:root{color:#25384a;font-synthesis:none;--navy:#0f2a44;--ink:#25384a;--muted:#536575;--gold:#c8a66b;--line:#ddd7cd;--blue:#e9f1f8;--mint:#eaf5ef;--pink:#fde9ef;--warm:#f7f2e8;--header:108px;--sidebar:258px;background:#fcfbf8;font-family:Pretendard,Noto Sans KR,system-ui,Malgun Gothic,sans-serif;font-size:17px;line-height:1.7}*{box-sizing:border-box}body{margin:0}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:var(--navy);text-underline-offset:4px}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}h1,h2,h3,p{margin:0}h1,h2,h3{color:var(--navy);word-break:keep-all;line-height:1.35}h1{letter-spacing:-1.2px;font-size:32px}h2{letter-spacing:-.6px;font-size:22px}h3{font-size:19px}p+p{margin-top:12px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline-offset:4px;outline:3px solid #176b8a}img,video{max-width:100%}[hidden]{display:none!important}.icon{vertical-align:middle;flex-shrink:0;width:24px;height:24px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:100;background:var(--navy);color:#fff;padding:12px;position:fixed;top:-80px;left:16px}.skip-link:focus{top:12px}.button{background:var(--navy);color:#fff;border:1px solid var(--navy);border-radius:9px;justify-content:center;align-items:center;gap:9px;min-height:46px;padding:10px 18px;font-size:15px;font-weight:650;line-height:1.5;text-decoration:none;transition:background .15s,box-shadow .15s;display:inline-flex}.button:hover{background:#1c4265;box-shadow:0 3px 9px #0f2a4417}.button.secondary{color:var(--navy);background:#fff;border-color:#aeb9c2}.button.secondary:hover{background:#f4f7f9}.button.gold{background:var(--gold);color:var(--navy);border-color:#b7975f;border-radius:28px;padding:12px 24px}.button.compact{min-height:44px;padding:8px 13px;font-size:14px}.button-row{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.text-link,.hero-link{border-bottom:1px solid #6a7b89;padding:5px 0;font-weight:650;text-decoration:none}.text-button{color:var(--navy);background:0 0;border:0;min-height:44px;padding:5px 10px;text-decoration:underline}.small{font-size:14px}.muted{color:var(--muted)}.center{text-align:center}.eyebrow{color:#806020;letter-spacing:1.6px;text-transform:uppercase;font-size:12px;font-weight:750}.tag{background:var(--warm);color:#806020;white-space:nowrap;border-radius:6px;padding:4px 10px;font-size:12px;font-weight:650;display:inline-block}.blue{color:#164c73;background:var(--blue)!important}.mint{color:#176347;background:var(--mint)!important}.pink{color:#972b58;background:var(--pink)!important}.warm,.gold{background:var(--warm);color:#806020}.rose{background:var(--pink);color:#972b58}.app-header{height:var(--header);border-bottom:1px solid var(--line);z-index:20;background:#fff;align-items:center;gap:24px;padding:0 30px;display:flex;position:sticky;top:0}.brand{flex-shrink:0;align-items:center;display:flex}.brand-full{object-fit:contain;width:248px;max-height:90px}.brand-mobile{display:none}.header-course{white-space:nowrap;border-left:1px solid #c0c7cd;padding-left:24px;font-size:14px;line-height:1.6}.header-course strong,.header-course span{display:block}.header-course span{color:var(--muted);font-size:12px}.header-nav{white-space:nowrap;gap:22px;margin-left:auto;font-size:15px;font-weight:650;display:flex}.header-nav a{text-decoration:none}.auth-control{flex-shrink:0;align-items:center;gap:10px;margin-left:auto;display:flex}.account-chip{align-items:center;gap:7px;max-width:180px;font-size:14px;text-decoration:none;display:flex}.account-chip span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.menu-toggle{min-width:44px;min-height:44px;color:var(--navy);background:0 