/* style.css */
body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    background-color: #f4f4f4;
    color: #333;
}

header, footer {
    background-color: #0d47a1;
    color: #fff;
    padding: 20px 0;
    text-align: center;
}

nav a {
    color: #fff;
    margin: 0 15px;
    text-decoration: none;
}

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

section {
    padding: 40px 20px;
    max-width: 1200px;
    margin: auto;
}

h1, h2, h3 {
    color: #0d47a1;
}

button {
    background-color: #ff9800;
    border: none;
    padding: 10px 20px;
    color: #fff;
    cursor: pointer;
}

button:hover {
    background-color: #e68900;
}

footer p {
    margin: 5px 0;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}