/* =============================================================
   Scan Pro Child — referenzen.css
   ============================================================= */

/* ---------------------------------------------------------------
   Barra de filtros
   --------------------------------------------------------------- */
.referenzen-filter-bar {
  background: var(--color-secondary);
  padding: 24px 0;
  position: sticky;
  top: 120px;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
}

.ref-filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.ref-filter-btn {
  padding: 8px 18px;
  border: 2px solid var(--color-border);
  border-radius: 30px;
  background: transparent;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

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

/* ---------------------------------------------------------------
   Seções de categorias
   --------------------------------------------------------------- */
.referenzen-sections {
  padding: 80px 0;
}

.ref-kategorie {
  margin-bottom: 80px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--color-border);
}

.ref-kategorie:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

/* Header da categoria: placeholder + descrição */
.ref-kategorie-header {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 56px;
  align-items: start;
  margin-bottom: 40px;
}

.ref-img-placeholder {
  width: 100%;
  height: 220px;
  background: var(--color-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}

.ref-kategorie-img img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-lg);
}

.ref-kategorie-text h2 {
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--color-text);
  line-height: 1.25;
}

.ref-kategorie-text p {
  font-size: 15px;
  line-height: 1.78;
  color: #555;
}

/* ---------------------------------------------------------------
   Lista de referências
   --------------------------------------------------------------- */
.ref-list-wrapper {
  background: var(--color-secondary);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  border-left: 3px solid var(--color-primary);
}

.ref-list-label {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1.8px;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.ref-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0 32px;
}

.ref-list li {
  font-size: 13.5px;
  color: var(--color-text);
  padding: 7px 0;
  border-bottom: 1px solid var(--color-border);
  line-height: 1.4;
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.ref-list li::before {
  content: '—';
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
  font-size: 11px;
}

/* Estado oculto para filtro JS */
.ref-kategorie.hidden {
  display: none;
}

/* ---------------------------------------------------------------
   Responsivo — 1024px
   --------------------------------------------------------------- */
@media (max-width: 1024px) {
  .ref-list { grid-template-columns: repeat(2, 1fr); }
}

/* ---------------------------------------------------------------
   Responsivo — 768px
   --------------------------------------------------------------- */
@media (max-width: 768px) {
  .referenzen-filter-bar { position: static; }

  .ref-kategorie-header {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .ref-img-placeholder { height: 160px; }

  .ref-list { grid-template-columns: 1fr; }

  .ref-list-wrapper { padding: 24px 20px; }

  .ref-kategorie {
    margin-bottom: 56px;
    padding-bottom: 56px;
  }
}