/* Portfolio Styles */
.portfolio-container {
    width: 100%;
}

.portfolio-filters {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 8px 16px;
    border: 2px solid #e2e8f0;
    background: var(--e-global-color-7c4d0cd);
    color: var(--e-global-color-text);
    border-radius: 9999px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: Inter, sans-serif;
    font-size: 18px;
    font-weight: 600;
}

.filter-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.filter-name {
    flex: 1;
}

.filter-count {
    background-color: var(--e-global-color-c32f9d4);
    font-size: 16px;
    color: var(--e-global-color-text);
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 9999px;
}

.filter-btn:hover,
.filter-btn.active {
    border-color: var(--e-global-color-primary);
}

.portfolio-grid {
    display: grid;
    gap: 20px;
    margin-bottom: 30px;
}

/* Default 4 columns */
.portfolio-grid[data-columns="1"] { grid-template-columns: 1fr; }
.portfolio-grid[data-columns="2"] { grid-template-columns: repeat(2, 1fr); }
.portfolio-grid[data-columns="3"] { grid-template-columns: repeat(3, 1fr); }
.portfolio-grid[data-columns="4"] { grid-template-columns: repeat(4, 1fr); }
.portfolio-grid[data-columns="5"] { grid-template-columns: repeat(5, 1fr); }
.portfolio-grid[data-columns="6"] { grid-template-columns: repeat(6, 1fr); }

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    transition: opacity 0.3s ease, transform 0.3s ease; /* solo opacity e transform */
}

.portfolio-link {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
}

.portfolio-image-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
    display: block;
}

.portfolio-title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: transparent;
    font-size: 40px;
    text-transform: uppercase;
    font-family: 'Teko';
    text-align: center;
    color: var(--e-global-color-text);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 3;
    line-height: 2rem;
    text-shadow: 0 0 3px rgba(0, 0, 0, 0.2);
    font-weight: 700;
    width: calc(100% - 40px);
}

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

.category-dots {
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    gap: 4px;
    z-index: 3;
}

.category-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.img-bw {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    filter: grayscale(100%);
    position: relative;
    z-index: 1;
}

.img-color {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    background-size: cover;
    background-repeat: no-repeat;
    background-color: var(--e-global-color-primary);
    background-blend-mode: multiply;
    object-fit: cover;
    mask-image: url("../../assets/images/sprites/animation_mask_portfolio.png");
    -webkit-mask-image: url("../../assets/images/sprites/animation_mask_portfolio.png");
    mask-repeat: no-repeat;
    -webkit-mask-repeat: no-repeat;
    mask-position: 0 0;
    -webkit-mask-position: 0 0;
    mask-size: cover;
    -webkit-mask-size: cover;
    transition: none !important; /* disattiva transizioni per evitare interpolazioni */
}

.portfolio-loader {
    display: flex;
    justify-content: center;
    padding: 20px;
}

.loader-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--e-global-color-primary);
    border-top: 3px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Animation classes for filtering */
.portfolio-item.fade-out {
    opacity: 0;
    transform: scale(0.8);
}

.portfolio-item.fade-in {
    opacity: 1;
    transform: scale(1);
}

/* Portfolio Categories Widget */
.portfolio-categories-widget {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.portfolio-category-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 8px 16px;
    border: 2px solid #e2e8f0;
    background: var(--e-global-color-7c4d0cd);
    color: var(--e-global-color-text);
    border-radius: 9999px;
    text-decoration: none;
    font-family: Inter, sans-serif;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.portfolio-category-item:hover {
    border-color: var(--e-global-color-primary);
    text-decoration: none;
}

.portfolio-category-item,
.portfolio-category-item:hover {
    color: var(--e-global-color-text) !important;
}

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

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr !important;
        gap: 15px;
    }
    
    .portfolio-filters {
        gap: 8px;
    }
    
    .filter-btn {
        padding: 6px 12px;
        font-size: 14px;
    }
}