body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f5f5f5;
  color: #333;
  line-height: 1.6;
}

header {
  background-color: #003366;
  color: #fff;
  padding: 2rem 1rem 1rem;
  text-align: center;
}

header h1 {
  margin: 0;
  font-size: 2rem;
}

nav {
  background-color: #002244;
  text-align: center;
  padding: 0.5rem;
}

nav a {
  color: white;
  text-decoration: none;
  margin: 0 1rem;
  font-weight: bold;
}

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

.container {
  max-width: 1000px;
  margin: auto;
  padding: 2rem 1rem;
}

section {
  margin-bottom: 4rem;
}

section h2 {
  color: #003366;
  margin-top: 0;
}

img.hero {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  border-radius: 10px;
  margin-top: 1rem;
}

footer {
  text-align: center;
  padding: 0.25rem;
  background-color: #002244;
  color: #f5f5dc;
  position: fixed;
  width: 100%;
  bottom: 0;
}

/* Адаптивность */
@media (max-width: 600px) {
  header h1 {
    font-size: 1.5rem;
  }

  nav a {
    display: block;
    margin: 0.5rem 0;
  }

  .container {
    padding: 1rem;
  }
}

/* Анимации при прокрутке
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s ease-out, transform 1s ease-out;
} */

.fade-in.visible {
  opacity: 10;
  transform: translateY(0);
}

details {
  margin-bottom: 15px;
  border: 1px solid #ddd;
  border-radius: 5px;
  padding: 10px;
  background-color: #fafafa;
}

summary {
  cursor: pointer;
  font-weight: bold;
  font-size: 16px;
}

details[open] summary {
  color: #007acc;
}

details p {
  margin: 10px 0 0;
}