/* Portfolio - Sotis AI Design System */

/* ==========================================
   Portfolio Container
   ========================================== */

.portfolio-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-md);
    position: relative;
    z-index: 1;
}

.portfolio-header {
    text-align: center;
    margin-bottom: var(--space-md);
    /* Reset inherited header styles from base CSS */
    background: none;
    position: static;
    box-shadow: none;
    padding: 0;
    color: inherit;
}

.portfolio-header h1 {
    color: var(--violet-dark);
    margin-bottom: var(--space-xs);
    font-size: 2.5rem;
}

.portfolio-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ==========================================
   Filters
   ========================================== */

.portfolio-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    justify-content: center;
    margin-bottom: var(--space-lg);
    padding: var(--space-sm);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
}

.filter-btn {
    padding: 0.6rem 1.2rem;
    border: 2px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

.filter-btn:hover {
    border-color: var(--violet-primary);
    background: var(--violet-light);
    color: var(--dark-text);
}

.filter-btn.active {
    background: var(--violet-dark);
    border-color: var(--violet-dark);
    color: var(--white);
}

/* Favorites button - distinct styling with yellow accent */
.filter-btn-favorites {
    border-color: var(--yellow-primary);
    background: var(--yellow-light);
    color: var(--dark-text);
}

.filter-btn-favorites:hover {
    background: var(--yellow-primary);
    border-color: var(--yellow-dark);
    color: var(--dark-text);
}

.filter-btn-favorites.active {
    background: var(--yellow-primary);
    border-color: var(--yellow-dark);
    color: var(--dark-text);
    box-shadow: 0 2px 8px rgba(247, 230, 77, 0.4);
}

/* Dark mode adjustments for favorites button */
[data-theme="dark"] .filter-btn-favorites {
    background: rgba(247, 230, 77, 0.15);
    border-color: var(--yellow-primary);
    color: var(--yellow-primary);
}

[data-theme="dark"] .filter-btn-favorites:hover {
    background: rgba(247, 230, 77, 0.3);
    color: var(--yellow-primary);
}

[data-theme="dark"] .filter-btn-favorites.active {
    background: var(--yellow-primary);
    border-color: var(--yellow-primary);
    color: var(--dark-text);
}

/* ==========================================
   Project Grid
   ========================================== */

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--space-md);
    width: 100%;
    min-height: 400px;
}

.portfolio-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--space-xl);
    color: var(--text-secondary);
}

/* ==========================================
   Project Card
   ========================================== */

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    position: relative;
}

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

.project-card.featured {
    border-color: var(--yellow-primary);
    border-width: 2px;
}

.project-card.featured::before {
    content: '★';
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    background: var(--yellow-primary);
    color: var(--dark-text);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: bold;
    z-index: 1;
}

.project-image-link {
    display: block;
    cursor: pointer;
}

.project-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-base);
}

.project-image-link:hover .project-image img,
.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-content {
    padding: var(--space-sm);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-meta {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-xs);
    flex-wrap: wrap;
}

.project-category {
    background: var(--violet-light);
    color: var(--violet-dark);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

.project-year {
    color: var(--text-secondary);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
}

.project-title {
    font-size: 1.2rem;
    margin-bottom: var(--space-xs);
    line-height: 1.3;
}

.project-title a {
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

.project-title a:hover {
    color: var(--violet-dark);
}

.project-highlights {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: var(--space-sm);
    flex-grow: 1;
}

/* ==========================================
   Tool Tags
   ========================================== */

.project-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: var(--space-sm);
}

.tool-tag {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
}

.tool-tag.more {
    background: var(--violet-light);
    color: var(--violet-dark);
    border-color: var(--violet-primary);
}

/* ==========================================
   Project Links
   ========================================== */

.project-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-top: auto;
    padding-top: var(--space-sm);
    border-top: 1px solid var(--border-color);
}

.project-link {
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    text-decoration: none;
    transition: var(--transition-fast);
    font-weight: 500;
    background: var(--violet-dark);
    color: var(--white);
}

.project-link:hover {
    background: var(--violet-light);
    color: var(--violet-dark);
}

.project-link.details {
    background: transparent;
    color: var(--violet-dark);
    border: 1px solid var(--violet-dark);
}

.project-link.details:hover {
    background: var(--violet-dark);
    color: var(--white);
}

/* ==========================================
   Project Detail Page
   ========================================== */

.portfolio-detail-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-md);
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: var(--space-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.breadcrumb a {
    color: var(--violet-dark);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb .separator {
    margin: 0 0.5rem;
    color: var(--text-secondary);
}

.breadcrumb .current {
    color: var(--text-primary);
}

/* Project Detail Header */
.project-detail-header {
    margin-bottom: var(--space-md);
    padding: var(--space-md);
    background: var(--violet-dark);
    border-radius: var(--radius-md);
    /* Reset inherited header styles from base CSS */
    position: static;
    box-shadow: none;
}

.project-detail-meta {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
    flex-wrap: wrap;
    align-items: center;
}

/* Override category style in detail header */
.project-detail-header .project-category {
    background: var(--violet-light);
    color: var(--violet-dark);
}

.project-featured-badge {
    background: var(--yellow-primary);
    color: var(--dark-text);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
}

