:root{--ink:#151515;--muted:#66645f;--paper:#fffdf8;--paper2:#f6f0e6;--surface:#fff;--line:#ded8cd;--blue:#2563eb;--pink:#ff4d8d;--yellow:#ffd60a;--mint:#2dd4bf;--purple:#8b5cf6;--shadow:7px 7px 0 var(--ink)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a{touch-action:manipulation}:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.shell{width:min(1240px,calc(100% - 28px));margin:auto}.announcement{padding:8px 14px;background:var(--ink);color:#fff;text-align:center;font-size:11px;font-weight:850;letter-spacing:.03em}.site-header{position:sticky;top:0;z-index:40;background:rgba(255,253,248,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.nav-row{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{display:flex;align-items:center;gap:9px;font-size:19px;font-weight:950}.brand img{width:38px;height:38px}.top-nav{display:flex;gap:7px;align-items:center;font-size:12px;font-weight:850}.top-nav a{padding:8px 10px;border-radius:999px}.top-nav a:hover{background:#fff}.nav-cta{display:inline-flex;align-items:center;min-height:39px;padding:0 14px;border:2px solid var(--ink);border-radius:999px;background:var(--yellow);box-shadow:3px 3px 0 var(--ink);font-size:11px;font-weight:950}.hero{padding:58px 0 32px;background-image:radial-gradient(#d9d3c7 1px,transparent 1px);background-size:18px 18px}.hero-grid{display:grid;grid-template-columns:1.14fr .86fr;gap:42px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:11px;font-weight:900;letter-spacing:.17em;text-transform:uppercase}.hero h1{margin:14px 0 18px;font-size:clamp(44px,6vw,78px);line-height:.93;letter-spacing:-.065em;max-width:800px}.hero p{max-width:720px;margin:0;color:var(--muted);font-size:17px}.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:22px}.chips span{padding:7px 10px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:10px;font-weight:850}.hero-card{min-height:270px;padding:22px;border:3px solid var(--ink);border-radius:26px;background:#fff;box-shadow:11px 11px 0 var(--ink)}.hero-flow{height:100%;display:grid;align-content:center;gap:18px}.hero-flow span{position:relative;display:grid;place-items:center;min-height:52px;border:2px solid var(--ink);border-radius:15px;background:var(--yellow);box-shadow:4px 4px 0 var(--ink);font-size:12px;font-weight:950}.hero-flow span:nth-child(2){margin-inline:42px;background:var(--mint)}.hero-flow span:nth-child(3){margin-inline:84px;background:var(--pink)}.workspace-wrap{padding:24px 0 76px}.workspace{overflow:hidden;border:3px solid var(--ink);border-radius:26px;background:#fff;box-shadow:12px 12px 0 var(--ink)}.topbar{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:11px 13px;border-bottom:2px solid var(--ink);background:var(--paper2)}.type-row{display:flex;align-items:center;gap:8px}.type-row label{color:var(--muted);font-size:9px;font-weight:950;letter-spacing:.1em;text-transform:uppercase}.type-row select,.panel select,.inspector select{min-height:38px;border:1px solid var(--line);border-radius:10px;background:#fff;padding:0 30px 0 10px;font-size:11px;font-weight:850}.actions{display:flex;gap:6px;flex-wrap:wrap}.toolbtn{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 10px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:10px;font-weight:900;cursor:pointer}.toolbtn.primary{background:var(--yellow);border-color:var(--ink)}.grid{display:grid;grid-template-columns:280px minmax(0,1fr) 290px;min-height:690px}.panel,.inspector{min-width:0;background:#fff}.panel{border-right:1px solid var(--line)}.inspector{border-left:1px solid var(--line)}.panel-tabs,.inspector-tabs{display:grid;border-bottom:1px solid var(--line)}.panel-tabs{grid-template-columns:repeat(5,1fr)}.inspector-tabs{grid-template-columns:repeat(2,1fr)}.panel-tabs button,.inspector-tabs button{min-height:48px;border:0;border-right:1px solid var(--line);background:#fff;font-size:8px;font-weight:950;text-transform:uppercase;cursor:pointer}.panel-tabs button.active,.inspector-tabs button.active{background:var(--ink);color:#fff}.panel-body,.inspector-body{max-height:635px;overflow:auto}.pane{display:none;padding:13px;gap:11px}.pane.active{display:grid}.pane h3{margin:0;font-size:13px}.pane small{color:var(--muted);font-size:9px}.pane textarea,.pane input[type=text],.inspector input[type=text],.inspector textarea{width:100%;border:1px solid var(--line);border-radius:12px;background:#fff;padding:10px;font-size:11px}.pane