/* TheDevPro — design B "Blueprint"
   Ink navy base, one action color (logo orange), info blue, done green,
   condensed headlines, blueprint-grid dark sections. */
:root{
  --ink:#0F2742; --ink-2:#3A4C63; --muted:#6A7B90; --line:#D5DCE5; --line-2:#C9D3DF;
  --surface:#F4F6F9; --paper:#fff; --action:#C9551F; --action-hover:#B04717; --action-text:#B4501F;
  --info:#1D6FD1; --done:#1F7A45; --on-dark:#C3CFDD; --on-dark-2:#A9B8CB; --warm:#F6B08C;
  --display:"Barlow Semi Condensed","Arial Narrow",system-ui,sans-serif;
  --body:"Barlow",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,monospace;
  --wrap:1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--surface);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--ink)}
a:hover{color:var(--action-text)}
:focus-visible{outline:3px solid var(--info);outline-offset:2px}
h1,h2,h3{font-family:var(--display);font-weight:700;line-height:1.02;margin:0;letter-spacing:-.005em;text-wrap:balance}
h1{font-size:clamp(40px,5.6vw,68px)}
h2{font-size:clamp(30px,3.8vw,48px)}
h3{font-size:clamp(22px,2.2vw,28px)}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px}
.eyebrow{font-family:var(--display);font-weight:600;font-size:15px;letter-spacing:.12em;text-transform:uppercase;color:var(--action-text)}
.eyebrow.blue{color:var(--info)}
.lede{font-size:19px;color:var(--ink-2);max-width:620px}
.stack{display:flex;flex-direction:column;gap:20px}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.muted{color:var(--muted)}
.small{font-size:14px}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 12px;z-index:50}
.skip:focus{left:8px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:14px 24px;border-radius:4px;font-weight:600;text-decoration:none;border:1.5px solid transparent;font-size:16px;line-height:1.2;cursor:pointer;font-family:var(--body)}
.btn-primary{background:var(--action);color:#fff}
.btn-primary:hover{background:var(--action-hover);color:#fff}
.btn-outline{border-color:var(--ink);color:var(--ink);background:#fff}
.btn-outline:hover{background:var(--ink);color:#fff}
.btn-light{border-color:#fff;color:#fff;background:transparent}
.btn-light:hover{background:#fff;color:var(--ink)}
.link{font-weight:600;color:var(--action-text);text-decoration:none}
.link:hover{text-decoration:underline}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-top:14px;padding-bottom:14px}
.logo img{height:30px;width:auto}
.nav{display:flex;align-items:center;gap:28px;font-weight:500}
.nav a{text-decoration:none}
.nav a[aria-current="page"]{color:var(--action-text)}
.nav .btn{min-height:42px;padding:9px 18px}
.nav-toggle{display:none;width:44px;height:44px;border:0;border-radius:4px;background:var(--ink);color:#fff;align-items:center;justify-content:center;cursor:pointer}
.dropdown{position:relative}
.dropdown-menu{position:absolute;top:calc(100% + 14px);left:-16px;min-width:280px;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:0 12px 30px rgba(15,39,66,.12);padding:8px;display:none}
.dropdown:hover .dropdown-menu,.dropdown:focus-within .dropdown-menu{display:block}
.dropdown-menu a{display:block;padding:10px 12px;border-radius:4px}
.dropdown-menu a:hover{background:var(--surface)}
@media (max-width:980px){
  .nav-toggle{display:inline-flex}
  .nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 20px}
  .nav.open{display:flex}
  .nav>a,.dropdown>a{padding:12px 0;border-bottom:1px solid var(--surface)}
  .dropdown-menu{position:static;display:block;border:0;box-shadow:none;padding:0 0 0 12px;min-width:0}
  .nav .btn{margin-top:12px}
}

/* sections */
.sec{padding:96px 0}
.sec-white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-dark{position:relative;overflow:hidden;background-color:var(--ink);color:#fff;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:32px 32px}
.sec-dark .lede,.sec-dark p{color:var(--on-dark)}
.sec-dark .eyebrow{color:var(--warm)}
.sec-dark a:not(.btn){color:#fff}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.sec-head>div{max-width:680px;display:flex;flex-direction:column;gap:12px}
.band{background:var(--ink);color:#fff;font-family:var(--display);font-weight:600;font-size:18px;letter-spacing:.06em;text-transform:uppercase}
.band .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px 24px;padding-top:20px;padding-bottom:20px}
.band i{font-style:normal;color:var(--action)}

