@import "tailwindcss";

/**
 * Tailwind CSS v4 主题配置
 * 使用 @theme 指令定义主题变量
 */
@theme {
  --color-primary-50: var(--primary-50);
  --color-primary-100: var(--primary-100);
  --color-primary-200: var(--primary-200);
  --color-primary-300: var(--primary-300);
  --color-primary-400: var(--primary-400);
  --color-primary-500: var(--primary-500);
  --color-primary-600: var(--primary-600);
  --color-primary-700: var(--primary-700);
  --color-primary-800: var(--primary-800);
  --color-primary-900: var(--primary-900);
  --color-primary-950: var(--primary-950);

  /* 中性色 */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  --color-gray-950: #030712;

  /* 语义色 - Success */
  --color-success-50: #f0fdf4;
  --color-success-100: #dcfce7;
  --color-success-200: #bbf7d0;
  --color-success-300: #86efac;
  --color-success-400: #4ade80;
  --color-success-500: #22c55e;
  --color-success-600: #16a34a;
  --color-success-700: #15803d;
  --color-success-800: #166534;
  --color-success-900: #14532d;
  --color-success-950: #052e16;

  /* 语义色 - Warning */
  --color-warning-50: #fffbeb;
  --color-warning-100: #fef3c7;
  --color-warning-200: #fde68a;
  --color-warning-300: #fcd34d;
  --color-warning-400: #fbbf24;
  --color-warning-500: #f59e0b;
  --color-warning-600: #d97706;
  --color-warning-700: #b45309;
  --color-warning-800: #92400e;
  --color-warning-900: #78350f;
  --color-warning-950: #451a03;

  /* 语义色 - Error */
  --color-error-50: #fef2f2;
  --color-error-100: #fee2e2;
  --color-error-200: #fecaca;
  --color-error-300: #fca5a5;
  --color-error-400: #f87171;
  --color-error-500: #ef4444;
  --color-error-600: #dc2626;
  --color-error-700: #b91c1c;
  --color-error-800: #991b1b;
  --color-error-900: #7f1d1d;
  --color-error-950: #450a0a;

  /* 语义色 - Info */
  --color-info-50: #eff6ff;
  --color-info-100: #dbeafe;
  --color-info-200: #bfdbfe;
  --color-info-300: #93c5fd;
  --color-info-400: #60a5fa;
  --color-info-500: #3b82f6;
  --color-info-600: #2563eb;
  --color-info-700: #1d4ed8;
  --color-info-800: #1e40af;
  --color-info-900: #1e3a8a;
  --color-info-950: #172554;

  /* 圆角 - 更小的圆角 */
  --radius-xs: 0.125rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.625rem;
  --radius-2xl: 0.75rem;
  --radius-3xl: 1rem;
  --radius-full: 9999px;
}

/**
 * Design System CSS 变量
 *
 * 定义全局 CSS 变量用于主题切换和动态样式
 */
:root {
  /* 主题色 - 默认 Teal */
  --primary-50: #f0f9f8;
  --primary-100: #e0f2f0;
  --primary-200: #bce6e1;
  --primary-300: #8dd4cc;
  --primary-400: #5ec2b7;
  --primary-500: #35786f;
  --primary-600: #2a605b;
  --primary-700: #1f4844;
  --primary-800: #183835;
  --primary-900: #122826;
  --primary-950: #0a1413;

  /* 基础颜色 */
  --background: #ffffff;
  --foreground: #111827;
  --foreground-secondary: #4b5563;
  --foreground-tertiary: #6b7280;
  --foreground-disabled: #9ca3af;

  /* 背景 */
  --background-secondary: #f3f4f6;
  --background-tertiary: #e5e7eb;

  /* 边框 */
  --border: #d1d5db;
  --border-secondary: #e5e7eb;
  --border-focus: #35786f;

  /* 圆角 - 更小的圆角 */
  --radius-xs: 0.125rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.625rem;
  --radius-2xl: 0.75rem;
  --radius-3xl: 1rem;
  --radius-full: 9999px;

  /* 阴影 */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-primary: 0 4px 14px 0 rgba(53, 120, 111, 0.39);

  /* 间距 */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* 过渡 */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/**
 * 全局基础样式
 */
* {
  box-sizing: border-box;
}

html {
  height: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  height: 100%;
  margin: 0;
  padding: 0;
  background: var(--primary-50);
  color: var(--foreground);
  font-family: var(--font-geist-sans), -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

/**
 * 代码块字体
 */
.code-block,
code,
kbd,
pre,
samp {
  font-family: var(--font-geist-mono), ui-monospace, SFMono-Regular, Monaco, Consolas, monospace;
}

/**
 * 导航栏按钮样式
 */
.navbar-btn {
  @apply border-0 bg-transparent hover:bg-black/30 shadow-none;
  transition: background-color var(--transition-fast);
}

/**
 * 焦点可见性优化
 */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/**
 * 选择文本样式
 */
::selection {
  background-color: var(--color-primary-200);
  color: var(--color-primary-900);
}

/**
 * 滚动条样式
 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--background-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--foreground-tertiary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--foreground-secondary);
}