/* 
 * 菜单管理系统 - TG-Image
 * 现代化侧边菜单设计 - 极致美化版
 */

:root {
  --menu-width: 280px;
  --menu-collapsed-width: 70px;
  --menu-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --menu-bg: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
  --menu-border: var(--border-color);
  --menu-shadow: 0 0 40px rgba(67, 97, 238, 0.08), 0 0 20px rgba(0, 0, 0, 0.05);
  --menu-item-hover: linear-gradient(135deg, rgba(67, 97, 238, 0.08) 0%, rgba(139, 92, 246, 0.06) 100%);
  --menu-item-active: linear-gradient(135deg, rgba(67, 97, 238, 0.15) 0%, rgba(139, 92, 246, 0.12) 100%);
  --menu-icon-size: 22px;
  --menu-text-color: var(--text-color);
  --menu-text-muted: var(--text-light);
  --menu-header-height: 70px;
  --menu-footer-height: 60px;
  --menu-glow: 0 0 30px rgba(67, 97, 238, 0.15);
  --menu-backdrop-blur: blur(10px);
}

body.dark-mode {
  --menu-bg: linear-gradient(145deg, #1a1b23 0%, #242530 100%);
  --menu-border: var(--dark-border);
  --menu-shadow: 0 0 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(67, 97, 238, 0.1);
  --menu-item-hover: linear-gradient(135deg, rgba(67, 97, 238, 0.12) 0%, rgba(139, 92, 246, 0.08) 100%);
  --menu-item-active: linear-gradient(135deg, rgba(67, 97, 238, 0.25) 0%, rgba(139, 92, 246, 0.18) 100%);
  --menu-text-color: var(--dark-text);
  --menu-text-muted: var(--dark-text-light);
  --menu-glow: 0 0 30px rgba(67, 97, 238, 0.25);
}

/* 主容器布局调整 */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: padding-left var(--menu-transition);
}

.app-container.menu-expanded {
  padding-left: var(--menu-width);
}

.app-container.menu-collapsed {
  padding-left: var(--menu-collapsed-width);
}

/* 侧边菜单 */
.side-menu {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: var(--menu-width);
  background: var(--menu-bg);
  border-right: 1px solid var(--menu-border);
  box-shadow: var(--menu-shadow), inset 1px 0 0 rgba(255, 255, 255, 0.1);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  transition: width var(--menu-transition), transform var(--menu-transition);
  overflow: hidden;
  backdrop-filter: var(--menu-backdrop-blur);
}

.side-menu:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, 
    rgba(67, 97, 238, 0.02) 0%, 
    rgba(139, 92, 246, 0.01) 50%, 
    rgba(67, 97, 238, 0.02) 100%);
  pointer-events: none;
}

.side-menu.collapsed {
  width: var(--menu-collapsed-width);
}

/* 菜单头部 */
.menu-header {
  height: var(--menu-header-height);
  display: flex;
  align-items: center;
  padding: 0 25px;
  border-bottom: 1px solid var(--menu-border);
  position: relative;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.8) 0%, rgba(248, 250, 252, 0.6) 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

body.dark-mode .menu-header {
  background: linear-gradient(135deg, rgba(26, 27, 35, 0.9) 0%, rgba(36, 37, 48, 0.7) 100%);
}

.menu-logo {
  display: flex;
  align-items: center;
  gap: 15px;
  overflow: hidden;
  width: 100%;
}

.menu-logo img {
  height: 36px;
  min-width: 36px;
  object-fit: contain;
  transition: transform 0.4s ease, filter 0.3s ease;
  filter: drop-shadow(0 2px 8px rgba(67, 97, 238, 0.2));
}

.menu-logo img:hover {
  transform: scale(1.05) rotate(5deg);
  filter: drop-shadow(0 4px 12px rgba(67, 97, 238, 0.3));
}

.menu-logo h1 {
  font-size: 22px;
  font-weight: 700;
  white-space: nowrap;
  background: linear-gradient(135deg, #4361ee 0%, #8b5cf6 50%, #06ffa5 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  transition: opacity var(--menu-transition), transform var(--menu-transition);
  text-shadow: 0 2px 10px rgba(67, 97, 238, 0.2);
}

.side-menu.collapsed .menu-logo h1 {
  opacity: 0;
  transform: translateX(20px);
}

/* 菜单切换按钮 */
.menu-toggle {
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, #4361ee 0%, #8b5cf6 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3), 
              0 2px 8px rgba(0, 0, 0, 0.1),
              0 0 0 4px rgba(67, 97, 238, 0.1);
  z-index: 10;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.menu-toggle:hover {
  transform: translateY(-50%) scale(1.2);
  box-shadow: var(--menu-glow), 
              0 8px 25px rgba(0, 0, 0, 0.15),
              0 0 0 6px rgba(67, 97, 238, 0.15);
}

.menu-toggle svg {
  width: 16px;
  height: 16px;
  color: white;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.side-menu.collapsed .menu-toggle svg {
  transform: rotate(180deg);
}

