@charset "UTF-8";
:root{--bg:#f7f8fb;--surface:#fff;--surface-2:#f8f9fc;--text:#242638;--muted:#777b8d;--line:#ececf2;--purple:#6657df;--purple-soft:#eeebff;--green:#24866a;--shadow:0 4px 22px #26274403;color-scheme:light;font-family:Inter,"Segoe UI",Arial,sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:14px;line-height:1.6}button,input,textarea,select{font:inherit}button,a,input,select,summary,textarea{-webkit-tap-highlight-color:transparent}button,a,summary{touch-action:manipulation}button{cursor:pointer;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--text);padding:10px 16px;transition:background .15s,transform .15s}button:hover{background:var(--surface-2)}button:disabled{opacity:.5;cursor:wait}a{color:var(--purple);text-decoration:none}a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #9a8ef1;outline-offset:3px}h1,h2,h3,p{margin-top:0}h1{font-size:29px;line-height:1.25;font-weight:650;letter-spacing:-1px;margin-bottom:0}h2{font-size:22px;line-height:1.4;letter-spacing:-.5px;font-weight:650;margin-bottom:12px}h3{font-size:16px;line-height:1.45;font-weight:650;margin-bottom:10px}p{margin-bottom:16px}small{font-size:11px}strong{font-weight:600}[hidden]{display:none!important}.skip{position:fixed;top:-80px;left:20px;padding:12px;z-index:100;background:var(--surface)}.skip:focus{top:12px}.sidebar{position:fixed;inset:0 auto 0 0;width:222px;background:var(--surface);border-right:1px solid var(--line);padding:29px 20px 20px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:10px;color:var(--text);padding:0 7px;margin-bottom:47px}.brand:hover{text-decoration:none}.brand img{width:36px;height:36px}.brand>span{font-size:18px;font-weight:700;line-height:1.2;letter-spacing:-.6px}.brand small{display:block;letter-spacing:3.5px;color:var(--muted);font-weight:500;font-size:8px;margin-top:6px}.workspace{font-size:9px;letter-spacing:1.4px;color:#9698a7;padding:0 12px;margin-bottom:13px}.nav-link{display:flex;align-items:center;gap:12px;padding:11px 13px;margin-bottom:5px;color:var(--muted);font-size:12px;border-radius:8px;font-weight:500}.nav-link>span{width:20px;font-size:20px;line-height:1}.nav-link:hover{background:var(--surface-2);text-decoration:none}.nav-link.active{color:var(--purple);background:var(--purple-soft);font-weight:650}.nav-link small{margin-left:auto;display:grid;place-items:center;background:var(--surface);border-radius:5px;width:21px;height:20px;font-size:10px}.sidebar-course{margin:40px 4px 25px;border:1px solid var(--line);border-radius:12px;padding:17px 15px;background:linear-gradient(140deg,var(--surface),var(--surface-2))}.tiny-label{font-size:7px;letter-spacing:1px;line-height:1.8;color:var(--muted);display:block}.sprout{font-size:50px;color:#9e93ed;line-height:1.5}.sidebar-course p{font-size:12px;line-height:1.8;margin-bottom:14px}.sidebar-course a{font-size:10px;display:flex;justify-content:space-between;font-weight:600}.sidebar-bottom{margin-top:auto}.local-label{color:var(--muted);font-size:9px;text-align:center;margin-top:18px;white-space:nowrap}.local-label i,.pill i,.practice-heading i{display:inline-block;width:5px;height:5px;border-radius:50%;background:#5cae8f;margin-right:6px;vertical-align:middle}.workspace-main{margin-left:222px}.topbar{height:75px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 38px;background:var(--surface)}.breadcrumb{font-size:11px;color:var(--muted)}.breadcrumb>span{padding:0 12px;color:#c5c7d1}.top-actions{display:flex;align-items:center;gap:18px}.guest-tag{font-size:10px;color:var(--muted)}.icon-button{padding:0;border:0;width:30px;height:30px;font-size:20px;background:transparent}.avatar{height:31px;width:31px;display:grid;place-items:center;border-radius:50%;color:var(--purple);background:var(--purple-soft);font-size:11px;font-weight:650}main{max-width:1480px;padding:33px 38px 45px;margin:0 auto;min-height:calc(100vh - 138px)}.page-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:27px}.eyebrow{font-size:9px;font-weight:600;letter-spacing:1.2px;color:var(--muted);margin-bottom:7px}.date-label{font-size:8px;letter-spacing:1.5px;color:#989baa}.date-label span{font-size:17px;color:var(--purple);padding-left:9px}.hero{background:#eeecfd;border:1px solid #e9e5fc;border-radius:17px;padding:34px 35px;display:flex;position:relative;overflow:hidden;min-height:320px;margin-bottom:24px;color:#292344}.hero-copy{position:relative;z-index:2;flex:1}.pill{border:1px solid #dcd5f6;border-radius:20px;padding:6px 10px;font-size:8px;letter-spacing:1px;color:#746797;background:#ffffff63;display:inline-block;margin-bottom:17px}.pill i{background:#8271d8;width:4px;height:4px}.hero h2{font-size:35px;letter-spacing:-1px;line-height:1.22;font-weight:650;margin:0 0 14px}.hero h2 em{font-style:normal;color:#7460d2}.hero p{font-size:11px;line-height:1.85;color:#827997;margin-bottom:20px}.primary{display:inline-flex;align-items:center;justify-content:center;gap:22px;background:var(--purple);color:#fff;border:1px solid var(--purple);border-radius:8px;padding:11px 17px;font-size:11px;font-weight:600;white-space:nowrap}.primary:hover{background:#5546ca;text-decoration:none;color:#fff}.primary>span{font-size:16px;line-height:1}.hero-footnote{display:block;color:#9a90b0;font-size:9px;margin-top:12px}.hero-art{flex:0 0 