/* Site oficial da StrongLinux: tokens de cor com modo escuro automático */
:root {
  --bg: #f5f7fa; --panel: #ffffff; --fg: #141b26; --muted: #556072; --line: #dde3ea;
  --accent: #1463c8; --accent-fg: #ffffff; --accent-soft: #e6effb; --ok: #1f7a4f;
  --hero-bg: #070d1c; --hero-fg: #eef3ff; --hero-muted: #a9b8d6; --hero-line: #22345c; --glow: #2f8cff;
  --term-bg: #0d1117; --term-fg: #d8dee9; --term-prompt: #5fd39c;
  --nota-bg: #fff6e5; --nota-line: #e8b14a;
  --sans: system-ui, -apple-system, "Segoe UI", Ubuntu, Cantarell, "Noto Sans", sans-serif;
  --mono: ui-monospace, "Ubuntu Mono", "DejaVu Sans Mono", Menlo, Consolas, monospace;
  --raio: 10px; --largura: 1120px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b111b; --panel: #121a27; --fg: #e6ecf5; --muted: #9eabbf; --line: #243044;
    --accent: #5ea2ff; --accent-fg: #06101f; --accent-soft: #14233b; --ok: #5fd39c;
    --nota-bg: #2a2110; --nota-line: #b98a2e;
    color-scheme: dark;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.6 var(--sans); }
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
code { font-family: var(--mono); font-size: .9em; background: var(--accent-soft); padding: .1em .35em; border-radius: 4px; overflow-wrap: anywhere; }
pre { background: var(--term-bg); color: var(--term-fg); padding: 1rem 1.1rem; border-radius: var(--raio); overflow-x: auto; line-height: 1.5; }
pre code { background: none; padding: 0; color: inherit; font-size: .88rem; overflow-wrap: normal; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -.01em; }
h2 { font-size: 1.6rem; margin: 2.4rem 0 .8rem; }
h3 { font-size: 1.15rem; margin: 0 0 .4rem; }
.faixa { max-width: var(--largura); margin: 0 auto; padding: 0 16px; }
.pular { position: absolute; left: -999px; }
.pular:focus { left: 16px; top: 8px; z-index: 10; background: var(--panel); padding: .5rem 1rem; }

/* Topo */
.topo { background: var(--hero-bg); color: var(--hero-fg); border-bottom: 1px solid var(--hero-line); position: sticky; top: 0; z-index: 5; }
.topo .faixa { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 60px; flex-wrap: wrap; }
.marca { display: flex; align-items: center; gap: .55rem; color: var(--hero-fg); text-decoration: none; font-weight: 700; font-size: 1.15rem; }
.topo nav { display: flex; gap: .2rem; flex-wrap: wrap; }
.topo nav a { color: var(--hero-muted); text-decoration: none; padding: .45rem .7rem; border-radius: 6px; font-size: .95rem; }
.topo nav a:hover { color: var(--hero-fg); background: #ffffff14; }
.topo nav a[aria-current] { color: var(--hero-fg); background: #ffffff1f; }

/* Herói */
.heroi { background: radial-gradient(1100px 500px at 75% 10%, #12306a 0%, transparent 60%), var(--hero-bg); color: var(--hero-fg); padding: 4rem 0 4.5rem; }
.heroi-grade { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3rem; align-items: center; }
.heroi h1 { font-size: clamp(1.9rem, 3.4vw, 2.55rem); margin: .4rem 0 1rem; }
.heroi .lead { color: var(--hero-muted); font-size: 1.12rem; }
.heroi strong { color: var(--hero-fg); }
.selo { display: inline-block; margin: 0; padding: .25rem .7rem; border: 1px solid var(--hero-line); border-radius: 999px; color: var(--hero-muted); font-size: .85rem; }
.tela { margin: 0; }
.tela img { display: block; border-radius: 12px; border: 1px solid var(--hero-line); box-shadow: 0 20px 60px #000a, 0 0 0 1px #2f8cff22, 0 0 80px #2f8cff33; }
.tela figcaption { color: var(--hero-muted); font-size: .85rem; margin-top: .6rem; text-align: center; }
.acoes { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 1.6rem; }
.botao { display: inline-block; padding: .7rem 1.15rem; border-radius: 8px; border: 1px solid var(--line); color: var(--fg); background: var(--panel); text-decoration: none; font-weight: 600; }
.heroi .botao { background: transparent; color: var(--hero-fg); border-color: var(--hero-line); }
.botao:hover { border-color: var(--accent); }
.botao.primario, .heroi .botao.primario { background: var(--glow); border-color: var(--glow); color: #fff; }
.botao.primario:hover { filter: brightness(1.1); }

