/* ═══════════════════════════════════════════════════
   Approach 3 — Visual Room Builder
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,600;0,700;1,400&family=DM+Sans:wght@400;500;600;700&display=swap');

:root {
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-ui: 'DM Sans', 'Segoe UI', system-ui, sans-serif;
}

body {
  font-family: var(--font-ui);
  background: #F9F8F5;
  overflow-x: hidden;
}

/* ─── PAGE LAYOUT ─── */
.builder-page {
  padding: 1rem 1.5rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.builder-page__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--color-primary-dark);
  margin-bottom: 0.25rem;
}

.builder-page__subtitle {
  color: var(--color-text-light);
  font-size: 0.88rem;
  margin-bottom: 1.5rem;
}

/* ─── MAIN LAYOUT: 3 columns ─── */
.builder-layout {
  display: grid;
  grid-template-columns: 220px 1fr 260px;
  gap: 1rem;
  min-height: 520px;
}

/* ─── LEFT: TOOLBOX ─── */
.builder-toolbox {
  background: #fff;
  border: 1px solid #ECEAE4;
  border-radius: 12px;
  padding: 1.25rem;
}

.builder-toolbox__title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.builder-toolbox__shapes {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.shape-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.75rem;
  border: 2px solid #ECEAE4;
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  transition: all 0.15s ease;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
}

.shape-btn:hover {
  border-color: var(--color-secondary-light);
  background: #FDFCFA;
}

.shape-btn.active {
  border-color: var(--color-secondary);
  background: rgba(197, 153, 58, 0.06);
  color: var(--color-secondary-dark);
}

.shape-btn svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
  flex-shrink: 0;
}

.builder-toolbox__actions {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding-top: 0.75rem;
  border-top: 1px solid #ECEAE4;
}

.action-btn {
  padding: 0.5rem 0.75rem;
  border: 1px solid #E0DDD5;
  border-radius: 6px;
  background: #fff;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-light);
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
}

.action-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.action-btn--danger {
  color: var(--color-error);
}

.action-btn--danger:hover {
  border-color: var(--color-error);
}

/* ─── TIER COLOR LEGEND ─── */
.tier-legend {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #ECEAE4;
}

.tier-legend__title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.tier-legend__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.2rem 0;
}

.tier-legend__swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.tier-legend__label {
  font-size: 0.78rem;
  color: var(--color-text-light);
}

/* ─── CENTER: CANVAS ─── */
.builder-canvas-wrap {
  background: #fff;
  border: 1px solid #ECEAE4;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.builder-canvas-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #ECEAE4;
  background: #FAFAF8;
}

.builder-canvas-stats {
  display: flex;
  gap: 1.5rem;
}

.canvas-stat {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}

.canvas-stat__value {
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--color-primary-dark);
}

.canvas-stat__label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.canvas-stat--highlight .canvas-stat__value {
  color: var(--color-secondary-dark);
}

.builder-canvas-hint {
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.builder-canvas {
  flex: 1;
  cursor: crosshair;
  display: block;
}

/* ─── RIGHT: CONFIG PANEL ─── */
.builder-config {
  background: #fff;
  border: 1px solid #ECEAE4;
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.config-group {
  display: flex;
  flex-direction: column;
}

.config-group__label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

.config-select {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 2px solid #E8E6E0;
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: var(--font-ui);
  color: var(--color-text);
  background: #fff;
  appearance: none;
  cursor: pointer;
  transition: border-color 0.2s ease;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23999' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
  padding-right: 2rem;
}

.config-select:focus {
  outline: none;
  border-color: var(--color-secondary);
}

/* ─── CONFIG ADD-ON TOGGLES ─── */
.config-group--addons {
  padding-top: 0.75rem;
  border-top: 1px solid #ECEAE4;
}

.config-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0;
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--color-text);
  transition: color 0.15s ease;
}

.config-toggle:hover {
  color: var(--color-secondary-dark);
}

.config-toggle input[type="checkbox"] {
  accent-color: var(--color-secondary);
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.config-toggle__text {
  line-height: 1.3;
}

/* ─── SHAPE LIST ─── */
.shape-list {
  border-bottom: 1px solid #ECEAE4;
  padding-bottom: 0.75rem;
}

.shape-list__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.shape-list__title {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.shape-list__items {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  max-height: 180px;
  overflow-y: auto;
}

.shape-list__empty {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-style: italic;
  padding: 0.5rem 0;
}

.shape-list__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}

.shape-list__item:hover {
  background: #F5F4F0;
}

.shape-list__item--selected {
  background: rgba(197, 153, 58, 0.08);
  outline: 2px solid var(--color-secondary);
}

.shape-list__swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

.shape-list__info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.shape-list__name {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text);
}

.shape-list__meta {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.shape-list__delete {
  width: 20px;
  height: 20px;
  border: none;
  background: none;
  color: var(--color-text-muted);
  font-size: 1rem;
  cursor: pointer;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.15s;
}

