@font-face{font-family:Jost;src:url('assets/jost.woff2') format('woff2');font-weight:400;font-display:swap}
:root{--paper:#f7f9f6;--ink:#182c22;--green:#237148;--accent:#35ae6d;--muted:#5d6b61;--line:#d1d9d0;--soft:#e9eee7;--white:#fff;--display:Jost,'Helvetica Neue',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:108px}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button{cursor:pointer;color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible,select:focus-visible{outline:2px solid var(--green);outline-offset:5px}img{max-width:100%;display:block;height:auto}figure,h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.12;letter-spacing:-.035em}h1{font-size:clamp(48px,5.4vw,82px)}h2{font-size:40px}h3{font-size:27px}p+p{margin-top:16px}strong{font-weight:600}.eyebrow{font-size:10px;line-height:1.5;letter-spacing:.13em;text-transform:uppercase;color:var(--green)}.skip{position:fixed;top:-100px;left:16px;background:var(--ink);color:white;padding:10px;z-index:100}.skip:focus{top:10px}.mast{height:88px;position:sticky;top:0;z-index:10;background:var(--paper);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:28px;padding:0 40px}.signature{display:flex;align-items:center;gap:26px;flex-shrink:0}.signature img{width:112px;height:auto}.signature>span{border-left:1px solid var(--line);padding-left:24px;font-size:10px;letter-spacing:.15em}.mast #location{font-size:12px;color:var(--muted);margin-left:auto}.review-link{font-size:11px;border-bottom:1px solid var(--line);padding:8px 0}.review-link span{margin-left:12px}.mast button{display:none;background:none;border:1px solid var(--line);min-height:44px;padding:0 14px;font-size:12px}.mast button span{margin-left:12px}.book{display:grid;grid-template-columns:238px minmax(0,1fr);max-width:1600px;margin:auto}.rail{position:sticky;top:88px;height:calc(100vh - 88px);border-right:1px solid var(--line);padding:37px 25px 26px 32px;display:flex;flex-direction:column;overflow:auto}.rail-top>a{display:block;font:27px/1.25 var(--display);margin:17px 0 12px;letter-spacing:-.03em}.rail-top p{font-size:12px;line-height:1.75;color:var(--muted)}.rail nav{margin-top:36px}.chapter-link{display:grid;grid-template-columns:23px 1fr;gap:10px;padding:16px 9px 16px 0;font-size:12px;line-height:1.5;border-top:1px solid var(--line);position:relative}.chapter-link:last-child{border-bottom:1px solid var(--line)}.chapter-link .num{font-size:10px;color:var(--muted);padding-top:2px;font-variant-numeric:tabular-nums}.chapter-link small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.chapter-link[aria-current=page]{color:var(--green)}.chapter-link[aria-current=page]:before{content:'';position:absolute;left:-15px;top:20px;width:4px;height:4px;border-radius:50%;background:var(--green)}.chapter-link:hover{color:var(--green)}.rail-bottom{margin-top:auto;padding-top:48px}.rail-bottom p{font:19px var(--display);margin-top:12px}.rail-bottom>span{font-size:8px;letter-spacing:.1em;color:var(--muted)}.page{padding:0 56px;min-width:0}.page>main{max-width:1050px;margin:auto;outline:none}.footer{max-width:1050px;margin:70px auto 0;border-top:1px solid var(--line);padding:24px 0 32px;display:flex;justify-content:space-between;gap:20px;font-size:10px;color:var(--muted)}.cover-top{display:flex;justify-content:space-between;align-items:center;padding:35px 0 29px;border-bottom:1px solid var(--line)}.cover-top>span:last-child{font-size:10px;color:var(--muted)}.cover-title{display:grid;grid-template-columns:1.3fr .8fr;gap:45px;align-items:end;padding:42px 0 38px}.cover-title h1{font-size:clamp(52px,6vw,88px);line-height:1.02;letter-spacing:-.055em}.cover-title h1 span{color:var(--green)}.cover-title .intro{max-width:315px;margin-left:auto}.intro p{font-size:15px;color:var(--muted);line-height:1.75}.primary{display:inline-flex;background:var(--ink);color:var(--paper);padding:14px 20px;gap:35px;align-items:center;font-size:12px;min-height:48px;border:0}.primary:hover{background:var(--green)}.cover-title .primary{margin-top:24px}.cover-art img{width:100%;aspect-ratio:2;object-fit:cover}.cover-art figcaption,.figure-caption{display:flex;justify-content:space-between;gap:20px;font-size:10px;line-height:1.6;color:var(--muted);padding:13px 0;border-bottom:1px solid var(--line)}.figure-caption