0;border:0;font-size:24px;display:none}.app-layout{grid-template-columns:var(--sidebar) minmax(0,1fr);max-width:1920px;margin:auto;display:grid}.sidebar{border-right:1px solid var(--line);top:var(--header);height:calc(100dvh - var(--header));overscroll-behavior:contain;background:#fffdfa;padding:20px 14px;position:sticky;overflow-y:auto}.sidebar-intro{border-bottom:1px solid var(--line);margin-bottom:18px;padding:20px 15px 23px}.sidebar-intro p{letter-spacing:1.2px;color:#806020;font-size:10px;font-weight:650}.sidebar-intro strong{letter-spacing:-.7px;color:var(--navy);margin:10px 0;font-size:23px;line-height:1.5;display:block}.sidebar-intro>span{color:var(--muted);font-size:12px}.nav-group{padding-bottom:15px}.nav-group>p{letter-spacing:1px;color:#806020;padding:0 14px 7px;font-size:11px;font-weight:700}.nav-group>a{border-radius:7px;align-items:center;gap:11px;min-height:46px;margin:2px 0;padding:9px 13px;font-size:14px;line-height:1.5;text-decoration:none;display:flex}.nav-group>a:hover{background:#f1eee8}.nav-group>a[aria-current=page]{background:linear-gradient(100deg,#eee3cf,#f7f2e8);font-weight:750;box-shadow:inset 3px 0 #b48829}.nav-group .icon{width:21px;height:21px}.sidebar-foot{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;gap:12px;padding:18px 14px;font-size:11px;display:flex}.main-column{min-width:0}main{max-width:1508px;min-height:75vh;margin:auto;padding:30px 34px 60px}.page-heading{margin:4px 0 27px}.page-heading .eyebrow{margin-bottom:10px}.page-heading>p:last-child:not(.eyebrow){color:var(--muted);max-width:780px;margin-top:12px}.hero{background-image:linear-gradient(90deg,#faf7f0 0%,#faf7f0f5 25%,#faf7f0cc 44%,#faf7f008 70%),url(/hero/desk.webp);background-position:50%,100%;background-size:cover;align-items:center;min-height:370px;margin:-30px -34px 24px;display:flex;position:relative;overflow:hidden}.hero-copy{z-index:1;width:58%;min-width:500px;padding:35px 42px;position:relative}.hero .eyebrow{letter-spacing:2px;font-size:11px;font-weight:650}.hero-course{color:#526171;font-size:15px;font-weight:600;margin-top:12px!important}.hero h1{letter-spacing:-2px;margin:13px 0 17px;font-size:48px;line-height:1.23}.hero h1 span{color:#ad8a47}.hero-copy>p:last-of-type{font-size:16px;line-height:1.75}.hero .button-row{gap:24px;margin-top:23px}.hero-link{white-space:nowrap;font-size:14px}.home-shortcuts{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:22px;display:grid}.shortcut{min-height:180px;color:var(--navy);border:1px solid #0f2a4408;border-radius:12px;padding:22px 20px 26px;text-decoration:none;position:relative;box-shadow:0 5px 14px #0f2a4408}.shortcut>.icon{width:30px;height:30px;margin-bottom:12px}.shortcut h2{margin-bottom:8px;font-size:19px;line-height:1.4}.shortcut p{max-width:160px;font-size:13px;line-height:1.6}.circle-arrow{background:#ffffffce;border-radius:50%;place-items:center;width:30px;height:30px;display:grid;position:absolute;bottom:17px;right:16px;box-shadow:0 2px 6px #0f2a4414}.shortcut:hover{transform:translateY(-2px)}.panel{border:1px solid var(--line);background:#fff;border-radius:13px;min-width:0;margin-bottom:22px;padding:24px;box-shadow:0 4px 14px #0f2a4405}.panel>h2{margin-bottom:12px}.panel>h3{margin:22px 0 10px}.panel>p{margin-bottom:16px}.home-bottom{grid-template-columns:1.4fr 1fr;gap:20px;display:grid}.home-bottom>.panel{margin:0}.section-title,.panel-title{justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;display:flex}.section-title h2,.personal-callout h2{align-items:center;gap:12px;display:flex}.section-title