/* ==========================================================================
   Longspan — split-hero editorial design system.
   ========================================================================== */
:root{
  --primary:#1E3A5F;
  --primary-d:#101F33;
  --accent:#2F80C4;
  --accent-d:#215F94;
  --ink:#15202B;
  --muted:#5A6B7A;
  --line:#E3E8ED;
  --line-strong:#C8D2DB;
  --bg:#ffffff;
  --bg-alt:#F5F8FA;
  --head:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  --body:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  --wrap:1240px;
  --gutter:32px;
  --r:3px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--body);color:var(--ink);background:var(--bg);
  line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-d)}
h1,h2,h3,h4{font-family:var(--head);color:var(--primary);font-weight:700;
  letter-spacing:-.028em;line-height:1.1;margin:0 0 .5em}
p{margin:0 0 1.1em}
.container{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.section{padding:104px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.kicker{text-transform:uppercase;letter-spacing:.2em;font-size:.71rem;font-weight:700;
  color:var(--muted);margin:0 0 20px}
.lead{font-size:1.2rem;line-height:1.6;color:var(--muted)}
.narrow{max-width:780px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--head);font-weight:600;
  font-size:.95rem;border-radius:var(--r);padding:14px 26px;cursor:pointer;
  border:1.5px solid transparent;transition:background .16s,border-color .16s,color .16s}
.btn--primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn--primary:hover{background:var(--accent-d);border-color:var(--accent-d);color:#fff}
.btn--ghost{border-color:var(--line-strong);color:var(--primary);background:transparent}
.btn--ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn--light{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.btn--light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn--lg{padding:16px 30px;font-size:1rem}
.btn--block{display:flex;width:100%;justify-content:center}

/* ---------- header ---------- */
.nav{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;
  max-width:var(--wrap);margin:0 auto;padding:18px var(--gutter)}
.brand{display:flex;align-items:center;font-family:var(--head);font-weight:800;
  color:var(--primary);letter-spacing:.01em;line-height:1}
.brandtext{font-size:1.9rem}
.brandtext-b{color:var(--muted)}
.nav-right{display:flex;align-items:center;gap:32px}
.nav-links{display:flex;gap:28px;list-style:none;margin:0;padding:0;align-items:center}
.nav-links a{color:var(--ink);font-weight:500;font-size:.94rem;position:relative;padding:4px 0}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s}
.nav-links a:hover,.nav-links a[aria-current]{color:var(--primary)}
.nav-links a:hover::after,.nav-links a[aria-current]::after{transform:scaleX(1)}
.nav-toggle{display:none;background:none;border:0;font-size:1.5rem;color:var(--primary);cursor:pointer}

/* ---------- split hero ---------- */
.hero{display:grid;grid-template-columns:1.02fr 1fr;align-items:stretch;
  border-bottom:1px solid var(--line);background:#fff}
.hero-body{display:flex;flex-direction:column;justify-content:center;
  padding:104px 64px 104px max(var(--gutter),calc((100vw - var(--wrap))/2 + var(--gutter)));
  min-height:min(78vh,720px)}
.hero h1{font-size:clamp(2.5rem,4.6vw,4rem);letter-spacing:-.04em;max-width:15ch;margin:0 0 24px}
.hero p.lead{max-width:46ch;margin:0 0 36px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-media{background:var(--bg-alt) center/cover no-repeat;min-height:420px}

/* credentials strip under hero */
.credbar{background:var(--bg-alt);border-bottom:1px solid var(--line)}
.credbar .container{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.cred{padding:24px 28px 24px 0;border-left:1px solid var(--line);padding-left:28px}
.cred:first-child{border-left:0;padding-left:0}
.cred b{display:block;font-family:var(--head);font-weight:700;font-size:1rem;color:var(--primary);letter-spacing:-.01em}
.cred span{display:block;font-size:.85rem;color:var(--muted);margin-top:3px}

