:root {
    --primary-color: #003366; /* Dark blue */
    --secondary-color: #f0f2f5; /* Light gray */
    --text-color: #333; /* Dark gray */
    --white-color: #fff; /* White */
    --shadow-color: rgba(0, 0, 0, 0.1); /* Light shadow */
    --hover-shadow-color: rgba(0, 0, 0, 0.15); /* Slightly darker shadow on hover */
}


body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--secondary-color);
    color: var(--text-color);
}

header {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 1rem;
    text-align: center;
    box-shadow: 0 4px 6px var(--shadow-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

header .logo {
    font-size: 1.5rem;
    font-weight: bold;
}

header nav {
    display: flex;
    gap: 1rem;
}

header nav a {
    color: var(--white-color);
    text-decoration: none;
    font-weight: bold;
}

header nav a:hover {
    text-decoration: underline;
}

main {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

#articles-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.article {
    background-color: var(--white-color);
    border-radius: 8px;
    box-shadow: 0 4px 8px var(--shadow-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}

.article:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px var(--hover-shadow-color);
}

.article h2 {
    margin: 0.5rem 1rem;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.article img {
    width: 100%;
    height: 200px;
    border-radius: 8px 8px 0 0;
}

.article p {
    margin: 1rem;
    line-height: 1.6;
}

.article a {
    display: inline-block;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
    margin: 0 1rem 1rem 1rem;
}

.article a:hover {
    text-decoration: underline;
}

.pagination {
    text-align: center;
    margin: 2rem 0;
}

.pagination button {
    background-color: var(--primary-color);
    color: var(--white-color);
    border: none;
    border-radius: 4px;
    padding: 0.75rem 1.5rem;
    margin: 0 0.5rem;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.pagination button:hover:not(:disabled) {
    background-color: #990000;
    transform: translateY(-2px);
}

.pagination button:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

footer {
    background-color: var(--primary-color);
    color: var(--white-color);
    text-align: center;
    padding: 1rem;
    margin-top: 2rem;
    z-index: 1000;
}

footer .social-icons {
    margin: 0.5rem 0;
}

footer .social-icons a {
    color: var(--white-color);
    text-decoration: none;
    margin: 0 0.5rem;
}

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