/* Case study carousel — horizontal strip; one section per page */

.case-study-section {
    background-color: var(--color-bg-light);
    padding: var(--spacing-xl) 0;
}

.case-study-inner {
    padding-left: var(--spacing-sm);
    padding-right: var(--spacing-sm);
}

.case-study-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.case-study-title {
    font-size: clamp(1.35rem, 2.5vw, 1.85rem);
    font-weight: 700;
    color: var(--color-text-dark);
    line-height: 1.25;
    max-width: 22ch;
}

.case-study-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border-radius: 999px;
    background: var(--color-primary);
    color: var(--color-text-white);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.case-study-cta:hover {
    background: var(--color-secondary);
    color: var(--color-text-white);
}

.case-study-cta:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 3px;
}

.case-study-layout {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.case-study-track {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-padding-inline: var(--spacing-xs);
    padding-bottom: var(--spacing-xs);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}

.case-study-track:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
}

.case-study-card {
    flex: 0 0 min(85vw, 320px);
    scroll-snap-align: start;
    background: var(--color-bg-white);
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(26, 32, 44, 0.08);
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.case-study-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.case-study-card-brand {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.case-study-card-link {
    font-size: 0.85rem;
    color: var(--color-text-light);
    text-decoration: underline;
    text-underline-offset: 3px;
    white-space: nowrap;
    flex-shrink: 0;
}

.case-study-card-link:hover {
    color: var(--color-primary);
}

.case-study-card-media {
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--color-bg-light);
}

.case-study-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.case-study-card-stats {
    display: flex;
    align-items: baseline;
    gap: 0.65rem;
    margin-top: var(--spacing-md);
}

.case-study-card-value {
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 800;
    color: var(--color-text-dark);
    line-height: 1;
    letter-spacing: -0.03em;
}

.case-study-card-label {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.35;
    flex: 1;
    min-width: 0;
}

.case-study-card-rule {
    border: none;
    border-top: 1px solid #e2e8f0;
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.case-study-card-tag {
    display: inline-block;
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-light);
    background: #edf2f7;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
}

.case-study-nav {
    display: flex;
    gap: var(--spacing-sm);
}

.case-study-arrow {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid #e2e8f0;
    background: var(--color-bg-white);
    color: var(--color-text-dark);
    font-size: 1.1rem;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.case-study-arrow:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.case-study-arrow:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.case-study-arrow:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

@media (min-width: 768px) {
    .case-study-card {
        flex: 0 0 300px;
    }
}