:root{font-family:Inter,Segoe UI,sans-serif;color:#35364f;background:#f8f7fc;font-synthesis:none;font-size:14px;line-height:1.5;font-weight:400;--accent:#61518f;--muted:#69647c;--line:#e3deed;--accent-soft:#eee8f8}*{box-sizing:border-box}body{margin:0}button,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:default;opacity:.45}button,a,summary{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #9b84ba;outline-offset:4px}textarea:focus-visible{outline:2px solid #6a5893;outline-offset:-2px}button{touch-action:manipulation}svg{flex-shrink:0}.topbar{height:82px;display:flex;align-items:center;padding:0 42px;gap:45px;border-bottom:1px solid var(--line);background:#faf9fd}.brand{display:flex;align-items:center;gap:12px;font-size:23px;letter-spacing:-1px;font-weight:650}.brand b{font-size:16px;font-weight:450;letter-spacing:-.4px;margin-left:6px}.brand-icon{width:43px;height:43px;background:#e9e2f5;border:1px solid #d8cdeb;border-radius:12px;display:grid;place-items:center}.brand-amp{color:#6e6387;font-size:18px;padding:0 3px}.topbar-section{align-self:stretch;display:flex;align-items:center;gap:8px;font-size:12px;border-bottom:2px solid #665985;padding:0 9px}.prototype-label{margin-left:auto;display:flex;align-items:center;gap:7px;color:#6c657c;font-size:11px;padding:5px 11px;border:1px solid #dcd7e7;border-radius:20px}.prototype-label>span,.preview-dot{width:6px;height:6px;border-radius:50%;background:#6b5a90}.breadcrumb{font-size:10px;font-weight:600;letter-spacing:1.5px;color:#706981;margin-top:29px}.breadcrumb>span{padding:0 13px;color:#706883}main{padding:0 42px;max-width:1800px;margin:0 auto}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:30px}.page-heading h1{font-size:34px;letter-spacing:-1.2px;line-height:1.25;font-weight:620;margin:15px 0 9px}.page-heading h1>span{color:#6a5893}.page-heading p{margin:0;font-size:13px;color:var(--muted)}.lesson-tag{display:flex;gap:8px;align-items:center;font-size:10px;color:#6f6684;margin-top:20px;white-space:nowrap}.lab-layout{display:grid;grid-template-columns:274px minmax(0,1fr);gap:24px;align-items:start}.panel{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden}.brief{padding:23px 22px;background:#fbfbfd}.exercise-kicker{display:flex;align-items:center;gap:9px;font-size:9px;letter-spacing:1px;color:#706783;font-weight:650}.number{width:29px;height:29px;border-radius:8px;background:#e0daed;display:grid;place-items:center;font-size:12px;letter-spacing:0;color:#584a78}.brief h2{font-size:25px;font-weight:600;letter-spacing:-.7px;line-height:1.25;margin:22px 0 13px}.brief-intro{font-size:12px;color:#726d7e;line-height:1.85;margin-bottom:17px}.tags{display:flex;flex-wrap:wrap;gap:6px}.tags>span{font-size:9px;border:1px solid #dfdae9;border-radius:5px;padding:3px 7px;color:#706783;background:#f2eff8}.brief-divider{height:1px;background:var(--line);margin:24px 0 20px}.criteria-heading{display:flex;justify-content:space-between;align-items:center}.criteria-heading h3{font-size:12px;font-weight:650;margin:0}.criteria-heading>span{font-size:10px;color:#6f6685;background:#e8e3f2;padding:2px 7px;border-radius:5px}.criteria-list{list-style:none;padding:0;margin:19px 0 26px;display:grid;gap:15px}.criteria-list li{display:flex;gap:10px;align-items:start;font-size:11px;color:#686177}.criterion-icon{width:19px;height:19px;border:1px solid #dad4e6;display:grid;place-items:center;border-radius:50%;color:#6f6784;font-size:9px;flex-shrink:0;margin-top:1px}.criteria-list summary{cursor:pointer;list-style:none;line-height:1.8}.criteria-list summary::-webkit-details-marker{display:none}.criteria-list summary:hover{color:var(--accent)}.criteria-list