:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-color: #1f2937;
    --bg-color: #f3f4f6;
    --card-bg: #ffffff;
    --footer-bg: #111827;
    --footer-text: #9ca3af;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: var(--card-bg);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    padding: 1rem 0;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-links a {
    margin-left: 1.5rem;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

main {
    flex: 1;
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
    width: 100%;
}

.hero {
    text-align: center;
    padding: 4rem 1rem;
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.hero p {
    font-size: 1.1rem;
    color: #4b5563;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 0.375rem;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.2s;
}

.cta-button:hover {
    background-color: var(--secondary-color);
}

.content-section {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.content-section h2 {
    margin-bottom: 1rem;
    color: var(--text-color);
}

.content-section p {
    margin-bottom: 1rem;
}

footer {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    padding: 2rem 0;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    text-align: center;
}

.footer-links {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--footer-text);
    text-decoration: none;
    margin: 0 0.5rem;
}

.footer-links a:hover {
    color: white;
}

@media (max-width: 640px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    nav {
        flex-direction: column;
    }
    
    .nav-links {
        margin-top: 1rem;
    }
    
    .nav-links a {
        margin: 0 0.75rem;
    }
}