:root {
  --md-primary-fg-color: #5c6bc0;
  --md-primary-fg-color--light: #8e99a4;
  --md-primary-fg-color--dark: #3949ab;
}

/* 代码块样式优化 */
.md-typeset code {
  border-radius: 4px;
}

.md-typeset pre > code {
  border-radius: 8px;
  padding: 1em;
}

/* 表格样式优化 */
.md-typeset table {
  border-radius: 8px;
  overflow: hidden;
}

.md-typeset table th {
  background-color: var(--md-primary-fg-color);
  color: white;
  font-weight: 600;
}

/* 提示框样式 */
.md-typeset .admonition {
  border-radius: 8px;
}

/* 首页大标题样式 */
.md-content__inner h1:first-child {
  font-weight: 700;
  background: linear-gradient(120deg, #5c6bc0, #8e24aa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Mermaid 图表居中 */
.mermaid {
  text-align: center;
}

/* 代码块行号 */
.highlight .linenos {
  color: var(--md-default-fg-color--light);
  background-color: var(--md-code-bg-color);
}

/* Logo 文字样式 - NC */
.md-header__button.md-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: -1px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.md-header__button.md-logo img {
  display: none;
}

.md-header__button.md-logo::after {
  content: "NC";
}

/* 导航栏中的 logo 样式 */
.md-nav__button.md-logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--md-primary-fg-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

.md-nav__button.md-logo img {
  display: none;
}

.md-nav__button.md-logo::after {
  content: "NC";
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 首页 Hero 区域样式 */
.nuclaw-hero {
  text-align: center;
  padding: 3rem 1rem;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  border-radius: 16px;
  margin-bottom: 2rem;
}

[data-md-color-scheme="slate"] .nuclaw-hero {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.nuclaw-hero h1 {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nuclaw-hero .tagline {
  font-size: 1.3rem;
  color: var(--md-default-fg-color--light);
  margin-bottom: 1.5rem;
}

.nuclaw-hero .cta-button {
  display: inline-block;
  padding: 0.8rem 2rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  text-decoration: none;
  border-radius: 30px;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s;
}

.nuclaw-hero .cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

/* 学习路径卡片 */
.learning-path {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.path-card {
  padding: 1.5rem;
  border-radius: 12px;
  border-left: 4px solid;
  background: var(--md-code-bg-color);
  transition: transform 0.2s;
}

.path-card:hover {
  transform: translateY(-4px);
}

.path-card.part-1 { border-color: #4caf50; }
.path-card.part-2 { border-color: #2196f3; }
.path-card.part-3 { border-color: #ff9800; }
.path-card.part-4 { border-color: #9c27b0; }
.path-card.part-5 { border-color: #f44336; }

.path-card h3 {
  margin-top: 0;
  font-size: 1.1rem;
}

.path-card .code-count {
  font-size: 0.85rem;
  color: var(--md-default-fg-color--light);
}

/* 进度展示 */
.progress-showcase {
  text-align: center;
  padding: 2rem;
  background: var(--md-code-bg-color);
  border-radius: 12px;
  margin: 2rem 0;
}

.progress-line {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}

.progress-step {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
}

.progress-step.beginner { background: #4caf50; color: white; }
.progress-step.intermediate { background: #2196f3; color: white; }
.progress-step.advanced { background: #ff9800; color: white; }
.progress-step.expert { background: #9c27b0; color: white; }
.progress-step.master { background: #f44336; color: white; }

.progress-arrow {
  color: var(--md-default-fg-color--light);
  font-size: 1.2rem;
}

/* 亮点高亮 */
.highlight-box {
  background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
  border: 1px solid #667eea30;
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1.5rem 0;
}

.highlight-box h3 {
  margin-top: 0;
  color: #667eea;
}