:root {
  --primary: #1d5fa8;
  --primary-dark: #185799;
  --primary-light: #2d54b8;
  --primary-mid: #235dae;
  --accent: #ed7100;
  --accent-light: #ff8c1a;
  --cyan: #04defe;
  --bg: #f5f5f5;
  --surface: #ffffff;
  --text: #151515;
  --text-muted: #626262;
  --border: #e2e2e2;
  --bot-bg: #eef4fb;
  --bot-bg-alt: #e8f0fa;
  --user-bg: #1d5fa8;
  --user-text: #ffffff;
  --shadow: 0 4px 20px rgba(29, 95, 168, 0.12);
  --radius: 12px;
  --header-gradient: linear-gradient(135deg, #185799 0%, #1d5fa8 50%, #2d54b8 100%);
}