/* 菜单内容 */
.menu-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 25px 0;
  background: linear-gradient(180deg, 
    rgba(255, 255, 255, 0.02) 0%, 
    rgba(248, 250, 252, 0.01) 100%);
}

body.dark-mode .menu-content {
  background: linear-gradient(180deg, 
    rgba(26, 27, 35, 0.05) 0%, 
    rgba(36, 37, 48, 0.02) 100%);
}

/* 菜单项 */
.menu-item {
  display: flex;
  align-items: center;
  padding: 16px 25px;
  color: var(--menu-text-color);
  text-decoration: none;
  position: relative;
  transition: all 0.3s ease;
  margin: 4px 12px;
  border-radius: 14px;
  overflow: hidden;
  min-height: 50px;
}

.menu-item:before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(135deg, #4361ee 0%, #8b5cf6 100%);
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.menu-item:hover {
  background: var(--menu-item-hover);
  transform: translateX(6px);
  box-shadow: 0 4px 20px rgba(67, 97, 238, 0.12), 
              0 1px 3px rgba(0, 0, 0, 0.08);
  border-left: 3px solid transparent;
}

.menu-item:hover:before {
  transform: scaleY(1);
  background: linear-gradient(135deg, #4361ee 0%, #8b5cf6 50%, #06ffa5 100%);
}

.menu-item.active {
  background: var(--menu-item-active);
  color: var(--primary-color);
  font-weight: 600;
  box-shadow: 0 6px 25px rgba(67, 97, 238, 0.18),
              0 2px 8px rgba(0, 0, 0, 0.1);
  transform: translateX(4px);
}

.menu-item.active:before {
  transform: scaleY(1);
}

.menu-item-icon {
  min-width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 20px;
  color: var(--menu-text-muted);
  transition: all 0.3s ease;
  position: relative;
  font-size: 18px;
}

.menu-item-icon:after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(67, 97, 238, 0.1) 0%, rgba(139, 92, 246, 0.08) 100%);
  border-radius: 8px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.menu-item:hover .menu-item-icon:after {
  opacity: 1;
}

.menu-item:hover .menu-item-icon {
  transform: translateX(2px) scale(1.1) rotate(5deg);
  color: var(--primary-color);
}

.menu-item.active .menu-item-icon {
  color: var(--primary-color);
  transform: scale(1.15) rotate(-5deg);
}

.menu-item-text {
  white-space: nowrap;
  transition: opacity var(--menu-transition), transform var(--menu-transition);
  font-weight: 500;
}

.side-menu.collapsed .menu-item-text {
  opacity: 0;
  transform: translateX(10px);
}

/* 菜单分类 */
.menu-category {
  padding: 0 25px;
  margin: 30px 0 15px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--menu-text-muted);
  white-space: nowrap;
  transition: opacity var(--menu-transition);
  position: relative;
  font-weight: 700;
}

.menu-category:after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 25px;
  width: 35px;
  height: 3px;
  background: linear-gradient(135deg, #4361ee 0%, #8b5cf6 50%, #06ffa5 100%);
  border-radius: 2px;
  box-shadow: 0 2px 4px rgba(67, 97, 238, 0.3);
}

.side-menu.collapsed .menu-category {
  opacity: 0;
}

/* 菜单底部 */
.menu-footer {
  height: var(--menu-footer-height);
  border-top: 1px solid var(--menu-border);
  display: flex;
  align-items: center;
  padding: 0 25px;
  color: var(--menu-text-muted);
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  transition: opacity var(--menu-transition);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.5) 0%, rgba(248, 250, 252, 0.3) 100%);
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.1);
}

body.dark-mode .menu-footer {
  background: linear-gradient(135deg, rgba(26, 27, 35, 0.7) 0%, rgba(36, 37, 48, 0.5) 100%);
}

.side-menu.collapsed .menu-footer {
  opacity: 0;
}

/* 移动端适配 */
@media (max-width: 768px) {
  .side-menu {
    transform: translateX(-100%);
    width: 320px;
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.2);
  }
  
  .side-menu.mobile-visible {
    transform: translateX(0);
  }
  
  /* 移动端时强制移除折叠状态，避免冲突 */
  .side-menu.collapsed {
    transform: translateX(-100%); /* 移动端折叠状态也是隐藏 */
    width: 320px; /* 保持移动端宽度 */
  }
  
  .side-menu.collapsed.mobile-visible {
    transform: translateX(0); /* 移动端显示时正常显示 */
  }
  
  .app-container.menu-expanded,
  .app-container.menu-collapsed {
    padding-left: 0;
  }
  
  .menu-item {
    padding: 18px 20px;
    margin: 3px 8px;
    min-height: 54px;
    border-radius: 12px;
  }
  
  .menu-item-icon {
    min-width: 26px;
    height: 26px;
    font-size: 20px;
  }
  
  .menu-item-text {
    font-size: 15px;
    font-weight: 500;
  }
  
  .menu-category {
    padding: 0 20px;
    margin: 25px 0 12px;
    font-size: 10px;
    letter-spacing: 1.8px;
  }
  
