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

body {
    font-family: Georgia, 'Times New Roman', serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

nav {
    padding: 20px;
    text-align: center;
}

nav h1 {
    font-size: 2em;
    margin-bottom: 5px;
}

nav h1 a {
    color: #2c5282;
    text-decoration: none;
}

nav h1 a:hover {
    color: #1a365d;
}

.tagline {
    color: #666;
    font-style: italic;
}

main {
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
}

.hero {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px 0;
}

.hero h2 {
    font-size: 2.5em;
    color: #2c5282;
    margin-bottom: 10px;
}

.hero h3 {
    font-size: 1.5em;
    color: #666;
    font-weight: normal;
}

.content {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.content img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin: 20px 0;
}

.content h1, .content h2 {
    color: #2c5282;
    margin: 30px 0 15px 0;
}

.content p {
    margin-bottom: 15px;
}

.content em {
    font-style: italic;
}

.link-section {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.main-link {
    display: block;
    padding: 20px;
    background-color: #edf2f7;
    color: #2c5282;
    text-decoration: none;
    border-radius: 4px;
    font-size: 1.2em;
    text-align: center;
    transition: background-color 0.3s;
}

.main-link:hover {
    background-color: #e2e8f0;
}

.sidebar {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    height: fit-content;
}

.sidebar h3 {
    color: #2c5282;
    margin-bottom: 15px;
    font-size: 1.3em;
}

.sidebar ul {
    list-style: none;
}

.sidebar li {
    margin-bottom: 8px;
}

.sidebar ul ul {
    margin-left: 20px;
    margin-top: 8px;
}

.sidebar a {
    color: #2c5282;
    text-decoration: none;
}

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

footer {
    background-color: #2c5282;
    color: #fff;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

@media (max-width: 768px) {
    main {
        grid-template-columns: 1fr;
    }
    
    .hero h2 {
        font-size: 1.8em;
    }
    
    .hero h3 {
        font-size: 1.2em;
    }
    
    .content {
        padding: 20px;
    }
}