:root{--color-ink: #122044;--color-muted: #52617e;--color-blue: #2355b8;--color-blue-deep: #173d87;--color-cyan: #63d4ef;--color-cyan-soft: #dff7ff;--color-pink: #df62aa;--color-pink-deep: #922a69;--color-pink-soft: #f9d9ef;--color-lavender: #b7a3e3;--color-lavender-deep: #7442a8;--color-lavender-soft: #eee7fa;--color-silver: #c5cbdd;--color-silver-dark: #a0aac3;--color-line: #acb5cd;--color-canvas: #edf0fa;--color-surface: #f9faff;--color-white: #ffffff;--color-disabled: #727c91;--color-error: #a3264e;--color-error-soft: #ffe5ed;--color-code-string: #7442a8;--color-code-number: #922a69;--color-code-comment: #626a85;--color-code-type: #7442a8;--radius-small: 4px;--radius-button: 5px;--radius-pane: 6px;--radius-panel: 12px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-6: 24px;--space-7: 28px;--gradient-chrome: linear-gradient(var(--color-white),var(--color-canvas) 43%,var(--color-silver-dark) 48%,var(--color-silver) 53%,var(--color-surface));--gradient-secondary: 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format("woff")}:root{font-family:var(--font-body);color:var(--color-ink);background:var(--color-canvas);font-synthesis:none;--ink:var(--color-ink);--muted:var(--color-muted);--accent:var(--color-blue);--line:var(--color-line);--paper:var(--color-surface);--error:var(--color-error);--chrome:var(--gradient-chrome);--blue:var(--gradient-secondary);color-scheme:light}*{box-sizing:border-box}html{scroll-padding-top:24px}body{margin:0;background:linear-gradient(90deg,transparent 49.8%,color-mix(in srgb,var(--color-disabled) 4.71%,transparent) 50%,transparent 50.2%),linear-gradient(color-mix(in srgb,var(--color-silver-dark) 7.84%,transparent) 1px,transparent 1px);background-size:80px 80px;min-height:100vh}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:not-allowed;color:var(--color-disabled);background:linear-gradient(var(--color-lavender-soft),var(--color-silver));border-color:var(--color-silver-dark);box-shadow:none}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:4px}::selection{background:var(--color-blue);color:var(--color-white)}a{color:var(--color-blue);text-underline-offset:4px}textarea,input{caret-color:var(--accent)}[hidden]{display:none!important}::-webkit-scrollbar{width:10px;height:10px;background:var(--color-surface)}::-webkit-scrollbar-thumb{background:var(--color-line);border:2px solid var(--color-surface);border-radius:8px}.masthead{max-width:1400px;margin:28px auto 0;display:flex;align-items:center;gap:var(--space-6);padding:0 28px 0 10px;min-height:176px;border:1px solid var(--color-silver-dark);border-radius:24px 24px 4px 4px;background:linear-gradient(120deg,var(--color-lavender-soft),var(--color-canvas) 55%,var(--color-cyan-soft));box-shadow:inset 0 1px var(--color-white),inset 0 -5px var(--color-silver),0 12px 35px color-mix(in srgb,var(--color-muted) 13.33%,transparent);position:relative}.wordmark{display:block;width:250px;height:170px;flex-shrink:0}.wordmark img{display:block;width:100%;height:100%;object-fit:contain}.product-note{font-family:var(--font-display);font-size:23px;font-weight:700;letter-spacing:.045em;text-transform:none;color:var(--color-ink);max-width:220px;line-height:1.1}.product-note small{display:block;font:13px var(--font-body);letter-spacing:.02em;color:var(--color-muted);text-transform:none;margin-top:12px}.main-nav{display:flex;gap:6px;margin-left:auto;align-self:flex-end;margin-bottom:32px}.main-nav a{font-family:var(--font-display);font-size:14px;font-weight:600;text-decoration:none;padding:9px 16px;border:1px solid var(--color-silver-dark);border-radius:14px 14px 4px 4px;background:var(--blue);color:var(--color-ink);box-shadow:inset 0 1px color-mix(in srgb,var(--color-white) 60%,transparent),0 3px 6px color-mix(in srgb,var(--color-muted) 13.33%,transparent)}.main-nav a:first-child{background:var(--chrome);color:var(--color-ink)}.main-nav a:hover{border-color:var(--accent);color:var(--accent)}.main-nav a:first-child:hover{color:var(--color-lavender-deep)}main{width:min(1400px,calc(100% - 48px));margin:0 auto 28px;padding:0 28px;background:linear-gradient(90deg,var(--color-lavender-soft),var(--color-surface) 25%,var(--color-surface) 75%,var(--color-lavender-soft));border:1px solid var(--color-silver-dark);border-top:0;border-radius:0 0 22px 22px;box-shadow:inset 2px 