/* ============================================
   VisualHub - Portfolio Page Styles
   ============================================ */

/* Portfolio Hero */
.portfolio-hero {
    min-height: 50vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-bg-secondary), var(--color-bg-tertiary));
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.portfolio-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, rgba(55, 182, 255, 0.1) 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.3;
}

.portfolio-hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.portfolio-hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.portfolio-hero-content p {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
}

/* Filter Section */
.portfolio-filter-section {
    padding: var(--spacing-lg) 0;
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 70px;
    z-index: 100;
}

/* Portfolio Grid */
.portfolio-grid-section {
    min-height: 60vh;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: var(--spacing-md);
}

.portfolio-loading,
.portfolio-empty,
.portfolio-error {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
}

.portfolio-empty h3,
.portfolio-error h3 {
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
}

.portfolio-empty p,
.portfolio-error p {
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

/* Portfolio Detail Modal */
.portfolio-modal-content {
    max-width: 900px;
    padding: 3rem;
}

.portfolio-detail-image {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin-bottom: 2rem;
}

.portfolio-detail h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.portfolio-detail-category {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(55, 182, 255, 0.1);
    border: 1px solid var(--color-accent-primary);
    border-radius: 999px;
    font-size: 0.875rem;
    color: var(--color-accent-primary);
    margin-bottom: 1.5rem;
}

.portfolio-detail-summary {
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

/* Content Gallery */
.content-gallery {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

.content-gallery h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.gallery-grid a {
    display: block;
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: transform 0.3s ease;
}

.gallery-grid a:hover {
    transform: scale(1.05);
}

.gallery-grid img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

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

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

    .portfolio-filter-section {
        position: relative;
        top: 0;
    }

    .portfolio-modal-content {
        padding: 2rem 1.5rem;
    }
}

/* Video Player Styles */
.video-player-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    margin-bottom: 2rem;
    background: #000;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.video-player-container iframe,
.video-player-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: var(--radius-lg);
}

.video-player-container video {
    object-fit: contain;
}