span:first-child{color:var(--green);flex-shrink:0;letter-spacing:.08em}.cover-note{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;padding:42px 0 35px}.cover-note h2{font-size:32px;max-width:300px}.cover-note p{font-size:14px;line-height:1.85;color:var(--muted)}.contents-heading{display:flex;justify-content:space-between;align-items:end;padding:20px 0}.contents-heading h2{font-size:38px}.contents-heading>span{font-size:11px;color:var(--muted)}.contents-row{display:grid;grid-template-columns:40px 1fr 125px 20px;gap:20px;align-items:center;border-top:1px solid var(--line);padding:24px 0}.contents-row:last-child{border-bottom:1px solid var(--line)}.contents-row>.num{font:24px var(--display);color:var(--green)}.contents-row h3{font-size:28px}.contents-row p{font-size:12px;color:var(--muted);margin-top:6px}.contents-row small{font-size:10px;color:var(--muted)}.contents-row .arrow{color:var(--green);font-size:21px}.contents-row:hover h3{color:var(--green)}.new-here{margin-top:32px;padding:22px 26px;border-left:2px solid var(--accent);background:var(--soft);font-size:13px;display:flex;justify-content:space-between;gap:20px}.new-here a{color:var(--green);white-space:nowrap;text-decoration:underline;text-underline-offset:4px}.article-top{padding:35px 0 23px;display:flex;justify-content:space-between;border-bottom:1px solid var(--line);font-size:10px;color:var(--muted)}.article-head{display:grid;grid-template-columns:1.35fr 1fr;gap:45px;align-items:center;padding:40px 0 35px}.article-head h1{font-size:clamp(43px,5vw,70px);margin:17px 0 21px}.standfirst{font-size:16px;color:var(--muted);max-width:490px;line-height:1.8}.article-head .head-art{overflow:hidden;background:var(--soft)}.head-art img{width:100%;height:280px;object-fit:cover}.head-art.watch img{object-fit:contain}.meta{display:flex;gap:16px;font-size:10px;color:var(--muted);margin-top:23px}.section-index{display:flex;flex-wrap:wrap;gap:8px 25px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-size:11px;color:var(--green)}.section-index a{min-height:30px;display:flex;align-items:center}.chapter-section{padding:50px 0 0;scroll-margin-top:22px}.section-head{display:grid;grid-template-columns:36px minmax(0,1fr);gap:16px;align-items:baseline;margin-bottom:26px}.section-head .step-number{font:22px var(--display);color:var(--green)}.section-head h2{font-size:36px}.section-head p{font-size:14px;color:var(--muted);max-width:620px;margin-top:13px;line-height:1.8}.prose{max-width:680px;margin:24px auto;font-size:15px;line-height:1.85}.prose a,.text-link{color:var(--green);text-decoration:underline;text-underline-offset:4px}.split{display:grid;grid-template-columns:minmax(0,.88fr) minmax(0,1.18fr);gap:36px;align-items:center;margin:24px 0}.split.reverse{grid-template-columns:minmax(0,1.18fr) minmax(0,.88fr)}.split p{font-size:14px;color:var(--muted);line-height:1.85}.steps{padding:0;list-style:none;counter-reset:item}.steps li{position:relative;counter-increment:item;padding:0 0 22px 30px;font-size:14px;line-height:1.8}.steps li:before{content:counter(item,decimal-leading-zero);position:absolute;left:0;top:3px;font-size:10px;color:var(--green)}.steps li strong{color:var(--ink)}.steps li:last-child{padding-bottom:0}.panel{padding:28px;background:var(--soft);min-width:0}.picture{margin:25px 0}.picture>button{display:block;border:0;background:var(--soft);padding:0;width:100%;cursor:zoom-in}.picture>button img{width:100%}.picture figcaption{font-size:10px;line-height:1.7;color:var(--muted);padding:12px 0;border-bottom:1px solid var(--line);display:flex;gap:16px;justify-content:space-between}.picture figcaption em{font-style:normal;white-space:nowrap;color:var(--green)}.diagram-caption{font-size:10px;color:var(--muted);padding-top:14px}.route-art{background:var(--soft);padding:30px 20px}.route-nodes{display:grid;grid-template-columns:1fr 24px 1fr 24px 1fr 24px 1fr;gap:10px;align-items:center}.route-node{text-align:center;min-width:0}.route-node svg{height:57px;width:66px;fill:none;stroke:var(--green);stroke-width:1.4}.route-node strong{display:block;font:21px var(--display);margin-top:14px}.route-node small{font-size:10px;color:var(--muted);line-height:1.5;display:block;margin-top:5px}.route-arrow{color:var(--green);text-align:center}.route-art>p{font-size:11px;text-align:center;color:var(--muted);border-top:1px