:root {
  --accent: oklch(58% 0.18 255);
  --dark-bg: oklch(13% 0.012 250);
  --dark-panel: oklch(17% 0.014 250);
  --dark-fg: oklch(94% 0.006 250);
  --dark-muted: oklch(68% 0.012 250);
  --dark-border: oklch(29% 0.014 250);
  --dark-line: oklch(25% 0.014 250);
  --terminal: oklch(9% 0.012 250);
  --accent-soft: oklch(58% 0.18 255 / 14%);
  --success: oklch(72% 0.15 150);
  --font-display:
    -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, sans-serif;
  --font-body:
    -apple-system, BlinkMacSystemFont, "SF Pro Text", system-ui, sans-serif;
  --mono:
    "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", ui-monospace, Menlo,
    monospace;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(
      circle at 50% -10%,
      oklch(24% 0.04 255 / 34%),
      transparent 34rem
    ),
    linear-gradient(
      180deg,
      oklch(13% 0.012 250),
      oklch(11% 0.012 250) 48rem,
      oklch(14% 0.012 250)
    );
  color: var(--dark-fg);
  font-family: var(--font-body);
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration: none;
}

code,
pre {
  font-family: var(--mono);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.page {
  min-height: 100vh;
  overflow: hidden;
}

.shell {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid oklch(100% 0 0 / 8%);
  background: oklch(13% 0.012 250 / 78%);
  backdrop-filter: blur(18px);
}

.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand,
.navlinks,
.nav-actions,
.actions,
.footer-inner,
.footer-links {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-size: 17px;
  font-weight: 650;
}

.mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--dark-border);
  border-radius: 7px;
  background: linear-gradient(
    180deg,
    oklch(22% 0.018 250),
    oklch(15% 0.014 250)
  );
  color: var(--accent);
  font-family: var(--mono);
  font-size: 13px;
  overflow: hidden;
}

.mark img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.navlinks {
  gap: 6px;
  color: var(--dark-muted);
  font-size: 14px;
}

.navlinks a {
  padding: 9px 11px;
  border-radius: 8px;
}

.navlinks a:hover,
.navlinks a.active {
  color: var(--dark-fg);
  background: oklch(100% 0 0 / 5%);
}

.nav-actions,
.actions {
  gap: 10px;
}

.btn {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--dark-border);
  border-radius: 8px;
  padding: 0 14px;
  color: var(--dark-fg);
  background: oklch(100% 0 0 / 4%);
  font-size: 14px;
  font-weight: 560;
}

.btn.primary {
  border-color: oklch(58% 0.18 255 / 70%);
  background: var(--accent);
  color: oklch(8% 0.012 250);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(340px, 0.62fr);
  gap: 52px;
  align-items: end;
  padding: 70px 0 58px;
}

.eyebrow,
.kicker {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  gap: 9px;
  align-items: center;
  margin-bottom: 22px;
  padding: 7px 10px;
  border: 1px solid var(--dark-border);
  border-radius: 999px;
  background: oklch(100% 0 0 / 4%);
  color: var(--dark-muted);
  text-transform: none;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px var(--accent);
}

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-family: var(--font-display);
  font-size: clamp(48px, 7vw, 96px);
  line-height: 0.95;
  letter-spacing: 0;
  text-wrap: balance;
}

.lead {
  max-width: 680px;
  margin-bottom: 28px;
  color: var(--dark-muted);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.55;
}

.hero-card,
.panel,
.terminal,
.callout,
.next-card {
  border: 1px solid var(--dark-border);
  border-radius: 12px;
  background: var(--dark-panel);
}

.hero-card {
  padding: 18px;
}

.rule-list {
  display: grid;
  gap: 13px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.rule-list li {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 13px;
  border-bottom: 1px solid var(--dark-border);
  color: var(--dark-muted);
  line-height: 1.5;
}

.rule-list li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.rule-list code,
.side-nav a.active,
.prompt,
.ok {
  color: var(--accent);
}

.layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 180px;
  gap: 34px;
  align-items: start;
  padding: 40px 0 90px;
}

.side-nav,
.toc {
  position: sticky;
  top: 92px;
  padding: 16px;
  border: 1px solid var(--dark-border);
  border-radius: 12px;
  background: oklch(100% 0 0 / 3%);
}

