:root {
  color-scheme: light;
  --paper: #f5f7f6;
  --surface: #ffffff;
  --ink: #172238;
  --muted: #58616d;
  --line: #d7dcda;
  --accent: #0b6f72;
  --code: #111827;
  --code-ink: #e9edf5;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
}
a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}
a:hover { color: #064d50; }
a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}
.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  padding: 0.55rem 0.8rem;
  background: var(--ink);
  color: #fff;
  transform: translateY(-180%);
}
.skip-link:focus { transform: none; }
main, footer {
  width: min(980px, calc(100% - 40px));
  margin-inline: auto;
}
.introduction { padding: 4.5rem 0 4rem; }
.title-block {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.vev-icon-crop {
  position: relative;
  flex: 0 0 88px;
  width: 88px;
  height: 112px;
  overflow: hidden;
}
.vev-icon-crop img {
  position: absolute;
  top: -58px;
  left: -48px;
  width: 296px;
  max-width: none;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2 {
  font-family: var(--serif);
  font-weight: 400;
}
h1 {
  margin-bottom: 0.15rem;
  font-size: clamp(3.2rem, 8vw, 5rem);
  line-height: 1;
}
.title-block p {
  margin: 0;
  color: var(--muted);
  font-family: var(--serif);
  font-size: clamp(1.15rem, 2.8vw, 1.55rem);
}
.intro-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 3.5rem;
  align-items: start;
}
.intro-copy p { margin-bottom: 1rem; }
.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.code-example {
  overflow: hidden;
  border: 1px solid #263348;
  border-radius: 3px;
  background: var(--code);
  color: var(--code-ink);
}
.code-label {
  padding: 0.55rem 0.9rem;
  border-bottom: 1px solid #2c394d;
  color: #a5afbf;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
}
pre {
  margin: 0;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
.code-example pre {
  padding: 1.3rem;
  font-size: 0.76rem;
  line-height: 1.7;
}
.syntax-form, .terminal span { color: #6bd1d3; }
.syntax-string { color: #bdd983; }
.section {
  padding: 3.4rem 0;
  border-top: 1px solid var(--line);
}
h2 {
  margin-bottom: 1.6rem;
  font-size: 2rem;
  line-height: 1.2;
}
h3 {
  margin-bottom: 0.45rem;
  font-size: 1.02rem;
}
.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  column-gap: 3.5rem;
  row-gap: 2rem;
}
.topic-grid p {
  margin-bottom: 0;
  color: var(--muted);
}
.two-column-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
}
.two-column-section p { color: var(--muted); }
.terminal {
  align-self: center;
  padding: 1.25rem;
  background: var(--code);
  color: var(--code-ink);
  font-size: 0.8rem;
  line-height: 1.9;
}
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  text-align: left;
}
th, td {
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
}
th {
  background: #eaf0ee;
  font-size: 0.85rem;
}
td { font-size: 0.92rem; }
.docs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
}
.docs-grid a {
  display: block;
  padding: 1rem 1rem 1rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.docs-grid a:nth-child(even) {
  padding-left: 1.5rem;
  border-left: 1px solid var(--line);
}
.docs-grid strong, .docs-grid span { display: block; }
.docs-grid span {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.88rem;
}
footer {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 2.5rem;
  padding: 3rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}
.footer-intro strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--ink);
  font-family: var(--serif);
  font-size: 1.4rem;
}
.footer-intro p {
  max-width: 15rem;
  margin: 0;
}
footer h2 {
  margin-bottom: 0.65rem;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
footer ul {
  margin: 0;
  padding: 0;
  list-style: none;
}
footer li { margin-bottom: 0.35rem; }
.footer-meta {
  display: flex;
  grid-column: 1 / -1;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: 0.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
}

@media (max-width: 760px) {
  .intro-grid, .two-column-section {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .topic-grid { grid-template-columns: 1fr; }
  footer { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) {
  main, footer { width: min(100% - 28px, 980px); }
  .title-block {
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
  }
  .vev-icon-crop {
    flex-basis: 58px;
    width: 58px;
    height: 74px;
  }
  .vev-icon-crop img {
    top: -38px;
    left: -32px;
    width: 195px;
  }
  .introduction { padding: 3rem 0; }
  .docs-grid { grid-template-columns: 1fr; }
  .docs-grid a:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }
  footer {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .footer-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.35rem;
  }
}

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