/* Case Studies Grid Layout */
.case-studies-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

/* Filters */
.cs-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 3rem;
}

.cs-filter-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cs-filter-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-muted);
}

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

/* Grid */
.cs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

/* Cards */
.cs-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
    text-decoration: none;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

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

.cs-card-image {
    position: relative;
    width: 100%;
    height: 200px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.cs-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cs-card-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 3rem;
    opacity: 0.5;
}

.cs-card-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--accent-primary);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cs-card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.cs-client {
    font-size: 0.85rem;
    color: var(--accent-primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cs-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.cs-result {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1.5rem;
    margin-top: auto;
    /* Pushes read more to bottom */
}

.cs-read-more {
    font-weight: 600;
    color: var(--accent-primary);
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.cs-card:hover .cs-read-more {
    color: var(--accent-hover);
}

.empty-case-studies {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--text-muted);
}

.empty-case-studies h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}


/* Detail View specific styles */

.cs-detail-hero {
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--border-color);
}

.cs-detail-badge {
    display: inline-block;
    background: rgba(26, 26, 26, 0.1);
    /* light accent */
    color: var(--accent-primary);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.cs-detail-client {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-top: 1rem;
}

.cs-detail-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.cs-detail-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.cs-detail-image-wrapper {
    margin-bottom: 3rem;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.cs-detail-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

.cs-blocks {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.cs-block h2 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

.cs-block-content.text-content {
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.cs-block.result-block {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-primary);
}

.cs-block.result-block h2 {
    border-bottom: none;
    margin-bottom: 1rem;
}

.cs-detail-footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}


/* Sidebar Card */
.cs-sidebar-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 2rem;
    position: sticky;
    top: 2rem;
    box-shadow: var(--shadow-sm);
}

.cs-sidebar-card h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.cs-sidebar-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* CTA Section */
.cs-cta-section {
    background: var(--bg-secondary);
    text-align: center;
    padding: 5rem 1.5rem;
    border-top: 1px solid var(--border-color);
}

.cs-cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cs-cta-content h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.cs-cta-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Responsive */
@media (max-width: 900px) {
    .cs-detail-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .cs-grid {
        grid-template-columns: 1fr;
    }
}