:root {
  --bg-primary: #f5f5f5;
  --bg-secondary: #ffffff;
  --text-primary: #2c2c2c;
  --text-secondary: #666666;
  --accent-color: #d32f2f;
  --border-color: #e0e0e0;
  --card-shadow: 0 2px 8px rgba(0,0,0,0.1);
  --whatsapp-green: #25D366;
  --transition: all 0.3s ease;
}

[data-theme="dark"] {
  --bg-primary: #1a1a1a;
  --bg-secondary: #2c2c2c;
  --text-primary: #f5f5f5;
  --text-secondary: #b0b0b0;
  --accent-color: #ff5252;
  --border-color: #404040;
  --card-shadow: 0 2px 8px rgba(0,0,0,0.6);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  transition: background-color var(--transition), color var(--transition);
  overflow-x: hidden;
}

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

a {
  text-decoration: none;
}