:root{
  --bg:#F4F5F3;
  --surface:#FFFFFF;
  --ink:#1B2126;
  --ink-soft:#4E5A62;
  --line:#D3D8D8;
  --steel:#2B3E52;
  --steel-ink:#FFFFFF;
  --rust:#C1521F;
  --rust-ink:#FFFFFF;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#14181B;
    --surface:#1D2327;
    --ink:#ECEEEE;
    --ink-soft:#A6B0B6;
    --line:#333B40;
    --steel:#7FA0BE;
    --steel-ink:#101418;
    --rust:#E2793F;
    --rust-ink:#161010;
    color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --bg:#14181B;
  --surface:#1D2327;
  --ink:#ECEEEE;
  --ink-soft:#A6B0B6;
  --line:#333B40;
  --steel:#7FA0BE;
  --steel-ink:#101418;
  --rust:#E2793F;
  --rust-ink:#161010;
  color-scheme: dark;
}

*{box-sizing:border-box;}
html{background:var(--bg);}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"IBM Plex Sans", system-ui, sans-serif;
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
@media (prefers-reduced-motion: no-preference){
  html{scroll-behavior:smooth;}
}
h1,h2,h3{
  font-family:"Big Shoulders Display","Arial Narrow",sans-serif;
  text-transform:uppercase;
  letter-spacing:0.01em;
  text-wrap:balance;
  margin:0;
  color:var(--ink);
}
.mono{
  font-family:"IBM Plex Mono", ui-monospace, monospace;
}
.eyebrow{
  font-family:"IBM Plex Mono", monospace;
  font-size:0.72rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--rust);
  font-weight:600;
}
a{color:inherit;}
img,svg{max-width:100%;}
.wrap{
  max-width:1120px;
  margin:0 auto;
  padding-inline:20px;
}
@media (min-width:720px){ .wrap{padding-inline:32px;} }

/* header */
header.site{
  position:sticky;
  top:env(safe-area-inset-top, 0px);
  z-index:20;
  background:var(--steel);
  color:var(--steel-ink);
  border-bottom:1px solid var(--line);
}
.header-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-block:14px;
}
.wordmark{
  font-family:"Big Shoulders Display", sans-serif;
  font-weight:800;
  font-size:1.5rem;
  letter-spacing:0.02em;
  color:var(--steel-ink);
  text-decoration:none;
  white-space:nowrap;
}
.wordmark span{color:var(--rust);}
nav.primary{
  display:none;
  gap:24px;
  font-size:0.92rem;
  font-weight:500;
}
nav.primary a{
  text-decoration:none;
  color:var(--steel-ink);
  opacity:0.88;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
nav.primary a:hover{opacity:1; border-bottom-color: currentColor;}
@media (min-width:860px){ nav.primary{display:flex;} }
.call-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--rust);
  color:var(--rust-ink);
  font-family:"IBM Plex Mono",monospace;
  font-weight:600;
  font-size:0.85rem;
  padding:9px 14px;
  border-radius:3px;
  text-decoration:none;
  white-space:nowrap;
}

section{padding-block:56px;}
@media (min-width:860px){ section{padding-block:88px;} }

/* hero */
.hero{
  display:grid;
  gap:36px;
  align-items:center;
  padding-block:48px;
}
@media (min-width:900px){
  .hero{grid-template-columns:1.1fr 0.9fr; padding-block:76px;}
}
.hero h1{
  font-size:clamp(2.4rem, 6vw, 4rem);
  line-height:0.98;
  margin-top:10px;
}
.hero h1 em{
  font-style:normal;
  color:var(--rust);
}
.hero p.lede{
  max-width:52ch;
  color:var(--ink-soft);
  font-size:1.08rem;
  margin-top:18px;
}
.hero-ctas{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:28px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 22px;
  border-radius:3px;
  font-weight:600;
  font-size:0.95rem;
  text-decoration:none;
  border:1px solid transparent;
  cursor:pointer;
}
.btn-primary{background:var(--rust); color:var(--rust-ink);}
.btn-outline{background:transparent; color:var(--ink); border-color:var(--ink-soft);}
.btn:focus-visible{outline:2px solid var(--steel); outline-offset:2px;}

.diagram-frame{
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:4px;
  padding:18px;
}
.diagram-frame svg{display:block; width:100%; height:auto;}
.diagram-caption{
  display:flex;
  justify-content:space-between;
  margin-top:10px;
  font-size:0.72rem;
  color:var(--ink-soft);
  letter-spacing:0.06em;
}

