:root {
  --color-primary: #3b82f6;
  --color-primary-hover: #2563eb;
  --color-primary-active: #1d4ed8;
  --color-primary-light: #dbeafe;
  --color-primary-dark: #1e40af;

  --color-secondary: #64748b;
  --color-secondary-hover: #475569;
  --color-secondary-light: #f1f5f9;

  --color-success: #10b981;
  --color-success-light: #d1fae5;
  --color-warning: #f59e0b;
  --color-warning-light: #fef3c7;
  --color-error: #ef4444;
  --color-error-light: #fee2e2;
  --color-info: #3b82f6;
  --color-info-light: #dbeafe;

  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  --bg-primary: var(--color-white);
  --bg-secondary: var(--color-gray-50);
  --bg-tertiary: var(--color-gray-100);
  --bg-overlay: rgba(0, 0, 0, 0.5);

  --text-primary: var(--color-gray-900);
  --text-secondary: var(--color-gray-600);
  --text-tertiary: var(--color-gray-500);
  --text-inverse: var(--color-white);
  --text-link: var(--color-primary);

  --border-primary: var(--color-gray-200);
  --border-secondary: var(--color-gray-300);
  --border-focus: var(--color-primary);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-2xl: 16px;
  --radius-full: 9999px;

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;
  --spacing-3xl: 48px;

  --font-size-xs: 12px;
  --font-size-sm: 13px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
  --transition-slow: 300ms ease;

  --header-height: 56px;
  --sidebar-width: 260px;
  --sidebar-collapsed-width: 64px;
}

[data-theme="dark"] {
  --bg-primary: var(--color-gray-900);
  --bg-secondary: var(--color-gray-800);
  --bg-tertiary: var(--color-gray-700);

  --text-primary: #F5E6CA;            /* 暖白色高对比文字（替代#f3f4f6过冷） */
  --text-secondary: #E8C9A0;          /* 暖色次要文字（替代#9ca3af过暗） */
  --text-tertiary: #C9A878;           /* 暖色三级文字（替代#6b7280过暗） */

  --border-primary: #6B5A45;          /* 暖棕色边框（替代#374151过暗，提高可见度） */
  --border-secondary: #8B7355;        /* 暖棕色次级边框（替代#4b5563过暗） */
}

/* ========== 马克龙配色方案（默认） ========== */
[data-theme="macaron"] {
  --color-primary: #F5B7C9;            /* 柔粉 */
  --color-primary-hover: #F0A0BC;
  --color-primary-active: #E88AA8;
  --color-primary-light: #FDEEF3;
  --color-primary-dark: #D87596;

  --bg-primary: #FFFBF7;              /* 暖米白 */
  --bg-secondary: #FFF5EE;
  --bg-tertiary: #FFEEDD;

  --text-primary: #5C4A52;            /* 暖灰文字 */
  --text-secondary: #8A7A82;
  --text-tertiary: #B0A0A8;

  --border-primary: #F5D8DE;
  --border-secondary: #F0C8D0;
  --border-focus: #F5B7C9;
}

/* ========== 莫兰蒂配色方案 ========== */
[data-theme="morandi"] {
  --color-primary: #A8B8C8;            /* 灰蓝 */
  --color-primary-hover: #94A4B4;
  --color-primary-active: #8090A0;
  --color-primary-light: #E0E6EC;
  --color-primary-dark: #6B7B8B;

  --bg-primary: #F4F2EE;              /* 灰白米色 */
  --bg-secondary: #EAE6E0;
  --bg-tertiary: #DFDAD2;

  --text-primary: #4A4A4A;            /* 中性灰文字 */
  --text-secondary: #6B6B6B;
  --text-tertiary: #8E8E8E;

  --border-primary: #C8C4BC;
  --border-secondary: #B0ACA4;
  --border-focus: #A8B8C8;
}