0 color-mix(in srgb,var(--color-white) 53.33%,transparent),inset -2px 0 color-mix(in srgb,var(--color-white) 53.33%,transparent),0 20px 50px color-mix(in srgb,var(--color-muted) 13.33%,transparent)}.intro{display:flex;align-items:center;justify-content:space-between;gap:var(--space-6);padding:26px 0 24px}h1{font-family:var(--font-display);font-size:39px;line-height:1.12;letter-spacing:-.025em;margin:0 0 8px;font-weight:700;color:var(--color-ink)}p{line-height:1.6;max-width:70ch;margin:0;color:var(--muted)}.intro p{font-size:15px}.runtime-label{font-size:13px!important;text-align:right;line-height:1.8;color:var(--color-muted);flex-shrink:0}.runtime-label span{color:var(--color-muted)}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding:12px 14px;background:var(--chrome);border:1px solid var(--color-silver-dark);border-bottom:3px solid var(--color-line);border-radius:10px 10px 0 0;color:var(--color-ink);box-shadow:inset 0 1px var(--color-white)}.example-picker{display:flex;align-items:center;gap:12px}.example-picker label{font-size:13px;font-weight:600;white-space:nowrap}select{border:1px solid var(--color-silver-dark);border-radius:3px;background:var(--color-white);color:var(--color-ink);padding:9px 30px 9px 12px;min-width:188px;box-shadow:inset 0 2px 4px color-mix(in srgb,var(--color-ink) 13.33%,transparent);font-size:13px}.actions{display:flex;align-items:center;gap:7px}button{display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:36px;padding:8px 13px;border:1px solid var(--color-silver-dark);border-radius:var(--radius-button);background:var(--blue);color:var(--color-ink);box-shadow:inset 0 1px color-mix(in srgb,var(--color-white) 66.67%,transparent),0 2px 3px color-mix(in srgb,var(--color-muted) 13.33%,transparent);font-size:13px;font-weight:600;transition:filter .12s ease-out,box-shadow .12s ease-out}button:hover:not(:disabled){filter:brightness(1.18)}button:active:not(:disabled){box-shadow:inset 0 2px 4px color-mix(in srgb,var(--color-muted) 20%,transparent)}.primary{background:var(--gradient-primary);color:var(--color-ink);border-color:var(--color-pink-deep);min-width:108px;box-shadow:inset 0 1px var(--color-surface),0 2px 3px color-mix(in srgb,var(--color-muted) 13.33%,transparent)}.quiet{background:linear-gradient(var(--color-white),var(--color-silver));color:var(--color-ink)}.text-button{font-size:12px;min-height:28px;padding:5px 10px;border-radius:3px}.workspace{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:14px;background:var(--color-lavender-soft);border:1px solid var(--color-silver-dark);border-top:0;border-radius:0 0 12px 12px;box-shadow:inset 0 1px 10px color-mix(in srgb,var(--color-muted) 13.33%,transparent)}.pane{min-width:0;display:flex;flex-direction:column;height:428px;border:1px solid var(--color-silver-dark);border-radius:var(--radius-pane);background:var(--paper);overflow:hidden;box-shadow:0 4px 12px color-mix(in srgb,var(--color-ink) 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button{margin-top:8px}.error-location{color:var(--error);background:var(--color-error-soft);margin-top:16px;text-align:left}#generated{margin-top:20px;border-top:1px solid var(--line);padding-top:12px}#generated summary{font-size:13px;color:var(--color-blue);cursor:pointer}#generated pre{margin-top:12px}#status[data-state=failed]{color:var(--error)}#status[data-state=running]{color:var(--accent)}.notice{background:var(--color-lavender-soft);border:1px solid var(--color-lavender);border-radius:var(--radius-small);padding:12px 16px;margin-bottom:18px;font-size:14px;color:var(--color-muted)}.notice button{margin-left:12px}.reference{padding:28px 0 22px}.reference-title{display:flex;justify-content:space-between;align-items:center;gap:var(--space-6);margin-bottom:14px}.reference h2{font:600 24px/1.25 var(--font-display);margin:0 0 7px;color:var(--color-ink)}.reference p{font-size:14px}.search input{background:var(--color-white);border:1px solid 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var(--color-line);display:flex;justify-content:space-between;gap:20px;padding:18px 0 22px;color:var(--color-muted);font-size:12px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(min-width:1448px){.masthead{width:1400px}}@media(max-width:1447px){.masthead{width:calc(100% - 