/* =============================================================================
   FORMAÇÃO MÉTODO ANTIQUEDA CAPILAR — BASE
   Reset + elementos + tipografia fluida + primitivas de layout + utilidades de
   movimento. Carregar SEMPRE depois de tokens.css e antes de components.css.
   ============================================================================= */

/* ----------------------------------------------------------------------------
   0 · RESET (padrão da casa: enxuto, sem framework)
   ---------------------------------------------------------------------------- */
*,
*::before,
*::after { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

img, svg, video, picture {
  display: block;
  max-width: 100%;
  height: auto;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

ul, ol { list-style: none; }

a { color: inherit; text-decoration: none; }

/* Se o JS falhar, nada de reveal fica invisível (crítico p/ público C-D). */
.no-js .reveal,
.no-js .fade-up,
.no-js [data-animate] { opacity: 1 !important; transform: none !important; }

/* ----------------------------------------------------------------------------
   1 · BODY / TEXTO
   ---------------------------------------------------------------------------- */
body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--weight-body);
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--bordo); color: #fff; }

p { max-width: 68ch; }

strong, b { font-weight: var(--weight-strong); }

a.link {
  color: var(--bordo);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: var(--transition-fast);
}
a.link:hover { color: var(--bordo-700); }

/* ----------------------------------------------------------------------------
   2 · TÍTULOS (fluidos, tracking negativo — "aperto premium")
   ---------------------------------------------------------------------------- */
h1, h2, h3, h4, .display {
  font-family: var(--font-title);
  font-weight: var(--weight-title);
  line-height: var(--lh-heading);
  letter-spacing: var(--tracking-title);
  color: var(--text);
  text-wrap: balance;
}

.display { font-size: var(--fs-display); line-height: var(--lh-tight); }
h1, .h1 { font-size: var(--fs-h1); line-height: var(--lh-tight); }
h2, .h2 { font-size: var(--fs-h2); }
h3, .h3 { font-size: var(--fs-h3); letter-spacing: var(--tracking-tight); }
h4, .h4 { font-size: var(--fs-h4); letter-spacing: var(--tracking-tight); }

/* Palavra-destaque em Bordô sólido (cor + peso carregam a ênfase; sem clip-text
   gradiente — legibilidade máxima no número mais importante do hero). */
.highlight { color: var(--bordo); }

/* Parágrafo de apoio grande sob um título */
.lead {
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--text-muted);
  line-height: 1.6;
}

/* ----------------------------------------------------------------------------
   3 · EYEBROW / LABEL DE SEÇÃO (âncora de hierarquia repetida — assinatura da casa)
   ---------------------------------------------------------------------------- */
.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: var(--weight-strong);
  text-transform: uppercase;
  letter-spacing: var(--tracking-eyebrow);
  color: var(--bordo);
  margin-bottom: var(--space-4);
}
/* Variante entre colchetes [ ... ] (assinatura editorial da Métrica) */
.eyebrow--bracket::before { content: "[ "; opacity: .55; }
.eyebrow--bracket::after  { content: " ]"; opacity: .55; }
/* Sobre fundos escuros (bordô / rosê) */
.section--invert .eyebrow,
.section--empathy .eyebrow { color: var(--rose-100); }

/* ----------------------------------------------------------------------------
   4 · LAYOUT — container & seções (ritmo de respiro largo)
   ---------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}
.container--narrow { max-width: var(--container-narrow); }
.container--wide   { max-width: var(--container-wide); }

.section { padding-block: var(--section-y); }

/* Ritmo dark/cream/surface → branco/neutro/rosê/bordô */
.section--alt          { background: var(--bg-alt); }
.section--empathy      { background: var(--bg-empathy);      color: var(--text-on-rose); }
.section--empathy-soft { background: var(--bg-empathy-soft); }
.section--invert       { background: var(--bg-invert);       color: var(--text-on-bordo); }

.section--empathy h1, .section--empathy h2, .section--empathy h3,
.section--invert  h1, .section--invert  h2, .section--invert  h3 { color: #fff; }
.section--invert .lead  { color: rgba(255,255,255,.82); }
.section--empathy .lead { color: rgba(255,255,255,.9); }

/* Cabeçalho de seção centralizado (padrão recorrente) */
.section-head { max-width: 720px; margin: 0 auto var(--space-8); text-align: center; }
.section-head p { margin-inline: auto; }

/* Régua fina de 1px (grade tipográfica de revista — Métrica) */
.rule { height: 1px; background: var(--border); border: 0; }

/* ----------------------------------------------------------------------------
   5 · MOVIMENTO — reveal on-scroll (JS adiciona .is-visible)
       "urgência elegante, sem caixas piscando" — contido e premium
   ---------------------------------------------------------------------------- */
.reveal,
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--dur-reveal) var(--ease-expo),
              transform var(--dur-reveal) var(--ease-expo);
  will-change: opacity, transform;
}
.reveal--left  { transform: translateX(-40px); }
.reveal--right { transform: translateX(40px); }

.reveal.is-visible,
.fade-up.is-visible { opacity: 1; transform: none; }

/* Stagger: cada filho entra com um atraso incremental */
.stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s var(--ease-expo), transform .6s var(--ease-expo);
}
.stagger.is-visible > * { opacity: 1; transform: none; }
.stagger.is-visible > *:nth-child(1) { transition-delay: 0s; }
.stagger.is-visible > *:nth-child(2) { transition-delay: .1s; }
.stagger.is-visible > *:nth-child(3) { transition-delay: .2s; }
.stagger.is-visible > *:nth-child(4) { transition-delay: .3s; }
.stagger.is-visible > *:nth-child(5) { transition-delay: .4s; }
.stagger.is-visible > *:nth-child(6) { transition-delay: .5s; }

/* Acessibilidade: respeitar quem pediu menos movimento */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important;
      transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .reveal, .fade-up, .stagger > * { opacity: 1 !important; transform: none !important; }
}

/* ----------------------------------------------------------------------------
   6 · FOCO VISÍVEL (teclado) & utilidades
   ---------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--bordo);
  outline-offset: 2px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* Skip-to-content: escondido até receber foco por teclado */
.skip-link {
  position: fixed;
  top: 8px; left: 8px;
  z-index: calc(var(--z-topbar) + 10);
  padding: 10px 18px;
  background: var(--bordo);
  color: #fff;
  font-family: var(--font-title);
  font-weight: var(--weight-strong);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  transform: translateY(-150%);
  transition: transform .2s var(--ease-expo);
}
.skip-link:focus { transform: none; outline: 2px solid #fff; outline-offset: 2px; }

/* Alvo do skip-link não deve mostrar anel de foco ao receber foco programático */
#conteudo:focus { outline: none; }

.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }

/* Grids responsivos utilitários */
.grid-2, .grid-3, .grid-4 { display: grid; gap: var(--space-5); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.stack-sm  > * + * { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }