/* ConstructDesk — production stylesheet */

:root{
  --ink-navy:#0A1420;
  --blueprint-blue:#295C8F;
  --blueprint-blue-hover:#23507C;
  --steel-blue:#5D8AA8;
  --paper:#F6F7F9;
  --mist:#EDF0F3;
  --slate:#4B5563;
  --cool-gray:#8A94A0;
  --border:#D7DDE3;
  --on-dark-1:rgba(246,247,249,0.65);
  --on-dark-2:rgba(246,247,249,0.5);
  --on-dark-3:rgba(246,247,249,0.4);
  --on-dark-4:rgba(246,247,249,0.35);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-navy);
  font-family:'Inter',sans-serif;
  letter-spacing:-0.01em;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
::selection{background:var(--blueprint-blue);color:var(--paper)}
button, input, select, textarea{font-family:inherit}

.section{padding:160px 48px}

/* Nav */
.nav{
  position:fixed;top:0;left:0;right:0;width:100%;z-index:50;
  display:flex;align-items:center;gap:12px;
  padding:26px 32px;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .3s ease, padding .3s ease, border-color .3s ease;
}
.nav.solid{
  padding:16px 32px;
  background:rgba(10,20,32,0.94);
  border-bottom:1px solid rgba(255,255,255,0.08);
  backdrop-filter:blur(12px);
}
.nav-logo{flex:1;min-width:0;font-size:16px;font-weight:800;color:var(--paper);letter-spacing:-0.02em;white-space:nowrap}
.nav-links{display:flex;gap:16px;flex:none;white-space:nowrap}
.nav-link{font-size:13px;font-weight:500;color:var(--on-dark-1);white-space:nowrap;border-bottom:2px solid transparent;padding-bottom:2px;transition:color .2s ease, border-color .2s ease}
.nav-link:hover{color:var(--paper)}
.nav-link.active{font-weight:700;color:var(--paper);border-bottom-color:var(--blueprint-blue)}
.nav-cta-wrap{flex:1;min-width:0;display:flex;justify-content:flex-end}

/* Buttons */
.btn{display:inline-block;border-radius:4px;font-weight:700;font-size:15px;padding:16px 32px;text-align:center;transition:background .2s ease, border-color .2s ease;cursor:pointer;border:none}
.btn-primary{background:var(--blueprint-blue);color:var(--paper)}
.btn-primary:hover{background:var(--blueprint-blue-hover)}
.btn-outline{border:1px solid rgba(246,247,249,0.28);color:var(--paper);font-weight:600}
.btn-outline:hover{border-color:rgba(246,247,249,0.5)}
.btn-outline-dark{border:1px solid var(--border);color:var(--ink-navy);font-weight:600;padding:15px 30px;font-size:14.5px}
.btn-outline-dark:hover{border-color:var(--blueprint-blue)}
.btn-small{font-size:12.5px;font-weight:600;padding:9px 16px;margin-left:12px;flex-shrink:0}
.btn-full{width:100%}

.eyebrow{font-size:12.5px;letter-spacing:0.18em;font-weight:700;margin-bottom:24px}
.eyebrow-light{color:var(--steel-blue);text-align:center;margin-bottom:32px}
.eyebrow-accent{color:var(--steel-blue)}
.eyebrow-accent-dark{color:var(--blueprint-blue)}
.eyebrow.center{text-align:center}

.rule{height:2px;width:48px;background:var(--blueprint-blue);margin:20px 0 16px}
.rule-center{margin-left:auto;margin-right:auto;margin-bottom:24px}

.body-lg{font-size:17px;line-height:1.65;color:var(--slate);margin:0 auto;max-width:560px}
.body-md{font-size:16px;line-height:1.7;color:var(--slate);margin:0}
.body-md.on-dark{color:var(--on-dark-1)}

h1,h2{font-weight:800;letter-spacing:-0.02em;margin:0}

/* Reveal on scroll */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease, transform .7s ease}
.reveal.in-view{opacity:1;transform:translateY(0)}
.reveal-line{width:0;transition:width .9s ease .2s}
.reveal-line.in-view{width:48px}

/* Hero */
.hero{background:var(--ink-navy);color:var(--paper);padding:180px 48px 160px;text-align:center}
.hero-inner{max-width:900px;margin:0 auto}
.hero h1{font-size:clamp(38px,5.5vw,72px);line-height:1.08;letter-spacing:-0.03em;margin-bottom:28px}
.hero-sub{font-size:18px;line-height:1.6;color:var(--on-dark-1);max-width:560px;margin:0 auto 44px;font-weight:400}
.hero-ctas{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-note{font-size:13.5px;color:var(--on-dark-3);margin-top:36px}
.hero-stats{max-width:1100px;margin:80px auto 0;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:rgba(255,255,255,0.08);border-top:1px solid rgba(255,255,255,0.08);border-bottom:1px solid rgba(255,255,255,0.08)}
.hero-stat{background:var(--ink-navy);padding:24px 0;text-align:center}
.hero-stat-value{font-size:26px;font-weight:800;letter-spacing:-0.02em}
.hero-stat-label{font-size:12.5px;color:var(--on-dark-2);margin-top:4px}

