:root {
  --ink: #111827;
  --muted: #4b5563;
  --line: #e5e7eb;
  --bg: #f8fafc;
  --card: #ffffff;
  --brand: #4f46e5;
  --brand-2: #7c3aed;
  --accent: #fbbf24;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, sans-serif;
  line-height: 1.65;
}

a { color: var(--brand); }

a:hover { color: var(--brand-2); }

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .wrap,
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
}

.brand img {
  width: 32px;
  height: 32px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  font-size: 0.92rem;
}

nav a { text-decoration: none; color: var(--muted); }

nav a:hover,
nav a[aria-current="page"] { color: var(--brand); font-weight: 600; }

article { padding: 2.25rem 0 3rem; }

h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin: 0 0 0.75rem;
}

h2 {
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  margin: 2rem 0 0.7rem;
}

p { margin: 0 0 1rem; color: #1f2937; }

.lede { font-size: 1.12rem; color: var(--muted); }

.cta {
  display: inline-block;
  margin: 0.25rem 0 1.25rem;
  padding: 0.7rem 1.1rem;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff !important;
  text-decoration: none;
  font-weight: 700;
}

.cta:hover { filter: brightness(1.05); }

pre, .example {
  background: #0f172a;
  color: #e2e8f0;
  padding: 1rem 1.1rem;
  border-radius: 12px;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.5;
}

code { font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace; }

p code, li code {
  background: #eef2ff;
  color: #3730a3;
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  font-size: 0.9em;
}

ul { padding-left: 1.2rem; }

li { margin: 0.35rem 0; }

.related {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.15rem;
  margin-top: 2rem;
}

.related h2 { margin-top: 0; }

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--card);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer a { color: var(--muted); text-decoration: none; }

.site-footer a:hover { color: var(--brand); }