/* ========================================
   Portfolio Page Styles
   ======================================== */

/* ========================================
   Portfolio Header
   ======================================== */

.portfolio-header {
    text-align: center;
    padding: 4rem 0 2rem;
}

.portfolio-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.5rem;
}

.portfolio-description {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: var(--modal-max-width);
    margin: 0 auto;
}

/* ========================================
   Filter Tags
   ======================================== */

.portfolio-filters {
    padding: 1rem 0 2rem;
}

.filter-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-tag {
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-full);
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

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

.filter-tag.active {
    background: var(--text-primary);
    color: var(--bg-primary);
    border-color: var(--text-primary);
}

/* ========================================
   Portfolio Grid
   ======================================== */

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    padding: 2rem 0 4rem;
}

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

.project-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.project-card:hover {
    border-color: var(--border-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.project-image {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-tertiary);
}

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

.project-card:hover .project-image img {
    transform: scale(1.02);
}

.project-content {
    padding: 1.5rem;
}

.project-title {
    font-size: var(--font-size-xl-2xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: 0.5rem;
}

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

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

.project-description {
    font-size: var(--font-size-md-lg);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-bottom: 1rem;
}

.project-tag {
    padding: 0.25rem 0.625rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
}

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

.project-link {
    padding: 0.375rem 0.75rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-base);
}

.project-link:hover {
    border-color: var(--link-color);
    color: var(--link-color);
}

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

.breadcrumb {
    padding: 2rem 0 1rem;
    font-size: var(--font-size-md);
    color: var(--text-secondary);
}

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

.breadcrumb a:hover {
    color: var(--link-color);
}

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

.project-detail {
    padding-bottom: 4rem;
}

.project-detail-header {
    padding: 2rem 0;
}

.project-detail-header h1 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: var(--font-weight-bold);
    margin-bottom: 0.75rem;
}

.project-detail-description {
    font-size: var(--font-size-xl-2xl);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.project-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.project-detail-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.project-detail-link {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--text-primary);
    color: var(--bg-primary);
    border-radius: var(--radius-md);
    font-size: var(--font-size-md-lg);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: opacity var(--transition-base);
}

.project-detail-link:hover {
    opacity: 0.9;
}

.project-detail-image {
    margin-bottom: 2rem;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.project-detail-content {
    max-width: var(--content-max-width);
}

.project-detail-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-primary);
}

.back-to-portfolio {
    display: inline-flex;
    align-items: center;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-md-lg);
}

.back-to-portfolio:hover {
    color: var(--link-color);
}

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

@media (max-width: 768px) {
    .portfolio-header {
        padding: 2rem 0 1rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .project-content {
        padding: 1rem;
    }

    .project-detail-header {
        padding: 1rem 0;
    }
}