/* ---------- inner page header ---------- */
.pagehead{padding:84px 0 52px;background:#fff}
.pagehead h1{font-size:clamp(2.1rem,4.2vw,3.2rem);max-width:19ch;margin:0 0 18px}
.pagehead p{max-width:60ch;font-size:1.16rem;color:var(--muted);margin:0}
.pagestrip{height:clamp(240px,34vw,400px);background:var(--bg-alt) center/cover no-repeat;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- editorial split ---------- */
.split{display:grid;grid-template-columns:1fr 1.15fr;gap:72px;align-items:start}
.split h2{font-size:clamp(1.9rem,3.2vw,2.7rem);margin:0}
.split .split-body p:last-child{margin-bottom:0}

/* ---------- alternating rows ---------- */
.row{display:grid;grid-template-columns:1.05fr 1fr;gap:64px;align-items:center;
  padding:76px 0;border-top:1px solid var(--line)}
.row:first-of-type{border-top:0;padding-top:8px}
.row--flip .row-media{order:2}
.row-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt)}
.row-media img{width:100%;height:100%;object-fit:cover}
.row-num{font-family:var(--head);font-weight:700;font-size:.78rem;letter-spacing:.18em;
  color:var(--accent);margin:0 0 14px;text-transform:uppercase}
.row h3{font-size:clamp(1.5rem,2.4vw,2rem);margin:0 0 14px}
.row p{color:var(--muted);margin:0 0 18px}
.rlist{list-style:none;padding:0;margin:0}
.rlist li{position:relative;padding:9px 0 9px 26px;border-top:1px solid var(--line);font-size:.97rem}
.rlist li:first-child{border-top:0}
.rlist li::before{content:"";position:absolute;left:2px;top:16px;width:7px;height:7px;
  border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(-45deg)}

/* ---------- full-width photo band ---------- */
.band{position:relative;min-height:440px;display:flex;align-items:center;
  background:var(--primary-d) center/cover no-repeat;color:#fff}
.band::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,22,36,.88),rgba(12,22,36,.45))}
.band .container{position:relative;z-index:2;padding-top:76px;padding-bottom:76px}
.band .kicker{color:#9FB6CC}
.band h2{color:#fff;font-size:clamp(1.8rem,3.4vw,2.8rem);max-width:20ch;margin:0 0 18px}
.band p{color:#D7E2ED;max-width:56ch;font-size:1.1rem;margin:0 0 26px}

/* ---------- hairline feature grid ---------- */
.features{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line)}
.feature{padding:38px 34px 38px 0;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature:nth-child(3n){border-right:0;padding-right:0}
.feature h3{font-size:1.1rem;margin:0 0 10px}
.feature p{color:var(--muted);margin:0;font-size:.96rem}
.feature-n{font-family:var(--head);font-weight:700;font-size:.74rem;letter-spacing:.18em;
  color:var(--accent);display:block;margin-bottom:12px}

/* ---------- sectors ---------- */
.sectors{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line)}
.sector{background:#fff;padding:26px 22px;font-family:var(--head);font-weight:600;
  color:var(--primary);font-size:.98rem;display:flex;align-items:center;min-height:88px}

/* ---------- gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.gallery img{aspect-ratio:4/3;object-fit:cover;width:100%}
.gallery figure{margin:0}
.gallery figcaption{font-size:.86rem;color:var(--muted);margin-top:10px}

/* ---------- CTA ---------- */
.cta{background:var(--primary-d);color:#fff;border-top:3px solid var(--accent)}
.cta .container{padding-top:80px;padding-bottom:80px;display:grid;
  grid-template-columns:1.3fr auto;gap:40px;align-items:center}
.cta h2{color:#fff;font-size:clamp(1.7rem,3vw,2.4rem);margin:0 0 10px}
.cta p{color:#C6D4E2;margin:0;font-size:1.08rem}

