body{font-family:Arial,sans-serif;margin:0;padding:0;background-color:#f4f4f4}header{background-color:#333;color:#fff;text-align:center;padding:1rem 0}main{margin:20px}footer{background-color:#333;color:#fff;text-align:center;padding:1rem 0;position:fixed;bottom:0;width:100%}.form-group{margin-bottom:15px}label{display:block;margin-bottom:5px}input[type=text],textarea,select{width:100%;padding:8px;border:1px solid #ddd;border-radius:4px;box-sizing:border-box;margin-bottom:10px}button{background-color:#555;color:#fff;padding:10px 15px;border:none;border-radius:4px;cursor:pointer}button:hover{background-color:#666}.header-container{display:flex;justify-content:space-between;align-items:center;padding:0 15px}.header-nav button{margin-left:10px}.footer-container{display:flex;justify-content:space-between;align-items:center;padding:0 15px}