/* ── Anti-flickering: elementos animados começam invisíveis quando JS ativo ── */
.js .reveal,
.js .hero h1,
.js .manifesto-copy,
.js .workflow-board,
.js .hero .eyebrow,
.js .hero-copy,
.js .hero-actions .btn,
.js .hero-meta div {
  opacity: 0;
  visibility: hidden;
}

/* Spans criados dinamicamente pelo split-text também começam invisíveis */
.js .word-inner,
.js .m-word {
  opacity: 0;
  visibility: hidden;
}

/* Performance: will-change apenas em elementos que animam */
.word-inner, .ui-card, .service-card, .post-card,
.audience-panel, .method-row, .m-word,
.hero .eyebrow, .hero-copy, .hero-actions .btn,
.hero-meta div, .workflow-board, .moving-node {
  will-change: transform, opacity;
}

/* ── Fallbacks e Acessibilidade ── */
@supports not (backdrop-filter: blur(20px)) {
  .site-header.is-scrolled {
    background: var(--bg);
  }
}

@media (prefers-contrast: more) {
  .service-card,
  .post-card,
  .ui-card,
  .audience-panel,
  .method-aside,
  .contact-card {
    border-color: var(--muted);
    border-style: solid;
  }
  body::before {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
  .hero::before,
  #faz::before,
  #metodo::before,
  #metodo::after {
    animation: none;
  }
  body::before,
  body::after {
    display: none;
  }
}

/* ── Responsivo ── */
@media (max-width: 980px) {
  .nav { grid-template-columns: 1fr auto auto; }
  .nav-links {
    position: fixed;
    inset: 72px 12px auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--glass-bg, color-mix(in oklch, var(--bg), transparent 5%));
    backdrop-filter: blur(20px) saturate(120%);
    -webkit-backdrop-filter: blur(20px) saturate(120%);
    border: 1px dashed var(--glass-border, var(--border));
    border-radius: var(--radius-md);
    padding: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
    z-index: 9;
  }
  .nav-links.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-links a {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
  }
  .nav-links a:hover,
  .nav-links a:focus-visible {
    background: var(--surface-1);
  }
  .nav-links a::after { display: none; }
  .nav-toggle { display: flex; }
  .nav-toggle[aria-expanded="true"] span:first-child { transform: translateY(7px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] span:last-child { transform: translateY(-7px) rotate(-45deg); }
  .header-actions .header-cta { display: none; }
  .hero-grid, .method { grid-template-columns: 1fr; }
  .workflow-board { min-height: 520px; }
  .cards-4, .content-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section-head { grid-template-columns: 1fr; }
  .method-aside { position: static; }
  .audience-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .audience-panel { border: none; }
  .audience-panel.wide { grid-column: span 2; }
}

@media (max-width: 680px) {
  :root { --pad: 20px; }
  .site-header { position: sticky; }
  .nav { min-height: 72px; }
  .brand span:last-child { display: none; }
  .header-cta .btn { padding-inline: 12px; font-size: 10px; border-radius: var(--radius-sm); }
  .hero { min-height: auto; padding: clamp(48px, 10vw, 80px) 0 clamp(48px, 8vw, 72px); }
  .hero h1 { font-size: clamp(40px, 12vw, 64px); margin-top: 24px; }
  .hero-copy { margin-top: 24px; }
  section.block { padding: clamp(64px, 12vw, 96px) 0; }
  .manifesto { padding: clamp(80px, 14vw, 120px) 0; }

  .hero-meta { grid-template-columns: 1fr; }
  .hero-meta div, .hero-meta div + div { border-right: 0; padding-left: 0; border-bottom: 1px dashed var(--border); }
  .hero-meta div:last-child { border-bottom: 0; }
  .cards-4, .content-grid, .audience-grid { grid-template-columns: 1fr; }
  .audience-panel { border: none; }
  .audience-panel.wide { grid-column: span 1; }
  .method-row { grid-template-columns: 54px 1fr; gap: 16px; padding: 20px; margin-bottom: 16px; }
  .method-row code { grid-column: 2; justify-self: start; margin-top: 8px; }
  .method-row .number { width: 44px; height: 44px; font-size: 14px; }
  .method-row:not(:last-child)::after { height: 16px; bottom: -16px; }
  .footer-grid { display: grid; }

