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

h1 {
    text-align: center;
    color: firebrick;
    padding: 20px 0;
}

h2 {
    color: darkgreen;
    text-align: center;
}

form {
    margin: 20px auto;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    width: 60%;
}

form input[type="text"], form input[type="submit"] {
    padding: 10px;
    margin: 10px 0;
    width: 100%;
    box-sizing: border-box;
}

form input[type="submit"] {
    background-color: forestgreen;
    color: white;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

form input[type="submit"]:hover {
    background-color: darkgreen;
}

table {
    width: 80%;
    margin: 20px auto;
    border-collapse: collapse;
}

table th, table td {
    padding: 12px;
    text-align: left;
    border: 1px solid tomato;
}

table th {
    background-color: blanchedalmond;
}

table tr:nth-child(even) {
    background-color: aliceblue;
}

table tr:hover {
    background-color: mistyrose;
}

nav {
    background-color: firebrick;
    padding: 10px 0;
    text-align: center;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

nav ul li {
    display: inline;
    margin-right: 15px;
}

nav ul li a {
    text-decoration: none;
    color: white;
    font-size: 18px;
}

nav ul li a:hover {
    text-decoration: underline;
}

.success-message {
    text-align: center;
    color: mediumseagreen;
    font-size: 18px;
    font-weight: bold;
}

.signup-form {
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
}

.signup-form input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    box-sizing: border-box;
}

.signup-form button {
    width: 100%;
    padding: 12px;
    background-color: tomato;
    color: white;
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.signup-form button:hover {
    background-color: firebrick;
}

.signup-form-form form {
    display: flex;
    flex-direction: column;
}

.signup-form-form p {
    color: firebrick;
    font-size: 16px;
    text-align: center;
}

#content {
    width: 80%;
    margin: 20px auto;
    align-items: center;
    align-content: center;
}