43%;position:relative;min-width:280px}.art-code{position:absolute;top:46px;left:10px;right:0;background:#fcfbff;border:1px solid #e1dcf3;box-shadow:0 13px 40px #8275b61a;border-radius:12px;transform:rotate(-3deg);overflow:hidden;z-index:2}.art-title{display:flex;align-items:center;justify-content:space-between;padding:11px 15px;border-bottom:1px solid #eeeaf7;color:#aaa4b8;font-size:9px}.art-title>span{color:#d5cce8;letter-spacing:3px;font-size:8px}.art-title>b{background:#f7df76;color:#9c8437;font-size:8px;padding:2px 4px;border-radius:3px}.art-lines{display:grid;grid-template-columns:20px 1fr;row-gap:10px;padding:22px 15px 20px;font-size:10px;font-family:Consolas,monospace}.art-lines>span{color:#ccc4dd;font-size:9px}.art-lines code{color:#726689;white-space:nowrap}.art-lines i{font-style:normal;color:#9c6fbd}.art-lines em{font-style:normal;color:#56a68b}.art-lines b{color:#d49b60}.art-lines strong{color:#7b87bf}.art-output{margin:0 15px 14px;border-radius:6px;padding:9px;background:#f1f8f5;font:10px Consolas,monospace;color:#4d9e82}.art-output>span{margin-right:12px;color:#a1c9b9}.art-output i{float:right;font-style:normal}.floating-tag{position:absolute;border-radius:8px;z-index:4;white-space:nowrap;background:#fff;box-shadow:0 6px 22px #8476b712;color:#9186aa;font-size:9px;padding:10px 14px;transform:rotate(3deg)}.tag-top{top:4px;right:10px}.tag-bottom{bottom:0;left:30px;transform:rotate(-3deg)}.tag-bottom span{display:inline-grid;place-items:center;background:#e9f8f0;color:#71a488;width:20px;height:20px;border-radius:50%;margin-right:8px}.orbit{position:absolute;border:1px solid #ded7f6;border-radius:50%;height:290px;width:290px;top:-3px;left:30px;transform:rotate(-20deg)}.orbit-two{width:370px;height:190px;left:-5px;top:42px}.art-star{position:absolute;font-size:45px;bottom:10px;right:-17px;color:#b6a9e6}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:29px}.stat{display:flex;align-items:center;gap:14px;padding:19px 20px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.stat-icon{display:grid;place-items:center;width:41px;height:41px;border-radius:11px;font-size:22px}.purple-bg{color:#8a77d7;background:#f0ecfc}.orange-bg{color:#ca9b58;background:#fcf4e8}.green-bg{color:#6ba98b;background:#eaf7ef}.stat strong{font-size:24px;letter-spacing:-.7px;font-weight:650;line-height:1.1}.stat strong small{font-size:12px;color:var(--muted);font-weight:400;letter-spacing:0}.stat p{margin:6px 0 0;font-size:10px;color:var(--muted)}.mini-bars{color:#c8bff0;font-size:23px;margin-left:auto;letter-spacing:1px}.dashboard-columns{display:grid;grid-template-columns:minmax(0,1.85fr) minmax(230px,1fr);gap:24px;align-items:start}.card{background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:24px;box-shadow:var(--shadow)}.section-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:20px}.section-head h2,.section-head h3{margin-bottom:0}.section-head p{color:var(--muted);font-size:12px;margin:8px 0 0}.badge{background:var(--surface-2);border:1px solid var(--line);border-radius:6px;color:var(--muted);font-size:9px;padding:5px 8px;white-space:nowrap}.course-intro{display:flex;gap:13px;align-items:center;margin:24px 0}.js-logo{height:46px;width:46px;flex:none;border-radius:11px;background:#fcf3cd;color:#a08730;display:flex;align-items:flex-end;justify-content:flex-end;padding:5px 8px;font-size:22px;font-weight:650;letter-spacing:-1px}.course-intro h3{font-size:15px;margin:0 0 5px}.course-intro p{font-size:10px;color:var(--muted);margin:0}.progress-label{display:flex;justify-content:space-between;font-size:9px;color:var(--muted);margin-bottom:9px}.progress-label b{color:var(--purple);font-weight:600}.progress-track{display:block;height:5px;border:0;border-radius:10px;background:var(--surface-2);overflow:hidden;margin-bottom:18px;width:100%;appearance:none}.progress-track::-webkit-progress-bar{background:var(--surface-2);border-radius:8px}.progress-track::-webkit-progress-value{background:#8a7bdf;border-radius:8px}.progress-track::-moz-progress-bar{background:#8a7bdf;border-radius:8px}.progress-track i{display:block;height:5px;background:#8a7bdf;border-radius:8px}.lesson-row{border-top:1px solid var(--line);padding:15px 0;display:flex;align-items:center;gap:13px;color:var(--text)}a.lesson-row:hover{text-decoration:none;color:var(--purple)}.lesson-number{font-size:10px;color:#9b9eae;border:1px solid var(--line);border-radius:8px;width:31px;height:31px;display:grid;place-items:center;flex:none}.lesson-row strong{font-size:11px;font-weight:550}.lesson-row p{font-size:11px;color:var(--muted);margin:4px 0 0}.row-meta{margin-left:auto;white-space:nowrap;font-size:9px;color:var(--muted)}.row-meta b{font-size:14px;font-weight:400;padding-left:13px}.lesson-row.done .lesson-number{background:#eaf7f0;border-color:#eaf7f0;color:var(--green)}.locked{opacity:.56}.right-column{display:grid;gap:18px}.daily-card .section-head{margin-bottom:16px}.daily-card h3{font-size:13px}.daily-card .section-head>span{color:#aaa5bd}.daily-number{display:block;font-size:28px;font-weight:650;letter-spacing:-1px;margin-bottom:10px}.daily-number>span{font-size:12px;letter-spacing:0;color:var(--muted);font-weight:400}.daily-card>p{font-size:10px;color:var(--muted);line-height:1.8}.week-days{display:flex;justify-content:space-between;margin:19px 