:root {
  color-scheme: light dark;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  --background: #fff;
  --foreground: #111;
  --muted: #4b5563;
  --border: #e5e7eb;
  --code-background: #f9fafb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #0b0b0d;
    --foreground: #f9fafb;
    --muted: #d1d5db;
    --border: #202024;
    --code-background: #0d0d0f;
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --background: #fff;
  --foreground: #111;
  --muted: #4b5563;
  --border: #e5e7eb;
  --code-background: #f9fafb;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --background: #0b0b0d;
  --foreground: #f9fafb;
  --muted: #d1d5db;
  --border: #202024;
  --code-background: #0d0d0f;
}

* { box-sizing: border-box; }

html { background: var(--background); }

body {
  margin: 0;
  min-width: 320px;
  color: var(--foreground);
  background: var(--background);
}

a { color: inherit; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 2;
  padding: .5rem;
  background: var(--background);
}
.skip-link:focus { top: .5rem; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 48px;
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
}

.brand img { filter: brightness(0); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .brand img { filter: brightness(0) invert(1); }
}
:root[data-theme="dark"] .brand img { filter: brightness(0) invert(1); }

.theme-toggle {
  width: 32px;
  height: 32px;
  border: 0;
  color: var(--foreground);
  background: transparent;
  cursor: pointer;
  font-size: 1.15rem;
}
.theme-toggle::before { content: "☾"; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle::before { content: "☀"; }
}
:root[data-theme="dark"] .theme-toggle::before { content: "☀"; }

main {
  max-width: 752px;
  margin: 48px auto 64px;
  padding: 0 24px;
}

.eyebrow {
  margin: 0 0 8px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--foreground);
}

h1 {
  margin: 0 0 24px;
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -.025em;
  line-height: 1.15;
}

h2 {
  margin: 32px 0 16px;
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.3;
}

main p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.7;
}

main p a { color: var(--foreground); font-weight: 600; }
main p strong { color: var(--foreground); }

.code-block {
  position: relative;
  margin: 20px 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--code-background);
}

pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  font-size: .875rem;
  line-height: 1.6;
}

code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.copy-button {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px;
  border: 0;
  color: var(--muted);
  background: var(--code-background);
  cursor: pointer;
  font-size: 1rem;
}

.explore-link { display: inline-block; margin-top: 4px; }

@media (max-width: 640px) {
  .site-header { height: 64px; padding: 0 16px; }
  main { margin-top: 40px; padding: 0 16px; }
  h1 { font-size: 2.5rem; }
  h2 { font-size: 1.5rem; }
}