@charset "UTF-8";
[hidden]{display:none!important}
.mobile-settings{display:none}
:root{--paper:#f7f6f0;--ink:#263d35;--muted:#737b70;--forest:#214c43;--line:#dcded3;--rust:#a94730;--white:#fffefa;--sans:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:14px/1.55 var(--sans)}a{color:inherit;text-underline-offset:4px}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.4}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,svg:focus-visible{outline:3px solid #bc794c;outline-offset:3px}button{color:inherit}input[type=checkbox]{accent-color:var(--forest);width:15px;height:15px}input[type=number],select,input[type=text]{width:100%;border:1px solid #cfd4c9;background:var(--white);color:var(--ink);border-radius:5px;padding:9px 10px}input[type=number]{min-width:0}select{min-width:0}.skip{position:absolute;left:12px;top:-100px;background:white;padding:10px;z-index:100}.skip:focus{top:10px}.site-header{max-width:1440px;margin:auto;padding:24px 40px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:Georgia,serif;font-size:30px;font-weight:bold;letter-spacing:-1.2px}.brand svg{width:35px;height:35px;stroke:var(--rust);stroke-width:1.5;fill:var(--paper)}.brand-dot{color:var(--rust)}nav{display:flex;align-items:center;gap:28px;font-size:13px}nav a{text-decoration:none}nav a:hover{text-decoration:underline}.local-note{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:7px}.local-note>span{height:6px;width:6px;border-radius:50%;background:#68816b}main{max-width:1440px;margin:auto;padding:0 40px}.intro{padding:35px 0 29px;display:flex;align-items:center;justify-content:space-between}.eyebrow{font-size:10px;letter-spacing:2px;font-weight:650;color:var(--muted);margin:0 0 10px}h1{font-family:Georgia,serif;font-weight:normal;font-size:clamp(30px,3vw,43px);letter-spacing:-1.4px;line-height:1.15;margin:0 0 10px}.intro>div>p:last-child{margin:0;color:#6a746a;font-size:14px}.intro-note{display:flex;gap:15px;align-items:center;color:var(--muted);font-size:12px}.little-cross{font-size:44px;font-family:Georgia,serif;font-weight:normal;color:#b6bda9}.workspace{display:grid;grid-template-columns:280px minmax(0,1fr);border:1px solid #d1d7c9;border-radius:10px;overflow:hidden;background:var(--white);box-shadow:0 7px 25px #263d3505}.settings{border-right:1px solid var(--line);background:#fbfbf6}.setting-section{padding:21px 21px 19px;border-bottom:1px solid var(--line)}.section-title{display:flex;align-items:center;gap:10px;margin-bottom:15px}.step-number{font-family:monospace;font-size:10px;color:#7a8574;background:#eef0e6;border-radius:3px;padding:3px 5px}.section-title h2{font-size:13px;font-weight:650;margin:0}.dropzone{border:1px dashed #c7d0bf;border-radius:6px;text-align:center;padding:15px 8px 12px;background:#f4f5ed;transition:background .15s}.dropzone.drag-over{background:#e0eadf;border-color:var(--forest)}.dropzone>svg{display:block;margin:0 auto 10px;width:25px;height:25px;fill:none;stroke:#63785c;stroke-width:1.2}.dropzone p{margin:9px 0 0;font-size:10px;color:#6c7767}.dropzone>span{font-size:10px;color:#8a9282}.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;font-size:12px;font-weight:600;border-radius:5px;padding:10px 14px;border:1px solid transparent;text-decoration:none;white-space:nowrap}.primary{background:var(--forest);color:white}.primary:hover{background:#173d35}.secondary{background:#f7f8f1;border-color:#cbd2c1}.secondary:hover{background:#eef1e7}.full{width:100%;justify-content:space-between}.text-button{background:none;border:0;padding:0;font-size:11px;text-decoration:underline;text-underline-offset:3px}.text-button:hover{color:var(--rust)}.source-actions{display:flex;justify-content:center;gap:8px;align-items:center;margin:12px 0 0;font-size:11px}.source-actions>span{color:#a2aa97}.hint{font-size:10px;line-height:1.55;color:var(--muted);margin:10px 0 0}.two-cols{display:grid;grid-template-columns:1fr 1fr;gap:12px}.two-cols label{display:flex;flex-direction:column;font-size:11px;gap:6px;position:relative}.unit-label{position:absolute;right:0;top:1px;font-size:9px;color:#8a9380}.check-row{display:flex;align-items:center;gap:6px;font-size:10px;margin:11px 0 14px}.field-label{font-size:11px;display:block;margin:12px 0 6px}#convert{margin-top:14px}.size-result{font-size:13px;font-weight:600;margin:13px 0 0}.color-label{display:flex;gap:10px;align-items:center;font-size:11px;margin-top:16px}.color-label