/**
 * 懒人导航 - 主题开发文档样式
 * 技术文档风格，支持侧边栏导航、代码高亮、响应式
 */

/* ===== 基础重置与变量 ===== */
:root {
  --primary: #667eea;
  --primary-dark: #764ba2;
  --bg: #f8f9fa;
  --card-bg: #fff;
  --text: #2d3748;
  --text-secondary: #718096;
  --border: #e2e8f0;
  --code-bg: #f6f8fa;
  --code-border: #e1e4e8;
  --sidebar-bg: #f7fafc;
  --sidebar-active: #edf2f7;
  --success: #48bb78;
  --warning: #ed8936;
  --danger: #f56565;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--text);
  line-height: 1.7;
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover { color: var(--primary-dark); }

/* ===== 布局结构 ===== */
.doc-layout {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.doc-sidebar {
  width: 280px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  padding: 24px 0;
}

.sidebar-header {
  padding: 0 20px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.sidebar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-title .logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
}

.sidebar-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* 导航菜单 */
.nav-menu {
  list-style: none;
  padding: 0 12px;
}

.nav-item {
  margin: 2px 0;
}

.nav-link {
  display: block;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
  transition: all 0.2s;
  cursor: pointer;
}

.nav-link:hover {
  background: var(--sidebar-active);
  color: var(--primary);
}

.nav-link.active {
  background: var(--primary);
  color: #fff;
  font-weight: 500;
}

.nav-link.sub {
  padding-left: 28px;
  font-size: 13px;
  color: var(--text-secondary);
}

.nav-link.sub.active {
  color: #fff;
}

.nav-divider {
  height: 1px;
  background: var(--border);
  margin: 12px 16px;
}

/* 主内容区 */
.doc-main {
  margin-left: 280px;
  flex: 1;
  min-width: 0;
}

.doc-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 48px;
}

/* ===== 内容样式 ===== */
.doc-content h1 {
  font-size: 32px;
  font-weight: 700;
  margin: 48px 0 24px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--primary);
  color: var(--text);
}

.doc-content h1:first-child {
  margin-top: 0;
}

/* 章节分享按钮 */
.share-anchor {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  margin-left: 8px;
  padding: 0;
  font-size: 14px;
  line-height: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  opacity: 0.5;
  transition: all 0.2s;
  vertical-align: middle;
}

.share-anchor:hover {
  opacity: 1;
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.share-anchor.copied {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
  opacity: 1;
}

.doc-content h2 {
  font-size: 24px;
  font-weight: 600;
  margin: 40px 0 20px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.doc-content h2::before {
  content: '';
  width: 4px;
  height: 24px;
  background: linear-gradient(180deg, var(--primary), var(--primary-dark));
  border-radius: 2px;
  flex-shrink: 0;
}

.doc-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 16px;
  color: var(--text);
  padding-left: 12px;
  border-left: 3px solid var(--primary);
}

.doc-content h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 24px 0 12px;
  color: var(--text-secondary);
}

/* 段落和文字 */
.doc-content p {
  margin: 14px 0;
  color: var(--text);
  line-height: 1.8;
}

.doc-content strong {
  font-weight: 600;
  color: var(--text);
}

.doc-content code {
  font-family: var(--font-mono);
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: #c53030;
  border: 1px solid var(--code-border);
}

/* 代码块 */
.doc-content pre {
  background: #1e293b;
  color: #e2e8f0;
  padding: 16px 20px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 16px 0;
  font-size: 14px;
  line-height: 1.6;
  position: relative;
}

.doc-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font-size: inherit;
  font-family: var(--font-mono);
}

/* 表格 */
.doc-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 14px;
}

.doc-content thead {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
}

.doc-content th,
.doc-content td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.doc-content th {
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.doc-content tbody tr:hover {
  background: #f7fafc;
}

.doc-content tbody tr:last-child td {
  border-bottom: none;
}

/* 列表 */
.doc-content ul,
.doc-content ol {
  margin: 14px 0;
  padding-left: 24px;
}

.doc-content li {
  margin: 8px 0;
  color: var(--text);
}

.doc-content ul li::marker {
  color: var(--primary);
}

/* 提示框 */
.tip {
  background: #ebf8ff;
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  margin: 20px 0;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.tip-title {
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tip.warning {
  background: #fffaf0;
  border-left-color: var(--warning);
}

.tip.warning .tip-title {
  color: var(--warning);
}

.tip.danger {
  background: #fff5f5;
  border-left-color: var(--danger);
}

.tip.danger .tip-title {
  color: var(--danger);
}

.tip.success {
  background: #f0fff4;
  border-left-color: var(--success);
}

.tip.success .tip-title {
  color: var(--success);
}

/* 文件树样式 */
.file-tree {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin: 16px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.8;
  color: var(--text);
}

.file-tree .dir {
  color: var(--primary);
  font-weight: 600;
}

.file-tree .file {
  color: var(--text-secondary);
}

.file-tree .comment {
  color: #718096;
  font-style: italic;
}

/* 标签样式 */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
  margin: 0 2px;
}

.tag-required {
  background: #fed7d7;
  color: #c53030;
}

.tag-optional {
  background: #c6f6d5;
  color: #22543d;
}

/* 锚点偏移（考虑固定侧边栏） */
[id] {
  scroll-margin-top: 20px;
}

/* 返回顶部 */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all 0.3s;
  z-index: 99;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.back-to-top.visible {
  display: flex;
}

/* 移动端菜单按钮 */
.mobile-toggle {
  display: none;
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 101;
  width: 40px;
  height: 40px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .doc-sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s;
    box-shadow: var(--shadow-md);
  }
  
  .doc-sidebar.open {
    transform: translateX(0);
  }
  
  .doc-main {
    margin-left: 0;
  }
  
  .doc-content {
    padding: 24px 20px;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .doc-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.3);
    z-index: 99;
  }
  
  .doc-overlay.show {
    display: block;
  }
}

@media (max-width: 640px) {
  .doc-content h1 { font-size: 24px; }
  .doc-content h2 { font-size: 20px; }
  .doc-content h3 { font-size: 18px; }
  
  .doc-content table {
    font-size: 13px;
  }
  
  .doc-content th,
  .doc-content td {
    padding: 8px 10px;
  }
}