h2 .icon,.personal-callout h2 .icon{color:#a17e3e}.learning-flow{justify-content:space-between;gap:10px;padding-top:8px;display:flex;position:relative}.learning-flow:before{content:"";background:#c8a66b;height:1px;position:absolute;top:36px;left:30px;right:30px}.learning-flow a{text-align:center;z-index:1;font-size:12px;line-height:1.5;text-decoration:none;position:relative}.learning-flow a>span{color:#92702f;background:#f5ecdc;border-radius:50%;place-items:center;width:56px;height:56px;margin:0 auto 12px;display:grid}.learning-flow b{font-size:16px;display:block}.personal-callout{background:linear-gradient(120deg,#fff,#faf7f0)}.personal-callout>p{margin:16px 0;font-size:14px}.personal-callout .small{margin:12px 0 0;font-size:12px}.start-note{text-align:center;padding:28px 10px 0}.start-note p{color:var(--muted);margin-top:10px;font-size:14px}.app-footer{border-top:1px solid var(--line);background:#fffdf9;align-items:center;gap:35px;padding:30px 34px;display:flex}.app-footer>img{width:240px}.app-footer p{font-size:12px}.app-footer p+p{margin-top:8px}.app-footer p>span{color:var(--muted);margin-left:12px}.app-footer .small{font-size:11px}.setup-notice{color:#765000;background:#fff2ce;border-bottom:1px solid #e1c681;padding:9px 28px;font-size:13px}.lesson-list{gap:12px;display:grid}.lesson-row{border:1px solid var(--line);background:#fff;border-radius:12px;align-items:center;gap:24px;padding:22px 24px;text-decoration:none;display:flex}.lesson-row:hover{border-color:#b29661;box-shadow:0 4px 12px #0f2a4409}.lesson-row>div{flex:1;min-width:0}.lesson-row h2{margin:4px 0 6px;font-size:21px}.lesson-row p{color:var(--muted);font-size:14px}.lesson-number{border-radius:12px;place-items:center;min-width:62px;height:62px;font-size:24px;font-weight:600;display:grid}.lesson-row>.eyebrow{font-size:10px}.core-grid{grid-template-columns:1fr 1fr;gap:22px;display:grid}.core-grid>.panel{margin:0}.core-grid p{font-size:15px}.example-code,.code-text,.console,.history-code,#variables{tab-size:4;font-family:Cascadia Code,Consolas,Malgun Gothic,monospace;font-size:16px;line-height:1.7}.example-code{white-space:pre;background:#f5f7f9;border:1px solid #e1e7eb;border-radius:8px;margin:18px 0;padding:18px;overflow:auto}.core-grid .text-link{font-size:14px}.workspace-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px;margin:0 0 19px;display:flex}.save-state{color:#536575;align-items:center;gap:8px;font-size:13px;display:inline-flex}.save-state:before{content:"";background:#8796a4;border-radius:50%;flex-shrink:0;width:7px;height:7px}.save-state[data-state=saved]{color:#176347}.save-state[data-state=saved]:before{background:#257c52}.save-state[data-state=dirty],.save-state[data-state=queued]{color:#805300}.save-state[data-state=dirty]:before,.save-state[data-state=queued]:before{background:#b18425}.save-state[data-state=error],.save-state[data-state=conflict]{color:#b3261e}.save-state[data-state=error]:before,.save-state[data-state=conflict]:before{background:#b3261e}.learning-brief{padding:20px 24px}.learning-brief>p{margin-bottom:8px}.steps{gap:12px;margin:17px 0 0;padding:0;list-style:none;display:flex}.steps li{flex:1}.steps button{color:#536575;background:#fff;border:1px solid #dce1e5;border-radius:8px;align-items:center;gap:10px;width:100%;min-height:44px;padding:8px 12px;font-size:13px;display:flex}.steps button span{background:#eef1f4;border-radius:50%;place-items:center;width:25px;height:25px;display:grid}.steps button[aria-current=step]{color:var(--navy);background:#fbf5e9;border-color:#b29661}.steps