/* Layout: steel-shop documents. Left-aligned, condensed display type at structural scale,
   shop-drawing devices (dimension lines, piece marks) used only where they carry meaning. */
:root{
  --paper:#EEF0EE;      /* mill-scale grey ground */
  --plate:#FFFFFF;      /* raised surfaces: form, tables */
  --ink:#1E2226;        /* charcoal from the wordmark */
  --steel:#535A61;      /* secondary text */
  --rule:#C3C8CC;       /* hairlines, dimension lines */
  --oxide:#A8361F;      /* red-oxide primer accent, used sparingly */
  --oxide-ink:#FFFFFF;
  --display:"Barlow Condensed","Arial Narrow",Arial,sans-serif;
  --body:"Barlow",Helvetica,Arial,sans-serif;
  --measure:64ch;
  --wrap:1180px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#16191C;--plate:#1F2327;--ink:#E8EBED;--steel:#A3AAB1;--rule:#3A4046;--oxide:#E0643F;--oxide-ink:#16191C;color-scheme:dark}}
:root[data-theme="dark"]{--paper:#16191C;--plate:#1F2327;--ink:#E8EBED;--steel:#A3AAB1;--rule:#3A4046;--oxide:#E0643F;--oxide-ink:#16191C;color-scheme:dark}

*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:400 1.0625rem/1.6 var(--body)}
img{max-width:100%;display:block}
a{color:inherit;text-underline-offset:.2em}
a:hover{color:var(--oxide)}
:focus-visible{outline:3px solid var(--oxide);outline-offset:3px}
.wrap{max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(16px,4vw,40px)}
h1,h2,h3{font-family:var(--display);font-weight:800;line-height:.95;text-wrap:balance;margin:0}
h2{font-size:clamp(2.2rem,5vw,3.6rem);letter-spacing:-.005em}
h3{font-size:1.6rem;line-height:1.05;font-weight:700}
p{margin:0;max-width:var(--measure)}
.lede{font-size:1.2rem;color:var(--steel)}

/* header */
.site-head{border-bottom:1px solid var(--rule);background:var(--paper)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:18px;flex-wrap:wrap}
.brand img{height:44px;width:auto}
.brand .rev{display:none}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .brand .std{display:none}:root:not([data-theme="light"]) .brand .rev{display:block}}
:root[data-theme="dark"] .brand .std{display:none}:root[data-theme="dark"] .brand .rev{display:block}
.nav{display:flex;gap:22px;align-items:center;flex-wrap:wrap;font-weight:500}
.nav a{text-decoration:none}
.btn{display:inline-block;background:var(--oxide);color:var(--oxide-ink);font-weight:600;text-decoration:none;padding:.7em 1.15em;border:0;border-radius:2px;font:600 1rem var(--body);cursor:pointer}
.btn:hover{color:var(--oxide-ink);filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:inset 0 0 0 2px var(--ink)}

/* hero */
.hero{padding-block:clamp(40px,7vw,88px) 0}
.hero h1{font-size:clamp(3.4rem,11vw,9.5rem);letter-spacing:-.015em;line-height:.86}
.hero h1 span{display:block}
.dim{margin-top:clamp(24px,4vw,40px);display:grid;grid-template-columns:minmax(0,3fr) minmax(0,1fr);gap:0;font-size:.95rem;color:var(--steel)}
.dim div{position:relative;padding-top:18px;border-top:1px solid var(--steel)}
.dim div::before,.dim div::after{content:"";position:absolute;top:-8px;height:15px;border-left:1px solid var(--steel)}
.dim div::before{left:0}.dim div::after{right:0}
.dim div:last-child{border-top-color:var(--oxide);color:var(--ink)}
.dim div:last-child::after{border-color:var(--oxide)}
.dim strong{display:block;font-family:var(--display);font-size:1.35rem;color:var(--ink)}
.hero-row{display:flex;gap:28px;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;margin-top:36px}
.hero-row p{font-size:1.2rem}
.hero-photo{margin-top:clamp(32px,5vw,56px);aspect-ratio:21/8;object-fit:cover;width:100%;max-width:100%}

section{padding-block:clamp(56px,8vw,104px)}
section + section{border-top:1px solid var(--rule)}
.head-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(20px,4vw,56px);align-items:end;margin-bottom:clamp(28px,4vw,48px)}
@media (max-width:760px){.head-row{grid-template-columns:1fr}}

/* scope */
.scope{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,36px)}
@media (max-width:900px){.scope{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.scope{grid-template-columns:1fr}}
.scope figure{margin:0;display:grid;gap:14px;align-content:start}
.scope img{aspect-ratio:4/3;object-fit:cover;width:100%}
.scope figcaption{display:grid;gap:6px}
.scope p{color:var(--steel);font-size:1rem}

/* process: a real sequence, so it is numbered */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));counter-reset:s}
@media (max-width:900px){.steps{grid-template-columns:1fr}}
.steps li{counter-increment:s;padding:22px 20px 24px 0;border-top:3px solid var(--ink);display:grid;gap:8px;align-content:start}
.steps li.field{border-top-color:var(--oxide)}
.steps li::before{content:counter(s);font-family:var(--display);font-weight:800;font-size:2.4rem;line-height:1;color:var(--steel)}
.steps li.field::before{color:var(--oxide)}
.steps p{font-size:.98rem;color:var(--steel)}
.where{font-size:.9rem;font-weight:600;color:var(--ink)}

/* split photo band */
.band{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:clamp(24px,4vw,56px);align-items:center}
@media (max-width:860px){.band{grid-template-columns:1fr}}
.band img{width:100%;aspect-ratio:4/3;object-fit:cover}
.band .text{display:grid;gap:18px}
.checks{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.checks li{padding-left:28px;position:relative;max-width:var(--measure)}
.checks li::before{content:"";position:absolute;left:0;top:.55em;width:14px;height:3px;background:var(--oxide)}

