/* ============================================
   PORTFOLIO INDEX PAGE STYLES
   portfolio-index-styles.css
   Companion to portfolio-styles.css
   ============================================ */


/* ============================================
   PAGE HERO
   ============================================ */
.portfolio-index-hero {
    padding: calc(var(--nav-height) + var(--space-3xl)) 0 var(--space-2xl);
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
}

.portfolio-index-hero .section-tag {
    display: block;
    margin-bottom: var(--space-md);
}

.portfolio-index-title {
    font-family: var(--font-display);
    font-size: var(--fs-5xl);
    font-weight: var(--fw-bold);
    line-height: var(--lh-tight);
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.portfolio-index-subtitle {
    font-size: var(--fs-lg);
    color: var(--text-secondary);
    line-height: var(--lh-relaxed);
    max-width: 680px;
    margin: 0;
}


/* ============================================
   FEATURED PROJECT
   ============================================ */
.portfolio-featured-section {
    padding: var(--space-3xl) 0;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
}

.portfolio-featured-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.portfolio-featured-image-link {
    display: block;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    text-decoration: none;
}

.portfolio-featured-image {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
}

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

.portfolio-featured-image-link:hover .portfolio-featured-image img,
.portfolio-featured-image-link:focus .portfolio-featured-image img {
    transform: scale(1.03);
}

.portfolio-featured-badge {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-black, #0d0d0d);
    background-color: var(--accent-primary);
    border-radius: var(--border-radius-full);
}

/* Content side */
.portfolio-featured-content .project-category {
    margin-bottom: var(--space-sm);
}

.portfolio-featured-title {
    font-family: var(--font-display);
    font-size: var(--fs-3xl);
    font-weight: var(--fw-bold);
    line-height: var(--lh-tight);
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.portfolio-featured-title a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.portfolio-featured-title a:hover,
.portfolio-featured-title a:focus {
    color: var(--accent-primary);
}

.portfolio-featured-excerpt {
    font-size: var(--fs-base);
    color: var(--text-secondary);
    line-height: var(--lh-relaxed);
    margin-bottom: var(--space-lg);
}

.portfolio-featured-meta {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.portfolio-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--fs-sm);
    color: var(--text-tertiary);
}

.portfolio-meta-item i {
    color: var(--accent-primary);
    font-size: 0.8rem;
}


/* ============================================
   ALL PROJECTS GRID SECTION
   ============================================ */
.portfolio-grid-section {
    padding: var(--space-3xl) 0 var(--space-4xl);
    background-color: var(--bg-primary);
}

.portfolio-grid-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.portfolio-grid-heading {
    font-family: var(--font-display);
    font-size: var(--fs-2xl);
    font-weight: var(--fw-bold);
    color: var(--text-primary);
    margin: 0;
}


/* ============================================
   FILTER BUTTONS
   ============================================ */
.portfolio-filter {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.portfolio-filter-btn {
    padding: var(--space-xs) var(--space-lg);
    font-size: var(--fs-sm);
    font-weight: var(--fw-medium);
    color: var(--text-secondary);
    background-color: transparent;
    border: 1px solid var(--border-light);
    border-radius: var(--border-radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.portfolio-filter-btn:hover,
.portfolio-filter-btn:focus {
    color: var(--accent-primary);
    border-color: var(--accent-primary);
    background-color: rgba(252, 163, 17, 0.05);
    outline: none;
}

.portfolio-filter-btn.active {
    color: var(--color-black, #0d0d0d);
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.portfolio-filter-btn.active:hover,
.portfolio-filter-btn.active:focus {
    background-color: var(--accent-secondary);
    border-color: var(--accent-secondary);
}


/* ============================================
   PROJECT GRID
   ============================================ */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}


/* ============================================
   PROJECT CARDS
   ============================================ */
.portfolio-card {
    display: flex;
    flex-direction: column;
    background-color: var(--bg-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.portfolio-card:hover,
.portfolio-card:focus-within {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Card image */
.portfolio-card-image-link {
    display: block;
    text-decoration: none;
}

.portfolio-card-image {
    position: relative;
    aspect-ratio: 3 / 2;
    overflow: hidden;
}

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

.portfolio-card:hover .portfolio-card-image img,
.portfolio-card:focus-within .portfolio-card-image img {
    transform: scale(1.05);
}

.portfolio-card-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(13, 13, 13, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.portfolio-card:hover .portfolio-card-overlay,
.portfolio-card:focus-within .portfolio-card-overlay {
    opacity: 1;
}

.portfolio-card-overlay span {
    font-size: var(--fs-sm);
    font-weight: var(--fw-semibold);
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

