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

:root {
  --primary: #4A90D9;
  --primary-dark: #2E5C8A;
  --success: #5AC8A8;
  --warning: #F5A623;
  --error: #D0021B;
  --background: #FFFFFF;
  --surface: #F5F7FA;
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-muted: #999999;
  --border: #E5E7EB;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--surface);
  color: var(--text-primary);
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

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

input, select, textarea {
  font-family: inherit;
}