:root {
    --primary-color: #2c3e50;
    --accent-color: #3498db;
    --text-color: #333;
    --background-color: #f5f6fa;
}

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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

header {
    background-color: var(--primary-color);
    padding: 1rem;
    text-align: center;
}

.hero {
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

.content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.feature-card h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.faq {
    margin: 2rem 0;
}

details {
    background: white;
    padding: 1rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

summary {
    font-weight: bold;
    cursor: pointer;
}

summary:hover {
    color: var(--accent-color);
}

.cta-button {
    display: inline-block;
    background-color: #e74c3c;
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: #c0392b;
}

footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 3rem 1rem;
    margin-top: 2rem;
}

.cta-footer h2 {
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .features {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: 2rem;
    }
}