/* products table: piece marks are real drawing numbers */
.products{width:100%;border-collapse:collapse;background:var(--plate);font-size:1rem}
.tablewrap{overflow-x:auto}
.products th,.products td{text-align:left;padding:16px 18px;border-bottom:1px solid var(--rule);vertical-align:top}
.products th{font-weight:600;color:var(--steel);font-size:.9rem}
.products td:first-child{font-family:var(--display);font-weight:700;font-size:1.3rem;white-space:nowrap}
.mark{font-variant-numeric:tabular-nums;color:var(--steel);white-space:nowrap}

/* credentials */
.creds{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:3px solid var(--ink)}
@media (max-width:860px){.creds{grid-template-columns:repeat(2,minmax(0,1fr))}}
.creds div{padding:20px 20px 4px 0;display:grid;gap:6px}
.creds dt{font-weight:600}
.creds dd{margin:0;color:var(--steel);font-size:.98rem}

/* call to bid */
.bid{background:var(--ink);color:var(--paper)}
.bid h2{color:var(--paper)}
.bid p{color:var(--paper);opacity:.85}
.bid .wrap{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.bid .btn{background:var(--oxide);color:var(--oxide-ink)}
.bid .contact{display:grid;gap:4px;font-size:1.1rem}

/* footer */
.site-foot{padding-block:40px;font-size:.95rem;color:var(--steel)}
.site-foot .wrap{display:flex;gap:28px;justify-content:space-between;flex-wrap:wrap}
.site-foot nav{display:flex;gap:20px;flex-wrap:wrap}

/* forms */
.form{background:var(--plate);padding:clamp(20px,4vw,40px);display:grid;gap:22px;border-top:3px solid var(--ink)}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
@media (max-width:640px){.grid2{grid-template-columns:1fr}}
.field{display:grid;gap:6px}
.field label{font-weight:600}
.field small{color:var(--steel)}
input,select,textarea{font:inherit;color:var(--ink);background:var(--paper);border:1px solid var(--rule);border-radius:2px;padding:.65em .75em;width:100%}
textarea{min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:2px solid var(--oxide);outline-offset:0;border-color:transparent}
fieldset{border:0;padding:0;margin:0;display:grid;gap:10px}
legend{font-weight:600;margin-bottom:6px}
.opts{display:flex;flex-wrap:wrap;gap:10px 22px}
.opts label{display:flex;gap:8px;align-items:center;font-weight:400}
.opts input{width:auto}
.status{font-weight:600}
.status.err{color:var(--oxide)}

/* legal pages */
.doc{display:grid;gap:18px;max-width:72ch}
.doc h1{font-size:clamp(2.6rem,7vw,4.6rem)}
.doc h2{font-size:1.8rem;margin-top:14px}
.doc p,.doc li{max-width:none}
.doc ul,.doc ol{margin:0;padding-left:1.3em;display:grid;gap:8px}
.version{color:var(--steel)}
.notice{border-left:4px solid var(--oxide);padding:12px 16px;background:var(--plate)}

@media (prefers-reduced-motion:no-preference){
  .hero h1 span{animation:rise .7s cubic-bezier(.2,.7,.2,1) both}
  .hero h1 span+span{animation-delay:.12s}
  .dim div:last-child{animation:draw .9s .5s ease-out both;transform-origin:left}
  @keyframes rise{from{transform:translateY(.25em);opacity:.0001}to{transform:none;opacity:1}}
  @keyframes draw{from{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0 0 0 0)}}
}
.bid .contact .btn{justify-self:start}
.products td:last-child{white-space:nowrap}
@media (max-width:640px){.nav a:not(.btn){display:none}.site-head .wrap{flex-wrap:nowrap}.brand img{height:34px}}

/* product pages */
.prod{display:grid;gap:clamp(28px,4vw,48px)}
.crumb{font-size:.95rem;color:var(--steel)}
.prod-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;flex-wrap:wrap}
.prod-title{display:grid;gap:14px;min-width:0}
.prod-head h1{font-size:clamp(2.6rem,7vw,4.6rem)}
.prod-cta{display:grid;gap:8px;justify-items:start;font-size:.95rem;color:var(--steel)}
.prod-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:clamp(24px,4vw,48px);align-items:start;border-top:3px solid var(--ink);padding-top:24px}
@media (max-width:860px){.prod-grid{grid-template-columns:1fr}}
.prod-text{display:grid;gap:14px;min-width:0}
.prod h2{font-size:1.8rem}
.spec{margin:0;display:grid}
.spec div{display:grid;grid-template-columns:9.5em minmax(0,1fr);gap:16px;padding:10px 0;border-bottom:1px solid var(--rule)}
.spec dt{font-weight:600}
.spec dd{margin:0;color:var(--steel)}
@media (max-width:480px){.spec div{grid-template-columns:1fr;gap:2px}}
.prod-fig{margin:0;display:grid;gap:10px;min-width:0}
.prod-fig img{width:100%;height:auto;background:#fff;border:1px solid var(--rule)}
.prod-fig figcaption{font-size:.92rem;color:var(--steel)}
.prod-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,40px)}
@media (max-width:860px){.prod-cols{grid-template-columns:1fr}}
.prod-cols>div{display:grid;gap:14px;align-content:start;border-top:1px solid var(--rule);padding-top:18px}
.fine{font-size:.92rem;color:var(--steel)}
.foot-id{display:flex;gap:16px;align-items:flex-start}
.foot-id img{flex:none;width:44px;height:44px}