:root{--ink:#171c1a;--paper:#f6f4ec;--lime:#d7f25a;--muted:#565c56;--line:#bec0b5;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0}a{color:inherit;text-underline-offset:5px}button,a{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--ink);outline-offset:5px}img{max-width:100%;display:block}svg{display:block}::selection{background:var(--lime);color:var(--ink)}
.shell{width:min(1320px,calc(100% - 80px));margin-inline:auto}.skip{position:absolute;left:20px;top:-100px;background:var(--lime);padding:16px;z-index:20}.skip:focus{top:12px}
.site-header{min-height:105px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-bottom:1px solid var(--ink)}.brand{display:inline-flex;align-items:center;text-decoration:none;flex-shrink:0}.brand img{width:255px;height:56px;object-fit:contain}.nav{display:flex;align-items:center;gap:28px;font-size:16px}.nav a{text-decoration:none;min-height:44px;display:inline-flex;align-items:center}.nav a:hover{text-decoration:underline}.socials{display:flex;gap:18px;align-items:center}.socials a{display:flex;align-items:center;justify-content:center;min-width:38px;min-height:44px;text-decoration:none}.socials svg{width:21px;height:21px;fill:currentColor}.header-socials{padding-left:22px;border-left:1px solid var(--line)}
.intro{display:grid;grid-template-columns:1.65fr 1fr;align-items:center;gap:56px;padding-block:54px 48px}h1{font-size:clamp(62px,7.9vw,112px);font-weight:800;line-height:.94;letter-spacing:-.065em;margin:0;max-width:850px}.intro-text{font-size:clamp(23px,2.5vw,34px);line-height:1.28;letter-spacing:-.04em;font-weight:500;border-left:1px solid var(--line);padding-left:42px;margin:0}.intro-text span{display:block}
.featured{display:grid;grid-template-columns:1.12fr 1fr;border:1px solid var(--ink);scroll-margin-top:20px}.product-photo{margin:0;min-width:0;overflow:hidden;background:#e1dfd2;position:relative;display:flex}.product-photo img{width:100%;height:100%;object-fit:cover;object-position:52% 50%;min-height:600px}.product-copy{padding:42px 46px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}.index{font-family:'Courier New',monospace;text-transform:uppercase;font-size:13px;letter-spacing:.08em;margin:0 0 26px}h2{margin:0;font-size:clamp(50px,5.5vw,77px);line-height:.98;font-weight:800;letter-spacing:-.055em}.product-name{font-size:23px;line-height:1.2;letter-spacing:-.04em;margin:29px 0 0;font-weight:700}.model{font-size:14px;color:var(--muted);margin:8px 0 0}.summary{font-size:20px;line-height:1.45;letter-spacing:-.015em;max-width:440px;margin:28px 0 30px}.retailers{width:100%;display:flex;gap:12px;flex-wrap:wrap}.cta{min-height:62px;padding:17px 23px;display:flex;align-items:center;justify-content:space-between;gap:20px;background:var(--lime);border:1px solid var(--ink);font-size:22px;line-height:1.25;font-weight:700;text-decoration:none;width:100%;transition:background .15s,transform .15s}.cta:hover{background:#cde94f;transform:translateY(-2px)}.cta svg{width:26px;height:26px;flex-shrink:0}.why-link{font-size:17px;font-weight:600;margin-top:22px;min-height:44px;display:inline-flex;align-items:center}.link-note{font-size:12px;line-height:1.5;color:var(--muted);margin:10px 0 0}
.reasons{padding:46px 0 52px;border-bottom:1px solid var(--ink)}.section-title{font-size:clamp(34px,4.5vw,57px);letter-spacing:-.055em;line-height:1.04}.reason-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:35px}.reason{padding-right:35px}.reason+.reason{padding-left:35px;border-left:1px solid var(--line)}.reason h3{font-size:23px;line-height:1.15;letter-spacing:-.035em;margin:0 0 14px}.reason p{font-size:17px;line-height:1.55;color:var(--muted);margin:0}
.approach{padding:48px 0 60px;display:grid;grid-template-columns:1.1fr 1fr;gap:70px;align-items:start}.approach h2{font-size:clamp(34px,4.4vw,57px)}.approach p{margin:0;font-size:19px;line-height:1.6;color:var(--muted)}.approach p+p{margin-top:12px}.more-products{padding:48px 0;border-bottom:1px solid var(--line)}.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;margin-top:30px}.product-grid h3{font-size:24px}.product-grid img{width:100%;aspect-ratio:1;object-fit:cover}.product-grid .cta{font-size:17px}