solid var(--line);padding-top:20px;margin-top:23px}.definition-list{display:grid;grid-template-columns:1fr 1fr 1fr;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-top:25px}.definition-list>div{padding:24px;border-right:1px solid var(--line)}.definition-list>div:first-child{padding-left:0}.definition-list>div:last-child{border:0}.definition-list h3{font-size:24px;margin-bottom:12px}.definition-list p{font-size:13px;line-height:1.8;color:var(--muted)}.check{margin-top:34px;display:grid;grid-template-columns:28px 1fr;gap:14px;padding:23px 27px;background:var(--soft);font-size:14px}.check .tick{color:var(--green);font-size:22px}.check strong{display:block;margin-bottom:5px}.check p{color:var(--muted);font-size:13px}.note{border-left:2px solid var(--accent);padding:5px 0 5px 20px;margin:25px 0;font-size:13px;color:var(--muted)}.note strong{color:var(--ink)}.preview-note{font-size:12px;background:#edf0e7;border-left:2px solid #76805f;padding:15px 20px;margin:22px 0}.preview-note strong{display:block}.chapter-end{border-top:1px solid var(--line);margin-top:50px;padding-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:35px}.chapter-end a:last-child{text-align:right}.chapter-end small{font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.chapter-end strong{display:block;font:27px var(--display);margin-top:7px}.chapter-end a:hover{color:var(--green)}details{border-bottom:1px solid var(--line);padding:17px 0;font-size:13px}summary{cursor:pointer;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:20px}summary:after{content:'+';color:var(--green);font-size:20px;line-height:1}details[open] summary:after{content:'−'}details p{color:var(--muted);line-height:1.85;padding-top:13px;max-width:680px}.sources{font-size:11px;color:var(--muted);margin-top:25px}.sources a{text-decoration:underline;text-underline-offset:3px;margin-right:15px}.ui-window{background:#fcfdfb;border:1px solid #c8d2c6;border-radius:9px;box-shadow:0 15px 35px #152e2010;overflow:hidden;color:#20372a}.ui-title{padding:12px 16px;border-bottom:1px solid #dce2d8;font-size:10px;display:flex;justify-content:space-between;align-items:center}.dots{color:#9caaa0;letter-spacing:3px;font-size:9px}.ui-body{padding:24px}.ui-body>h3{font:27px var(--display);margin-bottom:12px}.ui-body p{font-size:12px;color:#60705f;line-height:1.7}.ui-row{display:flex;justify-content:space-between;gap:20px;padding:15px 0;border-bottom:1px solid #e0e6dc;font-size:12px;align-items:center}.ui-row:last-child{border-bottom:0}.ui-button{display:inline-block;background:#236c46;color:white;border-radius:5px;padding:8px 13px;font-size:11px;line-height:1.4}.ui-button.soft{background:#edf2e8;color:#285d3d}.ui-kicker{font-size:9px;letter-spacing:.1em;color:#60705f;margin-bottom:14px}.ui-field{padding:9px 12px;border:1px solid #c4d2c1;border-radius:4px;font-size:13px;margin:7px 0 13px;background:#fff;color:#20372a}.ui-field.active{outline:2px solid #237148;outline-offset:2px}.ui-label{font-size:10px;color:#60705f}.ui-actions{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-top:22px}.ui-actions>span:first-child{font-size:11px}.ui-check{color:#237148;font-size:12px;margin:11px 0}.ui-foot{font-size:10px;color:#60705f;margin-top:18px;border-top:1px solid #e0e6dc;padding-top:13px}.phone-settings{max-width:270px;margin:auto;border:1px solid #c6cfc4;border-radius:24px;background:#fcfdfb;padding:18px 18px 24px;box-shadow:0 14px 28px #142d2010}.phone-settings .status{display:flex;justify-content:space-between;font-size:10px;margin-bottom:25px}.phone-settings h3{font:600 20px -apple-system,sans-serif;letter-spacing:-.03em;margin-bottom:20px}.phone-settings .available{font-size:8px;letter-spacing:.09em;color:#657267;margin:25px 0 5px}.phone-settings .install{display:flex;align-items:center;gap:10px;font-size:12px;border-top:1px solid #dee6d9;border-bottom:1px solid #dee6d9;padding:14px 0}.install .app-icon{width:32px;height:32px;border-radius:8px;background:#1b3527;padding:6px}.install .app-icon img{height:100%;width:100%}.install b{margin-left:auto;color:#237148;font-size:10px;font-weight:500}.watch-pair{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:start;padding:30px}.watch-pair img{max-height:240px;width:auto;margin:auto}.watch-pair