/* ==================================== */
/* TEMPLATE BUILDER - OVERLAY           */
/* ==================================== */

.builder-overlay {
  position: fixed;
  inset: 0;
  z-index: 500;
  background: rgba(26, 18, 12, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.builder-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}

.builder-panel {
  width: 95vw;
  height: 92vh;
  max-width: 1600px;
  background: var(--bg-canvas);
  border-radius: var(--border-radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  transform: translateY(16px);
  transition: transform var(--transition-normal);
}

.builder-overlay.is-open .builder-panel {
  transform: translateY(0);
}

/* ==================================== */
/* HEADER                               */
/* ==================================== */

.builder-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  background: var(--bg-sidebar);
  border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
}

.builder-title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.builder-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.builder-btn-icon {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  background: var(--bg-canvas);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.builder-btn-icon:hover {
  background: var(--bg-sidebar-hover);
  color: var(--text-primary);
}

.builder-btn-icon.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: white;
}

.builder-btn-close {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--border-radius-sm);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.builder-btn-close:hover {
  background: var(--accent-danger);
  color: white;
}

/* ==================================== */
/* MAIN CONTENT LAYOUT                  */
/* ==================================== */

.builder-content {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* ==================================== */
/* LEFT PALETTE                         */
/* ==================================== */

.builder-palette {
  width: 180px;
  min-width: 180px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-light);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.palette-title {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.palette-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.palette-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg-canvas);
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  cursor: grab;
  transition: all var(--transition-fast);
  user-select: none;
}

.palette-item:hover {
  border-color: var(--accent-primary);
  background: var(--bg-sidebar-hover);
}

.palette-item:active {
  cursor: grabbing;
  transform: scale(0.98);
}

.palette-item[draggable="true"]:active {
  opacity: 0.7;
}

.palette-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: var(--accent-primary);
  background: rgba(217, 119, 87, 0.1);
  border-radius: var(--border-radius-sm);
}

.palette-icon-svg {
  width: 16px;
  height: 16px;
  color: var(--accent-primary);
}

.palette-label {
  font-size: 13px;
  color: var(--text-primary);
}

/* ==================================== */
/* CENTER CANVAS                        */
/* ==================================== */

.builder-canvas-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg-main);
  overflow: auto;
  position: relative;
}

.builder-canvas {
  position: relative;
  background: var(--bg-canvas);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  max-width: 100%;
  max-height: 100%;
  display: none;
}

.builder-canvas.has-image {
  display: block;
}

.builder-canvas-image {
  display: block;
  max-width: 100%;
  max-height: calc(92vh - 180px);
  width: auto;
  height: auto;
}

.builder-canvas-overlay {
  position: absolute;
  inset: 0;
  pointer-events: auto;
}

.builder-canvas-overlay > * {
  pointer-events: auto;
}

/* Grid overlay */
.builder-canvas-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
  background:
    repeating-linear-gradient(
      0deg,
      rgba(217, 119, 87, 0.15) 0px,
      rgba(217, 119, 87, 0.15) 1px,
      transparent 1px,
      transparent 5%
    ),
    repeating-linear-gradient(
      90deg,
      rgba(217, 119, 87, 0.15) 0px,
      rgba(217, 119, 87, 0.15) 1px,
      transparent 1px,
      transparent 5%
    );
}

.builder-canvas-grid.visible {
  opacity: 1;
}

/* Empty state */
.builder-canvas-empty {
  text-align: center;
  color: var(--text-muted);
}

.builder-canvas-empty p {
  margin: 0 0 8px;
}

.builder-canvas-empty .help-text {
  font-size: 13px;
}

.builder-canvas.has-image + .builder-canvas-empty {
  display: none;
}

/* ==================================== */
/* FIELD ELEMENTS ON CANVAS             */
/* ==================================== */

.builder-field {
  position: absolute;
  border: 2px dashed var(--accent-primary);
  background: rgba(217, 119, 87, 0.08);
  border-radius: var(--border-radius-sm);
  cursor: move;
  min-width: 60px;
  min-height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.builder-field:hover {
  background: rgba(217, 119, 87, 0.15);
}

