:root{color-scheme:dark;--paper:#090d18;--surface:#121a2a;--raised:#182338;--ink:#f7f9fc;--body:#aab4c7;--line:#28344b;--cyan:#00e5ff;--lime:#b8ff3d;--red:#ff8ba0;--code:#0c1321;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}a{color:inherit;text-decoration:none}button,summary{cursor:pointer}button{color:inherit}button:disabled{opacity:.5;cursor:not-allowed}:focus-visible{outline:2px solid var(--cyan);outline-offset:5px}main:focus{outline:none}::selection{background:var(--cyan);color:var(--paper)}
.skip-link{position:absolute;top:-90px;left:20px;padding:15px;background:var(--cyan);color:var(--paper);z-index:30}.skip-link:focus{top:12px}
.site-header{max-width:1376px;padding:27px 48px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:105px}.brand{display:inline-flex;align-items:center;gap:12px;font-size:23px;font-weight:750;letter-spacing:-.8px;line-height:1}.brand-mark{display:grid;place-items:center;color:var(--cyan);border:1px solid var(--line);border-radius:10px;width:42px;height:42px;font:25px ui-monospace,monospace;letter-spacing:-4px;padding-right:4px}.brand-light{font-weight:400}.brand small{display:block;color:var(--body);letter-spacing:3.8px;font-size:9px;margin-top:8px}.site-header nav{display:flex;gap:30px;align-items:center;font-size:14px}.site-header nav>a{padding:12px 0}.site-header nav>a:hover,.text-link:hover{color:var(--cyan)}.site-header nav .header-continue{padding:11px 17px;border:1px solid var(--line);border-radius:7px}.header-continue span{color:var(--cyan);margin-left:18px}
.site-footer{max-width:1280px;margin:auto;padding:28px 0;border-top:1px solid var(--line);display:flex;gap:24px;align-items:center;justify-content:space-between;color:var(--body);font-size:12px;line-height:1.6}.site-footer>a{color:var(--ink);font-weight:600}.site-footer>a span{color:var(--cyan)}.site-footer p{margin:0}
.button{display:inline-flex;align-items:center;justify-content:center;gap:14px;min-height:48px;padding:14px 22px;border:1px solid var(--lime);border-radius:7px;background:var(--lime);color:#172309;font-weight:700;font-size:14px;text-align:center;line-height:1.4;transition:background .16s,transform .16s}.button:hover{background:#d0ff80;transform:translateY(-1px)}.button.secondary{border-color:var(--line);color:var(--ink);background:var(--surface)}.text-link{display:inline-block;color:var(--body);font-size:14px;line-height:1.6}
.eyebrow,.sidebar-label,.module-label{display:flex;align-items:center;gap:12px;color:var(--cyan);font-size:11px;font-weight:650;letter-spacing:1.8px;line-height:1.7;text-transform:uppercase;margin:0 0 24px}.eyebrow>span:not(.live-dot){color:var(--body);letter-spacing:1px}.live-dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);flex-shrink:0}h1,h2,h3{color:var(--ink)}h1{font-size:clamp(32px,3.5vw,46px);line-height:1.12;letter-spacing:-1.6px;font-weight:700;margin:0}h2{font-size:25px;line-height:1.3;letter-spacing:-.6px}.lede{color:var(--body);font-size:17px;line-height:1.8;margin:21px 0 30px;max-width:720px}.body-copy{color:var(--body);line-height:1.85;font-size:15px}.body-copy a,.note a,.prose a{color:var(--cyan);text-decoration:underline;text-underline-offset:4px}code{font-family:ui-monospace,"SFMono-Regular",Consolas,monospace;font-size:.9em;overflow-wrap:anywhere}p code,li code,.file-path code{color:#d4e5f2;background:#162236;border-radius:4px;padding:2px 5px}strong,b{font-weight:650}
