/* ===== Case Filter ===== */
.case-filter {
    padding: 40px 0;
    background: var(--white);
    border-bottom: 1px solid #eee;
}

.filter-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-btn {
    padding: 10px 25px;
    background: transparent;
    border: 1px solid #ddd;
    color: var(--text-color);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
    font-family: inherit;
}

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

/* ===== Cases Showcase ===== */
.cases-showcase {
    padding: 80px 0;
    background: var(--light-bg);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.case-item {
    position: relative;
    height: 350px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.case-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(transparent 30%, rgba(0,0,0,0.8));
    display: flex;
    align-items: flex-end;
    padding: 30px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-item:hover .case-overlay {
    opacity: 1;
}

.case-info {
    color: var(--white);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.case-item:hover .case-info {
    transform: translateY(0);
}

.case-tag {
    display: inline-block;
    padding: 5px 15px;
    background: var(--primary-color);
    font-size: 12px;
    margin-bottom: 10px;
}

.case-info h3 {
    font-size: 24px;
    margin-bottom: 5px;
}

.case-info p {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 15px;
}

.btn-view {
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid var(--white);
    color: var(--white);
    font-size: 12px;
    transition: all 0.3s ease;
}

.btn-view:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .filter-tabs {
        gap: 10px;
    }
    
    .filter-btn {
        padding: 8px 15px;
        font-size: 13px;
    }
}

@media (max-width: 576px) {
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-item {
        height: 250px;
    }
}