/* The Sofa Collection — site styles. Two looks share one stylesheet: html.theme-a (Pattern Book) / html.theme-b (Gallery). */
:root{
  --measure:68ch;--radius:3px;
  --hero-bg:#12261F;--hero-ink:#EFE6D2;--hero-muted:#B9B09B;--hero-rule:rgba(196,160,90,.35);
  --bg:#F1EADB;--bg-2:#E8DFCB;--ink:#1C1A17;--ink-2:#4E483F;--muted:#625B4C;--brass-ink:#66531A;--rule:#D5CBB4;
  --accent:#2E4A3F;--accent-ink:#EFE6D2;--brass:#B8933F;--brass-soft:#D8C48F;
  --sofa:#C4A05A;--sofa-2:#A98640;--sofa-line:#7D6227;--sofa-wood:#6B4A23;
  --f-display:"Libre Caslon Display","Libre Caslon Text",Georgia,serif;
  --f-body:"Libre Caslon Text",Georgia,"Times New Roman",serif;
  --f-ui:"Source Sans 3","Segoe UI",Helvetica,Arial,sans-serif;
}
html.theme-b{
  --radius:0;
  --hero-bg:#E9E5DC;--hero-ink:#211F1D;--hero-muted:#6E6860;--hero-rule:#CFC9BD;
  --bg:#F4F2ED;--bg-2:#E9E5DC;--ink:#211F1D;--ink-2:#4A4640;--muted:#7D766C;--rule:#D9D4CA;
  --accent:#6F2B2B;--accent-ink:#F4F2ED;--brass:#6F2B2B;--brass-ink:#6F2B2B;--brass-soft:#C9A9A6;
  --sofa:#7A3532;--sofa-2:#5E2624;--sofa-line:#3D1716;--sofa-wood:#2B2624;
  --f-display:"Fraunces","Iowan Old Style",Georgia,serif;
  --f-body:"Manrope","Segoe UI",Helvetica,Arial,sans-serif;
  --f-ui:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.65 var(--f-body);}
html.theme-b body{font-size:1rem;line-height:1.7}
a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--brass-ink)}
:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
img,svg{max-width:100%}
h1,h2,h3{font-family:var(--f-display);font-weight:400;line-height:1.12;text-wrap:balance;margin:0}
html.theme-b h1,html.theme-b h2,html.theme-b h3{font-weight:300;font-variation-settings:"SOFT" 60,"opsz" 96}
h2{font-size:clamp(1.7rem,2.6vw,2.3rem);margin-block:2.6rem .9rem}
h3{font-size:1.28rem;margin-block:1.8rem .5rem;color:var(--accent)}
p{margin:0 0 1.05em}
.wrap{max-width:74rem;margin-inline:auto;padding-inline:clamp(16px,4vw,48px)}
.eyebrow{font:600 .74rem/1 var(--f-ui);letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
html.theme-b .eyebrow{font-weight:500;letter-spacing:.08em}

/* header */
.site-head{border-bottom:1px solid var(--hero-rule);background:var(--hero-bg);color:var(--hero-ink)}
html.theme-b .site-head{background:var(--bg);border-color:var(--rule);color:var(--ink)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:.9rem;flex-wrap:wrap}
.brand{font-family:var(--f-display);font-size:1.35rem;color:inherit;text-decoration:none;letter-spacing:.01em;display:flex;align-items:center;gap:.6rem}
.brand svg{width:34px;height:20px}
.brand small{display:block;font:500 .66rem/1 var(--f-ui);letter-spacing:.16em;text-transform:uppercase;color:var(--hero-muted);margin-top:.28rem}
html.theme-b .brand small{color:var(--muted)}
.nav{display:flex;gap:.2rem .9rem;flex-wrap:wrap;font:500 .82rem/1 var(--f-ui);letter-spacing:.04em}
.nav a{color:inherit;text-decoration:none;padding:.45rem .1rem;border-bottom:2px solid transparent;opacity:.85}
.nav a:hover,.nav a[aria-current]{opacity:1;border-color:var(--brass)}
.nav a.soon{opacity:.45;cursor:default}
.nav a.soon:hover{border-color:transparent}
.periods-bar{background:var(--bg-2);border-bottom:1px solid var(--rule);overflow-x:auto}
.periods-bar ol{list-style:none;margin:0 auto;padding:0;display:flex;gap:0;min-width:max-content;width:max-content}
.periods-bar li a{display:block;padding:.6rem .95rem;font:500 .78rem/1.2 var(--f-ui);letter-spacing:.05em;color:var(--ink-2);text-decoration:none;border-right:1px solid var(--rule);white-space:nowrap}
.periods-bar li a span{display:block;font-size:.66rem;color:var(--muted);letter-spacing:.02em}
.periods-bar li a[aria-current]{background:var(--accent);color:var(--accent-ink)}
.periods-bar li a[aria-current] span{color:var(--accent-ink);opacity:.75}
.periods-bar li a.soon{opacity:.5}

