#android-home-lesson{--paper:#f8f6f2;--white:#fffefa;--ink:#24221f;--muted:#6b655e;--line:#dcd7cf;--accent:#b63c27;--soft:#efebe4;color-scheme:light;font:17px/1.65 var(--font-montserrat),Montserrat,sans-serif}#android-home-lesson *{box-sizing:border-box}#android-home-lesson{margin:0}#android-home-lesson button,#android-home-lesson input,#android-home-lesson textarea{font:inherit}#android-home-lesson a,#android-home-lesson button,#android-home-lesson input,#android-home-lesson summary,#android-home-lesson textarea{-webkit-tap-highlight-color:transparent}#android-home-lesson button,#android-home-lesson summary{cursor:pointer}#android-home-lesson a{color:inherit;text-decoration:none}#android-home-lesson figure,#android-home-lesson h1,#android-home-lesson h2,#android-home-lesson h3,#android-home-lesson p{margin:0}#android-home-lesson a:hover{color:var(--accent)}#android-home-lesson a:focus-visible,#android-home-lesson button:focus-visible,#android-home-lesson input:focus-visible,#android-home-lesson summary:focus-visible,#android-home-lesson textarea:focus-visible{outline:2px solid var(--accent);outline-offset:5px}#android-home-lesson [hidden]{display:none!important}#android-home-lesson img{display:block;max-width:100%}#android-home-lesson ::selection{background:#ecd3c9;color:var(--ink)}#android-home-lesson .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}#android-home-lesson .skip{position:fixed;left:20px;top:-100px;background:var(--ink);color:white;z-index:100;padding:10px 20px}#android-home-lesson .skip:focus{top:10px}#android-home-lesson .topbar{height:76px;display:flex;align-items:center;padding:0 36px;border-bottom:1px solid var(--line);position:fixed;inset:0 0 auto;z-index:50}#android-home-lesson .brand{font-size:25px;letter-spacing:-1.4px;font-weight:750;line-height:1}#android-home-lesson .brand span{color:var(--accent)}#android-home-lesson .top-separator{font-size:19px;color:#b5aea4}#android-home-lesson .project-name{font-size:15px}#android-home-lesson .header-download{margin-left:auto;font-size:14px}#android-home-lesson .menu-toggle{display:none;border:0;background:none;color:var(--ink);padding:10px 0}#android-home-lesson .sidebar{position:fixed;inset:76px auto 0 0;z-index:40;padding:36px 25px;overflow-y:auto;border-right:1px solid var(--line);background:var(--paper)}#android-home-lesson .overview-link{font-size:15px;display:block;padding:0 10px;margin-bottom:33px}#android-home-lesson .contents-label{font-size:12px;color:var(--muted);padding:0 10px;margin-bottom:10px}#android-home-lesson .lesson-nav{display:grid;gap:4px}#android-home-lesson .lesson-nav a{display:grid;grid-template-columns:22px 1fr;gap:10px;padding:12px 10px;align-items:start;font-size:14px;line-height:1.4;border-left:2px solid transparent}#android-home-lesson .nav-num{font-size:12px;color:#80786e;padding-top:1px;font-variant-numeric:tabular-nums}#android-home-lesson .lesson-nav a:hover{background:var(--soft)}#android-home-lesson .lesson-nav a.active{border-left-color:var(--accent);color:var(--accent);background:#eee6dd}#android-home-lesson .lesson-nav a.done .nav-num,#android-home-lesson .overview-link.active,#android-home-lesson .side-resources a.active{color:var(--accent)}#android-home-lesson .side-resources{border-top:1px solid var(--line);margin-top:24px;padding:21px 10px;display:grid;gap:12px;font-size:13px}#android-home-lesson .side-progress{padding:22px 10px 18px;border-top:1px solid var(--line);font-size:12px}#android-home-lesson .progress-heading{display:flex;justify-content:space-between;align-items:center}#android-home-lesson .progress-heading strong{font-weight:500;font-variant-numeric:tabular-nums}#android-home-lesson .progress-track{height:3px;background:var(--line);margin:12px 0}#android-home-lesson .progress-track i{display:block;height:100%;background:var(--accent);width:0}#android-home-lesson .side-home,#android-home-lesson .side-progress p{font-size:11px;color:var(--muted)}#android-home-lesson .side-home{display:block;margin:20px 10px 0}#android-home-lesson .shade{display:none}#android-home-lesson .android-main{margin-left:245px;padding-top:76px;min-height:100vh}#android-home-lesson .page{margin:0 auto;padding:64px 64px 40px;max-width:1270px;min-width:0}#android-home-lesson .intro-layout{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:45px}#android-home-lesson .byline{font-size:13px;color:var(--muted);margin-bottom:25px}#android-home-lesson .intro-copy h1{font-weight:520;font-size:clamp(42px,4.2vw,64px);letter-spacing:-2.5px;line-height:1.05;max-width:610px;margin-bottom:25px}#android-home-lesson .intro-lead{font-size:22px!important;line-height:1.45!important;color:var(--ink)!important;max-width:470px;margin-bottom:19px!important}#android-home-lesson .intro-copy>p:not(.byline){font-size:15px;line-height:1.75;max-width:470px;color:var(--muted)}#android-home-lesson .intro-actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin:29px 0 18px}#android-home-lesson .button{display:inline-flex;min-height:45px;align-items:center;justify-content:center;gap:24px;padding:10px 17px;background:transparent;border:1px solid #c8bfb3;border-radius:5px;font-size:14px;line-height:1.4;color:var(--ink);font-weight:550}#android-home-lesson .button.primary{background:var(--ink);color:var(--white);border-color:var(--ink)}#android-home-lesson .button.primary:hover{color:var(--white)}#android-home-lesson .text-link{font-size:14px;border-bottom:1px solid #9c9185;padding-bottom:3px;white-space:nowrap}#android-home-lesson .requirements-note{font-size:12px!important;color:var(--muted)!important}#android-home-lesson .phone-pair{display:flex;align-items:end;justify-content:center;gap:18px;padding-top:6px}#android-home-lesson .phone-pair img{width:calc(50% - 9px);height:auto;border:1px solid #a59d91;border-radius:19px;overflow:hidden}#android-home-lesson .phone-pair .s25{width:calc(44% - 9px);margin-bottom:29px}#android-home-lesson .phone-study figcaption{font-size:11px;line-height:1.65;color:var(--muted);margin-top:16px;max-width:380px}#android-home-lesson .course-outline{margin-top:70px;padding-top:40px;border-top:1px solid var(--line)}#android-home-lesson .section-intro{display:grid;grid-template-columns:1fr 1fr;gap:50px;margin-bottom:29px}#android-home-lesson .section-intro h2{font-size:29px;line-height:1.2;letter-spacing:-.8px;max-width:340px}#android-home-lesson .section-intro p{font-size:15px;color:var(--muted);max-width:440px}#android-home-lesson .chapter-row{display:grid;grid-template-columns:48px 1fr 28px;gap:23px;padding:25px 0;border-top:1px solid var(--line);align-items:center}#android-home-lesson .chapter-number{font-size:15px;font-weight:400;color:var(--muted);font-variant-numeric:tabular-nums}#android-home-lesson .chapter-row h3{font-size:21px;letter-spacing:-.35px;line-height:1.3}#android-home-lesson .chapter-row p{font-size:14px;line-height:1.5;color:var(--muted);margin-top:6px}#android-home-lesson .row-arrow{font-size:24px}#android-home-lesson .chapter-row:hover .row-arrow{color:var(--accent)}#android-home-lesson .try-demo{margin:50px 0 0;border-block:1px solid var(--line)}#android-home-lesson .try-demo>summary{list-style:none;display:flex;align-items:center;justify-content:space-between;font-size:20px;font-weight:500;padding:22px 0}#android-home-lesson .try-demo>summary::-webkit-details-marker{display:none}#android-home-lesson .try-demo[open]>summary{border-bottom:1px solid var(--line)}#android-home-lesson .demo-content{display:grid;grid-template-columns:1fr 280px;gap:60px;padding:35px 0}#android-home-lesson .demo-content h2{font-size:26px;font-weight:500;margin-bottom:18px}#android-home-lesson .demo-content p{font-size:16px;color:var(--muted);margin-top:15px;max-width:450px}#android-home-lesson .demo-phone{width:100%;border:1px solid #b0a69a;border-radius:24px;overflow:hidden}#android-home-lesson .demo-phone iframe{border:0;width:100%;aspect-ratio:852/1847;display:block}#android-home-lesson .end-note{font-size:13px;line-height:1.75;color:var(--muted);margin:32px 0}#android-home-lesson .bottom-brand{margin:35px 64px 0;padding:22px 0 28px;border-top:1px solid var(--line);display:flex;gap:24px;justify-content:space-between;font-size:11px;color:var(--muted)}#android-home-lesson .article{max-width:895px;padding-top:62px}#android-home-lesson .chapter-meta{font-size:13px;margin-bottom:18px}#android-home-lesson .lesson-heading h1{font-weight:520;font-size:46px;line-height:1.12;margin-bottom:20px}#android-home-lesson .chapter-lead{font-size:21px;line-height:1.5;max-width:630px}#android-home-lesson .before-you-begin{margin:31px 0 25px;padding-bottom:29px;border-bottom:1px solid var(--line);font-size:16px;color:var(--muted)}#android-home-lesson .lesson-steps{counter-reset:step;list-style:none;margin:0;padding:0}#android-home-lesson .lesson-steps>li{counter-increment:step;padding:20px 0 24px 40px;position:relative}#android-home-lesson .lesson-steps>li:before{content:counter(step)".";position:absolute;left:0;top:20px;font-size:18px;line-height:1.5;font-variant-numeric:tabular-nums;color:var(--muted)}#android-home-lesson .lesson-steps h3{font-size:21px;letter-spacing:-.3px;line-height:1.4;margin-bottom:9px}#android-home-lesson .lesson-steps p{font-size:17px;line-height:1.7}#android-home-lesson .end-note a,#android-home-lesson .help-content a,#android-home-lesson .lesson-steps a{text-decoration:underline;text-underline-offset:3px}#android-home-lesson code{font:13px/1.5 ui-monospace,Consolas,monospace;padding:2px 4px;background:var(--soft);border-radius:3px;overflow-wrap:anywhere}#android-home-lesson .agent-prompt{margin-top:34px;border:1px solid #cfc7bc;border-radius:7px;overflow:hidden}#android-home-lesson .prompt-top{display:flex;gap:20px;justify-content:space-between;align-items:center;padding:19px 22px}#android-home-lesson .prompt-top h2{font-size:19px;font-weight:550;letter-spacing:-.4px}#android-home-lesson .copy-button{display:flex;gap:15px;align-items:center;min-height:38px;padding:7px 12px;color:white;border:0;border-radius:4px;font-size:13px;font-weight:500;white-space:nowrap}#android-home-lesson .copy-button:hover{background:var(--accent)}#android-home-lesson .prompt-block>summary{font-size:14px;color:var(--muted);list-style:none;padding:0 22px 18px}#android-home-lesson .prompt-block>summary::-webkit-details-marker{display:none}#android-home-lesson .prompt-block>summary:before{content:"+";display:inline-block;margin-right:9px;width:12px}#android-home-lesson .prompt-block[open]>summary:before{content:"−"}#android-home-lesson .prompt-content{border-top:1px solid var(--line);padding:22px;background:#f0ece5}#android-home-lesson .prompt-content pre{white-space:pre-wrap;overflow-wrap:anywhere;margin:0;font:13px/1.85 ui-monospace,Consolas,monospace;color:#302b26}#android-home-lesson .prompt-hint{font-size:11px;color:var(--muted);border-top:1px solid var(--line);padding:12px 22px}#android-home-lesson .help{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:35px 0}#android-home-lesson .help summary{padding:20px 0;list-style:none;font-weight:500;font-size:16px;display:flex;gap:20px;justify-content:space-between}#android-home-lesson .help summary::-webkit-details-marker{display:none}#android-home-lesson .help summary:after{content:"+";font-weight:400;color:var(--muted)}#android-home-lesson .help[open] summary:after{content:"−"}#android-home-lesson .help-content{padding:0 0 20px;font-size:16px}#android-home-lesson .help-content p+p{margin-top:16px}#android-home-lesson .checkpoint{padding:5px 0 0;margin-top:35px}#android-home-lesson .checkpoint h2{font-size:16px;font-weight:600;margin-bottom:10px}#android-home-lesson .checkpoint p{font-size:17px;line-height:1.7}#android-home-lesson .exercise{margin:15px 0 40px;padding:25px 0;border-block:1px solid var(--line)}#android-home-lesson .exercise h2{font-size:22px;font-weight:550;letter-spacing:-.5px;line-height:1.35}#android-home-lesson .exercise p{font-size:15px;color:var(--muted);margin-top:12px}#android-home-lesson .exercise textarea,#android-home-lesson dialog textarea{width:100%;margin-top:18px;min-height:160px;background:var(--white);border:1px solid #bdb3a7;border-radius:5px;padding:16px;resize:vertical;font-size:16px;line-height:1.65;color:var(--ink)}#android-home-lesson .exercise .save-note{display:block;font-size:12px;margin-top:8px;color:var(--muted)}#android-home-lesson .checklist{list-style:none;padding:0;margin:20px 0 0;display:grid;gap:15px}#android-home-lesson .checklist label{display:flex;gap:12px;align-items:start;font-size:16px;cursor:pointer}#android-home-lesson .checklist input{width:17px;height:17px;margin:5px 0 0;accent-color:var(--accent);flex-shrink:0}#android-home-lesson .lesson-footer{max-width:767px;margin:10px auto 0;padding:28px 0;display:flex;justify-content:space-between;align-items:center;gap:30px;border-top:1px solid var(--line)}#android-home-lesson .lesson-footer>div>span{display:block;font-size:11px;color:var(--muted);margin-bottom:8px}#android-home-lesson .complete-button{border:0;background:none;color:var(--ink);padding:4px 0;font-size:14px;display:flex;gap:9px;align-items:center}#android-home-lesson .complete-button:before{content:"";width:16px;height:16px;border:1px solid #9c9285;border-radius:3px;display:inline-grid;place-items:center;font-size:13px;line-height:1}#android-home-lesson .complete-button[aria-pressed=true]:before{content:"✓";background:var(--accent);border-color:var(--accent);color:white}#android-home-lesson .lesson-footer .button{font-size:13px;max-width:320px}#android-home-lesson .tool-list{display:block;margin:36px 0 40px}#android-home-lesson .tool-list>div{display:block;padding:23px 0;border-top:1px solid var(--line)}#android-home-lesson .tool-list h3{font-weight:550;font-size:20px;margin-bottom:8px}#android-home-lesson .tool-list p{font-size:17px;line-height:1.7;color:var(--muted)}#android-home-lesson .article>h2{font-size:26px;font-weight:550;letter-spacing:-.5px}#android-home-lesson .article>p:not(.end-note){font-size:17px;line-height:1.7;margin-block:24px}#android-home-lesson .article>ul:not(.checklist){font-size:16px;line-height:1.8}#android-home-lesson .download-list{display:grid;margin-top:40px}#android-home-lesson .download-row{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;border-top:1px solid var(--line);padding:27px 0}#android-home-lesson .download-row h3{font-size:22px;font-weight:550;letter-spacing:-.4px}#android-home-lesson .download-row p{font-size:16px;color:var(--muted);margin:8px 0 10px}#android-home-lesson .download-row small{font-size:12px;color:var(--muted)}#android-home-lesson .page a[download]{overflow-wrap:anywhere}#android-home-lesson .flow-map{display:flex;gap:12px;align-items:center;margin:25px 0}#android-home-lesson .flow-map strong{font-size:15px;font-weight:500}#android-home-lesson .toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);padding:13px 20px;background:var(--ink);color:white;border-radius:5px;font-size:14px;z-index:100;max-width:90vw}#android-home-lesson dialog{width:min(640px,calc(100% - 32px));padding:28px;border:1px solid var(--line);border-radius:8px;background:var(--paper);color:var(--ink)}#android-home-lesson dialog::backdrop{background:#1b171280}#android-home-lesson dialog h2{font-size:25px;font-weight:550}#android-home-lesson dialog p{font-size:16px;margin-top:13px}#android-home-lesson dialog textarea{height:270px;margin-bottom:17px}@media(min-width:1650px){#android-home-lesson .page{padding-inline:80px}#android-home-lesson .intro-copy h1{font-size:67px}#android-home-lesson .phone-pair{gap:25px}#android-home-lesson .phone-pair .s24{max-width:235px}#android-home-lesson .phone-pair .s25{max-width:207px}}@media(max-width:1200px){#android-home-lesson .sidebar{width:220px;padding-inline:18px}#android-home-lesson .android-main{margin-left:220px}#android-home-lesson .page{padding:48px 40px 30px}#android-home-lesson .intro-layout{gap:30px}#android-home-lesson .intro-copy h1{font-size:47px;letter-spacing:-1.8px}#android-home-lesson .intro-lead{font-size:20px!important}#android-home-lesson .phone-pair{gap:12px}#android-home-lesson .bottom-brand,#android-home-lesson .lesson-footer{margin-inline:40px}#android-home-lesson .section-intro{gap:30px}}@media(max-width:950px){#android-home-lesson .topbar{height:64px;padding-inline:24px;gap:18px}#android-home-lesson .brand{font-size:23px}#android-home-lesson .header-download{display:none}#android-home-lesson .menu-toggle{display:flex;gap:13px;align-items:center;margin-left:auto;font-size:13px}#android-home-lesson .sidebar{inset:64px auto 0 0;width:285px;padding:28px 24px;transform:translateX(-100%);transition:transform .18s ease}#android-home-lesson .sidebar.open{transform:none}#android-home-lesson .shade.open{display:block;position:fixed;inset:64px 0 0;width:100%;height:calc(100% - 64px);padding:0;border:0;background:#17120e66;z-index:35}#android-home-lesson.menu-open{overflow:hidden}#android-home-lesson .android-main{margin-left:0;padding-top:64px}#android-home-lesson .page{padding:44px 30px 30px}#android-home-lesson .intro-copy h1{font-size:51px}#android-home-lesson .intro-layout{gap:40px}#android-home-lesson .article{max-width:790px}#android-home-lesson .bottom-brand,#android-home-lesson .lesson-footer{margin-inline:30px}#android-home-lesson .phone-pair .s24{max-width:220px}#android-home-lesson .phone-pair .s25{max-width:195px}}@media(max-width:650px){#android-home-lesson .topbar{gap:15px;padding-inline:20px}#android-home-lesson .project-name{font-size:12px;line-height:1.2;max-width:115px}#android-home-lesson .top-separator{display:none}#android-home-lesson .brand{font-size:22px}#android-home-lesson .menu-toggle{gap:8px;font-size:12px}#android-home-lesson .page{padding:35px 22px 26px}#android-home-lesson .intro-layout{grid-template-columns:1fr;gap:34px}#android-home-lesson .byline{font-size:12px;margin-bottom:21px}#android-home-lesson .intro-copy h1{font-size:44px;letter-spacing:-1.8px;line-height:1.07;margin-bottom:22px}#android-home-lesson .intro-lead{font-size:21px!important;line-height:1.45!important}#android-home-lesson .intro-copy>p:not(.byline){font-size:16px;line-height:1.7}#android-home-lesson .intro-actions{gap:24px;margin-top:25px}#android-home-lesson .phone-study{margin:0 -22px;padding:25px 26px 22px;background:#eae4db}#android-home-lesson .phone-pair{gap:22px;padding:0 4px;max-width:390px;margin:auto}#android-home-lesson .phone-pair .s24{width:50%;max-width:190px;border-radius:15px}#android-home-lesson .phone-pair .s25{width:43%;max-width:165px;margin-bottom:20px;border-radius:14px}#android-home-lesson .phone-study figcaption{font-size:11px;max-width:365px;margin:18px auto 0}#android-home-lesson .section-intro{grid-template-columns:1fr;gap:16px;margin-bottom:24px}#android-home-lesson .section-intro h2{font-size:29px;max-width:310px}#android-home-lesson .section-intro p{font-size:16px}#android-home-lesson .course-outline{margin-top:40px;padding-top:28px}#android-home-lesson .chapter-row{grid-template-columns:24px 1fr 20px;gap:14px;padding:23px 0}#android-home-lesson .chapter-number{font-size:13px}#android-home-lesson .chapter-row h3{font-size:20px}#android-home-lesson .chapter-row p{font-size:14px}#android-home-lesson .row-arrow{font-size:22px}#android-home-lesson .try-demo{margin-top:32px}#android-home-lesson .try-demo>summary{font-size:18px}#android-home-lesson .demo-content{grid-template-columns:1fr;gap:25px}#android-home-lesson .demo-phone{max-width:280px;margin:auto}#android-home-lesson .demo-content p{font-size:16px}#android-home-lesson .bottom-brand{margin:28px 22px 0;padding:20px 0;display:block}#android-home-lesson .bottom-brand span{display:none}#android-home-lesson .bottom-brand a{font-size:11px}#android-home-lesson .end-note{font-size:13px}#android-home-lesson .article{padding-top:33px}#android-home-lesson .chapter-meta{font-size:13px;margin-bottom:16px}#android-home-lesson .lesson-heading h1{font-size:36px;letter-spacing:-1.1px;line-height:1.12;margin-bottom:18px}#android-home-lesson .chapter-lead{font-size:20px;line-height:1.5}#android-home-lesson .before-you-begin{font-size:16px;margin-top:26px;padding-bottom:24px}#android-home-lesson .lesson-steps>li{padding:19px 0 22px 31px}#android-home-lesson .lesson-steps>li:before{font-size:16px;top:21px}#android-home-lesson .lesson-steps h3{font-size:20px;line-height:1.4}#android-home-lesson .lesson-steps p{font-size:17px;line-height:1.7}#android-home-lesson .prompt-top{padding:17px;gap:12px}#android-home-lesson .prompt-top h2{font-size:18px}#android-home-lesson .copy-button{font-size:12px;gap:11px;padding:8px 10px}#android-home-lesson .prompt-block>summary{padding:0 17px 17px}#android-home-lesson .prompt-content{padding:19px 17px}#android-home-lesson .prompt-content pre{font-size:12px;line-height:1.85}#android-home-lesson .prompt-hint{padding:12px 17px;font-size:11px}#android-home-lesson .help summary{font-size:16px;line-height:1.5}#android-home-lesson .help-content{font-size:16px}#android-home-lesson .exercise h2{font-size:23px}#android-home-lesson .exercise p{font-size:16px}#android-home-lesson .checkpoint p{font-size:17px}#android-home-lesson .lesson-footer{margin:0 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h3{font-size:27px}#android-home-lesson .tool-list p{font-size:15px;line-height:1.9}#android-home-lesson .download-row h3{font-size:29px}#android-home-lesson .download-row p{font-size:14px;line-height:1.9}#android-home-lesson .bottom-brand,#android-home-lesson .bottom-brand a{font-size:9px}}@media(max-width:360px){#android-home-lesson .project-name{display:none}#android-home-lesson .topbar{gap:14px}#android-home-lesson .brand img{width:120px}#android-home-lesson .menu-toggle{font-size:11px}#android-home-lesson .intro-copy h1{font-size:43px}#android-home-lesson .phone-study{margin-inline:-18px;padding-inline:20px}#android-home-lesson .make-it-yours{padding-inline:20px}#android-home-lesson .make-it-yours h2{font-size:35px}#android-home-lesson .connection-drawing{gap:4px}#android-home-lesson .connection-wire{width:52px}#android-home-lesson .connection-device{width:89px}#android-home-lesson .connection-device strong{font-size:18px}#android-home-lesson .design-study{grid-template-columns:93px 1fr;gap:15px}#android-home-lesson .design-study>img{width:93px}#android-home-lesson .design-study strong{font-size:21px}#android-home-lesson .design-study p{font-size:10px}#android-home-lesson .finish-panel{margin-inline:18px}}@media(prefers-reduced-motion:reduce){#android-home-lesson .button,#android-home-lesson .chapter-row,#android-home-lesson .copy-button,#android-home-lesson .progress-track i,#android-home-lesson .row-arrow{transition:none}#android-home-lesson .complete-button.complete-pop:before{animation:none}}#android-home-lesson .topbar .brand{font-family:var(--font-rosario),Rosario,sans-serif;font-size:28px;font-weight:650;letter-spacing:-1px;line-height:1.1;white-space:nowrap}@media(max-width:650px){#android-home-lesson .topbar .brand{font-size:23px;letter-spacing:-.8px}}#android-home-lesson .phone-pair{gap:20px;align-items:center}#android-home-lesson .phone-pair .live-phone{width:70%;margin-top:0;flex-shrink:0}#android-home-lesson .phone-pair .s24{width:23%;max-width:none;margin-top:55px}#android-home-lesson .phone-pair .live-phone iframe{display:block;pointer-events:auto}#android-home-lesson .phone-demo-hint{font-size:12px;font-weight:550;line-height:1.75;color:var(--accent);padding-top:10px;margin:0;max-width:360px}@media(max-width:650px){#android-home-lesson .phone-pair{gap:14px}#android-home-lesson .phone-pair .live-phone{width:75%;border-radius:19px}#android-home-lesson .phone-pair .s24{width:20%;margin-top:30px;border-radius:9px}#android-home-lesson .phone-demo-hint{font-size:11px;max-width:300px}}#android-home-lesson .other-phone{display:block;width:23%;flex-shrink:0;padding:0;margin:55px 0 0;border:1px solid #9c9186;border-radius:11px;overflow:hidden;background:transparent;cursor:pointer;box-shadow:0 13px 25px -16px #30201966}#android-home-lesson .phone-pair .other-phone img{width:100%;height:auto;border:0;border-radius:0}#android-home-lesson .other-phone:hover{outline:1px solid var(--signal);outline-offset:4px}#android-home-lesson .view-switch{display:flex;gap:18px;align-items:center}#android-home-lesson .view-switch button{border:0;border-bottom:2px solid transparent;background:none;padding:7px 0;font-size:11px;color:var(--muted);line-height:1.5;min-height:32px}#android-home-lesson .view-switch button[aria-pressed=true]{border-bottom-color:var(--signal);color:var(--ink);font-weight:600}#android-home-lesson .phone-demo-hint{font-size:10px;font-weight:400;color:var(--muted);padding-top:9px}@media(max-width:650px){#android-home-lesson .other-phone{width:20%;margin-top:30px;border-radius:9px}#android-home-lesson .view-switch{gap:17px}#android-home-lesson .view-switch button{font-size:11px}#android-home-lesson .phone-demo-hint{font-size:10px}}#android-home-lesson .topbar .brand{display:inline-flex;align-items:center;gap:9px}#android-home-lesson .topbar .brand .header-logo{display:block;width:43px;height:43px;flex-shrink:0}#android-home-lesson .topbar .brand .header-logo img{display:block;width:100%;height:100%;object-fit:contain}#android-home-lesson .topbar .brand-name{color:var(--ink)}#android-home-lesson .topbar .brand-name b{font-weight:inherit;color:var(--accent)}@media(max-width:650px){#android-home-lesson .topbar .brand{gap:6px}#android-home-lesson .topbar .brand .header-logo{width:33px;height:33px}#android-home-lesson .topbar .project-name{display:none}}#android-home-lesson{position:relative;display:grid;grid-template-columns:245px minmax(0,1fr);color:var(--ink);background:var(--paper);min-width:0;font-family:var(--font-montserrat),Montserrat,sans-serif}#android-home-lesson.menu-open{overflow:visible}#android-home-lesson .topbar{grid-column:1/-1;position:sticky;inset:auto;top:var(--site-header-height);height:64px;z-index:45;padding:0 30px;gap:24px}#android-home-lesson .lesson-back{font-size:13px;font-weight:600}#android-home-lesson .header-discussion{margin-left:auto;font-size:13px;color:var(--accent)}#android-home-lesson .header-download{margin-left:0}#android-home-lesson .sidebar{position:sticky;inset:auto;top:calc(var(--site-header-height) + 64px);grid-column:1;align-self:start;width:245px;height:calc(100svh - var(--site-header-height) - 64px)}#android-home-lesson .android-main{grid-column:2;margin:0;padding:0;min-width:0}#android-home-lesson .page{padding-top:46px}#android-home-lesson .lesson-teaser{margin-top:48px}#android-home-lesson .lesson-teaser h2{font-size:35px;line-height:1.15;margin:12px 0 22px}#android-home-lesson .lesson-teaser video{display:block;width:min(100%,600px);height:auto;aspect-ratio:1;background:#f1ead9}#android-home-lesson .lesson-teaser>p:last-child{font-size:12px;line-height:1.8;max-width:58ch;margin-top:14px}#android-home-lesson .lesson-community{max-width:900px;margin:40px auto;padding:30px 40px;border-block:1px solid var(--line)}#android-home-lesson .lesson-community h2{font-size:34px;line-height:1.15;margin:12px 0}#android-home-lesson .lesson-community>p{font-size:15px;line-height:1.85}#android-home-lesson .lesson-community .button{margin-top:20px}#android-home-lesson .lesson-community .community-access{font-size:11px;margin-top:14px;max-width:70ch}@media(max-width:950px){#android-home-lesson{grid-template-columns:minmax(0,1fr)}#android-home-lesson .android-main{grid-column:1}#android-home-lesson .sidebar{position:fixed;inset:calc(var(--site-header-height) + 64px) auto 0 0;width:min(300px,90vw);height:auto}#android-home-lesson .shade.open{inset:calc(var(--site-header-height) + 64px) 0 0;height:auto}}@media(max-width:650px){#android-home-lesson .topbar{padding-inline:18px;gap:17px}#android-home-lesson .project-name,#android-home-lesson .top-separator{display:none}#android-home-lesson .header-discussion,#android-home-lesson .header-download,#android-home-lesson .lesson-back{font-size:11px}#android-home-lesson .lesson-community{margin:25px 22px;padding:25px 0}#android-home-lesson .lesson-community h2{font-size:30px}}