/* ============================================
   TRADE CSS - Comercio Exterior Page Styles
   ============================================ */

.trade-section {
    padding: var(--spacing-2xl) 0;
}

.trade-intro {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    padding: var(--spacing-xl) var(--spacing-2xl);
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
}

.trade-intro h2 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-3xl);
}

.trade-intro p {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* Search */
.trade-search {
    margin-bottom: var(--spacing-2xl);
}

.trade-search .search-form {
    display: flex;
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

.trade-search .search-form .form-control {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-base);
}

.trade-search .search-form .form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 51, 153, 0.1);
}

/* Posts Grid */
.trade-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-2xl);
}

/* Post Card */
.trade-card {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.trade-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.trade-card-image {
    position: relative;
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--color-surface);
}

.trade-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.trade-card:hover .trade-card-image img {
    transform: scale(1.05);
}

.trade-card-body {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.trade-card-body h3 {
    margin: 0 0 var(--spacing-sm);
    font-size: var(--font-size-xl);
    line-height: var(--line-height-tight);
}

.trade-card-body h3 a {
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-base);
}

.trade-card-body h3 a:hover {
    color: var(--color-primary);
}

.trade-card-subtitle {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
}

.trade-card-excerpt {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.trade-card-btn {
    display: inline-block;
    margin-top: var(--spacing-md);
    padding: 8px 20px;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-align: center;
    border-radius: var(--radius-md);
    transition: background var(--transition-base), transform var(--transition-base);
    align-self: flex-start;
}

.trade-card-btn:hover {
    transform: translateY(-1px);
}

.trade-card-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    font-size: var(--font-size-xs);
    color: var(--color-text-light);
}

.trade-card-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* Detail page */
.trade-detail {
    padding: var(--spacing-2xl) 0;
}

.trade-detail-header {
    margin-bottom: var(--spacing-xl);
}

.trade-detail-header h1 {
    font-size: var(--font-size-4xl);
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-tight);
}

.trade-detail-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.trade-detail-meta {
    display: flex;
    gap: var(--spacing-lg);
    color: var(--color-text-light);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-md);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.trade-detail-image {
    margin-bottom: var(--spacing-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.trade-detail-image img {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    display: block;
}

.trade-detail-content {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-text);
}

.trade-detail-content h2 {
    color: var(--color-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.trade-detail-content h3 {
    color: var(--color-primary-dark);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.trade-detail-content p {
    margin-bottom: var(--spacing-md);
}

.trade-detail-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
}

.trade-detail-content ul,
.trade-detail-content ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.trade-detail-content li {
    margin-bottom: var(--spacing-xs);
}

/* Gallery */
.trade-gallery {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
}

.trade-gallery h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-lg);
}

.trade-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.trade-gallery-thumb {
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.trade-gallery-thumb:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.trade-gallery-grid img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    display: block;
}

/* Lightbox */
.trade-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: lightbox-fade-in 0.2s ease;
}

@keyframes lightbox-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

.trade-lightbox-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.trade-lightbox-content img {
    max-width: 90vw;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-md);
    user-select: none;
}

.trade-lightbox-close {
    position: fixed;
    top: 20px;
    right: 24px;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    z-index: 10001;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s;
}

.trade-lightbox-close:hover {
    opacity: 0.7;
}

.trade-lightbox-prev,
.trade-lightbox-next {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: white;
    font-size: 2.5rem;
    cursor: pointer;
    z-index: 10001;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.trade-lightbox-prev:hover,
.trade-lightbox-next:hover {
    background: rgba(255, 255, 255, 0.3);
}

.trade-lightbox-prev {
    left: 20px;
}

.trade-lightbox-next {
    right: 20px;
}

.trade-lightbox-counter {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    background: rgba(0, 0, 0, 0.5);
    padding: 6px 16px;
    border-radius: 20px;
}

@media (max-width: 768px) {
    .trade-lightbox-prev,
    .trade-lightbox-next {
        width: 40px;
        height: 40px;
        font-size: 2rem;
    }
    .trade-lightbox-prev { left: 10px; }
    .trade-lightbox-next { right: 10px; }
}

/* Related posts */
.trade-related {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-surface);
}

.trade-related h2 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

/* Pagination */
.trade-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

/* No content */
.trade-empty {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

/* Responsive */
@media (max-width: 768px) {
    .trade-grid {
        grid-template-columns: 1fr;
    }

    .trade-card-image {
        height: 180px;
    }

    .trade-detail-header h1 {
        font-size: var(--font-size-3xl);
    }

    .trade-search .search-form {
        flex-direction: column;
    }

    .trade-gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    }
}