/* Estilo do site de documentação. Cores e tipografia do conteúdo em si
   (headings, código, tabelas, alertas...) vêm de @markup/renderer/document.css
   — este arquivo só cuida da "casca" do site: cabeçalho, sumário lateral,
   layout, e o playground. Nada aqui redefine uma cor que document.css já
   define; tudo usa as mesmas variáveis --mu-*, para o site parecer parte do
   mesmo produto que ele documenta. */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--mu-bg);
  color: var(--mu-text);
  font-family: var(--font-sans);
}

a {
  color: var(--mu-accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* ---------------------------------------------------------------------
   Cabeçalho
   --------------------------------------------------------------------- */

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

.site-header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0.85em 1.5em;
  display: flex;
  align-items: center;
  gap: 2em;
}

.site-logo {
  font-weight: 700;
  font-size: 1.05em;
  color: var(--mu-text);
  letter-spacing: -0.01em;
}
.site-logo:hover {
  text-decoration: none;
  color: var(--mu-accent);
}

.site-nav {
  display: flex;
  gap: 1.5em;
  flex: 1;
}
.site-nav a {
  color: var(--mu-text-muted);
  font-size: 0.92em;
}
.site-nav a:hover,
.site-nav a[aria-current='page'] {
  color: var(--mu-text);
  text-decoration: none;
}

.site-header-actions {
  display: flex;
  align-items: center;
  gap: 1em;
}

.theme-toggle {
  border: 1px solid var(--mu-border);
  background: none;
  color: var(--mu-text-muted);
  border-radius: 6px;
  width: 2em;
  height: 2em;
  cursor: pointer;
  font-size: 0.95em;
  line-height: 1;
}
.theme-toggle:hover {
  border-color: var(--mu-accent);
  color: var(--mu-accent);
}

/* ---------------------------------------------------------------------
   Layout de duas colunas (sumário + conteúdo)
   --------------------------------------------------------------------- */

.site-layout {
  max-width: 1080px;
  margin: 0 auto;
  padding: 2.5em 1.5em 5em;
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 3em;
  align-items: start;
}

.site-layout.no-toc {
  grid-template-columns: minmax(0, 1fr);
  max-width: 820px;
}

.site-layout.no-toc.wide {
  max-width: 1080px;
}

.page-toc {
  position: sticky;
  top: 5em;
  font-size: 0.86em;
}
.page-toc h2 {
  font-size: 0.78em;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--mu-text-muted);
  margin: 0 0 0.75em;
  font-weight: 600;
}
.page-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5em;
}
.page-toc li[data-depth='3'] {
  padding-left: 1em;
}
.page-toc a {
  color: var(--mu-text-muted);
}
.page-toc a:hover {
  color: var(--mu-accent);
  text-decoration: none;
}

.site-content .mu-document {
  max-width: 720px;
}
.site-content .mu-heading {
  scroll-margin-top: 4.5em;
}
.site-content .mu-heading a.anchor-link {
  margin-left: 0.4em;
  opacity: 0;
  color: var(--mu-text-muted);
  font-weight: 400;
  font-size: 0.8em;
}
.site-content .mu-heading:hover a.anchor-link {
  opacity: 1;
}

/* ---------------------------------------------------------------------
   Home
   --------------------------------------------------------------------- */

.hero-tagline {
  color: var(--mu-text-muted);
  font-size: 1.05em;
  margin-top: -0.5em;
}

/* ---------------------------------------------------------------------
   Playground
   --------------------------------------------------------------------- */

.playground-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5em;
  margin: 1.5em 0 2.5em;
}

.interpreter-root .playground-grid {
  margin-top: 1.5em;
}
.interpreter-root .playground-input,
.interpreter-root .playground-output {
  min-height: 72vh;
}

.playground-input {
  width: 100%;
  min-height: 220px;
  resize: vertical;
  border: 1px solid var(--mu-border);
  border-radius: 8px;
  background: var(--mu-bg-subtle);
  color: var(--mu-text);
  font-family: var(--font-mono);
  font-size: 0.85em;
  line-height: 1.6;
  padding: 1em;
}
.playground-input:focus {
  outline: 2px solid var(--mu-accent);
  outline-offset: -1px;
}

.playground-output {
  border: 1px solid var(--mu-border);
  border-radius: 8px;
  padding: 1em 1.2em;
  overflow: auto;
}
.playground-output .mu-document {
  max-width: none;
  font-size: 0.92em;
}
.playground-hint {
  color: var(--mu-text-muted);
  font-size: 0.8em;
  margin-top: 1em;
  margin-bottom: 0;
}

/* ---------------------------------------------------------------------
   Rodapé
   --------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--mu-border);
  color: var(--mu-text-muted);
  font-size: 0.85em;
  text-align: center;
  padding: 2em 1.5em;
}
.site-footer a {
  color: var(--mu-text-muted);
}

/* ---------------------------------------------------------------------
   Responsivo
   --------------------------------------------------------------------- */

@media (max-width: 860px) {
  .site-layout {
    grid-template-columns: minmax(0, 1fr);
  }
  .page-toc {
    position: static;
    order: 2;
    border-top: 1px solid var(--mu-border);
    padding-top: 1.5em;
    margin-top: 2em;
  }
  .playground-grid {
    grid-template-columns: 1fr;
  }
  .site-nav {
    gap: 1em;
  }
}