/* Portfolio Page Styles */

/* Portfolio Hero Section */
.portfolio-hero {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/portfolio-hero.jpg');
    background-size: cover;
    background-position: center;
    height: 400px;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white);
    position: relative;
    margin-top: 80px;
    will-change: transform;
    transform: translateZ(0);
    -webkit-font-smoothing: antialiased;
}

.portfolio-hero .container {
    position: relative;
    z-index: 2;
    transform: translateZ(0);
}

.portfolio-hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    animation: quickFadeIn 0.5s ease forwards;
    color: var(--white);
    will-change: transform, opacity;
}

.portfolio-hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
    animation: quickFadeIn 0.5s ease forwards;
    animation-delay: 0.1s;
    will-change: transform, opacity;
}

/* Portfolio Filter */
.portfolio-filter {
    padding: 40px 0;
    text-align: center;
    background: var(--white);
    transform: translateZ(0);
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.filter-button {
    padding: 10px 25px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    -webkit-tap-highlight-color: transparent;
}

.filter-button:hover,
.filter-button.active {
    background: var(--primary-color);
    color: var(--white);
}

/* Portfolio Grid */
.portfolio-grid {
    padding: 0 20px;
    margin-bottom: 60px;
    transform: translateZ(0);
}

.portfolio-grid .container {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 30px;
    padding: 20px 0;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

.portfolio-grid .container::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.portfolio-item {
    flex: 0 0 350px; /* Fixed width for each item */
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    will-change: transform, opacity;
    opacity: 1;
    transform: scale(1);
    scroll-snap-align: start;
}

.portfolio-item[style*="display: none"] {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.portfolio-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transform: translateZ(0);
    backface-visibility: hidden;
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    padding: 20px;
    color: var(--white);
    transform: translateY(100%);
    transition: transform 0.3s ease;
    will-change: transform;
    background-color: #ffffffab;
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    
}

.portfolio-overlay h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.portfolio-overlay p {
    font-size: 1rem;
    margin-bottom: 15px;
}

.portfolio-link {
    color: var(--white);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

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

/* Project Details */
.project-details {
    padding: 80px 0;
    background: var(--light-gray);
}

.project-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.project-images {
    display: grid;
    gap: 20px;
}

.project-image {
    width: 100%;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.project-info h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 2.5rem;
}

.project-info p {
    margin-bottom: 20px;
    line-height: 1.8;
}

.project-specs {
    background: var(--white);
    padding: 30px;
    border-radius: 10px;
    margin-top: 30px;
}

.spec-item {
    display: flex;
    justify-content: space-between;
    padding: 15px 0;
    border-bottom: 1px solid var(--light-gray);
}

.spec-item:last-child {
    border-bottom: none;
}

/* Related Projects */
.related-projects {
    padding: 80px 0;
    background: var(--white);
}

.related-projects h2 {
    text-align: center;
    margin-bottom: 40px;
    color: var(--primary-color);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    padding: 0 20px;
}

/* Optimized animations */
@keyframes quickFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* RTL Specific Optimizations */
[dir="rtl"] .portfolio-hero,
[dir="rtl"] .portfolio-grid,
[dir="rtl"] .portfolio-item {
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
}

[dir="rtl"] .portfolio-overlay {
    text-align: right;
    transform: translateZ(0);
}

[dir="rtl"] .portfolio-link {
    flex-direction: row-reverse;
}

[dir="rtl"] .filter-buttons {
    flex-direction: row-reverse;
}

/* Responsive Design with Performance Optimizations */
@media (max-width: 992px) {
    .portfolio-hero h1 {
        font-size: 3rem;
    }

    .portfolio-grid {
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .portfolio-hero {
        height: 300px;
    }

    .portfolio-hero h1 {
        font-size: 2.5rem;
    }

    .portfolio-item {
        flex: 0 0 280px; /* Smaller width for mobile */
    }

    .portfolio-grid .container {
        gap: 15px;
        padding: 15px 0;
    }

    .filter-buttons {
        gap: 10px;
    }

    .filter-button {
        padding: 8px 20px;
        font-size: 0.9rem;
    }
}

/* Optimized Language-specific Font Sizes */
[lang="fa"] .portfolio-hero h1 {
    font-size: 3.2rem;
    font-display: swap;
}

[lang="fa"] .portfolio-hero p {
    font-size: 1.1rem;
    font-display: swap;
}

[lang="fa"] .portfolio-overlay h3 {
    font-size: 1.4rem;
    font-display: swap;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .portfolio-hero h1,
    .portfolio-hero p {
        animation: none;
    }

    .portfolio-item,
    .portfolio-overlay {
        transition: none;
    }
}

/* Add scroll indicators */
.portfolio-grid::before,
.portfolio-grid::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 50px;
    z-index: 1;
    pointer-events: none;
}

.portfolio-grid::before {
    left: 0;
    background: linear-gradient(to right, var(--white) 0%, transparent 100%);
}

.portfolio-grid::after {
    right: 0;
    background: linear-gradient(to left, var(--white) 0%, transparent 100%);
}

[dir="rtl"] .portfolio-grid::before {
    background: linear-gradient(to left, var(--white) 0%, transparent 100%);
}

[dir="rtl"] .portfolio-grid::after {
    background: linear-gradient(to right, var(--white) 0%, transparent 100%);
}