body{color:#1e293b;background-color:#f8fafc;margin:0;font-family:Pretendard,sans-serif}.header{color:#fff;text-align:center;background:#0f172a;padding:40px 20px}.card-grid{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;max-width:1200px;margin:0 auto;padding:40px;display:grid}.card{background:#fff;border-radius:12px;padding:24px;transition:transform .2s;box-shadow:0 4px 6px -1px #0000001a}.card:hover{transform:translateY(-5px);box-shadow:0 10px 15px -3px #0000001a}.tag{color:#3b82f6;font-size:.8rem;font-weight:700}