/*!
 * Portfolio Styles for StDesignGraphic
 * Modern grid layouts and portfolio displays
 */

/* Modern Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.portfolio-item {
    position: relative;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.portfolio-item:hover {
    transform: translateY(-4px);
    border-color: #ddd;
    box-shadow: 0 8px 24px rgba(0,0,0,0.06);
}

.portfolio-item-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
    background: #f5f5f5;
}

.portfolio-item-image a {
    display: block;
    height: 100%;
}

.portfolio-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.portfolio-item:hover .portfolio-item-image img {
    transform: scale(1.05);
}

.portfolio-item-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.portfolio-item-category {
    margin-bottom: 12px;
}

.portfolio-item-category span {
    display: inline-block;
    padding: 4px 12px;
    background: #f5f5f5;
    color: #666;
    font-size: 12px;
    font-weight: 500;
    border-radius: 4px;
    text-decoration: none;
    text-transform: capitalize;
}

.portfolio-item-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 12px;
    line-height: 1.3;
}

.portfolio-item-title a {
    color: #111;
    text-decoration: none;
    transition: color 0.2s;
}

.portfolio-item-title a:hover {
    color: #6B4CE6;
}

.portfolio-item-excerpt {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
    flex: 1;
}

.portfolio-item-meta {
    display: flex;
    gap: 20px;
    padding-top: 16px;
    border-top: 1px solid #f0f0f0;
    font-size: 13px;
    color: #999;
    margin-top: auto;
}

.portfolio-item-meta strong {
    color: #666;
    font-weight: 500;
}

/* Portfolio Filter Buttons */
.portfolio-filter {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 48px;
    padding: 0;
}

.filter-button {
    background: transparent;
    color: #666;
    border: 1px solid #ddd;
    padding: 10px 24px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.filter-button:hover {
    border-color: #999;
    color: #333;
}

.filter-button.active {
    background: #111;
    color: #fff;
    border: none;
}

/* Portfolio Empty State */
.portfolio-empty {
    text-align: center;
    padding: 80px 20px;
    color: #666;
}

.portfolio-empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.portfolio-empty-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: #333;
    margin: 0 0 12px;
}

.portfolio-empty-text {
    font-size: 1rem;
    color: #666;
    margin: 0;
}

/* Single Portfolio */
.single-portfolio-header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto var(--spacing-3xl);
}

.single-portfolio-title {
    font-size: var(--font-4xl);
    margin-bottom: var(--spacing-md);
}

.single-portfolio-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--light-gray);
    border-radius: var(--radius-lg);
}

.meta-item {
    text-align: center;
}

.meta-label {
    display: block;
    font-size: var(--font-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-light);
    margin-bottom: 0.25rem;
    font-weight: var(--font-semibold);
}

.meta-value {
    display: block;
    font-size: var(--font-base);
    color: var(--text-color);
    font-weight: var(--font-semibold);
}

.single-portfolio-featured {
    margin-bottom: var(--spacing-3xl);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.single-portfolio-content {
    max-width: 800px;
    margin: 0 auto var(--spacing-3xl);
    font-size: var(--font-lg);
    line-height: 1.8;
}

.single-portfolio-content h2,
.single-portfolio-content h3 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
}

.single-portfolio-content img {
    border-radius: var(--radius-lg);
    margin: var(--spacing-xl) 0;
}

.portfolio-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-3xl) 0;
}

.portfolio-gallery-item {
    aspect-ratio: 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
    cursor: pointer;
}

.portfolio-gallery-item:hover {
    transform: scale(1.02);
}

.portfolio-gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.portfolio-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-3xl);
    padding-top: var(--spacing-2xl);
    border-top: 2px solid var(--light-gray);
}

.portfolio-nav-item {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    background: var(--light-gray);
    transition: all var(--transition-base);
}

.portfolio-nav-item:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateX(-5px);
}

.portfolio-nav-item.next:hover {
    transform: translateX(5px);
}

.portfolio-nav-item .nav-label {
    font-size: var(--font-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.7;
}

.portfolio-nav-item .nav-title {
    font-size: var(--font-base);
    font-weight: var(--font-semibold);
}

/* Masonry Layout */
.portfolio-masonry {
    column-count: 3;
    column-gap: var(--spacing-xl);
}

.portfolio-masonry .portfolio-item {
    display: inline-block;
    width: 100%;
    margin-bottom: var(--spacing-xl);
}

/* List Layout */
.portfolio-list .portfolio-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.portfolio-list .portfolio-item:nth-child(even) .portfolio-item-image {
    order: 2;
}

/* Responsive */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: var(--spacing-lg);
    }
    
    .portfolio-masonry {
        column-count: 2;
    }
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-masonry {
        column-count: 1;
    }
    
    .portfolio-list .portfolio-item {
        grid-template-columns: 1fr;
    }
    
    .portfolio-list .portfolio-item:nth-child(even) .portfolio-item-image {
        order: 1;
    }
    
    .single-portfolio-meta {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .portfolio-navigation {
        flex-direction: column;
    }
}

/* Loading States */
.portfolio-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.portfolio-loading::after {
    content: '';
    width: 50px;
    height: 50px;
    border: 4px solid var(--light-gray);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Empty State */
.portfolio-empty {
    text-align: center;
    padding: var(--spacing-4xl) var(--spacing-lg);
}

.portfolio-empty-icon {
    font-size: 4rem;
    color: var(--medium-gray);
    margin-bottom: var(--spacing-lg);
}

.portfolio-empty-title {
    font-size: var(--font-2xl);
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.portfolio-empty-text {
    color: var(--text-light);
    max-width: 500px;
    margin: 0 auto;
}