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

body {
  font-family: 'Courier New', monospace;
  background-color: #f2f2f2;
  color: #222;
  padding: 20px;
  max-width: 800px;
  margin: auto;
}

header {
  text-align: center;
  margin-bottom: 20px;
}

header h1 {
  font-size: 2.5em;
}

.tagline {
  font-size: 1em;
  color: #555;
}

.post-form {
  background: #fff;
  padding: 15px;
  border: 1px solid #ccc;
  margin-bottom: 30px;
}

.post-form h2 {
  margin-bottom: 10px;
}

.post-form input[type="text"],
.post-form textarea {
  width: 100%;
  margin-bottom: 10px;
  padding: 10px;
  border: 1px solid #aaa;
  font-family: inherit;
}

.post-form button {
  padding: 10px 20px;
  border: none;
  background: #222;
  color: white;
  cursor: pointer;
}

.post-form button:hover {
  background: #444;
}

.posts .post {
  background: #fff;
  border: 1px solid #ccc;
  padding: 15px;
  margin-bottom: 20px;
}

.post-header {
  font-size: 0.9em;
  color: #666;
  margin-bottom: 10px;
}

.posts img {
  max-width: 100%;
  margin-top: 10px;
}

footer {
  text-align: center;
  font-size: 0.8em;
  margin-top: 40px;
  color: #888;
}