0 13px}.week-days>span{display:flex;align-items:center;flex-direction:column;gap:8px;font-size:9px}.week-days i{font-style:normal;color:var(--muted)}.week-days b{height:26px;width:26px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;font-weight:400;color:#bcbecb}.week-days .studied b{background:var(--purple);color:#fff;border-color:var(--purple)}.daily-card>small{color:#a0a3b2;font-size:9px}.tip-card{padding:24px;background:#f0f3f0;border:1px solid #e6ebe6;border-radius:12px}.tip-icon{float:right;font-size:27px;color:#9bb3a0;line-height:1}.tip-card .eyebrow{font-size:8px;color:#8b9b8e;display:block;margin:0 0 13px}.tip-card h3{font-size:20px;line-height:1.4;color:#536b59;margin-bottom:13px}.tip-card p{font-size:11px;color:#8b988c;line-height:1.9}.tip-card a{display:flex;justify-content:space-between;font-size:10px;color:#5d7b65}.quiet-note{display:flex;gap:10px;padding:0 6px;color:var(--muted)}.quiet-note>span{font-size:26px;color:#ada5c6}.quiet-note>p{font-size:10px;line-height:1.9;margin:0}.below{margin-top:22px}.muted{color:var(--muted);font-size:12px}footer{padding:21px 38px;border-top:1px solid var(--line);font-size:9px;color:var(--muted);display:flex;justify-content:space-between;gap:10px}footer>span{color:#aaacb8}footer>a{color:var(--muted)}
/* Lessons */
.lesson-topline{display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--muted);margin-bottom:15px}.lesson-topline b{padding:0 8px;font-weight:400}.lesson-progress{display:flex;gap:6px;margin-bottom:23px}.lesson-progress>span{height:4px;background:var(--line);flex:1;border-radius:5px}.lesson-progress .filled{background:#8c7de1}.lesson-progress .current{background:#c8bff5}.lesson-layout{display:grid;grid-template-columns:minmax(280px,1fr) minmax(340px,1.04fr);gap:24px;align-items:start}.theory-panel{background:var(--surface);padding:26px;border:1px solid var(--line);border-radius:13px}.theory-panel h2{font-size:25px;margin:12px 0}.lesson-label{font-size:9px;font-weight:600;color:var(--purple);letter-spacing:1px}.lesson-label>span{color:var(--muted)}.lesson-subtitle{font-size:12px;color:var(--muted);line-height:1.8}.lesson-goal{display:flex;gap:12px;border:1px solid var(--line);border-radius:9px;padding:14px;margin:20px 0;background:var(--surface-2)}.lesson-goal>span{font-size:24px;color:var(--purple)}.lesson-goal strong{font-size:11px}.lesson-goal p{font-size:11px;color:var(--muted);margin:4px 0 0}.theory-section{margin-top:25px}.theory-section h3{font-size:15px}.theory-section p,.walkthrough,.task-section p,.recap p,.theory-panel details p{font-size:12px;color:var(--muted);line-height:1.95}.prerequisites{font-size:11px;padding:12px 0;border-bottom:1px solid var(--line)}summary{cursor:pointer;font-size:12px;font-weight:550}.example-section{margin:25px 0}.example-section .section-head{margin-bottom:10px}.example-section h3{font-size:13px}.text-button{border:0;background:transparent;color:var(--purple);padding:5px 0;font-size:10px}.text-button:hover{background:transparent;color:#9481ed}.example-code{white-space:pre-wrap;overflow-wrap:anywhere;font:11px/1.9 Consolas,"Cascadia Code",monospace;padding:16px;border-radius:9px;background:#f5f4fb;color:#4e506a;border:1px solid #eeebf6;margin:12px 0;tab-size:2}.walkthrough{padding-left:22px}.walkthrough li{padding-left:4px;margin-bottom:6px}.walkthrough li::marker{color:var(--purple);font-size:10px}.task-section{background:var(--purple-soft);padding:20px;border-radius:10px;margin:24px 0}.task-section .eyebrow{color:var(--purple);font-size:8px}.task-section h3{margin:8px 0}.task-section p{color:#746e91}.task-checklist{display:flex;gap:12px;font-size:9px;color:var(--purple);flex-wrap:wrap}.hint-box{border:1px solid var(--line);padding:16px;border-radius:9px;margin-bottom:20px}.hint-box strong{font-size:11px}.hint-box .section-head{margin-bottom:9px}.hint-box small{font-size:9px;color:var(--muted);display:block}.hint-box p{font-size:12px;color:var(--muted)}.quiz{margin:28px 0}.quiz h3{font-size:14px;margin-top:8px}.quiz-options{display:grid;gap:8px}.quiz-options button{text-align:left;display:flex;align-items:center;gap:10px;font-size:12px;padding:10px 12px}.quiz-options button>span{border:1px solid var(--line);border-radius:5px;color:var(--muted);font-size:10px;padding:1px 6px}.quiz-options .correct{border-color:#9bcdb8;background:#eff9f4;color:#28866a}.quiz-options .incorrect{border-color:#dcb2b2;background:#fcf2f2}.quiz>p{font-size:11px;color:var(--muted);margin-top:12px}.recap{padding:18px;border-left:3px solid #b4a7ec;background:var(--surface-2);margin-bottom:22px}.recap h3{font-size:13px}.recap p{margin-bottom:0}.notes-label{margin-top:20px}.notes-label textarea{min-height:100px;font-size:12px}.completion{margin-top:24px;padding:20px;background:#edf8f1;border:1px solid #dcefe3;border-radius:9px}.completion strong{font-size:12px;color:#438567}.completion p{font-size:11px;color:#7b9987;margin:8px 0 14px}.practice-panel{position:sticky;top:20px;min-width:0}.practice-heading{display:flex;align-items:center;justify-content:space-between;font-size:8px;letter-spacing:1px;color:var(--muted);margin:0 2px 12px}.practice-heading>span+span{letter-spacing:0}.editor-panel{background:#202331;border:1px solid #343646;border-radius:12px;overflow:hidden;box-shadow:0 