/* Card content */
.portfolio-card-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: var(--space-lg);
}

.portfolio-card-content .project-category {
    font-size: var(--fs-xs);
    margin-bottom: var(--space-sm);
}

.portfolio-card-title {
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    font-weight: var(--fw-bold);
    line-height: var(--lh-tight);
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.portfolio-card-title a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.portfolio-card-title a:hover,
.portfolio-card-title a:focus {
    color: var(--accent-primary);
}

.portfolio-card-excerpt {
    font-size: var(--fs-sm);
    color: var(--text-secondary);
    line-height: var(--lh-relaxed);
    flex: 1;
    margin-bottom: var(--space-lg);
}

.portfolio-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--fs-xs);
    color: var(--text-tertiary);
    padding-top: var(--space-md);
    border-top: 1px solid var(--border-light);
}

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

.portfolio-card-meta i {
    color: var(--accent-primary);
}

.portfolio-card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    color: var(--accent-primary);
    text-decoration: none;
    transition: gap var(--transition-fast), color var(--transition-fast);
}

.portfolio-card-link:hover,
.portfolio-card-link:focus {
    gap: var(--space-sm);
    color: var(--accent-secondary);
}


/* ============================================
   EMPTY STATE
   ============================================ */
.portfolio-empty {
    text-align: center;
    padding: var(--space-3xl) 0;
    color: var(--text-tertiary);
}

.portfolio-empty i {
    font-size: var(--fs-4xl);
    margin-bottom: var(--space-md);
    display: block;
    opacity: 0.5;
}

.portfolio-empty p {
    font-size: var(--fs-base);
    margin: 0;
}


/* ============================================
   RESPONSIVE — TABLET (max-width: 1024px)
   ============================================ */
@media (max-width: 1024px) {
    .portfolio-index-title {
        font-size: var(--fs-4xl);
    }

    .portfolio-featured-card {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .portfolio-featured-title {
        font-size: var(--fs-2xl);
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .portfolio-grid-header {
        flex-direction: column;
        align-items: flex-start;
    }
}


/* ============================================
   RESPONSIVE — MOBILE (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
    .portfolio-index-hero {
        padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-xl);
    }

    .portfolio-index-title {
        font-size: var(--fs-3xl);
    }

    .portfolio-index-subtitle {
        font-size: var(--fs-base);
    }

    .portfolio-featured-section {
        padding: var(--space-2xl) 0;
    }

    .portfolio-featured-title {
        font-size: var(--fs-xl);
    }

    .portfolio-featured-meta {
        gap: var(--space-md);
    }

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

    .portfolio-grid-section {
        padding: var(--space-2xl) 0 var(--space-3xl);
    }

    .portfolio-filter {
        gap: var(--space-xs);
    }

    .portfolio-filter-btn {
        font-size: var(--fs-xs);
        padding: 6px var(--space-md);
    }
}


/* ============================================
   RESPONSIVE — SMALL MOBILE (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
    .portfolio-index-title {
        font-size: var(--fs-2xl);
    }

    .portfolio-featured-title {
        font-size: var(--fs-lg);
    }

    .portfolio-featured-excerpt {
        font-size: var(--fs-sm);
    }

    .portfolio-card-content {
        padding: var(--space-md);
    }

    .portfolio-card-title {
        font-size: var(--fs-base);
    }
}


/* ============================================
   DARK MODE ADJUSTMENTS
   ============================================ */
[data-theme="dark"] .portfolio-card {
    background-color: var(--bg-card);
}

[data-theme="dark"] .portfolio-filter-btn {
    border-color: var(--border-light);
    color: var(--text-secondary);
}

[data-theme="dark"] .portfolio-filter-btn:hover,
[data-theme="dark"] .portfolio-filter-btn:focus {
    background-color: rgba(252, 163, 17, 0.1);
}


/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .portfolio-card,
    .portfolio-card-image img,
    .portfolio-featured-image img,
    .portfolio-card-overlay,
    .portfolio-card-link {
        transition: none;
    }

    .portfolio-card:hover,
    .portfolio-card:focus-within {
        transform: none;
    }

    .portfolio-card:hover .portfolio-card-image img,
    .portfolio-card:focus-within .portfolio-card-image img,
    .portfolio-featured-image-link:hover .portfolio-featured-image img {
        transform: none;
    }

    .portfolio-card:hover .portfolio-card-overlay,
    .portfolio-card:focus-within .portfolio-card-overlay {
        opacity: 1;
    }
}


/* ============================================
   END OF PORTFOLIO-INDEX-STYLES.CSS
   ============================================ */