/* Dedicated STUDIO 3 body. No host hero, history, gallery or gesture selectors. */
@font-face{font-family:S3Inter;src:url('assets/studio-book/fonts/Inter-Regular.woff2') format('woff2');font-style:normal;font-weight:400;font-display:swap}
@font-face{font-family:S3Inter;src:url('assets/studio-book/fonts/Inter-Medium.woff2') format('woff2');font-style:normal;font-weight:500;font-display:swap}
@font-face{font-family:S3Inter;src:url('assets/studio-book/fonts/Inter-SemiBold.woff2') format('woff2');font-style:normal;font-weight:600;font-display:swap}
.s3-book{--s3-ink:#232b35;--s3-red:#d92d3a;--s3-paper:#f5f4f0;--s3-line:#232b352a;--s3-muted:#596471;font-family:S3Inter,Arial,sans-serif;color:var(--s3-ink);background:var(--s3-paper);font-size:16px;line-height:1.55;overflow-wrap:break-word}
.s3-book *{box-sizing:border-box}
.s3-book .s3-copy{font-size:16px;line-height:1.62;margin:0 0 1em}
.s3-book .s3-note{font-size:13px;line-height:1.65;color:var(--s3-muted);margin:24px 0 0;max-width:920px}
.s3-book .s3-eyebrow{display:block;font-size:10px;font-weight:500;letter-spacing:.11em;line-height:1.5;text-transform:uppercase}
.s3-book .s3-label{display:inline-block;font-size:11px;font-weight:500;padding:6px 10px;border:1px solid var(--s3-line);border-radius:20px;margin-bottom:20px}
.s3-book .s3-card-title{font-size:23px;font-weight:500;line-height:1.2;letter-spacing:-.025em;margin:0 0 14px}
.s3-book .s3-number{font-size:13px;font-weight:500;color:var(--s3-red)}
.s3-book .s3-nav{display:flex;flex-wrap:wrap;padding:15px 4.5vw;background:#fff;border-bottom:1px solid var(--s3-line);gap:0 24px}
.s3-book .s3-nav-link{display:flex;align-items:center;gap:9px;min-height:44px;color:inherit;text-decoration:none;font-size:12px}
.s3-book .s3-nav-link:hover{text-decoration:underline;text-underline-offset:5px}
.s3-book .s3-nav-number{font-size:10px;color:#737c85}
.s3-book .s3-edition{display:grid;grid-template-columns:1fr 1.2fr;gap:8vw;padding:30px 4.5vw;border-bottom:1px solid var(--s3-line)}
.s3-book .s3-edition-copy{font-size:13px;color:var(--s3-muted);margin:0;max-width:680px}
.s3-book .s3-chapter{padding:92px 4.5vw;border-bottom:1px solid var(--s3-line);scroll-margin-top:90px}
.s3-book .s3-chapter-head{display:grid;grid-template-columns:1fr 1.2fr;gap:8vw;align-items:start;margin-bottom:52px}
.s3-book .s3-chapter-head h3{font-size:clamp(42px,5.3vw,80px);font-weight:500;line-height:1;letter-spacing:-.055em;margin:24px 0 0;max-width:650px}
.s3-book .s3-intro{padding-top:39px;max-width:660px}
.s3-book .s3-intro .s3-copy{font-size:19px;line-height:1.55}
.s3-book .s3-crop{position:relative;display:block;overflow:hidden;width:100%;background:transparent;flex-shrink:0}
.s3-book .s3-crop img{position:absolute;display:block;max-width:none!important;min-width:0!important;max-height:none!important;min-height:0!important;object-fit:fill!important;transform:none;mix-blend-mode:normal;margin:0;padding:0;border:0}
.s3-book .s3-anatomy-board{display:grid;grid-template-columns:1fr 1fr;background:#fff;gap:7%;padding:54px;align-items:center;border-top:4px solid var(--s3-red)}
.s3-book .s3-anatomy-mark{position:relative;padding:4% 8%;min-width:0}
.s3-book .s3-pin{position:absolute;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--s3-red);color:#fff;font-size:13px;box-shadow:0 0 0 6px #fff}
.s3-book .s3-pin-one{top:25%;right:10%}
.s3-book .s3-pin-two{top:48%;left:28%}
.s3-book .s3-anatomy-list{list-style:none;margin:0;padding:0;display:grid;gap:30px}
.s3-book .s3-anatomy-item{display:grid;grid-template-columns:28px 1fr;gap:18px;padding-top:22px;border-top:1px solid var(--s3-line)}
