/* =================================================================
   IDEH SMART HOME — SMART HOME BUILDER («خانه هوشمند خودت را بساز»)
   Integrated with Dual-Theme Design Tokens (Light / Dark)
   ================================================================= */

.builder-section {
  padding-block: 4rem;
  position: relative;
}

.builder-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-liquid-md);
  padding: clamp(1.8rem, 3.5vw, 3rem);
  position: relative;
  overflow: hidden;
  color: var(--color-text);
  transition: var(--transition-smooth);
}

.builder-stepper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  position: relative;
  flex-wrap: wrap;
}

.builder-step-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1.4rem;
  border-radius: var(--radius-pill);
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
}

.builder-step-pill.active {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 4px 14px var(--color-primary-glow);
}

.builder-step-pill.completed {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-color: var(--color-border-brand);
}

.builder-step-pane {
  display: none;
  animation: fadeInStep 0.35s ease-out;
}

.builder-step-pane.active {
  display: block;
}

@keyframes fadeInStep {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.builder-step-title {
  font-size: 1.35rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.builder-step-subtitle {
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: 2rem;
}

/* Spaces Selection Grid */
.spaces-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.2rem;
  margin-bottom: 2.5rem;
}

.space-card {
  padding: 1.6rem 1.2rem;
  border-radius: var(--radius-lg);
  background: var(--color-surface-subtle);
  border: 2px solid var(--color-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.space-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-liquid-sm);
}

.space-card.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  box-shadow: 0 4px 16px var(--color-primary-glow);
}

.space-icon {
  width: 58px;
  height: 58px;
  border-radius: 18px;
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 0.9rem;
  box-shadow: var(--shadow-liquid-sm);
  transition: var(--transition-fast);
}

.space-card.selected .space-icon {
  transform: scale(1.1);
  border: 1px solid var(--color-primary);
}

.space-name {
  font-size: 1.02rem;
  font-weight: 800;
  margin-bottom: 0.2rem;
  color: var(--color-text);
}

.space-en {
  font-size: 0.74rem;
  color: var(--color-text-muted);
  font-family: inherit;
}

/* Features Multi-Select Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.2rem;
  margin-bottom: 2.5rem;
}

.feature-toggle-card {
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius-md);
  background: var(--color-surface-subtle);
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.feature-toggle-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-primary);
}

.feature-toggle-card.selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  box-shadow: 0 4px 14px var(--color-primary-glow);
}

.feature-checkbox {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  border: 2px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 900;
  color: #fff;
  background: var(--color-surface);
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.feature-toggle-card.selected .feature-checkbox {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.feature-info h4 {
  font-size: 0.94rem;
  font-weight: 800;
  margin-bottom: 0.2rem;
  color: var(--color-text);
}

.feature-info p {
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

/* Builder Step Navigation Actions */
.builder-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.btn-builder-prev, .btn-builder-next {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius-pill);
  font-weight: 800;
  font-size: 0.92rem;
  cursor: pointer;
  transition: var(--transition-fast);
  border: none;
}

.btn-builder-prev {
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn-builder-prev:hover {
  background: var(--color-border);
}

.btn-builder-next {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
  box-shadow: 0 4px 14px var(--color-primary-glow);
}

.btn-builder-next:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--color-primary-glow);
}

/* Generated Package View (Step 3) */
.builder-result-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (max-width: 860px) {
  .builder-result-grid {
    grid-template-columns: 1fr;
  }
}

.builder-package-summary {
  background: var(--color-surface-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
}

.builder-items-list {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-top: 1rem;
}

.builder-item-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.7rem 0;
  border-bottom: 1px dashed var(--color-border);
  font-size: 0.88rem;
}

.builder-item-name {
  font-weight: 700;
  color: var(--color-text);
}

.builder-item-price {
  font-weight: 800;
  color: var(--color-primary);
}

.builder-pricing-card {
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: 0 8px 30px var(--color-primary-glow);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.builder-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius-pill);
  background: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: 1rem;
  align-self: center;
}

.builder-total-price {
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-text);
  margin-bottom: 0.5rem;
}

.builder-discount-tag {
  font-size: 0.82rem;
  font-weight: 800;
  color: #10b981;
  background: #ecfdf5;
  padding: 0.25rem 0.8rem;
  border-radius: var(--radius-pill);
  display: inline-block;
  margin-bottom: 1.5rem;
  align-self: center;
}

.btn-add-builder-cart {
  width: 100%;
  padding: 1rem;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
  border: none;
  font-weight: 800;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 4px 16px var(--color-primary-glow);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}

.btn-add-builder-cart:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-primary-glow);
}

/* ==========================================================================
   SMART HOME BUILDER RESPONSIVE STYLES
   ========================================================================== */
@media (max-width: 860px) {
  .builder-container {
    padding: clamp(1.2rem, 3vw, 2rem);
  }
  .builder-result-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 576px) {
  .builder-stepper {
    gap: 0.5rem;
    margin-bottom: 1.5rem;
  }
  .builder-step-pill {
    padding: 0.45rem 0.9rem;
    font-size: 0.78rem;
  }
  .builder-step-pill .step-text {
    font-size: 0.75rem;
  }
  .spaces-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
    margin-bottom: 1.5rem;
  }
  .space-card {
    padding: 1.2rem 0.6rem;
  }
  .space-icon {
    width: 44px;
    height: 44px;
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
  }
  .space-name {
    font-size: 0.9rem;
  }
  .features-grid {
    grid-template-columns: 1fr;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
  }
  .feature-toggle-card {
    padding: 1rem;
    gap: 0.8rem;
  }
  .builder-package-summary {
    padding: 1.2rem;
  }
  .builder-pricing-card {
    padding: 1.5rem 1rem;
  }
  .builder-total-price {
    font-size: 1.6rem;
  }
}

@media (max-width: 360px) {
  .spaces-grid {
    grid-template-columns: 1fr;
  }
  .builder-stepper {
    flex-direction: column;
    align-items: stretch;
  }
  .builder-step-pill {
    justify-content: center;
  }
}