/* ==================================================
   QR Code Generator — Base Styles
   CSS Variables + Reset + Typography
   Shared across all pages
   ================================================== */

:root {
  --bg: #fff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-light: #eef2ff;
  --success: #10b981;
  --success-light: #d1fae5;
  --danger: #ef4444;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.07),0 2px 4px -2px rgba(0,0,0,.05);
}

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

body {
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  background: var(--bg-secondary);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

img {
  max-width: 100%;
  height: auto;
}