/* ============================================================
   referenzen.css
   Referenzen-Seite und responsive Anpassungen
   ============================================================ */

/* ============================================================
   10. Referenzen-Seite
   ============================================================ */
.cases-section {
  padding: 4rem 0 2rem;
}

.case-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition:
    box-shadow var(--transition),
    transform var(--transition);
}

.case-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.case-card__header {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  padding: 1.75rem 2rem;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  position: relative;
}

.case-card__header:hover {
  background: var(--color-bg-subtle);
}

.case-card__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.case-card__number {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-primary);
  letter-spacing: 0.06em;
}

.case-card__tags {
  font-size: 0.78rem;
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.case-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-text);
  margin: 0;
  padding-right: 2rem;
}

.case-card__toggle {
  position: absolute;
  right: 1.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.2rem;
  transition: transform var(--transition);
}

.case-card__toggle::after {
  content: "+";
  font-size: 1.4rem;
  line-height: 1;
}

.case-card--open .case-card__toggle::after,
.case-card[data-open] .case-card__toggle::after {
  content: "–";
}

/* Accordion body – collapsed */
.case-card__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  padding: 0 2rem;
}

/* Accordion body – expanded */
.case-card--open .case-card__body,
.case-card[data-open] .case-card__body {
  max-height: 2000px;
  padding: 0 2rem 1.75rem;
}

.case-card__block {
  margin-bottom: 1.25rem;
}

.case-card__label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  margin: 0 0 0.4rem;
}

.case-card__block p {
  margin: 0;
  line-height: 1.7;
  color: var(--color-text-light);
}

/* Preview block – always visible */
.case-card__preview {
  padding: 0 2rem 1.25rem;
}

.case-card__quote {
  background: var(--color-sand-light);
  border-left: 3px solid var(--color-sand);
  padding: 1rem 1.25rem;
  margin: 1.25rem 0 0;
  font-style: italic;
  color: var(--color-text);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.case-card__quote cite {
  display: block;
  font-style: normal;
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-top: 0.4rem;
}

/* Additional references */
.references-overview {
  background: var(--color-bg-subtle);
  padding: 3rem 0;
  text-align: center;
  margin-top: 2rem;
}

.references-overview__title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

.references-overview__list {
  color: var(--color-muted);
  font-size: 0.9rem;
}

/* ============================================================
   Responsive – Referenzen
   ============================================================ */
@media (max-width: 768px) {
  .case-card__header {
    padding: 1.25rem;
  }

  .case-card__body,
  .case-card--open .case-card__body,
  .case-card[data-open] .case-card__body {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .case-card__title {
    font-size: 1.05rem;
    padding-right: 2rem;
  }
}