/**
 * Article Page Styles
 * Bootstrap-first approach with minimal custom CSS
 */

/* Article hero section */
.article-hero {
    height: 70vh;
    width: 100%;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 70%;
    background: linear-gradient(to bottom,
            rgba(0, 0, 0, 0) 0%,
            rgba(0, 0, 0, 0.2) 40%,
            rgba(0, 0, 0, 0.8) 70%);
}

.hero-content {
    position: absolute;
    bottom: 10%;
    left: 0;
    width: 100%;
    text-align: center;
}

.hero-content h1 {
    color: #fff;
    font-size: 5em;
    font-weight: 700;
    text-transform: uppercase;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    margin: 0;
    padding: 0 20px;
}

@media (min-width: 1024px) {
    .hero-content h1 {
        font-size: 10em;
    }
}

/* Article filters */
.article-filters {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    border: 1px solid #666;
    background: transparent;
    color: #666;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    border-radius: 0;
}

.filter-btn:hover {
    border-color: #333;
    color: #333;
}

.filter-btn.active {
    background: #333;
    color: white;
    border-color: #333;
}

@media (max-width: 768px) {
    .article-filters {
        gap: 10px;
    }

    .filter-btn {
        padding: 6px 15px;
        font-size: 14px;
    }
}

/* Article card transitions */
.article-card {
    transition: opacity 0.3s ease-in-out;
}