/* ========================================
   慕品视觉 - 案例页面专用样式
   ======================================== */

/* Portfolio Filter Section */
.portfolio-filter-section {
    padding: 3rem 0;
    background: var(--color-white);
}

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

.filter-btn {
    padding: 0.8rem 2rem;
    border-radius: 30px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 500;
    color: var(--color-brown-medium);
    border: 2px solid var(--color-pink-light);
    background: transparent;
}

.filter-btn.active,
.filter-btn:hover {
    background: linear-gradient(135deg, var(--color-pink-medium), var(--color-pink-deep));
    color: var(--color-white);
    border-color: transparent;
}

/* Portfolio Grid Section */
.portfolio-grid-section {
    padding: 6rem 0;
    background: var(--color-cream);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.portfolio-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    cursor: pointer;
}

.portfolio-item img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(to top, rgba(62, 39, 35, 0.9), transparent);
    transform: translateY(100%);
    transition: transform var(--transition-medium);
}

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

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

.portfolio-overlay h3 {
    color: var(--color-white);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.portfolio-overlay p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

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

@media (max-width: 768px) {
    .portfolio-filter {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}