body {
    font-family: Arial, sans-serif;
    background-color: #d6d0d0;
    margin: 0;
    padding: 0;
}

h2 {
    font-family: math;
    font-size: 2.5em;
    text-align: center;
    padding: 20px;
}

form {
    width: 300px;
    margin: 30px auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 4px;
}

label {
    display: block;
    margin-bottom: 5px;
}

input[type="text"] {
    width: 90%;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 4px;
    border: 1px solid #ddd;
}

button {
    padding: 10px 15px;
    background-color: #4479BA;
    color: #fff;
    border: none;
    border-radius: 4px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    background-color: #fefefe;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    border-radius: 5px;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

.btn-primary{
    padding: 10px 10px;
    background-color: #4479BA;
    color: #fff;
    border-radius: 4px;
}