hover{border-color:#a8cff0;background:#f1f1ef}.dialog .gd-tabs button.gd-tab.gd-tab.gd-tab.on{background:var(--accent);border-color:var(--accent);color:#fff;box-shadow:0 6px 14px -8px #2383e2b3}.gd-tab-icon{font-family:AxMath,"Cambria Math",serif;font-size:15px;line-height:1;min-width:14px;text-align:center;opacity:.8}.gd-count{min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;line-height:18px;text-align:center;box-sizing:border-box}.gd-tab.on .gd-count{background:#fff;color:var(--accent)}.mobile .dialog .gd-tabs button.gd-tab.gd-tab.gd-tab.gd-tab{min-height:44px;padding:8px 14px 8px 12px}.graph-form .gd-panel{border-left:3px solid var(--accent);animation:gd-in .16s ease-out}@keyframes gd-in{0%{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}@media(prefers-reduced-motion:reduce){.graph-form .gd-panel{animation:none}}.graph-dialog .graph-form h4,.graph-dialog .link,.graph-dialog .gd-fn-help summary{color:#1a1a1a}.graph-dialog .link{font-weight:500}.graph-dialog .link:hover:not(:disabled){text-decoration:underline}.graph-dialog .link:disabled{color:#9a9a9a}.graph-preview[data-dark]{background:#2e4a35}.graph-preview{border:1px solid var(--line);border-radius:10px;cursor:crosshair;box-shadow:0 2px 10px #14283c14}@media(max-width:900px){.graph-dialog{flex-direction:column-reverse;align-items:stretch}.graph-side{position:static;width:auto;align-items:center}.graph-preview{max-width:100%;height:auto!important}}.dialog.wide.vt-dialog{width:760px}.vt-preview{display:block;max-width:100%;height:auto!important;margin:0 auto 4px;border:1px solid var(--line);border-radius:10px}.vt-make{display:flex;gap:8px;align-items:center}.vt-fn{flex:1;display:flex;align-items:center;gap:6px;min-width:0}.vt-fn input{flex:1;min-width:0}.vt-scroll{overflow-x:auto;overflow-y:hidden;-webkit-overflow-scrolling:touch}.vt-edit{border-collapse:collapse}.vt-edit th{padding:4px 8px;font-family:AxMath,"Cambria Math",serif;font-size:17px;font-weight:400;text-align:center}.vt-edit td{padding:3px;vertical-align:top}.vt-edit td input,.vt-edit td select{width:92px;padding:4px 6px;border:1px solid #dfdfdd;border-radius:6px;background:#fff;font:inherit}.vt-edit td input+input,.vt-edit td input+.vt-ydef{display:block;margin-top:4px}.vt-edit td.vt-gap{background:#f7f6f3}.vt-edit td.vt-gap select{width:86px}.vt-edit .vt-remove td{text-align:center;font-size:12px}.spin-form{display:flex;flex-direction:column;gap:8px}.spin-card{display:flex;flex-direction:column;gap:6px;padding:8px;border:1px solid var(--line);border-radius:8px;background:#fff}.spin-card label,.spin-card>span{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.spin-card select{flex:1;min-width:0}.spin-card input[type=color]{width:28px;height:28px;padding:0;border:none;background:none;cursor:pointer}.dialog-body .spin-card .spin-range input:not([type]){width:80px;flex:0 0 80px}.spin-form label,.spin-form>span{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.spin-form select{flex:1;min-width:0}.dialog-body .spin-range input:not([type]){width:80px;flex:0 0 80px}.dialog .spin-axis button.spin-axis-btn{min-width:52px;font:italic 16px AxMath,"Cambria Math",serif}.dialog .spin-views button.spin-view-btn{padding:4px 10px;font-size:13px}.dialog .spin-views button.spin-view-btn.spin-view-btn.spin-view-btn.on,.dialog .spin-axis button.spin-axis-btn.spin-axis-btn.spin-axis-btn.on{background:var(--accent);border-color:var(--accent);color:#fff}.spin-angle input[type=range]{flex:1;min-width:120px}.mobile .spin-axis button,.mobile .spin-actions button{min-height:44px}.vt-second{display:inline-flex;align-items:center;gap:6px;margin-top:6px;cursor:pointer}.mobile .vt-second{min-height:44px}.mobile .vt-second input{width:22px;height:22px}.mobile .vt-edit td input,.mobile .vt-edit td select{min-height:40px}@media(max-width:600px){.vt-make{flex-wrap:wrap}}.formula-field{display:block;width:100%;min-height:70px;padding:8px;font-size:30px;border:1px solid #dfdfdd;border-radius:8px}.latex{min-height:60px;font-family:Consolas,monospace;font-size:13px;resize:vertical}.paper-choices{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.paper-choices.cursors{grid-template-columns:repeat(2,1fr)}.dialog.settings{width:1180px}.paper-choice svg{width:28px;height:28px;margin:6px 0 2px}.paper-choice{display:flex;flex-direction:column;align-items:center;gap:6px;padding:8px;border:2px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}.paper-choice.on{border-color:var(--accent)}.paper-choice span{width:54px;height:70px;border:1px solid #dfdfdd;background:var(--paper, #fff)}.paper-choice.ruled span{background:repeating-linear-gradient(var(--paper, #fff) 0 9px,var(--rule, #d3d1cb) 9px 10px)}.paper-choice.grid span{background:repeating-linear-gradient(var(--paper, #fff) 0 9px,var(--rule, #dfdfdd) 9px 10px),repeating-linear-gradient(90deg,transparent 0 9px,var(--rule, #dfdfdd) 9px 10px);background-blend-mode:multiply}.paper-choice.dots span{background:radial-gradient(var(--rule, #c7c6c2) 1px,transparent 1.5px) 0 0 / 10px 10px,var(--paper, #fff)}@media(max-width:480px){.paper-choices{grid-template-columns:repeat(2,1fr)}}.own-paper{position:relative}.own-paper .paper-choice{width:100%;height:100%}.paper-choice img{width:54px;height:76px;object-fit:cover;border:1px solid #cfd8dc;pointer-events:none}.dialog button.own-paper-del.own-paper-del.own-paper-del{position:absolute;top:-8px;right:-8px;width:28px;height:28px;padding:0;border-radius:50%;border:1px solid #f3c4c4;background:#fff;color:#eb5757;font-size:18px;line-height:1}.mobile .dialog button.own-paper-del.own-paper-del.own-paper-del{width:36px;height:36px}.paper-colors{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:8px}.paper-colors .swatch{width:40px;height:40px}.paper-colors .swatch span{width:26px;height:26px;border:1px solid #b0bec5}.paper-colors .swatch.custom span{border-color:#fff;box-shadow:0 0 0 1px #b0bec5}.paper-colors input.hex-color{width:96px;height:40px;padding:0 8px;font-family:ui-monospace,Consolas,monospace;font-size:15px}html:not(.mobile) .paper-colors input.hex-color{display:none}.mobile .paper-colors .swatch{width:44px}.toolbar.two-rows{flex-wrap:wrap;height:auto;padding:4px 8px;row-gap:2px}.two-rows .tb-group.tools{order:3;width:100%;margin-left:0;overflow-x:auto;scrollbar-width:none;border-top:1px solid var(--line);padding-top:2px}.two-rows .tb-group.tools::-webkit-scrollbar{display:none}.two-rows .tb-group.tools>*{flex-shrink:0}html:not(.mobile) .two-rows .tb-group.tools{flex-wrap:wrap;overflow-x:visible;row-gap:2px}@media(min-width:700px){.mobile .two-rows .tb-group.tools{flex-wrap:wrap;overflow-x:visible;row-gap:2px}}.mobile .tb{min-width:44px;height:44px}.mobile .swatch{width:34px;height:44px}@media(max-width:600px){.tb-title{display:none}}.library{position:fixed;inset:0;z-index:40;display:flex;flex-direction:column;background:#f7f6f3;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);user-select:none;-webkit-user-select:none}.dropdown-menu .laser-colors{display:flex;flex-wrap:wrap;gap:4px;padding:4px 10px;max-width:250px}.dropdown-menu .laser-colors button{width:30px;height:30px;padding:0;justify-content:center;border-radius:50%}.dropdown-menu .laser-colors button span{width:16px;height:16px;border-radius:50%;display:block}.dropdown-menu .laser-colors button.on{background:#d3e5ef;box-shadow:0 0 0 2px var(--accent) inset}.dropdown-menu .laser-colors .laser-auto span{box-shadow:0 0 0 2px #fff,0 0 0 3.5px #9aa4ad}.dropdown-menu .laser-glow{display:flex;flex-direction:column;gap:4px;padding:4px 14px 10px;font-size:13px}.dropdown-menu .laser-glow input{width:220px;max-width:100%;accent-color:var(--accent)}.mobile .dropdown-menu .laser-colors button{width:44px;height:44px}.mobile .dropdown-menu .laser-glow input{height:32px}.selection-bar button.on{background:#d3e5ef}.sel-pen-pop{position:absolute;top:calc(100% + 6px);left:50%;transform:translate(-50%);max-height:calc(100vh - 160px);overflow-y:auto;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px #14283c2e}.pt-style{width:270px;max-width:calc(100vw - 32px);padding:4px 10px 10px}.pt-style .pp-width{margin-left:0;margin-right:0}.pt-colors{display:grid;grid-template-columns:repeat(6,1fr);gap:7px}.selection-bar .pt-colors button,.pt-colors .pp-other{width:100%;height:32px;min-width:0;padding:0;border-radius:8px;box-shadow:inset 0 0 0 1px #00000024}.selection-bar .pt-colors button.on,.pt-colors .pp-other.on{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--accent)}.pt-shapes{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.pt-shapes.two{grid-template-columns:repeat(2,1fr)}.selection-bar .pt-shapes button{flex-direction:column;justify-content:center;gap:2px;min-height:52px;padding:4px;border:1px solid var(--line);border-radius:8px;font-size:12px}.selection-bar .pt-shapes button.on{border-color:var(--accent);color:var(--accent)}.selection-bar button.pt-reset{width:100%;justify-content:center;margin-top:10px;border:1px solid var(--line);border-radius:8px}.selection-bar button.pt-reset:disabled{opacity:.5}.ai-ask{display:inline-flex;align-items:center;gap:6px;flex-shrink:0;height:36px;padding:0 14px 0 11px;margin-left:4px;border:none;border-radius:999px;background:#f1f1ef;color:#37352f;font-size:14px;font-weight:500;cursor:pointer;transition:background-color .15s,color .15s}.ai-ask svg{width:17px;height:17px;fill:currentColor}.ai-ask:hover{background:#e9e9e7}.ai-ask.on{background:#d3e5ef;color:#2383e2}.ai-ask:focus-visible,.sel-ask-ai:focus-visible{outline:2px solid #2383e2;outline-offset:2px}.selection-bar button.sel-ask-ai{color:#2383e2;font-weight:600}.sel-ask-ai svg{width:15px;height:15px;fill:currentColor}@media(max-width:640px){.ai-ask,.two-rows .ai-ask{position:fixed;right:16px;bottom:calc(76px + env(safe-area-inset-bottom));z-index:30;width:52px;height:52px;margin:0;padding:0;justify-content:center;background:#37352f;color:#fff;box-shadow:0 4px 14px #0f0f0f38}.ai-ask:hover{background:#1f1e1b}.ai-ask.on{display:none}.ai-ask svg{width:22px;height:22px}.ai-ask span{display:none}}.two-rows .ai-ask{margin-left:auto}:root{--shell: #f7f6f3;--card: #ffffff;--card-line: #e9e9e7;--hover: #f1f1ef;--ink-soft: #5f5e5b;--sel: #e7f3f8;--sel-line: #c9e0f5;--sel-ink: #0b6bcb;--radius-card: 14px;--card-shadow: 0 1px 2px rgba(15, 15, 15, .04), 0 2px 8px rgba(15, 15, 15, .04);--pop-shadow: 0 0 0 1px rgba(15, 15, 15, .05), 0 3px 6px rgba(15, 15, 15, .08), 0 9px 24px rgba(15, 15, 15, .16)}.app{background:var(--shell)}.toolbar{margin:8px 8px 0;height:56px;padding:0 8px;gap:6px;background:var(--card);border:1px solid var(--card-line);border-radius:var(--radius-card);box-shadow:var(--card-shadow)}.toolbar.two-rows{padding:4px 8px}.two-rows .tb-group.tools{margin-top:2px;padding-top:4px;border-top:1px dashed var(--card-line)}.tb{min-width:36px;height:36px;padding:0 6px;border-radius:9px;color:#37352f;transition:background-color .12s,color .12s,box-shadow .12s}.tb:hover:not(:disabled){background:var(--hover)}.tb.on,.tb.on:hover{background:var(--sel);color:#2383e2;box-shadow:inset 0 0 0 1px var(--sel-line)}.tb svg{stroke-width:1.9}.mobile .tb{min-width:42px;height:42px}.sep{height:22px;margin:0 3px;background:var(--card-line)}.tb-palette,.mobile .tb-palette{height:38px;padding:0 3px;margin:0 2px;border-radius:11px;background:var(--shell);border:1px solid var(--card-line)}.swatch{width:28px;height:32px;border-radius:8px}.swatch:hover{background:var(--card)}.swatch.on:after{display:none}.swatch.on span{box-shadow:0 0 0 2px var(--shell),0 0 0 3.5px #2383e2}.tb-title{gap:4px}.tb-title .dot{display:none}.tb-title .zoom-button{height:28px;padding:0 10px;border:1px solid var(--card-line);border-radius:999px;background:var(--shell);color:var(--ink-soft);font-size:12.5px;font-variant-numeric:tabular-nums}.tb-title .zoom-button:hover{background:var(--hover);color:#37352f}.tb-title>.dropdown:first-child .zoom-button:before{content:"Trang ";color:#9b9a97}.dropdown-menu{padding:6px;border:none;border-radius:12px;box-shadow:var(--pop-shadow)}.dropdown-menu button{padding:7px 10px;border-radius:7px}.dropdown-menu button:hover:not(:disabled){background:var(--hover)}.dropdown-menu button.checked{background:var(--sel);color:var(--sel-ink);font-weight:500}.dropdown-menu hr{margin:6px 4px;border:none;border-top:1px solid var(--card-line)}.menu-heading{padding:8px 10px 4px;color:#9b9a97;font-size:11px;letter-spacing:.06em}.work{gap:8px;padding:8px}.board-wrap{overflow:hidden;border:1px solid var(--card-line);border-radius:var(--radius-card);background:var(--shell);box-shadow:var(--card-shadow)}@media(max-width:600px){.work{gap:6px;padding:6px}.toolbar{margin:6px 6px 0}}.selection-bar,.text-bar{padding:4px;border:none;border-radius:12px;box-shadow:var(--pop-shadow)}.selection-bar button{height:32px;padding:0 10px;border-radius:8px;color:#37352f}.selection-bar button:hover{background:var(--hover)}.selection-bar button.sel-ask-ai{background:var(--sel);color:var(--sel-ink)}.selection-bar button.sel-ask-ai:hover{background:#d3e5ef}.hint,.toast{border-radius:10px;background:#37352f;color:#fff;box-shadow:0 6px 18px #0f0f0f33}.dialog-backdrop{background:#0f0f0f6b;backdrop-filter:blur(2px)}.dialog{border-radius:16px;box-shadow:0 0 0 1px #0f0f0f0d,0 24px 64px #0f0f0f47}.dialog-head{padding:16px 20px 12px;border-bottom:none;font-size:17px;color:#37352f}.dialog-close{width:30px;height:30px;border-radius:8px;font-size:20px}.dialog-close:hover{background:var(--hover);color:#37352f}.dialog-body{padding:4px 20px 16px}.dialog-body input:not([type]),.dialog-body textarea,.dialog-body input[type=text]{padding:8px 10px;border-color:#dfdfdd;border-radius:8px;transition:border-color .12s,box-shadow .12s}.dialog-body input:focus,.dialog-body textarea:focus{border-color:#a8cff0;box-shadow:0 0 0 3px #2383e21f}.dialog-actions{padding:12px 0 16px}.dialog button:not(.dialog-close):not(.paper-choice):not(.link):not(.swatch):not(.kit-editor *){padding:7px 14px;border-color:#dfdfdd;border-radius:8px;color:#37352f;transition:background-color .12s}.dialog button:not(.dialog-close):not(.paper-choice):not(.link):not(.swatch):not(.kit-editor *):hover:not(:disabled){background:var(--hover)}.dialog button.primary.primary.primary.primary.primary{background:#37352f;border-color:#37352f;color:#fff}.dialog button.primary.primary.primary.primary.primary:hover:not(:disabled){background:#1f1e1b}.library{background:var(--shell)}.doc-meta{display:flex;flex-direction:column;justify-content:center;min-width:0;margin-right:6px;line-height:1.2}.doc-name{max-width:230px;padding:1px 5px;border:1px solid transparent;border-radius:6px;background:transparent;color:#37352f;font-size:14px;font-weight:500;text-overflow:ellipsis}.doc-name:not([readonly]):hover{border-color:var(--card-line)}.doc-name:focus{outline:none;border-color:#2383e2;background:#fff;text-overflow:clip}.save-state{display:inline-flex;align-items:center;gap:4px;padding:0 6px;color:#787774;font-size:11.5px;white-space:nowrap}.save-state svg{width:13px;height:13px;fill:none;stroke:#0f9d58;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}.save-state.error{color:#eb5757}.save-state button{padding:0;border:none;background:none;color:inherit;font:inherit;font-weight:600;text-decoration:underline;cursor:pointer}.save-spin{width:10px;height:10px;border:1.5px solid #dfdfdd;border-top-color:#787774;border-radius:50%;animation:save-spin .8s linear infinite}@keyframes save-spin{to{transform:rotate(360deg)}}@media(max-width:640px){.doc-meta{display:none}}.board-bar{display:flex;align-items:center;gap:8px;flex-shrink:0;min-height:46px;margin:0 8px 8px;padding:5px;background:var(--card);border:1px solid var(--card-line);border-radius:12px;box-shadow:var(--card-shadow)}.board-bar svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.board-tabs{display:flex;align-items:center;flex:1;gap:4px;min-width:0;overflow-x:auto;scrollbar-width:none}.board-tabs::-webkit-scrollbar{display:none}.board-tab{display:flex;align-items:center;flex-shrink:0;max-width:220px;height:34px;border-radius:9px;color:var(--ink-soft);transition:background-color .12s}.board-tab:hover{background:var(--hover)}.board-tab.on{background:var(--sel);color:var(--sel-ink);box-shadow:inset 0 0 0 1px var(--sel-line)}.board-tab-name{display:flex;align-items:center;gap:6px;min-width:0;height:100%;padding:0 4px 0 12px;border:none;background:none;color:inherit;font:inherit;font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer}.board-tab-dot{flex-shrink:0;width:6px;height:6px;border-radius:50%;background:#cb912f}.board-tab-input{height:28px;margin:0 2px 0 6px;padding:0 6px;border:1px solid #2383e2;border-radius:7px;background:#fff;color:#37352f;font:inherit;font-size:13px;font-weight:500;outline:none}.board-tab-close{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:24px;height:24px;margin-right:5px;border:none;border-radius:6px;background:none;color:inherit;opacity:0;cursor:pointer}.board-tab-close svg{width:13px;height:13px}.board-tab:hover .board-tab-close,.board-tab.on .board-tab-close,.mobile .board-tab-close{opacity:.65}.board-tab-close:hover{opacity:1;background:#0f0f0f0f}.board-add,.board-zoom>button{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:32px;height:32px;border:none;border-radius:8px;background:none;color:var(--ink-soft);cursor:pointer}.board-add:hover,.board-zoom>button:hover{background:var(--hover);color:#37352f}.board-zoom{display:flex;align-items:center;gap:2px;flex-shrink:0;padding-left:8px;border-left:1px solid var(--card-line)}.board-zoom .zoom-button{min-width:58px;height:30px;border:1px solid var(--card-line);border-radius:8px;background:var(--shell);color:var(--ink-soft);font-size:12.5px;font-variant-numeric:tabular-nums}.board-zoom .zoom-button:hover{background:var(--hover);color:#37352f}.mobile .board-tab{height:40px}@media(max-width:640px){.board-bar{margin:0 6px 6px;gap:4px}.board-zoom>button:nth-child(1),.board-zoom>button:nth-child(3){display:none}}.tb-label{display:none}.tool-rail{display:flex;flex-direction:column;flex-shrink:0;width:204px;min-height:0;background:var(--card);border:1px solid var(--card-line);border-radius:var(--radius-card);box-shadow:var(--card-shadow);overflow:hidden}.tool-rail .tb-group.tools{display:flex;flex:1;flex-direction:column;align-items:stretch;gap:2px;min-height:0;margin:0;padding:8px;overflow-x:hidden;overflow-y:auto;scrollbar-width:thin}.tool-rail .dropdown{display:block}.tool-rail .tb{display:flex;width:100%;min-width:0;height:36px;padding:0 10px;gap:10px;justify-content:flex-start}.tool-rail .tb>:first-child{flex-shrink:0}.tool-rail .tb-label{display:block;flex:1;order:1;min-width:0;overflow:hidden;font-size:13px;font-weight:500;text-align:left;text-overflow:ellipsis;white-space:nowrap}.tool-rail .tb>svg[width="12"]{order:2;flex-shrink:0;opacity:.45;transform:rotate(-90deg)}.tool-rail .sep{width:auto;height:1px;margin:6px 4px}.tool-rail .tb-palette,.mobile .tool-rail .tb-palette{flex-wrap:wrap;justify-content:flex-start;height:auto;margin:2px 0;padding:3px}.tool-rail .swatch{width:27px;height:30px}.rail-toggle{display:flex;align-items:center;gap:10px;flex-shrink:0;height:40px;padding:0 18px;border:none;border-top:1px solid var(--card-line);background:transparent;color:var(--ink-soft);font:inherit;font-size:12.5px;cursor:pointer}.rail-toggle:hover{background:var(--hover);color:#37352f}.rail-toggle svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.tool-rail.compact{width:76px}.tool-rail.compact .tb-label,.tool-rail.compact .rail-toggle span{display:none}.tool-rail.compact .tb{justify-content:center;gap:2px;padding:0 4px}.tool-rail.compact .tb>svg[width="12"]{display:none}.tool-rail.compact .tb-palette{justify-content:center}.tool-rail.compact .rail-toggle{justify-content:center;padding:0}@media(max-width:640px){.tool-rail,.tool-rail.compact{width:64px}.tool-rail .tb-label,.tool-rail .rail-toggle span,.tool-rail .tb>svg[width="12"]{display:none}.tool-rail .tb{justify-content:center;padding:0 4px}.tool-rail .tb-palette{justify-content:center}}.tool-rail .tools>*{flex-shrink:0}.tool-rail:not(.compact) .tb-palette:before{content:attr(aria-label);display:block;width:100%;padding:2px 5px 1px;color:#9b9a97;font-size:11px;font-weight:500}@media(max-width:640px){.tool-rail .tb-palette:before{display:none}}.tool-rail.compact .swatch{width:24px}.board-zoom{gap:2px;height:40px;padding:0 4px;border-left:none;border-radius:999px;background:#f1f1ef}.board-zoom>button,.board-add{width:34px;height:34px;border-radius:999px;color:#404040}.board-zoom>button:hover,.board-add:hover{background:#0000000f;color:#404040}.board-zoom>button svg,.board-add svg{width:18px;height:18px;stroke-width:2}.board-zoom .zoom-button{min-width:56px;height:30px;border:none;border-radius:999px;background:transparent;color:#404040;font-size:13px}.board-zoom .zoom-button:hover{background:#0000000f;color:#404040}.board-tab{background:var(--shell);box-shadow:inset 0 0 0 1px var(--card-line);color:#5f5e5b}.board-tab:hover{background:#efefed;box-shadow:inset 0 0 0 1px #dfdfdd}.board-tab.on,.board-tab.on:hover{background:var(--sel);color:var(--sel-ink);box-shadow:inset 0 0 0 1px var(--sel-line),0 1px 2px #2383e21f}.board-tabs{gap:6px;padding:1px}.tool-rail .tb-group.tools{scrollbar-width:thin;scrollbar-color:transparent transparent}.tool-rail:hover .tb-group.tools{scrollbar-color:rgba(55,53,47,.22) transparent}.tool-rail .tb-group.tools::-webkit-scrollbar{width:8px}.tool-rail .tb-group.tools::-webkit-scrollbar-track{background:transparent}.tool-rail .tb-group.tools::-webkit-scrollbar-thumb{border:2px solid transparent;border-radius:999px;background:transparent;background-clip:padding-box}.tool-rail:hover .tb-group.tools::-webkit-scrollbar-thumb{background-color:#37352f38}.tool-rail .tb-group.tools::-webkit-scrollbar-thumb:hover{background-color:#37352f61}input[type=range]{-webkit-appearance:none;appearance:none;height:20px;background:transparent;cursor:pointer}input[type=range]:focus-visible{outline:none}input[type=range]::-webkit-slider-runnable-track{height:6px;border-radius:999px;background:linear-gradient(to right,#a8cff0 var(--fill, 50%),#e1e6ec var(--fill, 50%))}input[type=range]::-moz-range-track{height:6px;border-radius:999px;background:#e1e6ec}input[type=range]::-moz-range-progress{height:6px;border-radius:999px;background:#a8cff0}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:22px;height:14px;margin-top:-4px;border:none;border-radius:999px;background:#2383e2;box-shadow:0 1px 3px #3c404366}input[type=range]::-moz-range-thumb{width:22px;height:14px;border:none;border-radius:999px;background:#2383e2;box-shadow:0 1px 3px #3c404366}input[type=range]:focus-visible::-webkit-slider-thumb{box-shadow:0 0 0 3px #2383e24d}.mode-pill{display:flex;align-items:center;gap:2px;height:44px;margin-left:8px;padding:0 4px;border-radius:999px;background:#f1f1ef}.mode-pill .tb{height:36px;min-width:36px;padding:0 12px 0 10px;gap:6px;border-radius:999px;color:#404040;box-shadow:none}.mode-pill .tb:hover:not(:disabled){background:#0000000f}.mode-pill .tb.on,.mode-pill .tb.on:hover{background:#fff;color:#2383e2;box-shadow:0 1px 2px #0f0f0f1a,inset 0 0 0 1px #c9e0f5}.mode-pill .tb svg{width:18px;height:18px}.mode-pill .tb>svg[width="12"]{order:2;width:12px;height:12px;opacity:.55}.mode-pill .tb-label{display:inline;order:1;font-size:13px;font-weight:500;white-space:nowrap}@media(max-width:900px){.mode-pill .tb-label{display:none}.mode-pill .tb{padding:0 8px}}.tool-rail .tb-group.tools{padding:8px 12px 8px 8px;scrollbar-gutter:stable}.tool-rail .tb-palette{gap:4px}.tool-rail .tb-palette[aria-label="Bút dạ quang"]{gap:8px;padding-left:6px}.board-tab{position:relative;touch-action:pan-x}.board-tabs.sorting,.board-tabs.sorting .board-tab-name{cursor:grabbing}.board-tab.dragging{opacity:.45}.board-tab.drop-before:before,.board-tab.drop-after:after{content:"";position:absolute;top:3px;bottom:3px;width:3px;border-radius:2px;background:#2383e2}.board-tab.drop-before:before{left:-5px}.board-tab.drop-after:after{right:-5px}.board-tab-close{width:28px;height:28px;margin-right:4px;border-radius:7px}.board-tab-close svg{width:16px;height:16px}.board-tabs{padding:1px 6px}.board-zoom .zoom-button{display:inline-flex;align-items:center;justify-content:space-between;gap:6px;min-width:72px;height:34px;padding:0 10px;border-radius:999px;font-size:13px;font-variant-numeric:tabular-nums}.board-zoom .zoom-button.open,.board-zoom .zoom-button.open:hover{background:#d3e5ef;color:#2383e2}.board-zoom .zoom-chevron{width:14px;height:14px;fill:none;stroke:#737373;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.board-zoom .zoom-button.open .zoom-chevron{stroke:currentColor}.board-zoom .dropdown-menu{min-width:200px;font-size:13px}.board-zoom .dropdown-menu button{padding:6px 10px}.board-zoom .dropdown-menu button.checked{background:transparent;color:#2383e2;font-weight:500}.board-zoom .dropdown-menu button.checked:after{content:"✓";margin-left:auto;color:#2383e2}.ai-ask svg.ai-ask-icon{fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}.ai-ask svg.ai-ask-icon .ai-ask-spark{fill:currentColor;stroke:none}.pill-sep{flex-shrink:0;width:1px;height:18px;margin:0 3px;background:#dcdbd8}.swatch.width-dot span{box-shadow:inset 0 0 0 1px #0000002e}.swatch.width-dot.on span{box-shadow:inset 0 0 0 1px #0000002e,0 0 0 2px var(--shell),0 0 0 3.5px #2383e2}.zoom-chip{display:inline-flex;align-items:center;gap:6px;flex-shrink:0;height:40px;padding:0 14px 0 12px;border:none;border-radius:999px;background:#f1f1ef;color:#404040;font:inherit;font-size:13px;white-space:nowrap;cursor:pointer}.zoom-chip:hover{background:#e9e9e7}.zoom-chip.on,.zoom-chip.on:hover{background:#d3e5ef;color:#2383e2}.zoom-chip:focus-visible{outline:none;box-shadow:inset 0 0 0 2px #2383e266}.zoom-chip svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}@media(max-width:640px){.zoom-chip{width:40px;padding:0;justify-content:center}.zoom-chip span{display:none}}.ui-tip{position:fixed;z-index:10000;top:0;left:0;max-width:256px;padding:4px 10px;border-radius:6px;background:#0f172a;color:#f8fafc;font:12px/1.45 Inter,system-ui,sans-serif;text-align:center;white-space:normal;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a;pointer-events:none;opacity:0;visibility:hidden;transform:translateY(-4px) scale(.95);transition:opacity .12s ease,transform .12s ease,visibility 0s linear .12s}.ui-tip[data-side=top]{transform:translateY(4px) scale(.95)}.ui-tip.on{opacity:1;visibility:visible;transform:none;transition:opacity .12s ease,transform .12s ease}.toolbar.two-rows{flex-wrap:wrap;height:auto;padding:6px 8px;row-gap:6px}.toolbar.two-rows>.tb-group:first-child{display:contents}.two-rows .home-link{order:1}.two-rows .doc-meta{display:flex;order:2;flex:1 1 0;min-width:0}.two-rows .doc-name{max-width:100%}.two-rows .mode-pill{order:3}.toolbar.two-rows .tb-title{display:block;order:4;flex:0 0 100%;height:0;margin:-3px 0}.two-rows .file-pill{order:6}.two-rows .full-button{order:7;margin-left:auto}.toolbar.float-ai .ai-ask{position:fixed;right:16px;bottom:calc(76px + env(safe-area-inset-bottom));z-index:30;width:52px;height:52px;margin:0;padding:0;justify-content:center;background:#37352f;color:#fff;box-shadow:0 4px 14px #0f0f0f38}.toolbar.float-ai .ai-ask:hover{background:#1f1e1b}.toolbar.float-ai .ai-ask.on{display:none}.toolbar.float-ai .ai-ask svg{width:22px;height:22px}.toolbar.float-ai .ai-ask span{display:none}@media(max-height:500px){.save-state{display:none}}.board-zoom .dropdown-menu button.checked:after{content:none}.zoom-mark{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;width:16px;height:16px;margin-right:8px;color:#9b9a97}.zoom-mark svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.board-zoom .dropdown-menu button.checked .zoom-mark{color:#2383e2}.board-zoom .dropdown-menu{min-width:0}.board-zoom .dropdown-menu button{justify-content:flex-start;padding-right:18px}.pill-label{font-size:13px;font-weight:500;white-space:nowrap}.tight .file-pill .tb{padding:0 8px}.full-button{display:inline-flex;align-items:center;gap:6px;flex-shrink:0;height:36px;padding:0 14px 0 11px;border:none;border-radius:999px;background:#f1f1ef;color:#37352f;font:inherit;cursor:pointer;transition:background-color .15s}.full-button:hover{background:#e9e9e7}.full-button:focus-visible{outline:2px solid #2383e2;outline-offset:2px}.full-button svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.tight .full-button{width:36px;padding:0;justify-content:center}.file-pill .tb svg{width:18px;height:18px}.doc-meta{flex:none;width:160px}.doc-name{width:100%;max-width:none;box-sizing:border-box;overflow:hidden;text-overflow:ellipsis}.save-state{max-width:100%;overflow:hidden}.two-rows .doc-meta{flex:1 1 0;width:auto}.icon-pair{display:inline-flex;align-items:center;gap:1px}.paper-choice .icon-pair svg{width:22px;height:22px}.paper-choice span.icon-pair{width:auto;height:auto;margin:0;padding:0;border:0;border-radius:0;background:none;box-shadow:none}.settings-menu{width:340px;max-width:calc(100vw - 32px)}.dropdown-menu button.settings-group{display:flex;align-items:center;gap:10px;width:100%;padding:9px 10px;color:#37352f;font-size:14px}.dropdown-menu button.settings-group>svg:first-child{width:18px;height:18px;flex-shrink:0;color:#5f5e5b;transform:none}.dropdown-menu button.settings-group.depth-2{padding:7px 10px;font-size:13px}.settings-group-label{flex:1;min-width:0;text-align:left}.dropdown-menu button.settings-group>svg:last-child{margin-left:auto;transform:rotate(-90deg);transition:transform .15s;color:#9b9a97}.dropdown-menu button.settings-group.open>svg:last-child{transform:none}.dropdown-menu button.settings-group.open{font-weight:600}.settings-menu .menu-group-items{margin:2px 0 6px 18px}.settings-menu .dropdown-menu button.eraser-choice,.settings-menu button.eraser-choice{min-width:0;width:100%}.settings-fields{display:flex;flex-direction:column;gap:10px;padding:6px 8px 8px;font-size:13px;color:#37352f}.settings-fields>label:not(.check){display:flex;flex-direction:column;gap:6px}.settings-fields input[type=range]{width:100%}.settings-fields label.check{display:flex;align-items:flex-start;gap:8px;line-height:1.4}.settings-fields label.check input{margin-top:2px;flex-shrink:0}.settings-caption{margin:4px 8px 2px;font-size:12px;color:#787774}.settings-fields .settings-caption{margin:0}.settings-menu .paper-colors{display:flex;flex-wrap:wrap;gap:2px;padding:4px 4px 6px}.settings-menu .paper-choices.settings-papers{grid-template-columns:repeat(4,1fr);gap:6px;padding:4px 4px 6px}.dropdown-menu .settings-papers button.paper-choice{display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px 2px;font-size:11.5px}.dropdown-menu button.settings-link{width:100%;color:#2383e2;font-size:13px}.file-pill .tb:disabled{color:#404040;opacity:.4}.file-pill .tb:disabled:hover{background:transparent}.tool-rail .tb.subject-head{font-weight:500}.tool-rail .tb.subject-head .subject-chevron{width:14px;height:14px;margin-left:auto;fill:none;stroke:#9b9a97;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .15s}.tool-rail .tb.subject-head.open .subject-chevron{transform:rotate(90deg)}.tool-rail.compact .tb.subject-head .subject-chevron{display:none}.tool-rail .tb.subject-head.open{background:var(--hover)}.subject-tools{display:flex;flex-direction:column;gap:2px;flex-shrink:0;margin:2px 0 6px 14px;padding-left:6px;border-left:2px solid var(--card-line)}.tool-rail.compact .subject-tools{margin:2px 0 6px;padding:2px 0;border-left:none;border-radius:8px;background:var(--wash, #f7f6f3)}.subject-tools>*{flex-shrink:0}.dialog.wide.kit-dialog{width:1040px}.kit-dialog .dialog-body{display:flex;flex-direction:column;min-height:0}.kit-body{display:grid;grid-template-columns:minmax(340px,1fr) minmax(320px,1fr);gap:16px;min-height:0;height:min(620px,calc(100vh - 190px))}.kit-editor{display:flex;flex-direction:column;gap:10px;min-height:0;overflow-y:auto;padding:2px 6px 8px 2px}.kit-preview{display:flex;align-items:center;justify-content:center;min-height:0;overflow:hidden;padding:12px;border-radius:12px;background:#f7f6f3}.kit-preview canvas{background:#fff;border-radius:6px;box-shadow:0 1px 3px #0f0f0f14}@media(max-width:820px){.kit-body{grid-template-columns:1fr;grid-template-rows:auto minmax(200px,40vh);height:auto;max-height:calc(100vh - 170px);overflow-y:auto}.kit-editor{overflow:visible}}.kit-row{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:flex-end}.kit-row>.kit-field{flex:1 1 160px}.kit-field{display:flex;flex-direction:column;gap:4px;font-size:12.5px;color:#5f5e5b}.kit-field.small{flex:0 0 110px}.kit-field input,.kit-area textarea,.kit-grid input{width:100%;box-sizing:border-box;padding:6px 9px;border:1px solid #dfdfdd;border-radius:7px;background:#fff;color:#37352f;font:inherit;font-size:13.5px}.kit-field input:focus,.kit-area textarea:focus,.kit-grid input:focus{outline:none;border-color:#2383e2;box-shadow:0 0 0 3px #2383e226}.kit-area{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:#5f5e5b}.kit-area textarea{min-height:160px;resize:vertical;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:13px;line-height:1.55}.kit-area small,.kit-help{margin:0;font-size:12px;line-height:1.5;color:#787774}.kit-area code,.kit-help code{padding:0 4px;border-radius:4px;background:#f1f1ef;font-size:11.5px}.kit-check{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#37352f;cursor:pointer}.kit-choice{display:flex;flex-direction:column;gap:5px}.kit-choice-label{font-size:12.5px;color:#5f5e5b}.kit-choice-buttons{display:flex;flex-wrap:wrap;gap:4px}.kit-dialog .kit-choice-buttons button{padding:5px 10px;border:1px solid #e9e9e7;border-radius:999px;background:#fff;color:#37352f;font:inherit;font-size:12.5px;cursor:pointer}.kit-dialog .kit-choice-buttons button:hover{background:#f7f6f3}.kit-dialog .kit-choice-buttons button.on{border-color:#c9e0f5;background:#e7f3f8;color:#0b6bcb;font-weight:500}.kit-presets{display:flex;flex-wrap:wrap;align-items:center;gap:4px;padding-bottom:8px;border-bottom:1px solid #f1f1ef;font-size:12.5px;color:#787774}.kit-dialog .kit-presets button{padding:4px 9px;border:none;border-radius:7px;background:#f1f1ef;color:#37352f;font:inherit;font-size:12.5px;cursor:pointer}.kit-dialog .kit-presets button:hover{background:#e9e9e7}.kit-grid-wrap{max-width:100%;overflow-x:auto}.kit-grid{border-collapse:separate;border-spacing:3px}.kit-grid td{padding:0;min-width:82px}.kit-grid td.head input,.kit-grid tr.head input{background:#f7f6f3;font-weight:600}.kit-grid .kit-grid-del,.kit-grid .kit-grid-foot td{min-width:0;text-align:center}.kit-dialog .kit-grid button{width:22px;height:22px;padding:0;border:none;border-radius:6px;background:transparent;color:#9b9a97;font-size:15px;line-height:1;cursor:pointer}.kit-dialog .kit-grid button:hover:not(:disabled){background:#fbe4e4;color:#d44c47}.kit-dialog .kit-grid button:disabled{opacity:.3;cursor:default}.kit-grid-actions{display:flex;gap:8px;margin-top:6px}.kit-dialog .kit-grid-actions button,.kit-dialog .kit-link{padding:4px 2px;border:none;background:none;color:#2383e2;font:inherit;font-size:13px;cursor:pointer}.kit-series{display:flex;flex-direction:column;gap:6px}.kit-series-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px}.kit-series-row>span{min-width:90px;font-weight:500}.tool-rail .tb.subject-head .subject-chevron{order:2}.kit-symbols{display:grid;grid-template-columns:repeat(auto-fill,minmax(92px,1fr));gap:6px}.kit-dialog .kit-symbols button{display:flex;flex-direction:column;align-items:center;gap:4px;padding:8px 4px 6px;border:1px solid #e9e9e7;border-radius:10px;background:#fff;color:#37352f;font:inherit;font-size:11.5px;line-height:1.25;text-align:center;cursor:pointer}.kit-dialog .kit-symbols button:hover{background:#f7f6f3}.kit-dialog .kit-symbols button.on{border-color:#2383e2;background:#e7f3f8;box-shadow:0 0 0 1px #2383e2}.kit-inserts{display:flex;flex-wrap:wrap;gap:4px}.kit-dialog .kit-inserts button{padding:4px 9px;border:1px solid #e9e9e7;border-radius:7px;background:#fff;color:#37352f;font:inherit;font-size:12.5px;cursor:pointer}.kit-dialog .kit-inserts button:hover{background:#f7f6f3}.kit-mol-canvas{max-width:100%;border:1px solid #e9e9e7;border-radius:10px;cursor:crosshair;touch-action:none}.kit-dialog .kit-link:disabled{opacity:.4;cursor:default}.kit-editor>*{flex-shrink:0}.two-rows .full-button{order:3;margin-left:0}.two-rows .file-pill{flex:1 1 100%;min-width:0;overflow-x:auto;scrollbar-width:none;justify-content:space-between}.two-rows .file-pill::-webkit-scrollbar{display:none}.two-rows .file-pill>*{flex-shrink:0}@media(max-width:640px){.two-rows .file-pill{padding:0 2px;gap:0}.two-rows .file-pill .tb,.mobile .two-rows .file-pill .tb{min-width:30px;padding:0 5px}.two-rows .file-pill .tb>svg[width="12"]{display:none}.two-rows .file-pill .pill-sep{margin:0 1px}}.kit-mol-canvas{height:auto!important}.rail-tabs{display:flex;flex-shrink:0;gap:2px;margin:8px 8px 0;padding:3px;border-radius:10px;background:#f1f1ef}.rail-tabs button{display:inline-flex;flex:1 1 0;align-items:center;justify-content:center;gap:6px;min-width:0;height:30px;padding:0 6px;border:none;border-radius:8px;background:transparent;color:#5f5e5b;font:inherit;font-size:12.5px;font-weight:500;white-space:nowrap;cursor:pointer}.rail-tabs button span{overflow:hidden;text-overflow:ellipsis}.rail-tabs button:hover{color:#37352f}.rail-tabs button.on{background:#fff;color:#37352f;box-shadow:0 1px 2px #0f0f0f1a}.rail-tabs button svg{flex-shrink:0}.tool-rail.compact .rail-tabs{flex-direction:column;margin:6px 6px 0}.tool-rail.compact .rail-tabs button span{display:none}.tool-rail .tb.rail-search-icon{flex-shrink:0;justify-content:center;margin:6px 6px 0;width:auto}.rail-search-icon svg,.kit-search>svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}.kit-search{position:relative;display:flex;flex-shrink:0;align-items:center;margin:8px 8px 2px;color:#9b9a97}.kit-search>svg{position:absolute;left:10px;pointer-events:none}.kit-search input{width:100%;height:36px;box-sizing:border-box;padding:0 32px 0 33px;border:1px solid #e9e9e7;border-radius:9px;background:#fff;color:#37352f;font:inherit;font-size:13.5px}.kit-search input::-webkit-search-cancel-button{display:none}.kit-search input:focus{outline:none;border-color:#2383e2;box-shadow:0 0 0 3px #2383e226}.kit-search input::placeholder{color:#9b9a97}.kit-search-clear{position:absolute;right:6px;width:24px;height:24px;padding:0;border:none;border-radius:6px;background:transparent;color:#9b9a97;font-size:17px;line-height:1;cursor:pointer}.kit-search-clear:hover{background:#f1f1ef;color:#37352f}.kit-results{display:flex;flex-direction:column;gap:1px}.kit-results-count{margin:2px 10px 4px;font-size:11.5px;color:#9b9a97}.kit-result{display:flex;flex-shrink:0;align-items:flex-start;gap:10px;width:100%;padding:7px 10px;border:none;border-radius:8px;background:transparent;color:#37352f;font:inherit;text-align:left;cursor:pointer}.kit-result.active{background:#e7f3f8}.kit-result-icon{display:inline-flex;flex-shrink:0;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;background:#f1f1ef;color:#5f5e5b}.kit-result.active .kit-result-icon{background:#fff;color:#2383e2}.kit-result-text{display:flex;flex-direction:column;min-width:0;gap:1px}.kit-result-label{font-size:13px;font-weight:500;line-height:1.35}.kit-result-label mark{padding:0;background:transparent;color:#0b6bcb;font-weight:700}.kit-result-crumb{overflow:hidden;font-size:11.5px;line-height:1.35;color:#787774;text-overflow:ellipsis;white-space:nowrap}.kit-search-empty{padding:14px 10px;font-size:13px;color:#37352f}.kit-search-empty p{margin:0 