:root {
  --site-font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --color-white: #ffffff;
  --color-dark: #131415;
  --doc-border: #e5e6e8;
  --doc-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --doc-muted: #5b6067;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--site-font-family);
  color: var(--color-dark);
  background: #fff;
  -webkit-font-smoothing: antialiased;
}

.doc-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Top hero ---- */
.doc-hero {
  background: var(--color-interactive-primary-default);
  color: #fff;
  padding: 64px 0 48px;
}

.doc-hero .doc-shell {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.doc-hero .doc-kicker {
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 13px;
  font-weight: 600;
  opacity: .85;
}

.doc-hero h1 {
  margin: 0;
  font-size: 40px;
  font-weight: 700;
  line-height: 1.15;
}

.doc-hero p {
  margin: 0;
  font-size: 17px;
  max-width: 640px;
  opacity: .92;
  line-height: 1.5;
}

.doc-hero code {
  background: rgba(255, 255, 255, .15);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: var(--doc-mono);
  font-size: 13px;
}

/* variante compatta della hero, usata nelle 4 pagine di categoria */
.doc-hero.doc-hero--sub {
  padding: var(--space-xs) 0 var(--space-sm);
}

.doc-hero--sub h1 {
  font-size: 28px;
}

/* ---- Top page menu (site-wide, link alle 4 pagine di categoria) ---- */
.doc-topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  background: #fff;
  border-bottom: 1px solid var(--doc-border);
}

.doc-topbar .doc-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2xs);
  height: 56px;
}

.doc-topbar-brand {
  font-weight: 700;
  font-size: 15px;
  color: var(--color-dark);
  text-decoration: none;
  white-space: nowrap;
}

.doc-topbar-links {
  display: flex;
  gap: var(--space-4xs);
  overflow-x: auto;
}

.doc-topbar-links a {
  white-space: nowrap;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--doc-muted);
  text-decoration: none;
}

.doc-topbar-links a:hover {
  color: var(--color-interactive-primary-default);
  background: var(--color-background-sunken);
}

.doc-topbar-links a.active {
  color: var(--color-interactive-primary-default);
  background: var(--color-background-brand-subtler);
}

/* ---- Sidebar + contenuto (sostituisce il vecchio .doc-nav orizzontale a schede) ---- */
.doc-layout {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xl);
}

.doc-sidebar {
  position: sticky;
  top: 57px;
  flex: 0 0 200px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--space-md) 0;
  max-height: calc(100vh - 57px);
  overflow-y: auto;
}

.doc-sidebar a {
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--doc-muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: 0 6px 6px 0;
}

.doc-sidebar a:hover {
  color: var(--color-interactive-primary-default);
}

.doc-sidebar a.active {
  color: var(--color-interactive-primary-default);
  border-color: var(--color-interactive-primary-default);
  background: var(--color-background-brand-subtler);
}

.doc-content {
  flex: 1 1 auto;
  min-width: 0;
}

@media (max-width: 900px) {
  .doc-layout {
    flex-direction: column;
  }

  .doc-sidebar {
    position: static;
    flex-direction: row;
    flex: 0 0 auto;
    width: 100%;
    max-height: none;
    overflow-y: visible;
    overflow-x: auto;
    gap: 4px;
    padding: var(--space-2xs) 0;
    border-bottom: 1px solid var(--doc-border);
  }

  .doc-sidebar a {
    border-left: none;
    border-bottom: 2px solid transparent;
    border-radius: 6px 6px 0 0;
  }

  .doc-sidebar a.active {
    border-color: var(--color-interactive-primary-default);
  }
}

/* ---- Sections ---- */
.doc-section {
  padding: 56px 0;
  border-bottom: 1px solid var(--doc-border);
}

.doc-section:last-of-type {
  border-bottom: none;
}

.doc-section-head {
  margin-bottom: 28px;
}

.doc-section-head .doc-eyebrow {
  text-transform: uppercase;
  letter-spacing: .06em;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-interactive-secondary-default);
  margin-bottom: 6px;
}

.doc-section-head h2 {
  margin: 0 0 6px;
  font-size: 26px;
  font-weight: 700;
}

.doc-section-head p {
  margin: 0;
  color: var(--doc-muted);
  font-size: 15px;
  max-width: 680px;
}

.doc-group-title {
  padding-top: 48px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--color-interactive-primary-default);
}

/* sottotitolo grigio usato dentro le sezioni per raggruppare esempi */
.doc-subhead {
  font-size: 15px;
  margin: 0 0 12px;
  color: var(--doc-muted);
}