/* Reality / Problem */
.reality{text-align:center}
.reality-inner{max-width:760px;margin:0 auto}
.reality h2{font-size:clamp(28px,3.6vw,44px);line-height:1.16}

/* Challenge */
.challenge{background:var(--mist);padding:160px 0}
.challenge-head{max-width:640px;margin:0 auto 56px;padding:0 48px}
.challenge-head h2{font-size:clamp(26px,3.2vw,40px);line-height:1.18}
.challenge-row{display:flex;gap:48px;overflow-x:auto;padding:0 48px}
.challenge-card{background:var(--mist);padding:32px 28px;min-width:230px;flex:none;font-size:16px;font-weight:600;line-height:1.4}

/* Solution */
.solution{background:var(--ink-navy);color:var(--paper)}
.solution-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:start}
.solution-copy h2{font-size:clamp(26px,3vw,38px);line-height:1.2;margin-bottom:20px}
.solution-panels{display:grid;gap:1px;background:rgba(255,255,255,0.1)}
.solution-panel{background:var(--ink-navy);padding:24px 0}
.panel-num{font-size:12px;color:var(--on-dark-3);font-weight:600;margin-bottom:8px}
.panel-label{font-size:18px;font-weight:800;margin-bottom:8px}
.panel-body{font-size:14px;line-height:1.6;color:var(--on-dark-2)}

/* Outcomes */
.outcomes-inner{max-width:900px;margin:0 auto}
.outcome-row{padding:36px 0;border-bottom:1px solid var(--border);display:flex;align-items:baseline;gap:32px}
.outcome-row-last{border-bottom:none}
.outcome-n{font-size:14px;color:var(--cool-gray);font-weight:600;flex:none;width:32px}
.outcome-text{font-size:28px;font-weight:700;letter-spacing:-0.02em;line-height:1.25}

.jump-link-wrap{padding:0 48px 140px;text-align:center;background:var(--paper)}
.jump-link{font-size:15px;font-weight:700;color:var(--ink-navy);border-bottom:2px solid var(--blueprint-blue);padding-bottom:3px;display:inline-block}
.jump-link.small{font-size:13.5px;padding-bottom:2px}

/* Operating model */
.operating{background:var(--mist)}
.operating-inner{max-width:1100px;margin:0 auto}
.operating h2{font-size:clamp(28px,3.4vw,44px);line-height:1.16;max-width:760px}
.operating-lead{max-width:700px;margin-bottom:20px}
.parent-note{font-size:12px;color:var(--cool-gray);margin-bottom:56px;max-width:700px}
.parent-note.on-dark{color:var(--on-dark-3);margin-bottom:16px;max-width:none}

.compare-label{font-size:13.5px;color:var(--cool-gray);font-weight:600;margin-bottom:20px}
.compare{position:relative;height:300px;border-radius:4px;overflow:hidden;cursor:ew-resize;user-select:none;border:1px solid var(--border);margin-bottom:72px}
.compare-side{position:absolute;inset:0;padding:36px;display:flex;flex-direction:column;justify-content:center;gap:16px}
.compare-left{background:var(--paper)}
.compare-right{background:var(--ink-navy);color:var(--paper);clip-path:inset(0 0 0 50%)}
.compare-heading{font-size:12.5px;letter-spacing:0.12em;color:var(--cool-gray);font-weight:700}
.compare-heading-accent{color:var(--steel-blue)}
.compare-item{font-size:15.5px;color:var(--slate);font-weight:500}
.compare-item-strong{font-weight:700;color:var(--paper)}
.compare-handle{position:absolute;top:0;bottom:0;left:50%;width:2px;background:var(--blueprint-blue);pointer-events:none}
.compare-handle-btn{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:40px;border-radius:50%;background:var(--blueprint-blue);display:flex;align-items:center;justify-content:center;color:var(--paper);font-weight:800;font-size:12px}

.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;margin-bottom:64px}
.benefit-title{font-size:16px;font-weight:700;margin-bottom:10px}
.benefit-body{font-size:13.5px;line-height:1.6;color:var(--slate)}

.quote{border-left:2px solid var(--blueprint-blue);padding:4px 0 4px 28px;margin:0 0 56px;font-size:20px;line-height:1.5;font-weight:600;letter-spacing:-0.01em;max-width:640px}

.cta-row{display:flex;gap:14px;flex-wrap:wrap}

/* Proof */
.proof{background:var(--ink-navy);color:var(--paper)}
.proof-inner{max-width:1100px;margin:0 auto}
.proof-headline{font-size:clamp(24px,3vw,36px);line-height:1.22;margin:0 0 56px;max-width:760px;font-weight:800;letter-spacing:-0.02em}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,0.1)}
.stat-cell{background:var(--ink-navy);padding:0 32px 0 0}
.stat-value{font-size:40px;font-weight:800;letter-spacing:-0.02em;margin-bottom:10px;font-variant-numeric:tabular-nums}
.stat-label{font-size:13.5px;color:var(--on-dark-2)}