figcaption{text-align:center;margin-top:17px;font-size:11px;color:var(--muted)}.watch-pair figcaption b{font-weight:500;color:var(--green)}.watch-face{width:170px;height:203px;border-radius:39px;background:#19261f;color:#f5f8f2;padding:27px 21px 20px;margin:auto;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 0 0 5px #63736a,0 0 0 8px #c3cec5}.watch-face .date{font-size:9px;letter-spacing:.08em}.watch-face .time{font:44px/1 var(--display);letter-spacing:-.04em}.complication{font-size:11px;background:#34483b;padding:10px;border-radius:12px;display:flex;gap:10px;align-items:center}.complication svg{width:18px;height:22px;stroke:#6ed99b;fill:none;stroke-width:1.6}.complication-stage{padding:40px 20px 28px;position:relative}.complication-stage>p{text-align:center;font-size:11px;margin-top:28px;color:var(--green)}.file-diagram{display:grid;grid-template-columns:1fr 35px 1.2fr;gap:10px;align-items:center;padding:25px}.file-folder{border:1px solid var(--line);padding:22px 18px;background:var(--paper)}.file-folder h3{font-size:25px}.file-folder code{display:block;font-size:11px;margin-top:14px;color:var(--muted);line-height:1.8;overflow-wrap:anywhere}.file-reader{font:24px var(--display)}.file-reader small{display:block;font:11px/1.7 -apple-system,sans-serif;color:var(--muted);margin-top:8px}.file-link{font-size:20px;color:var(--green)}.consent-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin:25px 0}.consent-flow>div{background:var(--paper);padding:22px}.consent-flow .circle{width:34px;height:34px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;font:17px var(--display);color:var(--green);margin-bottom:18px}.consent-flow h3{font-size:23px}.consent-flow p{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.8}.person-avatar{width:52px;height:52px;background:#e3ece1;border-radius:50%;display:grid;place-items:center;color:#237148;font:25px var(--display);margin-bottom:16px}.clip{display:flex;gap:12px;align-items:center;border:1px solid #dce3d8;margin:9px 0;padding:10px 12px;border-radius:5px;font-size:12px}.clip .wave{color:#237148;letter-spacing:2px;margin-right:auto}.clip .heard{font-size:9px;color:#237148}.ui-quote{font:22px/1.5 var(--display);padding:15px 0}.pill{display:inline-block;border-radius:20px;background:#e7f0e3;color:#237148;padding:4px 10px;font-size:10px}.consent-demo{border:1px solid var(--line);background:var(--soft);padding:28px}.demo-label{display:flex;justify-content:space-between;align-items:center;font-size:9px;letter-spacing:.1em;color:var(--muted);margin-bottom:20px}.consent-demo .ui-window{max-width:500px;margin:auto}.demo-buttons{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:20px}.demo-buttons button{border:1px solid var(--line);background:var(--paper);padding:10px 14px;font-size:11px;min-height:44px}.demo-buttons button[aria-pressed=true]{border-color:var(--green);color:var(--green);background:#dfecdc}.caption-inline{font-size:10px;color:var(--muted);margin-top:14px;text-align:center}.contents-dialog{width:min(430px,100%);max-width:100%;height:100dvh;max-height:100dvh;border:0;border-left:1px solid var(--line);margin:0 0 0 auto;background:var(--paper);color:var(--ink);padding:25px;overflow:auto}.contents-dialog::backdrop,.image-dialog::backdrop{background:#13281dd0}.contents-dialog>header{display:flex;justify-content:space-between;align-items:center;padding-bottom:28px}.contents-dialog h2{font-size:40px;margin-top:15px}.contents-dialog button{min-width:44px;min-height:44px;background:none;border:1px solid var(--line);font-size:24px}.contents-dialog .chapter-link{padding:22px 0;font-size:17px}.contents-dialog .chapter-link small{font-size:12px}.image-dialog{border:0;padding:18px;background:var(--paper);color:var(--ink);max-width:96vw;max-height:95dvh;width:max-content}.image-dialog header{display:flex;justify-content:space-between;align-items:center;gap:30px;margin-bottom:15px;font-size:12px}.image-dialog button{min-height:44px;background:none;border:1px solid var(--line);padding:8px 15px;font-size:12px}.image-dialog>img{max-height:calc(95dvh - 100px);width:auto;max-width:90vw;object-fit:contain;margin:auto}.embed .review-link{display:none}.embed .mast{padding:0 24px}.embed .page{padding:0 32px}.embed .rail{padding-left:24px}.embed .book{grid-template-columns:205px minmax(0,1fr)}.embed .rail-top>a{font-size:25px}.embed .cover-title{gap:20px}.embed .cover-title h1{font-size:62px}.embed .cover-title .intro p{font-size:13px}