.s3-book .s3-anatomy-item .s3-copy{font-size:14px;color:var(--s3-muted);margin-bottom:12px}
.s3-book .s3-anatomy-wordmark{max-width:320px;margin-top:22px}
.s3-book .s3-signature-grid{display:grid;grid-template-columns:1fr 1fr .8fr;gap:2px;background:var(--s3-line);border:1px solid var(--s3-line)}
.s3-book .s3-signature-card{background:#fff;margin:0;padding:28px;display:flex;flex-direction:column;justify-content:space-between;min-width:0}
.s3-book .s3-signature-stage{display:grid;place-items:center;min-height:390px;padding:20px 6%;flex:1}
.s3-book .s3-signature-stage .s3-crop{max-width:260px}
.s3-book .s3-signature-compact .s3-crop{max-width:170px}
.s3-book .s3-caption{display:block;border-top:1px solid var(--s3-line);padding-top:22px;margin-top:28px}
.s3-book .s3-caption-title{display:block;font-weight:500;font-size:15px;line-height:1.4;margin:0 0 9px}
.s3-book .s3-caption-text{display:block;font-size:13px;line-height:1.6;color:var(--s3-muted)}
.s3-book .s3-rule-strip{display:grid;grid-template-columns:.7fr 1.3fr;gap:30px;border-block:1px solid var(--s3-line);margin-top:30px;padding:28px 0}
.s3-book .s3-rule-strip .s3-copy{margin:0;max-width:720px}
.s3-book .s3-version-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.s3-book .s3-version-card{margin:0;min-width:0}
.s3-book .s3-version-art{padding:30px 20px;min-height:300px;display:grid;place-items:center;border:1px solid var(--s3-line)}
.s3-book .s3-version-light{background:#fff}
.s3-book .s3-version-dark{background:#232b35}
.s3-book .s3-version-art .s3-crop{width:100%;max-width:220px}
.s3-book .s3-version-card .s3-caption{border:0;margin-top:0;padding-top:24px}
.s3-book .s3-version-card .s3-card-title{font-size:19px;margin-top:12px}
.s3-book .s3-version-card .s3-copy{font-size:13px;color:var(--s3-muted)}
.s3-book .s3-palette{display:grid;grid-template-columns:1.2fr 1fr .8fr;min-height:310px}
.s3-book .s3-swatch{display:flex;flex-direction:column;justify-content:space-between;gap:15px;padding:30px;border:1px solid #232b3515}
.s3-book .s3-swatch-graphite{background:#232b35;color:white}
.s3-book .s3-swatch-red{background:#d92d3a;color:white}
.s3-book .s3-swatch-white{background:#fff;color:#232b35}
.s3-book .s3-hex{display:block;font-size:clamp(25px,3.5vw,52px);font-weight:500;letter-spacing:-.045em;margin-top:100px;white-space:nowrap}
.s3-book .s3-rgb{font-size:11px;letter-spacing:.02em}
.s3-book .s3-three-notes{display:grid;grid-template-columns:1.2fr 1fr .8fr;gap:35px;margin-top:28px}
.s3-book .s3-role .s3-card-title{font-size:18px}
.s3-book .s3-role .s3-copy{font-size:14px;color:var(--s3-muted)}
.s3-book .s3-type-grid{display:grid;grid-template-columns:1fr 1fr;background:#fff}
.s3-book .s3-type-specimen{background:#232b35;color:#fff;padding:48px}
.s3-book .s3-inter-name{font-size:clamp(80px,10vw,155px);font-weight:400;line-height:1.2;letter-spacing:-.07em;margin:34px 0}
.s3-book .s3-weight{display:flex;justify-content:space-between;gap:20px;font-size:25px;margin:10px 0}
.s3-book .s3-weight-regular{font-weight:400}.s3-book .s3-weight-medium{font-weight:500}.s3-book .s3-weight-semibold{font-weight:600}
.s3-book .s3-weight-number{font-size:14px;align-self:center;opacity:.65}
.s3-book .s3-type-alphabet{font-size:16px;line-height:1.8;letter-spacing:.02em;color:#bfc7d0;margin:36px 0 0}
.s3-book .s3-type-usage{padding:48px}
.s3-book .s3-specimen-heading{font-size:clamp(30px,4vw,58px);font-weight:600;line-height:1.1;letter-spacing:-.045em;margin:25px 0 35px}
.s3-book .s3-type-usage>.s3-copy{margin:18px 0 0}
.s3-book .s3-fixed-lettering{border-top:1px solid var(--s3-line);margin-top:36px;padding-top:28px}
