:root {
  --ink: #1c1917;
  --muted: #57534e;
  --paper: #faf7f2;
  --card: #fffdf8;
  --line: #e7e0d6;
  --accent: #b45309;
  --accent-ink: #7c2d12;
  --code-bg: #1c1917;
  --code-fg: #f5f0e8;
  --top: #1c1917;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Segoe UI", "IBM Plex Sans", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}
.skip {
  position: absolute;
  left: -999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  background: #fff;
  padding: 0.4rem 0.7rem;
  z-index: 20;
}
.wrap {
  max-width: 52rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}
.top {
  background: var(--top);
  color: #faf7f2;
  position: sticky;
  top: 0;
  z-index: 10;
}
.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 3.25rem;
}
.brand {
  color: inherit;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: -0.02em;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  font-size: 0.9rem;
}
nav a {
  color: #e7e0d6;
  text-decoration: none;
}
nav a:hover { color: #fff; }
.hero { padding: 2.75rem 1.25rem 1.5rem; }
.kicker {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 0.75rem;
}
h1 {
  font-size: clamp(1.7rem, 4vw, 2.35rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}
h2 {
  font-size: 1.35rem;
  margin: 2.5rem 0 0.85rem;
  letter-spacing: -0.02em;
}
h3 {
  font-size: 1.05rem;
  margin: 1.6rem 0 0.6rem;
}
.lead { font-size: 1.08rem; color: var(--muted); margin: 0 0 1.1rem; }
.banner {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: var(--accent-ink);
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin: 0;
}
.guidelines {
  padding-left: 1.2rem;
}
.guidelines li { margin: 0.7rem 0; }
section.wrap { padding-bottom: 0.5rem; }
pre {
  position: relative;
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 1rem 3.4rem 1rem 1rem;
  overflow: auto;
  border-radius: 6px;
  font-size: 0.85rem;
  line-height: 1.45;
}
code {
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
}
p code, li code, td code {
  background: #efe8dc;
  padding: 0.08em 0.32em;
  border-radius: 3px;
}
pre code { background: none; padding: 0; font-size: 1em; color: inherit; }
.copy {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: #44403c;
  color: #faf7f2;
  border: 0;
  border-radius: 4px;
  padding: 0.25rem 0.55rem;
  cursor: pointer;
  font-size: 0.75rem;
}
.copy:hover { background: #57534e; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: var(--card);
}
th, td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  padding: 0.55rem 0.5rem;
}
th { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.note, footer {
  color: var(--muted);
  font-size: 0.92rem;
}
footer {
  border-top: 1px solid var(--line);
  margin-top: 2.5rem;
  padding: 1.5rem 1.25rem 2.5rem;
}
ul { padding-left: 1.2rem; }
li { margin: 0.35rem 0; }
@media (max-width: 640px) {
  .top-inner { flex-direction: column; align-items: flex-start; padding: 0.7rem 1.25rem; }
  nav { gap: 0.6rem; }
}