.site-footer{background:var(--ink);color:var(--paper);padding:38px 0 22px}.footer-top{display:flex;justify-content:space-between;gap:40px;align-items:center;padding-bottom:30px}.footer-brand img{width:270px;height:auto}.footer-tagline{margin:8px 0 0 63px;font-size:17px}.footer-socials{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.footer-socials a{display:flex;flex-direction:column;gap:10px;font-size:13px;min-width:50px}.footer-bottom{padding-top:23px;border-top:1px solid #62685e;display:flex;justify-content:space-between;gap:30px}.disclosure{font-size:12px;line-height:1.65;max-width:650px;margin:0;color:#d2d5cd}.footer-links{display:flex;align-items:flex-start;gap:20px;flex-wrap:wrap;font-size:12px}.footer-links a{min-height:32px}.legal{max-width:780px;padding:60px 0 90px;min-height:65vh}.legal h1{font-size:58px;line-height:1.02;margin-bottom:36px}.legal h2{font-size:27px;letter-spacing:-.03em;margin:28px 0 12px}.legal p,.legal li{font-size:18px;line-height:1.7;color:var(--muted)}
@media(min-width:1500px){.intro{padding-top:64px}.product-photo img{min-height:660px}}
@media(max-width:1000px){.shell{width:calc(100% - 48px)}.header-socials{display:none}.brand img{width:220px}.intro{gap:28px}.intro-text{padding-left:25px}.product-copy{padding:30px}.product-photo img{min-height:540px}.product-name{font-size:21px}.summary{font-size:18px}.cta{font-size:20px}.reason{padding-right:24px}.reason+.reason{padding-left:24px}.approach{gap:35px}.footer-top{gap:20px}.footer-socials{gap:8px}}
@media(max-width:640px){html{scroll-padding-top:18px}.shell{width:calc(100% - 36px)}.site-header{min-height:82px;gap:12px}.brand img{width:177px;height:44px}.nav{gap:17px;font-size:13px}.nav .approach-nav{display:none}.intro{display:block;padding:32px 0 30px}h1{font-size:clamp(54px,12.9vw,80px);line-height:.96;letter-spacing:-.06em;max-width:490px}.intro-text{padding:0;border:0;font-size:18px;line-height:1.45;letter-spacing:-.02em;margin-top:21px;max-width:320px}.intro-text span{display:inline}.intro-text span+span:before{content:' '}.featured{display:flex;flex-direction:column}.product-photo img{min-height:0;height:auto;aspect-ratio:1.15;object-fit:cover;object-position:50% 65%}.product-copy{padding:26px 23px 25px}.index{font-size:12px;margin-bottom:18px}.product-copy h2{font-size:51px;max-width:300px;line-height:.97}.product-name{font-size:21px;margin-top:23px}.model{font-size:13px}.summary{font-size:18px;line-height:1.5;margin:20px 0 23px}.cta{font-size:20px;min-height:60px;padding:16px 19px}.why-link{font-size:16px;margin-top:14px}.link-note{margin:2px 0 0}.reasons{padding:35px 0 36px}.section-title{font-size:37px;line-height:1.05}.reason-grid{grid-template-columns:1fr;margin-top:25px;gap:23px}.reason,.reason+.reason{padding:0;border:0}.reason+.reason{padding-top:22px;border-top:1px solid var(--line)}.reason h3{font-size:22px;margin-bottom:10px}.reason p{font-size:17px;line-height:1.55}.approach{display:block;padding:36px 0 42px}.approach h2{font-size:37px;max-width:330px;margin-bottom:23px}.approach p{font-size:17px}.footer-top{display:block;padding-bottom:26px}.footer-brand img{width:230px}.footer-tagline{margin-left:54px;font-size:15px}.footer-socials{margin-top:27px;display:flex;justify-content:space-between;gap:12px}.footer-bottom{display:block;padding-top:20px}.footer-links{margin-top:20px;gap:22px}.disclosure{font-size:12px}.product-grid{grid-template-columns:1fr}.legal{padding:38px 0 60px}.legal h1{font-size:43px}.legal p,.legal li{font-size:17px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.cta{transition:none}.cta:hover{transform:none}}
