/* color palette from <https://github.com/vuejs/theme> */
/* 
   Most variables are replaced by Vant CSS variables.
   Keeping only what's necessary or mapping to Vant.
*/

:root {
  --van-danger-color: rgb(255, 107, 107) !important; /* 覆盖默认的深红色 #ee0a24 */
  --color-background: var(--van-background);
  --color-background-soft: var(--van-background-2);
  --color-background-mute: var(--van-gray-1);

  --color-border: var(--van-border-color);
  --color-border-hover: var(--van-gray-5);

  --color-heading: var(--van-text-color);
  --color-text: var(--van-text-color);

  --section-gap: 160px;

  /* Chart Colors */
  --chart-color-1: #FF6B6B;
  --chart-color-2: #4ECDC4;
  --chart-color-3: #45B7D1;
  --chart-color-4: #FFA07A;
  --chart-color-5: #98D8C8;
  --chart-color-6: #F7DC6F;
  --chart-color-7: #BB8FCE;
  --chart-color-8: #85C1E2;
  --chart-color-9: #F8B88B;
  --chart-color-10: #AAB7B8;
  --chart-color-11: #FF8ED4;
  --chart-color-12: #67E6DC;
  --chart-color-13: #FFAB73;
  --chart-color-14: #C9B1FF;
  --chart-color-15: #7BDFF2;

  /* Status Colors for Charts */
  --chart-success: #52c41a;
  --chart-warning: #faad14;
  --chart-danger: #f5222d;
  --chart-primary: #1890ff;
  --chart-shadow: rgba(0,138,255,0.45);
  --chart-axis: #E6EBF8;
  --chart-split: #eee;
  --chart-text-muted: #999;

  /* Heatmap Colors - Light Mode */
  --heatmap-level-0: var(--van-gray-2);
  --heatmap-level-1: #9be9a8;
  --heatmap-level-2: #40c463;
  --heatmap-level-3: #30a14e;
  --heatmap-level-4: #216e39;
}

@media (prefers-color-scheme: dark) {
  :root {
    --chart-axis: #333;
    --chart-split: #333;
    --chart-text-muted: #666;
    
    /* Heatmap Colors - Dark Mode (GitHub Style) */
    --heatmap-level-0: #161b22;
    --heatmap-level-1: #0e4429;
    --heatmap-level-2: #006d32;
    --heatmap-level-3: #26a641;
    --heatmap-level-4: #39d353;
  }
}

/* Removed manual dark mode media query as Vant handles it */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  font-weight: normal;
}

body {
  min-height: 100vh;
  color: var(--van-text-color);
  background: var(--van-background);
  transition:
    color 0.5s,
    background-color 0.5s;
  line-height: 1.6;
  font-family:
    Inter,
    -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    Oxygen,
    Ubuntu,
    Cantarell,
    'Fira Sans',
    'Droid Sans',
    'Helvetica Neue',
    sans-serif;
  font-size: 15px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}