/**
 * Leaflet.LegendControl.css
 * 图例控件样式 — 点/线/面几何符号 + 字段分色可展开
 */

.leaflet-legend-control {
  background: var(--panel-bg, #fff);
  border: 1px solid var(--border-light, #ddd);
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  padding: 0;
  max-width: 240px;
  max-height: 55vh;
  overflow-y: auto;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-primary, #333);
  margin-bottom: 28px;
}

/* ========== 标题行 ========== */
.legend-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 10px;
  border-bottom: 1px solid var(--border-light, #eee);
  position: sticky;
  top: 0;
  background: var(--panel-bg, #fff);
  z-index: 2;
  border-radius: 5px 5px 0 0;
}

.legend-title {
  font-weight: 600;
  font-size: 12px;
}

.legend-count {
  font-size: 10px;
  color: var(--text-dim, #999);
  background: var(--bg-hover, #f0f0f0);
  border-radius: 8px;
  padding: 0 6px;
  line-height: 18px;
}

/* ========== 图例项列表 ========== */
.legend-items {
  padding: 3px 0;
}

/* ========== 通用行样式 ========== */
.legend-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  min-height: 22px;
}

.legend-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 11px;
}

/* ========== 几何符号（SVG 内联） ========== */
.legend-sym {
  flex-shrink: 0;
  vertical-align: middle;
}

.legend-sym-sm {
  width: 10px;
  height: 10px;
}

/* ========== 色块（面要素） ========== */
.legend-swatch {
  flex-shrink: 0;
  border-radius: 3px;
  border: 1px solid rgba(0, 0, 0, 0.15);
  display: inline-block;
}

.legend-swatch-sm {
  width: 7px;
  height: 7px;
}

/* ========== 图标 ========== */
.legend-icon-emoji {
  flex-shrink: 0;
  font-size: 13px;
  line-height: 1;
  width: 14px;
  text-align: center;
}

.legend-icon-img {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  border-radius: 2px;
  border: 1px solid rgba(0, 0, 0, 0.12);
}

/* ========== 模式标记 badge ========== */
.legend-badge {
  flex-shrink: 0;
  font-size: 9px;
  color: var(--text-dim, #999);
  background: var(--bg-faint, #eaeaea);
  border-radius: 3px;
  padding: 0 4px;
  line-height: 16px;
  white-space: nowrap;
}

/* ========== 可展开项（<details> 字段分色） ========== */
.legend-expandable {
  border-bottom: 1px solid var(--border-faint, #f4f4f4);
}

.legend-expand-row {
  cursor: pointer;
  user-select: none;
  list-style: none; /* 隐藏默认三角 */
}

.legend-expand-row::-webkit-details-marker {
  display: none;
}

.legend-expand-row::-moz-list-bullet {
  list-style-type: none;
}

/* 展开箭头 */
.legend-expand-arrow {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s ease;
}

.legend-expand-arrow::before {
  content: "";
  display: block;
  width: 0;
  height: 0;
  border-left: 4px solid var(--text-dim, #999);
  border-top: 3.5px solid transparent;
  border-bottom: 3.5px solid transparent;
}

details[open] > .legend-expand-row .legend-expand-arrow {
  transform: rotate(90deg);
}

/* 子项列表 */
.legend-sub-items {
  padding: 1px 0 4px 26px;
}

.legend-sub-item {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 1px 0;
  font-size: 10px;
}

.legend-sub-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-dim, #888);
  font-size: 10px;
}

.legend-sub-more {
  font-size: 9px;
  color: var(--text-dim, #bbb);
  padding: 1px 0 1px 16px;
  font-style: italic;
}

/* ========== 多色标记 ========== */
.legend-item-sequential .legend-badge {
  color: #9c27b0;
  background: rgba(156, 39, 176, 0.08);
}

/* ========== 折叠提示 ========== */
.legend-more {
  font-size: 10px;
  color: var(--text-dim, #999);
  text-align: center;
  padding: 4px 10px;
  font-style: italic;
}

/* ========== 深色主题 ========== */
[data-theme="dark"] .leaflet-legend-control {
  background: var(--panel-bg, #1a1a2e);
  border-color: var(--border-light, #333);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .legend-header {
  background: var(--panel-bg, #1a1a2e);
  border-color: var(--border-light, #333);
}

[data-theme="dark"] .legend-count {
  background: var(--bg-hover, #2a2a3e);
}

[data-theme="dark"] .legend-swatch {
  border-color: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .legend-icon-img {
  border-color: rgba(255, 255, 255, 0.15);
}

[data-theme="dark"] .legend-badge {
  background: var(--bg-faint, #2a2a3e);
}

[data-theme="dark"] .legend-item-sequential .legend-badge {
  background: rgba(156, 39, 176, 0.12);
}

[data-theme="dark"] .legend-expandable {
  border-color: var(--border-faint, #252535);
}

/* ========== 响应式：移动端收窄 ========== */
@media (max-width: 640px) {
  .leaflet-legend-control {
    max-width: 170px;
    font-size: 11px;
  }
  .legend-header {
    padding: 4px 8px;
  }
  .legend-row {
    padding: 3px 8px;
    gap: 4px;
  }
  .legend-name {
    font-size: 10px;
  }
  .legend-sub-items {
    padding-left: 22px;
  }
}