/* trust strip */
.trust{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding-block:26px;
}
.trust .wrap{
  display:flex;
  flex-wrap:wrap;
  gap:24px 36px;
  align-items:center;
  justify-content:space-between;
}
.trust-item{
  display:flex;
  align-items:baseline;
  gap:10px;
  font-size:0.95rem;
}
.trust-item .tag{
  font-family:"IBM Plex Mono",monospace;
  font-size:0.68rem;
  letter-spacing:0.1em;
  color:var(--rust);
  font-weight:600;
}

.section-head{
  display:flex;
  flex-direction:column;
  gap:8px;
  margin-bottom:36px;
  max-width:60ch;
}
.section-head h2{font-size:clamp(1.8rem, 4vw, 2.6rem);}
.aff-disclosure{
  font-family:"IBM Plex Mono",monospace;
  font-size:0.72rem;
  color:var(--ink-soft);
  letter-spacing:0.01em;
  margin-top:2px;
}

/* catalog */
.catalog-grid{
  display:grid;
  gap:20px;
  grid-template-columns:1fr;
}
@media (min-width:760px){ .catalog-grid{grid-template-columns:repeat(3,1fr);} }
.spec-card{
  position:relative;
  border:1px solid var(--line);
  background:var(--surface);
  padding:26px 22px 22px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.spec-card::before,.spec-card::after,
.spec-card .tick-br,.spec-card .tick-bl{
  content:"";
  position:absolute;
  width:10px;height:10px;
  border-color:var(--rust);
  border-style:solid;
  border-width:0;
}
.spec-card::before{top:-1px;left:-1px;border-top-width:2px;border-left-width:2px;}
.spec-card::after{top:-1px;right:-1px;border-top-width:2px;border-right-width:2px;}
.spec-num{
  font-family:"IBM Plex Mono",monospace;
  font-size:0.75rem;
  color:var(--ink-soft);
  letter-spacing:0.08em;
}
.spec-card h3{
  font-size:1.5rem;
}
.spec-list{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  flex-direction:column;
  gap:7px;
  font-size:0.92rem;
  color:var(--ink-soft);
}
.spec-list li{
  padding-left:14px;
  position:relative;
}
.spec-list li::before{
  content:"";
  position:absolute;
  left:0;top:0.55em;
  width:6px;height:1px;
  background:var(--rust);
}
.dealer-tag{
  align-self:flex-start;
  font-family:"IBM Plex Mono",monospace;
  font-size:0.68rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  background:var(--bg);
  border:1px solid var(--line);
  padding:4px 8px;
  color:var(--steel);
}
.spec-card .btn{margin-top:auto; align-self:flex-start;}
.catalog-note{
  margin-top:26px;
  font-size:0.92rem;
  color:var(--ink-soft);
  border-left:2px solid var(--rust);
  padding-left:14px;
}

/* how it works */
.steps{
  display:grid;
  gap:0;
  counter-reset: step;
}
@media (min-width:760px){ .steps{grid-template-columns:repeat(3,1fr);} }
.step{
  position:relative;
  padding:22px 20px;
  border-top:2px solid var(--line);
}
@media (min-width:760px){
  .step{border-top:none; border-left:2px solid var(--line);}
  .step:first-child{border-left:none;}
}
.step-num{
  font-family:"Big Shoulders Display",sans-serif;
  font-weight:800;
  font-size:2.2rem;
  color:var(--rust);
  line-height:1;
}
.step h3{font-size:1.15rem; margin-top:10px; text-transform:none; letter-spacing:0;}
.step p{color:var(--ink-soft); font-size:0.92rem; margin-top:8px;}

/* guides / blog preview */
.guides-grid{
  display:grid;
  gap:20px;
  grid-template-columns:1fr;
}
@media (min-width:760px){ .guides-grid{grid-template-columns:repeat(3,1fr);} }
.guide-card{
  display:flex;
  flex-direction:column;
  gap:12px;
  border:1px solid var(--line);
  background:var(--surface);
  padding:22px;
  text-decoration:none;
  color:var(--ink);
}
.guide-card:hover{border-color:var(--rust);}
.guide-card .eyebrow{font-size:0.68rem;}
.guide-card h3{font-size:1.2rem; text-transform:none; letter-spacing:0;}
.guide-card p{color:var(--ink-soft); font-size:0.9rem; margin:0;}
.guide-card .read-more{
  margin-top:auto;
  font-family:"IBM Plex Mono",monospace;
  font-size:0.78rem;
  color:var(--rust);
  font-weight:600;
}

