:root {
    --primary-color: #0078b6;
    --secondary-color: #f0f8ff;
    --accent-color: #ff9933;
    --text-color: #333;
    --light-text: #757575;
    --background: #f5f5f5;
    --card-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background);
}

header {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 2rem 1rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header .subtitle {
    font-size: 1.2rem;
    opacity: 0.8;
}

main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.feed-selector {
    margin-bottom: 2rem;
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--card-shadow);
}

.feed-selector h2 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

button {
    background-color: var(--secondary-color);
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

button:hover {
    background-color: var(--primary-color);
    color: white;
}

button.active {
    background-color: var(--primary-color);
    color: white;
}

.news-container {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
}
/*
.news-source img{
    width: 5%;
    height: 5%;
}
*/

.article {
    border-bottom: 1px solid #eee;
    padding: 1.5rem 0;
}

.article:last-child {
    border-bottom: none;
}

.article h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.article-meta {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--light-text);
}

.article-date {
    margin-right: 1rem;
}

.article-source {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: 500;
}

.article-description {
    margin-bottom: 1rem;
    line-height: 1.7;
}

.article-link {
    display: inline-block;
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: none;
    transition: color 0.3s ease;
}

.article-link:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 0;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(0, 120, 182, 0.2);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 1.5rem;
    margin-top: 2rem;
}

footer p {
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .buttons {
        flex-direction: column;
    }
    
    button {
        width: 100%;
    }
}