/* Portfolio Styles */
.filter-section {
    padding: 16px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.filter-btn {
    height: 36px;
    padding: 0 16px;
    background: var(--secondary-bg);
    border: 1px solid var(--border-color);
    border-radius: 18px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.filter-btn:hover {
    border-color: var(--hover-border);
    background: var(--tertiary-bg);
}

.filter-btn.active {
    background: var(--accent-red);
    border-color: var(--accent-red);
    color: var(--text-primary);
}

.portfolio-grid {
    padding: 16px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.portfolio-item {
    position: relative;
    cursor: pointer;
    transition: transform 0.3s ease;
    background: var(--secondary-bg);
    border-radius: 12px;
    overflow: hidden;
}

/* Single video expansion - when only one video is visible */
.portfolio-item.single-video {
    grid-column: span 2;
    max-width: 600px;
    justify-self: center;
}

.portfolio-item.single-video .portfolio-image {
    height: 240px;
}

.portfolio-item:hover {
    transform: translateY(-5px);
}

.portfolio-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.portfolio-info {
    padding: 16px;
}

.portfolio-title-item {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    line-height: 1.4;
}

.portfolio-client {
    font-size: 14px;
    color: var(--text-secondary);
}

.play-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.play-button {
    width: 60px;
    height: 60px;
    background: var(--accent-red);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-primary);
    font-size: 20px;
    transition: transform 0.3s ease;
}

.play-button:hover {
    transform: scale(1.1);
}

.play-button::before {
    content: '▶';
    margin-left: 3px;
}

/* Video Modal */
.video-modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
}

.video-modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.video-container {
    position: relative;
    width: 90%;
    max-width: 800px;
    aspect-ratio: 16/9;
}

.video-container iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 12px;
}

.close-btn {
    position: absolute;
    top: -40px;
    right: 0;
    color: var(--text-primary);
    font-size: 30px;
    font-weight: bold;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    line-height: 1;
    transition: opacity 0.3s ease;
}

.close-btn:hover {
    opacity: 0.7;
}

/* Responsive Design for Portfolio */
@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .portfolio-item.single-video {
        grid-column: span 1;
        max-width: none;
    }

    .portfolio-item.single-video .portfolio-image {
        height: 200px;
    }

    .filter-section {
        justify-content: center;
    }

    .video-container {
        width: 95%;
        margin: 0 20px;
    }

    .close-btn {
        top: -50px;
        font-size: 24px;
    }
}