:root{
  --navy:#153f68;
  --navy-dark:#0c2e4c;
  --blue:#1f5d8f;
  --blue-light:#eaf3fa;
  --text:#17212b;
  --muted:#617180;
  --line:#d9e2e9;
  --white:#fff;
  --shadow:0 22px 55px rgba(21,63,104,.13);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);line-height:1.65;background:#fff}
a{text-decoration:none;color:inherit}
.container{width:min(1140px,calc(100% - 40px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.nav-wrap{min-height:80px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;flex-direction:column;line-height:1.1}
.brand strong{font-size:16px;letter-spacing:.02em}
.brand span{font-size:12px;color:var(--muted);margin-top:5px}
.site-nav{display:flex;align-items:center;gap:26px;font-size:14px;font-weight:700}
.site-nav a{color:#354655}
.site-nav a:hover{color:var(--blue)}
.nav-cta{background:var(--navy);color:#fff!important;padding:11px 17px;border-radius:8px}
.menu-toggle{display:none;border:0;background:none;padding:8px}
.menu-toggle span{display:block;width:25px;height:2px;background:var(--text);margin:5px 0}

.home-banner{padding:105px 0;background:radial-gradient(circle at 83% 20%,rgba(31,93,143,.15),transparent 28%),linear-gradient(180deg,#f5f9fc,#fff)}
.banner-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
.eyebrow{margin:0 0 13px;color:var(--blue);font-size:12px;font-weight:800;letter-spacing:.17em;text-transform:uppercase}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(48px,6vw,78px);line-height:1.02;letter-spacing:-.052em;margin-bottom:25px}
h2{font-size:clamp(35px,4vw,52px);line-height:1.1;letter-spacing:-.035em;margin-bottom:20px}
h3{line-height:1.28}
.lead{font-size:18px;color:var(--muted);max-width:660px;margin-bottom:32px}
.actions{display:flex;gap:14px;flex-wrap:wrap}
.button{display:inline-flex;align-items:center;justify-content:center;padding:13px 21px;border-radius:8px;font-weight:700;border:1px solid transparent;cursor:pointer;font:inherit}
.primary{background:var(--navy);color:#fff;box-shadow:0 12px 28px rgba(21,63,104,.2)}
.secondary{background:#fff;border-color:var(--line)}
.proof-row{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:42px;padding-top:23px;border-top:1px solid var(--line)}
.proof-row strong,.proof-row span{display:block}
.proof-row span{font-size:12px;color:var(--muted);margin-top:3px}
.banner-placeholder{min-height:450px;border:2px dashed #8eabc3;border-radius:22px;background:linear-gradient(145deg,#fff,#e7f1f8);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:30px;color:#476b87;box-shadow:var(--shadow)}
.banner-placeholder strong{font-size:19px;letter-spacing:.08em}
.banner-placeholder span{font-size:13px;margin-top:7px}
.placeholder-icon{font-size:70px;font-weight:800;margin-bottom:18px;color:var(--blue)}

.section{padding:105px 0}
.soft-bg{background:var(--blue-light)}
.section-heading{max-width:760px;margin-bottom:45px}
.section-heading>p:last-child{color:var(--muted);font-size:17px}
.services-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{padding:32px;border:1px solid var(--line);border-radius:16px;background:#fff;transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.number{font-size:12px;font-weight:800;color:var(--blue);letter-spacing:.12em}
.card h3{font-size:21px;margin:20px 0 10px}
.card p{color:var(--muted);margin-bottom:0}

.about-grid{display:grid;grid-template-columns:minmax(300px,400px) 1fr;gap:70px;align-items:center}
.portrait-placeholder{min-height:540px;border:2px dashed #89a8c1;border-radius:18px;background:linear-gradient(145deg,#f9fcfe,#dceaf4);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#466984;padding:28px}
.portrait-shape{width:145px;height:145px;border-radius:50%;background:rgba(31,93,143,.15);position:relative;margin-bottom:34px}
.portrait-shape:after{content:"";position:absolute;width:240px;height:150px;background:rgba(31,93,143,.15);border-radius:120px 120px 20px 20px;left:50%;transform:translateX(-50%);top:125px}
.portrait-placeholder strong{margin-top:120px;font-size:20px;letter-spacing:.08em}
.portrait-placeholder span{font-size:13px;margin-top:6px}
.about-copy>p{color:#506270;font-size:17px}
.about-copy strong{color:var(--text)}
.credentials{margin-top:30px;display:grid;gap:12px}
.credentials div{padding:15px 18px;background:#fff;border-left:4px solid var(--navy);border-radius:0 8px 8px 0}
.credentials span,.credentials strong{display:block}
.credentials span{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:var(--blue);font-weight:800}
.credentials strong{font-size:14px;margin-top:3px}