details p{font-size:11px;line-height:1.7;color:#716a81;margin:6px 0 0}.criteria-list .passed .criterion-icon{background:#e2dcef;color:#554676;border-color:#b0a5cb;font-size:0}.criteria-list .passed .criterion-icon:after{content:"✓";font-size:12px}.criteria-list .failed .criterion-icon{border-color:#dcc8ae;color:#b0875b}.hint-card{background:#ede9f5;border:1px solid #ded9eb;padding:14px;border-radius:10px}.hint-card>div:first-child{display:flex;gap:7px;align-items:center;color:#6a5b8c}.hint-card strong{font-size:10px;font-weight:600}.hint-card p{font-size:10px;color:#706882;line-height:1.7;margin:9px 0}.hint-card .text-button{font-size:11px;color:#594a7b;padding:0;min-height:32px;display:flex;justify-content:space-between;width:100%}.hint-card #hint-content p{border-top:1px solid #d6d0e5;padding-top:10px}.brief-footnote{display:flex;gap:7px;align-items:center;font-size:9px;color:#716a80;margin:18px 0 0}.workspace{min-width:0}.workbench{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,1fr);gap:18px;align-items:stretch}.panel-heading{display:flex;align-items:center;justify-content:space-between;height:55px;padding:0 18px;border-bottom:1px solid var(--line)}.panel-heading h2{font-size:12px;font-weight:600;display:flex;align-items:center;gap:8px;margin:0}.panel-heading>span{font-size:9px;color:#706882}.panel-heading .preview-dot{background:#6c5e8d}.editor-tabbar{display:flex;border-bottom:1px solid var(--line);background:#f8f7fb;padding-left:14px;height:47px;gap:5px}.editor-tabbar button{border:0;border-bottom:2px solid transparent;background:none;display:flex;align-items:center;gap:7px;padding:0 13px;color:#726c7e;font-size:11px}.editor-tabbar button[aria-selected=true]{border-bottom-color:#68598c;color:#61518f;font-weight:650;background:#fff}.editor-tabbar button>span:last-child{font-size:9px;opacity:.55;font-weight:400}.language-dot{width:6px;height:6px;border-radius:2px}.html-dot{background:#d6a489}.css-dot{background:#819fd0}.editor-tools{height:37px;display:flex;align-items:center;justify-content:space-between;padding:0 15px;background:#f8f7fb;border-bottom:1px solid #eae7f1;color:#716a80;font-size:10px;font-family:Consolas,monospace}.editor-tools>div{display:flex;gap:5px}.editor-tools button{border:0;background:none;color:#706883;display:grid;place-items:center;min-width:27px;min-height:28px;font-size:17px}.editor-pane{height:389px;display:flex;position:relative;background:#fcfbfe}.line-numbers{flex-shrink:0;width:37px;white-space:pre;text-align:right;padding:21px 8px 20px 0;color:#b9b0cf;font:12px/1.85 Consolas,monospace;overflow:hidden;-webkit-user-select:none;user-select:none}.editor-pane textarea{display:block;width:100%;height:100%;resize:none;white-space:pre;tab-size:2;border:0;background:transparent;padding:21px 15px 20px 10px;color:#514964;font:12px/1.85 Consolas,Courier New,monospace;overflow:auto;min-width:0}.symbol-toolbar{display:flex;padding:7px 10px;gap:5px;overflow:auto;border-top:1px solid var(--line);background:#f8f6fb}.symbol-toolbar button{border:1px solid #dfdbe9;background:#fff;color:#6e6288;font:12px Consolas,monospace;min-width:27px;min-height:29px;border-radius:4px}.symbol-toolbar button:hover{background:#e8e4f2}.editor-footer,.preview-footer{height:34px;display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:8px;padding:0 13px;border-top:1px solid var(--line);color:#716a81;background:#f9f8fc}.editor-footer>span:first-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.preview-controls{height:47px;display:flex;justify-content:space-between;align-items:center;padding:0 14px;background:#f8f7fb;border-bottom:1px solid