html, body {
  margin: 0;
  padding: 0;
}

:root {
  --black: #111111;
  --white: #bbbbbb;
  --green: #04c231;
  --magenta: #ff77a8;
  --maxw: 800px;
}

/* buttons */
.btn {
  color: var(--magenta);
  border: 1px solid var(--magenta);
  padding: 0.2rem 0.5rem;
}

.btn:hover,
.btn:focus-visible {
  color: var(--black);
  background: var(--magenta);
  outline: none;
  text-decoration: none;
}

nav a {
  display: inline-flex;
}

/* body */
body {
  background: var(--black);
  color: var(--white);
  font-family: monospace;
  font-size: 1rem;
  line-height: 1.6;
}

/* header */
header {
  border-bottom: 1px solid var(--green);
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-title {
  color: var(--green);
  font-size: 1.2rem;
}

nav {
  display: flex;
  gap: 1rem;
}

/* main */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1rem;
}

h1, h2, h3 {
  line-height: 1.2;
  margin-top: 2rem;
}

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

a:hover {
  text-decoration: underline;
}

ul, ol {
  list-style: none;
  padding-left: 0;
}

li {
  margin: 0.5rem 0;
}

.post-content {
  margin: 2rem 0;
}