:root {
    --primary-color: #003298;
    --text-color: #334155;
    --heading-color: #1e293b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --footer-bg: #f1f5f9;
    --max-width: 900px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
}

header {
    background-color: #ffffff;
    padding: 2rem 1rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 3rem;
}

header h1 {
    color: var(--primary-color);
    font-size: 1.75rem;
    font-weight: 700;
}

main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    margin-bottom: 4rem;
}

.content-wrapper {
    padding: 3rem 2rem;
}

h2 {
    color: var(--heading-color);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 1.1rem;
    color: var(--primary-color);
}

p {
    margin-bottom: 1.25rem;
    text-align: justify;
}

ul, ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
}

footer {
    background-color: var(--footer-bg);
    padding: 3rem 1rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

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

.copyright {
    font-size: 0.875rem;
    color: #64748b;
}

@media (max-width: 640px) {
    .content-wrapper {
        padding: 2rem 1rem;
    }
    
    header {
        margin-bottom: 1.5rem;
        padding: 1.5rem 1rem;
    }
}