var(--line)}.segmented{display:flex;gap:3px;border:1px solid #dcd7e7;border-radius:6px;padding:3px;background:#ece9f4}.segmented button{display:flex;align-items:center;gap:5px;border:0;border-radius:4px;background:transparent;color:#706883;font-size:9px;padding:4px 8px}.segmented button[aria-pressed=true]{background:#fff;color:#534671;box-shadow:0 1px 3px #3630440c}.preview-controls>span{font-size:9px;font-family:Consolas,monospace;color:#706883}.preview-source{height:37px;display:flex;align-items:center;justify-content:space-between;padding:0 14px;border-bottom:1px solid #e2deeb}.preview-source button{display:flex;align-items:center;gap:5px;font-size:9px;border:0;background:transparent;color:#706982;padding:5px 0}.preview-source button[aria-pressed=true]{color:#4d406b;font-weight:600}.preview-stage{height:433px;background:#eae7f0;padding:20px 16px;overflow:auto;display:flex;justify-content:center;align-items:flex-start;background-image:radial-gradient(#cec7de 1px,transparent 1px);background-size:15px 15px}.preview-stage:has(#desktop[aria-pressed=true]){height:433px}#preview-holder{flex-shrink:0;border-radius:10px;box-shadow:0 4px 16px #36304408;background:#ebe8f1;overflow:hidden}#preview-holder iframe{border:0;display:block;transform-origin:top left;max-width:none;background:#ebe8f1}.preview-footer>span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.preview-footer>span:last-child{white-space:nowrap}.action-bar{display:flex;gap:10px;align-items:center;margin:17px 0 22px}.text-button{border:0;background:transparent;color:#716a80;font-size:10px;display:inline-flex;gap:7px;align-items:center;min-height:38px;padding:0 2px}.autosave-note{color:#706883;font-size:9px;margin-right:auto}.button{border:1px solid #d6d0e4;border-radius:7px;min-height:40px;padding:10px 14px;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-size:10px;font-weight:600;white-space:nowrap}.primary{background:#61518f;color:#fff;border-color:#61518f;box-shadow:0 2px 3px #3d345210}.primary:hover{background:#4e4078}.secondary{background:#fff;color:#655a80}.secondary:hover{background:#ece8f4}.results-panel{padding:21px 23px;background:#f1eef8;border-color:#dcd6e9}.results-heading{display:flex;gap:13px;align-items:center}.results-icon{display:grid;place-items:center;width:41px;height:41px;background:#dfd8ee;border:1px solid #d3cbe6;border-radius:10px;color:#6a5a91;flex-shrink:0}.results-heading h2{margin:0 0 4px;font-size:13px;font-weight:600}.results-heading p{font-size:10px;color:#706783;margin:0;line-height:1.8}.results-badge{font-size:9px;white-space:nowrap;margin-left:auto;border:1px solid #d8d1e7;border-radius:20px;padding:5px 10px;color:#6d608b}.results-list{display:grid;grid-template-columns:1fr 1fr;gap:13px 22px;margin-top:20px;border-top:1px solid #dcd6e9;padding-top:20px}.results-list[hidden]{display:none}.result{display:flex;gap:9px;align-items:flex-start;font-size:11px}.result>span{font-size:16px;line-height:1.2;color:#aa8964}.result.pass>span{color:#65558b}.result strong{font-size:10px;font-weight:600}.result p{font-size:10px;color:#716a81;line-height:1.65;margin:4px 0}.sandbox-note{display:flex;gap:8px;align-items:start;font-size:9px;color:#716a81;margin:16px 3px;line-height:1.8}.sandbox-note svg{margin-top:1px}.page-footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:35px;padding:21px 0 25px;font-size:9px;color:#706784}.page-footer b{font-weight:400;padding:0 7px}.measurement-area{position:fixed;left:-20000px;top:0;pointer-events:none;z-index:-1}.measurement-area iframe{display:block;border:0;max-width:none}.expanded{position:fixed;inset:25px;z-index:10;box-shadow:0 20px 100px #36304455;display:flex;flex-direction:column}.expanded .editor-pane{flex:1}.save-error{color:#a15d38!important}.