:root{
  --paper:#F5F2EC; --paper-2:#EDE8DF; --ink:#1F1E1C; --ink-2:#4A4743; --ink-3:#6B665F;
  --line:#D6CFC3; --line-2:#BDB4A6; --accent:#9A4F2E; --accent-ink:#7E3F23;
  --win:#C9D3D6; --joinery:#B9AE9E;
  --serif:"Iowan Old Style","Charter","Sitka Text","Source Serif Pro","Noto Serif",Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Helvetica,"Noto Sans",Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,"DejaVu Sans Mono",monospace;
  --max:1200px; --gut:clamp(20px,4vw,48px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
a{color:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut)}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--paper);padding:8px 12px;z-index:10}
.skip:focus{left:8px;top:8px}

/* header */
.top{border-bottom:1px solid var(--line);background:var(--paper);position:sticky;top:0;z-index:5}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:600;letter-spacing:-.01em;font-size:17px}
.brand svg{width:22px;height:22px}
.nav{display:flex;align-items:center;gap:28px;font-size:15px}
.nav a{text-decoration:none;color:var(--ink-2)}
.nav a:hover{color:var(--ink)}
.nav .links{display:flex;gap:28px}
@media (max-width:760px){.nav .links{display:none}}

.btn{display:inline-flex;align-items:center;gap:10px;background:var(--ink);color:var(--paper)!important;text-decoration:none;font:500 15px/1 var(--sans);padding:14px 20px;border-radius:2px;border:1px solid var(--ink);transition:background .15s}
.btn:hover{background:#000}
.btn .arr{transition:transform .15s}
.btn:hover .arr{transform:translateX(3px)}
.btn-sm{padding:10px 14px;font-size:14px}
.link{color:var(--ink);text-decoration:underline;text-decoration-color:var(--line-2);text-underline-offset:4px;font-size:15px}
.link:hover{text-decoration-color:var(--ink)}

.eyebrow{font:500 12px/1.4 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin:0 0 20px}
.eyebrow b{color:var(--accent);font-weight:500}

h1,h2,h3{font-family:var(--serif);font-weight:400;letter-spacing:-.015em;margin:0}
h1{font-size:clamp(40px,6vw,76px);line-height:1.02;max-width:12ch}
h2{font-size:clamp(30px,3.6vw,44px);line-height:1.1;max-width:20ch}
h3{font-family:var(--sans);font-size:18px;font-weight:600;letter-spacing:-.005em;line-height:1.35}
p{margin:0}
.lede{font-size:clamp(18px,1.6vw,20px);line-height:1.55;color:var(--ink-2);max-width:36em}

/* hero */
.hero{padding:clamp(48px,8vw,96px) 0 clamp(72px,10vw,128px);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:clamp(32px,5vw,72px);align-items:center}
.hero .lede{margin:28px 0 36px}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px 28px}
.fine{font-size:14px;color:var(--ink-3);margin-top:20px}
@media (max-width:960px){.hero-grid{grid-template-columns:1fr}}

.sheet{border:1px solid var(--line-2);background:#FAF8F4;position:relative}
.sheet-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:10px 14px;font:500 11px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.toggle{display:flex;border:1px solid var(--line-2)}
.toggle button{appearance:none;border:0;background:transparent;font:inherit;color:var(--ink-3);padding:7px 10px;cursor:pointer;letter-spacing:.08em}
.toggle button+button{border-left:1px solid var(--line-2)}
.toggle button[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.sheet-body{padding:clamp(16px,3vw,32px);aspect-ratio:7/5;display:flex;align-items:center;justify-content:center}
#plan{width:100%;height:100%}
.sheet-foot{display:grid;grid-template-columns:1fr auto auto;border-top:1px solid var(--line);font:500 11px/1.3 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.sheet-foot span{padding:10px 14px}
.sheet-foot span+span{border-left:1px solid var(--line)}

