:root {
  --primary: #1a73e8;
  --primary-dark: #0d47a1;
  --success: #4caf50;
  --warning: #ff9800;
  --danger: #f44336;
  --light: #f8f9ff;
  --dark: #2a2a2a;
  --gray: #666;
  --border: #e0e7ff;
}

body.dark-mode {
  background: #121212;
  color: #eee;
}

body.dark-mode .tracking-form-container,
body.dark-mode .tracking-results {
  background: #1e1e1e;
  color: #eee;
}

@media print {
  .track-button, .toggle-theme, .track-another {
    display: none !important;
  }
  body {
    background: white;
    color: black;
  }
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}