.hero{max-width:1280px;margin:auto;display:grid;grid-template-columns:1.12fr 1fr;align-items:center;gap:65px;padding:75px 0 90px}.hero h1{font-size:clamp(44px,4.55vw,66px);letter-spacing:-2.9px;line-height:1.1}.hero h1>span{color:var(--cyan)}.hero-description{color:var(--body);font-size:17px;line-height:1.85;max-width:480px;margin:26px 0 29px}.hero-actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap}.hero-footnote{color:var(--body);font-size:12px;margin:20px 0 0}.hero-visual{min-width:0;position:relative}.visual-kicker{display:flex;justify-content:space-between;color:var(--body);letter-spacing:1.7px;font:11px ui-monospace,monospace;margin:0 0 15px}.visual-kicker span{color:var(--cyan)}.editor-demo{border:1px solid #34445e;border-radius:13px;background:var(--surface);box-shadow:0 20px 80px #00e5ff08;overflow:hidden}.editor-toolbar{display:flex;align-items:center;gap:20px;padding:17px 20px;border-bottom:1px solid var(--line);color:var(--body);font:12px ui-monospace,monospace}.editor-toolbar small{margin-left:auto;font-size:9px;letter-spacing:1px}.window-dots{color:#59677d;letter-spacing:3px;font-size:10px}.editor-demo .code-block{margin:0;border:0;border-radius:0;background:transparent}.editor-demo .code-caption{display:none}.editor-demo pre{padding:34px 23px 40px;font-size:12px;line-height:2.3}.editor-output{border-top:1px solid var(--line);padding:21px 24px 24px;font-family:ui-monospace,monospace}.editor-output>span{color:var(--body);font-size:9px;letter-spacing:2px}.editor-output p{font-size:12px;margin:15px 0 9px}.editor-output b{color:var(--lime)}.visual-caption{display:flex;align-items:center;gap:15px;padding:22px 3px 0}.visual-caption p{margin:0;font-size:12px;color:var(--body);line-height:1.8}.visual-caption strong{color:var(--ink);font-size:13px}.circle-symbol{display:grid;place-items:center;width:38px;height:38px;border:1px solid var(--line);color:var(--lime);border-radius:50%;font-size:20px;flex-shrink:0}
.intro-bottom{max-width:1280px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);padding:34px 0 52px;border-top:1px solid var(--line)}.intro-bottom>div{padding:0 32px;border-left:1px solid var(--line)}.intro-bottom>div:first-child{padding-left:0;border:0}.intro-bottom>div>span{font:10px ui-monospace,monospace;color:var(--cyan);letter-spacing:1.5px}.intro-bottom h2{font-size:18px;margin:14px 0 9px}.intro-bottom p{font-size:13px;color:var(--body);line-height:1.7;margin:0}
.journey,.lesson-layout{max-width:1180px;margin:auto;padding:48px 0 80px;display:grid;grid-template-columns:225px minmax(0,1fr);gap:74px}.journey-sidebar,.lesson-sidebar{position:sticky;top:30px;align-self:start}.sidebar-label{color:var(--body);font-size:10px;letter-spacing:1.2px}.step-list,.lesson-mini-list{list-style:none;padding:0;margin:0}.step-list li{padding-bottom:15px}.step-list a{display:flex;align-items:center;gap:13px;color:var(--body);font-size:13px}.step-index{display:grid;place-items:center;flex-shrink:0;width:32px;height:32px;border-radius:50%;border:1px solid var(--line);font:11px ui-monospace,monospace}.step-list [aria-current="step"]{color:var(--ink)}.step-list [aria-current="step"] .step-index{color:var(--cyan);border-color:var(--cyan);background:#00e5ff0a}.sidebar-help{font-size:12px;color:var(--body);line-height:1.9;margin-top:25px}.step-main{max-width:780px;min-width:0}.step-main>.eyebrow{margin-bottom:18px}.step-main>.eyebrow span{margin-left:auto}.panel{padding:25px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}
.learning-cycle{display:grid;grid-template-columns:1fr 24px 1fr 24px 1fr;gap:15px;padding:32px 18px;margin:28px 0;background:var(--surface);border:1px solid var(--line);border-radius:14px;text-align:center}.learning-cycle>div>span{color:var(--cyan);font:12px ui-monospace,monospace}.learning-cycle h2{margin:15px 0 10px;font-size:21px}.learning-cycle p{font-size:13px;line-height:1.8;color:var(--body);margin:0}.learning-cycle>b{align-self:center;color:var(--body);font-size:20px;font-weight:400}.note,.inline-note{border-left:2px solid var(--cyan);padding:16px 20px;margin:25px 0;color:var(--body);background:#00e5ff06;font-size:14px;line-height:1.85}.note strong{color:var(--ink)}.step-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:26px;margin-top:36px}.save-status{text-align:right;color:var(--body);font-size:11px;margin-top:16px;line-height:1.6}