10px 30px #21213308}.editor-top{display:flex;justify-content:space-between;align-items:center;background:#272a3a;color:#b8bacb;padding:12px 16px;font-size:10px}.editor-top>span+span{color:#7e839a;font-size:9px}.editor-top b{background:#514b34;color:#d7c476;padding:3px 4px;border-radius:3px;font-size:8px;margin-left:7px}.file-dot{display:inline-block;height:5px;width:5px;border-radius:50%;background:#9c8ef1;margin-right:9px}.editor-wrap{height:300px;display:flex;padding:20px 0 12px;overflow:hidden}#line-numbers{color:#5f647d;font:12px/23px Consolas,"Cascadia Code",monospace;white-space:pre;text-align:right;min-width:43px;padding:0 13px 0 5px;overflow:hidden;user-select:none}.code-layer{position:relative;flex:1;min-width:0;height:100%;overflow:hidden}#highlight,#code{font:12px/23px Consolas,"Cascadia Code",monospace;letter-spacing:0;tab-size:2;margin:0;padding:0 18px 25px 0;border:0;border-radius:0;white-space:pre;overflow:auto;overflow-wrap:normal;position:absolute;inset:0;width:100%;height:100%;background:transparent}#highlight{pointer-events:none;color:#d5d8eb;scrollbar-width:none}#highlight::-webkit-scrollbar{display:none}#code{color:transparent;caret-color:#e6e3fc;resize:none;outline:none!important;-webkit-text-fill-color:transparent}#code::selection{background:#7763b94d}#code:focus-visible{box-shadow:inset 0 0 0 1px #7763b9}.syntax-keyword{color:#be9be1}.syntax-string{color:#a6caa8}.syntax-number{color:#d4ac78}.syntax-comment{color:#727c95}.example-code .syntax-keyword{color:#9b64b8}.example-code .syntax-string{color:#568872}.example-code .syntax-number{color:#b28a4f}.example-code .syntax-comment{color:#9b9bb1}.editor-status{display:flex;justify-content:space-between;gap:8px;padding:8px 14px;color:#747c97;border-bottom:1px solid #323647;font-size:8px;background:#242735}.editor-actions{display:flex;align-items:center;gap:10px;padding:14px;background:#252837}.editor-actions .primary{padding:9px 13px;font-size:10px}.run-button{border-color:#464b60;background:#32374b;color:#d9ddec;padding:9px 13px;font-size:10px}.run-button:hover{background:#3c4259}.editor-actions .text-button{margin-left:auto;color:#9d9db2;font-size:9px}.output-tabs{display:flex;align-items:center;gap:18px;padding:0 16px;border-top:1px solid #353949;border-bottom:1px solid #353949;background:#232635}.output-tab{background:none;border:0;border-radius:0;color:#858da9;padding:12px 0;font-size:9px;border-bottom:2px solid transparent;margin-bottom:-1px}.output-tab:hover{background:none;color:#b9b0e9}.output-tab.active{color:#bbb1ed;border-bottom-color:#a090df}#run-status{margin-left:auto;font-size:8px;color:#9b93b8}.console-output{padding:17px;min-height:155px;max-height:370px;overflow:auto;color:#d0d5e9;font-size:11px}.console-placeholder{color:#727c97;font:11px/1.9 Consolas,monospace}.console-placeholder small{font-size:10px;color:#59627c}.console-output pre{font:12px/1.9 Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;margin:10px 0}.console-label{font-size:8px;color:#777f9d;letter-spacing:1px}.console-success{font-size:9px;color:#8aa892;border-top:1px solid #303549;padding-top:10px;margin-top:15px}.console-output .error-text{color:#e6a8a8;font-size:11px}.editor-tip{padding:16px 4px;display:flex;gap:12px;color:var(--muted)}.editor-tip>span{font-size:25px;color:#ada5c6}.editor-tip p{font-size:10px;line-height:1.9;margin:0}.test-summary{padding:0 0 12px;color:#d9bb88;font-size:12px}.test-summary.passed{color:#9ccbb5}.test-case{border-top:1px solid #363b4e;padding:10px 0}.test-case summary{font-size:10px;color:#d0aa8d}.test-case.passed summary{color:#9bc4ad}.test-case>div{padding:9px 0 0 15px;color:#8993af;font-size:10px}.test-case p{margin:3px 0;overflow-wrap:anywhere}.test-case pre{color:#dda8a8;font-size:10px}.test-advice{color:#a2aac2;font-size:10px;margin:13px 0 0;line-height:1.9}.demo-output{background:#edf7f1;color:#588770;border:1px solid #d7e9df;font:12px/1.8 Consolas,monospace;padding:14px;border-radius:8px;white-space:pre-wrap}.solution-card{background:var(--surface);border:1px solid var(--line);padding:20px;border-radius:12px;margin-top:12px}.solution-card p,.solution-card small{font-size:11px;color:var(--muted)}.mobile-tabs{display:none}
/* Supporting pages */
.practice-intro{padding:15px 0 25px}.practice-intro h2{font-size:28px;margin-bottom:10px}.practice-intro p{color:var(--muted);font-size:13px}.review-link{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding:13px 0;font-size:12px}.attempt{display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--line);font-size:12px}.attempt b{color:#bc9b67}.attempt .success-text{color:var(--green)}.attempt small{display:block;font-size:10px;color:var(--muted);margin-top:4px}.search-label{max-width:600px}.search-label input{font-size:13px}.term{padding:18px 0;border-bottom:1px solid var(--line)}.term summary{font-size:15px}.term summary>span{float:right;color:var(--muted)}.term p{max-width:850px;color:var(--muted);font-size:13px;line-height:1.9;padding-top:14px}.term .example-code{max-width:850px}.skill-map{max-width:740px;margin:30px auto}.skill-step{position:relative;display:flex;gap:23px;padding-bottom:32px}.skill-step:not(:last-child):before{content:"";position:absolute;left:21px;top:45px;bottom:0;width:2px;background:var(--line)}.skill-node{display:grid;place-items:center;width:44px;height:44px;flex:none;border:1px