* { box-sizing: border-box; }
body {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  margin: 0;
  background: #f7fbff;
  color: #10233b;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 0;
}

.site-header {
  background: #0d4e8a; 
  color: #fff;
  padding: 0.8rem 0;
}
.site-title {
  margin: 0;
  font-size: 1.6rem;
  text-align: center;
}
.main-nav ul {
  list-style: none;
  padding: 0;
  text-align: center;
  margin: 0.5rem 0 0 0;
  display: flex;
  justify-content: center;
  gap: 1rem;
}
.main-nav a {
  color: #fff;
  text-decoration: none;
  padding: 0.4rem 0.6rem;
  display: inline-block;
}
.main-nav a:hover, .main-nav a:focus {
  background: #0861b3;
  border-radius: 4px;
}

.hero {
  background: linear-gradient(rgba(13,78,138,0.45), rgba(13,78,138,0.45));
  color: #fff;
  text-align: center;
  padding: 2rem 1rem;
  border-bottom: 4px solid #e6eef8;
}
.hero img.responsive-img {
  max-width: 100%;
  height: auto;
  margin-top: 1rem;
  border-radius: 6px;
}

cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}
.card {
  background: #fff;
  padding: 1rem;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.btn {
  background: #0d4e8a;
  color: #fff;
  border: none;
  padding: 0.5rem 0.8rem;
  text-decoration: none;
  display: inline-block;
  margin-top: 0.5rem;
  border-radius: 4px;
}
.btn:hover, .btn:focus {
  background: #0861b3;
}

.responsive-img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0.8rem 0;
}

.contact-form {
  max-width: 600px;
  background: #fff;
  padding: 1rem;
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.contact-form label {
  display: block;
  margin: 0.6rem 0 0.2rem 0;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.6rem;
  border: 1px solid #d7e3f0;
  border-radius: 4px;
}
.note {
  font-size: 0.9rem;
  color: #334e6b;
  margin-top: 0.5rem;
}

.site-footer {
  background: #0d4e8a;
  color: #fff;
  padding: 1rem 0;
  margin-top: 2rem;
  text-align: center;
}

@media (max-width: 600px) {
  .site-title { font-size: 1.2rem; }
  .main-nav ul { flex-direction: column; gap: 0.4rem; }
}