/* 字体引入 */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;700&family=Inter:wght@400;500;600;700&display=swap');

/* ==========================================================================
   Design System Variables
   ========================================================================== */
:root {
  /* Fonts */
  --md-text-font: "Inter", "Microsoft YaHei", "PingFang SC", sans-serif;
  --md-code-font: "JetBrains Mono", "Consolas", monospace;
  
  /* Light Mode Colors (High Contrast) */
  --color-primary-light: #2563EB;     /* Royal Blue */
  --color-accent-light: #0F172A;      /* Slate 900 */
  --color-bg-light: #FFFFFF;          /* Pure White */
  --color-surface-light: #F8FAFC;     /* Slate 50 */
  --color-border-light: #E2E8F0;      /* Slate 200 */
  --color-text-main-light: #1E293B;   /* Slate 800 */
  --color-text-muted-light: #64748B;  /* Slate 500 */
  
  /* Dark Mode Colors (Cyberpunk/Tech) */
  --color-primary-dark: #38BDF8;      /* Sky 400 */
  --color-accent-dark: #BC13FE;       /* Neon Purple */
  --color-bg-dark: #0F172A;           /* Slate 900 */
  --color-surface-dark: #1E293B;      /* Slate 800 */
  --color-border-dark: #334155;       /* Slate 700 */
  --color-text-main-dark: #F1F5F9;    /* Slate 100 */
  --color-glow: rgba(56, 189, 248, 0.5);
}

/* ==========================================================================
   Global Layout & Reset
   ========================================================================== */
.md-grid {
  max-width: 90% !important;
  margin-right: auto;
  margin-left: auto;
}

@media screen and (min-width: 76.25em) {
  .md-sidebar--primary { width: 16rem; }
  /* .md-sidebar--secondary { display: none; } */ /* 允许显示右侧目录，因为要增加收缩按钮 */
}

/* ==========================================================================
   Typography & Contrast Optimization
   ========================================================================== */
body {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Light Mode Typography */
body[data-md-color-scheme="default"] {
  --md-default-fg-color: var(--color-text-main-light);
  --md-default-fg-color--light: var(--color-text-muted-light);
  --md-primary-fg-color: var(--color-primary-light);
}

/* Dark Mode Typography */
body[data-md-color-scheme="slate"] {
  --md-default-fg-color: var(--color-text-main-dark);
  --md-primary-fg-color: var(--color-primary-dark);
}

/* Headings */
.md-typeset h1, .md-typeset h2, .md-typeset h3 {
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-top: 2em;
}

.md-typeset h1 {
  font-size: 2.25rem;
  border-bottom: 2px solid var(--md-default-fg-color--lightest);
  padding-bottom: 0.5rem;
  color: var(--md-default-fg-color);
  background: none; /* Remove gradient for better legibility */
  -webkit-text-fill-color: initial;
}

[data-md-color-scheme="slate"] .md-typeset h1 {
  /* Only apply gradient in dark mode where contrast allows */
  background: linear-gradient(90deg, var(--color-primary-dark), #A78BFA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  border-bottom: 2px solid var(--color-border-dark);
}

.md-typeset h2 {
  font-size: 1.5rem;
  border-left: 4px solid var(--md-primary-fg-color);
  padding-left: 1rem;
}

/* ==========================================================================
   Component: Cards (Grid Layout)
   ========================================================================== */
.md-typeset .grid.cards > ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.md-typeset .grid.cards > ul > li {
  margin: 0;
  padding: 1.5rem;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start; /* 顶部对齐，通过 flex-grow 撑开内容 */
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-height: 220px; /* 设置最小高度，确保所有卡片高度一致 */
}

/* 让中间的描述文本自动占据剩余空间，将分割线和链接推到底部 */
.md-typeset .grid.cards > ul > li > p {
  flex-grow: 1; 
  margin-bottom: 0;
}

.md-typeset .grid.cards > ul > li > hr {
  margin-top: 1rem;
  margin-bottom: 1rem;
}

/* 链接样式优化 */
.md-typeset .grid.cards > ul > li > a {
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  text-decoration: none;
  padding-top: 0.5rem;
}

/* 修复图标垂直对齐问题 */
.md-typeset .grid.cards .twemoji {
  width: 1.5rem;
  height: 1.5rem;
  margin-right: 0.5rem;
  margin-bottom: 0; /* 移除之前的底部边距 */
  vertical-align: middle;
  color: var(--md-primary-fg-color);
}

/* Light Mode Cards - Clean & Professional */
[data-md-color-scheme="default"] .md-typeset .grid.cards > ul > li {
  background: var(--color-bg-light);
  border: 1px solid var(--color-border-light);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

[data-md-color-scheme="default"] .md-typeset .grid.cards > ul > li:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  border-color: var(--color-primary-light);
}

/* Dark Mode Cards - Tech & Glow */
[data-md-color-scheme="slate"] .md-typeset .grid.cards > ul > li {
  background: var(--color-surface-dark);
  border: 1px solid var(--color-border-dark);
}

[data-md-color-scheme="slate"] .md-typeset .grid.cards > ul > li:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 20px var(--color-glow);
  border-color: var(--color-primary-dark);
}

/* Icons inside cards */
/* .md-typeset .grid.cards .twemoji {
  width: 2rem;
  height: 2rem;
  margin-bottom: 1rem;
  color: var(--md-primary-fg-color);
} */

/* ==========================================================================
   Component: Tables
   ========================================================================== */
.md-typeset table:not([class]) {
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 8px;
  overflow: hidden;
  width: 100%;
  margin: 1.5em 0;
  border: 1px solid var(--md-default-fg-color--lightest);
}

.md-typeset table:not([class]) th {
  background-color: var(--md-default-fg-color--lightest);
  color: var(--md-default-fg-color);
  font-weight: 600;
  text-transform: none; /* No uppercase */
  padding: 12px 16px;
}

[data-md-color-scheme="slate"] .md-typeset table:not([class]) th {
  background-color: rgba(56, 189, 248, 0.1);
  color: var(--color-primary-dark);
  border-bottom: 1px solid var(--color-border-dark);
}

/* ==========================================================================
   Component: Code Blocks
   ========================================================================== */
.md-typeset pre > code {
  border-radius: 8px;
  font-family: var(--md-code-font);
}

[data-md-color-scheme="slate"] .md-typeset pre > code {
  border: 1px solid var(--color-border-dark);
  background-color: #0B1120; /* Darker than bg */
}

/* ==========================================================================
   Component: Admonitions
   ========================================================================== */
.md-typeset .admonition {
  border-radius: 8px;
  border-left-width: 4px;
}

[data-md-color-scheme="default"] .md-typeset .admonition {
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

/* ==========================================================================
   Scrollbars
   ========================================================================== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--md-default-fg-color--lightest);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--md-default-fg-color--light);
}