/* Portfolio Grid Section - MixItUp Compatible */
.portfolio-grid {
    margin-top: 3rem;
}

.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

.portfolio-grid .mix {
    float: left;
    overflow: hidden;
    width: 48%;
    margin: 1%;
    box-sizing: border-box;
    /* Prevent layout shifts - use GPU acceleration */
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    /* No transitions - MixItUp handles all transforms */
    will-change: transform, opacity;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    cursor: pointer;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    /* No transitions on transform/opacity - MixItUp handles these */
    transition: box-shadow 0.3s ease;
    aspect-ratio: 1;
}

.portfolio-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

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

.portfolio-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85), transparent);
    padding: 1.5rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
    pointer-events: none;
}

.portfolio-item:hover .portfolio-caption {
    transform: translateY(0);
    pointer-events: auto;
}

.portfolio-caption-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 0.25rem;
    letter-spacing: -0.01em;
}

.portfolio-caption-category {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 400;
}

/* Filter Buttons */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.portfolio-filter-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.portfolio-filter-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(68, 124, 245, 0.05);
}

.portfolio-filter-btn.active {
    background: #447CF5;
    border-color: #447CF5;
    color: white;
}

.portfolio-filter-btn.active:hover {
    background: #2E5FDB;
    border-color: #2E5FDB;
}

/* MixItUp handles animations, these are fallbacks */

/* Fade in animation for visible items */
.portfolio-item.fade-in {
    animation: fadeInScale 0.5s ease forwards;
}

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

/* MixItUp Animation States - No transitions on .mix elements */
/* MixItUp applies inline styles and handles all transforms/opacity */
.portfolio-grid .mix {
    opacity: 1;
    display: block;
    /* No transitions - MixItUp handles all positioning and transforms */
    /* This prevents the jump at the end of animation */
}

/* Ensure MixItUp transforms don't conflict with CSS */
.portfolio-grid .mix[style*="transform"] {
    /* MixItUp is controlling this element - no CSS interference */
}

.portfolio-grid .mix.hidden {
    opacity: 0;
    display: none;
}

/* Responsive Design */
@media (min-width: 768px) {
    .portfolio-grid .mix {
        width: 31%;
        margin: 1%;
    }
}

@media (max-width: 767px) {
    .portfolio-grid .mix {
        width: 48%;
        margin: 1%;
    }
    
    .portfolio-filters {
        gap: 0.5rem;
    }
    
    .portfolio-filter-btn {
        padding: 0.4rem 1rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .portfolio-grid .mix {
        width: 100%;
        margin: 1% 0;
    }
}

/* Portfolio Modal Styles */
.portfolio-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    align-items: center;
    -webkit-box-pack: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    -webkit-transition: opacity 0.3s ease, visibility 0.3s ease;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    padding: 1rem;
}

.portfolio-modal.active {
    opacity: 1;
    visibility: visible;
}

.portfolio-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    cursor: pointer;
}

.portfolio-modal-content {
    position: relative;
    background: var(--bg-primary);
    border-radius: 18px;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    -webkit-transform: scale(0.95);
    transform: scale(0.95);
    -webkit-transition: -webkit-transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.portfolio-modal.active .portfolio-modal-content {
    -webkit-transform: scale(1);
    transform: scale(1);
}

.portfolio-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    align-items: center;
    -webkit-box-pack: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    -webkit-transition: all 0.2s ease;
    transition: all 0.2s ease;
    font-size: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.portfolio-modal-close:hover,
.portfolio-modal-close:focus {
    background: var(--bg-primary);
    -webkit-transform: scale(1.1);
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.portfolio-modal-image-container {
    width: 100%;
    -webkit-box-flex: 1;
    flex: 1;
    min-height: 0;
    overflow: hidden;
    background: var(--bg-secondary);
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    align-items: center;
    -webkit-box-pack: center;
    justify-content: center;
    position: relative;
    touch-action: pan-y;
    cursor: grab;
}

