/* ============================================================
   ARTICLES PAGE — Premium Catalog Styles
   ============================================================ */

/* PAGE HEADER BANNER */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 60%, #0a1628 100%);
    color: var(--white);
    padding: 4rem 1.5rem 3.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 230px;
    scroll-margin-top: var(--header-height);
}

.page-header::before {
    content: '';
    position: absolute;
    top: -30%;
    right: -15%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 87, 34, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.page-header-content {
    max-width: 680px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    letter-spacing: -0.5px;
}

.page-header p {
    font-size: 1.1rem;
    opacity: 0.85;
    line-height: 1.5;
}

/* BUTTON OUTLINE STYLE */
.btn-outline {
    background-color: transparent;
    border: 1.5px solid var(--gray-300);
    color: var(--text-primary);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background-color: var(--primary-ultra-light);
}

/* FILTER BAR */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 2.5rem;
    justify-content: center;
    min-height: 38px;
}

.filter-btn {
    background-color: var(--white);
    border: 1.5px solid var(--gray-200);
    color: var(--text-secondary);
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.filter-btn i {
    font-size: 0.8rem;
}

.filter-btn:hover {
    background-color: var(--gray-100);
    border-color: var(--gray-300);
    color: var(--text-primary);
}

.filter-btn.active {
    background-color: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(0, 87, 184, 0.25);
}

/* ARTICLE ACTIONS */
.article-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--gray-200);
}

.article-action-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    min-height: 38px;
    padding: 0.55rem 0.85rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-pill);
    background: var(--white);
    color: var(--text-primary);
    font: inherit;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.article-action-button:hover,
.article-action-button.saved {
    border-color: var(--accent);
    color: var(--accent);
    background: #fff7f3;
}

.article-action-primary {
    border-color: var(--primary);
    background: var(--primary);
    color: var(--white);
}

.article-action-primary:hover {
    border-color: var(--primary-dark);
    background: var(--primary-dark);
    color: var(--white);
}

.article-action-status {
    flex-basis: 100%;
    min-height: 1.1rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.article-action-status.visible {
    opacity: 1;
}

.article-wishlist-overlay {
    position: fixed;
    inset: 0;
    z-index: 1200;
    background: rgba(15, 23, 42, 0.42);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-mid);
}

.article-wishlist-overlay.open {
    opacity: 1;
    visibility: visible;
}

.article-wishlist-panel {
    width: min(400px, 100%);
    height: 100%;
    margin-left: auto;
    padding: 1.25rem;
    background: var(--white);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.article-wishlist-overlay.open .article-wishlist-panel {
    transform: translateX(0);
}

.article-wishlist-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--gray-200);
}

.article-wishlist-header h2 {
    margin: 0;
    font-size: 1.3rem;
}

.article-wishlist-close,
.article-wishlist-item button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
}

.article-wishlist-close {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 1.1rem;
}

.article-wishlist-close:hover,
.article-wishlist-item button:hover {
    color: var(--accent);
    background: var(--gray-100);
}

.article-wishlist-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding-top: 1rem;
    overflow-y: auto;
    max-height: calc(100vh - 5rem);
}

.article-wishlist-item {
    display: grid;
    grid-template-columns: 64px 1fr 32px;
    gap: 0.75rem;
    align-items: center;
    padding: 0.65rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
}

.article-wishlist-item img {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.article-wishlist-item div {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.article-wishlist-item a {
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.3;
}

.article-wishlist-item span {
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 700;
}

.article-wishlist-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 4rem 1rem;
    color: var(--text-secondary);
    text-align: center;
}

.article-wishlist-empty i {
    margin-bottom: 0.5rem;
    color: var(--gray-300);
    font-size: 2.5rem;
}

/* ============================================================
   CATALOG CARDS — Full-Width Vertical Cards for Articles Page
   ============================================================ */
.articles-catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.75rem;
    min-height: 220px;
}

.catalog-card {
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-mid);
    display: flex;
    flex-direction: column;
}

.catalog-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
    border-color: transparent;
}

.catalog-card-img-link {
    position: relative;
    display: block;
    overflow: hidden;
    height: 220px;
    aspect-ratio: 4 / 3;
}

.catalog-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.catalog-card:hover .catalog-card-img {
    transform: scale(1.06);
}

.catalog-card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: var(--primary);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.catalog-card .card-wishlist {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    z-index: 2;
}

.catalog-card .card-wishlist:hover {
    background: var(--white);
    color: var(--accent);
    transform: scale(1.1);
}

.catalog-card-body {
    padding: 1.25rem 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.catalog-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.35;
}

.catalog-card-title a {
    color: var(--text-primary);
    transition: color var(--transition-fast);
}

.catalog-card-title a:hover {
    color: var(--primary);
}

.catalog-card-excerpt {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.55;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.catalog-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--gray-200);
    margin-top: auto;
}

.catalog-card-info {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.catalog-card-duration {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.catalog-card-duration i {
    color: var(--text-muted);
}

.catalog-card-rating {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.catalog-card-rating i {
    color: var(--star-color);
    font-size: 0.75rem;
}

.catalog-card-rating .rating-count {
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 0.15rem;
}

.catalog-card-price {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: right;
}

.catalog-card-price strong {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}

.catalog-card-price span {
    display: block;
}

.catalog-card-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary);
    transition: all var(--transition-fast);
}

.catalog-card-cta i {
    font-size: 0.75rem;
    transition: transform var(--transition-fast);
}

.catalog-card-cta:hover {
    color: var(--primary-dark);
}

.catalog-card-cta:hover i {
    transform: translateX(3px);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .page-header {
        padding: 2.5rem 1rem 2rem;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .articles-catalog-grid {
        grid-template-columns: 1fr;
    }

    .catalog-card-img-link {
        height: 200px;
    }

    .filter-bar {
        justify-content: flex-start;
        gap: 0.5rem;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 0.5rem;
        -webkit-overflow-scrolling: touch;
    }

    .filter-btn {
        flex-shrink: 0;
    }
}

@media (max-width: 520px) {
    .article-actions {
        align-items: stretch;
    }

    .article-action-button {
        flex: 1 1 auto;
    }
}