/* ==========================================================================
   BUSK CONSTRUTORA — Landing Page
   Folha única. Ordem: tokens → reset → utilitários → componentes →
   seções → responsivo → acessibilidade/motion.
   ========================================================================== */

/* ==========================================================================
   1. DESIGN TOKENS
   ========================================================================== */
:root {
  /* --- Cor: superfícies --- */
  --bg-primary:    #04070F;
  --bg-secondary:  #080D1A;
  --bg-elevated:   #0D1424;
  --bg-inverse:    #F2F2F0;

  /* --- Cor: texto --- */
  --text-primary:   #F5F5F5;
  --text-secondary: #BAC2D0;
  --text-muted:     #8590A4;
  --text-inverse:   #0A0A0A;

  /* --- Cor: marca -----------------------------------------------------
     Azul do globo do logotipo Busk, clareado para contraste no fundo
     escuro. O marinho do selo (#213560) vira o tom das superfícies.
     -------------------------------------------------------------------- */
  --accent:       #8DB0EC;
  --accent-hover: #ADC7F3;
  --accent-ink:   #08122A;
  --accent-dim:   rgba(141, 176, 236, .14);

  --whatsapp:       #25D366;
  --whatsapp-hover: #1EBE59;

  /* botão principal: azul forte com texto branco (contraste 5.8:1) */
  --cta:       #1F5BE0;
  --cta-hover: #2C6CF2;

  /* --- Cor: traços --- */
  --border:        #1C2438;
  --border-strong: #33405C;
  --border-inverse: #D8D8D4;

  /* --- Tipografia --- */
  --font-display: "Rajdhani", "Arial Narrow", system-ui, sans-serif;
  --font-body:    "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --fs-eyebrow: clamp(.72rem, .68rem + .18vw, .82rem);
  --fs-micro:   clamp(.82rem, .79rem + .15vw, .9rem);
  --fs-body:    clamp(.98rem, .94rem + .22vw, 1.075rem);
  --fs-lead:    clamp(1.05rem, 1rem + .34vw, 1.22rem);
  --fs-h3:      clamp(1.18rem, 1.05rem + .62vw, 1.5rem);
  --fs-h2:      clamp(1.95rem, 1.5rem + 2.1vw, 3.15rem);
  --fs-h1:      clamp(2.35rem, 1.5rem + 2.7vw, 3.7rem);
  --fs-num:     clamp(1.6rem, 1.3rem + 1.3vw, 2.35rem);

  --lh-tight: 1.06;
  --lh-snug:  1.22;
  --lh-body:  1.68;

  --ls-eyebrow: .2em;
  --ls-display: -.005em;
  --ls-btn:     .08em;

  /* --- Espaçamento --- */
  --sp-1:  .25rem;
  --sp-2:  .5rem;
  --sp-3:  .75rem;
  --sp-4:  1rem;
  --sp-5:  1.5rem;
  --sp-6:  2rem;
  --sp-7:  2.75rem;
  --sp-8:  3.5rem;
  --sp-9:  5rem;
  --sp-10: 7rem;
  --section-y: clamp(4.5rem, 3rem + 6.5vw, 8.5rem);

  /* --- Container --- */
  --container-max: 1320px;
  --gutter: clamp(1.25rem, .6rem + 2.6vw, 3rem);

  /* --- Bordas / raios --- */
  --radius-sm: 2px;
  --radius-md: 3px;
  --radius-pill: 999px;

  /* --- Transições --- */
  --dur-fast: 180ms;
  --dur-btn:  250ms;
  --dur-mid:  380ms;
  --dur-card: 520ms;
  --dur-reveal: 620ms;
  --dur-slide: 900ms;         /* crossfade entre fotos da galeria */
  --dur-slide-hold: 2600ms;   /* tempo de cada foto (lido pelo main.js) */
  --dur-kenburns: 3400ms;     /* aproximação lenta da foto ativa */
  --ease:      cubic-bezier(.4, 0, .2, 1);
  --ease-out:  cubic-bezier(.16, .84, .44, 1);

  /* --- Elevação --- */
  --shadow-card:  0 18px 44px rgba(0,0,0,.55);
  --shadow-float: 0 10px 30px rgba(0,0,0,.45);

