.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 30px;
    background: var(--dark-gray);
    border: 1px solid transparent;
    color: var(--light-gray);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-weight: 500;
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.portfolio-item {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 16/10;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.95) 0%, rgba(10, 10, 10, 0.7) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-smooth);
    padding: 30px;
    text-align: center;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

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

.portfolio-overlay h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    transform: translateY(20px);
    transition: var(--transition-smooth);
}

.portfolio-item:hover .portfolio-overlay h3 {
    transform: translateY(0);
}

.portfolio-overlay p {
    color: var(--light-gray);
    transform: translateY(20px);
    transition: var(--transition-smooth);
    transition-delay: 0.1s;
}

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

.portfolio-overlay .btn {
    margin-top: 20px;
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition-smooth);
    transition-delay: 0.2s;
}

.portfolio-item:hover .portfolio-overlay .btn {
    transform: translateY(0);
    opacity: 1;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    position: relative;
    max-width: 1200px;
    width: 100%;
    max-height: 90vh;
    background: var(--dark-gray);
    border-radius: 16px;
    overflow: hidden;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: var(--primary-red);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition-fast);
}

.modal-close:hover {
    transform: rotate(90deg);
}

.modal-video,
.modal-image {
    width: 100%;
    height: auto;
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-overlay h3 {
        font-size: 1.5rem;
    }
}