.toc {
  border-color: transparent;
  background: transparent;
}

.side-label {
  margin-bottom: 12px;
  color: var(--dark-muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}

.side-nav a,
.toc a {
  display: block;
  border-radius: 7px;
  color: var(--dark-muted);
  font-size: 14px;
}

.side-nav a {
  padding: 9px 10px;
}

.toc a {
  margin-bottom: 11px;
  font-size: 13px;
}

.side-nav a.active {
  background: var(--accent-soft);
}

.content {
  min-width: 0;
}

.content section {
  padding: 0 0 58px;
  border-bottom: 1px solid oklch(100% 0 0 / 7%);
  margin-bottom: 58px;
}

.content section:last-child {
  margin-bottom: 0;
  border-bottom: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(32px, 4vw, 58px);
  line-height: 1;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.content p {
  color: var(--dark-muted);
  line-height: 1.65;
}

.terminal {
  overflow: hidden;
  background: var(--terminal);
  box-shadow: 0 24px 70px oklch(0% 0 0 / 26%);
}

.terminal-head {
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 0 16px;
  border-bottom: 1px solid var(--dark-line);
  background: linear-gradient(
    180deg,
    oklch(20% 0.014 250),
    oklch(15% 0.014 250)
  );
  color: var(--dark-muted);
  font-family: var(--mono);
  font-size: 12px;
}

.lights {
  display: flex;
  gap: 7px;
}

.lights i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.lights i:nth-child(1) {
  background: oklch(65% 0.18 28);
}

.lights i:nth-child(2) {
  background: oklch(78% 0.14 82);
}

.lights i:nth-child(3) {
  background: oklch(72% 0.15 150);
}

pre {
  margin: 0;
  overflow-x: auto;
  padding: 22px;
  color: oklch(90% 0.006 250);
  font-size: 14px;
  line-height: 1.75;
}

.dim {
  color: var(--dark-muted);
}

.comment {
  color: oklch(57% 0.018 250);
}

.callout {
  margin: 20px 0;
  padding: 16px;
  border-color: oklch(58% 0.18 255 / 32%);
  background: var(--accent-soft);
  color: oklch(86% 0.05 255);
  line-height: 1.55;
}

.support-note {
  margin-top: 14px;
  color: var(--dark-muted);
  font-size: 14px;
  line-height: 1.5;
}

.grid-2,
.grid-3,
.next-grid {
  display: grid;
  gap: 14px;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3,
.next-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.panel,
.next-card {
  padding: 18px;
  background: oklch(100% 0 0 / 3%);
}

.panel p,
.next-card p {
  margin-bottom: 0;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--dark-border);
  border-radius: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--dark-border);
  text-align: left;
  vertical-align: top;
}

tr:last-child td {
  border-bottom: 0;
}

th {
  color: var(--dark-muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}

td {
  color: var(--dark-fg);
}

td code,
.content code {
  color: var(--accent);
}

.next {
  padding: 0 0 90px;
}

.next-card strong {
  display: block;
  margin-bottom: 8px;
}

footer {
  padding: 34px 0 54px;
  border-top: 1px solid oklch(100% 0 0 / 7%);
  color: var(--dark-muted);
}

.footer-inner {
  justify-content: space-between;
  gap: 20px;
  font-size: 14px;
}

.footer-links {
  gap: 18px;
}

@media (max-width: 980px) {
  .hero,
  .layout,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .toc {
    display: none;
  }

  .side-nav {
    position: static;
  }

  .grid-3,
  .next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 740px) {
  .shell {
    width: min(100% - 28px, var(--max));
  }

  .nav {
    align-items: flex-start;
    padding: 14px 0;
  }

  .navlinks {
    display: none;
  }

  .nav-actions .btn:not(.primary) {
    display: none;
  }

  .hero {
    padding: 58px 0 42px;
  }

  h1 {
    font-size: clamp(46px, 15vw, 76px);
  }

  .layout {
    padding-top: 24px;
  }

  .grid-3,
  .next-grid {
    grid-template-columns: 1fr;
  }

  pre {
    font-size: 12px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    flex-wrap: wrap;
  }
}