.portfolio-modal-image-container:active {
    cursor: grabbing;
}

/* Carousel wrapper and track */
.portfolio-modal-carousel-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.portfolio-modal-carousel-track {
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    width: 200%;
    height: 100%;
    -webkit-transition: -webkit-transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    -webkit-transform: translateX(0);
    transform: translateX(0);
    will-change: transform;
}

.portfolio-modal-carousel-track.dragging {
    -webkit-transition: none;
    transition: none;
}

.portfolio-modal-carousel-slide {
    width: 50%;
    height: 100%;
    -webkit-box-flex: 0;
    flex: 0 0 50%;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    align-items: center;
    -webkit-box-pack: center;
    justify-content: center;
    overflow: hidden;
}

.portfolio-modal-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    max-height: 60vh;
    -webkit-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    user-drag: none;
    pointer-events: none;
}

.portfolio-modal-image-next {
    opacity: 0;
    visibility: hidden;
}

/* Respect reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
    .portfolio-modal-carousel-track {
        -webkit-transition: none;
        transition: none;
    }
}

/* Navigation Buttons */
.portfolio-modal-nav {
    position: absolute;
    top: 50%;
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--text-primary);
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-align: center;
    align-items: center;
    -webkit-box-pack: center;
    justify-content: center;
    cursor: pointer;
    z-index: 5;
    -webkit-transition: all 0.2s ease;
    transition: all 0.2s ease;
    font-size: 1.5rem;
    box-shadow: var(--shadow-sm);
    padding: 0;
    margin: 0;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.portfolio-modal-nav:hover:not(.disabled) {
    background: rgba(255, 255, 255, 0.5);
    -webkit-transform: translateY(-50%) scale(1.1);
    transform: translateY(-50%) scale(1.1);
    box-shadow: var(--shadow-md);
    border-color: rgba(255, 255, 255, 0.5);
    color: var(--accent-primary);
}

.portfolio-modal-nav:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
    background: rgba(255, 255, 255, 0.5);
    border-color: rgba(255, 255, 255, 0.3);
}

.portfolio-modal-nav.disabled,
.portfolio-modal-nav[disabled] {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

.portfolio-modal-nav.disabled:hover,
.portfolio-modal-nav[disabled]:hover {
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-sm);
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--text-primary);
}

.portfolio-modal-prev {
    left: 1rem;
}

.portfolio-modal-next {
    right: 1rem;
}

.portfolio-modal-details {
    padding: 2rem;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.portfolio-modal-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.portfolio-modal-category {
    font-size: 1rem;
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.portfolio-modal-description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    letter-spacing: -0.01em;
    margin: 0;
}

/* Responsive Modal Styles */
@media (max-width: 768px) {
    .portfolio-modal-content {
        max-width: 100%;
        max-height: 95vh;
        border-radius: 12px;
    }
    
    .portfolio-modal-image {
        max-height: 50vh;
    }
    
    .portfolio-modal-details {
        padding: 1.5rem;
    }
    
    .portfolio-modal-title {
        font-size: 1.5rem;
    }
    
    .portfolio-modal-close {
        top: 0.75rem;
        right: 0.75rem;
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }
    
    .portfolio-modal-nav {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
    
    .portfolio-modal-prev {
        left: 0.5rem;
    }
    
    .portfolio-modal-next {
        right: 0.5rem;
    }
}

@media (max-width: 480px) {
    .portfolio-modal {
        padding: 0.5rem;
    }
    
    .portfolio-modal-content {
        max-height: 98vh;
        border-radius: 12px;
    }
    
    .portfolio-modal-image {
        max-height: 45vh;
    }
    
    .portfolio-modal-details {
        padding: 1.25rem;
    }
    
    .portfolio-modal-title {
        font-size: 1.25rem;
    }
    
    .portfolio-modal-category {
        font-size: 0.9rem;
    }
    
    .portfolio-modal-description {
        font-size: 0.95rem;
    }
    
    .portfolio-modal-nav {
        width: 36px;
        height: 36px;
        font-size: 1.1rem;
    }
    
    .portfolio-modal-prev {
        left: 0.25rem;
    }
    
    .portfolio-modal-next {
        right: 0.25rem;
    }
}

/* Prevent body scroll when modal is open */
body.modal-open {
    overflow: hidden;
}