body {
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
  color: black;
}

header, nav {
  background-color: #f8f8f8;
  padding: 10px 20px;
}

header {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid #ddd;
}

header section {
  display: flex;
  margin: 5px 0;
}

header img {
  height: 60px;
  margin-left: auto;
  margin-right: auto; /* Center the image */
}

nav {
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid #ddd;
  margin-bottom: 50px;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  display: flex; 
}

nav li {
  margin-right: 20px;
}

nav a {
  text-decoration: none;
  color: black;
}

nav a:hover {
  color: gray;
}

main {
  padding: 20px;
  max-width: 900px;
  margin: 0 auto;
  margin-bottom: 50px;
}

.blog-item {
  background-color: white;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
  padding: 20px;
  transition: 0.3s;
  border: 1px solid rgba(0, 0, 0, 0.05);
}

.blog-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.blog-item h2 {
  margin: 0 0 10px 0;
  font-size: 24px;
  font-weight: bold;
  line-height: 1.3;
  color: black;
}

.blog-item .blog-date {
  font-size: 14px;
  color: gray;
  margin-bottom: 10px;
  display: block;
}

.blog-item .blog-summary {
  color: #4a5568;
  margin-bottom: 15px;
  line-height: 1.7;
}

.blog-item a {
  color: #3a3f51;
  text-decoration: none;
  transition: 0.3s;
}

.blog-details img {
  max-width: 100%;
  height: auto;
  margin-bottom: 20px;
}

footer {
  background-color: #3a3f51;
  color: #aab0c0;
  text-align: center;
  padding: 3px;
  width: 100%;
  font-size: 15px;
}

@media (max-width: 1024px) {
  header {
      padding: 1rem;
  }
  
  header img {
      height: 50px;
  }
}

@media (max-width: 768px) {
  header {
      padding: 1.5rem;
  }
  
  header h1 {
      font-size: 2rem;
  }
  
  main {
      padding: 1rem;
  }
  
  .blog-item {
      padding: 1.5rem;
  }
  
  .blog-item h2 {
      font-size: 1.5rem;
  }

  nav ul {
      flex-direction: column; 
      align-items: center; 
  }

  nav li {
      margin-bottom: 10px;
  }
}

@media (max-width: 480px) {
  header {
      padding: 1rem;
  }

  header h1 {
      font-size: 1.5rem;
  }
  
  .blog-item {
      padding: 1rem;
  }

  .blog-item h2 {
      font-size: 1.2rem;
  }

  footer {
      font-size: 13px;
  }
}