/* ==========================================================================
   CAAC地面站题库系统 - 统一白色容器主题样式
   ========================================================================== */

/* 白色主题变量覆盖 */
:root {
  /* 白色容器主题颜色 */
  --white-container-bg: #ffffff;
  --white-container-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --white-container-border: 1px solid rgba(0, 0, 0, 0.06);
  --white-container-radius: 16px;
  
  /* 白色按钮主题 */
  --white-btn-bg: #ffffff;
  --white-btn-color: #333333;
  --white-btn-border: 1px solid rgba(0, 0, 0, 0.12);
  --white-btn-hover-bg: #f8f9fa;
  --white-btn-hover-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --white-btn-active-bg: #f0f0f0;
  
  /* 背景壁纸保持透明 */
  --wallpaper-overlay: rgba(255, 255, 255, 0.02);
}

/* 通用白色容器样式 */
.white-container {
  background: var(--white-container-bg);
  border-radius: var(--white-container-radius);
  box-shadow: var(--white-container-shadow);
  border: var(--white-container-border);
  padding: 24px;
  margin: 16px 0;
  backdrop-filter: blur(10px);
  position: relative;
  z-index: 1;
}

.white-container-sm {
  padding: 16px;
  border-radius: 12px;
}

.white-container-lg {
  padding: 32px;
  border-radius: 20px;
}

/* 白色按钮样式 */
.white-btn, 
.btn-white,
button.white-btn,
a.white-btn,
input[type="submit"].white-btn {
  background: var(--white-btn-bg);
  color: var(--white-btn-color);
  border: var(--white-btn-border);
  border-radius: 8px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.white-btn:hover,
.btn-white:hover {
  background: var(--white-btn-hover-bg);
  box-shadow: var(--white-btn-hover-shadow);
  transform: translateY(-1px);
}

.white-btn:active,
.btn-white:active {
  background: var(--white-btn-active-bg);
  transform: translateY(0);
}

/* 按钮尺寸变体 */
.white-btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 6px;
}

.white-btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  border-radius: 10px;
}

/* 按钮图标样式 */
.white-btn i {
  font-size: 0.9em;
}

/* 主要内容区域白色容器 - 排除题库大厅页面 */
.main-content:not(.dashboard-main-content) {
  background: var(--white-container-bg);
  border-radius: var(--white-container-radius);
  box-shadow: var(--white-container-shadow);
  border: var(--white-container-border);
  margin: 20px auto;
  max-width: 1200px;
  min-height: calc(100vh - 200px);
  backdrop-filter: blur(10px);
}

/* 欢迎页面沉浸式样式 - 无背景框 */
.welcome-container .welcome-content {
  background: transparent; /* 移除白色背景 */
  border-radius: 0; /* 移除圆角 */
  box-shadow: none; /* 移除阴影 */
  border: none; /* 移除边框 */
  padding: 48px;
  backdrop-filter: none; /* 移除毛玻璃效果 */
  max-width: 800px;
  margin: 0 auto;
}

/* 题库大厅白色容器 - 优化后的统一样式 */
.dashboard-page .dashboard-sheet {
  background: var(--white-container-bg) !important;
  border-radius: var(--white-container-radius) !important;
  box-shadow: var(--white-container-shadow) !important;
  border: var(--white-container-border) !important;
  padding: 24px !important;
  backdrop-filter: blur(15px);
  /* 确保这是唯一的背景层 */
  position: relative;
  z-index: 2;
}

/* 强制确保dashboard页面的main-content背景透明 */
.dashboard-page .main-content,
.dashboard-page .dashboard-main-content {
  background: transparent !important;
  background-color: transparent !important;
  background-image: none !important;
  box-shadow: none !important;
  border: none !important;
  backdrop-filter: none !important;
}

/* 题库卡片白色样式 */
.bank-card {
  background: var(--white-container-bg) !important;
  border: var(--white-container-border) !important;
  border-radius: 12px !important;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06) !important;
  transition: all 0.2s ease !important;
}

.bank-card:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1) !important;
  transform: translateY(-2px) !important;
}

/* 模态框白色容器 */
.modal-content {
  background: var(--white-container-bg) !important;
  border-radius: var(--white-container-radius) !important;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15) !important;
  border: var(--white-container-border) !important;
  backdrop-filter: blur(10px);
}

/* 表单白色容器 */
.form-container,
.login-container,
.register-container {
  background: var(--white-container-bg) !important;
  border-radius: var(--white-container-radius) !important;
  box-shadow: var(--white-container-shadow) !important;
  border: var(--white-container-border) !important;
  padding: 32px !important;
  backdrop-filter: blur(10px);
}

/* 题目答题区域白色容器 */
.question-container,
.question-content,
.question-card {
  background: var(--white-container-bg) !important;
  border-radius: var(--white-container-radius) !important;
  box-shadow: var(--white-container-shadow) !important;
  border: var(--white-container-border) !important;
  padding: 24px !important;
  backdrop-filter: blur(10px);
}