/* grids & cards */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g5{grid-template-columns:repeat(5,minmax(0,1fr))}
@media (max-width:980px){.g3,.g4,.g5{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.g2,.g3,.g4,.g5{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:28px;display:flex;flex-direction:column;gap:10px}
.card p{color:var(--ink-2)}
.card-link{text-decoration:none;transition:border-color .2s,transform .2s}
.card-link:hover{border-color:var(--ink);transform:translateY(-2px);color:var(--ink)}
.card .icon{width:44px;height:44px;flex:none}
.card-row{flex-direction:row;gap:22px}
.span-all{grid-column:1/-1}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{background:var(--surface);border:1px solid var(--line);border-radius:4px;padding:6px 10px;font-size:14px;font-weight:600}
ul.clean{margin:0;padding-left:20px;color:var(--ink-2);line-height:1.9}

/* flowing lines */
@keyframes flowh{to{background-position:24px 0}}
@keyframes flowv{to{background-position:0 24px}}
.wire-h{height:2px;background:repeating-linear-gradient(90deg,var(--ink) 0 12px,transparent 12px 24px);animation:flowh 1s linear infinite}
.wire-v{width:2px;background:repeating-linear-gradient(180deg,var(--ink) 0 12px,transparent 12px 24px);animation:flowv 1s linear infinite}
.sec-dark .wire-h{background:repeating-linear-gradient(90deg,rgba(255,255,255,.45) 0 12px,transparent 12px 24px)}
.sec-dark .wire-v{background:repeating-linear-gradient(180deg,rgba(255,255,255,.45) 0 12px,transparent 12px 24px)}
.paper-grid{background-color:#FBFCFD;background-image:linear-gradient(#E3E8EF 1px,transparent 1px),linear-gradient(90deg,#E3E8EF 1px,transparent 1px);background-size:24px 24px}

/* hero */
.hero{background:#fff;border-bottom:1px solid var(--line)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:56px;align-items:center;padding-top:80px;padding-bottom:80px}
@media (max-width:980px){.hero .wrap{grid-template-columns:1fr;padding-top:48px;padding-bottom:48px}}
.hero-note{font-size:14px;color:var(--ink-2)}

/* schematic (DWG) */
.dwg{position:relative;border:1.5px solid var(--ink);padding:28px;margin:0}
.dwg-cols{display:grid;grid-template-columns:1fr 44px 1.15fr 44px 1fr;align-items:center}
.dwg-col{display:flex;flex-direction:column;gap:14px}
.node{background:#fff;border:1.5px solid var(--ink);padding:10px 12px;font-weight:600;font-size:15px;line-height:1.25}
.node small{display:block;font-family:var(--display);font-size:11px;letter-spacing:.1em;color:var(--muted);font-weight:600}
.node.hub{background:var(--ink);color:#fff}
.node.hub small{color:var(--on-dark-2)}
.node.core{border:2px solid var(--action)}
.node.core small{color:var(--action-text)}
.dwg-tag{position:absolute;left:0;bottom:0;transform:translateY(100%);font-family:var(--display);font-size:12px;letter-spacing:.1em;color:var(--muted);padding-top:8px}
@media (max-width:640px){
  .dwg-cols{grid-template-columns:1fr;gap:0;justify-items:stretch}
  .dwg-cols .wire-h{width:2px;height:28px;justify-self:center;background:repeating-linear-gradient(180deg,var(--ink) 0 12px,transparent 12px 24px);animation:flowv 1s linear infinite}
}

/* blueprint background drawing on dark sections */
.bp{position:absolute;inset:0;pointer-events:none}
.bp .bn{position:absolute;border:1.5px solid rgba(255,255,255,.4);color:rgba(255,255,255,.72);background:var(--ink);font-family:var(--display);font-size:13px;letter-spacing:.1em;padding:9px 14px;white-space:nowrap}
.bp .bn.hot{border-color:var(--action);color:var(--warm)}
.bp .dm{position:absolute;width:52px;height:52px;border:1.5px solid var(--action);transform:rotate(45deg);background:var(--ink)}
.bp .dm-label{position:absolute;width:52px;text-align:center;font-family:var(--display);font-size:13px;color:var(--warm)}
.bp .wire-h,.bp .wire-v{position:absolute}
.bp .tag{position:absolute;right:24px;bottom:16px;font-family:var(--display);font-size:12px;letter-spacing:.1em;color:rgba(255,255,255,.45)}
.sec-dark .wrap{position:relative}
.dark-hero .wrap{padding-top:88px;padding-bottom:104px}
.dark-hero .copy{max-width:600px;display:flex;flex-direction:column;gap:22px}
@media (max-width:1100px){.bp{opacity:.35}}
@media (max-width:760px){.bp{display:none}.dark-hero .wrap{padding-top:48px;padding-bottom:56px}}