.builder-field.selected {
  border-style: solid;
  border-color: var(--accent-primary);
  background: rgba(217, 119, 87, 0.2);
  box-shadow: 0 0 0 3px rgba(217, 119, 87, 0.2);
}

.builder-field-label {
  font-size: 11px;
  color: var(--text-secondary);
  padding: 4px 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}

.builder-field-type {
  position: absolute;
  top: -8px;
  left: 4px;
  font-size: 9px;
  background: var(--accent-primary);
  color: white;
  padding: 1px 5px;
  border-radius: 3px;
  text-transform: uppercase;
  font-weight: 600;
}

/* Resize handles */
.builder-field-handle {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--accent-primary);
  border: 2px solid white;
  border-radius: 2px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.builder-field.selected .builder-field-handle {
  opacity: 1;
}

.builder-field-handle.nw { top: -5px; left: -5px; cursor: nwse-resize; }
.builder-field-handle.ne { top: -5px; right: -5px; cursor: nesw-resize; }
.builder-field-handle.sw { bottom: -5px; left: -5px; cursor: nesw-resize; }
.builder-field-handle.se { bottom: -5px; right: -5px; cursor: nwse-resize; }

/* ==================================== */
/* RIGHT PROPERTIES PANEL               */
/* ==================================== */

.builder-properties {
  width: 260px;
  min-width: 260px;
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border-light);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

.properties-title {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.properties-empty {
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
  padding: 20px 0;
}

.properties-content {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.property-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.property-group label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.property-group input[type="text"],
.property-group textarea {
  padding: 8px 10px;
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  background: var(--bg-canvas);
  font-size: 13px;
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
}

.property-group input[type="text"]:focus,
.property-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.property-group textarea {
  resize: vertical;
  min-height: 80px;
}

.property-checkbox {
  flex-direction: row;
}

.property-checkbox label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.property-checkbox input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent-primary);
}

.property-actions {
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

/* ==================================== */
/* FOOTER                               */
/* ==================================== */

.builder-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-sidebar);
  border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
}

.builder-template-name {
  display: flex;
  align-items: center;
  gap: 10px;
}

.builder-template-name label {
  font-size: 13px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.builder-template-name input {
  padding: 8px 12px;
  border: 1px solid var(--border-light);
  border-radius: var(--border-radius-sm);
  background: var(--bg-canvas);
  font-size: 13px;
  color: var(--text-primary);
  width: 200px;
  transition: border-color var(--transition-fast);
}

.builder-template-name input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.builder-actions {
  display: flex;
  gap: 10px;
}

/* ==================================== */
/* BUTTONS                              */
/* ==================================== */

.builder-overlay .btn-primary,
.builder-overlay .btn-secondary,
.builder-overlay .btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--border-radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.builder-overlay .btn-primary {
  background: var(--accent-primary);
  color: white;
}

.builder-overlay .btn-primary:hover {
  background: var(--accent-primary-hover);
}

.builder-overlay .btn-secondary {
  background: var(--bg-canvas);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.builder-overlay .btn-secondary:hover {
  background: var(--bg-sidebar-hover);
}

.builder-overlay .btn-danger {
  background: var(--accent-danger);
  color: white;
  width: 100%;
}

.builder-overlay .btn-danger:hover {
  background: var(--accent-danger-hover);
}

/* ==================================== */
/* DRAG PREVIEW                         */
/* ==================================== */

.builder-drag-preview {
  position: fixed;
  pointer-events: none;
  z-index: 1000;
  padding: 8px 12px;
  background: var(--accent-primary);
  color: white;
  border-radius: var(--border-radius-sm);
  font-size: 12px;
  font-weight: 500;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  opacity: 0.9;
}

/* ==================================== */
/* DROP ZONE FEEDBACK                   */
/* ==================================== */

.builder-canvas-overlay.drag-over {
  background: rgba(217, 119, 87, 0.1);
  outline: 2px dashed var(--accent-primary);
  outline-offset: -2px;
}