.portfolio-heading{max-width:none;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:end}
.portfolio-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.project-card{border:1px solid var(--line);border-radius:17px;overflow:hidden;background:#fff}
.project-image{height:270px;background:linear-gradient(135deg,#dbeaf5,#f6fafc);display:grid;place-items:center;color:#56758e;font-weight:800;letter-spacing:.09em;border-bottom:1px solid var(--line)}
.project-content{padding:26px}
.project-type{color:var(--blue);font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.14em;margin-bottom:7px}
.project-content h3{font-size:22px;margin-bottom:9px}
.project-content>p{color:var(--muted)}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}
.tags span{font-size:11px;background:var(--blue-light);color:var(--blue);padding:5px 9px;border-radius:999px}
.project-content a{font-weight:700;color:var(--blue);font-size:14px}

.dark-section{background:var(--navy-dark);color:#fff}
.light-heading h2{color:#fff}
.light-heading .eyebrow{color:#9fc8e7}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.features-grid div{padding:26px;border:1px solid rgba(255,255,255,.13);border-radius:14px;background:rgba(255,255,255,.04)}
.features-grid span{color:#9fc8e7;font-weight:800}
.features-grid h3{margin:14px 0 8px}
.features-grid p{color:#c7d7e3;font-size:14px;margin-bottom:0}

.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.process-step{padding:25px 21px;border-top:3px solid var(--navy);background:#f6f9fb}
.process-step span{font-weight:800;color:var(--blue)}
.process-step h3{margin:17px 0 8px}
.process-step p{font-size:14px;color:var(--muted);margin-bottom:0}

.testimonials-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.testimonial{background:#fff;border:1px solid var(--line);border-radius:15px;padding:26px}
.client-photo{width:58px;height:58px;border-radius:50%;background:#dce9f3;display:grid;place-items:center;color:#58758c;font-size:10px;font-weight:800;margin-bottom:20px}
.testimonial p{color:#536574;font-style:italic}
.testimonial strong,.testimonial span{display:block}
.testimonial span{font-size:12px;color:var(--muted);margin-top:3px}

.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px;align-items:start}
.muted{color:var(--muted)}
.accordion details{border-bottom:1px solid var(--line);padding:19px 0}
.accordion summary{cursor:pointer;font-weight:700;list-style:none}
.accordion summary::-webkit-details-marker{display:none}
.accordion summary:after{content:"+";float:right;color:var(--blue);font-size:21px}
.accordion details[open] summary:after{content:"–"}
.accordion details p{color:var(--muted);padding-right:35px;margin:12px 0 0}

.contact-section{background:var(--navy);color:#fff;padding:100px 0}
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:75px;align-items:start}
.contact-copy .light{color:#9fc8e7}
.contact-copy>p{color:#d5e3ee}
.contact-details{margin-top:28px;display:grid;gap:13px}
.contact-details span,.contact-details strong{display:block}
.contact-details span{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:#9fc8e7}
.contact-details strong{font-size:14px;margin-top:2px}
.contact-form{background:#fff;color:var(--text);padding:29px;border-radius:17px;box-shadow:0 24px 65px rgba(0,0,0,.19)}
.contact-form label{display:block;font-size:12px;font-weight:800;margin-bottom:15px}
.contact-form input,.contact-form select,.contact-form textarea{width:100%;margin-top:7px;border:1px solid var(--line);border-radius:8px;padding:12px;font:inherit;color:var(--text)}
.contact-form textarea{resize:vertical}
.form-button{width:100%;background:var(--navy);color:#fff}
.form-note{font-size:11px;color:var(--muted);margin:12px 0 0;text-align:center}
.form-message{font-size:13px;color:var(--blue);text-align:center;margin:9px 0 0}

.site-footer{background:#092842;color:#fff;padding:48px 0 22px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:40px}
.footer-brand,.footer-links,.footer-legal{display:flex;flex-direction:column;gap:7px}
.footer-brand span,.footer-links a,.footer-legal a{font-size:12px;color:#aac2d5}
.copyright{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:18px;font-size:12px;color:#8faac0}

@media(max-width:900px){
  .banner-grid,.about-grid,.faq-grid,.contact-grid{grid-template-columns:1fr}
  .portfolio-heading{grid-template-columns:1fr;gap:10px}
  .features-grid,.testimonials-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:700px){
  .container{width:min(100% - 28px,1140px)}
  .menu-toggle{display:block}
  .site-nav{display:none;position:absolute;top:79px;left:0;right:0;background:#fff;padding:20px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line)}
  .site-nav.open{display:flex}
  h1{font-size:45px}
  .home-banner{padding:75px 0}
  .proof-row,.services-grid,.portfolio-grid,.features-grid,.process-grid,.testimonials-grid,.footer-grid{grid-template-columns:1fr}
  .section{padding:78px 0}
  .banner-placeholder{min-height:340px}
  .portrait-placeholder{min-height:470px}
}