/* before / after */
.ba{display:grid;grid-template-columns:120px 1fr;gap:22px 16px;align-items:center}
.ba-track{position:relative}
.ba-line{position:absolute;left:0;right:0;top:22px;height:2px}
.ba-line.manual{background:repeating-linear-gradient(90deg,#B5C0CE 0 8px,transparent 8px 14px)}
.ba-line.auto{right:40%;background:var(--ink)}
.sec-dark .ba-line.manual{background:repeating-linear-gradient(90deg,rgba(255,255,255,.3) 0 8px,transparent 8px 14px)}
.sec-dark .ba-line.auto{background:#fff}
@keyframes travel{from{left:0}to{left:calc(100% - 10px)}}
.dot{position:absolute;top:-4px;width:10px;height:10px;border-radius:50%}
.dot.slow{background:#8A97A8;animation:travel 12s linear infinite}
.dot.fast{background:var(--action);animation:travel 2.4s linear infinite}
.ba-steps{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;font-size:14px}
.ba-steps span{padding:11px;border:1px solid var(--line-2);background:var(--surface)}
.sec-dark .ba-steps span{border-color:rgba(255,255,255,.3);background:var(--ink);color:var(--on-dark)}
.ba-steps .s-strong{border:1.5px solid var(--ink);background:#fff;font-weight:600}
.ba-steps .s-ai{background:var(--ink);color:#fff;font-weight:700;border-color:var(--ink)}
.ba-steps .s-ok{border:2px solid var(--action);background:#fff;font-weight:600}
.sec-dark .ba-steps .s-strong{border-color:#fff;color:#fff;background:var(--ink)}
.sec-dark .ba-steps .s-ai{background:#fff;color:var(--ink)}
.sec-dark .ba-steps .s-ok{background:var(--ink);color:#fff}
.ba-result{grid-column:span 2;align-self:center;font-family:var(--display);font-size:28px;font-weight:700;color:var(--action-text);border:0!important;background:none!important;padding:0!important}
.sec-dark .ba-result{color:var(--warm)!important}
.ba-label{font-weight:700;color:var(--muted)}
.ba-label.ai{color:var(--action-text)}
.sec-dark .ba-label{color:var(--on-dark-2)}.sec-dark .ba-label.ai{color:var(--warm)}
@media (max-width:760px){
  .ba{grid-template-columns:1fr}
  .ba-steps{grid-template-columns:1fr 1fr}
  .ba-line{display:none}
  .ba-result{grid-column:1/-1}
}

/* steps that light up in turn */
@keyframes lit{0%,100%{border-color:var(--line);box-shadow:none}5%{border-color:var(--action);box-shadow:0 0 0 3px rgba(201,85,31,.18)}22%{border-color:var(--line);box-shadow:none}}
.lit>*{animation:lit 10s linear infinite}
.lit>*:nth-child(2){animation-delay:2.5s}.lit>*:nth-child(3){animation-delay:5s}.lit>*:nth-child(4){animation-delay:7.5s}
.lit5>*{animation:lit 10s linear infinite}
.lit5>*:nth-child(2){animation-delay:2s}.lit5>*:nth-child(3){animation-delay:4s}.lit5>*:nth-child(4){animation-delay:6s}.lit5>*:nth-child(5){animation-delay:8s}
.num{width:44px;height:44px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-family:var(--display);font-size:20px;font-weight:700;flex:none}
.num.hot{background:var(--action)}
.step-mini{background:var(--surface);border-radius:6px;padding:12px;font-size:14px;display:flex;flex-direction:column;gap:6px}
.step-mini .slot{border:1px solid var(--line);background:#fff;border-radius:4px;padding:6px 8px}
.step-mini .slot.pick{border:2px solid var(--info);font-weight:600}
.qb-btn{background:var(--done);color:#fff;border-radius:4px;padding:7px 8px;text-align:center;font-weight:700}
@keyframes pop{0%,10%{opacity:0;transform:scale(.6)}16%,100%{opacity:1;transform:none}}
.ck{color:var(--done);font-weight:700;float:right;display:inline-block;animation:pop 10s ease-out infinite}
.url{background:#fff;border:1px solid var(--line);border-radius:4px;padding:5px 8px;color:var(--muted);font-family:var(--mono);font-size:12px}
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.tiles span{background:#fff;border:1px solid var(--line);border-radius:4px;padding:6px}
.tiles span:first-child{background:var(--ink);color:#fff;border-color:var(--ink)}
@keyframes chip{0%,30%{background:#EEF2F6;color:var(--ink-2)}34%,64%{background:#E7F0FB;color:var(--info)}68%,100%{background:#E6F4EC;color:var(--done)}}
.status{border-radius:4px;padding:2px 8px;font-weight:700;font-size:12px;animation:chip 6s linear infinite}