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}.skip-link{position:fixed;top:-100px;left:15px;z-index:30;background:#61518f;color:#fff;padding:12px;border-radius:6px}.skip-link:focus{top:12px}dialog{border:1px solid #d9d4e6;border-radius:16px;max-width:650px;width:calc(100% - 32px);max-height:85vh;padding:30px;color:#61518f;background:#fbfbfd;box-shadow:0 20px 100px #36304433}dialog::backdrop{background:#2c253c66}dialog h2{font-size:24px;letter-spacing:-.5px}dialog p{font-size:13px;line-height:1.8;color:#706883}dialog pre{background:#2d253e;border-radius:9px;padding:20px;color:#d8cfec;font:12px/1.8 Consolas,monospace;overflow:auto}.dialog-close{float:right;min-width:36px;justify-content:center}.eyebrow{font-size:10px;letter-spacing:1px;color:#6e6288}@media(min-width:1600px){.editor-pane{height:470px}.preview-stage{height:514px}.lab-layout{grid-template-columns:300px minmax(0,1fr)}.brief{padding:27px}.page-heading h1{font-size:39px}}@media(max-width:1200px){main{padding:0 25px}.topbar{padding:0 25px}.lab-layout{grid-template-columns:235px minmax(0,1fr);gap:18px}.brief{padding:19px 16px}.workbench{gap:13px}.lesson-tag,.autosave-note{display:none}.action-bar .text-button{margin-right:auto}.button{padding:10px}.editor-tabbar{padding-left:5px}.editor-tabbar button{padding:0 9px}.editor-tabbar button>span:last-child{display:none}.results-badge{display:none}.segmented button>span{display:none}.preview-controls{padding:0 10px}.page-heading h1{font-size:30px}.symbol-toolbar button{min-width:29px}}@media(max-width:960px){.lab-layout{grid-template-columns:1fr}.brief{display:grid;grid-template-columns:1fr 1.4fr;gap:0 30px}.exercise-kicker,.brief h2,.brief-intro,.tags{grid-column:1}.brief-divider{display:none}.criteria-heading{grid-column:2;grid-row:1}.criteria-list{grid-column:2;grid-row:2/6;gap:9px;margin:15px 0}.hint-card{grid-column:1/-1;margin-top:20px}.brief-footnote{grid-column:1/-1}.criteria-list li{font-size:11px}.brief h2 br{display:none}.brief h2{margin:15px 0}.editor-pane{height:360px}.preview-stage{height:404px}.symbol-toolbar button{min-width:32px;min-height:29px}}@media(max-width:620px){.topbar{height:70px;padding:0 18px;gap:12px}.brand{font-size:20px}.brand b{display:block;margin:0;font-size:10px;letter-spacing:1px}.brand-icon{width:37px;height:37px}.topbar-section{display:none}.prototype-label{font-size:9px}main{padding:0 16px}.breadcrumb{font-size:8px;margin-top:24px}.page-heading{margin-bottom:23px}.page-heading h1{font-size:29px;max-width:330px;line-height:1.2}.page-heading p{font-size:12px;line-height:1.8;max-width:340px}.brief{display:block;padding:22px}.brief h2{font-size:23px}.brief-intro{font-size:12px}.tags{margin-bottom:23px}.criteria-list{gap:12px;margin:17px 0}.hint-card{margin-top:20px}.workbench{grid-template-columns:1fr;gap:18px}.panel-heading{height:51px}.editor-pane{height:320px}.editor-pane textarea,.line-numbers{font-size:16px;line-height:1.65;padding-top:18px}.symbol-toolbar button{min-height:40px;min-width:36px;font-size:14px}.editor-tools button{min-width:36px;min-height:34px}.editor-tabbar button{min-width:90px}.preview-stage{height:440px}.preview-controls .segmented button>span{display:inline}.preview-controls{height:52px}.segmented button{padding:7px 10px}.preview-source{height:44px}.preview-source button{min-height:40px;font-size:10px}.action-bar{flex-wrap:wrap;gap:8px;margin-bottom:18px}.action-bar #reset{width:100%;margin:0}.action-bar .button{flex:1;min-height:46px;font-size:11px}.results-panel{padding:20px 