/* hero with timeline */
.hero{background:var(--hero-bg);color:var(--hero-ink);padding-block:clamp(2rem,5vw,4rem) clamp(2rem,4vw,3rem)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(1.5rem,4vw,4rem);align-items:center}
.hero h1{font-size:clamp(2.1rem,4.6vw,3.9rem);letter-spacing:-.01em}
html.theme-a .hero h1 em{font-style:italic;color:var(--brass-soft)}
html.theme-b .hero h1 em{font-style:italic;color:var(--accent)}
.hero .eyebrow{color:var(--hero-muted)}
.hero .lede{font-size:1.1rem;max-width:var(--measure);color:var(--hero-muted);margin-top:1rem}
html.theme-b .hero .lede{color:var(--ink-2)}
.stage-card{position:relative}
html.theme-a .stage-card{border:1px solid var(--hero-rule);padding:clamp(.8rem,2vw,1.6rem);border-radius:var(--radius);background:rgba(0,0,0,.18);box-shadow:inset 0 0 0 4px var(--hero-bg),inset 0 0 0 5px var(--hero-rule)}
html.theme-b .stage-card{padding:0}
html.theme-b .hero .wrap{grid-template-columns:minmax(0,1fr) minmax(0,.9fr)}
html.theme-b .hero .stage-card{order:-1}
html.theme-b .hero{padding-block:clamp(1.5rem,4vw,3rem)}
.sofa-stage{display:block;width:100%;height:auto;aspect-ratio:2/1}
.sofa-stage .floor{stroke:var(--hero-rule);stroke-width:1.5;stroke-linecap:round}
html.theme-b .sofa-stage .floor{stroke:var(--rule)}
.sofa{opacity:0;transition:opacity .25s linear}
.sofa.on{opacity:1}
.sofa .sf{fill:var(--sofa);stroke:var(--sofa-line);stroke-width:1.5;stroke-linejoin:round}
.sofa .sf2{fill:var(--sofa-2);stroke:var(--sofa-line);stroke-width:1.2;stroke-linejoin:round}
.sofa .sfw{fill:var(--sofa-wood);stroke:none}
.sofa .sd{fill:var(--sofa-line);stroke:none}
.sofa .sl{fill:none;stroke:var(--sofa-line);stroke-width:1.5;stroke-linecap:round}
.sofa .slw{fill:none;stroke:var(--sofa-wood);stroke-width:4;stroke-linecap:round}
.stage-label{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;margin-top:.6rem;flex-wrap:wrap}
.stage-label b{font-family:var(--f-display);font-weight:400;font-size:1.45rem}
.stage-label span{font:500 .78rem/1 var(--f-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--hero-muted)}
html.theme-b .stage-label span{color:var(--muted)}
.stage-cap{min-height:3.2em;margin:.35rem 0 .5rem;color:var(--hero-muted);font-size:.95rem}
html.theme-b .stage-cap{color:var(--ink-2)}
.timeline{margin-top:.6rem}
.timeline input[type=range]{width:100%;margin:0;accent-color:var(--brass);cursor:ew-resize;height:28px}
html.theme-b .timeline input[type=range]{accent-color:var(--accent)}
.ticks{display:grid;grid-template-columns:repeat(8,1fr);margin-top:.15rem;padding:0;list-style:none}
.ticks li{text-align:center}
.ticks li{min-width:0}
.ticks button{appearance:none;background:none;border:0;padding:.35rem 2px;color:var(--hero-muted);font:500 .6rem/1.2 var(--f-ui);letter-spacing:.02em;white-space:normal;overflow-wrap:anywhere;text-transform:uppercase;cursor:pointer;border-top:2px solid transparent;width:100%}
html.theme-b .ticks button{color:var(--muted)}
.ticks button[aria-current]{color:var(--brass);border-top-color:var(--brass)}
html.theme-b .ticks button[aria-current]{color:var(--accent);border-top-color:var(--accent)}
.stage-link{display:inline-block;margin-top:.9rem;font:600 .8rem/1 var(--f-ui);letter-spacing:.1em;text-transform:uppercase;color:var(--brass-soft);text-decoration:none;border-bottom:1px solid var(--brass)}
html.theme-b .stage-link{color:var(--accent);border-bottom-color:var(--accent)}
.stage-link:hover{color:var(--hero-ink)}
.stage-link.soon{opacity:.6;pointer-events:none}
@media (max-width:820px){.hero .wrap{grid-template-columns:1fr}.hero .copy{order:2}.ticks button{font-size:.58rem;letter-spacing:.02em}}
@media (max-width:480px){.ticks{grid-template-columns:repeat(4,1fr)}}
@media (prefers-reduced-motion:reduce){.sofa{transition:none}}