textarea{min-height:210px;resize:vertical;font-family:ui-monospace,monospace}.fullbtn{display:flex;justify-content:center;align-items:center;min-height:42px;border:2px solid var(--ink);border-radius:999px;background:var(--yellow);box-shadow:3px 3px 0 var(--ink);font-size:11px;font-weight:950;cursor:pointer}.search{display:flex;align-items:center;border:1px solid var(--line);border-radius:11px;padding:0 9px}.search input{border:0!important;outline:0;padding-left:2px!important}.templates{display:grid;gap:8px}.template{display:grid;gap:7px;padding:11px;border:1px solid var(--line);border-radius:14px;background:var(--paper)}.template em{font-style:normal;color:var(--muted);font-size:8px;font-weight:950;letter-spacing:.1em;text-transform:uppercase}.template strong{font-size:12px}.template p{margin:0;color:var(--muted);font-size:9px}.template .modes{display:flex;gap:4px;flex-wrap:wrap}.template .modes span{padding:3px 5px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:7px;font-weight:800}.template button{min-height:32px;border:1px solid var(--ink);border-radius:9px;background:var(--yellow);font-size:9px;font-weight:950;cursor:pointer}.node-list,.project-list{display:grid;gap:6px}.node-list button{display:grid;grid-template-columns:23px minmax(0,1fr);gap:7px;align-items:center;padding:7px;border:1px solid var(--line);border-radius:10px;background:#fff;text-align:left;cursor:pointer}.node-list button.active{border-color:var(--blue);box-shadow:0 0 0 2px #dbeafe}.node-list i{display:grid;place-items:center;width:23px;height:23px;border-radius:7px;background:var(--paper2);font-style:normal;font-size:8px;font-weight:900}.node-list strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:9px}.palette-list{display:grid;grid-template-columns:repeat(2,1fr);gap:7px}.palette-list button{padding:6px;border:1px solid var(--line);border-radius:11px;background:#fff;cursor:pointer}.palette-list span{display:grid;grid-template-columns:repeat(5,1fr);height:34px;overflow:hidden;border-radius:7px}.palette-list i{display:block}.palette-list small{display:block;margin-top:5px;font-weight:850}.canvas{min-width:0;display:flex;flex-direction:column;background:#eee7dc}.canvas-head{min-height:44px;display:flex;justify-content:space-between;align-items:center;gap:8px;padding:7px 11px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.85);font-size:10px;font-weight:900}.live{display:inline-block;width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 4px #dcfce7}.stage{flex:1;display:grid;place-items:center;min-height:565px;padding:18px;overflow:auto}.stage.mobile svg{width:360px;min-width:360px}.stage svg{display:block;width:min(100%,1120px);min-width:680px;height:auto;border:1px solid #d9d3c7;border-radius:22px;background:#fff;box-shadow:0 22px 60px rgba(44,35,24,.14)}.status{min-height:39px;padding:8px 11px;border-top:1px solid var(--line);background:#fff;color:var(--muted);font-size:9px}.inspector .pane label{display:grid;gap:5px;color:var(--muted);font-size:9px;font-weight:900}.check{grid-template-columns:18px 1fr!important;align-items:center}.node-actions{display:grid;grid-template-columns:1fr 1fr;gap:5px}.node-actions button{min-height:33px;border:1px solid var(--line);border-radius:8px;background:#fff;font-size:8px;font-weight:850;cursor:pointer}.node-actions button.danger{grid-column:1/-1;color:#b91c1c}.score{display:grid;grid-template-columns:58px 1fr;gap:9px;align-items:center;padding:10px;border:2px solid var(--ink);border-radius:14px;background:#86efac;box-shadow:4px 4px 0 var(--ink)}.score.warn{background:#fde68a}.score.bad{background:#fda4af}.score b{display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:#fff;font-size:22px}.score strong,.score small{display:block}.findings{display:grid;gap:6px}.finding{padding:8px;border-radius:10px;background:var(--paper2)}.finding strong{font-size:9px}.finding p{margin:2px 0 0;color:var(--muted);font-size:8px}.color-inputs{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.color-inputs input{width:100%;height:40px;border:1px solid var(--line);border-radius:8px;padding:3px}.empty{padding:16px;border:1px dashed #b8b0a4;border-radius:12px;color:var(--muted);font-size:9px;text-align:center}.modes-section,.seo-section{padding:72px 0}.modes-section{background:var(--paper2)}.section-head{display:flex;justify-content:space-between;gap:26px;align-items:end;margin-bottom:24px}.section-head