.s3-book .s3-fixed-lettering .s3-crop{max-width:360px;margin-top:28px}
.s3-book .s3-space-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;padding:45px;background:#e6e7e5;align-items:start}
.s3-book .s3-space-card{margin:0;min-width:0}
.s3-book .s3-space-frame{position:relative;border:1px dashed #66717b;background:#eef0f1;max-width:410px;margin:auto;background-image:linear-gradient(#232b3507 1px,transparent 1px),linear-gradient(90deg,#232b3507 1px,transparent 1px);background-size:20px 20px}
.s3-book .s3-space-frame-full{aspect-ratio:956.5/1187.5}
.s3-book .s3-space-frame-symbol{aspect-ratio:769.5/874.5}
.s3-book .s3-space-art{position:absolute;background:white;outline:1px solid #232b3526}
.s3-book .s3-space-art-full{left:13.4083%;top:10.8%;width:73.1835%}
.s3-book .s3-space-art-symbol{left:16.6667%;top:14.6655%;width:66.6667%}
.s3-book .s3-space-x{position:absolute;font-size:15px;color:#d92d3a;font-weight:600;line-height:1}
.s3-book .s3-space-x-top{left:50%;top:4%;transform:translateX(-50%)}
.s3-book .s3-space-x-bottom{left:50%;bottom:4%;transform:translateX(-50%)}
.s3-book .s3-space-x-left{left:5%;top:50%;transform:translateY(-50%)}
.s3-book .s3-space-x-right{right:5%;top:50%;transform:translateY(-50%)}
.s3-book .s3-formula{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:28px 0;border-bottom:1px solid var(--s3-line)}
.s3-book .s3-formula-main{font-size:clamp(23px,3.5vw,43px);font-weight:500;letter-spacing:-.04em}
.s3-book .s3-formula-note{font-size:13px;max-width:250px;color:var(--s3-muted)}
.s3-book .s3-size-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.s3-book .s3-size-card{background:#fff;padding:28px;min-width:0;border-top:3px solid #232b35}
.s3-book .s3-size-number{font-size:clamp(64px,7vw,105px);letter-spacing:-.06em;font-weight:500;line-height:1.1;margin:24px 0 0}
.s3-book .s3-size-unit{font-size:.4em;letter-spacing:-.02em}
.s3-book .s3-print-size{font-size:15px;margin:8px 0 20px;color:var(--s3-muted)}
.s3-book .s3-size-stage{display:flex;align-items:center;justify-content:safe center;min-height:485px;max-width:100%;overflow:auto;padding:12px 0;border-block:1px solid var(--s3-line)}
.s3-book .s3-size-sample{flex:none;max-width:none;margin:auto}
.s3-book .s3-size-stage-symbol{background:#fafafa}
.s3-book .s3-range-row{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:22px}
.s3-book .s3-range-label{font-size:12px}.s3-book .s3-range-value{font-size:12px;font-weight:500;white-space:nowrap}
.s3-book .s3-range{display:block;width:100%;height:44px;min-height:44px;margin:6px 0 0;accent-color:#d92d3a;cursor:pointer;touch-action:pan-x}
.s3-book .s3-misuse-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:35px 24px}
.s3-book .s3-misuse-card{margin:0;min-width:0}
.s3-book .s3-misuse-caption{display:grid;grid-template-columns:20px 1fr;gap:10px;margin-top:22px}
.s3-book .s3-misuse-number{font-size:24px;line-height:1;color:var(--s3-red)}
.s3-book .s3-misuse-caption .s3-card-title{font-size:18px}
.s3-book .s3-misuse-caption .s3-copy{font-size:13px;color:var(--s3-muted)}
.s3-book .s3-app-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:start}
.s3-book .s3-app-card{margin:0;min-width:0}
.s3-book .s3-app-web{background:#fff;padding:36px;min-height:510px;display:grid;grid-template-columns:.8fr 1fr;gap:42px;align-items:center;border-top:5px solid #d92d3a}
.s3-book .s3-app-logo{padding:18px 0}
.s3-book .s3-app-heading{font-size:clamp(29px,3vw,44px);font-weight:500;line-height:1.06;letter-spacing:-.04em;margin:24px 0 32px}
.s3-book .s3-app-steps{list-style:none;margin:0;padding:0}
.s3-book .s3-app-step{border-top:1px solid var(--s3-line);padding:15px 0;font-size:13px;display:flex;gap:15px}
