@import url("https://fonts.googleapis.com/css2?family=Spectral:ital,wght@0,400;0,600;0,700;1,400&display=swap");

:root {
  --bg: #ffffff;
  --bg-soft: #f0f0f0;
  --text: #363737;
  --text-dim: #757575;
  --accent: #ff6719;
  --border: #e6e6e6;
  --max-width: 680px;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  font-size: 18px;
  line-height: 1.6;
}

a:link,
a:visited {
  color: var(--text);
  text-decoration: underline;
}

a:hover {
  color: var(--accent);
}

h1,
h2,
h3,
.brand a,
.lede {
  font-family: Spectral, serif;
}

.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.site-header .inner,
.site-footer .inner,
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.site-header .inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand a:link,
.brand a:visited {
  font-weight: 700;
  font-size: 22px;
  color: var(--text);
  letter-spacing: 0.2px;
  text-decoration: none;
}

.brand a:hover {
  color: var(--accent);
  text-decoration: none;
}

.brand .tagline {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 400;
  margin-top: 2px;
}

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin: 0;
  padding: 0;
}

.site-nav a:link,
.site-nav a:visited {
  color: var(--text-dim);
  font-size: 14px;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--text);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

a.subscribe:link,
a.subscribe:visited,
a.subscribe:hover,
a.subscribe:active {
  display: inline-block;
  background: var(--accent);
  color: #ffffff;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
}

a.subscribe:hover {
  background: #ff5600;
  color: #ffffff;
}

.site-header a.subscribe {
  margin-left: auto;
  flex: 0 0 auto;
}

main {
  padding-top: 28px;
  padding-bottom: 40px;
}

h1 {
  font-size: 40px;
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 8px;
  letter-spacing: -0.3px;
}

h2 {
  font-size: 26px;
  line-height: 1.25;
  margin: 36px 0 10px;
  letter-spacing: -0.2px;
}

h3 {
  font-size: 20px;
  line-height: 1.3;
  margin: 24px 0 8px;
}

p {
  margin: 12px 0;
}

.lede {
  font-size: 21px;
  line-height: 1.45;
  color: var(--text);
  margin: 0 0 18px;
}

.muted {
  color: var(--text-dim);
}

ul,
ol {
  margin: 12px 0;
  padding-left: 24px;
}

li {
  margin: 6px 0;
}

ul.letters {
  list-style: none;
  margin: 0;
  padding: 0;
}

ul.letters li {
  margin: 0;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

ul.letters li > a:first-child:link,
ul.letters li > a:first-child:visited {
  font-family: Spectral, serif;
  font-size: 20px;
  color: var(--text);
  text-decoration: none;
}

ul.letters li > a:first-child:hover {
  color: var(--accent);
  text-decoration: none;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 16px 0;
  font-size: 15px;
}

th,
td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  color: var(--text-dim);
  font-weight: 600;
  background: transparent;
}

.card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 18px;
  margin: 16px 0;
}

.note {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  padding: 10px 14px;
  margin: 16px 0;
  font-size: 15px;
  color: var(--text);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--bg-soft);
  color: var(--text);
  padding: 2px 5px;
  border-radius: 4px;
}

.site-footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  border-bottom: none;
  font-size: 14px;
  color: var(--text-dim);
  padding-top: 18px;
  padding-bottom: 22px;
}

.site-footer .inner {
  display: grid;
  gap: 14px;
}

.site-footer .links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-footer .disclaimer {
  font-size: 13px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 4px;
}

@media (max-width: 640px) {
  h1 {
    font-size: 32px;
  }

  .site-header .inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-header a.subscribe {
    display: inline-block;
    margin-left: 0;
  }
}