/* lumiere: content-only; every selector has the case prefix. */
@font-face{font-family:B4Inter_lumiere;src:url('assets/lumiere-book/fonts/Inter-Regular.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:B4Inter_lumiere;src:url('assets/lumiere-book/fonts/Inter-Medium.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:B4Inter_lumiere;src:url('assets/lumiere-book/fonts/Inter-SemiBold.woff2') format('woff2');font-weight:600;font-style:normal;font-display:swap}
.b4-lumiere-book{--b4-paper:#F7F5EF;--b4-ink:#332B20;--b4-accent:#9B6F27;--b4-line:#332B2033;font:16px/1.6 B4Inter_lumiere,Arial,sans-serif;background:var(--b4-paper);color:var(--b4-ink);overflow-wrap:break-word}
.b4-lumiere-book *{box-sizing:border-box;min-width:0}
.b4-lumiere-book p{margin:0 0 1em}
.b4-lumiere-book h3,.b4-lumiere-book h4{font-weight:500;margin:0;line-height:1.1}
.b4-lumiere-eyebrow{display:block;font-size:10px;font-weight:500;letter-spacing:.1em;line-height:1.5;text-transform:uppercase}
.b4-lumiere-note{font-size:12px;line-height:1.7;color:#645D52;max-width:900px;margin:25px 0 0!important}
.b4-lumiere-tag{display:inline-block;padding:6px 10px;border:1px solid var(--b4-line);font-size:11px;border-radius:25px;margin-bottom:20px}
.b4-lumiere-nav{display:flex;flex-wrap:wrap;gap:0 22px;background:#fff;padding:16px 4.5vw;border-bottom:1px solid var(--b4-line)}
.b4-lumiere-nav a{display:flex;align-items:center;gap:9px;min-height:44px;font-size:12px;text-decoration:none;color:var(--b4-ink)}
.b4-lumiere-nav a span{font-size:10px;opacity:.5}
.b4-lumiere-nav a:hover{text-decoration:underline;text-underline-offset:5px}
.b4-lumiere-edition{display:grid;grid-template-columns:1fr 1.2fr;gap:8vw;padding:30px 4.5vw;border-bottom:1px solid var(--b4-line)}
.b4-lumiere-edition p{font-size:13px;margin:0;max-width:680px}
.b4-lumiere-chapter{padding:96px 4.5vw;border-bottom:1px solid var(--b4-line);scroll-margin-top:100px}
.b4-lumiere-head{display:grid;grid-template-columns:1fr 1.2fr;gap:8vw;margin-bottom:54px}
.b4-lumiere-head h3{font-size:clamp(40px,5.3vw,80px);line-height:1.02;letter-spacing:-.055em;margin-top:25px;max-width:650px;font-family:Georgia,serif;font-weight:400;letter-spacing:-.045em}
.b4-lumiere-intro{padding-top:36px;font-size:18px;max-width:660px}
.b4-lumiere-mark{display:block;width:100%;max-width:100%;height:auto;object-fit:contain}
.b4-lumiere-form-board{display:grid;grid-template-columns:1.15fr 1fr;gap:5vw;align-items:center;border-top:3px solid var(--b4-accent);background:#fff;padding:30px}
.b4-lumiere-form-art{width:100%;max-width:620px;margin:auto}
.b4-lumiere-features{list-style:none;margin:0;padding:0}
.b4-lumiere-features li{border-top:1px solid var(--b4-line);padding:22px 0}
.b4-lumiere-features h4{font-size:25px;margin:14px 0;letter-spacing:-.025em}
.b4-lumiere-features p{font-size:14px;max-width:470px;margin-bottom:0}
.b4-lumiere-versions{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--b4-line);border:1px solid var(--b4-line)}
.b4-lumiere-versions figure{margin:0;padding:35px;background:#fff}
.b4-lumiere-versions img{max-width:520px;margin:auto}
.b4-lumiere-book figcaption{font-size:11px;line-height:1.5;margin-top:20px}
.b4-lumiere-palette{display:grid;grid-template-columns:repeat(3,1fr)}
.b4-lumiere-swatch{display:flex;flex-direction:column;justify-content:space-between;padding:28px;min-height:290px;border:1px solid #171a2010}
.b4-lumiere-swatch strong{font-size:clamp(25px,3.25vw,48px);font-weight:500;letter-spacing:-.05em;white-space:nowrap}
.b4-lumiere-roles{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin-top:28px}
.b4-lumiere-roles h4{font-size:18px;margin-bottom:16px}
.b4-lumiere-roles p{font-size:13px}
.b4-lumiere-type-board{display:grid;grid-template-columns:1fr 1.1fr;background:#fff}
.b4-lumiere-type-specimen{padding:45px;background:var(--b4-ink);color:#fff}