.os-switch{display:inline-flex;max-width:100%;flex-wrap:wrap;gap:4px;padding:5px;background:var(--surface);border:1px solid var(--line);border-radius:9px;margin:0 0 24px}.os-switch button{background:transparent;border:0;color:var(--body);padding:10px 22px;border-radius:5px;font-size:13px;min-height:40px}.os-switch [aria-pressed="true"]{background:var(--raised);color:var(--cyan)}.instruction-list{list-style:none;counter-reset:instruction;padding:0;margin:18px 0}.instruction-list>li{counter-increment:instruction;position:relative;padding-left:39px;margin:26px 0;color:var(--body);font-size:15px;line-height:1.85}.instruction-list>li::before{content:counter(instruction,decimal-leading-zero);position:absolute;left:0;top:3px;color:var(--cyan);font:12px/1.85 ui-monospace,monospace}.instruction-list>li>strong{color:var(--ink);font-size:16px}.instruction-list p{margin:8px 0 12px}
.code-block{margin:20px 0;border:1px solid var(--line);background:var(--code);border-radius:10px;overflow:hidden}.code-caption{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 16px;background:#151e30;border-bottom:1px solid var(--line);color:var(--body);font:11px ui-monospace,monospace}.code-caption button{border:1px solid #38465e;padding:7px 10px;border-radius:5px;color:var(--body);background:transparent;font-size:11px}.code-caption button:hover{color:var(--cyan);border-color:var(--cyan)}pre{margin:0;padding:21px;overflow-x:auto;line-height:1.9;font-size:13px;color:#e2e9f5;tab-size:4}pre code{font-size:inherit;overflow-wrap:normal}.syntax-keyword{color:#85d9ff}.syntax-string{color:#b8e880}.syntax-number{color:#e5c280}.syntax-comment{color:#9aa8bd}
.terminal-result{padding:19px 22px;border:1px solid #3c5530;background:#b8ff3d05;border-radius:8px}.terminal-result>span{font:10px ui-monospace,monospace;letter-spacing:1px;color:var(--lime)}.terminal-result p{margin:10px 0 0;color:var(--body);font-size:14px;line-height:1.8}.detail{border:1px solid var(--line);border-radius:9px;margin:22px 0;overflow:hidden}.detail summary{padding:17px 19px;font-size:14px;color:var(--ink);line-height:1.7}.detail-body{padding:0 20px 18px;color:var(--body);font-size:14px;line-height:1.85}.detail-body p{margin:9px 0 14px}
.download-panel{display:flex;gap:24px;align-items:center;margin:30px 0 20px}.zip-icon{border:1px solid #35556a;color:var(--cyan);border-radius:9px;display:grid;place-items:center;width:72px;height:91px;font:16px ui-monospace,monospace;background:#00e5ff06;flex-shrink:0}.download-panel h2{font-size:21px;margin:0 0 9px}.download-panel p{color:var(--body);font-size:13px;margin:0 0 20px}.package-contents{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0 29px}.package-contents span{color:var(--body);font-size:11px;background:var(--surface);border-radius:5px;padding:7px 10px}.folder-window{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--surface);margin:27px 0}.folder-title{border-bottom:1px solid var(--line);padding:14px 20px;font:10px ui-monospace,monospace;color:var(--body);letter-spacing:1px}.folder-tree{font-size:12px;line-height:2.3}
.comparison{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin:25px 0}.comparison>div{border-top:2px solid var(--cyan);background:var(--surface);padding:23px;min-width:0}.comparison>div:nth-child(2){border-color:var(--lime)}.comparison .eyebrow{font-size:10px;margin-bottom:15px}.comparison h2,.comparison h3{margin:0 0 16px;font-size:23px}.comparison p{color:var(--body);font-size:14px;line-height:1.85;margin:0}.test-outcomes{border-block:1px solid var(--line);margin:25px 0}.test-outcomes p{display:flex;gap:22px;font-size:13px;line-height:1.9;color:var(--body);padding:5px 0}.test-outcomes b{color:var(--red);min-width:100px;font-family:ui-monospace,monospace}.test-outcomes p:last-child b{color:var(--lime)}