@media(min-width:1500px){.page{padding:0 70px}}@media(max-width:1180px){.book{grid-template-columns:210px minmax(0,1fr)}.page{padding:0 34px}.rail{padding-left:24px;padding-right:20px}.mast{padding:0 28px}.cover-title{gap:25px}.article-head{gap:25px}.head-art img{height:245px}.section-head h2{font-size:33px}.split{gap:24px}.ui-body{padding:20px}.review-link{display:none}}@media(max-width:900px){.mast #location{display:none}.mast #contents-open{margin-left:auto;display:block}.book,.embed .book{display:block}.rail{display:none}.page,.embed .page{padding:0 38px}.cover-title h1,.embed .cover-title h1{font-size:74px}.cover-title{grid-template-columns:1.2fr 1fr}.article-head h1{font-size:58px}.head-art img{height:240px}.footer{margin-top:45px}.cover-note{gap:30px}.chapter-link[aria-current=page]:before{left:-12px}}
@media(max-width:600px){body{font-size:15px}.mast,.embed .mast{height:76px;padding:0 20px;gap:12px}.signature{gap:17px}.signature img{width:89px}.signature>span{padding-left:16px;font-size:8px}.mast button{font-size:11px;padding:0 10px}.mast button span{margin-left:7px}.page,.embed .page{padding:0 22px}.cover-top{padding:24px 0 20px;gap:15px}.cover-top .eyebrow{font-size:8px}.cover-top>span:last-child{font-size:9px}.cover-title{grid-template-columns:1fr;gap:24px;padding:30px 0}.cover-title h1,.embed .cover-title h1{font-size:64px}.cover-title .intro{max-width:none;margin:0}.intro p,.embed .cover-title .intro p{font-size:15px;max-width:330px}.cover-title .primary{margin-top:20px}.cover-art{margin:0 -22px}.cover-art img{aspect-ratio:1.3;object-position:50% center}.cover-art figcaption{margin:0 22px;font-size:9px;gap:12px}.cover-art figcaption>span:last-child{display:none}.cover-note{grid-template-columns:1fr;gap:20px;padding:30px 0}.cover-note h2{font-size:32px;max-width:330px}.cover-note p{font-size:14px}.contents-heading{padding:20px 0}.contents-heading h2{font-size:34px}.contents-row{grid-template-columns:27px minmax(0,1fr) 16px;gap:12px;padding:23px 0}.contents-row h3{font-size:26px}.contents-row small{display:none}.contents-row .num{font-size:20px}.contents-row p{font-size:12px}.new-here{display:block;padding:18px 20px;font-size:12px}.new-here a{display:inline-block;margin-top:10px}.footer{flex-wrap:wrap;font-size:9px;gap:15px;margin-top:40px}.footer>span:nth-child(2){display:none}.article-top{padding:24px 0 18px;font-size:9px}.article-head{grid-template-columns:1fr;gap:25px;padding:30px 0 26px}.article-head h1{font-size:52px;margin:12px 0 18px}.standfirst{font-size:15px}.meta{margin-top:20px}.head-art img{height:200px;aspect-ratio:1.7;object-fit:cover}.head-art.watch img{object-position:center 40%;object-fit:cover}.section-index{gap:4px 18px;padding:14px 0;font-size:10px}.section-index a{min-height:36px}.chapter-section{padding-top:35px}.section-head{grid-template-columns:25px 1fr;gap:10px;margin-bottom:22px}.section-head h2{font-size:31px}.section-head .step-number{font-size:18px}.section-head p{font-size:13px}.split,.split.reverse{grid-template-columns:1fr;gap:25px}.panel{padding:22px}.prose{font-size:14px;margin:20px 0}.route-art{padding:24px 16px}.route-nodes{grid-template-columns:1fr 24px 1fr;row-gap:27px}.route-arrow:nth-child(4){display:none}.route-node svg{height:48px}.route-node strong{font-size:22px;margin-top:8px}.route-node small{font-size:10px}.definition-list{grid-template-columns:1fr}.definition-list>div,.definition-list>div:first-child{padding:20px 0;border:0;border-bottom:1px solid var(--line)}.definition-list h3{font-size:25px;margin-bottom:8px}.definition-list p{font-size:13px}.check{padding:20px 17px;gap:9px;grid-template-columns:23px 1fr}.check p{font-size:12px}.picture figcaption{display:block;font-size:9px}.picture figcaption em{display:block;margin-top:5px}.watch-pair{padding:22px 15px;gap:20px}.watch-pair img{max-height:200px}.watch-pair figcaption{font-size:10px}.consent-flow{grid-template-columns:1fr}.consent-flow>div{display:grid;grid-template-columns:34px 1fr;gap:3px 15px;padding:20px}.consent-flow .circle{grid-row:1/3;margin:0}.consent-flow p{grid-column:2;margin-top:7px}.consent-demo{padding:20px 15px}.demo-label{font-size:8px}.demo-buttons{gap:6px}.demo-buttons button{padding:9px 10px;font-size:10px}.file-diagram{grid-template-columns:1fr;padding:20px;gap:17px}.file-link{transform:rotate(90deg);width:20px;margin:auto}.file-reader{text-align:center}.chapter-end{gap:20px;margin-top:35px}.chapter-end strong{font-size:22px}.chapter-end small{font-size:8px}.preview-note{font-size:11px}.ui-body{padding:20px}.sources{font-size:10px;line-height:2}.contents-dialog{padding:24px}.steps li{font-size:14px}.note{font-size:12px}}
