:root {
  --background-light: #f3f4f6;
  --text-light: #1f2937;
  --primary-light: #3b82f6;
  --card-background-light: #ffffff;
  --shadow-color-light: rgba(0, 0, 0, 0.1);

  --background-dark: #111827;
  --text-dark: #f9fafb;
  --primary-dark: #60a5fa;
  --card-background-dark: #1f2937;
  --shadow-color-dark: rgba(0, 0, 0, 0.5);

  --font-sans: 'Inter', sans-serif;
}

body {
  font-family: var(--font-sans);
  background-color: var(--background-light);
  color: var(--text-light);
  margin: 0;
  padding: 2rem;
  background-image: subtle-noise;
}

@media (prefers-color-scheme: dark) {
  body {
    background-color: var(--background-dark);
    color: var(--text-dark);
  }
}

h1 {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 2rem;
}

footer {
  background-color: var(--card-background-light);
  padding: 1rem;
  text-align: center;
  border-top: 1px solid var(--shadow-color-light);
  margin-top: 4rem;
}

@media (prefers-color-scheme: dark) {
  footer {
    background-color: var(--card-background-dark);
    border-top: 1px solid var(--shadow-color-dark);
  }
}