/* Dark Mode Styles */
:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-color: #e0e0e0;
    --accent-color: #4a8cff;
    --border-color: #333;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

header {
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    background-color: var(--card-bg);
    padding: 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.header-content h1 {
    color: var(--accent-color);
    margin: 0;
    font-size: 1.8rem;
}

.baseline {
    color: #aaa;
    margin: 0.2rem 0 0 0;
    font-size: 0.9rem;
    font-style: italic;
}

.search-container {
    display: flex;
    align-items: center;
}

#search-input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px 0 0 4px;
    background-color: var(--card-bg);
    color: var(--text-color);
    outline: none;
    min-width: 250px;
}

#search-button {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-left: none;
    border-radius: 0 4px 4px 0;
    background-color: var(--accent-color);
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#search-button:hover {
    background-color: #3a6bc8;
}

header h1 {
    color: var(--accent-color);
    margin: 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.article-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.article-card h2 {
    color: var(--accent-color);
    margin-top: 0;
}

.excerpt {
    color: #aaa;
    margin-bottom: 1rem;
}

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

.read-more:hover {
    background-color: #3a6bc8;
}

footer {
    text-align: center;
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
    color: #888;
}

/* Article Page Styles */
.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

.article-content h1 {
    color: var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
}

.article-content p {
    margin-bottom: 1rem;
}

.back-link {
    display: inline-block;
    margin-bottom: 1rem;
    color: var(--accent-color);
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}