body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background-color: #f9f9f9;
    color: #333;
    line-height: 1.6;
}

.header {
    background: #01579b;
    color: white;
    display: flex;
    align-items: center;
    padding: 20px;
}

.logo {
    height: 80px;
    margin-right: 20px;
}

.title {
    font-size: 2rem;
    margin: 0;
}

.tagline {
    font-style: italic;
    font-size: 1rem;
    margin-top: 4px;
    color: #e3f2fd;
}

.main-content {
    padding: 2rem;
}

.thumbnail {
    width: 100%;
    max-height: 300px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.course-title {
    text-align: center;
    margin-top: 2rem;
    font-size: 1.8rem;
    color: #263238;
}

.modules {
    margin-top: 2rem;
}

.module {
    background-color: #fff;
    border-left: 5px solid #0288d1;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: 8px;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.module:hover {
    transform: translateY(-5px);
}

.module h3 {
    margin-bottom: 0.5rem;
}

.module a {
    display: inline-block;
    margin-top: 0.5rem;
    color: #01579b;
    text-decoration: none;
    font-weight: bold;
}

.module a:hover {
    text-decoration: underline;
}

.footer {
    text-align: center;
    background: #263238;
    color: white;
    padding: 1rem;
    margin-top: 2rem;
}