* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.65;
  color: #1f2a37;
  background: #f4f7fb;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #0f2d4f;
  color: #fff;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.nav a {
  color: #e8f1fc;
  text-decoration: none;
  font-weight: 600;
}

.nav a:hover {
  text-decoration: underline;
}

.section {
  padding: 60px 0;
  background: #fff;
  border-bottom: 1px solid #dbe5f0;
}

.section.alt {
  background: #eef4fb;
}

.hero {
  background: linear-gradient(140deg, #123a64, #1f6ba8);
  color: #fff;
}

h1,
h2 {
  margin-top: 0;
  line-height: 1.3;
}

h1 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 18px;
}

h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  margin-bottom: 12px;
  color: #0f2d4f;
}

.hero h1,
.hero p {
  max-width: 920px;
}

p {
  margin: 0;
  font-size: 1.03rem;
}

.contact ul {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.contact li {
  margin-bottom: 10px;
  background: #fff;
  border: 1px solid #d4e0ee;
  border-radius: 8px;
  padding: 12px 14px;
}

.contact a {
  color: #0d63a5;
}

.footer {
  background: #0e2239;
  color: #d0dced;
  padding: 24px 0;
}

.footer p {
  margin: 0;
  text-align: center;
  font-size: 0.95rem;
}

@media (max-width: 720px) {
  .header .container {
    flex-direction: column;
    justify-content: center;
    padding: 12px 0;
  }

  .nav {
    justify-content: center;
  }

  .section {
    padding: 42px 0;
  }
}