  /* --- z-index --- */
  --z-base: 1;
  --z-media: 0;
  --z-scrim: 1;
  --z-content: 2;
  --z-float: 60;
  --z-header: 80;
  --z-nav: 90;
  --z-skip: 100;

  /* --- Breakpoints conceituais (referência p/ DESIGN.md) ---
     mobile  : até 767px
     tablet  : 768px – 1199px
     desktop : 1200px em diante
     wide    : 1600px em diante                                        */
}

/* ==========================================================================
   2. RESET / BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-display);
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

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

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

strong { color: var(--text-primary); font-weight: 600; }

::selection { background: var(--accent); color: var(--accent-ink); }

/* ==========================================================================
   3. UTILITÁRIOS
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-4);
}
.eyebrow span { color: var(--text-muted); margin-inline: .35em; }

.rule {
  display: block;
  width: 56px;
  height: 3px;
  background: var(--accent);
  margin-top: var(--sp-5);
}
.section-head--center .rule { margin-inline: auto; }

.section-title {
  font-size: var(--fs-h2);
  text-transform: uppercase;
}

.section-lead {
  color: var(--text-secondary);
  font-size: var(--fs-lead);
  max-width: 56ch;
  margin-top: var(--sp-5);
}
.section-head--center { text-align: center; }
.section-head--center .section-lead { margin-inline: auto; }

.skip-link {
  position: absolute;
  left: var(--sp-4);
  top: -100px;
  z-index: var(--z-skip);
  background: var(--accent);
  color: var(--accent-ink);
  padding: var(--sp-3) var(--sp-5);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: top var(--dur-fast) var(--ease);
}
.skip-link:focus { top: var(--sp-4); }

/* ==========================================================================
   4. COMPONENTE: BOTÕES
   ========================================================================== */
.btn {
  --btn-py: .95rem;
  --btn-px: 1.65rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .65rem;
  min-height: 48px;
  padding: var(--btn-py) var(--btn-px);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: var(--ls-btn);
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color var(--dur-btn) var(--ease),
              border-color var(--dur-btn) var(--ease),
              color var(--dur-btn) var(--ease),
              transform var(--dur-btn) var(--ease);
}

.btn--primary {
  background: var(--cta);
  color: #fff;
  border-color: var(--cta);
  box-shadow: 0 8px 24px rgba(31, 91, 224, .35);
}
.btn--primary:hover { background: var(--cta-hover); border-color: var(--cta-hover); transform: translateY(-2px); }
/* ícone do WhatsApp na cor da marca dentro do botão azul */
.btn--primary .btn__icon { color: var(--whatsapp); }
.btn--primary .btn__icon svg { width: 22px; height: 22px; }
.btn--primary:active { transform: translateY(0); }

.btn--outline {
  border-color: var(--border-strong);
  color: var(--text-primary);
}
.btn--outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.btn--lg { --btn-py: 1.15rem; --btn-px: 2.1rem; font-size: 1.06rem; min-height: 56px; }
.btn--sm { --btn-py: .68rem; --btn-px: 1.15rem; font-size: .86rem; min-height: 42px; }

.btn__icon { display: inline-flex; margin-right: .1rem; }
.btn__icon svg { width: 20px; height: 20px; }

/* ==========================================================================
   5. SEÇÃO: HEADER
   ========================================================================== */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color var(--dur-mid) var(--ease),
              border-color var(--dur-mid) var(--ease),
              backdrop-filter var(--dur-mid) var(--ease);
}
.site-header.is-scrolled {
  background: rgba(4, 7, 15, .82);
  backdrop-filter: blur(12px) saturate(1.1);
  -webkit-backdrop-filter: blur(12px) saturate(1.1);
  border-bottom-color: var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  min-height: 76px;
}

.site-header__brand { display: block; flex: 0 0 auto; }
.site-header__brand picture,
.site-footer__brand picture { display: block; }
.site-header__brand img {
  width: auto;
  height: 42px;
  object-fit: contain;
}

.site-nav { display: flex; align-items: center; gap: var(--sp-7); }

.site-nav__list { display: flex; align-items: center; gap: var(--sp-6); }
.site-nav__list a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;           /* alvo de toque confortável */
  font-family: var(--font-display);
  font-size: .96rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color var(--dur-btn) var(--ease);
}
.site-nav__list a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 10px;
  width: 100%; height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-btn) var(--ease);
}
.site-nav__list a:hover { color: var(--text-primary); }
.site-nav__list a:hover::after { transform: scaleX(1); }