input{width:28px;height:27px;border:1px solid #d8ddce;background:white;padding:2px;border-radius:4px;cursor:pointer}.color-label span{font:10px monospace;color:var(--muted)}.project-controls{padding:16px 21px;display:flex;flex-direction:column;gap:8px;align-items:flex-start}#save-status{font-size:9px;color:var(--muted)}.editor{min-width:0;display:flex;flex-direction:column;position:relative}.editor-top{display:flex;align-items:center;justify-content:space-between;padding:19px 22px;gap:14px;border-bottom:1px solid var(--line);background:#fffefa}.project-heading{min-width:0;display:flex;flex-direction:column;gap:3px}.project-heading input{font-family:Georgia,serif;font-size:21px;line-height:1.2;border:0;background:transparent;color:var(--ink);width:100%;padding:2px 0}.project-heading span{color:var(--muted);font-size:10px;max-width:400px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.export-open{padding:10px 13px}.toolbar{display:flex;align-items:center;gap:11px;min-height:53px;padding:8px 17px;border-bottom:1px solid var(--line);flex-wrap:wrap;font-size:11px}.tool-group{display:flex;align-items:center;gap:2px}.tool{display:flex;align-items:center;gap:6px;border:1px solid transparent;background:transparent;padding:7px 9px;border-radius:4px;font-size:11px}.tool>span{font-size:17px;line-height:1}.tool.active{background:#eaf0e5;border-color:#d6dfcb;color:#29583b}.tool:hover{background:#f0f3e9}.history{padding-left:8px;border-left:1px solid var(--line)}.icon-button{font-size:19px;line-height:1;background:none;border:0;min-width:30px;min-height:30px;display:inline-flex;align-items:center;justify-content:center;border-radius:4px}.icon-button:hover{background:#edf1e5}.reference-control{display:flex;align-items:center;gap:4px;margin-left:auto;color:var(--muted);font-size:10px}.zoom-controls{display:flex;align-items:center;gap:3px;border-left:1px solid var(--line);padding-left:7px}.zoom-controls>span{font:10px monospace;width:36px;text-align:center}.zoom-controls .text-button{margin-left:5px}.canvas-scroll{background:#e9ede4;min-height:490px;height:610px;max-height:70vh;overflow:auto;display:flex;align-items:flex-start;justify-content:flex-start;padding:27px;overscroll-behavior:contain}#chart{flex:none;margin:auto;background:white;box-shadow:0 2px 6px #263d3510;touch-action:none;user-select:none;cursor:default}#chart[data-mode=draw]{cursor:crosshair}#chart[data-mode=erase]{cursor:crosshair}.stitch-line{stroke-linecap:round;fill:none;pointer-events:none}.line-hit{stroke:transparent;stroke-width:11;fill:none;cursor:pointer;pointer-events:stroke}.node{fill:white;stroke-width:1.5;cursor:grab}.node:hover{fill:#eef1e5}.node.selected{fill:#e4b86b;stroke:#5c4724}.selected-line{stroke:#e1b65f;stroke-width:5;fill:none;stroke-linecap:round;pointer-events:none}.canvas-bottom{display:flex;justify-content:space-between;align-items:center;gap:15px;border-top:1px solid var(--line);padding:12px 19px;background:#fafbf5;color:var(--muted);font-size:10px}.canvas-bottom p{margin:0}.canvas-bottom>span{white-space:nowrap;font-family:monospace}.selection-panel{padding:12px 18px;display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);font-size:11px;flex-wrap:wrap}.selection-panel[hidden]{display:none}.selection-panel>strong{font-size:11px}#point-fields{display:flex;gap:7px;align-items:center}#point-fields[hidden]{display:none}#point-fields label{display:flex;align-items:center;gap:5px}#point-fields input{width:67px;padding:5px 7px;font-size:11px}.small{font-size:10px;padding:6px 10px}.danger{color:#a23b2c}#clear-selection{margin-left:auto}.status{font-size:11px;padding:11px 18px;line-height:1.6;color:#61725b;border-top:1px solid var(--line);background:#f2f5eb;min-height:40px}.status.error{color:#8a382b;background:#fff1e9}.below-editor{display:grid;grid-template-columns:repeat(3,1fr);gap:52px;margin:36px 0 44px}.mini-label{font:9px monospace;letter-spacing:1px;color:#8a937f}.below-editor h2{font:normal 20px Georgia,serif;margin:9px 0 8px;letter-spacing:-.3px}.below-editor p{font-size:12px;color:var(--muted);margin:0;line-height:1.8}.below-editor a{white-space:nowrap}footer{border-top:1px solid var(--line);max-width:1440px;margin:auto;padding:24px 40px 30px;display:flex;align-items:center;gap:25px;font-size:11px;color:var(--muted)}.footer-brand{font:bold 20px Georgia,serif;color:var(--ink)}footer>div{margin-left:auto;display:flex;gap:22px}footer