:root {
  --bg-main: #f5f7fa;
  --bg-card: #ffffff;

  --border: #e2e5ec;

  --text-primary: #1c1f26;
  --text-secondary: #636e85;

  --accent: #3b82f6;
  --accent-hover: #2563eb;

  --error-bg: #fee2e2;
  --error-border: #fca5a5;
  --error-text: #b91c1c;

  --info-bg: rgb(221, 237, 251);
  --info-border: rgb(172, 189, 204);

  --radius: 14px;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
  --transition: 160ms ease;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  color: var(--text-primary);

  background:
    radial-gradient(
      600px 400px at 15% 10%,
      rgba(59, 130, 246, 0.12),
      transparent 60%
    ),
    radial-gradient(
      500px 350px at 85% 20%,
      rgba(99, 102, 241, 0.10),
      transparent 65%
    ),
    radial-gradient(
      700px 500px at 50% 90%,
      rgba(14, 165, 233, 0.08),
      transparent 70%
    ),
    var(--bg-main);

  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}