@media(max-width:360px){.signature>span{display:none}.cover-title h1,.embed .cover-title h1{font-size:57px}.article-head h1{font-size:45px}.page,.embed .page{padding:0 18px}.cover-art{margin:0 -18px}.section-head h2{font-size:28px}.chapter-end strong{font-size:20px}.cover-top>span:last-child{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}@media print{.mast,.rail,.section-index,.review-link,.chapter-end,.footer{display:none}.book{display:block}.page{padding:0}body{background:white;color:black}.chapter-section{break-inside:avoid}.head-art{max-width:300px}.picture button{border:0}.article-head h1{font-size:42px}}

.complication img{width:18px;height:22px;object-fit:contain}
@media(max-width:430px){.signature>span{display:none}}
.article-head>*{min-width:0}.article-head h1{overflow-wrap:anywhere}.meta{flex-wrap:wrap}.ui-row,.ui-actions{flex-wrap:wrap}.ui-field{overflow-wrap:anywhere}.chapter-end a{min-width:0}.chapter-end strong{overflow-wrap:anywhere}

.image-tools{display:flex;gap:10px;flex-shrink:0}.image-scroll{overflow:auto;max-height:calc(95dvh - 100px);max-width:90vw;overscroll-behavior:contain}.image-scroll img{max-height:calc(95dvh - 100px);max-width:90vw;width:auto;object-fit:contain;margin:auto}.image-dialog.full-size{width:96vw}.full-size .image-scroll{width:90vw;height:calc(85dvh - 100px)}.full-size .image-scroll img{width:1400px;max-width:none;height:auto;max-height:none;object-fit:initial;margin:0}.image-scroll:focus-visible{outline:2px solid var(--green);outline-offset:-2px}@media(max-width:600px){.image-dialog header{align-items:start;gap:12px;flex-wrap:wrap}.image-dialog header>span{font-size:11px;max-width:100%}.image-scroll,.image-scroll img{max-height:calc(90dvh - 150px)}.full-size .image-scroll{height:calc(90dvh - 150px)}.full-size .image-scroll img{max-height:none}.image-dialog button{font-size:11px}.image-dialog{padding:12px}}

.setup-part{padding:48px 0 24px;margin-top:32px;border-bottom:1px solid var(--line);scroll-margin-top:22px}.setup-part h2{font-size:46px;margin:14px 0}.setup-part>p:last-child{font-size:14px;color:var(--muted);max-width:620px;line-height:1.8}.setup-part+.chapter-section{padding-top:32px}.setup-part~.chapter-section .section-head h3{font-size:36px}@media(max-width:600px){.setup-part{padding:30px 0 20px;margin-top:20px}.setup-part h2{font-size:36px}.setup-part>p:last-child{font-size:13px}.setup-part~.chapter-section .section-head h3{font-size:31px}}

/* Expert revision: direct task access and legible, action-led figures. */
.jump-steps{display:inline-flex;align-items:center;min-height:44px;margin-top:16px;font-size:13px;color:var(--green);text-decoration:underline;text-underline-offset:4px}
.part-links{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:16px;font-size:12px;color:var(--green)}.part-links a{min-height:44px;display:flex;align-items:center;text-decoration:underline;text-underline-offset:4px}
.requirements{margin:32px 0;padding:28px 0;border-bottom:1px solid var(--line)}.requirements h2{font-size:30px;margin:15px 0}.requirements dl{margin:20px 0}.requirements dl>div{display:grid;grid-template-columns:75px 1fr;gap:15px;border-top:1px solid var(--line);padding:14px 0;font-size:14px}.requirements dt{font-weight:600}.requirements dd{margin:0;color:var(--muted)}.requirements>p:last-child{font-size:14px;line-height:1.85;max-width:720px}
html[data-chapter=setup] .article-head{grid-template-columns:1fr}.setup-hero{background:var(--soft);padding:26px}.setup-hero .pair-picture{max-width:620px;margin:auto}.setup-hero figcaption{font-size:12px;color:var(--muted);text-align:center;margin-top:20px}.setup-hero svg{width:80px;height:65px;stroke:var(--green);fill:none;stroke-width:1.3}.setup-hero .setup-devices{display:flex;align-items:center;justify-content:center;gap:55px}.setup-device{text-align:center}.setup-device h3{font-size:24px;margin-top:10px}.setup-device p{font-size:12px;color:var(--muted);margin-top:7px}
