:root {
  color-scheme: light dark;
  --page: #ffffff;
  --text: #111418;
  --muted: #5d6470;
  --line: #d9dee5;
  --soft: #f5f7f9;
  --accent: #0f6b62;
  --code: #f2f4f6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #0d0f12;
    --text: #f2f4f6;
    --muted: #a4acb7;
    --line: #343a43;
    --soft: #171b20;
    --accent: #7fd6cc;
    --code: #15191e;
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.62;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration: none;
}

.skip {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10;
  padding: 0.6rem 0.9rem;
  background: var(--text);
  color: var(--page);
  transform: translateY(-100%);
}

.skip:focus {
  transform: translateY(0);
}

header,
footer,
main {
  width: min(44rem, calc(100% - 3rem));
  margin: 0 auto;
}

header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  color: inherit;
  font-size: 1.15rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

header nav,
footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 1rem;
  font-size: 0.94rem;
}

header nav a {
  color: var(--muted);
  text-decoration: none;
}

header nav a:hover,
header nav a:focus-visible {
  color: var(--text);
}

.hero {
  padding: 5.5rem 0 4rem;
}

h1,
h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 500;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 24ch;
  margin: 0;
  font-size: clamp(2.85rem, 9vw, 4.7rem);
  line-height: 1.02;
}

.hero p {
  max-width: 39rem;
  margin: 1.6rem 0 0;
  font-size: 1.12rem;
}

.command {
  display: grid;
  gap: 0.45rem;
  margin: 2.5rem 0 0.7rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: var(--soft);
}

.command span {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.command code {
  overflow-x: auto;
  padding: 0;
  border: 0;
  background: none;
  color: var(--text);
  font-size: 0.92rem;
  white-space: nowrap;
}

.fine {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

section {
  padding: 3rem 0;
  border-top: 1px solid var(--line);
}

#philosophy {
  padding: 2.7rem 0;
}

.label {
  margin: 0 0 0.6rem;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

blockquote {
  margin: 0;
  max-width: 38rem;
  border-left: 3px solid var(--text);
  padding-left: 1.2rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.28rem;
  line-height: 1.45;
}

h2 {
  margin: 0 0 1.1rem;
  font-size: 1.9rem;
  line-height: 1.15;
}

section p {
  max-width: 39rem;
}

.hero p,
section p {
  margin-top: 0;
}

.hero p + p,
section p + p {
  margin-top: 1rem;
}

table {
  width: 100%;
  margin: 1.6rem 0;
  border-collapse: collapse;
  text-align: left;
}

caption {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: left;
}

th,
td {
  padding: 0.78rem 0.9rem 0.78rem 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  width: 11rem;
  font-weight: 650;
}

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

code {
  padding: 0.12em 0.32em;
  border: 1px solid var(--line);
  border-radius: 0.2rem;
  background: var(--code);
  font-size: 0.88em;
}

pre {
  overflow-x: auto;
  margin: 1.3rem 0;
  padding: 1rem;
  border: 1px solid var(--line);
  background: var(--code);
  line-height: 1.6;
}

pre code {
  padding: 0;
  border: 0;
  background: none;
  font-size: 0.88rem;
}

footer {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
  padding: 2.5rem 0 3.5rem;
  border-top: 1px solid var(--line);
}

footer p {
  max-width: 28rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

footer nav {
  justify-content: flex-start;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 37rem) {
  header,
  footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  header nav,
  footer nav {
    justify-content: flex-start;
  }

  .hero {
    padding-top: 3.5rem;
  }

  th {
    width: auto;
  }

  th,
  td {
    display: block;
    padding-left: 0;
    padding-right: 0;
  }

  td {
    margin-top: -0.55rem;
  }

  blockquote {
    padding-left: 0.85rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}