body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f5f5f5;
  color: #333;
  height: 100%;
}
header {
  background: #0a569b;
  color: white;
  text-align: center;
  padding: 1em;
}
footer {
  background: #0a569b;
  color: white;
  text-align: center;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 50px;
}
nav {
  background: #ddd;
  padding: 0.5em;
  text-align: center;
}
nav a {
  margin: 0 1em;
  text-decoration: none;
  color: #0a569b;
}
main {
  padding: 2em;
  max-width: 960px;
  margin: auto;
  background: white;
  margin-top: 15px;
  position: relative;
}
h2 {
  color: #0a569b;
}

.pub-date{
  position: absolute; 
  right: 10px; 
  bottom: 10px; 
  font-size: 0.9em; 
  color: #666;
}

.wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh; /* 100% высоты окна */
}

.content {
  flex: 1; /* Занимает всё доступное пространство */
  padding: 20px;
}