/* Botão hambúrguer (mobile) */
.nav-toggle {
  display: none;
  width: 48px; height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 20px; height: 2px;
  background: var(--text-primary);
  transition: transform var(--dur-mid) var(--ease), opacity var(--dur-fast) var(--ease);
}
.nav-toggle__bars { position: relative; }
.nav-toggle__bars::before,
.nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after  { top: 6px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after  { transform: translateY(-6px) rotate(-45deg); }

/* ==========================================================================
   6. SEÇÃO: HERO
   ========================================================================== */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 95vh;
  min-height: 95svh;
  padding-top: 76px;
  overflow: hidden;
  isolation: isolate;
}

.hero__media { position: absolute; inset: 0; z-index: var(--z-media); }
/* <picture> é inline por padrão: sem display:block a altura 100% do <img>
   não resolve e a foto deixa de cobrir a seção. */
.hero__media picture { display: block; width: 100%; height: 100%; }
.hero__img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 62% 50%;
}

.hero__scrim {
  position: absolute; inset: 0;
  z-index: var(--z-scrim);
  background:
    linear-gradient(90deg, rgba(4,7,15,.94) 0%, rgba(4,7,15,.84) 45%, rgba(4,7,15,.45) 74%, rgba(4,7,15,.3) 100%),
    linear-gradient(0deg, rgba(4,7,15,.85) 0%, rgba(4,7,15,0) 42%);
}

.hero__inner {
  position: relative;
  z-index: var(--z-content);
  padding-block: var(--sp-9);
}

.hero__title {
  font-size: var(--fs-h1);
  max-width: 14.5em;          /* ~26 caracteres por linha: 3 linhas no desktop */
  text-transform: uppercase;
}
.hero__hl { color: var(--accent); }

/* selo da marca sobre a foto, perto da máquina */
.hero__badge {
  position: absolute;
  right: var(--gutter);
  bottom: 14%;
  z-index: 2;
  padding: .55rem .8rem;
  background: rgba(255, 255, 255, .94);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-float);
  line-height: 0;
}
.hero__badge img { width: 100px; height: auto; }

.hero__sub {
  margin-top: var(--sp-5);
  max-width: 46ch;
  font-size: var(--fs-lead);
  color: var(--text-secondary);
}

.hero__actions { margin-top: var(--sp-7); }

.hero__micro,
.final-cta__micro {
  margin-top: var(--sp-4);
  font-size: var(--fs-micro);
  font-weight: 500;
  color: var(--text-primary);
}

.hero__scroll {
  position: absolute;
  left: 50%; bottom: 2.2rem;
  z-index: var(--z-content);
  transform: translateX(-50%);
  width: 44px; height: 44px;
  display: grid; place-items: center;
}
.hero__scroll-line {
  display: block;
  width: 1px; height: 34px;
  background: linear-gradient(180deg, transparent, var(--accent));
  animation: scroll-cue 2.4s var(--ease) infinite;
}
@keyframes scroll-cue {
  0%   { opacity: 0; transform: scaleY(.35); transform-origin: top; }
  45%  { opacity: 1; transform: scaleY(1);   transform-origin: top; }
  100% { opacity: 0; transform: scaleY(1);   transform-origin: bottom; }
}

/* ==========================================================================
   7. SEÇÃO: SERVIÇOS
   Componente autocontido: todas as regras dos cards — inclusive responsivas
   e de motion — vivem neste bloco.

   Anatomia
     .service-card__media      foto em faixa + galeria + título sobreposto
       .service-card__slides     pilha de fotos (crossfade)
       .service-card__progress   barras da galeria (só desktop com mouse)
       .service-card__caption    índice + título sobre a foto
     .service-card__body       descrição + link de orçamento

   Estados (desktop ≥ 1200px com mouse)
     repouso     3 cards iguais, descrição visível
     ativo       card expande, galeria roda, foto ganha brilho
     comprimido  vizinhos estreitam e recolhem a descrição
   Mobile e tablet: sem hover — foto principal fixa, descrição sempre visível.
   ========================================================================== */
.services {
  background: var(--bg-primary);
  padding-block: var(--section-y);
}

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
  margin-top: var(--sp-8);
}

