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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

header {
    border-bottom: 2px solid #0066cc;
    padding-bottom: 20px;
    margin-bottom: 30px;
}

header h1 {
    color: #0066cc;
    margin-bottom: 10px;
}

nav a {
    color: #0066cc;
    text-decoration: none;
    margin-right: 15px;
}

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

article {
    margin-bottom: 40px;
}

article header h2 {
    color: #0066cc;
    margin-bottom: 10px;
}

.meta {
    color: #666;
    font-size: 0.9em;
    margin-bottom: 20px;
}

.content {
    line-height: 1.8;
}

.content h2 {
    margin-top: 30px;
    margin-bottom: 15px;
    color: #333;
}

.content ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.tags {
    color: #666;
    font-size: 0.9em;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.post-preview {
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
    margin-bottom: 20px;
}

.post-preview h3 {
    margin-bottom: 5px;
}

.post-preview h3 a {
    color: #0066cc;
    text-decoration: none;
}

.post-preview h3 a:hover {
    text-decoration: underline;
}

footer {
    border-top: 2px solid #0066cc;
    margin-top: 50px;
    padding-top: 20px;
    text-align: center;
    color: #666;
    font-size: 0.9em;
}