:root {
  --bg: #0e0e10;
  --fg: #f6f6f6;
  --muted: #a0a0a8;
  --accent: #c9ff5a;
  --code-bg: #1b1b1f;
  --rule: #2a2a2f;
  --line-h: 1.55;
  --measure: 64ch;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #fafafa;
    --fg: #111;
    --muted: #5a5a60;
    --accent: #2563eb;
    --code-bg: #f0f0f3;
    --rule: #d4d4d8;
  }
}
* {
  box-sizing: border-box;
}
html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
}
body {
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  font-size: 17px;
  line-height: var(--line-h);
  padding: 4rem 1.5rem;
  max-width: var(--measure);
  margin: 0 auto;
}
h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}
h2 {
  font-size: 1.5rem;
  margin: 3rem 0 0.75rem;
  letter-spacing: -0.01em;
}
h3 {
  font-size: 1.1rem;
  margin: 2rem 0 0.5rem;
}
p {
  margin: 0 0 1rem;
  color: var(--fg);
}
.lead {
  font-size: 1.25rem;
  color: var(--muted);
  margin: 0 0 2rem;
  max-width: 56ch;
}
a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}
a:hover {
  opacity: 0.8;
}
code, pre {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.95rem;
}
pre {
  background: var(--code-bg);
  padding: 1rem 1.25rem;
  border-radius: 8px;
  overflow-x: auto;
  line-height: 1.5;
  margin: 1rem 0 1.5rem;
}
code {
  background: var(--code-bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
pre code {
  background: transparent;
  padding: 0;
}
hr {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 3rem 0;
}
table {
  border-collapse: collapse;
  width: 100%;
  margin: 1rem 0 2rem;
}
th, td {
  border-bottom: 1px solid var(--rule);
  padding: 0.5rem 0.75rem;
  text-align: left;
}
th {
  font-weight: 600;
}
.install {
  background: var(--code-bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 1.05rem;
  margin: 1.5rem 0 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.install button {
  background: var(--accent);
  color: var(--bg);
  border: 0;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
}
footer {
  color: var(--muted);
  margin: 4rem 0 0;
  font-size: 0.9rem;
}
ul {
  padding-left: 1.25rem;
}
ul li {
  margin: 0.25rem 0;
}
.nav {
  display: flex;
  gap: 1.5rem;
  margin: 0 0 2rem;
  font-size: 0.95rem;
  flex-wrap: wrap;
}
.nav a {
  color: var(--muted);
  border-bottom: none;
}
.nav a:hover {
  color: var(--fg);
}
.lang-switch {
  margin-left: auto;
  display: inline-flex;
  gap: 0.4rem;
  font-size: 0.85rem;
}
.lang-switch a {
  color: var(--muted);
  border-bottom: none;
  padding: 0 0.25rem;
}
.lang-switch a.active {
  color: var(--fg);
  font-weight: 600;
}
.lang-switch a:hover {
  color: var(--fg);
}

/* Shared accessible controls and a wider, responsive landing page. */
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
button { font: inherit; cursor: pointer; }
.skip-link { position: absolute; top: -6rem; left: 1rem; padding: .7rem; background: var(--bg); z-index: 2; }
.skip-link:focus { top: 1rem; }
.landing { max-width: 1160px; padding: 0 2rem; }
.site-header { display: flex; align-items: center; flex-wrap: wrap; gap: 1.5rem; padding: 1.6rem 0; border-bottom: 1px solid var(--rule); }
.brand { display: inline-flex; align-items: center; gap: .65rem; font-weight: 750; font-size: 1.1rem; letter-spacing: -.03em; color: var(--fg); border: 0; }
.brand-mark { display: grid; place-items: center; width: 1.9rem; height: 1.9rem; background: var(--accent); color: var(--bg); }
.site-header nav { display: flex; gap: 1.2rem; font-size: .85rem; }
.site-header nav a { border: 0; color: var(--muted); padding: .25rem 0; }
.site-header .languages { margin-left: auto; gap: .8rem; }
.languages a[aria-current] { color: var(--fg); border-bottom: 2px solid var(--accent); }
.hero { display: grid; grid-template-columns: 1.5fr 1fr; gap: 4rem; align-items: center; padding: 6rem 0 5rem; }
.landing h1 { font-size: clamp(2.8rem, 5.5vw, 4.8rem); letter-spacing: -.055em; line-height: 1.04; margin-bottom: 1.6rem; }
.landing .lead { font-size: 1.1rem; max-width: 48ch; line-height: 1.65; }
