:root {
    --primary-blue: #1e3a8a;
    --secondary-blue: #3b82f6;
    --light-blue: #dbeafe;
    --dark-gray: #374151;
    --medium-gray: #6b7280;
    --light-gray: #f3f4f6;
    --white: #ffffff;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--dark-gray);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Merriweather', serif;
    font-weight: 700;
}

.bg-primary {
    background-color: var(--primary-blue) !important;
}

.text-primary {
    color: var(--primary-blue) !important;
}

.btn-primary {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-primary:hover {
    background-color: var(--secondary-blue);
    border-color: var(--secondary-blue);
}

.btn-outline-primary {
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-outline-primary:hover {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.hero-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
}

.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--light-gray);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15) !important;
}

.navbar-brand {
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--light-blue) !important;
}

.markdown-body {
    font-family: 'Open Sans', sans-serif;
    color: var(--dark-gray);
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.markdown-body p {
    margin-bottom: 1rem;
}

.markdown-body a {
    color: var(--secondary-blue);
    text-decoration: none;
}

.markdown-body a:hover {
    text-decoration: underline;
}

.pagination .page-link {
    color: var(--primary-blue);
    border-color: var(--light-gray);
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.pagination .page-link:hover {
    background-color: var(--light-blue);
    border-color: var(--secondary-blue);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 2rem;
    }

    .card {
        margin-bottom: 1.5rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Custom focus styles */
.btn:focus,
.nav-link:focus,
.card:focus {
    outline: 2px solid var(--secondary-blue);
    outline-offset: 2px;
}