48px)}}@media(max-width:1000px){.masthead{gap:var(--space-3);padding-right:18px}.wordmark{width:210px;height:150px}.product-note{font-size:19px;max-width:190px}.main-nav a{padding:8px 10px}.toolbar{align-items:flex-start;flex-wrap:wrap}.actions{margin-left:auto}}@media(max-width:760px){.masthead{margin-top:14px;min-height:0;padding:0 16px 14px;display:grid;grid-template-columns:150px 1fr;gap:0 12px;width:calc(100% - 24px);border-radius:18px 18px 0 0}.wordmark{width:158px;height:118px}.product-note{font-size:19px}.product-note small{font-size:12px;line-height:1.5;margin-top:8px}.main-nav{grid-column:1/-1;justify-content:center;margin:0;align-self:auto}.main-nav a{flex:1;text-align:center}main{width:calc(100% - 24px);padding:0 14px}.intro{padding:22px 0 20px;align-items:flex-start}h1{font-size:33px}.intro p{font-size:14px}.runtime-label{display:none}.toolbar{gap:var(--space-3);padding:12px}.example-picker{width:100%;justify-content:space-between}.example-picker select{min-width:0;flex:1;max-width:230px}.actions{width:100%;flex-wrap:wrap;gap:6px}.actions .primary{margin-left:auto}.workspace{grid-template-columns:1fr;padding:9px;gap:12px}.pane{height:390px}.output-pane{height:340px}.reference-title{align-items:flex-start;flex-direction:column;gap:14px}.search,.search input{width:100%}.vocabulary{grid-template-columns:1fr 1fr;column-gap:22px}footer{flex-direction:column;gap:8px}.pane-footer{font-size:11px}.editor-pane .pane-footer span{display:none}textarea{font-size:13px;padding:18px 14px}.empty-state 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#source-highlight::-webkit-scrollbar{display:none}.code-editor #source{color:transparent;-webkit-text-fill-color:transparent;caret-color:var(--color-ink);background:transparent}.code-editor #source::selection{background:color-mix(in srgb,var(--color-silver) 53.33%,transparent);-webkit-text-fill-color:transparent}.syntax-keyword{color:var(--color-lavender-deep)}.syntax-constant{color:var(--color-pink-deep)}.syntax-type{color:var(--color-code-type)}.syntax-function{color:var(--color-pink-deep)}.syntax-string{color:var(--color-code-string)}.syntax-comment{color:var(--color-code-comment)}.syntax-number{color:var(--color-code-number)}.syntax-operator{color:var(--color-blue-deep)}#lesson-content code{font-family:var(--font-code);background:color-mix(in srgb,var(--color-white) 50.2%,transparent);padding:1px 4px;border-radius:3px}@media(max-width:760px){.code-editor #source,.code-editor #source-highlight{font-size:13px;padding:18px 14px}}@media(forced-colors:active){.code-editor 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h3{font-size:17px}}button:hover:not(:disabled){filter:brightness(1.04);border-color:var(--color-blue)}.primary:hover:not(:disabled){border-color:var(--color-pink-deep)}.main-nav a:first-child{color:var(--color-blue-deep)}.extension-card{display:grid;grid-template-columns:1fr auto;gap:var(--space-4);padding:var(--space-6);margin-bottom:var(--space-6);border:1px solid var(--color-line);border-radius:var(--radius-panel);background:linear-gradient(120deg,var(--color-lavender-soft),var(--color-surface),var(--color-cyan-soft))}.extension-eyebrow{font-size:12px;font-weight:600;color:var(--color-blue);margin-bottom:var(--space-2)}.extension-card h2{font:600 21px/1.4 var(--font-display);color:var(--color-blue-deep);margin:0 0 var(--space-2)}.extension-card p,.extension-install li{font-size:14px;line-height:1.7}.extension-downloads{align-self:center;text-align:center}.download-extension{display:flex;flex-direction:column;gap:var(--space-1);padding:var(--space-3) 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.download-extension{margin:0;min-width:220px;align-items:center;justify-content:center}.masthead .editor-install-link{flex-basis:100%;padding:4px;font-size:14px}@media(max-width:480px){.masthead .editor-download-options .download-extension{width:100%;min-width:0}}.wordmark{position:relative}.wordmark .logo-webgl{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;opacity:0;object-fit:contain;transform:perspective(700px) rotateX(var(--tilt-x,0deg)) rotateY(var(--tilt-y,0deg));transition:transform .18s ease-out}.wordmark.has-webgl img{opacity:0}.wordmark.has-webgl .logo-webgl{opacity:1}@media(prefers-reduced-motion:reduce),(forced-colors:active){.wordmark.has-webgl img{opacity:1}.wordmark .logo-webgl{display:none}}