#plan .slab{fill:#F1EDE6;stroke:var(--line-2);stroke-width:.03}
#plan .f-t{fill:var(--ink)}
#plan .f-t.sill{fill:var(--win);stroke:#8A979B;stroke-width:.02}
#plan .f-t.joinery{fill:none;stroke:var(--ink-2);stroke-width:.035}
#plan.is-3d .f-t.joinery{fill:#EFEAE2;stroke:#A89D8C;stroke-width:.02}
#plan .f-s{fill:#E4DED4;stroke:#CFC7B9;stroke-width:.01}
#plan .f-w,#plan .f-e{fill:#CEC6B8;stroke:#BFB6A6;stroke-width:.01}
#plan .f-s.sill,#plan .f-w.sill,#plan .f-e.sill{fill:#D9D2C6}
#plan .f-s.joinery{fill:#D6CDBF}#plan .f-w.joinery,#plan .f-e.joinery{fill:#BFB4A4}
#plan .lbl{font:500 .34px var(--mono);letter-spacing:.02em;fill:var(--ink-2);text-anchor:middle;dominant-baseline:middle;text-transform:uppercase}
#plan .dim line{stroke:var(--ink-3);stroke-width:.02}
#plan .dim text{font:400 .3px var(--mono);fill:var(--ink-3);text-anchor:middle}
#plan .swing path{fill:none;stroke:var(--ink-3);stroke-width:.02}

/* sections */
.sec{padding:clamp(72px,10vw,128px) 0;border-bottom:1px solid var(--line)}
.sec-head{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(24px,5vw,72px);margin-bottom:clamp(40px,6vw,72px)}
.sec-head .lede{align-self:end}
@media (max-width:860px){.sec-head{grid-template-columns:1fr}}

.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--ink);counter-reset:s;list-style:none;margin:0;padding:0}
.steps li{padding:28px 32px 8px 0;}
.steps li+li{border-left:1px solid var(--line);padding-left:32px}
.num{font:500 12px/1 var(--mono);letter-spacing:.08em;color:var(--accent);display:block;margin-bottom:28px}
.steps h3{margin-bottom:10px}
.steps p,.grid3 p{color:var(--ink-2);font-size:16px}
@media (max-width:860px){.steps{grid-template-columns:1fr}.steps li,.steps li+li{border-left:0;padding:24px 0;border-bottom:1px solid var(--line)}}

.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--line)}
.grid3>div{padding:32px 32px 0 0}
.grid3>div+div{padding-left:32px;border-left:1px solid var(--line)}
.grid3 h3{margin-bottom:10px}
.icon{width:44px;height:44px;margin-bottom:24px;color:var(--ink)}
@media (max-width:860px){.grid3{grid-template-columns:1fr}.grid3>div,.grid3>div+div{padding:28px 0;border-left:0;border-bottom:1px solid var(--line)}}

.split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(32px,6vw,96px);align-items:start}
@media (max-width:860px){.split{grid-template-columns:1fr}}
.who{list-style:none;margin:36px 0 0;padding:0;border-top:1px solid var(--line)}
.who li{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:24px;padding:18px 0;border-bottom:1px solid var(--line)}
.who strong{font-weight:600}
.who span{color:var(--ink-2);font-size:16px}
@media (max-width:560px){.who li{grid-template-columns:1fr;gap:4px}}

.card{border:1px solid var(--ink);padding:32px;background:#FAF8F4}
.card .eyebrow{margin-bottom:14px}
.card p.big{font-family:var(--serif);font-size:28px;line-height:1.2;margin-bottom:16px}
.card p{color:var(--ink-2);font-size:16px}
.card .btn{margin-top:28px}
.catalogue{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:28px}
.catalogue svg{width:100%;height:auto;border:1px solid var(--line);background:var(--paper)}

