/**
 * VS Code 风格智能文档导航栏
 * @author XBXyftx
 * @version 5.2.0
 */

/* ==================== 桌面端：标题在中央 ==================== */
.nav-breadcrumb-desktop {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 100;
  max-width: 40%;
  
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  font-size: 15px;
  font-weight: 500;
  color: var(--light-grey, #eee);
  white-space: nowrap;
  pointer-events: none;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.breadcrumb-text {
  display: flex;
  align-items: center;
  gap: 6px;
}

.bc-parent {
  opacity: 0.7;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
}

.bc-sep {
  opacity: 0.4;
}

.bc-current {
  color: #4fc1ff;
  display: flex;
  align-items: center;
  gap: 4px;
}

.bc-current svg {
  flex-shrink: 0;
}

/* ==================== 移动端：简短标题在右侧 ==================== */
.nav-breadcrumb-mobile {
  position: absolute;
  right: 65px;  /* 靠近右侧菜单按钮 */
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  max-width: calc(100% - 120px);  /* 留出Logo和菜单按钮空间 */
  
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--light-grey, #eee);
  white-space: nowrap;
  pointer-events: auto;
  text-align: right;  /* 右对齐 */
}

.mobile-breadcrumb-text {
  display: flex;
  align-items: center;
}

.mobile-current-title {
  display: flex;
  align-items: center;
  gap: 3px;
  color: #4fc1ff;
  background: rgba(79, 193, 255, 0.1);
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid rgba(79, 193, 255, 0.2);
  cursor: pointer;
  transition: background 0.2s ease;
}

.mobile-current-title:hover {
  background: rgba(79, 193, 255, 0.2);
}

.mobile-current-title svg {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
}

/* ==================== 进度条 ==================== */
.nav-progress-bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  z-index: 101;
  pointer-events: none;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #4fc1ff, #73d0ff);
  width: 0%;
  transition: width 0.1s linear;
}

/* ==================== 响应式显示控制 ==================== */
@media (min-width: 769px) {
  .nav-breadcrumb-mobile {
    display: none !important;
  }
  
  .nav-breadcrumb-desktop {
    display: block;
  }
}

@media (max-width: 768px) {
  .nav-breadcrumb-desktop {
    display: none !important;
  }
  
  .nav-breadcrumb-mobile {
    display: block;
  }
  
  .nav-progress-bar {
    bottom: 0;
  }
}

/* ==================== 桌面端响应式调整 ==================== */
@media (max-width: 1200px) {
  .nav-breadcrumb-desktop {
    font-size: 14px;
    max-width: 35%;
  }
  
  .bc-parent {
    max-width: 120px;
  }
}

@media (max-width: 900px) {
  .nav-breadcrumb-desktop {
    max-width: 30%;
  }
  
  .bc-parent {
    display: none;
  }
  
  .bc-sep {
    display: none;
  }
}

/* ==================== 主题适配 ==================== */
[data-theme="light"] .nav-breadcrumb-desktop,
html[data-theme="light"] .nav-breadcrumb-desktop {
  color: #333;
  text-shadow: none;
}

[data-theme="light"] .bc-current,
html[data-theme="light"] .bc-current {
  color: #1565c0;
}

[data-theme="light"] .nav-breadcrumb-mobile,
html[data-theme="light"] .nav-breadcrumb-mobile {
  color: #333;
}

[data-theme="light"] .mobile-current-title,
html[data-theme="light"] .mobile-current-title {
  color: #1565c0;
  background: rgba(21, 101, 192, 0.1);
  border-color: rgba(21, 101, 192, 0.2);
}

[data-theme="light"] .progress-fill,
html[data-theme="light"] .progress-fill {
  background: linear-gradient(90deg, #1565c0, #1976d2);
}

/* ==================== 打印 ==================== */
@media print {
  .nav-breadcrumb-desktop,
  .nav-breadcrumb-mobile,
  .nav-progress-bar {
    display: none !important;
  }
}