:root {
  --bg: #ffffff;
  --panel: #fafafa;
  --panel-strong: #f5f5f5;
  --ink: #0f0f10;
  --muted: #5f6368;
  --line: #e8e8e8;
  --line-strong: #d8d8d8;
  --accent: #111111;
  --font-sans: "Instrument Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --max-width: 72rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
  text-decoration-color: rgba(17, 17, 17, 0.22);
  text-underline-offset: 0.2em;
}

a:hover,
a:focus-visible {
  text-decoration-color: currentColor;
}

code,
pre,
.eyebrow,
.nav,
.hero-facts,
.preview-shell,
.command-label,
.file-name,
.footer {
  font-family: var(--font-mono);
}

code {
  padding: 0.08rem 0.32rem;
  background: var(--panel-strong);
  border-radius: 0.35rem;
  font-size: 0.94em;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 20;
  padding: 0.6rem 0.8rem;
  background: var(--bg);
  border: 1px solid var(--line-strong);
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.header-inner,
.hero,
.section,
.footer,
.not-found {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.25rem;
}

.brand {
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.9rem;
}

.nav a {
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  gap: 4rem;
  align-items: start;
  padding: 6rem 0 5rem;
}

.eyebrow,
.panel-kicker,
.command-label,
.file-name {
  margin: 0 0 0.85rem;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1,
h2 {
  letter-spacing: -0.06em;
  line-height: 0.98;
}

h1 {
  margin-bottom: 1.3rem;
  font-size: clamp(3.4rem, 8vw, 6.4rem);
  max-width: 10ch;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  max-width: 14ch;
}

h3 {
  margin-bottom: 0.55rem;
  font-size: 1.08rem;
  line-height: 1.25;
}

.lede {
  max-width: 34rem;
  margin-bottom: 0;
  font-size: 1.12rem;
  color: #2e3136;
}

.hero-actions,
.not-found-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.75rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.7rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  text-decoration: none;
  transition:
    background-color 150ms ease,
    color 150ms ease,
    border-color 150ms ease;
}

.button:hover,
.button:focus-visible {
  border-color: var(--ink);
}

.button-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #000000;
  color: #ffffff;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.25rem;
  margin: 2rem 0 0;
  padding: 1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

.hero-preview {
  min-width: 0;
}

.preview-shell {
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 1rem;
  background: var(--panel);
}

.preview-top,
.preview-tabs {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1rem;
  border-bottom: 1px solid var(--line);
}

.preview-path,
.preview-note {
  font-size: 0.85rem;
}

.preview-note {
  color: var(--muted);
}

.preview-tabs {
  justify-content: flex-start;
  flex-wrap: wrap;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
}

.preview-tab {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
}

.preview-tab:hover,
.preview-tab:focus-visible,
.preview-tab.is-active {
  color: var(--ink);
}

.preview-body {
  min-height: 19rem;
  padding: 1.3rem 1rem 1rem;
}

.preview-panel {
  display: none;
}

.preview-panel.is-active {
  display: block;
}

.preview-lead {
  max-width: 22rem;
  margin-bottom: 1.5rem;
  font-size: 1.55rem;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.preview-data {
  display: grid;
  gap: 1rem;
  margin: 0;
}

.preview-data div {
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
}

.preview-data dt {
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.preview-data dd {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.5;
}

.code-view {
  overflow-x: auto;
  margin: 0;
  padding: 1rem;
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  font-size: 0.88rem;
  line-height: 1.65;
}

.meta {
  color: var(--muted);
}

.add {
  color: #1e7c45;
}

.section {
  padding: 4.4rem 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2.4rem;
}

.value-grid,
.file-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

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

.value-card,
.file-card {
  padding-top: 1rem;
  border-top: 1px solid var(--line-strong);
}

.value-card p,
.file-card p,
.faq-item p,
.steps p {
  color: #35393f;
}

.steps {
  display: grid;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-strong);
}

.step-number {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.94rem;
}

.command-panel {
  border-top: 1px solid var(--line-strong);
}

.command-row {
  display: grid;
  grid-template-columns: 11rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.command-row p {
  margin: 0;
}

.command-row code {
  margin-right: 0.4rem;
}

.faq-list {
  display: grid;
  gap: 1.3rem;
}

.faq-item {
  padding-top: 1rem;
  border-top: 1px solid var(--line-strong);
}

.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem 1.5rem;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
  color: var(--muted);
}

.footer p {
  margin: 0;
}

.footer span {
  margin: 0 0.45rem;
}

.not-found {
  padding: 6rem 0;
}

.not-found-shell {
  max-width: 36rem;
}

.not-found-shell p:last-of-type {
  color: #35393f;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .value-grid,
  .file-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    position: static;
  }

  .header-inner,
  .command-row,
  .steps li {
    grid-template-columns: 1fr;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.85rem 0;
  }

  h1 {
    font-size: clamp(2.8rem, 14vw, 4.25rem);
  }

  .hero,
  .section {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .preview-body {
    min-height: auto;
  }

  .command-row {
    gap: 0.45rem;
  }
}