/* chat */
@keyframes appear{0%,8%{opacity:0;transform:translateY(6px)}14%,100%{opacity:1;transform:none}}
.chat{display:flex;flex-direction:column;gap:10px;font-size:15px;line-height:1.5}
.bubble{max-width:82%;border-radius:8px;padding:10px 12px;animation:appear 9s ease-out infinite}
.bubble.in{align-self:flex-start;background:#EEF2F6}
.bubble.out{align-self:flex-end;background:var(--ink);color:#fff}
.chat .bubble:nth-child(3){animation-delay:1.2s}.chat .bubble:nth-child(4){animation-delay:2.4s}.chat .bubble:nth-child(5){animation-delay:3.6s}
.chat-meta{font-family:var(--display);font-size:13px;letter-spacing:.1em;color:var(--muted)}

/* stats */
.stat b{display:block;font-family:var(--display);font-size:32px;line-height:1.05}
.stat span{color:var(--ink-2);font-size:15px}

/* phone mock */
.phone{width:210px;background:#fff;border:2px solid var(--ink);border-radius:30px;padding:22px 14px;display:flex;flex-direction:column;gap:10px;font-size:13px;min-height:400px}
.phone .job{border:1px solid var(--line);border-radius:6px;padding:10px}
.phone .job.now{border:2px solid var(--action)}
.phone .go{margin-top:auto;background:var(--ink);color:#fff;border-radius:6px;padding:12px;text-align:center;font-weight:600}

/* calculator */
.calc{display:grid;grid-template-columns:1.2fr 1fr;border:1.5px solid var(--ink);background:#fff}
.calc .in{padding:32px;display:flex;flex-direction:column;gap:22px}
.calc label{display:flex;flex-direction:column;gap:8px;font-weight:600}
.calc input[type=range]{accent-color:var(--action);width:100%;height:28px}
.calc .out{padding:32px;display:flex;flex-direction:column;justify-content:center;gap:18px}
.calc .big{font-family:var(--display);font-size:64px;font-weight:700;line-height:1;color:var(--warm)}
.calc .mid{font-family:var(--display);font-size:40px;font-weight:700;line-height:1}
@media (max-width:760px){.calc{grid-template-columns:1fr}.calc .big{font-size:48px}}

/* FAQ */
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{font-weight:700;font-size:18px;cursor:pointer}
details p{margin-top:10px;color:var(--ink-2)}

/* forms */
.form{display:flex;flex-direction:column;gap:14px}
.form label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:15px}
.form input,.form select,.form textarea{font:inherit;font-weight:400;padding:13px;border:1.5px solid var(--line-2);border-radius:4px;background:#fff;color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--info);outline:none}

/* footer */
.site-footer{background:#fff;border-top:1px solid var(--line)}
.site-footer .wrap{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;padding-top:48px;padding-bottom:48px;font-size:15px}
.site-footer h2{font-family:var(--body);font-size:15px;font-weight:700;margin-bottom:10px}
.site-footer a{display:block;text-decoration:none;color:var(--ink-2);padding:4px 0}
@media (max-width:760px){.site-footer .wrap{grid-template-columns:1fr 1fr}.site-footer .wrap>div:first-child{grid-column:1/-1}}

/* mobile quick-contact bar */
.qbar{display:none}
@media (max-width:760px){
  .band i{display:none}
  .band .wrap{justify-content:flex-start;gap:6px 18px;font-size:15px}
  .qbar{display:grid;grid-template-columns:repeat(3,1fr);position:fixed;left:0;right:0;bottom:0;z-index:30;height:60px;background:#fff;border-top:1px solid var(--line);box-shadow:0 -4px 14px rgba(15,39,66,.08);font-weight:700;font-size:15px}
  .qbar a{display:flex;align-items:center;justify-content:center;text-decoration:none}
  .qbar a:first-child{color:var(--done)}
  .qbar a:nth-child(2){border-left:1px solid var(--line);border-right:1px solid var(--line)}
  .qbar a:last-child{background:var(--action);color:#fff}
  body{padding-bottom:60px}
  .wrap{padding:0 18px}
  .sec{padding:56px 0}
}

/* scroll reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}