solid var(--line);border-radius:50%;background:var(--surface-2);color:var(--muted);font-size:13px}.skill-step.available .skill-node{background:var(--purple-soft);border-color:#c7bdee;color:var(--purple)}.skill-step.completed .skill-node{background:#edf8f1;border-color:#d7ecdf;color:var(--green)}.skill-step h3{margin:5px 0 8px}.skill-step p{color:var(--muted);font-size:12px;margin-bottom:8px}.skill-step a,.skill-step small{font-size:11px}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.settings-grid h2{font-size:20px}.settings-grid p{color:var(--muted);font-size:12px;line-height:1.9}label{display:block;font-size:11px;font-weight:500;margin:16px 0}input,select,textarea{display:block;background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:7px;width:100%;padding:11px 12px;margin-top:7px;max-width:100%}textarea{resize:vertical}.import-label{margin-top:24px}.import-label input{font-size:11px}.about-card{grid-column:1/-1}.storage-alert{padding:20px;border:1px solid #e6cba3;background:#fff7e5;color:#907341;margin-bottom:20px;border-radius:10px}.button-row{display:flex;justify-content:flex-end;gap:12px;margin-top:25px}.purple{color:var(--purple)}dialog{background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:17px;width:min(460px,calc(100% - 36px));padding:32px;max-height:90dvh;overflow:auto;box-shadow:0 20px 80px #221b4430}dialog::backdrop{background:#26233e55;backdrop-filter:blur(4px)}dialog h2{font-size:28px;line-height:1.3;margin:13px 0}dialog p{color:var(--muted);font-size:12px;line-height:1.85}dialog .primary{width:100%;margin-top:8px}dialog .button-row .primary{margin-top:0;width:auto}dialog small{display:block;text-align:center;font-size:9px;color:var(--muted);margin-top:17px;line-height:1.8}#toast{position:fixed;bottom:25px;left:50%;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:#28263d;color:#fff;border:1px solid #514b68;border-radius:10px;padding:12px 20px;font-size:12px;z-index:200;box-shadow:0 8px 30px #17112c26;transition:opacity .2s,transform .2s;max-width:calc(100vw - 30px);width:max-content}#toast.visible{opacity:1;transform:translate(-50%,0)}#toast.error{background:#6c3f47}
[data-theme=dark]{--bg:#171a23;--surface:#20242f;--surface-2:#262a38;--text:#e3e5ef;--muted:#9a9fb4;--line:#333746;--purple:#a697ff;--purple-soft:#332d4e;color-scheme:dark}.primary,[data-theme=dark] .primary{background:#6657df;color:#fff;border-color:#6657df}[data-theme=dark] .hero{background:#302a46;border-color:#41365d;color:#e5dff4}[data-theme=dark] .hero p{color:#aaa0c3}[data-theme=dark] .hero h2 em{color:#b5a3ef}[data-theme=dark] .pill{background:#ffffff06;border-color:#5a4b7a;color:#c1afd7}[data-theme=dark] .art-code{background:#343244;border-color:#554a65}[data-theme=dark] .art-title{border-color:#4d425f}[data-theme=dark] .art-lines code{color:#c4b8d5}[data-theme=dark] .art-output{background:#2e433d}[data-theme=dark] .floating-tag{background:#403a52;color:#cbbede}[data-theme=dark] .orbit{border-color:#524567}[data-theme=dark] .tip-card{background:#25372e;border-color:#344b3b}[data-theme=dark] .tip-card h3{color:#a0bda7}[data-theme=dark] .tip-card p{color:#90aa97}[data-theme=dark] .tip-card a{color:#a0bda7}[data-theme=dark] .example-code{background:#292738;border-color:#3d374f;color:#c6c3da}[data-theme=dark] .example-code .syntax-string{color:#a1c5b1}[data-theme=dark] .example-code .syntax-keyword{color:#c7a1e6}[data-theme=dark] .task-section p{color:#b4a9ce}[data-theme=dark] .completion{background:#253b2f;border-color:#34513f}[data-theme=dark] .completion strong{color:#aad2b9}[data-theme=dark] .quiz-options .correct{background:#253b2f;color:#a4cdb4;border-color:#4b7c60}[data-theme=dark] .quiz-options .incorrect{background:#462f38;border-color:#795562}[data-theme=dark] .demo-output{background:#253b2f;border-color:#34513f;color:#aad2b9}
@media(min-width:1500px){.hero{min-height:350px;padding:40px 45px}.hero h2{font-size:42px}.hero p{font-size:13px}.hero-art{flex-basis:40%}.art-lines{font-size:13px;row-gap:13px;padding:24px}.tag-bottom{bottom:10px}.stat{padding:23px}.course-card{padding:28px}.lesson-row strong{font-size:13px}}
@media(max-width:1180px){.sidebar{width:190px;padding-left:13px;padding-right:13px}.workspace-main{margin-left:190px}main{padding:28px 25px 40px}.topbar{padding:0 25px}.hero{padding:28px;min-height:310px}.hero h2{font-size:31px}.hero-art{min-width:230px}.art-lines{font-size:9px;row-gap:12px;padding-left:12px}.tag-top{right:0;font-size:8px}.tag-bottom{left:0;font-size:8px}.stats-grid{gap:12px}.stat{padding:16px 13px;gap:10px}.mini-bars{display:none}.dashboard-columns{gap:18px;grid-template-columns:minmax(0,1.7fr) minmax(220px,1fr)}.card{padding:20px}.lesson-layout{grid-template-columns:minmax(260px,1fr) minmax(290px,1fr);gap:18px}.theory-panel{padding:20px}.editor-actions{gap:7px;padding:12px}.editor-actions .primary,.run-button{padding:9px 10px;font-size:9px}.editor-status{font-size:7px}.practice-heading{font-size:7px}.course-intro p{font-size:9px}.course-intro h3{font-size:13px}.lesson-row strong{font-size:10px}.date-label{display:none}}
