:root {
  color-scheme: light dark;
  --background: #ffffff;
  --text: #1d1d1f;
  --secondary-text: #6e6e73;
  --separator: #d2d2d7;
  --link: #0066cc;
  --hero: #ece8f6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #000000;
    --text: #f5f5f7;
    --secondary-text: #a1a1a6;
    --separator: #424245;
    --link: #2997ff;
    --hero: #2c2640;
  }
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
  border-radius: 4px;
}

.container {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header and navigation */

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

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
}

.wordmark {
  color: var(--text);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.wordmark:hover {
  text-decoration: none;
}

.site-nav ul {
  display: flex;
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  color: var(--secondary-text);
  font-size: 15px;
}

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

/* Home */

.hero {
  margin: 48px 0 0;
  padding: 72px 32px;
  border-radius: 28px;
  background: var(--hero);
  text-align: center;
}

.hero h1 {
  margin: 0;
  font-family: ui-rounded, -apple-system, BlinkMacSystemFont, "SF Pro Rounded", "Helvetica Neue", Arial, sans-serif;
  font-size: 64px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 12px 0 0;
  font-size: 24px;
  font-weight: 500;
  line-height: 1.3;
}

.description {
  max-width: 480px;
  margin: 24px auto 0;
  color: var(--secondary-text);
  font-size: 19px;
}

.home-links {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin: 40px 0 0;
  padding: 0;
  list-style: none;
}

/* Document pages */

.page {
  padding: 64px 0 24px;
}

.page h1 {
  margin: 0 0 32px;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page p {
  margin: 0 0 20px;
}

/* Footer */

.site-footer {
  margin-top: 64px;
  padding: 24px 0 40px;
  color: var(--secondary-text);
  font-size: 13px;
}

.site-footer p {
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid var(--separator);
}

@media (max-width: 600px) {
  body {
    font-size: 16px;
  }

  .container {
    padding: 0 20px;
  }

  .site-nav ul {
    gap: 20px;
  }

  .hero {
    margin-top: 24px;
    padding: 56px 24px;
    border-radius: 22px;
  }

  .hero h1 {
    font-size: 48px;
  }

  .tagline {
    font-size: 21px;
  }

  .description {
    font-size: 17px;
  }

  .page {
    padding-top: 40px;
  }

  .page h1 {
    font-size: 32px;
  }
}