:root { color-scheme: light; --fundo: #ffffff; --texto: #17202a; --link: #0054a6; --borda: #6b7280; }
:root[data-theme="dark"] { color-scheme: dark; --fundo: #171c23; --texto: #e5eaf0; --link: #8fc7ff; --borda: #929eab; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) { color-scheme: dark; --fundo: #171c23; --texto: #e5eaf0; --link: #8fc7ff; --borda: #929eab; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--fundo); color: var(--texto); font: 1rem/1.6 system-ui, sans-serif; }
header, main, footer { padding: 1.25rem clamp(1rem, 3vw, 3rem); }
header, footer { border-block-end: 1px solid var(--borda); }
header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
main { min-height: 65vh; }
a { color: var(--link); overflow-wrap: anywhere; }
li { padding: .55rem 0; }
pre { white-space: pre-wrap; overflow-wrap: anywhere; border: 1px solid var(--borda); padding: 1rem; font-size: 1rem; }
nav, footer { display: flex; flex-wrap: wrap; gap: .75rem; }
button { min-height: 44px; background: var(--fundo); color: var(--texto); border: 1px solid var(--borda); padding: .5rem; cursor: pointer; }
:focus-visible { outline: 3px solid var(--link); outline-offset: 3px; }
h1 { font-size: clamp(1.5rem, 4vw, 2.2rem); overflow-wrap: anywhere; }
dl { display: grid; grid-template-columns: minmax(8rem, 15rem) minmax(0, 1fr); gap: .5rem 1rem; }
dt { font-weight: 600; }
dd { margin: 0; overflow-wrap: anywhere; }
section { border: 1px solid var(--borda); padding: 1rem; margin-block: 1rem; }
ol { padding-left: 1.25rem; }
@media (max-width: 600px) { dl { grid-template-columns: minmax(0, 1fr); } dd { margin-bottom: .75rem; } }
.guia { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1rem; }
.guia section { min-width: 0; }
article + article { border-top: 1px solid var(--borda); }
code { overflow-wrap: anywhere; }
@media (max-width: 850px) { .guia { grid-template-columns: minmax(0, 1fr); gap: 0; } }