button[aria-current=step] span{color:#463509;background:#e4d2ab}.workspace-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start;gap:20px;display:grid}.workspace-grid>.panel{padding:0;overflow:hidden}.panel-title{background:#fafbfd;border-bottom:1px solid #dce2e7;margin:0;padding:18px 20px}.panel-title h2{font-size:18px}.code-panel .cm-editor{min-height:340px;max-height:590px;font-family:Consolas,Malgun Gothic,monospace;font-size:16px;line-height:1.7;overflow:auto}.cm-scroller{font-family:inherit!important}.cm-gutters{color:#8793a0!important;background:#f3f5f8!important;border-right:1px solid #e2e7ec!important}.cm-content{padding:16px 4px!important}.code-actions{flex-wrap:wrap;align-items:center;gap:12px;padding:16px 20px;display:flex}.code-panel #runtime-state{padding:0 20px 16px;font-size:12px}.stdin-details{border-top:1px solid #e6e9ed;margin:0 20px;padding:8px 0}.stdin-details summary{font-size:13px}.stdin-details textarea{font-size:15px}.console{white-space:pre-wrap;overflow-wrap:anywhere;color:#1e354b;background:#f7f9fb;min-height:200px;max-height:500px;margin:0;padding:20px;overflow:auto}.console.empty{color:#68798b;text-align:center;justify-content:center;align-items:center;min-height:340px;font-family:inherit;font-size:14px;display:flex}.result-panel #figures img{border-top:1px solid var(--line);background:#fff;width:100%;display:block}.turtle-view{background:#fff;border-top:1px solid #e0e5ea;width:100%;max-height:400px;display:block}.notes-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.notes-grid .panel>p{color:var(--muted);font-size:14px}input:not([type=checkbox]):not([type=radio]):not([type=range]),textarea,select{color:var(--ink);background:#fff;border:1px solid #aeb9c2;border-radius:8px;max-width:100%;min-height:44px;padding:10px 12px}textarea{resize:vertical;width:100%;font-size:16px;line-height:1.7;display:block}label{font-size:15px}select{font-size:14px}.check-label{align-items:center;gap:9px;min-height:44px;font-size:13px;display:inline-flex}.check-label input{width:18px;height:18px;accent-color:var(--navy)}details{border-top:1px solid #e2e6ea;padding:12px 0}details>summary{cursor:pointer;min-height:32px;color:var(--navy);font-size:15px;font-weight:600}details>p{margin:14px 0 5px;font-size:15px}.lesson-help{background:#fffefa}.lesson-help h3{margin-top:20px}.trace-panel{padding:0;overflow:hidden}.trace-panel .trace-controls,.trace-panel>.legend,.trace-panel>#tables,.trace-panel>details{margin:16px 20px}.trace-controls{align-items:center;gap:14px;display:flex}.trace-controls input{accent-color:#a78a50;flex:1;min-width:0}.legend{flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;display:flex}.legend span{border-radius:4px;padding:3px 8px}.new{color:#175b36;background:#e4f3e9}.changed{color:#16496d;background:#e2effa}.removed{color:#922a2a;background:#fce8e8}.table-pair{grid-template-columns:1fr 1fr;gap:20px;display:grid}.table-pair h3{margin-bottom:10px;font-size:15px}.table-scroll{max-width:100%;overflow:auto}table{border-collapse:collapse;white-space:nowrap;min-width:100%;font-size:14px}caption{text-align:left;color:#536575;margin-bottom:8px;font-size:12px}th,td{text-align:left;border:1px solid #d5dee5;padding:9px 12px}th{background:#f3f5f7;font-weight:600}#variables{white-space:pre;max-height:380px;font-size:14px;overflow:auto}.focus-mode .page-heading,.focus-mode .learning-brief,.focus-mode .notes-grid,.focus-mode .lesson-help,.focus-mode>.button-row{display:none}.focus-mode .workspace-grid{grid-template-columns:1.15fr 1fr}.focus-mode .cm-editor{min-height:60vh}.focus-mode .console{min-height:55vh}.notice{color:#805300;background:#fff5dc;border:1px solid #e2cca0;border-radius:9px;margin:20px 0;padding:15px 18px;font-size:14px;line-height:1.75}.notice.error{color:#9b261f;background:#fff0ef;border-color:#e8b9b5}.notice.mint{border-color:#bddbc9}.resource-list>div{border-bottom:1px solid var(--line);align-items:center;gap:20px;padding:22px 0;display:flex}.resource-list>div:first-child{padding-top:0}.resource-list>div:last-child{border:0;padding-bottom:0}.resource-list>div>div{flex:1}.resource-list h2{margin:9px 0;font-size:20px}.resource-list p{color:var(--muted);font-size:14px}.prose{max-width:880px}.prose h2{margin:30px 0 12px}.prose h2:first-child{margin-top:0}.prose h3{margin:25px 0 12px}.prose p,.prose li{font-size:16px;line-height:1.9}.prose hr{border:0;border-top:1px solid var(--line);margin:28px 0}.prose .button-row{margin:15px 0}.review-paper{border:1px solid var(--line);background:#fff;border-radius:12px;padding:8px 28px}.question{border:0;border-bottom:1px solid #e3e5e8;min-width:0;margin:0;padding:28px 0}.question:last-child{border:0}.question legend{float:left;width:100%;color:var(--navy);margin-bottom:17px;font-size:19px;font-weight:650;line-height:1.6;display:block}.question legend+*{clear:both}.question legend>span{color:#806020;margin-right:10px;font-size:13px;font-weight:700}.answer-option{cursor:pointer;border:1px solid #e2e6e9;border-radius:7px;align-items:flex-start;gap:12px;min-height:46px;margin-bottom:8px;padding:10px 15px;font-size:15px;display:flex}.answer-option:has(input:checked){background:#edf3f9;border-color:#4d7291}.answer-option input{accent-color:var(--navy);flex-shrink:0;width:17px;height:17px;margin-top:6px}.explanation{border-radius:8px;margin-top:14px;padding:16px 18px;font-size:14px}.explanation.wrong{color:#805300;background:#fff2df}.explanation.correct{color:#176347;background:#eaf5ef}.explanation p{margin-top:7px}.sticky-actions{border-top:1px solid var(--line);z-index:5;background:#fcfbf8ef;flex-wrap:wrap;gap:10px;margin-top:20px;padding:17px 0;display:flex;position:sticky;bottom:0}.report-document{max-width:920px;padding:35px 45px}.report-document-title{text-align:center;border-bottom:2px solid var(--navy);margin-bottom:15px;padding-bottom:30px}.report-document-title>span{letter-spacing:3px;color:#806020;font-size:11px}.report-document-title h2{margin:9px 0;font-size:30px}.report-document-title p{color:var(--muted);font-size:14px}.report-document section{border-bottom:1px solid var(--line);padding:22px 0}.report-document section:last-child{border:0}.report-document label{color:var(--navy);font-size:19px;font-weight:700;display:block}.report-document label>span{color:#947237;margin-right:14px;font-size:13px}.report-document section p{color:var(--muted);margin:8px 0 13px;font-size:13px}.record-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;padding:18px 0;display:flex}.record-row:first-child{padding-top:0}.record-row:last-child{border-bottom:0;padding-bottom:0}.record-row h2{font-size:19px}.record-row h2 a{text-decoration:none}.record-row p{margin-top:6px;font-size:13px}.empty-state{text-align:center;padding:40px 20px}.empty-state p{color:var(--muted);margin:15px 0 25px;font-size:15px}.history-code{white-space:pre-wrap;overflow-wrap:anywhere;background:#f4f7f9;max-height:300px;padding:12px;font-size:13px;overflow:auto}.avatar-layout{grid-template-columns:1fr 1fr;gap:20px;display:grid}.avatar-stage{background:radial-gradient(#f4effa,#fcfbff);border-radius:12px;justify-content:center;height:325px;margin-bottom:15px;display:flex}.avatar-stage>svg{width:100%;max-width:340px;height:100%}.animal-head{transform-origin:160px 