* { 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;
    background: #fafafa;
}

.container { max-width: 800px; margin: 0 auto; padding: 0 20px; }

header {
    background: #2c3e50;
    color: #fff;
    padding: 2rem 0;
    text-align: center;
}
header h1 { font-size: 2rem; margin-bottom: 0.25rem; }
header p { opacity: 0.8; }

nav {
    background: #34495e;
    padding: 0.75rem 0;
}
nav .container { display: flex; gap: 1.5rem; justify-content: center; }
nav a { color: #ecf0f1; text-decoration: none; font-weight: 500; }
nav a:hover { color: #3498db; }

main { padding: 2rem 0; min-height: 60vh; }

.post-card {
    background: #fff;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    text-decoration: none;
    color: inherit;
    display: block;
    transition: box-shadow 0.2s;
}
.post-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.12); }
.post-card h2 { color: #2c3e50; margin-bottom: 0.25rem; }
.post-card .meta { color: #888; font-size: 0.9rem; margin-bottom: 0.5rem; }
.post-card .excerpt { color: #555; }

.post-full {
    background: #fff;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.post-full h1 { color: #2c3e50; margin-bottom: 0.25rem; }
.post-full .meta { color: #888; margin-bottom: 1.5rem; padding-bottom: 1rem; border-bottom: 1px solid #eee; }
.post-full .content h2 { margin: 1.5rem 0 0.5rem; }
.post-full .content p { margin-bottom: 1rem; }
.post-full .content ul, .post-full .content ol { margin: 0.5rem 0 1rem 1.5rem; }
.post-full .content code {
    background: #f0f0f0;
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    font-size: 0.9em;
}
.post-full .content pre {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 1rem;
    border-radius: 4px;
    overflow-x: auto;
    margin: 1rem 0;
}
.post-full .content pre code { background: none; padding: 0; }
.post-full .content blockquote {
    border-left: 4px solid #3498db;
    padding: 0.5rem 1rem;
    margin: 1rem 0;
    background: #f8f9fa;
    color: #555;
}

.btn {
    display: inline-block;
    background: #3498db;
    color: #fff;
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}
.btn:hover { background: #2980b9; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.9rem; }
.btn-danger { background: #e74c3c; }
.btn-danger:hover { background: #c0392b; }

.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; margin-bottom: 0.4rem; font-weight: 500; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font: inherit;
}
.form-group textarea { min-height: 180px; resize: vertical; }

.alert { padding: 0.75rem 1rem; border-radius: 4px; margin-bottom: 1.5rem; }
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

.empty { text-align: center; padding: 3rem; color: #999; }

footer {
    background: #2c3e50;
    color: #ecf0f1;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 2rem;
}