:root {
    box-sizing: border-box;
    font-size: 16px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.site-header {
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: #666666;
    font-weight: 500;
    font-size: 16px;
    transition: color 0.3s ease;
}

.nav-link:hover, 
.nav-link.active {
    color: #007bff;
}

.btn-action {
    display: inline-block;
    background-color: #007bff;
    color: #ffffff;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: 500;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn-action:hover {
    background-color: #0056b3;
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

.main-content {
    background-color: #f8f9fa;
    min-height: calc(100vh - 80px);
}

.hero-section {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    color: #ffffff;
    padding: 80px 15px;
    text-align: center;
}

.hero-container {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 18px;
    color: #94a3b8;
    line-height: 1.6;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.btn-primary {
    display: inline-block;
    background-color: #007bff;
    color: #ffffff;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    background-color: #0056b3;
}

.btn-secondary {
    display: inline-block;
    background-color: transparent;
    color: #ffffff;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 500;
    border: 1px solid #475569;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.btn-secondary:hover {
    background-color: #334155;
    border-color: #64748b;
}

.features-section {
    padding: 80px 15px;
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    gap: 30px;
}

.feature-card {
    background-color: #ffffff;
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    flex: 1;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 32px;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 20px;
    color: #1e293b;
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-text {
    font-size: 15px;
    color: #64748b;
    line-height: 1.6;
}

@media (max-width: 992px) {
    .features-container {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
}

.site-footer {
    background-color: #0f172a;
    color: #94a3b8;
    padding: 30px 15px;
    border-top: 1px solid #1e293b;
    font-size: 14px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-info p {
    margin-bottom: 5px;
}

.footer-info p:last-child {
    margin-bottom: 0;
}

.footer-author {
    color: #64748b;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-link {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #007bff;
}

@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
}