.lesson-layout{grid-template-columns:220px minmax(0,1fr);gap:65px}.lesson-sidebar>.text-link{margin-bottom:30px}.module-label{font-size:10px;margin-bottom:17px}.lesson-mini-list a{display:flex;align-items:baseline;gap:12px;margin:2px -12px;padding:12px;color:var(--body);font-size:12px;line-height:1.7;border-radius:6px}.lesson-mini-list a:hover{background:var(--surface)}.lesson-mini-list [aria-current="page"]{background:var(--surface);color:var(--ink)}.mini-number{color:var(--cyan);font:11px ui-monospace,monospace;flex-shrink:0}.lesson-main{max-width:850px;min-width:0}.lesson-heading h1{font-size:39px}.lesson-sub{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--body);margin:24px 0}.lesson-sub>span+span{padding-left:12px;border-left:1px solid var(--line)}.lesson-tabs{display:flex;gap:25px;border-bottom:1px solid var(--line);margin-bottom:30px}.lesson-tabs a{padding:15px 0;font-size:14px;line-height:1.7;color:var(--body);border-bottom:2px solid transparent}.lesson-tabs [aria-current="page"]{border-color:var(--cyan);color:var(--cyan)}
.prose{color:var(--body);font-size:16px;line-height:1.9;overflow-wrap:anywhere}.prose h2,.prose h3,.prose h4{color:var(--ink);line-height:1.4;letter-spacing:-.4px;margin:38px 0 16px}.prose h2{font-size:28px}.prose h3{font-size:24px}.prose h4{font-size:20px}.prose strong{color:var(--ink)}.prose p{margin:17px 0}.prose ul,.prose ol{padding-left:24px}.prose li{padding-left:4px;margin:9px 0}.prose .checklist-item{list-style:none;margin-left:-20px}.check-glyph{color:var(--lime);display:inline-block;margin-right:12px}.prose hr{border:0;border-top:1px solid var(--line);margin:30px 0}.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:9px;margin:25px 0}table{border-collapse:collapse;width:100%;font-size:13px;line-height:1.8}th{background:var(--surface);color:var(--ink);text-align:left;font-weight:600;padding:13px 16px}td{padding:14px 16px;border-top:1px solid var(--line);vertical-align:top;min-width:110px}
.concept-visual{padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:13px;margin:27px 0 40px}.concept-visual>.eyebrow{font-size:10px;margin-bottom:16px}.concept-visual>h2{font-size:25px;margin:0 0 24px;max-width:570px}.concept-visual .comparison>div{background:var(--paper);padding:19px}.concept-visual .comparison h3{font:20px ui-monospace,monospace}.reveal{border-top:1px solid var(--line);padding-top:17px;margin-top:25px;color:var(--body);font-size:14px;line-height:1.8}.reveal summary{color:var(--cyan)}.reveal p{margin-bottom:0}.value-flow{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:17px;margin:25px 0}.value-box{background:var(--paper);border:1px solid var(--line);padding:22px;border-radius:8px;text-align:center;min-width:130px}.value-box strong{display:block;font:21px ui-monospace,monospace;color:var(--lime);margin-bottom:12px}.value-box small{font-size:12px;color:var(--body)}.value-operation{font:13px ui-monospace,monospace;color:var(--cyan)}
.practice-action{margin:28px 0}.practice-action .eyebrow{margin-bottom:17px;font-size:10px}.file-path{font-size:12px;line-height:1.9;overflow-wrap:anywhere;color:var(--body);margin:14px 0}.file-label{display:inline-block;min-width:85px;color:var(--cyan);font-weight:600}.practice-action>.text-link{margin-top:17px}.completion{border:1px solid #425a35;padding:28px;border-radius:12px;margin-top:35px;background:#b8ff3d04}.completion h2{font-size:24px;margin:0 0 12px}.completion>p{font-size:14px;line-height:1.8;color:var(--body);margin-bottom:22px}.confirmation{display:flex;align-items:flex-start;gap:13px;margin:17px 0;font-size:14px;line-height:1.8;color:var(--body)}.confirmation input{flex-shrink:0;width:18px;height:18px;margin:4px 0 0;accent-color:var(--lime)}.completion .button{margin-top:14px}.completed-label{color:var(--lime)}