.doc-subhead--spaced {
  margin-top: 24px;
}

/* ---- Generic card/grid helpers for docs ---- */
.doc-grid {
  display: grid;
  gap: 16px;
}

.doc-grid.cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.doc-grid.cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.doc-grid.cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width:900px) {

  .doc-grid.cols-3,
  .doc-grid.cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width:640px) {

  .doc-grid.cols-2,
  .doc-grid.cols-3,
  .doc-grid.cols-4 {
    grid-template-columns: 1fr;
  }

  .doc-hero h1 {
    font-size: 30px;
  }
}

.doc-tile-example {
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  background: #fafafa;
  border: 1px solid var(--doc-border);
}

/* varianti dell'esempio: contenuto allineato a sinistra invece che centrato */
.doc-tile-example--start {
  justify-content: flex-start;
}

/* varianti dell'esempio: nessun padding proprio, per contenuti che lo gestiscono da soli */
.doc-tile-example--flush {
  padding: 0;
}

/* varianti dell'esempio: layout in colonna (demo larghezze massime) */
.doc-tile-example--stack {
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 8px;
}

/* tile che occupa tutte le colonne della griglia */
.doc-tile--full {
  grid-column: 1 / -1;
}

/* forza l'allineamento all'inizio invece dello stretch di default del flex verticale (.vgap-*) */
.doc-align-start {
  align-items: flex-start;
}

.doc-tile-meta {
  padding: 12px 16px;
}

.doc-tile-meta .doc-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-dark);
}

.doc-tile-meta code {
  display: block;
  margin-top: 4px;
  font-family: var(--doc-mono);
  font-size: 12px;
  color: var(--doc-muted);
  word-break: break-all;
}

/* bordo inferiore leggero per rendere visibili gli swatch molto chiari */
.doc-swatch--edge {
  border-bottom: 1px solid var(--doc-border);
}

/* riquadro con overlay scuro sopra un finto sfondo immagine (gradiente) */
.doc-bg-demo {
  width: 100%;
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.doc-overlay-demo {
  background-image: linear-gradient(135deg, var(--color-interactive-primary-default), var(--color-interactive-secondary-default));
}
/* ---- Typography rows ---- */
.doc-type-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--doc-border);
  flex-wrap: wrap;
}

.doc-type-row:last-child {
  border-bottom: none;
}

.doc-type-sample {
  flex: 1 1 auto;
  min-width: 280px;
}

.doc-type-tag {
  flex: 0 0 auto;
  font-family: var(--doc-mono);
  font-size: 12px;
  color: var(--doc-muted);
  background: #f4f4f5;
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap;
}

/* ---- Spacing bars ---- */
.doc-space-row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 0;
}

.doc-space-bar {
  background: var(--color-interactive-primary-default);
  height: 14px;
  border-radius: 3px;
}

.doc-space-name {
  font-family: var(--doc-mono);
  font-size: 13px;
  width: 150px;
  flex: 0 0 auto;
  color: var(--doc-muted);
}

/* ---- Radius demo ---- */
.doc-radius-demo {
  width: 100px;
  height: 100px;
  background: var(--color-background-brand-subtler);
  border: 2px solid var(--color-interactive-primary-default);
}

/* ---- Citazione: attribuzione più tenue ---- */
.doc-quote-cite {
  opacity: .7;
}

/* ---- Blocco che deve occupare tutta la larghezza disponibile (bottoni full-width, barre demo mw-*) ---- */
.doc-block-full {
  width: 100%;
}

/* barra colorata usata per la demo delle larghezze massime (.mw-*) */
.doc-mw-bar {
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
}

/* box a larghezza fissa per la demo di .ratio-16_9/.ratio-4_3 (il rapporto lo gestisce già la classe reale) */
.doc-ratio-box {
  width: 480px;
}
/* riempimento centrato del figlio assoluto dentro un contenitore .ratio-* */
.doc-ratio-fill {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}

/* ---- Hub (index): card di collegamento alle 4 pagine di categoria ---- */
.doc-hub-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: var(--space-2xs);
  border: 1px solid var(--doc-border);
  text-decoration: none;
  color: inherit;
}

.doc-hub-card:hover {
  border-color: var(--color-interactive-primary-default);
}

.doc-hub-card .doc-hub-count {
  font-family: var(--doc-mono);
  font-size: 12px;
  color: var(--doc-muted);
}

footer.doc-footer {
  padding: 32px 0 64px;
  color: #8a8f97;
  font-size: 13px;
  text-align: center;
}

footer.doc-footer a {
  color: var(--color-interactive-primary-default);
}