body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

header {
    background: #007BFF;
    color: white;
    padding: 20px 10px;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 2.5em;
}

nav {
    background: #333;
    color: white;
    padding: 10px;
    text-align: center;
}

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

nav li {
    display: inline;
    margin: 0 15px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    color: #007BFF;
    text-decoration: underline;
}

main {
    max-width: 80%;
    margin: 20px auto;
    padding: 20px;
    background: white;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h2, h3 {
    color: #007BFF;
}

label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
}

input[type="text"], select, textarea {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
}

input[type="text"]:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #007BFF;
}

.radio-group {
    display: flex;
    gap: 20px;
    margin-top: 10px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 15px;
}

table, th, td {
    border: 1px solid #ddd;
}

th, td {
    padding: 8px;
    text-align: left;
}

button[type="submit"] {
    width: 100%;
    padding: 10px;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    margin-top: 20px;
}

button[type="submit"]:hover {
    background-color: #0056b3;
}

footer {
    background: #007BFF;
    color: white;
    text-align: center;
    padding: 10px;
    margin-top: 20px;
}

footer p {
    margin: 5px 0;
}

footer a {
    color: white;
    text-decoration: none;
}

footer .social-icons {
    margin-top: 10px;
}

footer .social-icons a {
    margin: 0 10px;
    text-decoration: none;
    color: white;
    font-size: 1.5em;
}

.learned-icons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
}

.learned-icons div {
    text-align: center;
}

.learned-icons img {
    width: 50px;
    height: 50px;
    display: block;
    margin: 0 auto 5px;
}

@media (max-width: 768px) {
    main {
        width: 90%;
    }
}