/* Backlab Social Proof — cinco clientes reais confirmados. Depois da UAU Experience (rica, técnica),
   esta seção precisa de respiro: silenciosa, editorial, objetiva. Sem cards, sem sombras, sem
   marquee/carrossel — os cinco logos como coleção. Estado final é o HTML/CSS; sem JS/motion
   (mesma decisão do Backlab Method, Fase 06). Continua no universo dark: Surface 01 (UAU) →
   Backlab Black aqui, marcando o novo capítulo sem faixa clara nem corte abrupto. */
.bl-social-proof {
  --bl-sp-ink: var(--bl-text-primary, #f5f8f7);
  --bl-sp-muted: var(--bl-text-secondary, #a8b4b1);
  --bl-sp-brand: var(--bl-color-brand, #3dbfb0);
  position: relative;
  margin: 0;
  color: var(--bl-sp-ink);
  background-color: var(--bl-bg-primary, #080c0c);
  border-block-start: 1px solid rgba(245, 248, 247, .06);
}

.bl-social-proof,
.bl-social-proof *,
.bl-social-proof *::before,
.bl-social-proof *::after {
  box-sizing: border-box;
}

.bl-social-proof__inner {
  padding-block: clamp(4.5rem, 11svh, 7rem);
}

.bl-social-proof__intro {
  max-inline-size: 46ch;
  margin-inline: auto;
  text-align: center;
}

.bl-social-proof__eyebrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  margin: 0 0 clamp(1.25rem, 2.6svh, 1.75rem);
  color: var(--bl-sp-brand);
  font: 600 clamp(.67rem, .64rem + .12vw, .78rem)/1.3 var(--bl-font-ui, system-ui, sans-serif);
  letter-spacing: .13em;
  text-transform: uppercase;
}

.bl-social-proof__eyebrow::before,
.bl-social-proof__eyebrow::after {
  inline-size: clamp(1.25rem, 2.2vw, 2rem);
  block-size: 1px;
  content: '';
  background: linear-gradient(90deg, rgba(61, 191, 176, .15), var(--bl-sp-brand));
}

.bl-social-proof__eyebrow::after {
  background: linear-gradient(90deg, var(--bl-sp-brand), rgba(61, 191, 176, .15));
}

.bl-social-proof__headline {
  margin: 0;
  color: var(--bl-sp-ink);
  font: 600 clamp(1.85rem, 1rem + 2.3vw, 2.75rem)/1.16 var(--bl-font-display, system-ui, sans-serif);
  letter-spacing: -.03em;
  text-wrap: balance;
}

.bl-social-proof__lead {
  margin: clamp(1.1rem, 2.4svh, 1.5rem) auto 0;
  max-inline-size: 46ch;
  color: var(--bl-sp-muted);
  font: 400 clamp(1rem, .96rem + .2vw, 1.1rem)/1.6 var(--bl-font-ui, system-ui, sans-serif);
  text-wrap: pretty;
}

/* ---- Grid dos cinco logos --------------------------------------------------------------- */
.bl-social-proof__grid {
  --bl-sp-logo-h: clamp(2.35rem, 6.5svh, 2.9rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: clamp(3rem, 8svh, 4.5rem) 0 0;
  padding: 0;
  list-style: none;
}

.bl-social-proof__item {
  display: flex;
  align-items: center;
  justify-content: center;
  inline-size: 100%;
  max-inline-size: 16rem;
  padding-block: clamp(1rem, 3svh, 1.5rem);
  border-block-start: 1px solid rgba(245, 248, 247, .08);
}

.bl-social-proof__item:first-child {
  border-block-start: none;
  padding-block-start: 0;
}

.bl-social-proof__link {
  display: inline-flex;
}

.bl-social-proof__link:focus-visible {
  outline: 2px solid var(--bl-sp-brand);
  outline-offset: 4px;
  border-radius: var(--bl-radius-sm, .375rem);
}

.bl-social-proof__logo {
  display: block;
  block-size: var(--bl-sp-logo-h);
  inline-size: auto;
  max-inline-size: 100%;
  /* Monocromático claro sobre fundo dark: qualquer pixel opaco (preto, azul, verde, laranja…)
     vira branco, preservando o alpha original — resolve o contraste de AJB/Titânio/Legado e
     nivela o peso visual das cinco marcas sem redesenhar nenhuma. */
  filter: brightness(0) invert(1);
  opacity: 1;
  transition: opacity 240ms var(--bl-ease-out, ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .bl-social-proof__logo {
    opacity: .58;
  }

  .bl-social-proof__item:hover .bl-social-proof__logo,
  .bl-social-proof__item:focus-within .bl-social-proof__logo {
    opacity: 1;
  }
}

/* ---- Tablet: 3 + 2 centrado, sem regra rígida de largura igual --------------------------- */
@media (min-width: 768px) {
  .bl-social-proof__grid {
    --bl-sp-logo-h: clamp(2.5rem, 5svh, 3rem);
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    align-items: center;
    justify-items: center;
    column-gap: clamp(1.5rem, 3vw, 2.5rem);
    row-gap: clamp(1.75rem, 4svh, 2.5rem);
  }

  .bl-social-proof__item {
    max-inline-size: none;
    padding-block: 0;
    border-block-start: none;
  }

  .bl-social-proof__item:nth-child(1) { grid-column: 1 / 3; }
  .bl-social-proof__item:nth-child(2) { grid-column: 3 / 5; }
  .bl-social-proof__item:nth-child(3) { grid-column: 5 / 7; }
  .bl-social-proof__item:nth-child(4) { grid-column: 2 / 4; }
  .bl-social-proof__item:nth-child(5) { grid-column: 4 / 6; }
}

/* ---- Desktop: cinco em uma linha, altura fluida garante que caiba -------------------------- */
@media (min-width: 1024px) {
  .bl-social-proof__grid {
    --bl-sp-logo-h: clamp(1.9rem, 2.4vw, 2.6rem);
    grid-template-columns: none;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
    gap: clamp(1.5rem, 3vw, 3.5rem);
  }

  .bl-social-proof__item {
    flex: 0 1 auto;
  }
}

@media (min-width: 1440px) {
  .bl-social-proof__grid {
    --bl-sp-logo-h: clamp(2.1rem, 2vw, 2.75rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .bl-social-proof__logo {
    transition-duration: .01ms;
  }
}

@media (forced-colors: active) {
  .bl-social-proof__logo {
    filter: none;
  }

  .bl-social-proof__item {
    border-color: CanvasText;
  }

  .bl-social-proof__eyebrow::before,
  .bl-social-proof__eyebrow::after {
    background: CanvasText;
  }
}