.track{max-width:1120px;margin:auto;padding:52px 0 75px}.track-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:45px;margin-bottom:42px}.track-heading .lede{max-width:650px;margin-bottom:0}.track-progress{min-width:180px;color:var(--body);font-size:12px}.track-progress strong{display:block;font:23px ui-monospace,monospace;color:var(--ink);margin-bottom:10px}progress{display:block;width:100%;height:5px;border:0;border-radius:5px;background:var(--line);margin-top:16px;accent-color:var(--lime)}progress::-webkit-progress-bar{background:var(--line);border-radius:5px}progress::-webkit-progress-value{background:var(--lime);border-radius:5px}progress::-moz-progress-bar{background:var(--lime)}.track-module{display:grid;grid-template-columns:210px minmax(0,1fr);gap:45px;border-top:1px solid var(--line);padding:32px 0}.track-module .eyebrow{font-size:10px;margin-bottom:10px}.track-module h2{font-size:23px;text-transform:capitalize;margin:0}.track-lessons{display:grid;gap:3px}.track-lesson{display:flex;gap:18px;align-items:center;padding:16px;border-radius:7px;border:1px solid transparent}.track-lesson:hover{background:var(--surface)}.track-lesson.is-current{background:var(--surface);border-color:#345266}.track-number{width:24px;flex-shrink:0;color:var(--body);font:12px ui-monospace,monospace}.track-lesson h3{font-size:14px;line-height:1.7;margin:0;font-weight:500}.track-status{font-size:11px;color:var(--body);margin-left:auto;flex-shrink:0}.is-current .track-status{color:var(--cyan)}.is-complete .track-status{color:var(--lime)}
.guide-page{max-width:850px;margin:auto;padding:40px 0 80px}.guide-page>.text-link{margin-bottom:30px}.guide-page>h1{font-size:36px;line-height:1.3}.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);opacity:0;pointer-events:none;transition:.2s;z-index:50;border:1px solid #3e6d4b;background:#162b22;color:var(--ink);padding:14px 22px;border-radius:9px;font-size:14px;line-height:1.7;width:max-content;max-width:min(90vw,600px);box-shadow:0 10px 35px #0005}.toast.visible{opacity:1;transform:translate(-50%,0)}.toast.error{background:#321b27;border-color:#995269}.storage-warning{max-width:1120px;margin:20px auto;border:1px solid #995269;border-radius:9px;padding:20px;color:#ffd7df;background:#271725;font-size:14px;line-height:1.8}.storage-warning p{margin:0 0 12px}.storage-warning button{padding:10px 13px;border:1px solid #995269;border-radius:6px;background:transparent;color:var(--ink)}.loading,.noscript{text-align:center;padding:100px 25px;color:var(--body);line-height:1.8}.loading-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--cyan);margin-right:9px}.error-page{max-width:700px;margin:60px auto;padding:25px}.error-page p{color:var(--body);line-height:1.8}
.value-operation::after{content:' →';white-space:pre}
@media(max-width:760px){.value-flow{flex-direction:column;gap:13px}.value-operation{text-align:center}.value-operation::after{content:'↓';display:block;margin-top:7px}.value-operation:empty::after{margin:0}}
@media(min-width:1600px){.hero{padding-block:110px}}
@media(max-width:1380px){.hero,.intro-bottom,.site-footer{margin-inline:48px}.journey,.lesson-layout,.track,.guide-page{margin-inline:64px}.hero{gap:40px}.storage-warning{margin-inline:48px}}
@media(max-width:1050px){.hero{grid-template-columns:1.1fr 1fr;gap:26px;padding-block:55px}.hero h1{font-size:47px}.hero-description{font-size:15px}.editor-demo pre{padding-inline:15px;font-size:11px}.journey,.lesson-layout{grid-template-columns:180px minmax(0,1fr);gap:34px;margin-inline:40px}.track-module{grid-template-columns:170px minmax(0,1fr);gap:20px}.lesson-heading h1{font-size:33px}}