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

/* --- Foto + galeria --- */
.service-card__media {
  position: relative;
  flex: 0 0 auto;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  isolation: isolate;
  background: var(--bg-secondary);
}
.service-card__slides { position: absolute; inset: 0; }
.service-card__slide {
  position: absolute;
  inset: 0;
  display: block;
  opacity: 0;
  transition: opacity var(--dur-slide) var(--ease);
}
.service-card__slide.is-active { opacity: 1; }
/* enquadramento por foto via style inline: --focus, --zoom, --shift */
.service-card__slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: var(--focus, center);
  transform: scale(var(--zoom, 1)) translateY(var(--shift, 0));
  filter: saturate(.92) brightness(.9);
  transition: transform var(--dur-kenburns) linear,
              filter var(--dur-card) var(--ease);
}
/* escurece a base da foto: contraste do título sobreposto */
.service-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(0deg, rgba(6,10,20,.94) 0%, rgba(6,10,20,.6) 36%, rgba(6,10,20,0) 70%);
  pointer-events: none;
}

.service-card__caption {
  position: absolute;
  inset: auto 0 0 0;
  z-index: 2;
  padding: var(--sp-5);
}

.service-card__index {
  display: block;
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--accent);
  margin-bottom: var(--sp-2);
}

.service-card__title {
  max-width: 24ch;
  font-size: clamp(1.25rem, 1.05rem + .5vw, 1.55rem);
  line-height: 1.1;
  letter-spacing: .01em;
  text-transform: uppercase;
  text-wrap: balance;
  overflow-wrap: break-word;
  text-shadow: 0 2px 16px rgba(0,0,0,.55);
}

.service-card__progress { display: none; }

/* --- Texto --- */
.service-card__body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  padding: var(--sp-5);
}

.service-card__desc {
  max-width: 62ch;
  font-size: .94rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.service-card__link {
  margin-top: auto;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  min-height: 40px;
  font-family: var(--font-display);
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  transition: color var(--dur-btn) var(--ease);
}
.service-card__link span { transition: transform var(--dur-btn) var(--ease); }
.service-card__link:hover { color: var(--accent-hover); }
.service-card__link:hover span { transform: translateX(4px); }

.service-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.service-card__tags li {
  padding: .22rem .6rem;
  font-size: .78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--accent-dim);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.services__foot {
  margin-top: var(--sp-8);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-5);
  text-align: center;
}
.services__more { color: var(--text-secondary); }

/* --- Tablet vertical (768–959px): card horizontal, foto à esquerda --- */
@media (min-width: 768px) and (max-width: 959px) {
  .service-card { flex-direction: row; }
  .service-card__media { flex: 0 0 46%; aspect-ratio: auto; min-height: 290px; }
  .service-card__body { justify-content: center; }
  .service-card__link { margin-top: var(--sp-2); }
}

/* --- Hero ≥ 768px: foto na metade direita, nítida e clara;
       o texto fica sobre o fundo escuro à esquerda --- */
@media (min-width: 768px) {
  .hero__media { left: auto; width: 56%; }
  .hero__img { object-position: 50% 58%; }
  /* funde a borda esquerda e o rodapé da foto no fundo, sem linha dura;
     topo levemente escurecido para o menu continuar legível */
  .hero__media::before {
    content: "";
    position: absolute; inset: 0;
    z-index: 1;
    pointer-events: none;
    background:
      linear-gradient(90deg, var(--bg-primary) 0%, rgba(4,7,15,.75) 14%, rgba(4,7,15,.2) 38%, rgba(4,7,15,0) 55%),
      linear-gradient(0deg, var(--bg-primary) 0%, rgba(4,7,15,0) 20%),
      linear-gradient(180deg, rgba(4,7,15,.55) 0%, rgba(4,7,15,0) 18%);
  }
  .hero__scrim { display: none; }
}

/* --- Tablet horizontal (960–1199px): 3 colunas --- */
@media (min-width: 960px) {
  .services__grid { grid-template-columns: repeat(3, 1fr); }
  .service-card__media { aspect-ratio: auto; height: 240px; }
}

/* --- Desktop (≥ 1200px): linha flexível, altura fixa (sem layout shift) --- */
@media (min-width: 1200px) {
  .services__grid { display: flex; gap: 12px; }
  .service-card {
    flex: 1 1 0;
    height: 620px;              /* cabe descrição + lista de itens */
    transition: flex-grow var(--dur-card) var(--ease-out),
                border-color var(--dur-card) var(--ease);
  }
  .service-card__media { height: 300px; }
  .service-card__desc,
  .service-card__link { transition: opacity var(--dur-mid) var(--ease), visibility var(--dur-mid), color var(--dur-btn) var(--ease); }
}