/* ========== 马卡龙系列 · 薄荷绿 ========== */
[data-theme="mint"] {
  --color-primary: #7FC8A9;
  --color-primary-hover: #6BB896;
  --color-primary-active: #58A884;
  --color-primary-light: #E8F7F0;
  --color-primary-dark: #3E8F6E;

  --bg-primary: #FAFDFB;
  --bg-secondary: #F2FAF6;
  --bg-tertiary: #E4F4EC;

  --text-primary: #3E5C4E;
  --text-secondary: #6E8A7C;
  --text-tertiary: #9BB5A9;

  --border-primary: #CBE7DA;
  --border-secondary: #B3D9C8;
  --border-focus: #7FC8A9;
}

/* ========== 马卡龙系列 · 薰衣草紫 ========== */
[data-theme="lavender"] {
  --color-primary: #B39DDB;
  --color-primary-hover: #A48CD2;
  --color-primary-active: #937BC6;
  --color-primary-light: #F0EBFA;
  --color-primary-dark: #7C62B8;

  --bg-primary: #FDFCFF;
  --bg-secondary: #F6F3FC;
  --bg-tertiary: #EDE8F8;

  --text-primary: #4E4463;
  --text-secondary: #7C7393;
  --text-tertiary: #A8A0BC;

  --border-primary: #DCD3EE;
  --border-secondary: #C9BCE2;
  --border-focus: #B39DDB;
}

/* ========== 马卡龙系列 · 天空蓝 ========== */
[data-theme="sky"] {
  --color-primary: #90CAF9;
  --color-primary-hover: #7CBDF3;
  --color-primary-active: #66AFEC;
  --color-primary-light: #EAF4FE;
  --color-primary-dark: #4A8FD6;

  --bg-primary: #FBFDFF;
  --bg-secondary: #F1F8FE;
  --bg-tertiary: #E3F0FB;

  --text-primary: #3E5570;
  --text-secondary: #6E87A0;
  --text-tertiary: #9DB2C6;

  --border-primary: #C9E2F7;
  --border-secondary: #AED2EF;
  --border-focus: #90CAF9;
}

/* ========== 马卡龙系列 · 柠檬黄 ========== */
[data-theme="lemon"] {
  --color-primary: #F2C94C;
  --color-primary-hover: #E8BC38;
  --color-primary-active: #DDAE28;
  --color-primary-light: #FEF8E3;
  --color-primary-dark: #C29A1E;

  --bg-primary: #FFFEF8;
  --bg-secondary: #FEF9E9;
  --bg-tertiary: #FCF3D3;

  --text-primary: #6B5B26;
  --text-secondary: #93865A;
  --text-tertiary: #B8AC85;

  --border-primary: #F0E4B8;
  --border-secondary: #E5D599;
  --border-focus: #F2C94C;
}

/* ========== 马卡龙系列 · 蜜桃橙 ========== */
[data-theme="peach"] {
  --color-primary: #FFB088;
  --color-primary-hover: #FFA070;
  --color-primary-active: #F98E58;
  --color-primary-light: #FFF0E8;
  --color-primary-dark: #E0723C;

  --bg-primary: #FFFDFB;
  --bg-secondary: #FFF5EF;
  --bg-tertiary: #FFEBDD;

  --text-primary: #6B4A3A;
  --text-secondary: #95755F;
  --text-tertiary: #BCA08A;

  --border-primary: #F8D9C4;
  --border-secondary: #EFC4A9;
  --border-focus: #FFB088;
}

/* ========== 莫兰迪系列 · 莫兰迪绿 ========== */
[data-theme="morandi-green"] {
  --color-primary: #93A88F;
  --color-primary-hover: #82967E;
  --color-primary-active: #71856D;
  --color-primary-light: #E3E9E1;
  --color-primary-dark: #5C7058;

  --bg-primary: #F4F5F2;
  --bg-secondary: #EAECE7;
  --bg-tertiary: #DEE2DA;

  --text-primary: #434A40;
  --text-secondary: #666E63;
  --text-tertiary: #8B9388;

