* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #1f2937;
  background: #f7f9fc;
  line-height: 1.7;
}
a { text-decoration: none; }
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}
.topbar {
  background: #0f1720;
  color: #fff;
  padding: 18px 0;
}
.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.brand {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: .5px;
}
.nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.nav a {
  color: rgba(255,255,255,.9);
  font-size: 14px;
}
.nav a:hover {
  color: #7dd3fc;
}
.hero {
  background: linear-gradient(135deg, #143656, #235e91);
  color: #fff;
  padding: 78px 0;
}
.hero h1 {
  margin: 0 0 16px;
  font-size: 42px;
  line-height: 1.2;
  max-width: 760px;
}
.hero p {
  margin: 0 0 24px;
  font-size: 17px;
  color: rgba(255,255,255,.92);
  max-width: 760px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
}
.btn-primary {
  background: #ffffff;
  color: #143656;
}
.btn-primary:hover {
  background: #e8f1fb;
}
.btn-secondary {
  background: rgba(255,255,255,.14);
  color: #fff;
  border: 1px solid rgba(255,255,255,.22);
}
.btn-secondary:hover {
  background: rgba(255,255,255,.2);
}
.section {
  padding: 56px 0;
}
.section h2 {
  margin: 0 0 12px;
  font-size: 30px;
  color: #102a43;
}
.section-desc {
  margin: 0 0 28px;
  color: #52606d;
  max-width: 760px;
}
.grid-3, .grid-2 {
  display: grid;
  gap: 20px;
}
.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.card {
  background: #fff;
  border: 1px solid #d9e2ec;
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 8px 22px rgba(15, 23, 32, 0.04);
}
.card h3 {
  margin: 0 0 10px;
  font-size: 20px;
  color: #102a43;
}
.card p {
  margin: 0;
  color: #52606d;
  font-size: 14px;
}
.highlight {
  background: #eef6ff;
  border: 1px solid #d4e7ff;
}
.contact-box {
  background: #0f1720;
  color: #fff;
  border-radius: 16px;
  padding: 28px;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}
.contact-item h4 {
  margin: 0 0 8px;
  font-size: 14px;
  color: rgba(255,255,255,.72);
}
.contact-item p {
  margin: 0;
  font-size: 15px;
  color: #fff;
  word-break: break-word;
}
.footer {
  background: #0b1118;
  color: rgba(255,255,255,.72);
  padding: 22px 0;
  font-size: 13px;
}
@media (max-width: 900px) {
  .grid-3, .grid-2, .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 34px;
  }
}