/* long-form post pages */
.post-header{
  max-width:70ch;
  display:flex;
  flex-direction:column;
  gap:14px;
  margin-bottom:8px;
}
.post-header h1{
  font-size:clamp(2rem,5vw,3rem);
  line-height:1.02;
}
.post-meta{
  font-family:"IBM Plex Mono",monospace;
  font-size:0.78rem;
  color:var(--ink-soft);
}
.post-body{
  max-width:70ch;
  display:flex;
  flex-direction:column;
  gap:16px;
  font-size:1.02rem;
  color:var(--ink);
}
.post-body p{margin:0;}
.post-body h2{
  text-transform:none;
  letter-spacing:0;
  font-family:"IBM Plex Sans",sans-serif;
  font-weight:700;
  font-size:1.35rem;
  margin-top:12px;
}
.post-body ul{
  margin:0;
  padding-left:20px;
  color:var(--ink-soft);
  display:flex;
  flex-direction:column;
  gap:6px;
}
.post-body .btn{align-self:flex-start; margin-top:6px;}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-family:"IBM Plex Mono",monospace;
  font-size:0.82rem;
  text-decoration:none;
  color:var(--ink-soft);
  margin-bottom:26px;
}
.back-link:hover{color:var(--rust);}

/* contact */
.contact{
  background:var(--steel);
  color:var(--steel-ink);
}
.contact h2{color:var(--steel-ink);}
.contact-grid{
  display:grid;
  gap:32px;
}
@media (min-width:860px){ .contact-grid{grid-template-columns:1fr 1fr;} }
.phone-block{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.phone-number{
  font-family:"IBM Plex Mono",monospace;
  font-size:clamp(1.8rem, 5vw, 2.6rem);
  font-weight:600;
  letter-spacing:0.01em;
}
.copy-row{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}
.copy-btn{
  font-family:"IBM Plex Mono",monospace;
  font-size:0.8rem;
  background:transparent;
  color:var(--steel-ink);
  border:1px solid rgba(255,255,255,0.4);
  padding:7px 12px;
  border-radius:3px;
  cursor:pointer;
}
:root[data-theme="dark"] .copy-btn, @media (prefers-color-scheme:dark){ .copy-btn{border-color:rgba(0,0,0,0.35);} }
.service-area{
  font-size:0.9rem;
  opacity:0.86;
  max-width:44ch;
}
form.quote{
  display:flex;
  flex-direction:column;
  gap:12px;
  background:var(--surface);
  color:var(--ink);
  border:1px solid var(--line);
  padding:22px;
  border-radius:4px;
}
form.quote label{
  font-size:0.8rem;
  font-weight:600;
  display:flex;
  flex-direction:column;
  gap:6px;
}
form.quote input, form.quote textarea{
  font:inherit;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:3px;
  background:var(--bg);
  color:var(--ink);
}
form.quote textarea{resize:vertical; min-height:80px;}
form.quote .btn{align-self:flex-start;}
.quote-done{
  display:none;
  background:var(--surface);
  color:var(--ink);
  border:1px solid var(--line);
  padding:22px;
  border-radius:4px;
  font-size:0.95rem;
}
.quote-done strong{display:block; font-size:1.1rem; margin-bottom:6px;}

footer.site{
  padding-block:32px;
  border-top:1px solid var(--line);
}
.footer-row{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:16px;
  font-size:0.85rem;
  color:var(--ink-soft);
}
.footer-row .wordmark{font-size:1.1rem; color:var(--ink);}
.footer-row .wordmark span{color:var(--rust);}

/* legal */
.legal{
  background:var(--surface);
  border-top:1px solid var(--line);
}
.legal-copy{
  max-width:68ch;
  display:flex;
  flex-direction:column;
  gap:14px;
  color:var(--ink-soft);
  font-size:0.94rem;
}
.legal-copy h3{
  text-transform:none;
  letter-spacing:0;
  font-family:"IBM Plex Sans",sans-serif;
  font-weight:600;
  font-size:1.02rem;
  color:var(--ink);
  margin-top:10px;
}
.legal-copy strong{color:var(--ink);}
footer.site a.legal-link{
  text-decoration:underline;
  text-underline-offset:2px;
}