230px}.eyes{transform-origin:160px 156px}.animal-options{grid-template-columns:repeat(4,1fr);gap:7px;margin-top:20px;display:grid}.animal-option{color:var(--navy);background:#fff;border:1px solid #d7d4dc;border-radius:9px;padding:5px}.animal-option>svg{width:100%;height:62px;display:block}.animal-option>span{font-size:12px}.animal-option[aria-pressed=true]{background:#f4eef9;border-color:#8c739f;box-shadow:inset 0 0 0 1px #8c739f}.slider-label{justify-content:space-between;margin-top:23px;display:flex}.avatar-layout input[type=range]{accent-color:#6b6594;width:100%;min-height:36px}.avatar-layout .button-row{margin-top:25px}.avatar-layout video{border-radius:9px;margin-top:15px;transform:scaleX(-1)}.code-text{background:#f8fafc;margin-top:12px}.toast{color:#fff;z-index:100;white-space:normal;background:#16334b;border-radius:10px;max-width:min(700px,100vw - 32px);padding:16px 22px;font-size:14px;position:fixed;bottom:24px;left:50%;transform:translate(-50%);box-shadow:0 8px 24px #0003}.dialog{max-width:min(650px,100vw - 32px);max-height:85dvh;color:var(--ink);border:1px solid #b5c0c9;border-radius:15px;padding:28px;box-shadow:0 20px 80px #0004}.dialog::backdrop{background:#0c233c77}.dialog h2{margin-bottom:16px}.dialog p{font-size:15px}.dialog-actions{flex-wrap:wrap;justify-content:flex-end;gap:10px;margin-top:24px;display:flex}.dialog select{width:100%;margin-top:12px}.dialog .button{font-size:13px}@media (min-width:1700px){.hero{min-height:430px}.hero h1{font-size:54px}.hero-copy{padding:45px 50px}.shortcut{min-height:200px}.shortcut h2{font-size:22px}.shortcut p{max-width:200px;font-size:15px}main{padding-left:40px;padding-right:40px}.hero{margin-left:-40px;margin-right:-40px}}@media (max-width:1350px){.header-course{display:none}.hero-copy{width:65%;min-width:440px;padding-left:30px}.hero h1{font-size:44px}.hero{background-position:50%,70%}.home-shortcuts{grid-template-columns:repeat(2,1fr)}.shortcut{min-height:155px}.shortcut p{max-width:85%}.home-bottom{grid-template-columns:1fr}.header-nav{margin-left:auto}.app-footer{display:block}.app-footer>img{margin-bottom:20px}.workspace-grid{grid-template-columns:1fr}.result-panel .console.empty{min-height:180px}.table-pair{grid-template-columns:1fr 1fr}}@media (max-width:1024px){:root{--header:82px}.app-header{gap:16px;padding:0 20px}.brand-full{width:210px;max-height:70px}.header-nav{display:none}.menu-toggle,.app-layout{display:block}.sidebar{left:0;top:var(--header);width:280px;height:calc(100dvh - var(--header));z-index:30;transition:transform .18s;position:fixed;bottom:0;transform:translate(-102%)}.drawer-open .sidebar{transform:translate(0)}#drawer-backdrop{inset:var(--header) 0 0;z-index:25;background:#0f2a4455;position:fixed}.drawer-open{overflow:hidden}main{padding:26px 26px 45px}.hero{min-height:350px;margin:-26px -26px 22px}.hero-copy{min-width:460px;padding:30px}.hero h1{font-size:46px}.home-bottom{grid-template-columns:1.3fr 1fr}.workspace-grid{grid-template-columns:1fr 1fr}.core-grid{gap:16px}.table-pair{grid-template-columns:1fr}.app-footer{display:flex}.avatar-layout{grid-template-columns:1fr 1fr}}@media (max-width:767px){:root{--header:74px;font-size:16px}.app-header{gap:8px;padding:0 12px}.brand-full{display:none}.brand-mobile{width:164px;display:block}.auth-control{gap:5px}.auth-control .button{min-height:40px;padding:7px 10px;font-size:12px}.account-chip .icon,.account-chip span,.end-button{display:none}.account-chip:after{content:"내 