/* --- Interação: só com mouse no desktop --- */
@media (hover: hover) and (min-width: 1200px) {
  .service-card__progress {
    position: absolute;
    top: var(--sp-4);
    left: var(--sp-5);
    right: var(--sp-5);
    z-index: 2;
    display: flex;
    gap: 6px;
    opacity: .5;
    transition: opacity var(--dur-mid) var(--ease);
  }
  .service-card__progress span {
    flex: 1;
    height: 2px;
    overflow: hidden;
    border-radius: 2px;
    background: rgba(255,255,255,.3);
  }
  .service-card__progress span::after {
    content: "";
    display: block;
    width: 0;
    height: 100%;
    background: var(--accent);
  }
  .service-card__progress span.is-done::after { width: 100%; }
  .service-card.is-playing .service-card__progress { opacity: 1; }
  .service-card.is-playing .service-card__progress span.is-active::after {
    animation: svc-progress var(--dur-slide-hold) linear forwards;
  }

  /* comprimido: vizinhos do card ativo */
  .services__grid:hover .service-card,
  .services__grid:has(:focus-visible) .service-card { flex-grow: .85; }
  /* a descrição continua legível (apagada) — o card nunca fica vazio;
     o link sai de cena para a descrição caber inteira na largura menor */
  .services__grid:hover .service-card .service-card__desc,
  .services__grid:has(:focus-visible) .service-card .service-card__desc,
  .services__grid:hover .service-card .service-card__tags,
  .services__grid:has(:focus-visible) .service-card .service-card__tags { opacity: .42; }
  .services__grid:hover .service-card .service-card__link,
  .services__grid:has(:focus-visible) .service-card .service-card__link {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }
  .services__grid:hover .service-card .service-card__slide img,
  .services__grid:has(:focus-visible) .service-card .service-card__slide img {
    filter: saturate(.7) brightness(.62);
  }

  /* ativo (mesma especificidade dos seletores acima, declarado depois).
     Foco só expande via teclado (:focus-visible): o foco deixado por um
     clique de mouse não pode manter o card aberto — isso deslocava o link
     do card vizinho entre o mousedown e o mouseup e o clique se perdia. */
  .services__grid .service-card:hover,
  .services__grid .service-card:has(:focus-visible) {
    flex-grow: 1.7;
    border-color: var(--border-strong);
  }
  .services__grid .service-card:hover .service-card__desc,
  .services__grid .service-card:has(:focus-visible) .service-card__desc,
  .services__grid .service-card:hover .service-card__tags,
  .services__grid .service-card:has(:focus-visible) .service-card__tags,
  .services__grid .service-card:hover .service-card__link,
  .services__grid .service-card:has(:focus-visible) .service-card__link {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .services__grid .service-card:hover .service-card__slide img,
  .services__grid .service-card:has(:focus-visible) .service-card__slide img {
    filter: saturate(1) brightness(1);
  }
  .service-card.is-playing .service-card__slide.is-active img {
    transform: scale(calc(var(--zoom, 1) * 1.07)) translateY(var(--shift, 0));
  }
}

@keyframes svc-progress { to { width: 100%; } }

/* ==========================================================================
   7b. SEÇÃO: COMO TRABALHAMOS
   ========================================================================== */
.process {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding-block: var(--section-y);
}
.process__steps {
  margin: var(--sp-8) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-4);
}
.process__step {
  position: relative;
  padding: var(--sp-6) var(--sp-5);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius-md);
}
.process__num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-num);
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.process__title {
  margin-top: var(--sp-4);
  font-size: var(--fs-h3);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.process__desc {
  margin-top: var(--sp-3);
  font-size: .96rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   7c. SEÇÃO: PROJETOS (galeria de obras reais)
   ========================================================================== */
.projects {
  background: var(--bg-primary);
  padding-block: var(--section-y);
}
.projects__grid {
  margin-top: var(--sp-8);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.projects__item {
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
}
.projects__item picture { display: block; }
.projects__item img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  transition: transform var(--dur-card) var(--ease-out);
}
@media (hover: hover) {
  .projects__item:hover img { transform: scale(1.04); }
}

