/* === KML 按位置分割工具 - 暗色玻璃拟态主题 === */

:root {
  --bg-dark: #0f1117;
  --bg-panel: rgba(22, 26, 37, 0.85);
  --bg-panel-solid: #161a25;
  --bg-input: rgba(30, 35, 50, 0.8);
  --bg-hover: rgba(40, 45, 65, 0.8);
  --border: rgba(80, 90, 120, 0.4);
  --border-active: rgba(100, 180, 255, 0.6);
  --text: #e0e4ec;
  --text-dim: #8a90a0;
  --text-bright: #ffffff;
  --accent: #4a9eff;
  --accent-glow: rgba(74, 158, 255, 0.3);
  --success: #4caf50;
  --warn: #ff9800;
  --error: #f44336;
  --glass-blur: blur(12px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  min-height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: 13px;
  color: var(--text);
  background: var(--bg-dark);
}

#app {
  height: 100vh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Header ===== */
.app-header {
  height: 48px;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--bg-panel);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}
.app-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-bright);
  white-space: nowrap;
}
.header-actions { display: flex; gap: 4px; }

/* ===== Main Layout ===== */
.main-content {
  flex: 1;
  display: flex;
  overflow: hidden;
}

/* ===== Control Panel ===== */
.control-panel {
  width: 380px;
  min-width: 380px;
  background: var(--bg-panel);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 50;
}
.control-panel::-webkit-scrollbar { width: 6px; }
.control-panel::-webkit-scrollbar-track { background: transparent; }
.control-panel::-webkit-scrollbar-thumb {
  background: rgba(80,90,120,0.3);
  border-radius: 3px;
}
.control-panel::-webkit-scrollbar-thumb:hover { background: rgba(80,90,120,0.5); }

/* ===== Mode Tabs ===== */
.mode-tabs {
  display: flex;
  padding: 8px 12px;
  gap: 4px;
  border-bottom: 1px solid var(--border);
}
.mode-tab {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-dim);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
  white-space: nowrap;
}
.mode-tab:hover {
  color: var(--text);
  background: var(--bg-hover);
}
.mode-tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 2px 12px var(--accent-glow);
}

.mode-panel { display: none; }
.mode-panel.active { display: block; }

/* ===== Panel Sections ===== */
.panel-section {
  padding: 14px 12px;
  border-bottom: 1px solid var(--border);
  animation: fadeIn 0.3s ease;
}
.section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-bright);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(74,158,255,0.15);
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

/* ===== Upload Zone ===== */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 24px 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--bg-input);
}
.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent);
  background: rgba(74,158,255,0.05);
  box-shadow: 0 0 16px var(--accent-glow);
}
.upload-icon { font-size: 28px; display: block; margin-bottom: 6px; }
.upload-text {
  font-size: 12px;
  color: var(--text-dim);
}

/* ===== File List ===== */
.file-list { margin-top: 8px; }
.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--bg-input);
  border-radius: 6px;
  margin-bottom: 4px;
  font-size: 12px;
}
.file-item-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}
.file-item-meta {
  font-size: 11px;
  color: var(--text-dim);
  margin-left: 8px;
  white-space: nowrap;
}
.file-item-remove {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 14px;
  margin-left: 8px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all 0.15s;
}
.file-item-remove:hover { color: var(--error); background: rgba(244,67,54,0.1); }

/* ===== KML Info ===== */
.kml-info {
  background: var(--bg-input);
  border-radius: 8px;
  padding: 10px 12px;
  margin-top: 8px;
  border-left: 3px solid var(--accent);
}
.kml-info-row {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  padding: 2px 0;
}
.kml-info-row .label { color: var(--text-dim); }
.kml-info-row .value { color: var(--text); font-weight: 500; }

/* ===== Draw Tools ===== */
.draw-tools {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}
.draw-btn {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.draw-btn:hover { background: var(--bg-hover); border-color: var(--accent); }
.draw-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  box-shadow: 0 2px 10px var(--accent-glow);
}
.draw-icon { font-size: 14px; }

.draw-actions {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

/* ===== Select Stats ===== */
.select-stats {
  background: var(--bg-input);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 8px;
  border-left: 3px solid var(--success);
  font-size: 13px;
  color: var(--success);
}