@media(max-width:960px){.sidebar{width:175px;padding-left:10px;padding-right:10px}.workspace-main{margin-left:175px}.brand{gap:7px;padding-left:4px}.brand>span{font-size:16px}.brand img{width:31px}.nav-link{font-size:11px;padding:11px 10px}.workspace{font-size:8px}.sidebar-course{margin:35px 0 20px;padding:15px 12px}.tiny-label{font-size:6px}.local-label{font-size:8px}main{padding:25px 20px}.hero{padding:25px}.hero h2{font-size:29px}.hero-art{min-width:190px;flex-basis:40%;opacity:.9}.art-code{top:75px;left:0}.art-lines{font-size:8px;padding:16px 8px;grid-template-columns:15px 1fr}.tag-top{top:35px;font-size:7px}.tag-bottom{bottom:10px;font-size:7px;padding:8px}.tag-bottom>span{display:none}.hero-footnote{font-size:8px}.hero p{font-size:10px}.dashboard-columns{grid-template-columns:1fr}.right-column{grid-template-columns:1fr 1fr}.quiet-note{grid-column:1/-1}.stats-grid{gap:10px}.stat-icon{width:31px;height:31px;font-size:19px}.stat strong{font-size:22px}.stat p{font-size:9px}.lesson-layout{grid-template-columns:1fr}.practice-panel{position:relative;top:0}.lesson-layout{display:block}.theory-panel,.practice-panel{display:block}.practice-panel{margin-top:25px}.mobile-tabs{display:flex;gap:8px;margin-bottom:18px}.mobile-tabs button{flex:1;font-size:12px}.mobile-tabs .active{color:var(--purple);border-color:var(--purple);background:var(--purple-soft)}.lesson-layout:not(.show-editor) .practice-panel{display:none}.lesson-layout.show-editor .theory-panel{display:none}.settings-grid{grid-template-columns:1fr}.about-card{grid-column:auto}footer>span{display:none}.editor-wrap{height:340px}.course-intro p{font-size:10px}}
@media(max-width:640px){.sidebar{position:fixed;inset:auto 0 0;width:auto;height:66px;display:block;padding:0 7px;border-right:0;border-top:1px solid var(--line);background:var(--surface)}.sidebar .brand,.workspace,.sidebar-course,.sidebar-bottom{display:none}.sidebar nav{height:100%;display:flex;justify-content:space-around}.nav-link{flex-direction:column;gap:5px;padding:10px 2px 5px;border-radius:0;flex:1;font-size:8px;margin:0;line-height:1.2;text-align:center}.nav-link>span{font-size:20px;width:auto}.nav-link small{display:none}.nav-link.active{background:var(--surface);color:var(--purple);border-top:2px solid var(--purple);padding-top:8px}.workspace-main{margin-left:0}.topbar{height:61px;padding:0 20px}.breadcrumb{font-size:10px}.breadcrumb>span{padding:0 8px}.top-actions{gap:10px}.guest-tag{font-size:8px}.avatar{width:28px;height:28px;font-size:10px}.icon-button{font-size:19px;width:25px}main{padding:24px 18px 35px}.page-heading{margin-bottom:22px}h1{font-size:25px}.eyebrow{font-size:8px}.hero{padding:24px 22px;min-height:auto;display:block;border-radius:13px}.hero h2{font-size:32px}.hero p{font-size:10px}.hero-art{height:210px;max-width:290px;margin:5px auto 0;opacity:1}.art-code{top:35px;left:8px;right:10px}.art-lines{font-size:10px;row-gap:8px;padding:17px 15px}.tag-top{top:3px;right:0;font-size:8px}.tag-bottom{bottom:0;left:10px;font-size:8px}.orbit{height:230px;width:230px;top:-5px}.orbit-two{height:140px;width:280px;top:40px;left:0}.art-star{bottom:15px;right:-5px;font-size:30px}.hero-footnote{font-size:9px}.stats-grid{gap:8px;margin-bottom:22px}.stat{display:block;padding:13px 11px}.stat-icon{width:27px;height:27px;font-size:17px;margin-bottom:10px;border-radius:7px}.stat strong{font-size:21px}.stat strong small{font-size:10px}.stat p{font-size:8px;margin-top:6px;white-space:nowrap}.right-column{grid-template-columns:1fr}.card{padding:20px 17px}.section-head h2{font-size:20px}.badge{font-size:8px;padding:4px 6px}.course-intro{gap:10px;margin:21px 0}.course-intro h3{font-size:13px}.course-intro p{font-size:9px}.js-logo{width:40px;height:40px;font-size:20px;border-radius:8px}.lesson-row{gap:11px;padding:14px 0}.lesson-row strong{font-size:11px}.lesson-row p{font-size:10px}.lesson-number{width:28px;height:28px;font-size:9px}.row-meta{font-size:8px}.row-meta b{padding-left:8px}.progress-label{font-size:8px}.daily-card .section-head h3{font-size:15px}.daily-card>p{font-size:12px}.week-days b{width:30px;height:30px}.week-days>span{font-size:10px}.tip-card p{font-size:12px}.tip-card a{font-size:11px}.quiet-note>p{font-size:11px}.quiet-note{padding:8px}.lesson-topline{font-size:10px;align-items:start;gap:10px}.lesson-topline>span{text-align:right;max-width:180px;font-size:9px}.lesson-topline b{padding:0 4px}.theory-panel{padding:21px 17px}.theory-panel h2{font-size:24px}.theory-section p{font-size:13px}.example-section .section-head{align-items:start;gap:8px}.example-section h3{font-size:12px}.text-button{font-size:10px}.task-section{padding:17px}.task-section p{font-size:12px}.editor-wrap{height:330px}#highlight,#code{font-size:12px}.editor-status{font-size:7px;padding:8px 10px}.editor-actions{padding:12px}.editor-actions .primary,.run-button{padding:10px 13px;font-size:10px}.editor-tip p{font-size:11px}.practice-heading{font-size:8px}.practice-intro h2{font-size:25px}.skill-step{gap:16px}.skill-step h3{font-size:15px}.skill-step p{font-size:12px}.skill-node{width:36px;height:36px}.skill-step:not(:last-child):before{left:17px;top:37px}.settings-grid{gap:18px}.settings-grid p{font-size:13px}dialog{padding:25px}dialog h2{font-size:27px}dialog label{margin:13px 0}footer{padding:20px 18px 84px;font-size:8px}#toast{bottom:80px;font-size:11px;padding:12px 15px}.button-row{flex-wrap:wrap}}
