/* Updated RD Consulting BV styles with mobile-friendly header */
:root{
  --brand-dark:#0A2540;
  --brand-mid:#1C3D5A;
  --accent:#2E6DCC;
  --neutral-50:#F9FAFB;
  --neutral-100:#F5F7FA;
  --text-900:#222222;
  --text-800:#333333;
  --radius-xl:1.25rem;
  --shadow-md:0 8px 24px rgba(10,37,64,0.12);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--text-900);
  line-height:1.6;
  background:var(--neutral-50);
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}

.container{max-width:1100px;margin:0 auto;padding:0 20px}

.site-header{
  position:sticky;top:0;z-index:999;background:var(--brand-dark);
  color:#fff;border-bottom:1px solid rgba(255,255,255,0.08)
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;flex-wrap:wrap;gap:12px
}
.brand{display:flex;align-items:center;gap:12px;flex:1 1 auto;min-width:180px}
.logo{width:36px;height:36px}
.brand-name{font-weight:700;letter-spacing:.2px;color:#fff}
.main-nav{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.main-nav a{color:#fff;opacity:.9;padding:6px 0}
.main-nav a:hover{opacity:1}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 14px;border-radius:999px;border:1px solid transparent;font-weight:600;
  transition:transform .05s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-md)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-outline{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}

.section{padding:72px 0}
.section-alt{background:var(--neutral-100)}
.section-strong{background:var(--brand-mid);color:#fff}

.hero{background:var(--brand-dark);color:#fff;padding:96px 0 80px}
.hero h1{font-size:44px;line-height:1.15;margin:0 0 12px}
.hero .accent{color:#CDE1FF}
.lead{font-size:18px;color:rgba(255,255,255,.92);max-width:800px}
.cta{display:flex;gap:12px;margin-top:20px;flex-wrap:wrap}

h2{font-size:32px;margin:0 0 24px}
h3{font-size:20px;margin:0 0 8px}

.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.card{
  background:#fff;border-radius:var(--radius-xl);padding:24px;box-shadow:var(--shadow-md);
  border:1px solid #E6EBF1;color:var(--text-800)
}

.contact-inner{display:grid;grid-template-columns:1fr .6fr;gap:24px;align-items:start}
.contact-card{background:#133c60;border-radius:var(--radius-xl);padding:20px;box-shadow:var(--shadow-md)}

.site-footer{background:#071b2d;color:#b9c7d6;padding:28px 0;text-align:center}

@media (max-width: 900px){
  .grid-3{grid-template-columns:1fr}
  .contact-inner{grid-template-columns:1fr}
  .hero h1{font-size:32px}
  .header-inner{flex-direction:column;align-items:flex-start}
  .main-nav{width:100%;justify-content:flex-start;gap:12px}
}