/* Methodology */
.methodology-inner{max-width:1100px;margin:0 auto}
.methodology-inner h2{font-size:clamp(26px,3.2vw,40px);line-height:1.18;max-width:640px}
.method-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;margin-top:56px}
.method-n{font-size:14px;font-weight:700;color:var(--blueprint-blue);margin-bottom:14px}
.method-hr{height:2px;background:var(--border);margin-bottom:18px}
.method-title{font-size:17px;font-weight:800;letter-spacing:-0.01em;margin-bottom:8px}
.method-body{font-size:13.5px;line-height:1.55;color:var(--slate)}

/* Engagement */
.engagement{background:var(--mist)}
.engagement-inner{max-width:1100px;margin:0 auto}
.engagement-inner h2{font-size:clamp(26px,3.2vw,40px);line-height:1.18;margin-bottom:56px;max-width:640px}
.engagement-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.engagement-title{font-size:19px;font-weight:800;letter-spacing:-0.01em;margin-bottom:14px}
.engagement-body{font-size:14.5px;line-height:1.65;color:var(--slate);margin-bottom:20px}

/* FAQ */
.faq-inner{max-width:820px;margin:0 auto}
.faq-inner h2{font-size:clamp(28px,3.4vw,42px);line-height:1.18;margin-bottom:16px}
.faq-sub{max-width:560px;margin-bottom:72px}
.faq-group{margin-bottom:56px}
.faq-cat{font-size:12px;letter-spacing:0.14em;color:var(--cool-gray);font-weight:700;margin-bottom:8px}
.faq-item{}
.faq-q{width:100%;background:none;border:none;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:22px 0;cursor:pointer;font-size:17px;font-weight:600;letter-spacing:-0.01em;color:var(--ink-navy);outline:none}
.faq-icon{display:inline-block;transition:transform .3s ease;font-size:20px;color:var(--blueprint-blue);flex:none}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-a-wrap{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s cubic-bezier(.4,0,.2,1)}
.faq-a-wrap.open{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a{font-size:14.5px;line-height:1.65;color:var(--slate);margin:0 0 26px;max-width:680px}

/* Contact */
.contact{background:var(--ink-navy);color:var(--paper)}
.contact-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:0.9fr 1.1fr;gap:96px;align-items:start}
.contact-left h2{font-size:clamp(34px,4.5vw,56px);line-height:1.1;letter-spacing:-0.03em;margin-bottom:24px}
.contact-lead{max-width:440px;margin-bottom:48px}
.contact-facts{display:flex;flex-direction:column;gap:20px}
.contact-fact-label{font-size:11.5px;letter-spacing:0.1em;color:var(--on-dark-3);font-weight:600;margin-bottom:4px}
.contact-fact-value{font-size:15px;color:var(--paper)}
.contact-fact-link:hover{color:var(--steel-blue)}

.contact-form-card{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.08);border-radius:8px;padding:40px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}
.form-field label{font-size:12px;color:rgba(246,247,249,0.5);display:block;margin-bottom:8px}
.form-field input,.form-field select,.form-field textarea{
  width:100%;background:transparent;border:none;border-bottom:1px solid rgba(255,255,255,0.2);
  color:var(--paper);font-size:14.5px;padding:8px 0;outline:none;
}
.form-field select{background:var(--ink-navy)}
.form-field textarea{resize:none}
.form-field-full{margin-bottom:24px}
.form-note{font-size:12.5px;color:var(--on-dark-3);margin-top:16px;text-align:center}

/* Footer */
.footer{background:var(--ink-navy);color:var(--paper);padding:64px 48px 40px;border-top:1px solid rgba(255,255,255,0.08)}
.footer-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:1.2fr 0.8fr 0.8fr 0.8fr;gap:48px}
.footer-logo{font-size:16px;font-weight:800;letter-spacing:-0.02em;margin-bottom:12px}
.footer-tagline{font-size:13.5px;line-height:1.6;color:var(--on-dark-1);max-width:280px}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-heading{font-size:12px;letter-spacing:0.1em;color:var(--on-dark-3);font-weight:600;margin-bottom:6px}
.footer-col a,.footer-static{font-size:13.5px;color:var(--on-dark-1)}
.footer-col a:hover{color:var(--paper)}
.footer-muted{color:var(--on-dark-3)}
.footer-bottom{max-width:1100px;margin:48px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,0.08);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-copyright{font-size:12px;color:var(--on-dark-4)}
.footer-legal{font-size:11.5px;color:rgba(246,247,249,0.3);margin-top:4px}
.footer-brand-statement{font-size:12px;color:var(--on-dark-4)}

/* Responsive */
@media (max-width:900px){
  .nav-links{display:none}
  .solution-inner,.contact-inner{grid-template-columns:1fr;gap:48px}
  .benefit-grid,.stat-grid,.method-grid,.engagement-grid{grid-template-columns:repeat(2,1fr)}
  .hero-stats{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:96px 24px}
}
@media (max-width:600px){
  .benefit-grid,.stat-grid,.method-grid,.engagement-grid,.form-row{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
}