0 6px}.kit-search-empty .muted{color:#787774;font-size:12.5px}.kit-search-suggest{display:flex;flex-wrap:wrap;gap:4px}.kit-search-suggest button{padding:4px 9px;border:1px solid #e9e9e7;border-radius:999px;background:#fff;color:#37352f;font:inherit;font-size:12px;cursor:pointer}.kit-search-suggest button:hover{background:#f7f6f3}.tool-rail:not(.compact) .rail-tabs button svg{display:none}.rail-tabs button{font-size:13px}.toolbar{position:relative;z-index:30}.tool-rail{position:relative;z-index:28}.board-bar{position:relative;z-index:25}.tool-rail.compact .rail-tabs button{height:34px}.pen-adjust-icon{position:relative;display:inline-flex;flex-shrink:0}.pen-adjust-dot{position:absolute;right:-3px;bottom:-2px;width:10px;height:10px;border:2px solid #fff;border-radius:50%;box-shadow:0 0 0 1px #0000001f}.tool-rail .tb.pen-adjust .subject-chevron{margin-left:4px}.pen-adjust-body .tb-palette{margin:2px 0}.toolbar .file-pill .tb-label{display:inline}.tight .pill-label.low,.tighter .pill-label,.toolbar.tighter .file-pill .tb-label{display:none}.slim .doc-meta{width:110px}.slim .save-state{display:block;overflow:hidden;text-overflow:ellipsis}.slim .save-state svg{vertical-align:-2px;margin-right:3px}.slim .file-pill .tb,.mobile .slim .file-pill .tb{padding:0 6px;gap:5px}.toolbar.slim:not(.float-ai) .ai-ask{width:36px;padding:0;justify-content:center}.toolbar.slim:not(.float-ai) .ai-ask span{display:none}.slim .file-pill .pill-sep{margin:0 1px}.pen-panel{width:300px;padding:6px 8px 8px}.pp-preview{position:relative;overflow:hidden;border-radius:12px;background:#fff;border:1px solid #e9e9e7;background-image:radial-gradient(#e3e2df 1px,transparent 1.2px);background-size:14px 14px}.pp-preview .pp-sample{display:block;margin:2px auto 0;border:none!important;background:transparent!important}.pp-preview-tag{position:absolute;left:8px;top:6px;padding:1px 7px;border-radius:999px;background:#ffffffeb;color:#5f5e5b;font-size:11.5px;font-weight:500}.pen-panel .pp-label{margin:12px 2px 6px;font-size:11.5px;font-weight:600;letter-spacing:.02em;color:#9b9a97;text-transform:uppercase}.pen-panel .pp-label b{text-transform:none;letter-spacing:0;color:#2383e2}.pp-kinds{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:0;border:none;background:transparent}.dropdown-menu .pp-kinds button{display:flex;flex-direction:row;align-items:center;justify-content:flex-start;gap:6px;width:auto;height:34px;padding:0 8px;border-radius:8px;border:1px solid #e9e9e7;background:#fff}.dropdown-menu .pp-kinds button.on{border-color:#2383e2;background:#e7f3f8;box-shadow:none;color:#0b6bcb}.pp-kind-name{overflow:hidden;font-size:12px;white-space:nowrap;text-overflow:ellipsis}.dropdown-menu .pp-kinds button.pp-hl span{left:8px;right:auto;width:18px;bottom:9px}.pp-colors{grid-template-columns:repeat(10,1fr);gap:6px 4px}.dropdown-menu .pp-colors button,.pen-panel .pp-other{width:22px;height:22px;justify-self:center;border-radius:50%}.pp-more{margin-top:10px;border-top:1px solid #f1f1ef;padding-top:6px}.pp-more summary{cursor:pointer;font-size:12.5px;color:#5f5e5b;list-style-position:inside}.graph-dialog{flex-direction:row-reverse;gap:22px}.graph-side{width:470px}.graph-side .graph-preview{border-radius:14px;border:1px solid #e9e9e7;background:#fff}.graph-form .gd-tabs{order:-1;flex-wrap:nowrap;gap:2px;margin:0 0 2px;padding:3px;overflow-x:auto;scrollbar-width:none;border-radius:10px;background:#f1f1ef}.graph-form .gd-tabs::-webkit-scrollbar{display:none}.dialog .gd-tabs button.gd-tab.gd-tab.gd-tab{flex-shrink:0;min-height:30px;padding:0 10px;border:none;border-radius:8px;background:transparent;color:#5f5e5b;font-size:12.5px}.dialog .gd-tabs button.gd-tab.gd-tab.gd-tab:hover{background:#fff9;color:#37352f}.dialog .gd-tabs button.gd-tab.gd-tab.gd-tab.on,.dialog .gd-tabs button.gd-tab.gd-tab.gd-tab.on:hover{background:#fff;color:#37352f;box-shadow:0 1px 2px #0f0f0f1a}.dialog .gd-tabs .gd-tab-icon{opacity:.7}.graph-form .gd-fns{padding:4px 2px 2px;border:none!important;border-radius:0;background:transparent!important;box-shadow:none!important}.graph-form .gd-fns>h4,.graph-form .gd-panel>h4{margin:0 0 8px;font-size:13px;font-weight:600;letter-spacing:0;text-transform:none;color:#37352f}.graph-form .gd-panel{border-radius:12px;border:1px solid #e9e9e7;background:#fbfbfa}@media(max-width:860px){.graph-dialog{flex-direction:column}.graph-side{position:static;width:100%}}.dialog.vt-dialog{width:1000px}.vt-dialog .dialog-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);grid-auto-rows:min-content;column-gap:20px;row-gap:8px;align-items:start}.vt-dialog .dialog-body>*{grid-column:1}.vt-dialog .dialog-body>.vt-preview{grid-column:2;grid-row:1 / span 8;position:sticky;top:0;padding:14px;border-radius:14px;background:#f7f6f3}.vt-dialog .dialog-body>.dialog-actions{grid-column:1 / -1}.vt-dialog .dialog-body>.help{padding:8px 10px;border-radius:8px;background:#f7f6f3;font-size:11.5px;line-height:1.5}@media(max-width:860px){.vt-dialog .dialog-body{display:block}}.dropdown-menu.by-section{display:grid!important;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px 6px;width:min(640px,calc(100vw - 16px))!important}.dropdown-menu.by-section>.menu-stack{order:10;grid-column:1 / -1;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0 6px;margin-top:4px;padding-top:6px;border-top:1px solid #f1f1ef}.dropdown-menu.by-section .menu-section{border:none!important}.dropdown-menu.by-section .menu-heading{display:inline-block;margin:6px 6px 4px;padding:1px 8px;border-radius:999px;background:#f1f1ef;color:#5f5e5b;font-size:11px;font-weight:600;letter-spacing:0;text-transform:none}.board-wrap .hint{top:auto;bottom:16px;left:16px;max-width:calc(100% - 32px);padding:8px 14px 8px 36px;border:1px solid #c9e0f5;border-radius:10px;background:#e7f3f8 no-repeat 12px 50% / 16px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232383e2' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M12 16v-4M12 8h.01'/%3E%3C/svg%3E");color:#0b4f8a;box-shadow:0 4px 14px #0f0f0f14}.graph-form .gd-tabs{flex-wrap:wrap;overflow:visible}.dropdown-menu .pp-kinds button.pp-hl .pp-kind-name{position:static;width:auto;height:auto;border-radius:0;background:none!important;opacity:1}.vt-dialog .dialog-body{grid-template-columns:minmax(0,1.3fr) minmax(0,.9fr)}.dropdown-menu.columns:not(.by-section){columns:auto!important;column-rule:none;display:flex;flex-direction:column;gap:2px;width:min(600px,calc(100vw - 16px))!important;padding:8px 10px 10px}.dropdown-menu.columns:not(.by-section) .menu-section{display:flex;flex-wrap:wrap;align-items:center;gap:5px;padding:6px 0 4px;border:none!important}.dropdown-menu.columns:not(.by-section) .menu-section+.menu-section{border-top:1px solid #f1f1ef!important}.dropdown-menu.columns:not(.by-section) .menu-heading{flex-basis:100%;margin:0 0 2px;padding:0;background:none;color:#9b9a97;font-size:11.5px;font-weight:600;letter-spacing:0;text-transform:none}.dropdown-menu.columns:not(.by-section) .menu-section>button,.dropdown-menu.columns:not(.by-section) .shape-sides>button{width:auto;min-height:30px;padding:4px 11px;border:1px solid #e9e9e7;border-radius:999px;background:#fff;font-size:12.5px;line-height:1.2}.dropdown-menu.columns:not(.by-section) .menu-section>button:hover,.dropdown-menu.columns:not(.by-section) .shape-sides>button:hover{background:#f7f6f3}.dropdown-menu.columns:not(.by-section) .menu-section>button.checked{border-color:#c9e0f5;background:#e7f3f8;color:#0b6bcb}.dropdown-menu.columns:not(.by-section) .shape-sides{display:inline-flex;align-items:center;gap:4px;width:auto}.dropdown-menu.columns:not(.by-section) .shape-sides input{width:46px;height:30px}.tl-list{display:grid;grid-template-columns:repeat(3,minmax(0,158px));column-gap:6px;padding:2px 2px 4px}.tl-group{display:contents}.tl-heading{grid-column:1 / -1;margin:8px 6px 3px;color:#9b9a97;font-size:11.5px;font-weight:600}.tl-group:first-child .tl-heading{margin-top:2px}.dropdown-menu .tl-list button.tl-choice{flex-direction:row;justify-content:flex-start;gap:9px;min-height:32px;padding:5px 8px;border-radius:8px;font-size:13px;line-height:1.25;text-align:left;white-space:nowrap}.dropdown-menu .tl-list button.tl-choice>svg{flex:none;width:18px;height:18px}.dropdown-menu .tl-list button.tl-choice.checked{background:#e7f3f8;color:#0b6bcb}@media(max-width:520px){.tl-list{grid-template-columns:repeat(2,minmax(0,1fr))}}.opt-panel{display:flex;flex-direction:column;gap:6px;width:268px;padding:2px}.dropdown-menu .opt-panel button{width:auto}.dropdown-menu .opt-panel .opt-card,.er-partial{display:flex;align-items:flex-start;justify-content:flex-start;gap:10px;padding:9px 10px;border:1px solid #ececea;border-radius:10px;background:#fff;text-align:left;white-space:normal}.er-partial{flex-direction:column;gap:8px}.dropdown-menu .opt-panel .opt-card.checked,.er-partial.checked{border-color:#c9e0f5;background:#f3f9fd}.dropdown-menu .opt-panel .opt-head{display:flex;align-items:flex-start;gap:10px;padding:0;background:none;text-align:left;white-space:normal}.dropdown-menu .opt-panel .opt-head:hover{background:none}.opt-panel svg{flex:none;width:18px;height:18px;margin-top:1px}.opt-text{display:flex;flex-direction:column;gap:2px;min-width:0}.opt-text b{font-size:13px;font-weight:600}.opt-text small{color:#8b8a86;font-size:11.5px;line-height:1.35}.opt-seg{display:grid;grid-auto-columns:1fr;grid-auto-flow:column;gap:4px;width:100%;padding:3px;border-radius:8px;background:#f4f4f2}.dropdown-menu .opt-panel .opt-seg button{justify-content:center;gap:6px;min-height:28px;padding:3px 6px;border-radius:6px;background:transparent;color:#55534e;font-size:12px}.dropdown-menu .opt-panel .opt-seg button.checked{background:#fff;color:#0b6bcb;box-shadow:0 1px 2px #0f0f0f1f}.er-dot{flex:none;border-radius:50%;background:currentColor}.fx-dialog .fx-layout{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:16px;align-items:start}.fx-main{display:flex;flex-direction:column;gap:10px;min-width:0}.fx-templates{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));gap:6px}.fx-templates button{display:flex;align-items:center;gap:7px;min-height:34px;padding:4px 8px;border:1px solid #ececea;border-radius:8px;background:#fff;color:#55534e;font-size:12px;text-align:left;white-space:nowrap}.fx-templates button:hover{border-color:#c9e0f5;background:#f3f9fd;color:#0b6bcb}.fx-face{flex:none;min-width:22px;color:#37352f;font-family:Times New Roman,serif;font-size:15px;font-style:italic;text-align:center}.fx-latex summary{cursor:pointer;color:#6f6e69;font-size:12.5px;font-weight:600}.fx-latex[open] summary{margin-bottom:6px}.fx-latex .latex{width:100%}.fx-side{display:flex;flex-direction:column;gap:14px;padding:12px;border-radius:10px;background:#f7f7f5}.fx-field{display:flex;flex-direction:column;gap:7px}.fx-label{display:flex;justify-content:space-between;color:#6f6e69;font-size:12px;font-weight:600}.fx-label b{color:#37352f;font-variant-numeric:tabular-nums}.fx-field input[type=range]{width:100%}.fx-colors{display:flex;flex-wrap:wrap;gap:5px}.fx-dialog .fx-colors button,.fx-custom{flex:none;min-width:0;width:24px;height:24px;padding:0;border:2px solid #fff;border-radius:50%;background:var(--dot);box-shadow:0 0 0 1px #dcdcd9}.fx-dialog .fx-colors button.checked{box-shadow:0 0 0 2px #2383e2}.fx-custom{position:relative;overflow:hidden;background:conic-gradient(#d44c47,#dfab01,#448361,#2383e2,#9065b0,#d44c47);cursor:pointer}.fx-custom input{position:absolute;inset:0;opacity:0;cursor:pointer}.fx-toggle{display:flex;align-items:flex-start;gap:8px;color:#37352f;font-size:12.5px;line-height:1.35}.fx-toggle input{margin-top:2px}@media(max-width:640px){.fx-dialog .fx-layout{grid-template-columns:minmax(0,1fr)}}.ink-panel{width:300px}.laser-panel{width:100%;min-width:236px;margin-bottom:6px}.opt-note{margin:0 4px;color:#8b8a86;font-size:11.5px;line-height:1.35}.fill-panel{width:272px;margin-bottom:4px}.fill-presets{display:flex;gap:4px;margin:2px 0 6px}.dropdown-menu .fill-presets button{flex:1;justify-content:center;min-height:26px;padding:2px 0;border:1px solid #ececea;border-radius:6px;background:#fff;font-size:11.5px;font-variant-numeric:tabular-nums}.dropdown-menu .fill-presets button.checked{border-color:#c9e0f5;background:#e7f3f8;color:#0b6bcb}@media(max-width:640px){.tool-rail:not(.compact){width:204px}.tool-rail:not(.compact) .tb-label{display:block}.tool-rail:not(.compact) .rail-toggle span{display:inline}.tool-rail:not(.compact) .tb>svg[width="12"]{display:revert}.tool-rail:not(.compact) .tb{justify-content:flex-start;padding:0 10px}.tool-rail:not(.compact) .tb-palette{justify-content:flex-start}}@font-face{font-display:"swap";font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(./KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(./KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(./KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(./KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(./KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(./KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(./KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(./KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(./KaTeX_Main-Regular-B22Nviop.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(./KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(./KaTeX_Math-Italic-t53AETM-.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(./KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(./KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(./KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(./KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(./KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(./KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(./KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2")}@font-face{font-display:"swap";font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(./KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2")}:root{--ML__static-fonts:true}.ML__container{min-height:auto!important;--_hue:var(--hue,212);--_placeholder-color:var(--placeholder-color,hsl(var(--_hue),40%,49%));--_placeholder-opacity:var(--placeholder-opacity,.4);--_text-font-family:var(--text-font-family,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Roboto","Oxygen","Ubuntu","Cantarell","Fira Sans","Droid Sans","Helvetica Neue",sans-serif)}.ML__sr-only{height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px;clip:rect(0,0,0,0);border:0;clip-path:inset(50%);white-space:nowrap}.ML__base,.ML__is-inline{display:inline-block}.ML__base{border:0;box-sizing:content-box;cursor:text;font-family:inherit;font-style:inherit;font-weight:inherit;margin:0;outline:0;padding:0;position:relative;text-decoration:none;vertical-align:baseline;visibility:inherit;width:min-content}.ML__strut,.ML__strut--bottom{display:inline-block;min-height:.5em}.ML__small-delim{font-family:KaTeX_Main}.ML__text{font-family:var(--_text-font-family);white-space:pre}.ML__cmr{font-family:KaTeX_Main;font-style:normal}.ML__mathit{font-family:KaTeX_Math;font-style:italic}.ML__mathbf{font-family:KaTeX_Main;font-weight:700}.ML__mathbfit,.lcGreek.ML__mathbf{font-family:KaTeX_Math}.ML__mathbfit{font-style:italic;font-weight:700}.ML__ams,.ML__bb{font-family:KaTeX_AMS}.ML__cal{font-family:KaTeX_Caligraphic}.ML__frak{font-family:KaTeX_Fraktur}.ML__tt{font-family:KaTeX_Typewriter}.ML__script{font-family:KaTeX_Script}.ML__sans{font-family:KaTeX_SansSerif}.ML__series_el,.ML__series_ul{font-weight:100}.ML__series_l{font-weight:200}.ML__series_sl{font-weight:300}.ML__series_sb{font-weight:500}.ML__bold{font-weight:700}.ML__series_eb{font-weight:800}.ML__series_ub{font-weight:900}.ML__series_uc{font-stretch:ultra-condensed}.ML__series_ec{font-stretch:extra-condensed}.ML__series_c{font-stretch:condensed}.ML__series_sc{font-stretch:semi-condensed}.ML__series_sx{font-stretch:semi-expanded}.ML__series_x{font-stretch:expanded}.ML__series_ex{font-stretch:extra-expanded}.ML__series_ux{font-stretch:ultra-expanded}.ML__it{font-style:italic}.ML__shape_ol{-webkit-text-stroke:1px #000;text-stroke:1px #000;color:transparent}.ML__shape_sc{font-variant:small-caps}.ML__shape_sl{font-style:oblique}.ML__emph{color:#bc2612}.ML__emph .ML__emph{color:#0c7f99}.ML__highlight{background:#edd1b0;color:#007cb2}.ML__center{text-align:center}.ML__left{text-align:left}.ML__right{text-align:right}.ML__label_padding{padding:0 .5em}.ML__frac-line{min-height:1px;width:100%}.ML__frac-line:after{background:currentColor;box-sizing:content-box;content:"";display:block;forced-color-adjust:preserve-parent-color;margin-top:max(-1px,-.04em);min-height:max(1px,.04em);-webkit-print-color-adjust:exact;print-color-adjust:exact;transform:translate(0)}@media(forced-colors:active){.ML__frac-line{min-height:0px}}.ML__sqrt,.ML__sqrt-sign{display:inline-block}.ML__sqrt-sign{position:relative}.ML__sqrt-line{display:inline-block;height:max(1px,.04em);width:100%}.ML__sqrt-line:before{background:currentColor;content:"";display:block;forced-color-adjust:preserve-parent-color;margin-top:min(-1px,-.04em);min-height:max(1px,.04em);-webkit-print-color-adjust:exact;print-color-adjust:exact;transform:translate(0)}@media(forced-colors:active){.ML__sqrt-line:after{background:#fff!important}}.ML__sqrt-line:after{border-bottom-width:1px;content:" ";display:block;margin-top:-.1em}.ML__sqrt-index{margin-left:.27777778em;margin-right:-.55555556em}.ML__delim-size1{font-family:KaTeX_Size1}.ML__delim-size2{font-family:KaTeX_Size2}.ML__delim-size3{font-family:KaTeX_Size3}.ML__delim-size4{font-family:KaTeX_Size4}.ML__delim-mult .delim-size1>span{font-family:KaTeX_Size1}.ML__delim-mult .delim-size4>span{font-family:KaTeX_Size4}.ML__accent-body{font-family:KaTeX_Main}.ML__accent-combining-char{left:.24em;position:relative}.ML__latex{direction:ltr;display:inline-block;font-family:inherit;font-size-adjust:none;font-stretch:normal;font-style:normal;font-variant-caps:normal;letter-spacing:normal;line-height:1.2;text-align:left;text-indent:0;text-rendering:auto;word-wrap:normal;forced-color-adjust:preserve-parent-color;text-shadow:none;-webkit-user-select:none;user-select:none;white-space:nowrap;width:min-content;word-spacing:normal}.ML__latex .style-wrap{position:relative}.ML__latex .ML__left-right,.ML__latex .ML__mfrac{display:inline-block}.ML__latex .ML__vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.ML__latex .ML__vlist-r{display:table-row}.ML__latex .ML__vlist{display:table-cell;position:relative;vertical-align:bottom}.ML__latex .ML__vlist>span{display:block;height:0;position:relative}.ML__latex .ML__vlist>span>span{display:inline-block}.ML__latex .ML__vlist>span>.ML__pstrut{overflow:hidden;width:0}.ML__latex .ML__vlist-t2{margin-right:-2px}.ML__latex .ML__vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.ML__latex .ML__msubsup{text-align:left}.ML__latex .ML__negativethinspace{display:inline-block;height:.71em;margin-left:-.16667em}.ML__latex .ML__thinspace{display:inline-block;height:.71em;width:.16667em}.ML__latex .ML__mediumspace{display:inline-block;height:.71em;width:.22222em}.ML__latex .ML__thickspace{display:inline-block;height:.71em;width:.27778em}.ML__latex .ML__enspace{display:inline-block;height:.71em;width:.5em}.ML__latex .ML__quad{display:inline-block;height:.71em;width:1em}.ML__latex .ML__qquad{display:inline-block;height:.71em;width:2em}.ML__latex .ML__llap,.ML__latex .ML__rlap{display:inline-block;position:relative;width:0}.ML__latex .ML__llap>.ML__inner,.ML__latex .ML__rlap>.ML__inner{position:absolute}.ML__latex .ML__llap>.ML__fix,.ML__latex .ML__rlap>.ML__fix{display:inline-block}.ML__latex .ML__llap>.ML__inner{right:0}.ML__latex .ML__rlap>.ML__inner{left:0}.ML__latex .ML__rule{border:0 solid;box-sizing:border-box;display:inline-block;position:relative}.ML__latex .overline .overline-line,.ML__latex .underline .underline-line{width:100%}.ML__latex .overline .overline-line:before,.ML__latex .underline .underline-line:before{border-bottom-style:solid;border-bottom-width:max(1px,.04em);content:"";display:block;-webkit-print-color-adjust:exact;print-color-adjust:exact}.ML__latex .overline .overline-line:after,.ML__latex .underline .underline-line:after{border-bottom-style:solid;border-bottom-width:max(1px,.04em);content:"";display:block;margin-top:-1px;-webkit-print-color-adjust:exact;print-color-adjust:exact}.ML__latex .ML__stretchy{display:block;left:0;overflow:hidden;position:absolute;width:100%}.ML__latex .ML__stretchy:after,.ML__latex .ML__stretchy:before{content:""}.ML__latex .ML__stretchy svg{display:block;height:inherit;position:absolute;width:100%;fill:currentColor;stroke:currentColor;fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.ML__latex .slice-1-of-2{left:0}.ML__latex .slice-1-of-2,.ML__latex .slice-2-of-2{display:inline-flex;overflow:hidden;position:absolute;width:50.2%}.ML__latex .slice-2-of-2{right:0}.ML__latex .slice-1-of-3{left:0;width:25.1%}.ML__latex .slice-1-of-3,.ML__latex .slice-2-of-3{display:inline-flex;overflow:hidden;position:absolute}.ML__latex .slice-2-of-3{left:25%;width:50%}.ML__latex .slice-3-of-3{right:0;width:25.1%}.ML__latex .slice-1-of-1,.ML__latex .slice-3-of-3{display:inline-flex;overflow:hidden;position:absolute}.ML__latex .slice-1-of-1{left:0;width:100%}.ML__latex .ML__nulldelimiter,.ML__latex .ML__op-group{display:inline-block}.ML__latex .ML__op-symbol{position:relative}.ML__latex .ML__op-symbol.ML__small-op{font-family:KaTeX_Size1}.ML__latex .ML__op-symbol.ML__large-op{font-family:KaTeX_Size2}.ML__latex:has(.ML__align_environment),.ML__latex:has(.ML__center_environment),.ML__latex:has(.ML__eqnarray_environment),.ML__latex:has(.ML__gather_environment),.ML__latex:has(.ML__multiline_environment){width:100%}.ML__latex .ML__multiline_environment{display:inline-flex;width:100%}.ML__latex .ML__center_environment{display:inline-flex;justify-content:center;width:100%}.ML__latex .ML__align_environment,.ML__latex .ML__eqnarray_environment,.ML__latex .ML__gather_environment{display:inline-block}.ML__latex .ML__mtable .ML__vertical-separator{box-sizing:border-box;display:inline-block;min-width:1px}.ML__latex .ML__mtable .ML__arraycolsep{display:inline-block}.ML__latex .ML__mtable .col-align-m>.ML__vlist-t{text-align:center}.ML__latex .ML__mtable .col-align-c>.ML__vlist-t{text-align:center}.ML__latex .ML__mtable .col-align-l>.ML__vlist-t{text-align:left}.ML__latex .ML__mtable .col-align-r>.ML__vlist-t{text-align:right}[data-href]{cursor:pointer}.ML__error{background-color:#cc00411a;background-image:radial-gradient(ellipse at center,#cc0041,transparent 70%);background-position:0 100%;background-repeat:repeat-x;background-size:3px 3px;display:inline-block;padding-bottom:3px}.ML__error>.ML__error{background:transparent;padding:0}.ML__placeholder{color:var(--_placeholder-color);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;opacity:var(--_placeholder-opacity);padding-left:.4ex;padding-right:.4ex}.ML__notation{box-sizing:border-box;line-height:0;position:absolute}.ML__tooltip-container{position:relative;transform:scale(0)}.ML__tooltip-container .ML__tooltip-content{background:var(--tooltip-background-color);border:var(--tooltip-border);border-radius:var(--tooltip-border-radius);display:inline-table;max-width:400px;padding:12px;position:fixed;visibility:hidden;width:max-content;z-index:2;--_selection-color:var(--tooltip-color);box-shadow:var(--tooltip-box-shadow);color:var(--tooltip-color);opacity:0;transition:opacity .15s cubic-bezier(.4,0,1,1)}.ML__tooltip-container .ML__tooltip-content .ML__text{white-space:normal}.ML__tooltip-container .ML__tooltip-content .ML__base{display:contents}.ML__tooltip-container:hover .ML__tooltip-content{font-size:.75em;opacity:1;transform:scale(1) translateY(3em);visibility:visible}
