/* ===== Base ===== */
* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  padding: 2rem 1rem;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  font-family: system-ui, -apple-system, BlinkMacSystemFont,
               "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #111;
  background: #fff;
}

/* ===== Navigation ===== */
nav {
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

nav a {
  text-decoration: none;
  color: #0050b3;
}

nav a:hover {
  text-decoration: underline;
}

/* ===== Headings ===== */
h1 {
  font-size: 1.8rem;
  margin-top: 0;
}

h2 {
  font-size: 1.3rem;
  margin-top: 2rem;
}

/* ===== Text ===== */
p {
  margin: 1rem 0;
}

ul {
  padding-left: 1.2rem;
}

/* ===== Footer-ish elements ===== */
small {
  color: #666;
}