:root{
  --ink:#111111;
  --ink-2:#2b2b2a;
  --mute:#6c6c68;
  --rule:#d8d8d4;
  --soft:#f2f2f0;
  --paper:#ffffff;
  --night:#0d0d0d;
  --sans:"Inter Tight",Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --gut:40px;
  --max:1360px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 17px/1.6 var(--sans);font-feature-settings:"ss01","tnum" 0;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{text-decoration-color:var(--mute)}
h1,h2,h3,h4{font-weight:500;letter-spacing:-.02em;line-height:1.1;margin:0}
p{margin:0 0 1em}
.mono{font-family:var(--mono);font-size:12px;letter-spacing:.04em;text-transform:uppercase;font-weight:400}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut)}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:8px 12px;z-index:50}
.skip:focus{left:8px}

/* header */
.site-head{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--rule)}
.head-row{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:.24em;text-transform:uppercase;font-size:14px}
.site-nav{display:flex;align-items:center;gap:40px}
.site-nav ul{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.site-nav ul a{text-decoration:none;font-size:15px;color:var(--ink-2)}
.site-nav ul a[aria-current]{text-decoration:underline;text-underline-offset:6px}
.nav-buy{text-decoration:none;border:1px solid var(--ink);padding:9px 14px}
.nav-buy:hover{background:var(--ink);color:#fff}
.nav-toggle{display:none;background:none;border:1px solid var(--ink);padding:8px 12px;cursor:pointer;color:var(--ink)}

.crumbs{padding:22px 0 0;color:var(--mute)}
.crumbs a{text-decoration:none}
.crumbs a:hover{color:var(--ink)}
.crumbs .sep{margin:0 10px;color:var(--rule)}
.crumbs [aria-current]{color:var(--ink)}

/* type scale */
.display{font-size:clamp(44px,7.2vw,112px);font-weight:400;letter-spacing:-.045em;line-height:.95}
.h-xl{font-size:clamp(36px,4.8vw,68px);font-weight:400;letter-spacing:-.035em;line-height:1}
.h-l{font-size:clamp(28px,3vw,42px);font-weight:400;letter-spacing:-.025em}
.h-m{font-size:22px;font-weight:500;letter-spacing:-.01em}
.lede{font-size:clamp(19px,1.6vw,23px);line-height:1.45;color:var(--ink-2);max-width:36em;font-weight:300}
.mute{color:var(--mute)}
.label{display:flex;gap:16px;align-items:baseline;color:var(--mute);margin:0 0 28px;border-top:1px solid var(--ink);padding-top:12px}
.label span{color:var(--ink)}

/* grid */
.grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));column-gap:24px}
.c-12{grid-column-end:span 12}.c-8{grid-column-end:span 8}.c-7{grid-column-end:span 7}.c-6{grid-column-end:span 6}.c-5{grid-column-end:span 5}.c-4{grid-column-end:span 4}.c-3{grid-column-end:span 3}
.s-2{grid-column-start:2}.s-5{grid-column-start:5}.s-6{grid-column-start:6}.s-7{grid-column-start:7}.s-8{grid-column-start:8}.s-9{grid-column-start:9}
.section{padding:112px 0}
.section.tight{padding:72px 0}
.section.rule{border-top:1px solid var(--rule)}
.dark{background:var(--night);color:#ececea}
.dark .label{border-color:#ececea;color:#8d8d89}.dark .label span{color:#fff}
.dark .mute,.dark .lede{color:#a9a9a5}
.soft{background:var(--soft)}

/* page head */
.page-head{padding-top:56px;padding-bottom:72px}
.page-head .display,.page-head .h-xl{margin:24px 0 28px;max-width:14em}
.page-head .lede{margin-top:8px}