.s3-book .s3-step-number{font-size:10px;color:var(--s3-red);align-self:center}
.s3-book .s3-app-reminder{background:#fff;padding:36px;min-height:510px;border-top:5px solid #232b35}
.s3-book .s3-app-reminder-top{display:flex;justify-content:space-between;gap:24px;align-items:flex-start}
.s3-book .s3-app-symbol{width:60px;flex:none}
.s3-book .s3-reminder-heading{font-size:clamp(48px,5vw,72px);font-weight:500;line-height:1;letter-spacing:-.05em;margin:40px 0}
.s3-book .s3-app-fields{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.s3-book .s3-app-field{border-top:1px solid var(--s3-line);padding-top:14px;min-width:0}
.s3-book .s3-placeholder{display:block;color:var(--s3-muted);font-size:14px;margin-top:12px}
.s3-book .s3-chapter-production{background:#232b35;color:white;--s3-line:#ffffff33;--s3-muted:#c3cbd4}
.s3-book .s3-production-grid{display:grid;grid-template-columns:1fr 1fr;gap:45px 65px}
.s3-book .s3-production-item{border-top:1px solid var(--s3-line);padding-top:26px}
.s3-book .s3-production-item .s3-number{color:#ff6973}
.s3-book .s3-production-item .s3-card-title{font-size:28px;margin-top:18px}
.s3-book .s3-production-item .s3-copy{color:#c3cbd4;max-width:520px}
.s3-book .s3-source-notes{margin-top:46px;border-block:1px solid var(--s3-line)}
.s3-book .s3-summary{cursor:pointer;padding:22px 0;min-height:64px;font-size:15px;list-style-position:inside}
.s3-book .s3-source-content{padding:10px 0 26px;max-width:900px}
.s3-book .s3-source-content .s3-copy{font-size:14px;color:#c3cbd4}
.s3-book .s3-footer{display:flex;align-items:center;justify-content:space-between;gap:30px;padding-top:60px}
.s3-book .s3-footer-copy{font-size:clamp(35px,5vw,62px);line-height:1.03;letter-spacing:-.045em;margin:24px 0 0}
.s3-book .s3-return{font:500 13px S3Inter,Arial,sans-serif;color:#232b35;background:#fff;border:0;min-height:54px;border-radius:30px;padding:18px 24px;cursor:pointer;white-space:nowrap}
.s3-book .s3-return-arrow{margin-left:20px;font-size:18px}
.s3-book :focus-visible{outline:2px solid #d92d3a;outline-offset:5px}
.s3-book .s3-chapter-production :focus-visible{outline-color:#fff}
@media(max-width:1000px){
 .s3-book .s3-anatomy-board{padding:35px;gap:5%}
 .s3-book .s3-signature-grid{grid-template-columns:1fr 1fr}
 .s3-book .s3-signature-compact{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr;gap:35px;align-items:center}
 .s3-book .s3-signature-compact .s3-signature-stage{min-height:250px}
 .s3-book .s3-signature-compact .s3-caption{border:0;margin:0}
 .s3-book .s3-version-grid{grid-template-columns:1fr 1fr;gap:35px 24px}
 .s3-book .s3-version-art{min-height:350px}
 .s3-book .s3-type-specimen,.s3-book .s3-type-usage{padding:34px}
 .s3-book .s3-app-grid{grid-template-columns:1fr 1fr}
 .s3-book .s3-app-web{grid-template-columns:1fr;gap:24px;min-height:620px}
 .s3-book .s3-app-logo{width:120px;justify-self:center;padding:0}
 .s3-book .s3-app-reminder{min-height:620px}
 .s3-book .s3-space-grid{padding:30px;gap:30px}
 .s3-book .s3-size-card{padding:22px 12px}
}
@media(max-width:700px){
 .s3-book .s3-nav{padding:14px 20px;gap:0 18px}
 .s3-book .s3-nav-link{font-size:12px;min-height:44px;gap:7px}
 .s3-book .s3-edition{grid-template-columns:1fr;gap:12px;padding:24px 20px}
 .s3-book .s3-chapter{padding:60px 20px;scroll-margin-top:80px}
 .s3-book .s3-chapter-head{grid-template-columns:1fr;gap:24px;margin-bottom:34px}
 .s3-book .s3-chapter-head h3{font-size:clamp(38px,10.8vw,58px);letter-spacing:-.05em;margin-top:18px}
 .s3-book .s3-intro{padding:0}.s3-book .s3-intro .s3-copy{font-size:17px}
