body {
    font-family: sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #333;
    color: #fff;
    padding: 1em 0;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: center;
}

nav ul li {
    display: inline;
    margin: 0 1em;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
}

main {
    padding: 20px;
    margin: 20px auto;
    max-width: 960px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
}

.home .hero {
    text-align: center;
    padding: 2em 0;
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 1em;
    border: 5px solid #ddd;
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.home .highlights {
    margin-top: 2em;
}

.home .interests {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1em;
    margin-top: 1em;
}

.interest-card {
    background-color: #eee;
    padding: 1em;
    border-radius: 5px;
    text-align: center;
}

.interest-card h3 {
    margin-top: 0;
}

.page h1, .login-page h1, .internal-content h1 {
    text-align: center;
    margin-bottom: 1em;
}

.login-page form {
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f9f9f9;
    border-radius: 8px;
    border: 1px solid #ddd;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input[type="text"],
.form-group input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

.login-page button[type="submit"] {
    background-color: #333;
    color: #fff;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
}

.login-page button[type="submit"]:hover {
    background-color: #555;
}

.login-page .error {
    color: red;
    margin-top: 10px;
    text-align: center;
}

footer {
    text-align: center;
    padding: 1em 0;
    background-color: #333;
    color: #fff;
    position: fixed;
    bottom: 0;
    width: 100%;
}