:root {
  --page-width: 42rem;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
  line-height: 1.6;
  overflow-wrap: break-word;
}

.site-shell {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 1.5rem 1rem 4rem;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

table {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
}

th,
td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid;
  text-align: left;
  vertical-align: top;
}

pre {
  overflow-x: auto;
}

blockquote {
  margin-left: 0;
  padding-left: 1rem;
  border-left: 1px solid;
}

small,
figcaption {
  display: block;
}

.inline {
  width: auto !important;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  margin-bottom: 2rem;
}

.site-logo {
  margin: 0 0 0.75rem;
  font-size: 1.5rem;
  font-weight: 600;
}

.site-nav,
.post-meta {
  margin: 0;
}

.site-main > :first-child,
.content-body > :first-child {
  margin-top: 0;
}

.content-header {
  margin-bottom: 1.5rem;
}

.content-header h1 {
  margin-bottom: 0.5rem;
}

.content-body > :last-child {
  margin-bottom: 0;
}

.content-body > :is(h2, h3, h4) {
  margin-top: 2rem;
}

.content-body img {
  margin: 1rem 0;
}

.signup-shell {
  margin: 2rem 0;
}

.signup-form {
  display: grid;
  gap: 0.75rem;
  max-width: 24rem;
}

.signup-form input,
.signup-form button {
  width: 100%;
  font: inherit;
  padding: 0.65rem 0.75rem;
}

@media (max-width: 40rem) {
  .site-shell {
    padding: 1rem 0.875rem 3rem;
  }

  th,
  td {
    padding: 0.5rem;
  }
}

button:disabled {
  cursor: not-allowed;
}