:root {
  --color-bg: #f5f5f7;
  --color-surface: #ffffff;
  --color-border: #e5e5e7;
  --color-text: #1d1d1f;
  --color-text-secondary: #86868b;
  --color-primary: #0071e3;
  --color-primary-hover: #0077ed;
  --color-success: #34c759;
  --color-warning: #ff9500;
  --color-error: #ff3b30;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

button {
  cursor: pointer;
  font-family: inherit;
}
