/* ==========================================================================
   BEYOĞLU TEKNOLOJİ - SET VE SİSTEM OLUŞTURUCU (Set Builder)
   İnteraktif Donanım & Yazılım Seti Sihirbazı
   ========================================================================== */

.set-builder-section {
  padding: 3rem 0;
  background-color: var(--bg-app);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 3.5rem;
}

.set-builder-box {
  background-color: #ffffff;
  border: 1px solid #e1e7ef;
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: 0 10px 30px rgba(23, 32, 51, 0.05);
}

.set-builder-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 2rem auto;
}

.set-builder-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background-color: #FDEDED;
  color: #d12131;
  font-weight: 800;
  font-size: 0.8rem;
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
  border: 1px solid #fcd7d9;
}

.set-builder-title {
  font-size: 2rem;
  font-weight: 900;
  color: var(--dark-navy);
  margin-bottom: 0.5rem;
}

.set-builder-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* 2 Kolonlu Seçici Izgara */
.set-builder-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.builder-column {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
}

.builder-col-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--border-color);
}

.builder-col-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--dark-navy);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.builder-col-step {
  background-color: #d12131;
  color: #ffffff;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Filtre Seçiciler */
.builder-filters {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.builder-select {
  flex: 1;
  min-width: 130px;
  padding: 0.5rem 0.65rem;
  border: 1px solid #cbd5e1;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  background-color: #ffffff;
  color: var(--dark-slate);
  outline: none;
  font-weight: 500;
}

.builder-select:focus {
  border-color: #d12131;
}

/* Seçilebilir Ürün Satırları */
.builder-list {
  max-height: 380px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding-right: 0.35rem;
}

.builder-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--trans-fast);
  position: relative;
}

.builder-item:hover {
  border-color: #d12131;
  background-color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.builder-item.selected {
  border-color: #d12131;
  background-color: #FDEDED;
  box-shadow: 0 0 0 2px rgba(209, 33, 49, 0.15);
}

.builder-radio {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid #cbd5e1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--trans-fast);
}

.builder-item.selected .builder-radio {
  border-color: #d12131;
  background-color: #d12131;
}

.builder-radio::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #ffffff;
  display: none;
}

.builder-item.selected .builder-radio::after {
  display: block;
}

.builder-item-thumb {
  width: 50px;
  height: 50px;
  object-fit: contain;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-subtle);
  background: #ffffff;
  flex-shrink: 0;
}

.builder-item-details {
  flex: 1;
}

.builder-item-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--dark-navy);
  line-height: 1.25;
  margin-bottom: 0.2rem;
}

.builder-item-spec {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.builder-item-price {
  font-family: var(--font-heading);
  font-weight: 800;
  color: #d12131;
  font-size: 0.95rem;
  flex-shrink: 0;
}

/* Set Özeti ve Sepete Ekle Alt Çubuğu */
.set-builder-footer {
  background: #1a1f2e;
  border-radius: var(--radius-lg);
  padding: 1.25rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #ffffff;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.set-summary-left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.set-selection-tags {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.set-tag {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.set-tag strong {
  color: #FDEDED;
}

.set-summary-right {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.set-total-box {
  text-align: right;
}

.set-total-label {
  font-size: 0.775rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.set-total-price {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.1;
}

.btn-set-cart {
  background: #d12131;
  color: #ffffff;
  font-weight: 800;
  font-size: 0.95rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 15px rgba(209, 33, 49, 0.4);
  transition: transform var(--trans-fast), background-color var(--trans-fast), box-shadow var(--trans-fast);
}

.btn-set-cart:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(209, 33, 49, 0.5);
  background: #b81423;
}

.btn-set-cart:active {
  background: #9e101d;
}