16px}.results-heading{align-items:flex-start;gap:10px}.results-heading h2{font-size:13px}.results-heading p{font-size:11px}.results-list{grid-template-columns:1fr}.result strong,.result p{font-size:11px}.sandbox-note{font-size:10px}.page-footer{display:block;font-size:9px;margin-top:25px}.page-footer>span{display:block;margin:5px 0}.expanded{inset:10px}.editor-footer{font-size:8px}dialog{padding:22px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}.skip-link{visibility:hidden}.skip-link:focus{visibility:visible}.mobile-editor-link{display:none}.panel-heading>span,.preview-controls>span,.preview-source button,.editor-tools,.tags>span,.exercise-kicker,.topbar-section{font-size:11px}.editor-footer,.preview-footer,.sandbox-note,.page-footer,.brief-footnote,.autosave-note{font-size:10px}.criteria-list li,.brief-intro,.result strong{font-size:12px}.hint-card strong,.hint-card p,.results-heading p,.result p,.button,.lesson-tag{font-size:11px}@media(max-width:960px){.mobile-editor-link{display:inline-flex;grid-column:1;margin-top:15px;justify-self:start}.criteria-list{grid-row:2/7}}.criteria-list .passed .criterion-icon{background:#e2f2ef;color:#28665c;border-color:#b5dcd3}.result.pass>span{color:#28665c}.academy-header{gap:25px;flex-wrap:wrap;min-height:82px;height:auto;padding-top:15px;padding-bottom:15px}.course-nav{display:flex;align-items:center;gap:6px;flex:1;justify-content:center}.course-nav a{font-size:12px;padding:10px 12px;border-radius:7px;color:#675e7c;white-space:nowrap}.course-nav a[aria-current=page]{background:#e0daed;color:#61518f;font-weight:650}.course-nav a:hover{background:#ebe8f3}#connection{font-size:11px;color:#645880;white-space:nowrap}#install[hidden],#storage-warning[hidden],#update-banner[hidden]{display:none}#storage-warning{padding:13px 25px;background:#fff0d7;color:#79532d;font-size:13px}#update-banner{position:fixed;bottom:18px;right:18px;max-width:440px;z-index:40;padding:18px;border-radius:12px;background:#e7e2f3;border:1px solid #b0a5cb;box-shadow:0 10px 40px #36304422;display:flex;flex-wrap:wrap;gap:12px;align-items:center}.course-main{max-width:1280px;margin:0 auto;padding:40px 32px 55px}.course-heading{margin-bottom:30px}.course-heading h1{font-size:36px;letter-spacing:-1.2px;line-height:1.25;margin:10px 0 14px;font-weight:620}.course-heading>p:last-child{color:#706982;font-size:14px;max-width:760px;line-height:1.9}.eyebrow{font-size:11px;font-weight:650;letter-spacing:1.4px}.learning-hero{padding:36px;background:#eee8f8;display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:35px}.pill{display:inline-block;font-size:10px;letter-spacing:1px;padding:6px 10px;border:1px solid #cbc3df;border-radius:20px;background:#f3f0f9}.learning-hero h2{font-size:35px;line-height:1.25;letter-spacing:-1px;margin:20px 0 15px}.learning-hero p{font-size:13px;line-height:1.9;color:#706883;max-width:460px}.learning-hero .text-button{margin-left:15px;font-size:12px}.hero-card{background:#edf3fc;padding:25px;border:1px solid #d1cae2;border-radius:13px;transform:rotate(-2deg);box-shadow:0 12px 30px #3d345208}.hero-card>span{font-size:9px;letter-spacing:1.4px;color:#6e6288}.hero-code{padding:28px 0;font:14px/2 Consolas,monospace;color:#5a4d78}.hero-card p{font-size:11px;margin:0}.course-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:23px 0 30px}.course-stats>div{border:1px solid #e3deed;border-radius:10px;background:#fff;padding:20px 25px}.course-stats strong{display:block;font-size:25px;font-weight:600}.course-stats span{font-size:12px;color:#706784}.course-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.course-card{padding:26px}.course-card h2{font-size:20px;letter-spacing:-.4px}.course-card