/* home hero */
.hero{padding:40px 0 0}
.hero-top{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;padding:24px 0 40px;border-bottom:1px solid var(--rule)}
.hero-top .display{max-width:9em}
.hero-meta{text-align:right;color:var(--mute);min-width:220px}
.hero-meta p{margin:0 0 4px}
.drawing{background:var(--soft);padding:48px 32px;margin-top:0}
.drawing svg{width:100%;margin:0 auto;max-width:1080px}
.drawing figcaption{max-width:1080px;margin:24px auto 0;display:flex;justify-content:space-between;gap:16px;color:var(--mute)}
.draw-ink{stroke:var(--ink);fill:none}
.price-line{display:flex;gap:32px;flex-wrap:wrap;margin:28px 0 0}
.price-line div{min-width:120px}
.price-line dt{color:var(--mute)}
.price-line dd{margin:4px 0 0;font-size:24px;letter-spacing:-.02em}

/* buttons */
.btn{display:inline-block;text-decoration:none;border:1px solid var(--ink);padding:14px 22px;font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase}
.btn:hover{background:var(--ink);color:#fff}
.btn.solid{background:var(--ink);color:#fff}
.btn.solid:hover{background:#333}
.dark .btn{border-color:#ececea}
.dark .btn:hover{background:#ececea;color:var(--ink)}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}
.arrow{text-decoration:none;border-bottom:1px solid currentColor;padding-bottom:2px}

/* figures */
figure{margin:0}
figure img{width:100%}
figcaption.cap{margin-top:12px;color:var(--mute)}
.ratio{position:relative;overflow:hidden;background:var(--soft)}
.ratio img{width:100%;height:100%;object-fit:cover}

/* index list (numbered rows) */
.rows{list-style:none;margin:0;padding:0;border-top:1px solid var(--ink)}
.rows li{display:grid;grid-template-columns:72px 1fr 1fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--rule);align-items:baseline}
.rows .n{font-family:var(--mono);font-size:12px;color:var(--mute)}
.rows h3{font-size:20px;font-weight:500}
.rows p{margin:0;color:var(--ink-2)}

/* product index (lenses etc) */
.prod-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.prod{background:#fff;padding:28px;display:flex;flex-direction:column;text-decoration:none;min-height:100%}
.prod:hover{background:var(--soft)}
.prod .lens-svg{margin:12px 0 28px;height:200px;display:flex;align-items:center;justify-content:center}
.prod .lens-svg svg{max-height:200px;width:auto}
.prod h3{font-size:24px;font-weight:400;letter-spacing:-.02em;margin:auto 0 8px}
.prod p{margin:0;color:var(--mute)}
.prod .meta{display:flex;justify-content:space-between;margin-top:20px;padding-top:12px;border-top:1px solid var(--rule)}

/* spec tables */
.sheet-head{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--ink);margin-bottom:56px}
.sheet-head div{padding:12px 14px;border-right:1px solid var(--ink)}
.sheet-head div:last-child{border-right:0}
.sheet-head dt{color:var(--mute)}
.sheet-head dd{margin:4px 0 0;font-family:var(--mono);font-size:14px}
.spec-group{margin-bottom:56px}
.spec-head{display:flex;gap:20px;align-items:baseline;font-size:22px;font-weight:500;padding:0 0 14px;border-bottom:1px solid var(--ink)}
.spec-head .num{color:var(--mute)}
.spec table,table.data{width:100%;border-collapse:collapse}
.spec th,.spec td{text-align:left;vertical-align:top;padding:13px 0;border-bottom:1px solid var(--rule);font-weight:400}
.spec th{width:38%;padding-right:24px;font-family:var(--mono);font-size:12.5px;letter-spacing:.02em;color:var(--ink-2);text-transform:none}
.spec td{font-variant-numeric:tabular-nums}
table.data th,table.data td{text-align:left;padding:12px 16px 12px 0;border-bottom:1px solid var(--rule);vertical-align:top;font-weight:400}
table.data thead th{font-family:var(--mono);font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:var(--mute);border-bottom:1px solid var(--ink)}
table.data td.num,table.data th.num{text-align:right;font-variant-numeric:tabular-nums;padding-left:20px;padding-right:20px;white-space:nowrap}
table.data td.num:last-child,table.data th.num:last-child{padding-right:0}
.table-scroll{overflow-x:auto}
.toc{position:sticky;top:96px;list-style:none;padding:0;margin:0}
.toc li{border-top:1px solid var(--rule)}
.toc a{display:block;padding:9px 0;text-decoration:none;color:var(--ink-2)}
.toc a:hover{color:var(--ink)}

