/* ===================================
   PORTFOLIO PAGE STYLES
   =================================== */

/* Portfolio Header */
.portfolio-header {
    padding: 8rem 0 4rem 0;
    background: var(--bg-primary);
    text-align: center;
}

.portfolio-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.portfolio-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Filter Section */
.portfolio-filter-section {
    padding: 2rem 0 0.25rem;
    background: var(--bg-secondary);
}

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

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid rgba(167, 139, 250, 0.2);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
}

.filter-btn:hover {
    border-color: var(--primary-color);
    background: rgba(167, 139, 250, 0.1);
}

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

/* Portfolio Gallery */
.portfolio-gallery {
    padding: 4rem 0;
    background: var(--bg-primary);
    min-height: 60vh;
}

.portfolio-gallery .container {
    max-width: 100%;
    width: 98%;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.portfolio-item {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-base);
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

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

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

.portfolio-item a {
    display: block;
    width: 100%;
    height: 100%;
}

.portfolio-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 1.5rem;
    transform: translateY(100%);
    transition: transform var(--transition-base);
    pointer-events: none;
}

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

.portfolio-item-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    color: var(--bg-primary);
    border-radius: 4px;
    font-size: 0.75rem;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}

.portfolio-item-title {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin: 0;
}

/* Loading State */
.loading-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 0;
}

.loader {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(167, 139, 250, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 1024px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .portfolio-header {
        padding: 6rem 0 3rem 0;
    }

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

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

    .filter-btn {
        width: 100%;
    }
}