body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f9f9f9;
}
h1 { color: #2c3e50; border-bottom: 2px solid #3498db; padding-bottom: 10px; }
h2 { color: #2c3e50; }
a { color: #3498db; text-decoration: none; }
a:hover { text-decoration: underline; color: #2980b9; }
header { margin-bottom: 30px; }
nav ul { list-style: none; padding: 0; display: flex; gap: 20px; }
.posts-list article { margin-bottom: 40px; padding-bottom: 20px; border-bottom: 1px solid #eee; }
.post-date { color: #7f8c8d; font-size: 0.9em; margin-bottom: 15px; }
.full-post img { max-width: 100%; height: auto; margin: 20px 0; border-radius: 5px; }
footer { margin-top: 50px; padding-top: 20px; border-top: 1px solid #eee; font-size: 0.9em; color: #7f8c8d; text-align: center; }
@media (max-width: 600px) {
    body { padding: 10px; }
    h1 { font-size: 1.8em; }
    nav ul { flex-direction: column; gap: 5px; }
}