p{font-size:13px;line-height:1.9;color:#706883}.course-card b{font-size:12px;color:#5d4e81}.course-card:hover{border-color:#6a5893}.course-note{font-size:12px;line-height:1.9;color:#706784;margin:25px 0}.course-note a,.progress-columns a{text-decoration:underline;text-underline-offset:3px}.lesson-page{max-width:1200px}.lesson-body{padding:35px}.lesson-body>h2{margin-top:32px;font-size:22px}.lesson-body>p{font-size:14px;line-height:2;color:#635b76}.lesson-body blockquote{margin:25px 0;padding:20px 24px;border-left:3px solid #6a5893;background:#efebf7;line-height:1.9;color:#6a6082}.learning-note{padding:18px 22px;border-radius:8px;background:#ede9f7;border-left:3px solid #6a5893;margin:25px 0;font-size:13px}.learning-note p{line-height:1.9;color:#605280}.lesson-example{display:grid;grid-template-columns:minmax(0,1fr) 377px;gap:20px;align-items:start}.lesson-example pre,.revealed-solution pre,.hint-choice pre{white-space:pre;overflow:auto;max-width:100%;font:12px/1.9 Consolas,monospace;background:#2d263e;color:#dfd8ef;border-radius:8px;padding:18px}.lesson-example>div{min-width:0}.lesson-example pre{max-height:360px}.lesson-preview{overflow:auto;border:1px solid #e3deed;border-radius:10px;background:#ebe8f1;max-width:100%}.lesson-preview iframe{border:0;display:block;max-width:none}.lesson-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}.lesson-summary{background:#e6e1f3;padding:20px;border-radius:8px}.narrow{max-width:850px}.quiz-panel{padding:30px}.quiz-panel h2{font-size:21px;line-height:1.6}.quiz-panel progress{width:100%;height:8px;accent-color:#6b5b90}.quiz-panel>.button{margin:10px 10px 0 0}.quiz-options{display:grid;gap:12px;border:0;padding:0;margin:25px 0}.quiz-options label{display:flex;gap:12px;align-items:center;padding:16px;background:#f5f3fa;border:1px solid #d7d0e6;border-radius:8px;cursor:pointer;min-height:50px}.quiz-options label:has(input:checked){background:#e2dcf0;border-color:#6a5893}.quiz-options input{accent-color:#544675;width:18px;height:18px;flex-shrink:0}.quiz-feedback{padding:20px;background:#e7e2f3;border-radius:10px;line-height:1.9}.quiz-feedback p{color:#675d7e;font-size:14px}.quiz-review{border-bottom:1px solid #dfdbe9;padding:15px 0}.quiz-review h2{font-size:16px}.quiz-review p{font-size:13px;line-height:1.9;color:#6f6684}.guided-list{display:grid;gap:15px}.guided-card{display:flex;gap:22px;align-items:center;padding:24px}.stage-number{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:#e0daef;font-size:18px;color:#5d4e81;flex-shrink:0}.guided-card>div{flex:1}.guided-card h2{margin:0 0 7px;font-size:19px}.guided-card p{font-size:13px;line-height:1.9;color:#706783;max-width:780px;margin:0 0 5px}.guided-card .course-note{font-size:11px;margin:0}.locked-label{font-size:11px;color:#706981;padding:12px}.guided-heading{padding-bottom:0;max-width:1800px;padding-left:42px;padding-right:42px}.stage-concept{padding:18px 22px;border-left:3px solid #6a5893;background:#e9e4f3;border-radius:0 9px 9px 0}.stage-concept b{font-size:12px}.stage-concept p{font-size:13px;color:#6f6683;line-height:1.9;margin:6px 0 0}.stage-navigation{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0}.stage-pill{display:grid;place-items:center;width:38px;height:38px;background:#fff;border:1px solid #d5cfe4;border-radius:9px;color:#6d6289;font-size:12px}.stage-pill.active{background:#61518f;color:#fff;border-color:#61518f}.stage-pill.locked{opacity:.45}.stage-success{display:flex;justify-content:space-between;align-items:center;gap:20px;background:#e0daef;border:1px solid #bbaed8;border-radius:10px;padding:20px}.stage-success p{font-size:12px;color:#706784;margin:6px 