/* Base Styles */
body {
  background-color: #fefefe;
  color: #333;
  font-family: 'Courier New', Courier, monospace;
  margin: 0;
  padding: 0;
  line-height: 1.8;
}

/* Header */
header {
  text-align: center;
  padding: 60px 20px 30px 20px;
  border-bottom: 1px solid #eee;
}

header h1 {
  font-size: 2.8em;
  margin-bottom: 0.2em;
}

.subtitle {
  color: #777;
  font-size: 1.1em;
}

/* Layout */
.container {
  display: flex;
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 20px;
}

/* Sidebar */
aside {
  flex: 0 0 220px;
  padding-right: 30px;
  border-right: 1px solid #ddd;
}

aside h2 {
  font-size: 1.2em;
  margin-bottom: 0.5em;
  border-bottom: 1px solid #ccc;
  padding-bottom: 0.2em;
}

aside ul {
  list-style: none;
  padding-left: 0;
}

aside li {
  margin-bottom: 10px;
}

aside a {
  color: #333;
  text-decoration: none;
}

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

/* Main content */
main {
  flex: 1;
  padding-left: 30px;
}

.post {
  margin-bottom: 40px;
}

.post h3 {
  font-size: 1.4em;
  margin-bottom: 0.5em;
}

/* Footer */
footer {
  text-align: center;
  font-size: 0.9em;
  color: #aaa;
  padding: 40px 20px;
  border-top: 1px solid #eee;
}