.eyebrow { font: .72rem ui-monospace, monospace; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 1.5rem; }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1.5rem; font-size: .9rem; }
a.button { display: inline-flex; gap: 1.3rem; align-items: center; padding: .85rem 1.15rem; background: var(--accent); color: var(--bg); border: 0; font-weight: 650; }
.mission-example { border: 1px solid var(--rule); border-top: 3px solid var(--accent); background: var(--code-bg); padding: 1.5rem; min-width: 0; }
.example-caption { color: var(--muted); font-size: .78rem; border-bottom: 1px solid var(--rule); padding-bottom: 1rem; }
.record { padding: .6rem 0; }
.record span { color: var(--muted); font: .67rem ui-monospace, monospace; letter-spacing: .1em; }
.record p { font-size: .95rem; margin: .2rem 0 .5rem; }
.record-path { font: .72rem ui-monospace, monospace; color: var(--muted); margin: 1rem 0 0; overflow-wrap: anywhere; }
.split-section { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; padding: 4rem 0; border-top: 1px solid var(--rule); }
.landing h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); letter-spacing: -.04em; line-height: 1.15; margin: 0 0 1.4rem; }
.landing h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.split-section p, .task-section > p:not(.eyebrow), .install-section > p:not(.eyebrow), .contribute-section > p:not(.eyebrow) { color: var(--muted); font-size: .98rem; max-width: 65ch; }
.feature-rows article { display: flex; gap: 1.4rem; padding: 0 0 1.3rem; margin-bottom: 1.3rem; border-bottom: 1px solid var(--rule); }
.feature-rows article:last-child { border: 0; padding: 0; margin: 0; }
.step { font: .75rem ui-monospace, monospace; color: var(--accent); padding-top: .3rem; }
.feature-rows p { margin: 0; }
.task-section, .install-section, .contribute-section { border-top: 1px solid var(--rule); padding: 4rem 0; }
.prompt-tabs { display: flex; gap: .4rem; flex-wrap: wrap; margin: 1.8rem 0 0; }
.prompt-tabs button { background: transparent; border: 1px solid var(--rule); color: var(--muted); padding: .6rem 1rem; font-size: .85rem; }
.prompt-tabs button[aria-pressed=true] { color: var(--bg); background: var(--accent); border-color: var(--accent); }
.task-prompt { white-space: pre-wrap; overflow-wrap: anywhere; min-height: 9rem; border: 1px solid var(--rule); border-radius: 0; padding: 1.7rem; margin-bottom: 0; }
.task-prompt code { font-size: .9rem; line-height: 1.8; }
.evidence-section hr { margin: 1.8rem 0; }
.code-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 1rem; background: var(--code-bg); border: 1px solid var(--rule); padding: .65rem 1rem; margin-top: 1.5rem; font: .75rem ui-monospace, monospace; color: var(--muted); }
.code-toolbar button { border: 1px solid var(--rule); color: var(--fg); background: var(--bg); padding: .5rem .8rem; }
.install-code { margin-top: 0; border: 1px solid var(--rule); border-top: 0; border-radius: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.install-code code { font-size: .82rem; }
#copy-status { min-height: 1.5em; margin: 0; }
.landing footer { margin: 0; padding: 2rem 0; border-top: 1px solid var(--rule); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; align-items: center; }
.landing footer p { font-size: .75rem; color: var(--muted); margin: 0; }
body:not(.landing) { max-width: 80ch; }
body:not(.landing) table { display: block; overflow-x: auto; font-size: .88rem; }
.preview-note { border-left: 3px solid var(--accent); padding-left: 1rem; color: var(--muted); font-size: .85rem; }
@media (max-width: 760px) {
 .landing { padding: 0 1.25rem; }
 .site-header { gap: 1rem; }
 .site-header .languages { margin-left: 0; width: 100%; }
 .site-header nav { margin-left: auto; gap: .8rem; }
 .hero { grid-template-columns: 1fr; gap: 2.5rem; padding: 3.5rem 0; }
 .split-section { grid-template-columns: 1fr; gap: 2rem; }
 .split-section, .task-section, .install-section, .contribute-section { padding: 3rem 0; }
 .task-prompt { min-height: 14rem; padding: 1.2rem; }
 body:not(.landing) { padding: 2rem 1.25rem; }
}