/* ===== Feature List ===== */
.feature-list {
  max-height: 200px;
  overflow-y: auto;
}
.feature-list::-webkit-scrollbar { width: 4px; }
.feature-list::-webkit-scrollbar-thumb { background: rgba(80,90,120,0.3); border-radius: 2px; }

.feature-item {
  display: flex;
  align-items: center;
  padding: 5px 8px;
  font-size: 11px;
  color: var(--text-dim);
  border-bottom: 1px solid rgba(80,90,120,0.1);
  gap: 8px;
}
.feature-item .feat-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}
.feature-item .feat-type {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 3px;
  background: var(--bg-input);
  color: var(--text-dim);
  white-space: nowrap;
}

/* ===== Result List (Split Mode) ===== */
.result-list { margin-bottom: 8px; }
.result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  background: var(--bg-input);
  border-radius: 6px;
  margin-bottom: 6px;
  transition: background 0.15s;
}
.result-item:hover { background: var(--bg-hover); }
.result-item-name {
  flex: 1;
  font-size: 12px;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.result-item-count {
  font-size: 11px;
  color: var(--accent);
  margin: 0 10px;
  white-space: nowrap;
  font-weight: 600;
}
.result-item-download {
  background: none;
  border: 1px solid var(--border);
  color: var(--accent);
  cursor: pointer;
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 4px;
  transition: all 0.15s;
  white-space: nowrap;
}
.result-item-download:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-row { margin-top: 8px; }
.status-inline {
  margin-top: 8px;
  font-size: 12px;
  min-height: 18px;
}
.status-inline.success { color: var(--success); }
.status-inline.error { color: var(--error); }
.status-inline.info { color: var(--accent); }

/* ===== Help Box ===== */
.help-box {
  font-size: 11px;
  color: var(--text-dim);
  background: rgba(74,158,255,0.05);
  border-left: 2px solid var(--accent);
  padding: 8px 10px;
  border-radius: 4px;
  margin-top: 8px;
  line-height: 1.5;
}

/* ===== Status Bar ===== */
.status-bar {
  height: 28px;
  min-height: 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  background: var(--bg-panel);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-dim);
  z-index: 100;
}
.status-right { margin-left: auto; }

/* ===== Map Panel ===== */
.map-panel {
  flex: 1;
  position: relative;
  overflow: hidden;
}
.map-toolbar {
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  z-index: 1000;
  display: flex;
  gap: 4px;
  align-items: center;
}
.map-select { width: 130px; }
.btn-map-toggle {
  font-size: 11px;
}
.map-container {
  width: 100%;
  height: 100%;
}
.coord-display {
  position: absolute;
  bottom: 6px;
  right: 10px;
  z-index: 1000;
  font-size: 11px;
  color: var(--text-dim);
  background: rgba(0,0,0,0.6);
  padding: 2px 8px;
  border-radius: 4px;
  pointer-events: none;
}

/* ===== Leaflet Dark Overrides ===== */
.leaflet-container { background: var(--bg-dark) !important; }
.leaflet-control-zoom a {
  background: var(--bg-panel) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
}
.leaflet-control-zoom a:hover { background: var(--bg-hover) !important; }
.leaflet-control-attribution {
  background: rgba(0,0,0,0.5) !important;
  color: var(--text-dim) !important;
  font-size: 10px !important;
}

/* Leaflet Draw overrides */
.leaflet-draw-toolbar a {
  background: var(--bg-panel) !important;
  border: 1px solid var(--border) !important;
}
.leaflet-draw-toolbar a:hover { background: var(--bg-hover) !important; }
.leaflet-draw-actions a {
  background: var(--bg-panel-solid) !important;
  color: var(--text) !important;
}
.leaflet-draw-tooltip {
  background: var(--bg-panel-solid) !important;
  color: var(--text) !important;
  border: 1px solid var(--border) !important;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4) !important;
}
.leaflet-draw-tooltip:before {
  border-right-color: var(--border) !important;
}

/* ===== Leaflet Draw toolbar positioning ===== */
.leaflet-draw { position: absolute; top: 44px; right: 10px; z-index: 1000; }
.leaflet-draw-toolbar { margin-top: 0 !important; }