/* prose */
.prose{max-width:42em}
.prose h2{font-size:30px;font-weight:400;letter-spacing:-.025em;margin:64px 0 18px}
.prose h3{font-size:20px;font-weight:500;margin:40px 0 12px}
.prose p,.prose li{color:var(--ink-2)}
.prose ul,.prose ol{padding-left:1.2em;margin:0 0 1.2em}
.prose li{margin-bottom:.4em}
.prose figure{margin:48px 0}
.prose blockquote{margin:40px 0;padding:0 0 0 24px;border-left:1px solid var(--ink);font-size:22px;line-height:1.4;font-weight:300}
.note{border:1px solid var(--ink);padding:20px 22px;margin:32px 0}
.note .mono{display:block;margin-bottom:8px}
.note p:last-child{margin:0}

/* key figure strip */
.figures{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--ink)}
.figures div{padding:20px 20px 0 0;border-right:1px solid var(--rule)}
.figures div+div{padding-left:20px}
.figures div:last-child{border-right:0}
.figures dt{color:var(--mute)}
.figures dd{margin:10px 0 0;font-size:clamp(30px,3.2vw,48px);letter-spacing:-.035em;font-weight:300;line-height:1}
.figures dd small{font-size:.42em;letter-spacing:0;margin-left:4px;color:var(--mute)}
.dark .figures{border-color:#ececea}.dark .figures div{border-color:#333}

/* gallery */
.gal{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:56px 24px}
.gal figure.w8{grid-column:span 8}.gal figure.w4{grid-column:span 4}.gal figure.w6{grid-column:span 6}.gal figure.w12{grid-column:span 12}.gal figure.w5{grid-column:span 5}.gal figure.w7{grid-column:span 7}
.gal figcaption{display:grid;grid-template-columns:1fr auto;gap:4px 16px;margin-top:12px;font-size:14px}
.gal figcaption .mono{grid-column:1 / -1;color:var(--mute)}

/* journal */
.post-list{border-top:1px solid var(--ink)}
.post{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:24px;padding:32px 0;border-bottom:1px solid var(--rule);text-decoration:none}
.post .mono{grid-column:span 3;color:var(--mute)}
.post .t{grid-column:span 5}
.post .t h2{font-size:30px;font-weight:400;letter-spacing:-.025em;margin-bottom:10px}
.post .t p{color:var(--mute);margin:0}
.post .i{grid-column:span 4}
.post:hover h2{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.byline{display:flex;gap:28px;flex-wrap:wrap;color:var(--mute);border-top:1px solid var(--rule);padding-top:12px;margin-top:28px}

/* faq */
.faq details{border-bottom:1px solid var(--rule)}
.faq details:first-of-type{border-top:1px solid var(--ink)}
.faq summary{cursor:pointer;list-style:none;padding:22px 40px 22px 0;font-size:20px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:20px;font-family:var(--mono);font-size:20px}
.faq details[open] summary::after{content:"\2212"}
.faq .a{padding:0 0 24px;max-width:44em;color:var(--ink-2)}
.faq h2.group{margin:72px 0 0;padding-bottom:14px;font-size:14px}

/* firmware */
.release{display:grid;grid-template-columns:220px 1fr;gap:32px;padding:36px 0;border-bottom:1px solid var(--rule)}
.release:first-of-type{border-top:1px solid var(--ink)}
.release .v{font-size:34px;letter-spacing:-.03em;font-weight:300;line-height:1}
.release .d{color:var(--mute);margin-top:8px}
.release ul{margin:0;padding-left:1.1em}
.release li{margin-bottom:.35em;color:var(--ink-2)}
.release h3{font-size:13px;margin:18px 0 8px}
.release h3:first-child{margin-top:0}