h2{margin:7px 0 0;font-size:clamp(30px,4vw,48px);line-height:1;letter-spacing:-.045em}.section-head p{max-width:540px;margin:0;color:var(--muted)}.mode-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.mode-card{min-height:155px;padding:17px;border:2px solid var(--ink);border-radius:18px;background:#dbeafe;box-shadow:4px 4px 0 var(--ink)}.mode-card:nth-child(4n+2){background:#ccfbf1}.mode-card:nth-child(4n+3){background:#fef3c7}.mode-card:nth-child(4n){background:#fce7f3}.mode-card strong{display:block;font-size:15px}.mode-card p{color:#4b4b46;font-size:11px}.seo-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:18px}.seo-card{padding:22px;border:1px solid var(--line);border-radius:18px;background:#fff}.seo-card h2,.seo-card h3{margin-top:0}.seo-card li{margin:8px 0;color:var(--muted)}.site-footer{padding:44px 0 20px;background:var(--ink);color:#fff}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:28px}.footer-grid h3{margin:0 0 10px;font-size:11px;letter-spacing:.11em;text-transform:uppercase}.footer-grid a{display:block;margin:7px 0;color:#c4c4c4;font-size:12px}.footer-grid p{font-weight:800}.footer-bottom{margin-top:28px;padding-top:16px;border-top:1px solid #333;color:#999;font-size:10px}.mobile-actions{display:none}@media(max-width:1050px){.grid{grid-template-columns:240px minmax(0,1fr)}.inspector{grid-column:1/-1;border-left:0;border-top:1px solid var(--line)}.inspector-tabs{grid-template-columns:repeat(4,1fr)}.inspector-body{max-height:none}.inspector .pane.active{grid-template-columns:repeat(2,1fr)}.mode-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:820px){.workspace button,.workspace .fullbtn,.workspace .toolbtn{min-height:44px}.top-nav{display:none}.hero-grid{grid-template-columns:1fr}.hero-card{min-height:230px}.topbar{display:grid}.actions{display:grid;grid-template-columns:repeat(5,1fr)}.toolbtn{padding:0 4px;font-size:8px}.grid{display:flex;flex-direction:column}.canvas{order:1}.panel{order:2;border-right:0;border-top:1px solid var(--line)}.inspector{order:3}.stage{min-height:420px;justify-content:flex-start}.panel-body{max-height:480px}.mode-grid{grid-template-columns:repeat(2,1fr)}.seo-grid,.footer-grid{grid-template-columns:1fr}.mobile-actions{position:sticky;bottom:0;z-index:20;display:grid;grid-template-columns:repeat(5,1fr);border-top:2px solid var(--ink);background:#fff}.mobile-actions button{min-height:52px;border:0;background:#fff;font-size:8px;font-weight:900}.inspector .pane.active{grid-template-columns:1fr}}@media(max-width:520px){.shell{width:min(100% - 18px,1240px)}.hero{padding-top:42px}.hero h1{font-size:43px}.hero p{font-size:14px}.hero-flow span:nth-child(2){margin-inline:25px}.hero-flow span:nth-child(3){margin-inline:50px}.workspace{border-radius:18px;box-shadow:7px 7px 0 var(--ink)}.type-row{justify-content:space-between}.actions{grid-template-columns:repeat(4,1fr)}.toolbtn:nth-child(1),.toolbtn:nth-child(2){display:none}.panel-tabs button{font-size:0}.panel-tabs button::first-letter{font-size:12px}.stage{padding:8px}.stage.mobile svg{width:320px;min-width:320px}.mode-grid{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:12px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}@media print{.announcement,.site-header,.hero,.topbar,.panel,.inspector,.canvas-head,.status,.mobile-actions,.modes-section,.seo-section,.site-footer{display:none!important}.workspace{border:0;box-shadow:none}.grid{display:block}.stage{padding:0;background:#fff}.stage svg{min-width:0;border:0;box-shadow:none}}
/* v4.1.1 interactive canvas tools */
.draw-toolbar{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:8px 10px;border-bottom:1px solid var(--line);background:#fffdf8}.draw-toolbar .toolbtn{min-width:42px}.draw-toolbar .toolbtn.active{background:var(--ink);color:#fff;box-shadow:2px 2px 0 var(--yellow)}.draw-toolbar label{display:flex;align-items:center;gap:5px;color:var(--muted);font-size:8px;font-weight:900;text-transform:uppercase}.draw-toolbar input[type=color]{width:38px;height:34px;border:1px solid var(--line);border-radius:8px;padding:2px;background:#fff}.draw-toolbar input[type=range]{width:76px}.stage svg[data-tool=draw],.stage svg[data-tool=line],.stage svg[data-tool=box],.stage svg[data-tool=text]{cursor:crosshair;touch-action:none}.stage svg[data-tool=eraser]{cursor:not-allowed;touch-action:none}.stage