/* Portfolio Header */
.portfolio-header {
    background: #000000;
    color: white;
    text-align: center;
    padding: 120px 0 60px;
}

.portfolio-header h1 {
    font-size: 3.5rem;
    font-weight: 300;
    font-family: 'Dancing Script', cursive;
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
}

.portfolio-header p {
    font-size: 1.1rem;
    font-family: 'Poppins', sans-serif;
    font-weight: 300;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto;
    letter-spacing: 0.5px;
}

/* Portfolio Filters */
.portfolio-filters {
    padding: 40px 0;
    background: #f8f9fa;
}

.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 15px 30px;
    border: 1px solid #000000;
    background: transparent;
    color: #000000;
    border-radius: 0;
    cursor: pointer;
    font-weight: 400;
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: #000000;
    color: white;
    transform: translateY(-2px);
}

/* Portfolio Gallery */
.portfolio-gallery {
    padding: 60px 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: white;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.portfolio-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 2rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

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

.portfolio-overlay h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.portfolio-overlay p {
    margin-bottom: 1rem;
    opacity: 0.9;
}

.portfolio-link {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: #e74c3c;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: background 0.3s ease;
}

.portfolio-link:hover {
    background: #c0392b;
    transform: scale(1.1);
}

/* Portfolio Stats */
.portfolio-stats {
    padding: 60px 0;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 2rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: #e74c3c;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .portfolio-header h1 {
        font-size: 2.5rem;
    }

    .filter-buttons {
        flex-direction: column;
        align-items: center;
    }

    .filter-btn {
        width: 200px;
    }

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

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

    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .portfolio-header h1 {
        font-size: 2rem;
    }

    .portfolio-header p {
        font-size: 1rem;
    }

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

    .stat-number {
        font-size: 2rem;
    }
}

/* Animation for portfolio items */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.portfolio-item {
    animation: fadeIn 0.6s ease-out;
}

/* Loading state for images */
.portfolio-item img {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-item img.loaded {
    opacity: 1;
}

/* Filter animation */
.portfolio-item.filtered-out {
    animation: fadeOut 0.3s ease-out forwards;
}

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.8);
    }
}

.portfolio-item.filtered-in {
    animation: fadeIn 0.5s ease-out forwards;
}