/* Case Study Page Styles */
.hub-hero {
    padding: 120px 0 80px;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1541888946425-d81bb19240f5?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    color: white;
    text-align: center;
}

.category-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    border: 1px solid var(--color-gray-200);
    background: white;
    color: var(--color-text);
    cursor: pointer;
    transition: 0.3s;
    font-size: 0.9rem;
}

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

/* Reusing Portfolio Card Styles with tweaks */
.portfolio-card {
    border-radius: 12px;
    overflow: hidden;
    background: white;
    box-shadow: var(--shadow-sm);
    transition: 0.3s;
    display: block;
    text-decoration: none;
    color: inherit;
}

.portfolio-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.portfolio-img {
    height: 240px;
    overflow: hidden;
    position: relative;
}

.portfolio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}

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

.portfolio-content {
    padding: 1.5rem;
}

.portfolio-tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--color-accent);
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    display: block;
}

/* Product Detail Page Styles */
.loading-state {
    text-align: center;
    padding: 150px 20px;
    color: var(--color-gray-400);
    margin-top: 76px;
}

.loading-state .spinner {
    margin: 0 auto 1rem;
}

.error-state {
    text-align: center;
    padding: 150px 20px;
    color: var(--color-accent);
    margin-top: 76px;
}