.b4-lumiere-aa{display:block;font:400 clamp(90px,14vw,190px)/1.3 Georgia,serif;letter-spacing:-.06em;margin:25px 0}
.b4-lumiere-alphabet{font:14px/1.8 Georgia,serif;overflow-wrap:anywhere}
.b4-lumiere-type-usage{padding:45px}
.b4-lumiere-type-usage h4{font:400 clamp(35px,4.8vw,70px)/1.04 Georgia,serif;letter-spacing:-.04em;margin:35px 0}
.b4-lumiere-type-usage p{font-size:15px;max-width:430px}
.b4-lumiere-type-meta{font-size:11px;display:block;margin-top:40px}
.b4-lumiere-crop{position:relative;display:block;overflow:hidden;width:100%;background:#fff;flex:none}
.b4-lumiere-crop img{position:absolute;display:block;max-width:none!important;max-height:none!important;min-width:0!important;min-height:0!important;object-fit:fill!important;margin:0;padding:0}
.b4-lumiere-space-board{padding:55px;background:#EAE5D9;display:grid;place-items:center}
.b4-lumiere-space-frame{position:relative;width:min(680px,100%);padding:70px;border:1px dashed var(--b4-ink);background:#fff}
.b4-lumiere-space-label,.b4-lumiere-space-caption{position:absolute;font-size:10px;line-height:1.4;text-align:center;left:12px;right:12px}
.b4-lumiere-space-label{top:22px}.b4-lumiere-space-caption{bottom:22px}
.b4-lumiere-scale-lab{background:#fff;border-top:3px solid var(--b4-accent);padding:30px}
.b4-lumiere-scale-top{display:flex;justify-content:space-between;gap:20px;font-size:13px}
.b4-lumiere-scale-top output{white-space:nowrap;font-variant-numeric:tabular-nums}
.b4-lumiere-scale-lab input{width:100%;display:block;min-height:44px;accent-color:var(--b4-accent);cursor:pointer;touch-action:pan-x;margin:10px 0}
.b4-lumiere-scale-stage{display:flex;justify-content:safe center;align-items:center;overflow:auto;max-width:100%;min-height:430px;border-block:1px solid var(--b4-line);padding:30px 0}
.b4-lumiere-scale-stage>[data-b4-scale]{flex:none;max-width:none;margin:auto}
.b4-lumiere-use-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:35px}
.b4-lumiere-good,.b4-lumiere-bad{background:#fff;padding:30px;border-top:3px solid var(--b4-ink)}
.b4-lumiere-good>.b4-lumiere-mark{max-width:370px;margin:15px auto}
.b4-lumiere-errors{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:35px 0}
.b4-lumiere-errors figure{margin:0;overflow:hidden}
.b4-lumiere-errors figcaption{font-size:10px}
.b4-lumiere-stretch{transform:scaleY(.54)}.b4-lumiere-rotate{transform:rotate(-17deg) scale(.8)}.b4-lumiere-fade{opacity:.19}
.b4-lumiere-book ul{padding-left:18px;margin:25px 0 0}
.b4-lumiere-book li{margin-bottom:12px}
.b4-lumiere-good ul,.b4-lumiere-bad ul{font-size:14px}
.b4-lumiere-applications{display:grid;grid-template-columns:1.15fr 1fr;gap:30px;align-items:start}
.b4-lumiere-application{margin:0;background:#fff;padding:36px;border-top:3px solid var(--b4-accent);display:grid;min-height:620px;align-content:start}
.b4-lumiere-app-top{display:flex;justify-content:space-between;gap:20px;border-bottom:1px solid var(--b4-line);padding-bottom:20px}
.b4-lumiere-app-number{font-size:11px;white-space:nowrap;flex:none}
.b4-lumiere-app-logo{width:180px;max-width:100%;margin:22px 0}
.b4-lumiere-app-content h4{font:400 clamp(34px,4vw,60px)/1.04 Georgia,serif;letter-spacing:-.04em;margin:0 0 25px}
.b4-lumiere-app-content p{font-size:14px;max-width:430px}
.b4-lumiere-app-labels{margin-top:30px;border-top:1px solid var(--b4-line)}
.b4-lumiere-app-labels span{display:flex;gap:18px;padding:13px 0;border-bottom:1px solid var(--b4-line);font-size:13px}
.b4-lumiere-app-labels small{font-size:9px;opacity:.6}
.b4-lumiere-application figcaption{border-top:1px solid var(--b4-line);padding-top:20px;margin-top:35px}
.b4-lumiere-application figcaption strong{display:block;font-size:15px;font-weight:500;margin-bottom:12px}
.b4-lumiere-application figcaption p{font-size:12px;line-height:1.65;margin-bottom:18px}
