header {
    grid-column: span 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: right;
}


.underline-button {
    display: inline-block;
    color: white;
    text-align: center;
    text-decoration: underline;
}

.login-button:hover {
    background-color: #333;
}

.login-button {
    display: inline-block;
    padding: 10px 20px; 
    background-color: black; 
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: 5px; 
    transition: background-color 0.3s; 
}

input[type="text"]:not([name="phone"]),
textarea,
input[type="checkbox"] {
  border: 1px solid #ccc;
}

input[type="text"]:not([name="phone"]):invalid,
textarea:invalid {
  border: 1px solid red;
}