/* General Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background: #f4f4f9;
    color: #333;
}

/* Navbar Styles */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #0073e6;
    color: #fff;
    padding: 0.5rem 1rem;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1rem;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 1rem;
}

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

.login-button a {
    background: #ff9800;
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    text-decoration: none;
}

.login-button a:hover {
    background: #e68a00;
}

/* Main Section */
.main-section {
    text-align: center;
    padding: 2rem;
    background: #fff;
}

.main-section h1 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.courses-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.course-card {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.course-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.course-card p {
    color: #666;
}

.course-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: #0073e6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
    }

    .nav-links {
        flex-direction: column;
        gap: 0.5rem;
    }

    .courses-container {
        grid-template-columns: 1fr;
    }
}