:root {
    --primary-color: #1a73e8;
    --background-color: #f8f9fa;
    --text-color: #202124;
    --card-background: #ffffff;
    --card-shadow: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

header {
    background-color: var(--card-background);
    box-shadow: var(--card-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
}

h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
}

nav ul li {
    margin-left: 1rem;
}

nav ul li a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s, color 0.3s;
}

nav ul li a:hover, nav ul li a.active {
    background-color: var(--primary-color);
    color: white;
}

main {
    padding: 2rem 0;
}

.loading, .error {
    text-align: center;
    padding: 2rem;
    font-size: 1.2rem;
}

.error {
    color: #d93025;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.news-item {
    background-color: var(--card-background);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: box-shadow 0.3s ease;
}

.news-item:hover {
    box-shadow: 0 14px 28px rgba(0,0,0,0.25), 0 10px 10px rgba(0,0,0,0.22);
}

.news-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.news-content {
    padding: 1rem;
}

.news-item h2 {
    font-size: 1.2rem;
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.news-item p {
    font-size: 0.9rem;
    color: #5f6368;
    margin-bottom: 1rem;
}

.read-more {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: background-color 0.3s;
}

.read-more:hover {
    background-color: #1765cc;
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        align-items: flex-start;
    }

    nav ul {
        flex-wrap: wrap;
        margin-top: 1rem;
    }

    nav ul li {
        margin: 0.25rem 0.5rem 0.25rem 0;
    }
}

@media (max-width: 480px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
}