계정";white-space:nowrap;font-size:12px}.menu-toggle{width:38px;min-width:38px;font-size:21px}.sidebar{width:275px}main{padding:24px 17px 35px}.page-heading{margin-bottom:22px}.page-heading h1{font-size:28px}.page-heading>p:last-child{font-size:15px}.hero{background-image:linear-gradient(#fbf8f0 2%,#fbf8f0f5 30%,#fbf8f0b8 55%,#fbf8f011 78%),url(/hero/desk.webp);background-position:50%,100% 100%;background-repeat:no-repeat;background-size:cover,auto 67%;align-items:flex-start;min-height:470px;margin:-24px -17px 20px}.hero-copy{width:100%;min-width:0;padding:25px 24px}.hero .eyebrow{font-size:10px}.hero-course{font-size:13px;margin-top:8px!important}.hero h1{letter-spacing:-1.6px;margin:12px 0;font-size:39px}.hero-copy>p:last-of-type{font-size:14px}.hero .button-row{gap:14px;margin-top:17px}.hero .button{min-height:44px;padding:10px 17px;font-size:13px}.hero-link{font-size:12px}.home-shortcuts{grid-template-columns:1fr 1fr;gap:10px}.shortcut{min-height:180px;padding:17px 14px 24px}.shortcut>.icon{width:27px;height:27px;margin-bottom:9px}.shortcut h2{font-size:17px}.shortcut p{max-width:100%;padding-right:8px;font-size:12px}.circle-arrow{width:25px;height:25px;bottom:10px;right:10px}.home-bottom{grid-template-columns:1fr;gap:16px}.panel{border-radius:11px;margin-bottom:18px;padding:20px 18px}.section-title h2,.personal-callout h2{font-size:20px}.section-title .small{font-size:11px}.learning-flow{gap:4px}.learning-flow a{font-size:11px}.learning-flow a>span{width:45px;height:45px}.learning-flow:before{top:30px}.learning-flow b{font-size:14px}.app-footer{padding:27px 20px;display:block}.app-footer>img{width:240px}.app-footer p>span{margin:5px 0;display:block}.lesson-row{gap:15px;padding:17px 15px}.lesson-row h2{font-size:18px}.lesson-row p{font-size:13px}.lesson-number{border-radius:8px;min-width:43px;height:48px;font-size:20px}.lesson-row .eyebrow{letter-spacing:.6px;font-size:10px}.core-grid,.workspace-grid,.notes-grid,.avatar-layout,.focus-mode .workspace-grid{grid-template-columns:1fr}.core-grid .panel{margin-bottom:0}.workspace-toolbar{gap:10px}.workspace-toolbar>.button-row{gap:7px}.workspace-toolbar .button{padding:8px 11px;font-size:12px}.save-state{font-size:12px}.steps{gap:5px}.steps button{text-align:center;padding:7px 3px;font-size:11px;display:block}.steps button>span{width:23px;height:23px;margin:0 auto 4px}.panel-title{padding:15px}.panel-title .tag{font-size:10px}.code-panel .cm-editor{min-height:300px;font-size:16px}.code-actions{gap:9px;padding:14px}.console{padding:17px;font-size:16px}.notes-grid{gap:0}.trace-panel .trace-controls,.trace-panel>.legend,.trace-panel>#tables,.trace-panel>details{margin:14px}.resource-list>div{display:block}.resource-list .button,.resource-list select{margin-top:14px}.resource-list select{width:100%}.review-paper{padding:0 17px}.question{padding:24px 0}.question legend{font-size:17px}.answer-option{padding:10px;font-size:14px}.sticky-actions .button{padding:10px;font-size:12px}.report-document{padding:24px 18px}.report-document-title h2{font-size:27px}.record-row{align-items:flex-start;gap:12px}.record-row h2{font-size:17px}.record-row .button{white-space:nowrap;font-size:12px}.record-row .eyebrow{letter-spacing:.5px;font-size:10px}.avatar-stage{height:290px}.prose p,.prose li{font-size:15px}.setup-notice{padding:8px 17px;font-size:11px}.dialog{padding:22px}.dialog-actions{justify-content:stretch}.dialog-actions .button{flex:1;min-width:120px}.focus-mode .cm-editor{min-height:50vh}.focus-mode .console{min-height:200px}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}