:root{
  --navy:#002b5b;
  --silver:#c7cfd6;
  --accent:#5ea9ff;
  --light:#f6f9fc;
  --white:#ffffff;
  --text:#0f1723;
}

*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;color:var(--text);background:var(--light)}

/* Container */
.container{width:90%;max-width:1200px;margin:0 auto;padding:2rem 0}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:linear-gradient(180deg, rgba(0,0,0,0.25), rgba(0,0,0,0));backdrop-filter: blur(4px)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:0.5rem 0}
.logo img{height:56px;display:block}
.main-nav a{color:var(--white);margin-left:1rem;text-decoration:none;padding:0.4rem 0.6rem;border-radius:6px;background:transparent}
.main-nav a.active{background:rgba(255,255,255,0.06);text-decoration:underline}
.contact-quick{display:flex;flex-direction:column;align-items:flex-end;color:var(--silver)}
.contact-quick a{color:var(--silver);text-decoration:none;font-weight:600}

/* Hero full viewport */
.full-viewport{min-height:100vh;display:flex;align-items:center;background-image:linear-gradient(180deg, rgba(0,43,91,0.75), rgba(0,43,91,0.6)), url('https://images.unsplash.com/photo-1505692794405-0ca5b1f5f4b0?auto=format&fit=crop&w=1600&q=60');background-size:cover;background-position:center;color:var(--white);padding:0}
.hero-overlay{width:100%;text-align:center;padding:6rem 1rem}
.hero-logo{max-width:220px;height:auto;margin:0 auto 1.5rem;display:block;border-radius:6px;background:rgba(255,255,255,0.02);padding:8px}
.hero h1{font-size:clamp(1.6rem,3.6vw,2.8rem);margin:0 0 1rem}
.hero p{max-width:900px;margin:0 auto 1.2rem;color:rgba(255,255,255,0.9)}

/* Buttons */
.btn{display:inline-block;background:var(--accent);color:var(--navy);padding:0.8rem 1.2rem;border-radius:8px;font-weight:700;text-decoration:none}

/* Intro section */
.intro{padding:3rem 0;background:linear-gradient(180deg,var(--white),rgba(255,255,255,0.98))}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.5rem}

/* Features */
.full-section{padding:2.5rem 0;background:var(--white)}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1.25rem}
.card{background:linear-gradient(180deg,var(--white),#f7fbff);padding:1.5rem;border-radius:10px;box-shadow:0 6px 18px rgba(2,18,37,0.06);border:1px solid rgba(0,43,91,0.04)}

/* CTA strip */
.cta-strip{background:linear-gradient(90deg,var(--navy),#003b6a);color:var(--white);padding:1.8rem 0;text-align:center}

/* Page hero */
.page-hero{min-height:60vh;display:flex;align-items:center;background-size:cover;background-position:center;padding:0}
.page-hero.image-bg{background-image:linear-gradient(180deg, rgba(0,43,91,0.6), rgba(0,43,91,0.4)), url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?auto=format&fit=crop&w=1600&q=60');color:var(--white)}
.page-hero.muted-bg{background:linear-gradient(180deg, rgba(255,255,255,0.85), rgba(255,255,255,0.85)), url('https://images.unsplash.com/photo-1469474968028-56623f02e42e?auto=format&fit=crop&w=1600&q=60');background-blend-mode:overlay;color:var(--navy)}

/* Services list */
.services-list{padding:2.5rem 0}
.service{background:linear-gradient(180deg,var(--white),#fbfdff);padding:1.2rem;border-radius:8px;margin-bottom:1rem;box-shadow:0 6px 16px rgba(2,18,37,0.04)}

/* About */
.about{padding:2.5rem 0}
.about h2{margin-top:0.6rem}

/* Contact */
.contact{padding:2.5rem 0}
.contact-grid{display:grid;grid-template-columns:1fr 360px;gap:1.5rem;align-items:start}
.contact form{background:var(--white);padding:1.4rem;border-radius:10px;box-shadow:0 8px 24px rgba(2,18,37,0.06);border:1px solid rgba(2,18,37,0.03)}
.contact label{display:block;margin-bottom:0.35rem;font-weight:700}
.contact input,.contact textarea{width:100%;padding:0.75rem;border-radius:6px;border:1px solid var(--silver);margin-bottom:0.9rem}
.contact .btn{width:100%;display:inline-block;text-align:center}

/* Footer */
.site-footer{background:var(--navy);color:var(--silver);padding:1.4rem 0;text-align:center}

/* Responsive */
@media(max-width:900px){
  .contact-grid{grid-template-columns:1fr}
  .contact-quick{display:none}
  .main-nav{display:flex;gap:0.5rem}
  .nav{flex-direction:column;align-items:flex-start;gap:0.6rem;padding:1rem 0}
  .hero-overlay{padding:4rem 1rem}
  .logo img{height:48px}
}