  /* ── Pipeline Vertical Mobile ── */
  .workflow-board {
    min-height: auto;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
  }

  .workflow-stage {
    min-height: auto;
    padding: 20px 18px 0;
  }

  /* SVG paths escondidos no mobile */
  .flow-svg { display: none; }

  /* Pipeline track: linha vertical animada */
  .pipeline-track {
    display: block;
    position: absolute;
    top: 70px;
    left: 34px;
    width: 1px;
    height: calc(100% - 110px);
    z-index: 1;
    pointer-events: none;
  }
  .pipeline-fill {
    position: absolute;
    inset: 0;
    border-left: 1px dashed var(--border);
    transform-origin: top center;
    transform: scaleY(0);
  }
  .pipeline-node {
    position: absolute;
    left: 50%;
    transform: translateX(-50%) scale(0);
    width: 10px;
    height: 10px;
    border-radius: var(--radius-sm);
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    z-index: 2;
  }
  /* Posicionamento dos nodes ao longo da track */
  .pipeline-node:nth-child(2) { top: 0; }
  .pipeline-node:nth-child(3) { top: 33%; }
  .pipeline-node:nth-child(4) { top: 66%; }
  .pipeline-node:nth-child(5) { top: calc(100% - 12px); }

  /* Grid vira coluna no mobile */
  .workflow-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: none;
    margin: 0;
  }

  /* Cards em coluna, com padding-left para a linha */
  .ui-card {
    position: relative;
    left: auto !important;
    right: auto !important;
    top: auto !important;
    bottom: auto !important;
    width: calc(100% - 48px);
    margin-left: 36px;
    margin-bottom: 0;
    animation: none;
    transform: none;
    opacity: 0;
    justify-self: auto !important;
    align-self: auto !important;
  }

  /* Conectores entre cards no mobile */
  .connector {
    display: block;
    position: relative;
    height: 28px;
    margin-left: 36px;
  }
  .connector::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 0;
    bottom: 0;
    width: 0;
    border-left: 1px dashed var(--border);
  }
  .connector-dot {
    position: absolute;
    left: -27px;
    top: 50%;
    margin-top: -5px;
    width: 10px;
    height: 10px;
    border-radius: var(--radius-sm);
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent);
    z-index: 2;
  }

  /* Nodes nos cards removidos (usamos .pipeline-node agora) */
  .ui-card::after { display: none; }

  /* Terminal como visor de status no topo */
  .terminal {
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    margin: 0 18px 18px;
    font-size: 12px;
    padding: 14px 16px;
    opacity: 0;
    transform: translateY(10px);
  }
  .terminal::before {
    animation: none;
  }

  /* Board dots menores */
  .board-dots i {
    width: 8px;
    height: 8px;
  }
  .board-top {
    min-height: 40px;
    padding: 0 14px;
  }

  /* ── Otimizações de Performance Mobile ── */
  .hero::before, .hero::after,
  #faz::before,
  #publico::before,
  #metodo::before, #metodo::after,
  #conteudos::before,
  #contato::before {
    animation: none;
  }

  body::before { display: none; }
  body::after { display: none; }

  .word-inner, .ui-card, .service-card, .post-card,
  .audience-panel, .method-row, .m-word,
  .hero .eyebrow, .hero-copy, .hero-actions .btn,
  .hero-meta div, .workflow-board, .moving-node {
    will-change: auto;
  }

  .site-header.is-scrolled {
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    background: color-mix(in oklch, var(--bg), transparent 10%);
  }

  .card-glow { display: none; }
}