.illustrated-switch{background:var(--green);color:white;border-radius:22px;padding:5px 13px;font-size:12px}.folder-picture{font-size:70px;line-height:1;color:var(--green);margin-bottom:15px}.pair-picture{display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:15px}.pair-mac,.pair-phone{padding:22px 15px;background:var(--paper);border:1px solid var(--line);text-align:center;min-width:0}.pair-mac{border-radius:8px;border-bottom:7px solid #c4cec4}.pair-phone{border-radius:24px;padding:30px 12px}.pair-picture h3{font-size:20px;margin:13px 0}.pair-code{display:block;font:26px var(--display);font-variant-numeric:tabular-nums;letter-spacing:.05em;white-space:nowrap;margin:20px 0}.pair-picture .ui-button{font-size:11px}.pair-picture .ui-kicker{font-size:9px}.sequence-arrow{display:block;text-align:center;color:var(--green);font-size:24px;margin:16px}
.recording-pictures{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding:25px;background:var(--soft)}.recording-pictures figure{min-width:0}.recording-pictures img{width:100%;height:auto;border:1px solid var(--line);border-radius:12px}.recording-pictures figcaption{font-size:13px;line-height:1.8;color:var(--muted);margin-top:15px}.recording-pictures b{display:block;color:var(--green);font-weight:500;margin-bottom:6px}
.capture-routes{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;background:var(--soft);padding:30px}.capture-options>div{display:flex;align-items:center;gap:18px;padding:14px 0;border-bottom:1px solid var(--line)}.capture-routes svg{width:65px;height:55px;fill:none;stroke:var(--green);stroke-width:1.4}.capture-options strong{font:23px var(--display);display:block}.capture-options small{font-size:12px;color:var(--muted)}.capture-options>div>span:last-child{margin-left:auto;color:var(--green)}.capture-base{text-align:center;align-self:center}.capture-base svg{margin:auto}.capture-base h3{font-size:28px}.capture-base p{font-size:13px;color:var(--muted);margin-top:8px}.capture-routes figcaption{grid-column:1/-1;font-size:13px;color:var(--muted);padding-top:18px;border-top:1px solid var(--line)}
.picture figcaption,.diagram-caption,.caption-inline{font-size:12px;line-height:1.8}.watch-pair{align-items:center}.watch-pair figcaption{font-size:12px}.route-node small{font-size:12px}.route-art>p{font-size:13px}
.preview-main{max-width:880px;margin:50px auto;padding:0 28px 70px}.preview-main h1{font-size:70px;margin:20px 0}.preview-main>.standfirst{max-width:600px;margin-bottom:32px}.preview-page .mast>.text-link{margin-left:auto;font-size:12px}
@media(max-width:600px){.requirements{padding:22px 0}.requirements dl>div{grid-template-columns:55px 1fr;font-size:13px}.requirements h2{font-size:28px}.setup-hero{padding:25px 15px}.setup-hero .setup-devices{gap:24px}.setup-hero svg{width:65px}.setup-device h3{font-size:23px}.pair-picture{grid-template-columns:1fr;max-width:265px;margin:auto}.pair-mac,.pair-phone{padding:22px 18px}.pair-phone{margin:0 16px}.pair-code{font-size:30px}.recording-pictures{grid-template-columns:1fr;padding:20px;gap:28px}.capture-routes{grid-template-columns:1fr;padding:24px 18px}.capture-options>div>span:last-child{transform:rotate(90deg)}.capture-base{padding-top:10px}.capture-routes figcaption{font-size:12px}.route-nodes{grid-template-columns:1fr;gap:12px}.route-arrow,.route-arrow:nth-child(4){display:block;transform:rotate(90deg)}.route-node{padding:5px 0}.route-node strong{margin-top:0}.route-node svg{height:45px}.route-node small{font-size:12px}.picture figcaption,.diagram-caption,.caption-inline{font-size:12px}.watch-pair figcaption{font-size:12px}.preview-main{margin:30px auto;padding:0 22px 50px}.preview-main h1{font-size:50px}.preview-page .mast{height:auto;min-height:76px;flex-wrap:wrap;padding-top:15px;padding-bottom:15px}.preview-page .mast>.text-link{min-height:44px;display:flex;align-items:center}.preview-note{font-size:13px}}

svg.folder-picture{display:block;width:74px;height:56px;fill:none;stroke:var(--green);stroke-width:1.5}

/* Original editorial art: preserve complete compositions across reader widths. */