/* misc */
.two-col{columns:2;column-gap:48px}
.two-col li{break-inside:avoid}
.plain{list-style:none;padding:0;margin:0}
.plain li{padding:9px 0;border-bottom:1px solid var(--rule)}
.addr{font-style:normal}
.hr{height:1px;background:var(--rule);border:0;margin:0}
.center{text-align:center}
.space-top{margin-top:72px}
.space-top-s{margin-top:32px}

/* footer */
.site-foot{border-top:1px solid var(--ink);margin-top:0;padding:64px 0 32px;font-size:15px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
.fcol h2{color:var(--mute);margin:0 0 14px}
.fcol ul{list-style:none;padding:0;margin:0}
.fcol li{margin-bottom:8px}
.fcol a{text-decoration:none}
.fcol a:hover{text-decoration:underline}
.fbrand p{color:var(--ink-2);margin-top:20px}
.foot-base{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid var(--rule);margin-top:56px;padding-top:18px;color:var(--mute)}
.foot-base a{text-decoration:none;margin-left:20px}
.fiction{font-size:13px;color:var(--mute);margin:14px 0 0}

/* 404 */
.nf{padding:120px 0 160px}
.nf .code{font-family:var(--mono);font-size:13px;color:var(--mute)}

@media (max-width:1100px){
  .site-nav ul{gap:20px}
  .site-nav{gap:24px}
  .prod-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  :root{--gut:16px}
  body{font-size:16px}
  .nav-toggle{display:block}
  .site-nav{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;border-bottom:1px solid var(--ink);flex-direction:column;align-items:stretch;padding:8px 16px 20px;gap:12px}
  .site-nav.open{display:flex}
  .site-nav ul{flex-direction:column;gap:0}
  .site-nav ul li{border-bottom:1px solid var(--rule)}
  .site-nav ul a{display:block;padding:14px 0;font-size:18px}
  .nav-buy{text-align:center}
  .grid{grid-template-columns:1fr;row-gap:32px}
  .grid>*{grid-column:1 / -1 !important}
  .section{padding:72px 0}
  .section.tight{padding:48px 0}
  .hero-top{flex-direction:column;align-items:flex-start}
  .hero-meta{text-align:left}
  .drawing{padding:24px 8px;margin:0 -16px}
  .drawing figcaption{flex-direction:column;padding:0 8px}
  .figures{grid-template-columns:1fr 1fr}
  .figures div{padding:16px 12px 16px 0!important;border-right:0;border-bottom:1px solid var(--rule)}
  .figures div:nth-child(odd){padding-right:12px;border-right:1px solid var(--rule)}
  .figures div:nth-child(even){padding-left:12px!important}
  .rows li{grid-template-columns:40px 1fr;row-gap:6px}
  .rows li p{grid-column:2}
  .prod-grid{grid-template-columns:1fr}
  .sheet-head{grid-template-columns:1fr 1fr}
  .sheet-head div:nth-child(2){border-right:0}
  .sheet-head div:nth-child(-n+2){border-bottom:1px solid var(--ink)}
  .spec th{width:44%;padding-right:12px}
  .toc{position:static;columns:2;column-gap:16px}
  .gal{gap:40px;grid-template-columns:1fr}
  .gal figure{grid-column:1 / -1 !important}
  .post{grid-template-columns:1fr;gap:12px}
  .post>*{grid-column:1 / -1 !important}
  .release{grid-template-columns:1fr;gap:16px}
  .two-col{columns:1}
  .foot-grid{grid-template-columns:1fr 1fr;row-gap:40px}
  .fbrand{grid-column:1 / -1}
  .foot-base a{margin:0 16px 0 0}
  .faq summary{font-size:18px}
  table.data{font-size:15px}
  .table-scroll table.data{min-width:620px}
  .table-scroll{margin-right:-16px;padding-right:16px}
}
.drawing.lens svg{max-height:340px;width:auto}