:root {
  color-scheme: light;
  --ink: #202124;
  --muted: #5c636a;
  --line: #d6dce1;
  --paper: #f7f9f8;
  --panel: #ffffff;
  --accent: #0f6f68;
  --accent-dark: #0a4c48;
  --soft: #e6f2f0;
}

* {
  box-sizing: border-box;
}

html {
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}

body {
  margin: 0;
}

a {
  color: var(--accent-dark);
  text-underline-offset: 0.18em;
}

header,
main,
footer {
  width: min(100% - 32px, 960px);
  margin-inline: auto;
}

nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-block: 20px;
  color: var(--muted);
  font-size: 0.95rem;
}

nav a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

header section {
  padding: clamp(48px, 8vw, 96px) 0 clamp(32px, 6vw, 72px);
  border-bottom: 1px solid var(--line);
}

header section > p:first-child {
  display: inline-block;
  margin: 0 0 18px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent-dark);
  background: var(--soft);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  line-height: 1.08;
  margin: 0;
}

h1 {
  max-width: 760px;
  font-size: 5rem;
}

h2 {
  font-size: 2.1rem;
}

p {
  margin: 0;
}

header section > p:last-child {
  max-width: 720px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 1.25rem;
}

main {
  display: grid;
  gap: 14px;
  padding-block: 18px 54px;
}

main > section {
  display: grid;
  grid-template-columns: minmax(18rem, 0.42fr) minmax(18rem, 1fr);
  gap: clamp(0rem, 2vh, 2rem) clamp(18px, 4vw, 56px);
  padding: 2rem 0 clamp(2rem, 5vw, 6rem);
  border-bottom: 1px solid var(--line);
}

main > section > :not(h2) {
  grid-column: 2;
}

main > section > h2 {
  grid-row: 1 / span 2;
}

main > section > p + p,
main > section > p + details {
  margin-top: 14px;
}

main p,
li {
  color: var(--muted);
  font-size: 1.04rem;
}

strong {
  color: var(--ink);
}

ul {
  margin: 0;
  padding-left: 1.15rem;
}

li + li {
  margin-top: 8px;
}

details {
  overflow: clip;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

summary {
  cursor: pointer;
  padding: 16px 18px;
  color: var(--accent-dark);
  font-weight: 700;
}

pre {
  overflow: auto;
  max-height: 440px;
  margin: 0;
  padding: 18px;
  border-top: 1px solid var(--line);
  background: #f3f6f5;
  color: #30343a;
  font-size: 0.9rem;
  line-height: 1.45;
  white-space: pre-wrap;
}

footer {
  padding-block: 26px 34px;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
}

@media (max-width: 720px) {
  nav,
  main > section {
    display: block;
  }

  nav span {
    display: block;
    margin-top: 4px;
  }

  main > section > :not(h2) {
    margin-top: 16px;
  }

  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 1.6rem;
  }

  header section > p:last-child {
    font-size: 1.08rem;
  }
}

@media (max-width: 420px) {
  h1 {
    font-size: 2.45rem;
  }
}