body {
  font-family: "Georgia", serif;
  background: #f8f9f7;
  color: #2c2c2c;
  margin: 0;
  padding: 0;
}
header {
  background: #4b6b5c;
  text-align: center;
  padding: 20px;
}
header .logo {
  max-width: 240px;
}
main {
  max-width: 800px;
  margin: 40px auto;
  background: #fff;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}
h1 {
  font-size: 28px;
  color: #3f554b;
  margin-bottom: 10px;
}
.author {
  color: #666;
  font-size: 14px;
  margin-bottom: 30px;
}
article {
  line-height: 1.7;
  font-size: 17px;
}
footer {
  text-align: center;
  padding: 20px;
  color: #666;
  font-size: 14px;
}
a {
  color: #3f554b;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}