  --border-primary: #C6CCBF;
  --border-secondary: #AFB7A9;
  --border-focus: #93A88F;
}

/* ========== 莫兰迪系列 · 莫兰迪粉 ========== */
[data-theme="morandi-pink"] {
  --color-primary: #C8A9A5;
  --color-primary-hover: #BB9A96;
  --color-primary-active: #AD8A86;
  --color-primary-light: #F1E8E6;
  --color-primary-dark: #936E6A;

  --bg-primary: #F7F4F3;
  --bg-secondary: #F0EBE9;
  --bg-tertiary: #E7E0DD;

  --text-primary: #574846;
  --text-secondary: #7D6C69;
  --text-tertiary: #A39390;

  --border-primary: #D9CCC9;
  --border-secondary: #C9B8B4;
  --border-focus: #C8A9A5;
}

/* ========== 奶油系列 · 香草奶油 ========== */
[data-theme="cream-vanilla"] {
  --color-primary: #D9A066;
  --color-primary-hover: #CE9256;
  --color-primary-active: #C18448;
  --color-primary-light: #F8EDE0;
  --color-primary-dark: #A36E38;

  --bg-primary: #FFFCF7;
  --bg-secondary: #FAF3E9;
  --bg-tertiary: #F3E7D6;

  --text-primary: #5C4631;
  --text-secondary: #87705A;
  --text-tertiary: #AD9984;

  --border-primary: #EDDCC6;
  --border-secondary: #E0C8A9;
  --border-focus: #D9A066;
}

/* ========== 奶油系列 · 焦糖奶油 ========== */
[data-theme="cream-caramel"] {
  --color-primary: #B07A4F;
  --color-primary-hover: #A26C43;
  --color-primary-active: #935E38;
  --color-primary-light: #F3E7DC;
  --color-primary-dark: #7C4E2C;

  --bg-primary: #FDFAF6;
  --bg-secondary: #F8F1E8;
  --bg-tertiary: #F0E5D6;

  --text-primary: #55402F;
  --text-secondary: #7E6A58;
  --text-tertiary: #A69280;

  --border-primary: #E5D2BC;
  --border-secondary: #D6BC9F;
  --border-focus: #B07A4F;
}

/* ========== 奶油系列 · 拿铁奶油 ========== */
[data-theme="cream-latte"] {
  --color-primary: #A88A70;
  --color-primary-hover: #9A7C62;
  --color-primary-active: #8B6D54;
  --color-primary-light: #F1EAE3;
  --color-primary-dark: #6F5540;

  --bg-primary: #FCFAF7;
  --bg-secondary: #F5F0E9;
  --bg-tertiary: #ECE4D9;

  --text-primary: #4E4034;
  --text-secondary: #786A5D;
  --text-tertiary: #A08F80;

  --border-primary: #E0D4C5;
  --border-secondary: #CFBFA9;
  --border-focus: #A88A70;
}

/* ========== 冰淇淋系列 · 草莓冰淇淋 ========== */
[data-theme="ice-strawberry"] {
  --color-primary: #F8A5B8;
  --color-primary-hover: #F493A9;
  --color-primary-active: #EE8098;
  --color-primary-light: #FEF0F3;
  --color-primary-dark: #D0617B;

  --bg-primary: #FFFDFD;
  --bg-secondary: #FDF2F4;
  --bg-tertiary: #FBE8EC;

  --text-primary: #6B3E48;
  --text-secondary: #96707A;
  --text-tertiary: #BBA0A6;

  --border-primary: #F6D2D9;
  --border-secondary: #EBBBC5;
  --border-focus: #F8A5B8;
}

/* ========== 冰淇淋系列 · 蓝莓冰淇淋 ========== */
[data-theme="ice-blueberry"] {
  --color-primary: #9DB8E8;
  --color-primary-hover: #8CA9DF;
  --color-primary-active: #7B99D6;
  --color-primary-light: #EBF1FB;
  --color-primary-dark: #5D7DBF;

