body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background-color: #ffffff;
  color: #222;
  line-height: 1.6;
}

header {
  background: #f8f9fa;
  display: flex;
  align-items: center;
  padding: 15px 30px;
  border-bottom: 3px solid #2e3d6f;
}

header img {
  height: 55px;
  margin-right: 15px;
}

header h1 {
  font-size: 24px;
  color: #2e3d6f;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 1px;
}

nav {
  background: #2e3d6f;
  display: flex;
  justify-content: center;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

nav a {
  padding: 14px 22px;
  display: block;
  color: #ffffff;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s;
  text-transform: uppercase;
  font-size: 14px;
}

nav a:hover {
  background: #2e3d6f;
}

main {
  padding: 40px 20px;
  max-width: 1200px;
  margin: auto;
}

main h2 {
  color: #2e3d6f;
  font-size: 28px;
  margin-bottom: 20px;
  border-left: 4px solid #2e3d6f;
  padding-left: 10px;
}

footer {
  text-align: center;
  padding: 20px;
  background: #f0f0f0;
  border-top: 2px solid #2e3d6f;
  font-size: 14px;
  color: #555;
}

/* 📱 Адаптивность */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    text-align: center;
  }

  nav {
    flex-direction: column;
  }

  nav a {
    border-top: 1px solid rgba(255,255,255,0.2);
    text-align: center;
  }
}