:root {
  --bg: #f6f3ee;
  --surface: #fffdf9;
  --line: #e3ddd2;
  --text: #16191f;
  --text-2: #464b55;
  --muted: #767b85;
  --button: #16191f;
  --button-text: #ffffff;
  --code: #ebe6dc;
  --todo: #fbe38a;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --surface: #181b21;
    --line: #2a2e36;
    --text: #ececf0;
    --text-2: #b6bac4;
    --muted: #868b95;
    --button: #ececf0;
    --button-text: #16191f;
    --code: #242830;
    --todo: #6b5a12;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-underline-offset: 3px;
}

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

code,
kbd {
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 0.88em;
  background: var(--code);
  border-radius: 6px;
  padding: 0.1em 0.4em;
}

kbd {
  font-family: inherit;
  border: 1px solid var(--line);
  white-space: nowrap;
}

.wrap {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header and footer */

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  text-decoration: none;
}

.brand img {
  margin: -4px -2px;
}

.top nav {
  display: flex;
  gap: 20px;
  font-size: 15px;
}

.top nav a,
.foot a {
  color: var(--text-2);
  text-decoration: none;
}

.top nav a:hover,
.foot a:hover {
  color: var(--text);
  text-decoration: underline;
}

.foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  padding: 32px 0 48px;
  border-top: 1px solid var(--line);
  font-size: 15px;
}

/* Hero */

.hero {
  text-align: center;
  padding: 32px 0 72px;
}

.hero .icon {
  width: 184px;
  margin-bottom: 4px;
}

h1 {
  font-size: clamp(40px, 8vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0 0 14px;
}

.tagline {
  font-size: clamp(21px, 3.4vw, 26px);
  font-weight: 650;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}

.lede {
  color: var(--text-2);
  font-size: 19px;
  max-width: 30em;
  margin: 6px auto 36px;
}

.notice {
  max-width: 30em;
  margin: 0 auto 24px;
  padding: 12px 16px;
  border-radius: 12px;
  background: var(--code);
  font-size: 16px;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 28px;
  border-radius: 999px;
  background: var(--button);
  color: var(--button-text);
  font-size: 18px;
  font-weight: 650;
  text-decoration: none;
  transition: opacity 0.15s;
}

.button:hover {
  opacity: 0.86;
}

.button.small {
  padding: 10px 20px;
  font-size: 16px;
}

.button.is-soon {
  background: transparent;
  color: var(--muted);
  border: 1.5px dashed var(--line);
  cursor: default;
}

.button.is-soon:hover {
  opacity: 1;
}

.button.is-soon svg {
  display: none;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  color: var(--muted);
  font-size: 15px;
  margin: 16px 0 0;
}

.meta > :not([hidden]) ~ :not([hidden])::before {
  content: '·';
  margin: 0 0.55em;
}

/* Sections */

section {
  padding: 56px 0;
  border-top: 1px solid var(--line);
}

h2 {
  font-size: 30px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 28px;
}

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

.steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
}

.step {
  counter-increment: step;
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 20px;
  padding: 26px 28px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
}

.step::before {
  content: counter(step);
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--button);
  color: var(--button-text);
  font-weight: 700;
}

.step p,
.step ol {
  color: var(--text-2);
  margin: 0 0 12px;
}

.step > div > :last-child {
  margin-bottom: 0;
}

.step ol {
  padding-left: 1.3em;
}

.step ol li + li {
  margin-top: 6px;
}

.step b,
.features b {
  color: var(--text);
  font-weight: 600;
}

.tip {
  font-size: 15px;
}

.copy {
  font: inherit;
  font-size: 13px;
  color: var(--text-2);
  background: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1px 8px;
  margin-left: 2px;
  cursor: pointer;
  vertical-align: 1px;
}

.copy:hover {
  color: var(--text);
  border-color: var(--muted);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.features p {
  color: var(--text-2);
  margin: 0;
}

details {
  border-bottom: 1px solid var(--line);
}

details:first-of-type {
  border-top: 1px solid var(--line);
}

summary {
  cursor: pointer;
  padding: 16px 0;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: '+';
  color: var(--muted);
  font-weight: 400;
  font-size: 22px;
  line-height: 1;
}

details[open] summary::after {
  content: '−';
}

details p {
  color: var(--text-2);
  margin: 0 0 18px;
  max-width: 40em;
}

/* Privacy policy */

.prose {
  max-width: 680px;
  padding: 24px 0 64px;
}

.prose h1 {
  font-size: clamp(32px, 6vw, 44px);
}

.prose h2 {
  font-size: 22px;
  margin: 40px 0 12px;
}

.prose p,
.prose li {
  color: var(--text-2);
}

.prose .updated {
  color: var(--muted);
  margin-top: 0;
}

.prose strong {
  color: var(--text);
}

mark.todo {
  background: var(--todo);
  color: inherit;
  border-radius: 4px;
  padding: 0 4px;
}

@media (max-width: 560px) {
  body {
    font-size: 16px;
  }

  .wrap {
    padding: 0 16px;
  }

  .top nav {
    display: none;
  }

  .hero {
    padding: 16px 0 56px;
  }

  .hero .icon {
    width: 150px;
  }

  .lede {
    font-size: 17px;
  }

  section {
    padding: 44px 0;
  }

  .step {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 22px 20px;
  }
}