/* content blocks */
.section{padding-block:clamp(2rem,5vw,4rem)}
.section.alt{background:var(--bg-2);border-block:1px solid var(--rule)}
.section-head{max-width:var(--measure)}
.section-head h2{margin-top:.4rem}
.prose{max-width:var(--measure)}
.prose h2{max-width:var(--measure)}
.prose ul,.prose ol{padding-left:1.2rem}
.prose li{margin-bottom:.35rem}
.grid-2{display:grid;grid-template-columns:minmax(0,var(--measure)) minmax(240px,1fr);gap:clamp(1.5rem,4vw,4rem);align-items:start}
.grid-2>*{min-width:0}
@media (max-width:900px){.grid-2{grid-template-columns:1fr}.aside{position:static}}
.aside{position:sticky;top:1rem;font-size:.95rem}
.aside-box{border:1px solid var(--rule);padding:1.1rem 1.2rem;border-radius:var(--radius);background:var(--bg-2)}
html.theme-b .aside-box{background:transparent;border-color:var(--ink);border-width:1px 0}
.aside-box h3{margin-top:0;font-size:1.05rem}
.aside-box ol{margin:0;padding-left:1.1rem}
.aside-box li{margin-bottom:.4rem}

.period-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden}
.period-card{background:var(--bg);padding:1.2rem 1.25rem 1.3rem;text-decoration:none;color:inherit;display:flex;flex-direction:column;gap:.5rem;min-height:190px}
.period-card svg{width:120px;height:60px;align-self:flex-start}
.period-card b{font-family:var(--f-display);font-weight:400;font-size:1.28rem;line-height:1.15}
.period-card span.dates{font:500 .72rem/1 var(--f-ui);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.period-card p{margin:0;font-size:.92rem;color:var(--ink-2);flex:1}
.period-card .tag{font:600 .66rem/1 var(--f-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--brass-ink);align-self:flex-start}
.period-card.soon .tag{color:var(--muted)}
.period-card:hover{background:var(--bg-2)}
.period-card.soon{cursor:default}

.milestone{border-left:3px solid var(--brass);padding:.9rem 1.2rem;background:var(--bg-2);margin:1.6rem 0;border-radius:0 var(--radius) var(--radius) 0}
html.theme-b .milestone{background:transparent;border-left-color:var(--accent);padding-left:1.4rem}
.milestone .eyebrow{color:var(--brass-ink)}
html.theme-b .milestone .eyebrow{color:var(--accent)}
.milestone h3{margin-top:.3rem;color:var(--ink)}
.milestone p:last-child{margin-bottom:0}

.quickref{display:flex;flex-wrap:wrap;gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden;margin:1.6rem 0 2.2rem;max-width:960px}
.quickref div{background:var(--bg-2);padding:.9rem 1rem;flex:1 1 160px}
.quickref dt{font:600 .68rem/1 var(--f-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:.45rem}
.quickref dd{margin:0;font-size:.95rem;line-height:1.45}
.quickref dd b{font-family:var(--f-display);font-weight:400;font-size:1.3rem;display:block;margin-bottom:.15rem;font-variant-numeric:tabular-nums}

.table-wrap{overflow-x:auto;margin:1.4rem 0 2rem;max-width:1000px}
table{border-collapse:collapse;width:100%;font-size:.9rem;font-family:var(--f-body)}
html.theme-b table{font-size:.86rem}
caption{text-align:left;font:600 .72rem/1 var(--f-ui);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);padding:0 0 .6rem}
th,td{text-align:left;padding:.6rem .75rem;border-bottom:1px solid var(--rule);vertical-align:top}
th{font:600 .74rem/1.3 var(--f-ui);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);background:var(--bg-2)}
td:first-child{font-weight:600;white-space:nowrap}