0 0}.progress-columns{display:grid;grid-template-columns:1fr 1.3fr;gap:20px}.progress-columns small{display:block;color:#706883;font-size:11px;margin-left:17px}.import-label{position:relative;cursor:pointer;margin-left:10px}.import-label:focus-within{outline:3px solid #9b84ba;outline-offset:3px}.hint-card{min-width:0}.hint-card .button{white-space:normal;font-size:11px;padding:8px 12px}.hint-choice{padding:0;border:0;min-width:0;margin-top:18px}.hint-choice legend{font-weight:650;font-size:12px;line-height:1.6}.hint-choice label{display:block;border:1px solid #cec6e1;padding:10px;border-radius:8px;background:#faf8fd;margin-bottom:10px;cursor:pointer}.hint-choice label:has(input:checked){border-color:#6a5893;background:#e2dcef}.hint-choice input{accent-color:#594a7b;width:16px;height:16px;vertical-align:middle;margin-right:7px}.hint-choice label>span{font-size:11px}.hint-choice pre{font-size:11px;padding:10px}.hint-explanations{padding-top:12px;margin-top:12px;border-top:1px solid #d2cae3}.hint-explanations strong{font-size:12px}.solution-request{margin-top:18px;font-size:12px;line-height:1.8}.solution-request summary{cursor:pointer}.revealed-solution{font-size:12px;min-width:0}.revealed-solution h3{font-size:14px}.revealed-solution pre{max-height:320px;font-size:11px}#lab-slot .page-heading[hidden]{display:none}@media(max-width:1100px){.academy-header{gap:12px}.academy-header .brand b{display:none}.course-nav a{padding:8px;font-size:11px}#connection{font-size:10px}.hero-code{font-size:12px}.lesson-example{grid-template-columns:1fr}.lesson-preview{width:377px}.course-heading h1{font-size:31px}}@media(max-width:760px){.academy-header{padding:15px 18px;align-items:center}.academy-header .brand{font-size:20px}.course-nav{order:3;flex-basis:100%;justify-content:flex-start;overflow:auto;padding-top:5px;gap:4px}.course-nav a{min-height:42px;padding:10px;font-size:12px}.academy-header #connection{margin-left:auto}.course-main{padding:28px 18px 40px}.course-heading h1{font-size:29px}.course-heading>p:last-child{font-size:13px}.learning-hero{grid-template-columns:1fr;padding:25px;gap:20px}.learning-hero h2{font-size:30px}.learning-hero .text-button{display:flex;margin:12px 0 0}.hero-card{padding:20px}.course-stats{gap:8px}.course-stats>div{padding:15px 12px}.course-stats strong{font-size:22px}.course-stats span{font-size:10px}.course-grid,.progress-columns{grid-template-columns:1fr}.course-card,.lesson-body{padding:22px}.lesson-body>h2{font-size:20px}.guided-card{padding:20px;gap:15px;flex-wrap:wrap;align-items:flex-start}.guided-card>div{min-width:180px}.guided-card>.button,.locked-label{margin-left:61px}.guided-card h2{font-size:18px}.stage-success{align-items:flex-start;flex-direction:column}.quiz-panel{padding:22px}.quiz-panel h2{font-size:19px}.lesson-preview{width:100%}.hint-choice pre{font-size:12px}.course-main.guided-heading{padding-bottom:0}}.course-nav{min-width:0}.quiz-options legend{font-weight:600;font-size:16px;line-height:1.7;margin-bottom:12px}.course-card li{font-size:14px;line-height:1.8;margin-bottom:8px}.course-card li a{text-decoration:underline;text-underline-offset:3px}.course-card{min-width:0}.course-card ul{padding-left:20px}.course-nav{flex-wrap:wrap}#install-here[hidden]{display:none}@media(max-width:760px){.course-nav{flex-wrap:nowrap}}.practice-summary{margin-bottom:24px}.practice-summary h2{margin-top:0}.practice-summary ul{padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 28px}.practice-summary li{display:flex;gap:12px;justify-content:space-between;font-size:13px}.practice-summary li a{text-decoration:underline;text-underline-offset:3px}.practice-summary