/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.site-header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid #1a2f5a;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 20px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #ffffff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.5px;
}

/* Navigation Styles */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.main-nav a {
    color: #e8f0f7;
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
}

.main-nav a:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
}

.main-nav a.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.15);
    font-weight: 600;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #ffffff;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.main-nav a:hover::after {
    width: 80%;
}

/* Main Content Area */
.content {
    padding: 3rem 0;
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 3rem 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    margin-bottom: 3rem;
    border: 1px solid #e1e8ed;
}

.hero h2 {
    font-size: 2.5rem;
    color: #1e3c72;
    margin-bottom: 1rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.lead {
    font-size: 1.25rem;
    color: #5a6c7d;
    max-width: 800px;
    margin: 0 auto;
    font-weight: 400;
    line-height: 1.8;
}

/* Main Content Section */
.main-content {
    background: #ffffff;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border: 1px solid #e1e8ed;
}

.main-content article {
    max-width: 900px;
    margin: 0 auto;
}

.main-content h3 {
    font-size: 1.75rem;
    color: #1e3c72;
    margin: 2.5rem 0 1.25rem 0;
    font-weight: 600;
    padding-bottom: 0.75rem;
    border-bottom: 3px solid #e8f0f7;
    letter-spacing: -0.3px;
}

.main-content h3:first-child {
    margin-top: 0;
}

.main-content p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: #34495e;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.main-content p:last-child {
    margin-bottom: 0;
}

/* Footer Styles */
.site-footer {
    background: linear-gradient(135deg, #2a5298 0%, #1e3c72 100%);
    color: #e8f0f7;
    padding: 2rem 0;
    margin-top: 4rem;
    border-top: 3px solid #1a2f5a;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.1);
}

.site-footer p {
    text-align: center;
    font-size: 0.9375rem;
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .site-header .container {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1.25rem 20px;
    }

    .logo {
        font-size: 1.5rem;
    }

    .main-nav ul {
        gap: 1rem;
    }

    .main-nav a {
        font-size: 0.9375rem;
        padding: 0.5rem 0.75rem;
    }

    .hero h2 {
        font-size: 1.875rem;
    }

    .lead {
        font-size: 1.0625rem;
    }

    .main-content {
        padding: 2rem 1.5rem;
    }

    .main-content h3 {
        font-size: 1.5rem;
    }

    .main-content p {
        font-size: 1rem;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .main-nav ul {
        flex-direction: column;
        gap: 0.5rem;
        align-items: center;
    }

    .hero {
        padding: 2rem 1rem;
    }

    .hero h2 {
        font-size: 1.5rem;
    }

    .main-content {
        padding: 1.5rem 1rem;
    }
}