* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f6f6f6;
  line-height: 1.5;
}

.header-primary {
  background-color: #1e4e8c;
  color: white;
  text-align: left;
  padding: 15px;
}
.header-primary h1 {
  font-size: 1.4rem;
}
.header-primary p {
  font-size: 0.9rem;
  margin-top: 3px;
}

.layout {
  display: flex;
  flex-direction: row;
  min-height: 80vh;
}

.sidebar {
  background-color: #cc6b2c;
  width: 180px;
  padding: 10px 0;
}
.side-nav ul {
  list-style: none;
}
.side-nav li {
  background-color: #e28b42;
  margin: 5px 10px;
  text-align: center;
  padding: 8px;
}
.side-nav a {
  text-decoration: none;
  color: #fff;
  font-weight: bold;
}

main {
  flex: 1;
  background-color: #fef9e7;
  padding: 15px;
}

.article-header {
  background-color: #4caf50;
  color: white;
  padding: 10px;
  margin-bottom: 10px;
}

.hero img {
  float: left; 
  width: 40%;
  margin: 0 15px 10px 0;
  border-radius: 4px; 
}

.article-text p {
  margin-bottom: 10px;
}

.article-text::after {
  content: "";
  display: block;
  clear: both; 
}

@media (max-width: 768px) {
  .layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
  }

  .side-nav li {
    display: none;
  }

  .hero img {
    width: 100%;
  }
}