.login-container,.rules-container{max-width:800px;margin:0 auto;padding:20px}.header{display:flex;justify-content:space-between;align-items:center}.error{color:red;margin:10px 0}form{margin:20px 0;padding:20px;border:1px solid #ccc;border-radius:4px}input{width:100%;padding:8px;margin:8px 0}button{padding:8px 16px;background:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer}button:hover{background:#0056b3}.rule-item{padding:10px;margin:10px 0;border:1px solid #ccc;border-radius:4px}