/* ---------- forms ---------- */
label{display:block;font-weight:600;font-size:.88rem;margin:18px 0 7px;color:var(--primary)}
input,textarea,select{width:100%;padding:13px 15px;border:1px solid var(--line-strong);
  border-radius:var(--r);font:inherit;background:#fff;color:var(--ink)}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(47,128,196,.14)}
textarea{min-height:150px;resize:vertical}
.req{color:#B23A2F}
.form-success{display:none;background:#E9F6EE;border:1px solid #BFE4CB;color:#1C6B3A;
  border-radius:var(--r);padding:13px 15px;margin-bottom:16px}
.form-success.show{display:block}
.contact-grid{display:grid;grid-template-columns:1fr 1.3fr;gap:64px;align-items:start}
.formcard{border:1px solid var(--line);padding:32px 34px;background:#fff}
.ci-item{padding:18px 0;border-bottom:1px solid var(--line)}
.ci-item:first-child{padding-top:0}
.ci-item h4{margin:0 0 5px;font-size:.76rem;text-transform:uppercase;letter-spacing:.14em;color:var(--muted)}
.ci-item p,.ci-item a{margin:0;font-size:1.02rem;font-weight:500;color:var(--ink)}
.ci-item a{color:var(--accent)}

/* ---------- prose / faq ---------- */
.prose h2{margin-top:1.8em;font-size:1.35rem}
.prose h3{margin-top:1.3em;font-size:1.08rem;color:var(--ink)}
.prose ul{padding-left:20px}
.faq{border-top:1px solid var(--line)}
.faq:last-of-type{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-family:var(--head);font-weight:600;color:var(--primary);
  padding:22px 0;list-style:none;display:flex;justify-content:space-between;gap:20px;
  font-size:1.06rem;letter-spacing:-.01em}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font-weight:600;font-size:1.3rem;line-height:1}
.faq[open] summary::after{content:"\2013"}
.faq .faq-body{padding:0 0 24px;color:var(--muted);max-width:75ch}

/* ---------- footer ---------- */
.footer{background:var(--primary-d);color:#B9C8D6;padding:72px 0 32px;border-top:3px solid var(--accent)}
.footer a{color:#E4EDF5}
.footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:2.2fr 1fr 1fr;gap:48px}
.footer .brandtext{font-size:1.7rem;color:#fff;display:inline-block;margin-bottom:14px}
.footer .brandtext-b{color:#8FA6BA}
.footer h4{color:#fff;font-size:.76rem;text-transform:uppercase;letter-spacing:.16em;margin-bottom:18px}
.footer p{color:#9FB1C2;font-size:.95rem}
.footer ul{list-style:none;padding:0;margin:0}
.footer li{margin:10px 0}
.footer li a{font-size:.95rem}
.footer-base{border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding-top:24px;
  font-size:.83rem;color:#7E93A6;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* ---------- responsive ---------- */
@media(max-width:1000px){
  .hero{grid-template-columns:1fr}
  .hero-body{padding:72px var(--gutter) 56px;min-height:auto;order:1}
  .hero-media{order:2;min-height:340px}
  .split,.row,.contact-grid{grid-template-columns:1fr;gap:36px}
  .row--flip .row-media{order:0}
  .features{grid-template-columns:1fr 1fr}
  .feature:nth-child(3n){border-right:1px solid var(--line);padding-right:34px}
  .feature:nth-child(2n){border-right:0;padding-right:0}
  .sectors{grid-template-columns:1fr 1fr}
  .credbar .container{grid-template-columns:1fr 1fr}
  .cred{border-left:0;padding-left:0;padding-right:20px}
  .cta .container{grid-template-columns:1fr}
}
@media(max-width:820px){
  :root{--gutter:22px}
  .brandtext{font-size:1.5rem}
  .section{padding:64px 0}
  .gallery{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .nav-right{display:none}
  .nav-toggle{display:block}
  .nav[data-open] .nav-right{display:flex;flex-direction:column;align-items:flex-start;gap:16px;
    position:absolute;top:100%;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    padding:22px;box-shadow:0 14px 28px rgba(16,31,51,.09)}
  .nav[data-open] .nav-links{flex-direction:column;align-items:flex-start;gap:14px}
}
@media(max-width:560px){
  .features,.sectors,.gallery{grid-template-columns:1fr}
  .feature{border-right:0!important;padding-right:0!important}
  .credbar .container{grid-template-columns:1fr}
  .cred{padding:14px 0;border-top:1px solid var(--line)}
  .cred:first-child{border-top:0}
}