/**
 * 侧边栏样式
 */

/* 汉堡菜单按钮 */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: var(--cursor-click);
  padding: 0;
  z-index: 1000;
}

.menu-icon {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-color);
  border-radius: 1px;
  transition: all 0.3s ease;
}

/* 侧边栏样式 */
.sidebar {
  position: fixed;
  top: 0;
  right: -50vw;
  width: 50vw;
  max-width: 300px;
  height: 100vh;
  background-color: var(--background-color);
  box-shadow: -2px 0 5px rgba(0, 0, 0, 0.1);
  transition: right 0.3s ease;
  z-index: 1000;
  overflow-y: auto;
}

.sidebar.active {
  right: 0;
}

.sidebar-container {
  padding: 20px;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

/* 侧边栏日夜间模式切换按钮 */
.sidebar-theme-toggle {
  display: flex;
  justify-content: flex-start;
  margin-bottom: 10px;
}

.sidebar-theme-toggle .theme-toggle {
  width: 36px;
  height: 36px;
  font-size: 14px;
}

.sidebar-close {
  position: absolute;
  top: 15px;
  right: 20px;
  background: transparent;
  border: none;
  font-size: 24px;
  cursor: var(--cursor-click);
  color: var(--text-color);
}

.sidebar-menu {
  list-style: none;
  margin-top: 60px;
}

/* 侧边栏目录 */
.sidebar-toc {
  padding: 20px;
  border-top: var(--border-width) solid var(--light-color);
}

.sidebar-toc-title {
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 15px;
  text-align: center;
}

.sidebar-toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-toc-item {
  margin-bottom: 8px;
}

.sidebar-toc-link {
  color: var(--text-color);
  text-decoration: none;
  font-size: 14px;
  display: block;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.3s ease;
  cursor: var(--cursor-click);
}

.sidebar-toc-link:hover {
  color: var(--secondary-color);
  background-color: rgba(153, 153, 153, 0.1);
}

/* 目录层级缩进 */
.sidebar-toc-level-2 {
  padding-left: 15px;
}

.sidebar-toc-level-3 {
  padding-left: 30px;
}

.sidebar-item {
  margin-bottom: 20px;
}

.sidebar-link {
  display: block;
  padding: 10px 0;
  color: var(--text-color);
  text-decoration: none;
  font-size: 18px;
  transition: color 0.3s ease;
  cursor: var(--cursor-click);
}

.sidebar-link:hover {
  color: var(--secondary-color);
}

/* 遮罩层 */
.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 999;
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

/* 夜间模式下的汉堡菜单图标 */
body.dark-mode .menu-icon {
  background-color: var(--dark-text);
}