.article-head .head-art{background:transparent}.article-head .head-art img{width:100%;height:auto;aspect-ratio:auto;object-fit:contain}.cover-art img{width:100%;height:auto;aspect-ratio:auto;object-fit:contain}.head-art.setup-picture{max-width:100%}.setup-art-caption{font-size:12px;color:var(--muted);margin-top:10px;line-height:1.8}.article-head .head-art.setup-picture img{max-height:380px;object-fit:contain}.article-head:has(.setup-picture){gap:24px}html[data-chapter=start] .article-head h1{font-size:clamp(36px,3.4vw,50px);line-height:1.14;letter-spacing:-.035em}@media(max-width:600px){html[data-chapter=start] .article-head h1{font-size:36px;line-height:1.16}.cover-art img{aspect-ratio:auto}.article-head .head-art img{height:auto;aspect-ratio:auto}.head-art.setup-picture img{max-height:none}}

/* Chapter film: local poster until the reader presses play (video.js). */
.chapter-film{margin:34px 0 46px}
.chapter-film figcaption{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 16px;font-size:11px;line-height:1.6}
.chapter-film figcaption em,.chapter-film figcaption a{font-style:normal;white-space:nowrap;color:var(--green)}
.chapter-film figcaption a{text-decoration:underline;text-underline-offset:3px}
.chapter-film figcaption a:hover{text-decoration-thickness:2px}
.film-frame{position:relative;aspect-ratio:16/9;background:var(--soft);border:1px solid var(--line);overflow:hidden}
.film-frame>button,.film-frame>a{position:relative;display:block;width:100%;height:100%;padding:0;border:0;background:none;color:inherit;text-decoration:none;cursor:pointer}
.film-frame img,.film-frame iframe{display:block;width:100%;height:100%;border:0;object-fit:cover}
.film-play{position:absolute;left:50%;top:50%;width:72px;height:72px;margin:-36px 0 0 -36px;border-radius:50%;background:var(--green);box-shadow:0 8px 28px rgba(24,44,34,.22);transition:background .2s}
.film-play::after{content:'';position:absolute;left:29px;top:23px;border-style:solid;border-width:13px 0 13px 21px;border-color:transparent transparent transparent var(--white)}
.film-frame>:hover .film-play{background:var(--accent)}
.film-frame>:focus-visible{outline:3px solid var(--accent);outline-offset:-3px}
.film-label{position:absolute;left:16px;bottom:14px;display:flex;align-items:baseline;gap:10px;padding:8px 14px;border-radius:999px;background:var(--paper);color:var(--ink);font:15px var(--display)}
.film-label small{font-size:12px;color:var(--muted)}
.film-part{display:inline-flex;align-items:center;gap:7px;min-height:34px;margin-top:14px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:var(--white);color:var(--green);font:13px var(--display);text-decoration:none;cursor:pointer}
.film-part span{font-size:9px}
.film-part:hover{border-color:var(--green)}
.film-part:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
@media(max-width:600px){.chapter-film{margin:24px 0 34px}.film-play{width:56px;height:56px;margin:-28px 0 0 -28px}.film-play::after{left:22px;top:17px;border-width:11px 0 11px 17px}.film-label{left:10px;bottom:10px;padding:6px 11px;font-size:13px}}
@media(prefers-reduced-motion:reduce){.film-play{transition:none}}
.film-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
@media print{.chapter-film,.film-part{display:none}}

/* Keep the same site destinations visible in the Guide and Blog. */
.site-nav{display:flex;align-items:center;gap:22px;flex-shrink:0;font-size:13px}
.site-nav a{display:flex;align-items:center;min-height:44px;text-decoration:none}
.site-nav a:hover,.site-nav a[aria-current=page]{text-decoration:underline;text-underline-offset:5px}
.site-nav a:focus-visible{outline:2px solid var(--ink);outline-offset:4px}
@media(max-width:700px){
 html:has(.guide-reader){scroll-padding-top:128px}
 .guide-reader .mast{display:grid;grid-template-columns:minmax(0,1fr) auto;height:auto;min-height:108px;padding:8px 16px;gap:4px 12px}
 .guide-reader .signature{grid-column:1;grid-row:1}
 .guide-reader .signature img{width:89px}
 .guide-reader .signature>span{display:none}
 .guide-reader .site-nav{grid-column:2;grid-row:1;gap:18px;font-size:12px}
 .guide-reader .mast #location{display:block;grid-column:1;grid-row:2;margin:0;font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .guide-reader .mast #contents-open{grid-column:2;grid-row:2;justify-self:end;margin:0}
}
@media print{.guide-reader .mast{display:none}}
