:root {
  --ink: #14161a;
  --ink-soft: #565b66;
  --line: #e3e5ea;
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --accent: #2f6df6;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eceef2;
    --ink-soft: #9aa1ae;
    --line: #2a2e36;
    --bg: #0e1013;
    --bg-soft: #16191e;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */

header {
  border-bottom: 1px solid var(--line);
  padding: 22px 0;
  margin-bottom: 56px;
}

header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  font-weight: 600;
  font-size: 17px;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

header nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 15px;
  margin-left: 20px;
}

header nav a:hover { color: var(--ink); }

/* Type */

h1 {
  font-size: 34px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
  font-weight: 650;
}

h2 {
  font-size: 21px;
  letter-spacing: -0.01em;
  margin: 44px 0 12px;
  font-weight: 600;
}

h3 {
  font-size: 17px;
  margin: 28px 0 8px;
  font-weight: 600;
}

p { margin: 0 0 16px; }

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

ul { margin: 0 0 16px; padding-left: 22px; }

li { margin-bottom: 7px; }

.lede {
  font-size: 19px;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.meta {
  font-size: 14px;
  color: var(--ink-soft);
}

/* App cards on the landing page */

.apps {
  display: grid;
  gap: 16px;
  margin: 32px 0 8px;
}

.app-card {
  display: block;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  text-decoration: none;
  color: inherit;
  background: var(--bg-soft);
}

.app-card:hover { border-color: var(--ink-soft); }

.app-card strong {
  display: block;
  font-size: 18px;
  margin-bottom: 4px;
  font-weight: 600;
}

.app-card span {
  color: var(--ink-soft);
  font-size: 15.5px;
}

/* Callout */

.note {
  border-left: 3px solid var(--accent);
  background: var(--bg-soft);
  padding: 14px 18px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 24px 0;
}

.note p:last-child { margin-bottom: 0; }

/* FAQ */

.faq h3 { margin-top: 26px; }
.faq p { color: var(--ink-soft); }

/* Footer */

footer {
  border-top: 1px solid var(--line);
  margin-top: 72px;
  padding: 26px 0 48px;
  font-size: 14.5px;
  color: var(--ink-soft);
}

footer a { color: var(--ink-soft); }

footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  h1 { font-size: 28px; }
  header { margin-bottom: 40px; }
}