.b4-lumiere-provenance{display:grid;grid-template-columns:1fr 1fr;gap:50px;border-top:1px solid var(--b4-line);padding-top:30px;font-size:14px}
.b4-lumiere-details{border-block:1px solid var(--b4-line);margin-top:40px;font-size:13px;padding-bottom:10px}
.b4-lumiere-details summary{padding:22px 0;min-height:62px;cursor:pointer}
.b4-lumiere-footer{display:flex;align-items:center;justify-content:space-between;gap:35px;padding-top:50px}
.b4-lumiere-footer button{font:500 13px B4Inter_lumiere,Arial,sans-serif;min-height:54px;padding:17px 23px;border:1px solid var(--b4-ink);border-radius:28px;color:var(--b4-ink);background:#fff;cursor:pointer}
.b4-lumiere-footer button span{margin-left:20px;font-size:18px}
.b4-lumiere-book :focus-visible{outline:2px solid var(--b4-accent);outline-offset:5px}
@media(min-width:701px){.b4-lumiere-seen{animation:b4-lumiere-arrive .6s ease both}}
@keyframes b4-lumiere-arrive{from{opacity:.45;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1000px){.b4-lumiere-palette,.b4-lumiere-roles{grid-template-columns:repeat(2,1fr)}.b4-lumiere-form-board{gap:30px;padding:25px}.b4-lumiere-features h4{font-size:22px}.b4-lumiere-application{padding:28px;min-height:640px}}
@media(max-width:700px){
 .b4-lumiere-nav{padding:12px 20px;gap:0 18px}.b4-lumiere-nav a{font-size:12px}
 .b4-lumiere-edition{grid-template-columns:1fr;gap:15px;padding:25px 20px}
 .b4-lumiere-chapter{padding:60px 20px;scroll-margin-top:88px}
 .b4-lumiere-head{grid-template-columns:1fr;gap:25px;margin-bottom:35px}.b4-lumiere-head h3{font-size:clamp(37px,10.8vw,57px);margin-top:20px}.b4-lumiere-intro{padding:0;font-size:17px}
 .b4-lumiere-form-board{grid-template-columns:1fr;gap:28px;padding:20px}.b4-lumiere-form-art{max-width:420px}.b4-lumiere-features h4{font-size:25px}
 .b4-lumiere-versions{grid-template-columns:1fr}.b4-lumiere-versions figure{padding:24px}
 .b4-lumiere-palette,.b4-lumiere-roles{grid-template-columns:1fr}.b4-lumiere-swatch{min-height:190px;padding:25px}.b4-lumiere-swatch strong{font-size:42px}.b4-lumiere-roles{gap:15px}.b4-lumiere-roles>div{border-top:1px solid var(--b4-line);padding-top:20px}
 .b4-lumiere-type-board{grid-template-columns:1fr}.b4-lumiere-type-specimen,.b4-lumiere-type-usage{padding:28px 24px}.b4-lumiere-aa{font-size:130px}.b4-lumiere-alphabet{font-size:12px}.b4-lumiere-type-usage h4{font-size:42px}
 .b4-lumiere-space-board{padding:26px 15px}.b4-lumiere-space-frame{padding:60px 25px}.b4-lumiere-space-label,.b4-lumiere-space-caption{font-size:9px}
 .b4-lumiere-scale-lab{padding:25px 14px}.b4-lumiere-scale-top{font-size:12px;gap:12px}.b4-lumiere-scale-stage{min-height:380px}
 .b4-lumiere-use-grid{grid-template-columns:1fr;gap:28px}.b4-lumiere-good,.b4-lumiere-bad{padding:25px 20px}.b4-lumiere-errors{gap:8px}
 .b4-lumiere-applications{grid-template-columns:1fr;gap:28px}.b4-lumiere-application{padding:28px 23px;min-height:0}.b4-lumiere-app-logo{width:150px}.b4-lumiere-app-content h4{font-size:40px}
 .b4-lumiere-provenance{grid-template-columns:1fr;gap:35px}.b4-lumiere-footer{flex-direction:column;align-items:flex-start;gap:30px}.b4-lumiere-footer button{width:100%;text-align:left}
}
@media(prefers-reduced-motion:reduce){.b4-lumiere-seen{animation:none}}

/* Case-specific application composition. */
.b4-lumiere-application-1{text-align:center}.b4-lumiere-application-1 .b4-lumiere-app-logo{margin:24px auto}.b4-lumiere-application-1 .b4-lumiere-app-content p{margin-inline:auto}.b4-lumiere-application-2{border-top:1px solid #9B6F27;background:#FFFDFA}.b4-lumiere-app-labels span{justify-content:space-between}.b4-lumiere-app-content h4{font-weight:400}

.b4-lumiere-book .gallery-icon{display:inline-block;width:1em;height:1em;vertical-align:-.12em}
.b4-lumiere-scale-stage:focus-visible{outline:2px solid var(--b4-accent);outline-offset:4px}