/* ===== Form Elements ===== */
.form-group {
  margin-bottom: 12px;
}
.form-label {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.form-text, .form-select {
  width: 100%;
  padding: 7px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}
.form-text:focus, .form-select:focus { border-color: var(--border-active); }
.form-select option { background: var(--bg-panel-solid); color: var(--text); }

.form-row { display: flex; gap: 6px; align-items: center; }
.form-row .form-text { flex: 1; }
.form-hint { display: block; margin-top: 4px; font-size: 11px; color: var(--text-dim); }

/* 参考比例：标注字号随缩放同步（由 JS 设置 --kml-symbol-scale） */
.leaflet-tooltip { font-size: calc(12px * var(--kml-symbol-scale, 1)); }

/* 点要素名称/编号徽标（divIcon） */
.kml-num-icon { background: transparent !important; border: none !important; }
.kml-num-icon-inner {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  transform: translate(-50%, -50%); /* 以所在点为中心 */
  white-space: nowrap;
  font: 600 11px/1 system-ui, -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
  font-size: calc(11px * var(--kml-symbol-scale, 1));
  text-shadow: 0 0 2px #fff, 0 0 2px #fff, 0 0 3px #fff; /* 白描边保证压在深色底上可读 */
}
.kml-num-dot {
  width: 6px; height: 6px; border-radius: 50%;
  display: inline-block; box-shadow: 0 0 2px rgba(0,0,0,.4);
}
.kml-num-txt { letter-spacing: .2px; }

/* ===== Buttons ===== */
.btn-primary {
  display: block;
  width: 100%;
  padding: 10px 16px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.btn-primary:hover {
  box-shadow: 0 4px 16px var(--accent-glow);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-secondary {
  display: block;
  width: 100%;
  padding: 10px 16px;
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border-active);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.btn-secondary:hover { background: var(--bg-hover); }

.btn-small {
  padding: 4px 10px;
  background: var(--bg-input);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
  white-space: nowrap;
}
.btn-small:hover { color: var(--text); background: var(--bg-hover); border-color: var(--accent); }
.btn-undo { color: var(--warn); border-color: rgba(255,152,0,0.3); }
.btn-undo:hover { color: var(--warn); border-color: var(--warn); }

.btn-icon {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.15s;
  line-height: 1;
}
.btn-icon:hover { color: var(--text); background: var(--bg-hover); }

/* ===== Switch Toggle ===== */
.switch-label {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}
.switch-label input { display: none; }
.switch-track {
  display: inline-block;
  width: 40px;
  height: 22px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 11px;
  position: relative;
  transition: all 0.25s;
}
.switch-track::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--text-dim);
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: all 0.25s;
}
.switch-label input:checked + .switch-track {
  background: var(--accent);
  border-color: var(--accent);
}
.switch-label input:checked + .switch-track::after {
  left: 20px;
  background: #fff;
}

/* ===== Modal ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}
.modal-overlay.visible { display: flex; }
.modal {
  width: 400px;
  max-width: 90vw;
  background: var(--bg-panel-solid);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
  animation: fadeIn 0.2s ease;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 {
  font-size: 15px;
  color: var(--text-bright);
  font-weight: 600;
}
.modal-body { padding: 16px; }
.modal-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}
.modal-close {
  font-size: 16px;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   响应式 / 多端适配 (Responsive · 电脑 / 平板 / 手机)
   ============================================================ */

/* 动态视口高度，规避移动端地址栏导致的 100vh 抖动 */
#app { height: 100dvh; }
body { -webkit-tap-highlight-color: transparent; }

/* 移动端底部导航（默认隐藏，窄屏显示） */
.mobile-nav { display: none; }

/* —— 平板 (≤1024px)：收窄侧栏 —— */
@media (max-width: 1024px) {
  .control-panel { width: 320px; min-width: 320px; }
}

/* —— 手机 / 竖屏平板 (≤768px)：上下切换式布局 —— */
@media (max-width: 768px) {
  .app-header { padding: 0 12px; }
  .app-title { font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

