:root {
    --primary-color: #003366;
    --secondary-color: #f4f4f4;
    --text-color: #333;
    --accent-color: #0056b3;
    --white: #ffffff;
    --max-width: 1200px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--secondary-color);
}

a {
    text-decoration: none;
    color: var(--primary-color);
}

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

/* Header */
header {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--white);
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin-left: 20px;
}

.nav-links a {
    color: var(--white);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: #ffd700;
}

/* Hero Section */
.hero {
    background-color: var(--white);
    padding: 3rem 0;
    text-align: center;
    border-bottom: 1px solid #ddd;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.hero p {
    font-size: 1.2rem;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

/* Main Content */
main {
    padding: 2rem 0;
    min-height: 60vh;
}

section {
    margin-bottom: 3rem;
    background: var(--white);
    padding: 2rem;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--secondary-color);
}

/* News & Publications */
.news-article, .publication-item {
    border-bottom: 1px solid #eee; 
    padding-bottom: 2rem; 
    margin-bottom: 2rem;
}

.news-article:last-child, .publication-item:last-child {
    border-bottom: none;
}

.news-title a {
    color: var(--primary-color);
    text-decoration: none;
}

.news-title a:hover {
    text-decoration: underline;
}

.pagination {
    margin-top: 2rem; 
    text-align: center;
}

.pagination a, .pagination span {
    display: inline-block;
    padding: 0.5rem 1rem; 
    border: 1px solid #ddd; 
    margin: 0 0.2rem;
    color: var(--text-color);
}

.pagination span.active {
    background: var(--primary-color); 
    color: var(--white);
    border-color: var(--primary-color);
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: auto;
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
    }
    
    .nav-links {
        margin-top: 1rem;
        flex-direction: column;
        text-align: center;
    }
    
    .nav-links li {
        margin: 0.5rem 0;
    }
}

/* Grid Layouts */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

/* Card Styles */
.card {
    background: var(--white);
    border: 1px solid #eee;
    border-radius: 5px;
    padding: 1.5rem;
    transition: transform 0.2s;
}

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

.card h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.date {
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    display: block;
}

/* Member Styles */
.member-card {
    text-align: center;
}

.member-photo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    background-color: #ddd;
}