@media(max-width:760px){.site-header{padding:23px 24px;min-height:90px;gap:16px}.brand{font-size:19px;gap:9px}.brand-mark{width:35px;height:35px;font-size:21px}.brand small{font-size:8px}.site-header nav{gap:20px;font-size:12px}.site-header nav>a:nth-child(2){display:none}.site-header nav .header-continue{padding:10px 12px}.header-continue span{margin-left:8px}.hero{grid-template-columns:1fr;margin-inline:26px;padding:40px 0 45px;gap:42px}.hero h1{font-size:clamp(42px,8.5vw,65px);letter-spacing:-2px}.hero .eyebrow{font-size:9px;letter-spacing:1.25px}.hero-description{font-size:16px;margin-block:23px}.hero-actions{gap:20px}.hero-visual{max-width:540px;width:100%}.editor-demo pre{font-size:11px;padding:25px 17px}.intro-bottom{grid-template-columns:1fr;gap:28px;margin-inline:26px;padding-bottom:40px}.intro-bottom>div{border:0;padding:0}.site-footer{margin-inline:26px;flex-wrap:wrap;gap:12px 18px}.site-footer p{order:3;width:100%}.footer-author{margin-left:auto}.journey,.lesson-layout{margin-inline:24px;padding-top:25px;grid-template-columns:1fr;gap:26px;padding-bottom:45px}.journey-sidebar,.lesson-sidebar{position:static}.sidebar-label,.sidebar-help{display:none}.step-list{display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid var(--line);padding-bottom:10px}.step-list .step-name{display:none}.step-main{max-width:none}.step-main h1{font-size:33px;letter-spacing:-1px}.lede{font-size:16px}.learning-cycle{padding:23px 12px;gap:7px;grid-template-columns:1fr 16px 1fr 16px 1fr}.learning-cycle h2{font-size:16px}.learning-cycle p{font-size:11px}.learning-cycle>b{font-size:16px}.os-switch button{padding-inline:18px}.instruction-list>li{padding-left:33px;font-size:14px}.instruction-list>li>strong{font-size:15px}.comparison{gap:13px}.comparison>div{padding:17px}.comparison h2,.comparison h3{font-size:20px}.comparison p{font-size:13px}.download-panel{padding:22px 18px;gap:17px}.download-panel h2{font-size:19px}.zip-icon{width:52px;height:70px;font-size:13px}.folder-tree{font-size:11px}.lesson-sidebar .module-label,.lesson-mini-list{display:none}.lesson-sidebar>.text-link{margin:0}.lesson-heading h1{font-size:32px}.lesson-heading .eyebrow{font-size:10px}.lesson-tabs{gap:19px}.lesson-tabs a{font-size:13px}.concept-visual{padding:22px 18px}.concept-visual>h2{font-size:22px}.concept-visual .comparison{grid-template-columns:1fr}.prose{font-size:15px}.prose h3{font-size:22px}pre{padding:18px;font-size:12px}.completion{padding:22px}.track,.guide-page{margin-inline:24px;padding-top:30px}.track-heading{display:block}.track h1{font-size:35px}.track-progress{max-width:220px;margin-top:25px}.track-module{display:block}.track-module>header{margin-bottom:20px}.track-lesson{padding:14px 10px;gap:10px;flex-wrap:wrap}.track-lesson h3{flex:1;font-size:13px}.track-status{margin-left:34px;width:calc(100% - 34px);font-size:10px}.storage-warning{margin-inline:24px}}
@media(max-width:400px){.site-header{padding-inline:20px}.site-header nav>a:first-child{display:none}.hero{margin-inline:22px}.hero h1{font-size:40px}.hero .eyebrow{font-size:8px}.comparison{grid-template-columns:1fr}.step-bottom .button{padding-inline:15px;font-size:13px}.os-switch button{padding-inline:15px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
.site-header nav{gap:20px}.switch-language{color:var(--cyan)}
@media(max-width:1050px){.site-header nav .nav-method{display:none}}
@media(max-width:760px){.site-header{flex-wrap:wrap}.site-header nav{flex-basis:100%;justify-content:space-between;gap:15px}.site-header nav a.switch-language{display:inline-block;font-size:12px}.site-header nav .nav-track,.site-header nav .nav-method{display:none}}