li span{white-space:nowrap;color:var(--muted)}.practice-summary p{margin-bottom:0}@media(max-width:760px){.practice-summary ul{grid-template-columns:1fr}}.document-info{padding:18px 22px;margin-bottom:18px}.document-info h2{font-size:18px;margin:0 0 10px}.document-info p{font-size:12px;line-height:1.8}.document-info dl{display:grid;grid-template-columns:110px minmax(0,1fr);gap:7px 12px;font-size:12px}.document-info dt{font-weight:600}.document-info dd{margin:0;overflow-wrap:anywhere}@media(max-width:620px){.document-info{padding:18px}.document-info dl{grid-template-columns:1fr;gap:4px}.document-info dd{margin-bottom:8px}}.site-tabs{overflow:auto;padding-left:5px}.site-tabs button{white-space:nowrap;font-size:11px;min-width:max-content}.site-preview-nav{display:flex;gap:8px;align-items:center;flex-wrap:wrap;padding:12px;border-bottom:1px solid var(--line);font-size:12px}.site-preview-nav select{font:inherit;max-width:100%;border:1px solid var(--line);border-radius:5px;padding:7px;background:#fff;color:var(--accent)}#site-location{flex-basis:100%;overflow-wrap:anywhere;font:11px Consolas,monospace}@media(max-width:620px){.site-tabs button{min-width:max-content;font-size:12px}.site-preview-nav label{flex-basis:100%}}.manual-review{padding:22px;margin-top:20px}.manual-review fieldset{border:0;padding:0;margin:0;min-width:0}.manual-review legend{font-size:17px;font-weight:600}.manual-review p{font-size:12px;line-height:1.8;color:var(--muted)}.manual-review label{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;padding:10px 0}.manual-review input{width:18px;height:18px;flex-shrink:0;accent-color:var(--accent);margin-top:3px}.site-export{padding:24px;margin:18px 0;overflow-wrap:anywhere}.site-export h2{font-size:1.2rem}.site-export p,.site-export li{font-size:.9rem;line-height:1.65}.export-actions{display:flex;gap:12px;flex-wrap:wrap}.export-actions .button{white-space:normal}.site-export summary{cursor:pointer}.preview-controls:has(#responsive-width){flex-wrap:wrap;gap:10px}#responsive-width{font:inherit;padding:6px;border:1px solid #d7cfe7;border-radius:6px;color:#35364f;background:#fff}.workspace:has(#responsive-width) .results-badge{white-space:normal;max-width:100%;overflow-wrap:anywhere}.visual-comparison{padding:20px;margin:18px 0;min-width:0}.visual-comparison h2{font-size:1.2rem}.visual-comparison h3{font-size:1rem}.visual-comparison p{line-height:1.6;font-size:.9rem}.comparison-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.comparison-columns>section{min-width:0}.comparison-stage{overflow:hidden;background:#f8f7fc;border:1px solid #d7cfe7;border-radius:10px}.comparison-stage iframe{display:block;border:0}.comparison-table{max-width:100%;overflow-x:auto}.comparison-table table{border-collapse:collapse;width:100%;font-size:.85rem}.comparison-table caption{text-align:left;padding:12px 0;font-weight:600}.comparison-table th,.comparison-table td{text-align:left;padding:10px;border-bottom:1px solid #e3ddef;overflow-wrap:anywhere}.comparison-table th:first-child{width:55%}@media(max-width:800px){.comparison-columns{grid-template-columns:minmax(0,1fr)}}.comparison-table th:first-child{width:45%}.comparison-table th:not(:first-child),.comparison-table td{white-space:nowrap}.css-quick-reference summary{cursor:pointer;font-weight:600}.css-quick-reference dt{font-weight:600;margin-top:16px}.css-quick-reference dd{margin:4px 0 12px;overflow-wrap:anywhere}.css-quick-reference code{white-space:normal}.css-quick-reference small{display:block;margin-top:4px}.fundamentals-readout{padding:16px;font-size:.9rem;line-height:1.7;overflow-wrap:anywhere}