.project-detail-title {
    font-size: 2.2rem;
    color: var(--white);
    margin-bottom: var(--space-xs);
    line-height: 1.2;
}

.project-organizations {
    color: var(--violet-light);
    font-size: 1rem;
    font-style: italic;
}

.project-detail-header .project-year {
    color: var(--white);
}

/* Project Detail Image */
.project-detail-image {
    margin-bottom: var(--space-lg);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.project-detail-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Project Sections */
.project-section {
    margin-bottom: var(--space-lg);
}

.project-section h2 {
    font-size: 1.3rem;
    color: var(--violet-dark);
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-xs);
    border-bottom: 2px solid var(--violet-light);
}

.project-section p {
    color: var(--text-primary);
    line-height: 1.7;
}

.project-tools-detail {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-tools-detail .tool-tag {
    font-size: 0.9rem;
    padding: 0.4rem 0.8rem;
}

/* Project Links Detail */
.project-links-detail {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.project-link-detail {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition-fast);
    font-weight: 500;
    background: var(--violet-dark);
    color: var(--white);
}

.project-link-detail:hover {
    background: var(--violet-light);
    color: var(--violet-dark);
}

.link-icon {
    font-size: 1.2rem;
}

/* ==========================================
   Related Projects
   ========================================== */

.related-projects {
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

.related-projects h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.related-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--space-md);
}

.related-project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: var(--transition-fast);
}

.related-project-card:hover {
    border-color: var(--violet-primary);
    transform: translateY(-2px);
}

.related-project-image {
    height: 120px;
    overflow: hidden;
}

.related-project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-project-content {
    padding: var(--space-sm);
}

.related-project-year {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.related-project-content h3 {
    font-size: 1rem;
    margin-top: 0.25rem;
}

.related-project-content a {
    color: var(--text-primary);
    text-decoration: none;
}

.related-project-content a:hover {
    color: var(--violet-dark);
}

/* ==========================================
   Back Link
   ========================================== */

.back-to-portfolio {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--violet-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.back-link:hover {
    color: var(--violet-primary);
}

/* ==========================================
   Responsive
   ========================================== */

@media (max-width: 768px) {
    .portfolio-header h1 {
        font-size: 2rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-filters {
        gap: 0.4rem;
    }

    .filter-btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.85rem;
    }

    .project-detail-title {
        font-size: 1.8rem;
    }

    .project-links-detail {
        flex-direction: column;
    }

    .project-link-detail {
        justify-content: center;
    }

    .related-projects-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .portfolio-container,
    .portfolio-detail-container {
        padding: var(--space-sm);
    }

    .project-content {
        padding: var(--space-xs);
    }

    .project-title {
        font-size: 1.1rem;
    }
}

/* ==========================================
   Clickable Images
   ========================================== */

.clickable-image {
    position: relative;
    cursor: pointer;
}

.clickable-image .image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    opacity: 0;
    transition: var(--transition-fast);
    color: var(--white);
    font-size: 0.9rem;
}

.clickable-image:hover .image-overlay {
    opacity: 1;
}

.clickable-image .zoom-icon {
    font-size: 2rem;
}

/* ==========================================
   Lightbox Modal
   ========================================== */

.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--white);
    font-size: 3rem;
    cursor: pointer;
    z-index: 10000;
    line-height: 1;
    transition: var(--transition-fast);
}

.lightbox-close:hover {
    color: var(--violet-primary);
    transform: scale(1.1);
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
}

.lightbox-caption {
    color: var(--white);
    margin-top: var(--space-sm);
    font-size: 1rem;
    text-align: center;
}

/* ==========================================
   Gallery & Carousel
   ========================================== */

.project-gallery {
    margin-bottom: var(--space-lg);
}

.project-gallery h2 {
    font-size: 1.3rem;
    color: var(--violet-dark);
    margin-bottom: var(--space-sm);
    padding-bottom: var(--space-xs);
    border-bottom: 2px solid var(--violet-light);
}

.gallery-carousel {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.carousel-container {
    flex: 1;
    overflow: hidden;
    border-radius: var(--radius-md);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.carousel-slide {
    min-width: 100%;
    position: relative;
}

.carousel-slide img {
    width: 100%;
    height: 400px;
    object-fit: contain;
    background: var(--bg-secondary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.carousel-slide img:hover {
    opacity: 0.9;
}

.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: var(--white);
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.9rem;
    text-align: center;
}

.carousel-btn {
    background: var(--violet-dark);
    color: var(--white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.carousel-btn:hover {
    background: var(--violet-primary);
    transform: scale(1.1);
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: var(--space-sm);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    border: 2px solid var(--violet-primary);
    background: transparent;
    cursor: pointer;
    transition: var(--transition-fast);
}

.dot:hover {
    background: var(--violet-light);
}

.dot.active {
    background: var(--violet-dark);
    border-color: var(--violet-dark);
}

.gallery-count {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: var(--space-xs);
}

/* Responsive Carousel */
@media (max-width: 768px) {
    .carousel-slide img {
        height: 250px;
    }

    .carousel-btn {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .carousel-slide img {
        height: 200px;
    }

    .carousel-btn {
        width: 28px;
        height: 28px;
    }

    .dot {
        width: 10px;
        height: 10px;
    }
}