body{color:#222;background-color:#f8f8f8;margin:0;padding:20px;font-family:Arial,sans-serif}#root{max-width:1100px;margin:0 auto}a{color:#2563eb}.post-card{background:#fff;border:1px solid #ddd;border-radius:6px;margin-bottom:12px;padding:16px}.posts-grid{grid-template-columns:repeat(2,1fr);gap:15px;display:grid}.post-card{margin-bottom:0}input{box-sizing:border-box;width:100%;max-width:350px;margin-bottom:20px;padding:10px}@media (width<=600px){.posts-grid{grid-template-columns:1fr}}