svg[data-tool=select]{cursor:default;touch-action:none}.vnode{cursor:grab}.vnode:active,.vannotation:active{cursor:grabbing}.vannotation{cursor:pointer}.element-shortcuts{display:grid;grid-template-columns:1fr 1fr;gap:7px}.element-shortcuts button{min-height:38px;border:1px solid var(--line);border-radius:9px;background:#fff;font-size:9px;font-weight:900;cursor:pointer}.annotation-list{display:grid;gap:6px}.annotation-list button{display:grid;grid-template-columns:23px minmax(0,1fr);gap:7px;align-items:center;padding:7px;border:1px solid var(--line);border-radius:10px;background:#fff;text-align:left;cursor:pointer}.annotation-list button.active{border-color:var(--blue);box-shadow:0 0 0 2px #dbeafe}.annotation-list i{display:grid;place-items:center;width:23px;height:23px;border-radius:7px;background:var(--paper2);font-style:normal;font-size:8px;font-weight:900}.annotation-list strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:9px}.annotation-edit{display:grid;gap:9px;padding-top:10px;border-top:1px solid var(--line)}.annotation-edit h4{margin:0;font-size:11px}.tutorial-link{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 14px;border:1px solid var(--ink);border-radius:999px;background:#fff;font-weight:900;font-size:10px}.support-section{padding:54px 0;background:#f5efe3}.support-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:18px}.donation-card,.feedback-card{padding:22px;border:2px solid var(--ink);border-radius:20px;background:#fff;box-shadow:5px 5px 0 var(--ink)}.donation-card{background:#fff4b8}.donation-card h2,.feedback-card h2{margin:6px 0 8px;font-size:25px}.donation-card p,.feedback-card p{color:var(--muted);font-size:12px}.support-actions{display:flex;gap:8px;flex-wrap:wrap}.support-actions a,.support-actions button{min-height:42px;padding:0 15px;border:2px solid var(--ink);border-radius:999px;background:var(--yellow);font-weight:950;cursor:pointer}.feedback-card form{display:grid;gap:10px}.feedback-card label{display:grid;gap:5px;font-size:10px;font-weight:900}.feedback-card select,.feedback-card textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:10px;background:#fff}.feedback-card textarea{min-height:100px;resize:vertical}.feedback-counter{color:var(--muted);font-size:9px;text-align:right}.site-footer .footer-grid-wide{grid-template-columns:1.5fr repeat(5,1fr)}.site-footer .footer-brand small{display:block;color:#aaa;line-height:1.55}.site-footer .footer-logo-row{margin-bottom:10px}
.home-diagram-feature-static{padding:72px 0;background:#fff7e6}.home-diagram-feature-card{display:grid;grid-template-columns:minmax(0,.85fr) minmax(420px,1.15fr);gap:32px;align-items:center;padding:30px;border:2px solid #151515;border-radius:28px;background:#fff;box-shadow:8px 8px 0 #151515}.home-diagram-feature-copy h2{margin:7px 0 12px;font-size:clamp(34px,4.6vw,60px);line-height:.96;letter-spacing:-.05em}.home-diagram-feature-copy p{color:#66645f;font-size:15px;line-height:1.65}.home-diagram-feature-actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:18px}.home-diagram-feature-actions a{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 17px;border:2px solid #151515;border-radius:999px;background:#ffd60a;color:#151515;font-weight:950;text-decoration:none}.home-diagram-feature-actions a:last-child{background:#fff}.home-diagram-feature-preview img{display:block;width:100%;height:auto;border:1px solid #d8d1c5;border-radius:18px;background:#fffdf8}
@media(max-width:1050px){.site-footer .footer-grid-wide{grid-template-columns:repeat(3,1fr)}.support-grid{grid-template-columns:1fr}.home-diagram-feature-card{grid-template-columns:1fr}}
@media(max-width:820px){.draw-toolbar{position:sticky;top:0;z-index:5;overflow-x:auto;flex-wrap:nowrap}.draw-toolbar label{flex:0 0 auto}.support-section{padding:38px 0}.site-footer .footer-grid-wide{grid-template-columns:1fr 1fr}.home-diagram-feature-static{padding:45px 0}.home-diagram-feature-card{padding:20px;box-shadow:5px 5px 0 #151515}.home-diagram-feature-copy h2{font-size:38px}}
@media(max-width:520px){.draw-toolbar .toolbtn{font-size:0;min-width:44px}.draw-toolbar .toolbtn::first-letter{font-size:10px}.element-shortcuts{grid-template-columns:1fr}.site-footer .footer-grid-wide{grid-template-columns:1fr}.home-diagram-feature-card{padding:16px}.home-diagram-feature-copy h2{font-size:34px}}
.mobile-actions{grid-template-columns:repeat(6,1fr)}
[hidden]{display:none!important}