:root {
  --ink: #1a1c1a;
  --muted: #6b6e6a;
  --line: #e4e3de;
  --bg: #fcfbf8;
  --code-bg: #f4f3ee;
  --accent: #1a1c1a;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  /* terminal: quiet IDE light palette on warm paper */
  --tok-prompt: #2f6f55;
  --tok-cmd: #2a5580;
  --tok-key: #5a4d78;
  --tok-str: #8a5a3c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 ui-sans-serif, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 32px 0 0;
}

.brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  text-decoration: none;
}

nav a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  margin-left: 20px;
}

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

h1 {
  font-family: var(--mono);
  font-size: 56px;
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: 0;
  margin: 36px 0 6px;
}

h1 .title {
  color: inherit;
  text-decoration: none;
}

.tagline {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 550;
  color: var(--ink);
  margin: 0 0 12px;
}

.lede {
  font-size: 17px;
  color: var(--muted);
  margin: 0 0 22px;
  max-width: 56ch;
}

.lede strong {
  color: var(--ink);
  font-weight: 600;
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 16px 18px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.65;
  margin: 0 0 10px;
  white-space: pre;
  color: var(--ink);
}

pre.terminal .tok-prompt {
  color: var(--tok-prompt);
  font-weight: 600;
}

pre.terminal .tok-cmd {
  color: var(--tok-cmd);
  font-weight: 600;
}

pre.terminal .tok-key {
  color: var(--tok-key);
}

pre.terminal .tok-str {
  color: var(--tok-str);
}

.hint {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 16px;
}

.hint a { color: var(--accent); text-decoration: none; }
.hint a:hover,
.hint a:focus-visible { text-decoration: underline; }

section {
  border-top: 1px solid var(--line);
  padding: 18px 0;
}

section p {
  margin: 0;
  color: var(--muted);
  max-width: 60ch;
}

section p + p {
  margin-top: 12px;
}

section h2 {
  font-size: 15px;
  font-weight: 650;
  margin: 0 0 8px;
}

section ul {
  margin: 12px 0 0;
  padding-left: 1.2em;
  color: var(--muted);
  max-width: 60ch;
}

section li + li {
  margin-top: 6px;
}

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

section a:hover,
section a:focus-visible {
  text-decoration: underline;
}

.lede a {
  color: var(--accent);
  text-decoration: none;
}

.lede a:hover,
.lede a:focus-visible {
  text-decoration: underline;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--code-bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 5px;
}

footer {
  border-top: 1px solid var(--line);
  padding: 18px 0 32px;
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

footer a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 16px;
}

footer a:hover,
footer a:focus-visible {
  color: var(--ink);
}

.not-found {
  padding: 64px 0 48px;
}

.not-found h1 {
  margin-top: 0;
  font-size: 42px;
}

@media (max-width: 480px) {
  h1 { margin-top: 28px; font-size: 42px; }
  .tagline { font-size: 18px; }
  pre { font-size: 12px; padding: 14px; }
  footer { flex-direction: column; gap: 12px; }
  footer a { margin: 0 16px 0 0; }
  nav a { margin-left: 14px; }
}