/**
 * Portfolio Section
 * Grid layout with filter and lightbox
 */

.portfolio {
    background: var(--color-bg-secondary);
}

/* Portfolio Filters */
.portfolio__filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    margin-bottom: var(--spacing-3xl);
}

.filter-btn {
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-size: var(--fs-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
    cursor: pointer;
}

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

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

/* Portfolio Grid */
.portfolio__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

/* Portfolio Card */
.portfolio-card {
    position: relative;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
    display: none;
    height: 100%;
}

.portfolio-card.visible {
    display: flex;
    flex-direction: column;
    animation: fadeInScale 0.5s ease-out;
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.portfolio-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-8px);
    box-shadow: var(--shadow-primary-lg);
}

/* Card Image */
.portfolio-card__image {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    background: var(--color-bg-tertiary);
}

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

.portfolio-card:hover .portfolio-card__image img {
    transform: scale(1.1);
}

.portfolio-card__badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(3, 143, 217, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    color: white;
    font-size: var(--fs-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Card Content */
.portfolio-card__content {
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    flex: 1;
}

.portfolio-card__artist {
    font-size: var(--fs-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.portfolio-card__title {
    font-size: var(--fs-lg);
    color: var(--color-text-secondary);
    line-height: var(--leading-snug);
}

.portfolio-card__description {
    color: var(--color-text-muted);
    font-size: var(--fs-sm);
    line-height: var(--leading-relaxed);
}

.portfolio-card__links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: auto;
    padding-top: var(--spacing-md);
}

.portfolio-card__links .social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-size: var(--fs-lg);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.portfolio-card__links .social-link:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.portfolio-card__meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

.portfolio-card__year {
    font-size: var(--fs-sm);
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.portfolio-card__type {
    font-size: var(--fs-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Loading State */
.portfolio-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-4xl);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (min-width: 768px) {
    .portfolio__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .portfolio__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.lightbox.active {
    display: flex;
    animation: fadeIn var(--transition-base);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.lightbox__content {
    position: relative;
    max-width: 1200px;
    max-height: 90vh;
    width: 100%;
}

.lightbox__image {
    width: 100%;
    height: auto;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.lightbox__close {
    position: absolute;
    top: -50px;
    right: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: white;
    font-size: 24px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lightbox__close:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    transform: rotate(90deg);
}

.lightbox__nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    color: white;
    font-size: 24px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lightbox__nav:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.lightbox__nav--prev {
    left: var(--spacing-lg);
}

.lightbox__nav--next {
    right: var(--spacing-lg);
}