* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background: #0a0b1d;
  color: #fff;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
}

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

.site-header {
  padding: 4rem 1.5rem 0;
}

.home {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background:
    radial-gradient(600px 600px at 20% 10%, rgba(139, 92, 246, 0.25), transparent 60%),
    radial-gradient(800px 800px at 50% 120%, rgba(79, 70, 229, 0.12), transparent 60%);
}

.hero {
  padding: 5rem 1.5rem 0;
}

.hero h1 {
  max-width: 48rem;
  font-size: 3rem;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.site-footer {
  display: grid;
  gap: 2rem;
  margin-top: auto;
  padding: 2.5rem 1.5rem;
}

.site-footer h3 {
  font-size: 0.875rem;
  line-height: 1.25rem;
  font-weight: 600;
  color: rgb(255 255 255 / 0.8);
}

.site-footer ul {
  list-style: none;
  margin-top: 0.75rem;
}

.site-footer li + li {
  margin-top: 0.5rem;
}

.site-footer a {
  font-size: 0.875rem;
  line-height: 1.25rem;
  color: rgb(255 255 255 / 0.6);
  text-decoration: none;
  transition: color 150ms;
}

.site-footer a:hover {
  color: rgb(255 255 255 / 0.8);
}

.doc {
  box-sizing: content-box;
  max-width: 48rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 5rem;
  color: rgb(255 255 255 / 0.7);
  line-height: 1.625;
}

.doc h1,
.doc h2 {
  color: #fff;
  font-weight: 600;
  line-height: 1.4;
}

.doc h1 {
  font-size: 1.5rem;
}

.doc h2 {
  font-size: 1.25rem;
  margin-top: 2.5rem;
}

.doc p,
.doc ul,
.doc ol {
  margin-top: 0.75rem;
}

.doc ul,
.doc ol {
  padding-left: 1.25rem;
}

.doc li + li {
  margin-top: 0.25rem;
}

.doc strong {
  color: rgb(255 255 255 / 0.85);
}

.doc a {
  text-decoration: underline;
  overflow-wrap: anywhere;
}

.doc a:hover {
  color: #fff;
}

@media (min-width: 640px) {
  .site-header {
    padding: 4rem 2.5rem 0;
  }

  .hero {
    padding: 7rem 2.5rem 0;
  }

  .hero h1 {
    font-size: 4.5rem;
  }

  .site-footer {
    grid-template-columns: 1fr 1fr;
    padding: 2.5rem;
  }

  .doc {
    padding: 4rem 2.5rem 5rem;
  }
}