  --bg-primary: #FBFDFF;
  --bg-secondary: #F0F5FD;
  --bg-tertiary: #E4ECFA;

  --text-primary: #3D4A6B;
  --text-secondary: #6C7B9E;
  --text-tertiary: #9DAAC4;

  --border-primary: #CBD9F2;
  --border-secondary: #B2C5E8;
  --border-focus: #9DB8E8;
}

/* ========== 冰淇淋系列 · 抹茶冰淇淋 ========== */
[data-theme="ice-matcha"] {
  --color-primary: #A8C6A0;
  --color-primary-hover: #97B98E;
  --color-primary-active: #86AC7D;
  --color-primary-light: #EDF5EB;
  --color-primary-dark: #63905A;

  --bg-primary: #FBFDFA;
  --bg-secondary: #F2F8F0;
  --bg-tertiary: #E7F1E4;

  --text-primary: #43573F;
  --text-secondary: #71826D;
  --text-tertiary: #9CAB98;

  --border-primary: #CFE2CB;
  --border-secondary: #B7D2B2;
  --border-focus: #A8C6A0;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--text-link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

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

.btn-secondary {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  border-color: var(--border-primary);
}

.btn-secondary:hover {
  background-color: var(--bg-tertiary);
}

.btn-danger {
  background-color: var(--color-error);
  color: var(--color-white);
  border-color: var(--color-error);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-round {
  border-radius: var(--radius-full);
}

.input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-md);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
  outline: none;
}

.input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-white);
  background-color: var(--color-error);
  border-radius: var(--radius-full);
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
  background-color: var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-semibold);
  color: var(--color-gray-600);
}

.avatar-sm { width: 32px; height: 32px; font-size: var(--font-size-sm); }
.avatar-lg { width: 48px; height: 48px; font-size: var(--font-size-lg); }
.avatar-xl { width: 64px; height: 64px; font-size: var(--font-size-2xl); }

.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-gray-800);
  color: var(--color-white);
  border-radius: var(--radius-md);
  font-size: var(--font-size-md);
  z-index: 9999;
  animation: fadeInDown 0.3s ease;
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateX(-50%) translateY(-10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.loading-spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl);
  color: var(--text-tertiary);
  text-align: center;
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--spacing-lg);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-sm);
}

.empty-state-desc {
  font-size: var(--font-size-sm);
}

/* ============================================================
   全局弹窗规则 (FMFU Global Popup Rules)
   规则1: 所有弹窗必须有关闭按钮
   规则2: 弹窗宽度和边界不超过窗口边界
   规则3: 弹窗弹出后在页面最高一层
   规则4: 独立弹窗和浮动图标按钮支持拖拽
   ============================================================ */

/* 全局弹窗 z-index 层级体系 */
:root {
  --z-overlay: 10000;      /* 全屏遮罩层 */
  --z-modal: 10001;        /* 模态框 */
  --z-panel: 10002;        /* 浮动面板 */
  --z-bubble: 10003;       /* 气泡弹窗 */
  --z-toast: 99999;        /* 提示信息（最高） */
}

/* 全局弹窗宽度约束：不超过窗口边界 */
.modal-overlay,
.modal-card,
[class*="modal"]:not([class*="modal-body"]):not([class*="modal-title"]):not([class*="modal-close"]):not([class*="modal-actions"]),
[class*="popup"]:not([class*="popup-content"]),
[class*="panel"][class*="float"],
.share-modal,
.add-modal,
.location-permission-modal,
.addr-edit-modal,
.arp-history-modal,
.guest-login-prompt,
.stranger-public-info,
.avatar-panel,
.city-weather-panel,
.map-mode-bubble,
.favorite-panel,
.social-panel,
.map-share-panel,
.user-bubble,
.chat-float-window {
  max-width: 90vw !important;
  max-height: 90vh !important;
  box-sizing: border-box;
}