.auth-layout{display:grid;grid-template-columns:1.05fr 1fr;gap:26px;max-width:1000px;margin:20px auto}.auth-story{background:var(--purple-soft);border:1px solid var(--line);padding:40px 32px;border-radius:15px;position:relative;overflow:hidden}.auth-story h2{font-size:34px;margin:15px 0 20px;line-height:1.25}.auth-story>p,.auth-story li{font-size:14px;color:var(--muted);line-height:1.9}.auth-story ul{padding-left:20px;margin-top:30px}.auth-story li{margin-bottom:10px}.auth-symbol{font:100px/1.5 Consolas,monospace;color:#b2a5ea;letter-spacing:20px;text-align:center;margin-top:25px}.auth-form-card{padding:32px}.auth-form-card label,.password-change label{font-size:13px}.auth-form-card input,.password-change input{font-size:14px}.auth-form-card .primary{width:100%;font-size:13px;padding:13px}.password-help{font-size:11px;color:var(--muted);margin-top:-8px}.show-password{display:flex;align-items:center;gap:9px;font-size:12px!important;font-weight:400}.show-password input{display:inline;width:16px;height:16px;margin:0}.form-error{padding:12px 14px;background:#fbebeb;border:1px solid #eacaca;color:#a04c58;border-radius:8px;font-size:12px}.auth-switch{text-align:center;font-size:12px;color:var(--muted);margin-top:20px}.guest-continue{display:block;text-align:center;font-size:12px}.welcome-account{display:flex;gap:10px;margin-top:15px}.welcome-account button{font-size:11px;flex:1}.account-card{display:grid;grid-template-columns:1fr auto;gap:20px;margin-bottom:25px}.account-card p{color:var(--muted);font-size:12px;margin-bottom:10px}.account-card .button-row{align-items:center;flex-wrap:wrap;margin-top:0;font-size:12px}.account-controls{display:flex;flex-direction:column;align-items:flex-end;gap:10px}.account-controls button{font-size:12px}.password-change,.guest-import,#sync-conflict-actions{grid-column:1/-1;border-top:1px solid var(--line);padding-top:18px}.password-change summary{font-size:13px}.password-change form{max-width:420px}.password-change>p{margin:15px 0 0}.guest-import button,#take-remote{font-size:12px}#sync-status-detail{color:var(--purple)}#account-sync-status{white-space:normal;line-height:1.8;font-size:10px}[data-theme=dark] .form-error{background:#462f38;color:#e9b3b3;border-color:#795562}.guest-tag{font-size:11px!important}.account-card h2{margin-bottom:9px}
@media(max-width:960px){.auth-layout{grid-template-columns:1fr}.auth-story{display:none}.auth-form-card{max-width:480px;width:100%;margin:0 auto}.account-card{grid-template-columns:1fr}.account-controls{align-items:flex-start;flex-direction:row;flex-wrap:wrap}.account-card .button-row{justify-content:flex-start}.account-card .password-change,.guest-import,#sync-conflict-actions{grid-column:auto}}
@media(max-width:640px){.auth-form-card{padding:24px 20px}.welcome-account{flex-wrap:wrap}.guest-tag{max-width:85px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}}
.admin-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px}.admin-heading p{font-size:13px;color:var(--muted);margin:0}.admin-heading>a{font-size:12px}.admin-tabs{display:flex;border-bottom:1px solid var(--line);gap:27px;margin-bottom:25px;overflow:auto}.admin-tabs a{padding:13px 0;color:var(--muted);font-size:13px;white-space:nowrap;border-bottom:2px solid transparent}.admin-tabs a.active{color:var(--purple);border-color:var(--purple)}.admin-tabs a:hover{text-decoration:none;color:var(--purple)}.admin-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px;margin-bottom:24px}.admin-metrics.three{grid-template-columns:repeat(3,minmax(0,1fr))}.admin-metric{padding:22px}.admin-metric>span{display:block;font-size:12px;color:var(--muted)}.admin-metric>strong{display:block;font-size:30px;font-weight:600;line-height:1.4;margin:10px 0;letter-spacing:-1px}.admin-metric>small{font-size:10px;color:var(--muted);display:block}.admin-metrics.three .admin-metric:last-child>strong{font-size:19px;letter-spacing:-.2px;margin-top:17px}.admin-columns{display:grid;grid-template-columns:1.45fr 1fr;gap:24px;align-items:start}.admin-facts{margin:18px 0 20px;font-size:13px}.admin-facts>div{display:flex;justify-content:space-between;align-items:baseline;gap:18px;padding:12px 0;border-bottom:1px solid var(--line)}.admin-facts dt{color:var(--muted)}.admin-facts dd{margin:0;text-align:right;font-weight:600;font-size:13px;white-space:nowrap}.admin-disclaimer{font-size:11px;color:var(--muted);line-height:1.9;margin:15px 0 0}.admin-course-summary{display:flex;gap:17px;align-items:center;padding:15px 0}.admin-course-summary h3{margin:0 0 5px}.admin-course-summary p{font-size:12px;color:var(--muted);margin:0}.admin-course-summary>strong{margin-left:auto;font-size:23px;color:var(--purple);text-align:right}.admin-course-summary strong small{display:block;font-size:10px;color:var(--muted);font-weight:400}.admin-search{display:flex;align-items:flex-end;gap:14px;margin:20px 0 25px}.admin-search label{flex:1;margin:0;font-size:11px}.admin-search input,.admin-search select{padding:10px;font-size:12px}.admin-search button{padding:11px 22px}.admin-table-wrap{overflow:auto;max-width:100%}.admin-table{border-collapse:collapse;width:100%;font-size:12px;text-align:left}.admin-table th{font-size:10px;font-weight:500;letter-spacing:.4px;color:var(--muted);padding:12px 