 .s3-book .s3-note{font-size:12px}
 .s3-book .s3-anatomy-board{grid-template-columns:1fr;gap:35px;padding:28px 24px}
 .s3-book .s3-anatomy-mark{width:100%;max-width:360px;margin:auto;padding:4% 10%}
 .s3-book .s3-anatomy-list{gap:20px}.s3-book .s3-anatomy-item{gap:12px}
 .s3-book .s3-signature-grid{grid-template-columns:1fr}
 .s3-book .s3-signature-card{padding:24px}
 .s3-book .s3-signature-stage{min-height:350px;padding:15px 12%}
 .s3-book .s3-signature-compact{grid-column:auto;display:flex}
 .s3-book .s3-signature-compact .s3-signature-stage{min-height:260px;width:100%}
 .s3-book .s3-signature-compact .s3-caption{border-top:1px solid var(--s3-line);margin-top:20px}
 .s3-book .s3-rule-strip{grid-template-columns:1fr;gap:14px;padding:24px 0}
 .s3-book .s3-version-grid{gap:28px 14px}
 .s3-book .s3-version-art{padding:22px 13px;min-height:0}
 .s3-book .s3-version-card .s3-card-title{font-size:16px;line-height:1.3}
 .s3-book .s3-version-card .s3-copy{font-size:12px}
 .s3-book .s3-palette{grid-template-columns:1fr;min-height:0}
 .s3-book .s3-swatch{padding:25px;min-height:210px}
 .s3-book .s3-hex{font-size:42px;margin-top:40px}
 .s3-book .s3-three-notes{grid-template-columns:1fr;gap:14px}
 .s3-book .s3-role{border-top:1px solid var(--s3-line);padding-top:18px}
 .s3-book .s3-type-grid{grid-template-columns:1fr}
 .s3-book .s3-type-specimen,.s3-book .s3-type-usage{padding:30px 24px}
 .s3-book .s3-inter-name{font-size:115px;margin:25px 0}
 .s3-book .s3-weight{font-size:24px}.s3-book .s3-specimen-heading{font-size:clamp(29px,8.8vw,42px)}
 .s3-book .s3-space-grid{grid-template-columns:1fr;padding:28px 20px;gap:38px}
 .s3-book .s3-space-frame{max-width:340px}
 .s3-book .s3-formula{flex-direction:column;align-items:flex-start;gap:12px}
 .s3-book .s3-formula-main{font-size:25px}.s3-book .s3-formula-note{max-width:none}
 .s3-book .s3-size-grid{grid-template-columns:1fr;gap:26px}
 .s3-book .s3-size-card{padding:24px 12px}.s3-book .s3-size-number{font-size:80px}
 .s3-book .s3-size-stage{min-height:460px}.s3-book .s3-size-stage-symbol{min-height:240px}
 .s3-book .s3-range-row{gap:10px}.s3-book .s3-range-label{font-size:12px}
 .s3-book .s3-misuse-grid{grid-template-columns:1fr;gap:28px}
 .s3-book .s3-misuse-caption{margin-top:18px}.s3-book .s3-misuse-caption .s3-card-title{font-size:19px}
 .s3-book .s3-app-grid{grid-template-columns:1fr;gap:34px}
 .s3-book .s3-app-web{padding:30px 24px;min-height:0;grid-template-columns:1fr;gap:32px}
 .s3-book .s3-app-logo{width:150px}.s3-book .s3-app-heading{font-size:38px}
 .s3-book .s3-app-reminder{padding:30px 24px;min-height:470px}
 .s3-book .s3-app-reminder-top{gap:20px}.s3-book .s3-app-symbol{width:52px}
 .s3-book .s3-reminder-heading{font-size:62px}.s3-book .s3-placeholder{font-size:12px}
 .s3-book .s3-production-grid{grid-template-columns:1fr;gap:28px}
 .s3-book .s3-production-item .s3-card-title{font-size:27px}
 .s3-book .s3-footer{flex-direction:column;align-items:flex-start;gap:35px;padding-top:40px}
 .s3-book .s3-return{white-space:normal;text-align:left;width:100%}
}
@media(prefers-reduced-motion:reduce){.s3-book{scroll-behavior:auto}}

.s3-book .s3-reference-applications{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-top:40px}.s3-book .s3-reference-applications figure{margin:0}.s3-book .s3-reference-applications img{display:block;width:100%;height:auto}.s3-book .s3-reference-applications figcaption{font-size:12px;line-height:1.5;margin-top:12px}.s3-book .s3-app-logo .s3-eyebrow{display:block;line-height:1.5;margin-top:14px;font-size:10px}@media(max-width:700px){.s3-book .s3-reference-applications{grid-template-columns:1fr}}