@media(max-width:360px){.product-copy h2{font-size:41px}.cta{font-size:18px;gap:12px}.product-copy{padding-inline:20px}.brand img{width:167px}}

/* Product notebook and reading pages extend the existing editorial brand. */
.library-intro{display:grid;grid-template-columns:1.35fr 1fr;gap:70px;align-items:end;padding:64px 0 50px;border-bottom:1px solid var(--ink)}.library-intro h1{font-size:clamp(57px,6.5vw,92px)}.library-intro p{font-size:21px;line-height:1.5;letter-spacing:-.02em;margin:0}.research-note,.library-intro .research-note{font-size:13px;line-height:1.65;color:var(--muted);letter-spacing:0;margin-top:16px}.guide-collection{padding:40px 0 55px}.collection-heading{display:flex;justify-content:space-between;align-items:center;gap:25px}.collection-heading h2{font-size:37px;line-height:1.1}.collection-heading>span{color:var(--muted);font-size:14px;flex-shrink:0}.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:60px;row-gap:0}.guide-card{padding:34px 0;border-bottom:1px solid var(--line);display:flex;flex-direction:column;align-items:flex-start;min-width:0}.guide-index{font-family:'Courier New',monospace;font-size:12px;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);margin:0 0 16px}.guide-card h3{font-size:29px;line-height:1.15;letter-spacing:-.035em;margin:0 0 14px}.guide-card h3 a{text-decoration:none}.guide-card h3 a:hover{text-decoration:underline;text-decoration-thickness:1px}.guide-card>p:not(.guide-index){font-size:17px;line-height:1.6;color:var(--muted);margin:0 0 18px;max-width:510px}.read-guide{font-size:15px;font-weight:700;display:inline-flex;align-items:center;gap:12px;min-height:44px;margin-top:auto;text-decoration:none}.read-guide svg,.library-method svg{width:22px;height:22px}.read-guide:hover{text-decoration:underline}.library-method{padding:35px 0 55px;border-top:1px solid var(--ink);max-width:820px}.library-method h2{font-size:37px}.library-method p{font-size:18px;line-height:1.7;color:var(--muted)}.library-method>a{display:inline-flex;align-items:center;gap:15px;min-height:44px;font-size:16px;font-weight:700}.home-guides{border-top:1px solid var(--ink);padding:48px 0}.home-guides .collection-heading{margin-bottom:8px}.home-guides .collection-heading>a{font-size:15px;min-height:44px;display:flex;align-items:center;gap:12px}.home-guides .collection-heading>a svg{width:21px;height:21px}.home-guides .guide-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}.home-guides .guide-card h3{font-size:25px}.home-guides .guide-card{border-bottom:0;padding-bottom:0}
.article-header{padding:38px 0 36px;border-bottom:1px solid var(--ink)}.back-link{display:inline-flex;gap:10px;align-items:center;min-height:44px;font-size:14px;text-decoration:none;margin-bottom:25px}.back-link svg{width:20px;height:20px;transform:rotate(180deg)}.article-header h1{font-size:clamp(44px,5.4vw,75px);line-height:1.02;letter-spacing:-.055em;max-width:1080px}.article-deck{font-size:23px;line-height:1.45;color:var(--muted);max-width:820px;margin:25px 0}.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:13px;line-height:1.5;color:var(--muted)}.article-layout{display:grid;grid-template-columns:240px minmax(0,760px);gap:70px;padding-top:38px;justify-content:space-between}.article-sidebar{align-self:start;position:sticky;top:25px}.article-contents{border-block:1px solid var(--line);padding:16px 0}.article-contents summary{font-size:16px;font-weight:700;cursor:pointer;min-height:30px}.article-contents nav{display:flex;flex-direction:column;gap:13px;margin-top:16px}.article-contents nav a{font-size:14px;line-height:1.4;padding-block:4px}.article-model{font-size:14px;line-height:1.6;color:var(--muted);margin-top:25px;overflow-wrap:anywhere}.article-model strong{display:block;color:var(--ink);margin-bottom:8px}.article-body{min-width:0}.article-body section{scroll-margin-top:28px;padding-top:30px}.article-body h2{font-size:30px;line-height:1.15;letter-spacing:-.03em;margin:0 0 18px}.article-body p,.article-body