/* 侧边栏白色容器 */
.sidebar,
.side-panel {
  background: var(--white-container-bg) !important;
  border-radius: var(--white-container-radius) !important;
  box-shadow: var(--white-container-shadow) !important;
  border: var(--white-container-border) !important;
  backdrop-filter: blur(10px);
}

/* 管理页面白色容器 */
.admin-container,
.admin-content,
.admin-panel {
  background: var(--white-container-bg) !important;
  border-radius: var(--white-container-radius) !important;
  box-shadow: var(--white-container-shadow) !important;
  border: var(--white-container-border) !important;
  padding: 24px !important;
  backdrop-filter: blur(10px);
}

/* 数据表格白色容器 */
.table-container {
  background: var(--white-container-bg) !important;
  border-radius: 12px !important;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06) !important;
  border: var(--white-container-border) !important;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.table-container table {
  background: transparent !important;
}

.table-container th {
  background: #f8f9fa !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06) !important;
}

/* 统计卡片白色样式 */
.stat-card,
.stats-card,
.metric-card {
  background: var(--white-container-bg) !important;
  border-radius: 12px !important;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06) !important;
  border: var(--white-container-border) !important;
  padding: 20px !important;
  backdrop-filter: blur(10px);
}

/* 通知消息白色样式 */
.notification,
.alert,
.message {
  background: var(--white-container-bg) !important;
  border-radius: 8px !important;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06) !important;
  border: var(--white-container-border) !important;
  backdrop-filter: blur(10px);
}

/* 导航栏白色样式 - 简化毛玻璃效果 */
.navbar,
.nav-container {
  background: #ffffff !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08) !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06) !important;
}

/* 页脚白色样式 - 简化毛玻璃效果 */
.footer {
  background: #ffffff !important;
  border-top: 1px solid rgba(0, 0, 0, 0.08) !important;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.06) !important;
}

/* 搜索框白色样式 */
.search-container,
.search-box {
  background: var(--white-container-bg) !important;
  border-radius: 25px !important;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06) !important;
  border: var(--white-container-border) !important;
  backdrop-filter: blur(10px);
}

/* 分页器白色样式 */
.pagination {
  background: var(--white-container-bg) !important;
  border-radius: 8px !important;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06) !important;
  border: var(--white-container-border) !important;
  padding: 8px !important;
  backdrop-filter: blur(10px);
}

.pagination button,
.pagination a {
  background: transparent !important;
  color: var(--white-btn-color) !important;
  border: none !important;
  border-radius: 6px !important;
  padding: 8px 12px !important;
  margin: 0 2px !important;
  transition: all 0.2s ease !important;
}

.pagination button:hover,
.pagination a:hover {
  background: var(--white-btn-hover-bg) !important;
}

.pagination button.active,
.pagination a.active {
  background: var(--primary-color) !important;
  color: white !important;
}

/* 标签页白色样式 */
.tab-container {
  background: var(--white-container-bg) !important;
  border-radius: var(--white-container-radius) !important;
  box-shadow: var(--white-container-shadow) !important;
  border: var(--white-container-border) !important;
  backdrop-filter: blur(10px);
}

.tab-nav {
  background: #f8f9fa !important;
  border-radius: var(--white-container-radius) var(--white-container-radius) 0 0 !important;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06) !important;
}

.tab-nav button {
  background: transparent !important;
  color: var(--white-btn-color) !important;
  border: none !important;
  padding: 12px 20px !important;
  border-radius: 8px 8px 0 0 !important;
  transition: all 0.2s ease !important;
}

.tab-nav button:hover {
  background: rgba(0, 0, 0, 0.05) !important;
}

.tab-nav button.active {
  background: var(--white-container-bg) !important;
  border-bottom: 2px solid var(--primary-color) !important;
}

/* 确保背景壁纸正常显示 */
.wallpaper-background {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  z-index: -1 !important;
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
}

/* 确保粒子效果正常显示 */
.particles-container {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  z-index: -1 !important;
  pointer-events: none !important;
}

/* 页面主体确保背景透明 */
body {
  background: transparent !important;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .white-container {
    margin: 8px;
    padding: 16px;
    border-radius: 12px;
  }
  
  .white-container-lg {
    padding: 20px;
    border-radius: 16px;
  }
  
  .main-content:not(.dashboard-main-content) {
    margin: 10px;
    border-radius: 12px;
  }
  
  .welcome-container .welcome-content {
    padding: 32px 24px;
    margin: 0 10px;
    border-radius: 0; /* 移动端也保持无背景框 */
  }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
  :root {
    --white-container-border: 2px solid rgba(0, 0, 0, 0.2);
    --white-btn-border: 2px solid rgba(0, 0, 0, 0.3);
  }
}

/* 深色模式适配（可选） */
@media (prefers-color-scheme: dark) {
  .force-light-theme {
    /* 强制保持白色主题，即使在深色模式下 */
    --white-container-bg: #ffffff;
    --white-btn-color: #333333;
  }
}