:root {
    --primary-color: #0d5c3a;
    --secondary-color: #1b8a5a;
    --background-color: #f4f7f5;
    --text-color: #2c3e50;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    background-color: var(--background-color);
    color: var(--text-color);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--primary-color);
    color: white;
    padding: 60px 0;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 700px;
    margin: 0 auto;
}

main {
    padding: 40px 0;
}

.intro {
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.intro h2 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.card {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.01);
}

.card h3 {
    margin-bottom: 12px;
    color: var(--secondary-color);
}

.content-block {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.content-block h2 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

footer {
    background-color: #2d3748;
    color: #e2e8f0;
    padding: 40px 0;
    text-align: center;
    font-size: 0.9rem;
    margin-top: 60px;
}

.footer-links {
    margin-bottom: 15px;
}

.footer-links a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 10px;
}

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

@media (max-width: 768px) {
    header {
        padding: 40px 0;
    }
    header h1 {
        font-size: 2rem;
    }
}