/* faq */
.faq{border-top:1px solid var(--ink);max-width:880px;margin-left:auto}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:24px;padding:22px 0;font-weight:600;font-size:18px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";flex:none;width:12px;height:12px;margin-top:8px;background:linear-gradient(var(--ink),var(--ink)) center/12px 1.5px no-repeat,linear-gradient(var(--ink),var(--ink)) center/1.5px 12px no-repeat;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 48px 24px 0;color:var(--ink-2);max-width:40em}
.faq-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(24px,5vw,72px)}
@media (max-width:860px){.faq-wrap{grid-template-columns:1fr}}

/* contact */
.contact{background:var(--ink);color:var(--paper);border-bottom:0}
.contact .eyebrow{color:#A9A39A}
.contact .eyebrow b{color:#D99B78}
.contact .lede{color:#CFC9BF}
.contact .btn{background:var(--paper);color:var(--ink)!important;border-color:var(--paper)}
.contact .btn:hover{background:#fff}
.people{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid #4A4743;margin-top:56px}
.people div{padding:24px 24px 0 0}
.people div+div{border-left:1px solid #4A4743;padding-left:24px}
.people .role{font:500 12px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:#A9A39A;margin-bottom:10px}
.people a{color:var(--paper);text-decoration:underline;text-decoration-color:#6B665F;text-underline-offset:4px}
.people a:hover{text-decoration-color:var(--paper)}
@media (max-width:560px){.people{grid-template-columns:1fr}.people div+div{border-left:0;padding-left:0;border-top:1px solid #4A4743;margin-top:24px}}

/* footer */
.foot{padding:32px 0;font-size:14px;color:var(--ink-3)}
.foot .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 32px}
.foot a{color:var(--ink-2);text-underline-offset:3px}
.foot nav{display:flex;gap:24px}

/* prose page */
.prose{max-width:720px;padding:clamp(56px,8vw,96px) 0}
.prose h1{font-size:clamp(36px,5vw,56px);margin-bottom:12px}
.prose h2{font-family:var(--sans);font-size:19px;font-weight:600;letter-spacing:0;margin:40px 0 10px}
.prose p,.prose li{color:var(--ink-2)}
.prose p+p{margin-top:12px}
.prose ul{padding-left:20px}

.contact-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(32px,6vw,96px);align-items:end}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr}}
.send{list-style:none;margin:0;padding:0;border-top:1px solid #4A4743}
.send li{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid #4A4743;font-size:16px}
.send li span{font:500 12px/1.9 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:#A9A39A}
/* landing pages */
.hero-plain{padding:clamp(48px,8vw,96px) 0 clamp(56px,8vw,96px);border-bottom:1px solid var(--line)}
.hero-plain h1{max-width:16ch}
.hero-plain .lede{margin:28px 0 0;max-width:40em}
.hero .crumbs{margin-bottom:20px}
.crumbs{font-size:13px;color:var(--ink-3);margin:0 0 24px}
.crumbs a{color:var(--ink-2);text-decoration:none}
.crumbs a:hover{color:var(--ink)}
.crumbs span[aria-hidden]{margin:0 0.55em;color:var(--line-2)}
.related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.related li{padding:28px 32px 0 0}
.related li+li{border-left:1px solid var(--line);padding-left:32px}
.related a{font-weight:600;text-decoration:none}
.related a:hover{color:var(--accent-ink)}
.related p{color:var(--ink-2);font-size:16px;margin-top:8px}
@media (max-width:860px){.related{grid-template-columns:1fr}.related li,.related li+li{border-left:0;padding:24px 0;border-bottom:1px solid var(--line)}}
.need{list-style:none;margin:0;padding:0;border-top:1px solid var(--ink)}
.need li{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,2fr) auto;gap:24px;padding:18px 0;border-bottom:1px solid var(--line);align-items:start}
.need strong{font-weight:600}
.need span{color:var(--ink-2);font-size:16px}
.need em{font:500 12px/1.9 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);font-style:normal}
@media (max-width:700px){.need li{grid-template-columns:1fr auto;gap:4px 16px}.need span{grid-column:1/-1}}
.foot nav{display:flex;flex-wrap:wrap;gap:12px 24px}
.foot a[aria-current="page"]{color:var(--ink);text-decoration:none}