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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

/* Header */
header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #e0e8e0;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: #2d6a4f;
    text-decoration: none;
    flex-shrink: 0;
}

.site-title:hover {
    color: #1b4332;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    flex: 1;
}

.nav-menu a {
    text-decoration: none;
    color: #555;
    font-weight: 500;
}

.nav-menu a:hover {
    color: #2d6a4f;
}

.lang-link {
    background-color: #2d6a4f;
    color: white;
    padding: 0.3rem 0.75rem;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.lang-link:hover {
    background-color: #1b4332;
}

/* Main content */
main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
    min-height: calc(100vh - 130px);
}

/* Home page */
.hero {
    text-align: center;
    padding: 4rem 2rem;
    border-bottom: 1px solid #e0e8e0;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 2.5rem;
    color: #1b4332;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.125rem;
    color: #555;
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background-color: #2d6a4f;
    color: white;
    padding: 0.75rem 1.75rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.2s ease;
}

.btn:hover {
    background-color: #1b4332;
}

/* Features */
.features {
    margin-bottom: 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    border: 1px solid #e0e8e0;
    border-radius: 8px;
    padding: 1.5rem;
    background-color: #f8faf8;
}

.feature-card h3 {
    color: #2d6a4f;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.feature-card p {
    color: #555;
    font-size: 0.95rem;
}

/* How it works */
.how-it-works {
    max-width: 720px;
    margin: 0 auto 3rem;
    padding: 2rem;
    background-color: #f8faf8;
    border-radius: 8px;
    border: 1px solid #e0e8e0;
}

.how-it-works h2 {
    color: #1b4332;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.how-it-works p {
    color: #555;
    margin-bottom: 0.75rem;
}

.how-it-works p:last-child {
    margin-bottom: 0;
}

/* CTA */
.cta {
    text-align: center;
    padding: 2rem;
}

.cta h2 {
    color: #1b4332;
    margin-bottom: 0.75rem;
    font-size: 1.5rem;
}

.cta p {
    color: #555;
    margin-bottom: 1.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Single pages */
.page {
    max-width: 720px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e0e8e0;
}

.page-header h1 {
    font-size: 2rem;
    color: #1b4332;
}

.page-content {
    color: #444;
    line-height: 1.8;
}

.page-content h2 {
    color: #1b4332;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    font-size: 1.4rem;
}

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

.page-content ul, .page-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.page-content li {
    margin-bottom: 0.25rem;
}

.page-content a {
    color: #2d6a4f;
}

.page-content a:hover {
    color: #1b4332;
}

/* Footer */
footer {
    background-color: #f8f9fa;
    border-top: 1px solid #e0e8e0;
    padding: 1.5rem 0;
    margin-top: 3rem;
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.footer-container p {
    color: #666;
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.footer-container a {
    color: #2d6a4f;
    text-decoration: none;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-wrap: wrap;
        gap: 1rem;
        padding: 1rem 1.5rem;
    }

    .nav-menu {
        gap: 1rem;
    }

    main {
        padding: 1.5rem;
    }

    .hero {
        padding: 2.5rem 1rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .how-it-works {
        padding: 1.5rem;
    }
}