li{font-size:19px;line-height:1.75;color:#3e453f;margin:0 0 22px}.editorial-take{padding:25px 28px;border-left:4px solid var(--lime);background:#eeede3;margin-bottom:8px}.editorial-take h2{font-size:20px;margin-bottom:12px}.editorial-take p{font-size:19px;line-height:1.6;margin-bottom:12px}.editorial-take .research-note,.article-body .research-note{font-size:13px;line-height:1.65;color:var(--muted);margin-bottom:0}.article-sources{margin-top:26px;border-top:1px solid var(--line)}.article-sources>p:first-of-type{font-size:16px;line-height:1.7}.article-sources ul{padding-left:23px}.article-sources li{font-size:16px;line-height:1.6;overflow-wrap:anywhere;margin-bottom:12px}.article-shop-links{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 18px}.article-shop-link{display:inline-flex;align-items:center;gap:18px;border:1px solid var(--ink);background:var(--lime);padding:15px 20px;min-height:55px;font-size:17px;font-weight:700;text-decoration:none}.article-shop-link svg{width:22px;height:22px}.article-shop-link:hover{background:#cde94f}.related-guides{margin:60px 0 50px;padding-top:35px;border-top:1px solid var(--ink)}.related-guides>.section-title{font-size:38px}.text-page{padding-bottom:60px}.text-page .article-body{max-width:780px;margin:0 auto}.text-page .article-header{margin-bottom:18px}.text-page .article-header h1{font-size:clamp(45px,6vw,80px)}
@media(max-width:1000px){.article-layout{grid-template-columns:195px minmax(0,1fr);gap:35px}.guide-grid{column-gap:35px}.home-guides .guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-guides .guide-card:last-child{grid-column:1/-1}.library-intro{gap:35px}.guide-card h3{font-size:26px}}
@media(max-width:640px){.nav{gap:14px}.library-intro{display:block;padding:34px 0 30px}.library-intro h1{font-size:53px;line-height:1}.library-intro>div{margin-top:23px}.library-intro p{font-size:18px}.library-intro .research-note{font-size:13px}.guide-collection{padding:28px 0 35px}.collection-heading{display:block}.collection-heading h2{font-size:31px}.collection-heading>span{display:block;margin-top:12px}.guide-grid,.home-guides .guide-grid{grid-template-columns:1fr;gap:0}.guide-card{padding:27px 0}.guide-card h3,.home-guides .guide-card h3{font-size:27px}.guide-card>p:not(.guide-index){font-size:17px}.guide-index{font-size:12px;margin-bottom:12px}.library-method{padding:29px 0 38px}.library-method h2{font-size:31px}.library-method p{font-size:17px}.home-guides{padding:32px 0}.home-guides .collection-heading>a{margin-top:10px}.home-guides .guide-card{padding-bottom:24px;border-bottom:1px solid var(--line)}.home-guides .guide-card:last-child{border-bottom:0;grid-column:auto}.article-header{padding:22px 0 25px}.back-link{margin-bottom:20px}.article-header h1{font-size:43px;letter-spacing:-.05em;line-height:1.06;overflow-wrap:break-word}.article-deck{font-size:20px;line-height:1.5;margin:22px 0}.article-meta{font-size:12px;gap:9px}.article-layout{display:flex;flex-direction:column;padding-top:23px;gap:23px}.article-sidebar{position:static;width:100%}.article-model{font-size:13px;margin:15px 0 0}.article-model strong{display:inline;margin-right:8px}.article-contents{padding:12px 0}.article-contents nav{gap:8px}.article-contents nav a{min-height:36px}.article-body h2{font-size:27px}.article-body p{font-size:18px;line-height:1.75}.article-body section{padding-top:25px}.editorial-take{padding:19px 20px}.editorial-take h2{font-size:19px}.editorial-take p{font-size:17px;line-height:1.65}.article-shop-links{display:block}.article-shop-link{display:flex;justify-content:space-between;margin-top:12px;font-size:16px}.related-guides{margin:40px 0 30px;padding-top:27px}.related-guides>.section-title{font-size:31px}.text-page .article-header h1{font-size:44px}.text-page{padding-bottom:40px}}
@media(max-width:360px){.brand img{width:150px}.nav{gap:12px}.article-header h1{font-size:38px}.library-intro h1{font-size:45px}}