.compare{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.4rem;margin-top:1.5rem}
.cmp{border:1px solid var(--rule);border-radius:var(--radius);background:var(--bg);display:flex;flex-direction:column}
html.theme-b .cmp{border:0;border-top:1px solid var(--ink)}
.cmp .then{padding:1.1rem 1.2rem .9rem;border-bottom:1px dashed var(--rule)}
.cmp .now{padding:.9rem 1.2rem 1.2rem}
.cmp-img{display:block;width:calc(100% + 2.4rem);margin:-.9rem -1.2rem .9rem;height:auto;aspect-ratio:4/3;object-fit:cover;background:var(--bg-2)}
.cmp .eyebrow{margin-bottom:.35rem}
.cmp b{font-family:var(--f-display);font-weight:400;font-size:1.15rem;display:block;margin-bottom:.3rem}
.cmp p{font-size:.92rem;color:var(--ink-2);margin:0}
.cmp .now a{display:block;font-size:.92rem;margin-top:.35rem}
.cmp .now .eyebrow{color:var(--brass-ink)}
.note{font-size:.85rem;color:var(--muted);border-top:1px solid var(--rule);padding-top:.8rem;margin-top:1.4rem;max-width:var(--measure)}

.faq{max-width:var(--measure)}
.faq details{border-top:1px solid var(--rule);padding:.6rem 0}
.faq details:last-child{border-bottom:1px solid var(--rule)}
.faq summary{cursor:pointer;font-family:var(--f-display);font-size:1.12rem;padding:.4rem 0;list-style:none;display:flex;justify-content:space-between;gap:1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--brass-ink);font-family:var(--f-ui);flex:none}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--ink-2);font-size:.97rem}

.sources{font-size:.86rem;color:var(--ink-2);columns:2;column-gap:2.5rem;max-width:1000px;padding-left:1.1rem}
.sources li{break-inside:avoid;margin-bottom:.4rem}
@media (max-width:700px){.sources{columns:1}}
.meta{font:500 .78rem/1.5 var(--f-ui);letter-spacing:.04em;color:var(--muted);margin-top:.6rem}
.article-head{padding-block:clamp(2rem,5vw,3.5rem) 1rem}
.article-head h1{font-size:clamp(2rem,4.2vw,3.4rem);max-width:22ch}
.article-head .lede{font-size:1.15rem;max-width:var(--measure);color:var(--ink-2);margin-top:1rem}
.crumbs{font:500 .74rem/1 var(--f-ui);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:1.2rem}
.crumbs a{color:inherit;text-decoration:none}
.crumbs a:hover{color:var(--brass-ink)}
.pager{display:flex;justify-content:space-between;gap:1rem;border-top:1px solid var(--rule);padding-top:1.4rem;margin-top:2.5rem;flex-wrap:wrap}
.pager a,.pager span{font:500 .8rem/1.4 var(--f-ui);letter-spacing:.06em;text-transform:uppercase;text-decoration:none}
.pager span{color:var(--muted)}
.pager a b{display:block;font-family:var(--f-display);font-weight:400;font-size:1.15rem;text-transform:none;letter-spacing:0;color:var(--ink)}

/* footer */
.site-foot{background:var(--hero-bg);color:var(--hero-muted);margin-top:3rem;font-size:.86rem}
html.theme-b .site-foot{background:var(--bg-2);color:var(--ink-2);border-top:1px solid var(--rule)}
.site-foot .wrap{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:2rem;padding-block:2.5rem}
.site-foot .foot-h{font:600 .7rem/1 var(--f-ui);letter-spacing:.14em;text-transform:uppercase;color:var(--hero-ink);margin:0 0 .8rem}
html.theme-b .site-foot .foot-h{color:var(--ink)}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li{margin-bottom:.4rem}
.site-foot a{color:inherit;text-decoration:none}
.site-foot a:hover{color:var(--brass-ink)}
.site-foot .legal{grid-column:1/-1;border-top:1px solid var(--hero-rule);padding-top:1.2rem;font-size:.78rem}
html.theme-b .site-foot .legal{border-color:var(--rule)}
@media (min-width:1600px){html{font-size:19px}}
@media (min-width:1900px){html{font-size:21px}}
@media (min-width:2400px){html{font-size:24px}}

.inbrief{font-size:1.08rem;border-left:3px solid var(--brass);padding:.2rem 0 .2rem 1.1rem;margin:0 0 1.6rem;color:var(--ink-2)}
html.theme-b .inbrief{border-left-color:var(--accent)}
.inbrief strong{color:var(--ink);font-family:var(--f-ui);font-weight:600;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;margin-right:.4rem}

.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-ink);padding:.6rem 1rem;z-index:10;font:600 .85rem var(--f-ui)}
.skip:focus{left:8px;top:8px}