:root {
  --foreground: #171717;
  --background: #ffffff;
  --primary: #0070f3;
  --error: #e00;
  --success: #0a0;
  --warning: #f80;
}

@media (prefers-color-scheme: dark) {
  :root {
    --foreground: #ededed;
    --background: #0a0a0a;
  }
}

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

html,
body {
  max-width: 100vw;
  overflow-x: hidden;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--background);
  color: var(--foreground);
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button {
  cursor: pointer;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  background: var(--primary);
  color: white;
  font-size: 1rem;
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

input {
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}