  .menu-header {
    padding: 0 20px;
    height: 75px;
  }
  
  .menu-footer {
    padding: 0 20px;
    height: 65px;
  }
  
  .menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
  
  .menu-overlay.active {
    opacity: 1;
    visibility: visible;
  }
}

/* 桌面端确保折叠状态正常 */
@media (min-width: 769px) {
  .side-menu {
    transform: translateX(0) !important; /* 桌面端始终可见 */
  }
  
  .side-menu.collapsed {
    width: var(--menu-collapsed-width);
    transform: translateX(0) !important; /* 确保折叠时仍然可见 */
  }
}

/* 平板端适配 */
@media (min-width: 769px) and (max-width: 1024px) {
  :root {
    --menu-width: 260px;
    --menu-collapsed-width: 65px;
  }
  
  .menu-item {
    padding: 15px 22px;
    margin: 5px 10px;
  }
  
  .menu-item-icon {
    min-width: 23px;
    height: 23px;
    margin-right: 18px;
  }
  
  .menu-category {
    font-size: 11px;
    letter-spacing: 1.8px;
  }
}

/* 菜单项徽章 */
.menu-badge {
  min-width: 24px;
  height: 24px;
  border-radius: 12px;
  background: linear-gradient(135deg, #4361ee 0%, #8b5cf6 50%, #06ffa5 100%);
  color: white;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
  padding: 0 8px;
  transition: all var(--menu-transition);
  box-shadow: 0 3px 12px rgba(67, 97, 238, 0.4),
              0 1px 3px rgba(0, 0, 0, 0.1);
  animation: gentlePulse 3s ease-in-out infinite;
}

@keyframes gentlePulse {
  0%, 100% { 
    transform: scale(1);
    box-shadow: 0 3px 12px rgba(67, 97, 238, 0.4);
  }
  50% { 
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(67, 97, 238, 0.6);
  }
}

.side-menu.collapsed .menu-badge {
  opacity: 0;
  transform: scale(0);
}

/* 菜单提示 */
.menu-tooltip {
  position: absolute;
  left: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background: linear-gradient(135deg, #1a1b23 0%, #242530 100%);
  color: white;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3), 
              0 0 20px rgba(67, 97, 238, 0.15),
              0 4px 12px rgba(0, 0, 0, 0.2);
  pointer-events: none;
  z-index: 1001;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.menu-tooltip:after {
  content: '';
  position: absolute;
  right: 100%;
  top: 50%;
  transform: translateY(-50%);
  border: 8px solid transparent;
  border-right-color: #1a1b23;
}

.side-menu.collapsed .menu-item:hover .menu-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateY(-50%) translateX(8px);
}

/* 折叠状态下的提示框特殊样式 */
.side-menu.collapsed .menu-tooltip {
  left: calc(100% + 15px);
}

/* 滚动条美化增强 */
.menu-content::-webkit-scrollbar {
  width: 6px;
}

.menu-content::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 3px;
}

.menu-content::-webkit-scrollbar-thumb {
  background: linear-gradient(135deg, #4361ee 0%, #8b5cf6 50%, #06ffa5 100%);
  border-radius: 3px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(67, 97, 238, 0.3);
}

.menu-content::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, #3651d4 0%, #7c3aed 50%, #059669 100%);
  box-shadow: 0 3px 6px rgba(67, 97, 238, 0.4);
}

/* Firefox 滚动条样式 */
.menu-content {
  scrollbar-width: thin;
  scrollbar-color: #4361ee transparent;
}

/* 菜单过渡动画优化 */
.side-menu * {
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* 为折叠状态添加特殊样式 */
.side-menu.collapsed .menu-content {
  padding: 20px 0;
}

.side-menu.collapsed .menu-item {
  margin: 6px 8px;
  padding: 14px 0;
  justify-content: center;
  min-height: 48px;
  position: relative;
}

/* 折叠状态下完全隐藏文字和徽章 */
.side-menu.collapsed .menu-item-text {
  display: none !important;
}

.side-menu.collapsed .menu-badge {
  display: none !important;
}

/* 折叠状态下的图标样式优化 */
.side-menu.collapsed .menu-item-icon {
  margin-right: 0 !important;
  margin-left: 0 !important;
  transform: none;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 折叠状态下悬停效果调整 */
.side-menu.collapsed .menu-item:hover {
  transform: translateX(0);
  box-shadow: 0 4px 20px rgba(67, 97, 238, 0.12), 
              0 1px 3px rgba(0, 0, 0, 0.08);
}

.side-menu.collapsed .menu-item:hover .menu-item-icon {
  transform: scale(1.2) rotate(8deg);
  color: var(--primary-color);
}

.side-menu.collapsed .menu-item.active .menu-item-icon {
  transform: scale(1.25) rotate(-8deg);
  color: var(--primary-color);
}

/* 折叠状态下的激活状态样式 */
.side-menu.collapsed .menu-item.active {
  transform: translateX(0);
}

/* 确保折叠状态下左边框正常显示 */
.side-menu.collapsed .menu-item:before {
  left: 0;
  width: 3px;
}