a{text-decoration:none}.muted{color:#949b8c}dialog{border:1px solid #d1d7c9;border-radius:10px;padding:26px;max-width:480px;width:calc(100% - 30px);color:var(--ink);background:var(--white);box-shadow:0 15px 80px #192d3530}dialog::backdrop{background:#1f312e65}.dialog-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:15px}dialog h2{font:normal 28px Georgia,serif;margin:0 0 12px;letter-spacing:-.6px}.dialog-copy{font-size:12px;color:var(--muted);margin:0 0 16px}.export-options{display:grid;grid-template-columns:1fr 1fr;gap:10px}.export-options button{text-align:left;background:#f4f6ed;border:1px solid #d6ddcb;border-radius:6px;padding:15px 12px}.export-options button:hover{background:#e9efdf}.export-options strong{font-size:12px;display:block;font-weight:600}.export-options strong>span{float:right}.export-options small{font-size:10px;color:var(--muted);display:block;margin-top:7px}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}.notice{border:1px solid var(--line);padding:15px}.article{max-width:780px;padding-top:45px;padding-bottom:60px}.article h1{margin-bottom:25px}.article h2{font:normal 25px Georgia,serif;margin:32px 0 13px}.article p,.article li{color:#5a685d;font-size:14px;line-height:1.9}.article .eyebrow{font-size:10px}.article .button{margin-top:18px}.article code{background:#ecf0e5;padding:2px 4px}.article li{margin-bottom:8px}@media(min-width:1500px){.canvas-scroll{height:690px;max-height:73vh}}@media(max-width:1050px){.site-header{padding:20px 24px}main{padding:0 24px}.workspace{grid-template-columns:250px minmax(0,1fr)}.setting-section{padding:18px}.toolbar{gap:6px;padding:8px 10px}.reference-control{margin-left:0}.zoom-controls{margin-left:auto}.canvas-scroll{padding:17px}.intro-note{display:none}footer{padding:24px}.below-editor{gap:28px}}@media(max-width:760px){.site-header{padding:16px 18px}.brand{font-size:27px}.brand svg{width:28px;height:28px}nav{gap:18px}.local-note{display:none}main{padding:0 14px}.intro{padding:28px 4px 24px}.intro h1{font-size:33px}.intro>div>p:last-child{font-size:12px;max-width:300px}.workspace{grid-template-columns:1fr}.settings{display:grid;grid-template-columns:1fr 1fr;border-right:0;border-bottom:1px solid var(--line)}.setting-section{padding:16px}.setting-section:first-child{grid-column:1/-1}.dropzone{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;padding:13px}.dropzone>svg{margin:0;width:22px}.dropzone p{margin:0}.dropzone>span{display:none}.source-actions{margin-top:9px}.setting-section:nth-child(2){border-right:1px solid var(--line)}.setting-section:nth-child(3){min-width:0}.project-controls{grid-column:1/-1;flex-direction:row;justify-content:space-between;padding:12px 16px}.two-cols{gap:8px}.hint{font-size:10px}.unit-label{display:none}.editor-top{padding:15px}.project-heading input{font-size:21px}.toolbar{padding:8px 10px;gap:6px}.tool{padding:6px 8px}.reference-control{margin-left:auto}.zoom-controls{margin-left:0}.canvas-scroll{min-height:350px;height:480px;max-height:70vh;padding:15px}.canvas-bottom{padding:10px 12px;align-items:flex-start;font-size:10px}.canvas-bottom p{max-width:210px}.below-editor{grid-template-columns:1fr;gap:22px;margin:26px 4px 32px}.below-editor h2{margin:4px 0}.below-editor p{max-width:490px}.mini-label{font-size:9px}footer{padding:20px 18px;gap:10px;flex-wrap:wrap}footer>span:nth-child(2){font-size:10px}footer>div{width:100%;margin:5px 0 0}.selection-panel{padding:10px;gap:9px}.article{padding:30px 22px}.export-options{grid-template-columns:1fr 1fr}}@media(max-width:390px){.settings{grid-template-columns:1fr}.setting-section:nth-child(2){border-right:0}.reference-control{margin-left:0}.zoom-controls{margin-left:auto}.export-open{padding:8px 10px}.editor-top{gap:8px}.project-heading{max-width:190px}.color-label{margin-top:10px}footer .muted{display:none}}
@media(max-width:760px){.settings{display:block}.settings .setting-section{border-right:0}.mobile-settings{display:flex;width:100%;align-items:center;justify-content:space-between;border:0;background:#eef2e6;padding:13px 16px;text-align:left;font-size:12px;color:#214c43}.settings:not(.expanded) .setting-section:not(:first-child),.settings:not(.expanded) .project-controls{display:none}.settings .two-cols{grid-template-columns:1fr 1fr}.settings .size-result{font-size:13px}.settings .section-title h2{white-space:nowrap}}