/* ==========================================================================
   8b. SEÇÃO: ÁREAS DE ATENDIMENTO
   ========================================================================== */
.areas {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding-block: var(--section-y);
}
.areas__inner {
  display: grid;
  grid-template-columns: 5fr 7fr;
  gap: clamp(2.5rem, 1rem + 5vw, 5.5rem);
  align-items: start;
}
.areas__cta { margin-top: var(--sp-7); }
.areas__groups { display: grid; gap: var(--sp-6); }
.areas__group-title {
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--sp-3);
}
.areas__list { display: flex; flex-wrap: wrap; gap: 8px; }
.area-chip {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .55rem .95rem;
  font-size: .95rem;
  font-weight: 500;
  color: var(--text-primary);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.area-chip svg { flex: none; color: var(--accent); }
.area-chip--featured {
  border-color: var(--accent);
  background: var(--accent-dim);
  font-weight: 600;
}

@media (max-width: 1199px) {
  .process__steps { grid-template-columns: repeat(2, 1fr); }
  .projects__grid { grid-template-columns: repeat(3, 1fr); }
  /* 8 fotos em 3 colunas: esconde as 2 últimas para fechar a grade */
  .projects__item:nth-child(n+7) { display: none; }
}
@media (max-width: 767px) {
  .process__steps { grid-template-columns: 1fr; gap: var(--sp-3); }
  .process__step { padding: var(--sp-5); }
  .projects__grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .projects__item:nth-child(n+7) { display: block; }
  .areas__inner { grid-template-columns: 1fr; gap: var(--sp-7); }
  .areas__cta .btn { width: 100%; }
  .area-chip { font-size: .9rem; padding: .5rem .8rem; }
}

/* ==========================================================================
   8. SEÇÃO: QUEM SOMOS
   ========================================================================== */
.about {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding-block: var(--section-y);
}

.about__inner {
  display: grid;
  grid-template-columns: 48fr 52fr;
  gap: clamp(2.5rem, 1rem + 5vw, 5.5rem);
  align-items: center;
}

.about__media { position: relative; }
/* logo emoldurada: só aparece no celular */
.about__brand {
  display: none;
  place-items: center;
  aspect-ratio: 16 / 10;
  padding: var(--sp-7);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.about__brand img { width: min(72%, 280px); height: auto; }
.about__media picture { display: block; }
/* 16:10 preserva a equipe inteira e o veículo — proporções mais fechadas
   amputavam pessoas nas bordas. */
.about__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: 50% 55%;
  border-radius: var(--radius-md);
}
/* Detalhe editorial: moldura deslocada em accent */
.about__media::before {
  content: "";
  position: absolute;
  left: -14px; bottom: -14px;
  width: 46%; height: 58%;
  border-left: 3px solid var(--accent);
  border-bottom: 3px solid var(--accent);
  border-radius: 0 0 0 var(--radius-md);
  pointer-events: none;
}

.about__logo { display: block; margin-bottom: var(--sp-6); }
.about__logo img { width: 180px; height: auto; }

.about__title {
  font-size: var(--fs-h2);
  max-width: 22ch;
}

.about__text {
  margin-top: var(--sp-6);
  display: grid;
  gap: var(--sp-4);
  color: var(--text-secondary);
  max-width: 62ch;
}

/* Pilares editoriais — faixa de largura total abaixo das duas colunas */
.pillars {
  grid-column: 1 / -1;
  margin-top: var(--sp-9);
  padding-top: var(--sp-7);
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-7);
}
.pillar {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-4);
  align-items: baseline;
}
.pillar__num {
  font-family: var(--font-display);
  font-size: var(--fs-num);
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.pillar__title {
  font-size: 1.06rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
}
.pillar__desc {
  margin-top: var(--sp-2);
  font-size: .98rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   9. SEÇÃO: CTA FINAL
   ========================================================================== */
.final-cta {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 640px;
  padding-block: var(--section-y);
  overflow: hidden;
  isolation: isolate;
}

.final-cta__media { position: absolute; inset: 0; z-index: var(--z-media); }
.final-cta__media picture { display: block; width: 100%; height: 100%; }
.final-cta__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 50% 34%;
  filter: saturate(.6);
}

