/* CSS Variables and Base Reset */
:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --primary-light: #DBEAFE;
  --secondary: #059669;
  --secondary-light: #D1FAE5;
  --accent: #7C3AED;
  --accent-light: #EDE9FE;
  --background: #F8FAFC;
  --surface: #FFFFFF;
  --text-primary: #1E293B;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --border: #E2E8F0;
  --border-light: #F1F5F9;
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  --sidebar-width: 320px;
  --header-height: 64px;
  --transition: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--background);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
}