  .main-content { flex-direction: column; position: relative; }

  .control-panel,
  .map-panel {
    width: 100% !important;
    min-width: 0 !important;
    flex: 1 1 auto;
    height: auto;
    border-right: none;
  }
  .control-panel { border-bottom: 1px solid var(--border); }

  /* 一次只显示一个视图，另一个隐藏；显示的保留自身 display */
  body.mv-panel .map-panel { display: none; }
  body.mv-map   .control-panel { display: none; }

  /* 地图工具条在窄屏允许换行，避免溢出 */
  .map-toolbar { flex-wrap: wrap; }
  .map-select { width: auto; flex: 1 1 120px; }

  /* 底部导航栏 */
  .mobile-nav {
    display: flex;
    height: 54px;
    min-height: 54px;
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-top: 1px solid var(--border);
    z-index: 200;
  }
  .mnav-btn {
    flex: 1; display: flex; align-items: center; justify-content: center; gap: 6px;
    background: none; border: none; color: var(--text-dim);
    font-size: 14px; font-weight: 600; cursor: pointer; font-family: inherit;
    transition: all 0.2s;
  }
  .mnav-btn.active { color: var(--accent); background: rgba(74,158,255,0.08); box-shadow: inset 0 2px 0 var(--accent); }

  /* 隐藏桌面状态栏，节省竖屏空间 */
  .status-bar { display: none; }

  /* 触摸友好：加大点击目标 & 防止 iOS 聚焦缩放 */
  .form-select, .form-text, .map-select { font-size: 16px; padding: 9px 12px; }
  .btn-primary, .btn-secondary { padding: 12px; font-size: 15px; }
  .btn-small { padding: 8px 12px; font-size: 13px; }
  .mode-tab { padding: 10px 12px; font-size: 14px; }
  .draw-btn { padding: 10px; font-size: 13px; }

  /* 弹窗自适应高度 */
  .modal { width: 94vw; max-width: 94vw; max-height: 88vh; display: flex; flex-direction: column; }
  .modal-body { overflow-y: auto; }
}

/* —— 超窄屏 (≤380px) 微调 —— */
@media (max-width: 380px) {
  .panel-section { padding: 12px 10px; }
}

/* ====== SEO/GEO 内容区样式（深色主题协调）====== */
.tool-content {
  max-width: 880px; margin: 0 auto; padding: 32px 24px 48px;
  color: var(--text); line-height: 1.7;
}
.tc-block { margin-bottom: 36px; }
.tc-title {
  font-size: 1.35em; color: var(--text-bright); margin-bottom: 14px;
  padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
.tool-content p { margin-bottom: 12px; color: var(--text); }
.tool-content strong { color: var(--text-bright); font-weight: 600; }
.tool-content a { color: var(--accent); text-decoration: none; }
.tool-content a:hover { text-decoration: underline; }
.tc-steps { margin: 12px 0 12px 22px; }
.tc-steps li { margin-bottom: 10px; color: var(--text); }
.tc-steps strong { color: var(--accent); }
.tc-related { list-style: none; margin-left: 0; }
.tc-related li { margin-bottom: 8px; padding-left: 18px; position: relative; color: var(--text-dim); }
.tc-related li::before { content: "→"; position: absolute; left: 0; color: var(--accent); }
.tc-related a { color: var(--text); }
.tc-related a:hover { color: var(--accent); }
.tc-faq {
  background: var(--bg-panel); border: 1px solid var(--border); border-radius: 6px;
  margin-bottom: 10px; padding: 0; overflow: hidden;
}
.tc-faq summary {
  cursor: pointer; padding: 14px 18px; color: var(--text-bright); font-weight: 500;
  list-style: none; display: flex; align-items: center;
}
.tc-faq summary::-webkit-details-marker { display: none; }
.tc-faq summary::before { content: "+"; margin-right: 10px; color: var(--accent); font-weight: 700; }
.tc-faq[open] summary::before { content: "−"; }
.tc-faq summary:hover { background: var(--bg-hover); }
.tc-faq p { padding: 0 18px 16px 32px; color: var(--text); margin: 0; }
@media (max-width: 768px) {
  .tool-content { padding: 24px 16px 36px; }
  .tc-title { font-size: 1.2em; }
}