* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Georgia', serif; color: #1a1a1a; line-height: 1.7; }

.site-header {
    padding: 1.5rem 2rem; border-bottom: 1px solid #e5e5e5;
    font-size: 1.25rem; font-weight: bold;
}
.site-header a { color: inherit; text-decoration: none; }

.posts-grid {
    max-width: 900px; margin: 2rem auto; padding: 0 1rem;
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem;
}
.post-card {
    display: block; text-decoration: none; color: inherit;
    border: 1px solid #e5e5e5; border-radius: 8px; overflow: hidden;
    transition: box-shadow 0.2s;
}
.post-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.post-card img { width: 100%; height: 180px; object-fit: cover; }
.post-card h2 { padding: 1rem 1rem 0.25rem; font-size: 1.1rem; }
.post-card p { padding: 0 1rem; font-size: 0.9rem; color: #555; }
.post-card time { padding: 0.5rem 1rem 1rem; display: block; font-size: 0.8rem; color: #888; }

.post {
    max-width: 720px; margin: 2rem auto; padding: 0 1rem;
}
.post h1 { font-size: 2rem; margin-bottom: 0.5rem; }
.post time { color: #888; display: block; margin-bottom: 1.5rem; }
.post-image { width: 100%; border-radius: 8px; margin-bottom: 1.5rem; }
.post-content { font-size: 1.05rem; }

@media (max-width: 600px) {
    .post h1 { font-size: 1.5rem; }
    .posts-grid { grid-template-columns: 1fr; }
}