/* ═══════════════════════════════════════════════════════════════
   HIERARQUIA DE CAMADAS
═══════════════════════════════════════════════════════════════ */
.layer-category { margin-bottom: 4px; }

.layer-category-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--r-md);
  cursor: pointer;
  user-select: none;
  transition: background var(--t-fast);
}

.layer-category-header:hover { background: var(--md-grey-100); }

.layer-category-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.layer-category-icon.blue   { background: var(--md-blue-50);  color: var(--md-blue-600); }
.layer-category-icon.green  { background: #e6f4ea;             color: var(--md-green-700);}
.layer-category-icon.yellow { background: #fef7e0;             color: var(--md-yellow-700);}
.layer-category-icon.purple { background: #f3e8fd;             color: #7b1fa2;}
.layer-category-icon.orange { background: #fff3e0;             color: #e65100;}

.layer-category-label {
  flex: 1;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.layer-category-chevron {
  color: var(--text-hint);
  transition: transform var(--t-fast);
  flex-shrink: 0;
}
.layer-category-chevron.open { transform: rotate(180deg); }

.layer-category-body { padding: 2px 0 4px 8px; }


/* ── Subcategoria ─────────────────────────────────────────────── */
.layer-subcategory { margin-bottom: 2px; }

.layer-subcategory-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: var(--r-sm);
  cursor: pointer;
  user-select: none;
  transition: background var(--t-fast);
}

.layer-subcategory-header:hover { background: var(--md-grey-100); }

.layer-subcategory-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #bdc1c6;
  flex-shrink: 0;
  margin-left: 2px;
}

.layer-subcategory-label {
  flex: 1;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.layer-subcategory-chevron {
  color: var(--text-hint);
  transition: transform var(--t-fast);
  flex-shrink: 0;
}
.layer-subcategory-chevron.open { transform: rotate(180deg); }

.layer-subcategory-body {
  padding: 2px 0 4px 14px;
  display: none;
}


/* ── Linha de camada ──────────────────────────────────────────── */
.layer-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border-radius: var(--r-sm);
  transition: background var(--t-fast);
}

.layer-row:hover { background: var(--md-grey-100); }
.layer-row:hover .layer-row-actions { opacity: 1; }

.md-checkbox {
  position: relative;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.md-checkbox input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
  margin: 0;
}

.md-checkbox-box {
  width: 16px;
  height: 16px;
  border: 2px solid var(--md-grey-500);
  border-radius: 3px;
  background: transparent;
  transition: all var(--t-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.md-checkbox input:checked ~ .md-checkbox-box {
  background: var(--primary);
  border-color: var(--primary);
}

.md-checkbox-check { opacity: 0; transition: opacity var(--t-fast); }
.md-checkbox input:checked ~ .md-checkbox-box .md-checkbox-check { opacity: 1; }

.layer-row-name {
  flex: 1;
  font-size: 12.5px;
  font-weight: 400;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.layer-row-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  opacity: 0;
  transition: opacity var(--t-fast);
  flex-shrink: 0;
}

.icon-btn {
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  border-radius: var(--r-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-hint);
  transition: background var(--t-fast), color var(--t-fast);
}

.icon-btn:hover { background: var(--md-grey-200); color: var(--text-secondary); }

.dl-wrap { position: relative; }

.dl-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-3);
  overflow: hidden;
  min-width: 128px;
  z-index: 2000;
}

.dl-menu.open { display: block; }

.dl-menu button {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 12px;
  border: none;
  background: transparent;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--t-fast);
  text-align: left;
}

.dl-menu button:hover { background: var(--md-grey-100); }
.dl-menu button svg   { color: var(--text-hint); flex-shrink: 0; }