/* articles.css - Styles for the main articles list page */

.articles-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 2rem auto;
    padding: 0 5%;
}

.articles-intro h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
    color: var(--text-color);
    letter-spacing: -1px;
}

.articles-intro p {
    font-size: 1.1rem;
    color: var(--text-muted-color);
    line-height: 1.7;
}

/* --- Filter controls styling --- */
.filter-controls {
    max-width: 900px;
    margin: 0 auto 3rem auto;
    padding: 0 5%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.search-wrapper {
    position: relative;
}

.search-wrapper .fa-search {
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    color: var(--text-muted-color);
}

#search-input {
    width: 100%;
    padding: 12px 15px 12px 40px;
    font-size: 1rem;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    border-radius: 8px;
    transition: border-color 0.2s;
}

#search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.theme-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.filter-btn {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-muted-color);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn:hover {
    color: var(--text-color);
    border-color: var(--text-muted-color);
}

.filter-btn.active {
    background-color: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
}

/* --- Article list styling --- */
#article-list-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 5%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.loading-message, .no-results-message {
    color: var(--text-muted-color);
    text-align: center;
    font-size: 1.1rem;
    padding: 2rem;
}

.article-list-item {
    display: block;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.article-list-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.article-list-item h2 {
    font-size: 1.7rem;
    margin: 0 0 0.5rem 0;
    color: var(--primary-color);
}

.article-list-item .subtitle {
    font-size: 1.1rem;
    color: var(--text-muted-color);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-muted-color);
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    margin-top: 1.5rem;
}

.article-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background-color: var(--border-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}