.shape-list__delete:hover {
  background: rgba(220, 53, 69, 0.1);
  color: var(--color-error);
}

/* ─── CONFIG EDITOR HEADER ─── */
.config-editor-header {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  padding: 0.5rem 0.6rem;
  border-radius: 6px;
  background: #F5F4F0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.config-editor-header--editing {
  background: rgba(197, 153, 58, 0.08);
  color: var(--color-secondary-dark);
  border: 1px solid rgba(197, 153, 58, 0.2);
}

.config-editor-header__swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}

/* ─── QUANTITY ADD-ONS ─── */
.config-group--qty {
  padding-top: 0.75rem;
  border-top: 1px solid #ECEAE4;
}

.qty-addon-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0;
}

.qty-addon-label {
  font-size: 0.82rem;
  color: var(--color-text);
}

.qty-addon-input {
  width: 60px;
  padding: 0.35rem 0.4rem;
  border: 2px solid #E8E6E0;
  border-radius: 6px;
  font-size: 0.85rem;
  text-align: center;
  font-weight: 600;
  font-family: var(--font-ui);
}

.qty-addon-input:focus {
  outline: none;
  border-color: var(--color-secondary);
}

/* ─── BOTTOM: PRICE BAR ─── */
.builder-price-bar {
  background: var(--color-primary-dark);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.builder-price-bar__left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.builder-price-bar__label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

.builder-price-bar__range {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-secondary-light);
}

.builder-price-bar__range .sep {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.65em;
  margin: 0 0.2em;
}

.builder-price-bar__incomplete {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.88rem;
}

.builder-price-bar__actions {
  display: flex;
  gap: 0.5rem;
}

.builder-price-bar__btn {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.15s ease;
}

.builder-price-bar__btn--details {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
}

.builder-price-bar__btn--details:hover {
  background: rgba(255, 255, 255, 0.18);
}

.builder-price-bar__btn--copy {
  background: var(--color-secondary);
  color: #fff;
}

.builder-price-bar__btn--copy:hover {
  background: var(--color-secondary-dark);
}

/* ─── BREAKDOWN MODAL ─── */
.breakdown-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 300;
  display: none;
  align-items: center;
  justify-content: center;
}

.breakdown-overlay.visible {
  display: flex;
}

.breakdown-modal {
  background: #fff;
  border-radius: 14px;
  padding: 2rem;
  max-width: 480px;
  width: 90%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.breakdown-modal__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--color-primary-dark);
  margin-bottom: 1rem;
}

.breakdown-modal__row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid #F0EEE9;
  font-size: 0.88rem;
}

.breakdown-modal__row:last-of-type {
  border-bottom: none;
}

.breakdown-modal__label {
  color: var(--color-text-light);
}

.breakdown-modal__amount {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.breakdown-modal__disclaimer {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-top: 1rem;
  line-height: 1.4;
}

.breakdown-modal__close {
  display: block;
  width: 100%;
  margin-top: 1.25rem;
  padding: 0.6rem;
  border: 1px solid #E0DDD5;
  border-radius: 8px;
  background: #fff;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.15s ease;
}

.breakdown-modal__close:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ─── BREAKDOWN PER-SHAPE SECTIONS ─── */
.breakdown-shape-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 0 0.35rem;
  margin-top: 0.5rem;
  border-top: 2px solid #ECEAE4;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-primary-dark);
}

.breakdown-shape-header:first-child {
  margin-top: 0;
  border-top: none;
}

.breakdown-shape-swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  flex-shrink: 0;
}

.breakdown-shape-name {
  flex: 1;
}

.breakdown-shape-subtotal {
  font-variant-numeric: tabular-nums;
  color: var(--color-secondary-dark);
}

.breakdown-modal__row--indented {
  padding-left: 1.25rem;
}

.breakdown-modal__row--total {
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  border-top: 2px solid var(--color-primary-dark);
  font-weight: 700;
  font-size: 0.95rem;
}

.breakdown-modal__row--total .breakdown-modal__label {
  color: var(--color-primary-dark);
}

.breakdown-modal__row--total .breakdown-modal__amount {
  color: var(--color-secondary-dark);
  font-size: 1rem;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 960px) {
  .builder-layout {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
  }

  .builder-toolbox {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-start;
  }

  .builder-toolbox__title {
    width: 100%;
  }

  .builder-toolbox__shapes {
    flex-direction: row;
    margin-bottom: 0;
  }

  .builder-canvas-wrap {
    grid-column: 1 / -1;
    min-height: 350px;
  }

  .builder-config {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  }
}

@media (max-width: 600px) {
  .builder-page {
    padding: 1rem;
  }

  .builder-layout {
    grid-template-columns: 1fr;
  }

  .builder-toolbox__shapes {
    flex-wrap: wrap;
  }

  .builder-price-bar {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .builder-price-bar__left {
    flex-direction: column;
    gap: 0.25rem;
  }

  .builder-price-bar__actions {
    justify-content: center;
  }
}