/* 模态框遮罩：全屏覆盖 + 最高层 */
.modal-overlay,
[class*="-overlay"][class*="show"],
.pw-overlay.show,
.scan-overlay {
  z-index: var(--z-overlay) !important;
}

/* 模态框卡片：居中显示 */
.modal-card,
[class*="modal-card"],
.share-modal,
.add-modal {
  z-index: var(--z-modal) !important;
}

/* 浮动面板：最高层，避免被遮挡 */
.avatar-panel,
.city-weather-panel,
.map-mode-bubble,
.favorite-panel,
.social-panel,
.map-share-panel,
.toolbox-menu,
.route-panel,
.chat-float-window,
.stranger-public-info,
.location-permission-modal,
.guest-login-prompt,
.addr-edit-modal,
.arp-history-modal,
.user-bubble {
  z-index: var(--z-panel) !important;
}

/* 全局关闭按钮样式 */
.fmfu-close-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  border: none;
  background: rgba(0, 0, 0, 0.05);
  color: var(--text-secondary);
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--transition-fast);
  user-select: none;
}
.fmfu-close-btn:hover {
  background: rgba(0, 0, 0, 0.12);
  color: var(--text-primary);
  transform: rotate(90deg);
}

/* 全局拖拽手柄样式 */
.fmfu-drag-handle {
  cursor: move;
  user-select: none;
  -webkit-user-select: none;
}
.fmfu-drag-handle:active {
  cursor: grabbing;
}

/* 拖拽中的弹窗 */
.fmfu-dragging {
  opacity: 0.9;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25) !important;
}

/* 弹窗头部（可拖拽区域） */
.modal-title,
.bubble-header,
[class*="-header"]:not([class*="sidebar-header"]):not([class*="topbar"]),
.avatar-panel-header,
.share-modal-header,
.add-modal-header {
  cursor: move;
  user-select: none;
}

/* 移动端弹窗宽度约束 */
@media screen and (max-width: 768px) {
  .modal-card,
  [class*="modal-card"],
  .share-modal,
  .add-modal {
    width: 95vw !important;
    max-width: 95vw !important;
  }
  /* 移动端禁用拖拽 */
  .fmfu-drag-handle,
  .modal-title,
  .bubble-header,
  [class*="-header"]:not([class*="sidebar-header"]):not([class*="topbar"]) {
    cursor: default;
  }
}

/* ============================================================
   文字提示/消息弹窗尺寸约束
   规则: 避免过窄超高满屏，避免超宽外溢
   ============================================================ */

/* Toast 提示：最小宽度避免过窄，最大高度避免满屏 */
.toast,
.location-toast,
[class*="toast"]:not([class*="toast-container"]) {
  min-width: 200px !important;
  max-width: 90vw !important;
  max-height: 70vh !important;
  overflow-y: auto !important;
  white-space: normal !important;
  word-break: break-word !important;
}

/* 简单文字消息弹窗：最小宽度 + 最大高度，避免过窄超高 */
.alert,
[class*="alert"]:not([class*="alert-icon"]):not([class*="alert-title"]):not([class*="alert-content"]),
[class*="message-box"],
[class*="notice-popup"],
[class*="tip-popup"] {
  min-width: 240px !important;
  max-width: 90vw !important;
  max-height: 80vh !important;
  overflow-y: auto !important;
  box-sizing: border-box !important;
}

/* 模态卡片最小宽度（避免确认对话框过窄） */
.modal-card,
[class*="modal-card"] {
  min-width: 320px !important;
}

/* 文字输入框/文本域不超出弹窗边界 */
.modal-card input,
.modal-card textarea,
.modal-card select,
[class*="modal"] input,
[class*="modal"] textarea,
[class*="modal"] select,
[class*="panel"] input,
[class*="panel"] textarea {
  max-width: 100% !important;
  box-sizing: border-box !important;
}