/* Seções */
.edicoes { padding-bottom: 1rem; }
.grade-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.grade-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem 2rem; }
.cartao { background: var(--panel); border: 1px solid var(--line); border-radius: var(--raio); padding: 1.5rem; display: flex; flex-direction: column; }
.cartao h3 { font-size: 1.35rem; }
.cartao .botao { margin-top: auto; align-self: flex-start; }
.lista-ok { padding: 0; list-style: none; margin: .5rem 0 1.4rem; }
.lista-ok li { padding-left: 1.5rem; position: relative; margin: .4rem 0; }
.lista-ok li::before { content: "✓"; position: absolute; left: 0; color: var(--ok); font-weight: 700; }
.banda { background: var(--panel); border-block: 1px solid var(--line); padding: 1rem 0 3rem; margin-top: 3rem; }
.banda p { color: var(--muted); margin: 0; }
.comeco { padding-bottom: 3.5rem; }
.terminal .p { color: var(--term-prompt); user-select: none; }

/* Páginas internas */
.cabeca { background: var(--hero-bg); color: var(--hero-fg); padding: 2.5rem 0 2.2rem; }
.cabeca h1 { font-size: clamp(1.8rem, 3.5vw, 2.4rem); margin: 0 0 .5rem; }
.cabeca .lead { color: var(--hero-muted); margin: 0; max-width: 70ch; }
.cabeca a { color: #9cc4ff; }
.trilha { margin: 0 0 .4rem; font-size: .9rem; }
.conteudo { padding-top: 1rem; padding-bottom: 4rem; }
.conteudo > p, .conteudo > ul, .conteudo > ol, .doc p, .doc li { max-width: 78ch; }
.doc h2 { border-top: 1px solid var(--line); padding-top: 1.6rem; }
.doc h2:first-child { border-top: 0; }
.nota { background: var(--nota-bg); border-left: 4px solid var(--nota-line); padding: .8rem 1rem; border-radius: 6px; margin: 1.5rem 0; max-width: 78ch; }
.tabela { overflow-x: auto; margin: 1rem 0 1.4rem; border: 1px solid var(--line); border-radius: var(--raio); background: var(--panel); }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
th, td { text-align: left; padding: .65rem .9rem; border-bottom: 1px solid var(--line); vertical-align: top; }
tbody tr:last-child td { border-bottom: 0; }
th { font-size: .82rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); background: var(--bg); }
td.num, th.num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
td a { font-weight: 600; overflow-wrap: anywhere; }
.desc { color: var(--muted); font-size: .88rem; }
.hash { white-space: nowrap; }
.colunas { columns: 3 12rem; }
.guias { list-style: none; padding: 0; display: grid; gap: .8rem; max-width: 78ch; }
.guias li { background: var(--panel); border: 1px solid var(--line); border-radius: var(--raio); padding: 1rem 1.2rem; }
.guias a { font-weight: 700; font-size: 1.08rem; display: block; }
.guias span { color: var(--muted); }

/* Rodapé */
.rodape { background: var(--hero-bg); color: var(--hero-muted); padding: 2rem 0; font-size: .92rem; }
.rodape strong { color: var(--hero-fg); }
.rodape .links { display: flex; gap: 1.2rem; flex-wrap: wrap; margin: .8rem 0; }
.rodape a { color: #9cc4ff; }
.rodape .miudo { font-size: .8rem; opacity: .8; }

@media (max-width: 860px) {
  .heroi-grade, .grade-2 { grid-template-columns: 1fr; }
  .grade-3 { grid-template-columns: 1fr; }
  .heroi { padding: 2.5rem 0 3rem; }
  .col-hash { display: none; }
}

/* Seletor de idioma */
.topo .idiomas { gap: 0; border: 1px solid var(--hero-line); border-radius: 7px; overflow: hidden; }
.topo .idiomas a { border-radius: 0; font-size: .82rem; padding: .3rem .55rem; }
.topo .idiomas a + a { border-left: 1px solid var(--hero-line); }
.topo .faixa > nav:first-of-type { margin-left: auto; }