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

/* Base */
body {
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.5;
  padding: 1rem;
  max-width: 65ch;
  margin: 0 auto;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  line-height: 1.2;
}

p, ul, ol {
  margin-bottom: 1em;
}

/* Links */
a {
  color: #0066cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Forms */
input, textarea, select, button {
  font: inherit;
  padding: 0.5em;
  border: 1px solid #ccc;
  border-radius: 4px;
}

button {
  background: #0066cc;
  color: white;
  border: none;
  cursor: pointer;
}

button:hover {
  background: #0052a3;
}