14px;background:var(--surface-2);white-space:nowrap}.admin-table td{padding:17px 14px;border-bottom:1px solid var(--line);vertical-align:middle;min-width:110px}.admin-table th:first-child,.admin-table td:first-child{padding-left:12px}.admin-table td small{display:block;color:var(--muted);font-size:10px;margin-top:5px}.account-name{font-size:13px;font-weight:600;color:var(--text)}.role-label{font-size:9px;color:var(--muted);display:block;margin-top:4px}.admin-badge{display:inline-block;white-space:nowrap;padding:5px 9px;border-radius:6px;font-size:10px;border:1px solid var(--line)}.admin-badge.positive{background:#edf7f1;color:#428965;border-color:#d9ebdf}.admin-badge.negative{background:#fbefef;color:#ac6770;border-color:#eed8db}.subscription-tag{display:block;font-size:10px;max-width:190px}.subscription-tag.disabled{color:#b2757c}.admin-progress{display:flex;flex-direction:column;gap:7px;min-width:100px}.admin-progress progress{display:block;appearance:none;height:5px;width:100%;border:0;border-radius:8px;overflow:hidden;background:var(--purple-soft)}.admin-progress progress::-webkit-progress-bar{background:var(--purple-soft);border-radius:8px}.admin-progress progress::-webkit-progress-value{background:var(--purple);border-radius:8px}.admin-progress progress::-moz-progress-bar{background:var(--purple);border-radius:8px}.admin-progress span{font-size:10px;color:var(--muted)}.admin-date{font-size:10px;color:var(--muted);white-space:nowrap}.admin-open{font-size:18px}.admin-pagination{display:flex;align-items:center;justify-content:space-between;margin-top:20px;font-size:11px;color:var(--muted)}.admin-pagination>div{display:flex;gap:20px}.admin-back{display:inline-block;margin-bottom:18px;font-size:12px}.admin-account-header{display:flex;align-items:center;gap:20px;margin-bottom:24px}.admin-account-header h2{margin-bottom:5px}.admin-account-header p{font-size:13px;color:var(--muted);margin-bottom:10px}.admin-account-header button{margin-left:auto;font-size:12px}.admin-person-icon{display:grid;place-items:center;width:66px;height:66px;border-radius:16px;background:var(--purple-soft);color:var(--purple);font-size:26px;flex:none}.danger-button{background:#fbefef;color:#a74e5e;border:1px solid #ecced5;font-size:12px}.danger-button:hover{background:#f5e0e5}.admin-notice{padding:15px 20px;border:1px solid #ecced5;background:#fbefef;color:#a74e5e;border-radius:9px;margin-bottom:22px;font-size:12px}.admin-enrollment{padding:18px 0;border-top:1px solid var(--line)}.admin-enrollment h3{font-size:15px}.admin-enrollment .section-head{align-items:start}.admin-facts.compact{font-size:12px}.admin-facts.compact dd{font-size:12px}.admin-help{display:block;font-size:10px;color:var(--muted);margin:12px 0 0}.admin-course-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.admin-empty{text-align:center;color:var(--muted);padding:40px!important}.admin-loading{color:var(--muted);font-size:13px;padding:35px}.admin-table tr:hover td{background:var(--surface-2)}[data-theme=dark] .admin-badge.positive{background:#253b2f;border-color:#34513f;color:#aad2b9}[data-theme=dark] .admin-badge.negative,[data-theme=dark] .danger-button,[data-theme=dark] .admin-notice{background:#462f38;color:#e9b3b3;border-color:#795562}
@media(max-width:1180px){.admin-metrics{grid-template-columns:repeat(2,1fr)}.admin-columns{grid-template-columns:1fr}.admin-table td{padding:15px 10px}.admin-search{flex-wrap:wrap}.admin-account-header{gap:15px}.admin-facts dd{white-space:normal}}
@media(max-width:640px){.admin-heading{align-items:start}.admin-heading>a{font-size:10px;white-space:nowrap}.admin-heading p{font-size:11px}.admin-tabs{gap:20px}.admin-tabs a{font-size:12px}.admin-metrics{gap:10px}.admin-metric{padding:17px 14px}.admin-metric>span{font-size:10px}.admin-metric>strong{font-size:27px}.admin-metrics.three{grid-template-columns:1fr}.admin-metrics.three .admin-metric{display:flex;align-items:center;justify-content:space-between}.admin-metrics.three .admin-metric>strong,.admin-metrics.three .admin-metric:last-child>strong{font-size:20px;margin:0}.admin-search label{min-width:135px}.admin-search button{flex:1}.admin-account-header{flex-wrap:wrap}.admin-account-header>div:nth-child(2){flex:1;min-width:150px}.admin-account-header button{margin:0;width:100%}.admin-account-header h2{font-size:20px}.admin-account-header p{font-size:12px;overflow-wrap:anywhere}.admin-person-icon{width:48px;height:48px;font-size:20px}.admin-course-grid{grid-template-columns:1fr}.admin-course-summary{gap:12px;flex-wrap:wrap}.admin-course-summary h3{font-size:14px}.admin-course-summary p{font-size:10px}.admin-course-summary>strong{font-size:20px}.admin-facts{font-size:12px}.admin-tabs{margin-bottom:20px}}
.verification-card{max-width:560px;margin:35px auto;padding:35px}.verification-card>p{color:var(--muted);font-size:14px;line-height:1.9}.verification-icon{width:58px;height:58px;display:grid;place-items:center;font-size:30px;background:var(--purple-soft);color:var(--purple);border-radius:15px;margin-bottom:25px}.verification-card h2{font-size:26px}.verification-card form{margin:25px 0}.verification-card form p{font-size:12px;color:var(--muted);margin-top:15px}.verification-card>a{font-size:13px}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}