/* Basic reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

body {
  background: #f9f9f9;
  color: #222;
  line-height: 1.6;
}

/* Header */
header {
  background: #003366;
  color: white;
  text-align: center;
  padding: 1rem 0;
}

/* Layout */
.container {
  display: flex;
  max-width: 1100px;
  margin: 20px auto;
  gap: 20px;
  padding: 0 10px;
}

/* News content */
main {
  flex: 3;
}

article {
  background: white;
  padding: 15px;
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

article h2 {
  margin-bottom: 10px;
  color: #003366;
}

/* Sidebar */
aside {
  flex: 1;
}

aside h3 {
  margin-bottom: 10px;
  color: #003366;
}

.ad-box {
  background: #ddd;
  height: 250px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border-radius: 8px;
  font-weight: bold;
}

/* Footer */
footer {
  text-align: center;
  background: #003366;
  color: white;
  padding: 15px;
  margin-top: 20px;
}