/* System fonts keep the guide readable without third-party requests. */
:root { color-scheme: light dark; --paper: #faf9f6; --ink: #202f32; --muted: #526568; --accent: #245f5b; --line: #d9e2df; --tint: #e8f0ec; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 1rem/1.7 system-ui, sans-serif; }
a { color: var(--accent); text-underline-offset: .18em; }
a:hover { text-decoration-thickness: .15em; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 2px; }
header, footer, .page { max-width: 1120px; margin: auto; padding: 1.5rem 2rem; }
header { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { color: var(--ink); font-size: 1.8rem; font-weight: 750; text-decoration: none; letter-spacing: -.05em; }
.page { display: grid; grid-template-columns: 190px minmax(0, 1fr); gap: 3.5rem; padding-top: 3rem; padding-bottom: 4rem; }
nav.guide-nav { display: flex; flex-direction: column; align-self: start; gap: .35rem; position: sticky; top: 1.5rem; }
nav.guide-nav a { padding: .4rem .7rem; text-decoration: none; border-radius: .4rem; }
nav.guide-nav a[aria-current] { background: var(--tint); font-weight: 650; }
main { max-width: 740px; min-width: 0; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.03em; }
h1 { margin: 0 0 1.5rem; font-size: clamp(2rem, 4vw, 3.2rem); }
h2 { margin-top: 2.4rem; font-size: 1.5rem; scroll-margin-top: 1.5rem; }
p, ul, ol { margin: 1rem 0; }
li { margin: .5rem 0; }
blockquote { margin: 1.5rem 0; padding: .25rem 1.25rem; border-left: 3px solid var(--accent); background: var(--tint); }
table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; }
th, td { border-bottom: 1px solid var(--line); padding: .75rem; text-align: left; vertical-align: top; }
th { background: var(--tint); }
code { font-size: .9em; overflow-wrap: anywhere; }
pre { padding: 1rem; overflow: auto; background: var(--tint); border-radius: .5rem; }
footer { border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; color: var(--muted); font-size: .85rem; }
footer span { margin-right: auto; }
.skip { position: absolute; left: 1rem; top: -5rem; background: var(--paper); padding: .7rem; }
.skip:focus { top: 1rem; }
@media (max-width: 720px) {
  header, footer, .page { padding-left: 1.25rem; padding-right: 1.25rem; }
  .page { display: block; padding-top: 1rem; }
  nav.guide-nav { position: static; flex-direction: row; flex-wrap: wrap; gap: .2rem; margin-bottom: 2rem; font-size: .9rem; }
  th, td { padding: .5rem; }
}
@media (prefers-color-scheme: dark) {
  :root { --paper: #162023; --ink: #e4efeb; --muted: #b0c3bd; --accent: #99d4c3; --line: #354946; --tint: #243733; }
}

.language-switcher { position: relative; font-size: .9rem; }
.language-switcher summary { display: flex; align-items: center; gap: .5rem; padding: .5rem .75rem; cursor: pointer; list-style: none; border: 1px solid var(--line); border-radius: .4rem; }
.language-switcher summary::-webkit-details-marker { display: none; }
.language-switcher summary::after { content: ""; width: .45rem; height: .45rem; margin-left: .4rem; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: translateY(-.15rem) rotate(45deg); }
.language-switcher summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.language-switcher[open] summary { background: var(--tint); }
.language-switcher nav { position: absolute; z-index: 2; right: 0; top: calc(100% + .5rem); min-width: 100%; width: max-content; padding: .35rem; background: var(--paper); border: 1px solid var(--line); border-radius: .4rem; box-shadow: 0 .5rem 1.5rem #0003; }
.language-switcher nav button { display: flex; align-items: center; gap: .5rem; padding: .5rem .75rem; border-radius: .25rem; text-decoration: none; }
.language-switcher [aria-pressed="true"] { font-weight: 700; }
header { gap: 1rem; flex-wrap: wrap; }

nav.guide-nav h2 { margin: 1.2rem .7rem .3rem; font-size: .85rem; letter-spacing: 0; color: var(--muted); }
nav.guide-nav h2:first-child { margin-top: 0; }
@media (max-width: 720px) {
  nav.guide-nav h2 { flex-basis: 100%; margin-top: 1rem; }
}

.language-switcher[hidden] { display: none; }
.language-switcher nav button { width: 100%; border: 0; background: transparent; color: var(--accent); font: inherit; text-align: left; cursor: pointer; }
.language-switcher nav button:focus-visible { outline: 3px solid var(--accent); outline-offset: 1px; }
.language-switcher nav button:hover, .language-switcher nav button[aria-pressed="true"] { background: var(--tint); }

.brand { display: inline-flex; align-items: center; gap: .5rem; }
.brand img { border-radius: .5rem; }
.home-banner { display: block; width: 100%; height: auto; margin: 0 0 1.5rem; border-radius: .6rem; }