:root{
  --nav-blue: #004d99;
  --accent: #ffdd57;
  --muted: #6b7280;
  --bg: #ffffff;
  --alt-bg: #f8fafc;
  --max-width: 1200px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Open Sans',system-ui,Arial,sans-serif;
  color:#111827;
  background:var(--bg);
  margin:0;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* NAVBAR */
.navbar{
  position:fixed;
  top:0;
  left:0;
  right:0;
  background:var(--nav-blue);
  color:#fff;
  z-index:1100;
  box-shadow:0 6px 18px rgba(3,7,18,0.12);
  transition:transform .33s ease, background .2s ease;
}
.nav-inner{
  max-width:var(--max-width);
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0.85rem 1.25rem;
}
.logo{font-weight:700;color:#fff;font-size:1.05rem}
.hamburger{
  display:none;
  background:none;
  border:none;
  color:#fff;
  font-size:1.6rem;
  cursor:pointer;
}
.nav-links ul{display:flex;gap:1rem;align-items:center;list-style:none;margin:0;padding:0}
.nav-links a{color:var(--accent);text-decoration:none;font-weight:600}
.nav-links a:hover{color:#fff}
.lang-selector{margin-left:1rem;display:flex;align-items:center}
.lang-dropdown{
  background:transparent;
  color:var(--accent);
  border:2px solid var(--accent);
  border-radius:6px;
  padding:0.2rem 0.45rem;
  font-weight:600;
  cursor:pointer;
}

/* Sections */
.section-stand{padding:5.25rem 1.25rem}
main{padding-top:70px}
.hero{
  text-align:center;
  background:linear-gradient(135deg,#e6f2ff,#ffffff);
  padding-top:90px;padding-bottom:90px;
}
.hero-inner{max-width:900px;margin:0 auto}
.hero h1{font-size:3rem;color:var(--nav-blue);margin-bottom:.25rem}
.hero h2{font-size:1.75rem;color:#0357b8;margin-bottom:.75rem}
.hero p{max-width:780px;margin:0 auto;color:var(--muted)}

/* Two-column alternating layout */
.two-col{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:2rem;
  align-items:center;
  max-width:var(--max-width);
  margin:0 auto;
  padding:3.5rem 1.25rem;
}
.two-col.alt{background:var(--alt-bg)}
.two-col .text{padding:0 0.5rem}
.two-col .media{display:flex;justify-content:center}
.two-col img{width:100%;max-width:460px;height:auto;border-radius:8px;box-shadow:0 8px 20px rgba(3,7,18,0.06)}

/* Footer */
.footer{background:var(--nav-blue);color:#fff;text-align:center;padding:1.25rem;font-size:.95rem;margin-top:2rem}

/* Mobile */
@media (max-width: 768px){
  .hamburger{display:block}
  .nav-links{position:absolute;top:100%;left:0;width:100%;background:var(--nav-blue);overflow:hidden;max-height:0;transition:max-height .28s ease,opacity .28s ease}
  .nav-links.open{max-height:480px;opacity:1}
  .nav-links ul{flex-direction:column;gap:0;padding: .8rem 0}
  .nav-links li{width:100%;text-align:center;padding:.6rem 0}
  .nav-links a{display:block;padding:.5rem 1rem;font-size:1.05rem}
  .lang-selector{justify-content:center}
  .two-col{grid-template-columns:1fr; padding:2rem 1rem}
  .two-col img{max-width:320px}
  .hero h1{font-size:2.25rem}
  .hero h2{font-size:1.25rem}
}

/* Navbar hide on scroll */
.nav-hidden{transform:translateY(-120%);}

/* Reveal animation */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .55s ease, transform .55s ease;
}
.reveal.visible{
  opacity:1;
  transform:translateY(0);
}

/* visually-hidden for accessibility */
.visually-hidden{
  position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .two-col,
  .two-col.alt {
    flex-direction: column;
    text-align: center;
  }
  
  /* Always show text first, image second */
  .two-col .text {
    order: 1;
  }
  .two-col .media {
    order: 2;
  }
}