.final-cta__scrim {
  position: absolute; inset: 0;
  z-index: var(--z-scrim);
  background:
    linear-gradient(90deg, rgba(4,7,15,.95) 0%, rgba(4,7,15,.86) 45%, rgba(4,7,15,.55) 100%),
    linear-gradient(0deg, rgba(4,7,15,.9) 0%, rgba(4,7,15,.2) 60%);
}

.final-cta__inner {
  position: relative;
  z-index: var(--z-content);
}

.final-cta__title { font-size: var(--fs-h2); max-width: 20ch; text-transform: uppercase; }
.final-cta__sub {
  margin-top: var(--sp-5);
  font-size: var(--fs-lead);
  color: var(--text-primary);
  max-width: 50ch;
}
.final-cta__text {
  margin-top: var(--sp-4);
  color: var(--text-secondary);
  max-width: 56ch;
}
.final-cta__actions { margin-top: var(--sp-7); }

.capability-strip {
  position: relative;
  z-index: var(--z-content);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3) var(--sp-7);
  margin-top: var(--sp-9);
  padding-top: var(--sp-5);
  width: calc(100% - (var(--gutter) * 2));
  max-width: var(--container-max);
  margin-inline: auto;
  border-top: 1px solid var(--border-strong);
  font-family: var(--font-display);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ==========================================================================
   10. SEÇÃO: FOOTER
   ========================================================================== */
.site-footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border);
  padding-top: var(--sp-9);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--sp-8) var(--sp-6);
  padding-bottom: var(--sp-8);
}

.site-footer__brand img {
  width: auto;
  height: 56px;
  object-fit: contain;
  margin-bottom: var(--sp-5);
}
.site-footer__brand p {
  color: var(--text-muted);
  font-size: .94rem;
  max-width: 38ch;
}

.site-footer__heading {
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: var(--sp-4);
}

.site-footer__col p,
.site-footer__col li { color: var(--text-secondary); font-size: .95rem; }
.site-footer__col li + li { margin-top: var(--sp-2); }
.site-footer__col a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;           /* área de toque em links de texto */
  transition: color var(--dur-btn) var(--ease);
  border-bottom: 1px solid transparent;
}
.site-footer__col a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* Placeholder explícito — informação ainda não fornecida pelo cliente */
.site-footer__todo { color: var(--text-muted); font-size: .88rem; }
.site-footer__todo span {
  display: inline-block;
  padding: .05rem .45rem;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: .8rem;
  letter-spacing: .04em;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sp-3);
  padding-block: var(--sp-5);
  /* folga para o botão flutuante do WhatsApp não cobrir o CNPJ no fim da página */
  padding-bottom: calc(var(--sp-5) + 72px);
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .86rem;
}

/* ==========================================================================
   11. COMPONENTE: WHATSAPP FLUTUANTE
   ========================================================================== */
.wa-float {
  position: fixed;
  right: clamp(1rem, .4rem + 1.6vw, 1.75rem);
  bottom: clamp(1rem, .4rem + 1.6vw, 1.75rem);
  z-index: var(--z-float);
  width: 58px; height: 58px;
  display: grid;
  place-items: center;
  background: var(--whatsapp);
  color: #FFFFFF;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-float);
  transition: background-color var(--dur-btn) var(--ease),
              transform var(--dur-btn) var(--ease);
}
.wa-float:hover { background: var(--whatsapp-hover); transform: translateY(-2px); }

/* ==========================================================================
   12. ANIMAÇÃO DE ENTRADA
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }
/* Sem JS: nada fica escondido */
.no-js .reveal { opacity: 1; transform: none; }

/* ==========================================================================
   13. RESPONSIVO — TABLET (768px – 1199px)
   ========================================================================== */
@media (max-width: 1199px) {
  html { scroll-padding-top: 76px; }

  .about__inner { grid-template-columns: 1fr; gap: var(--sp-8); }
  .about__title { max-width: 26ch; }
  .pillars { grid-template-columns: 1fr; gap: 0; }
  .pillar { padding-block: var(--sp-5); border-bottom: 1px solid var(--border); }

  .site-footer__inner { grid-template-columns: 1fr 1fr; }
}

/* ==========================================================================
   14. RESPONSIVO — MOBILE (até 767px)
   ========================================================================== */
@media (max-width: 767px) {
  :root { --section-y: clamp(3.5rem, 2rem + 8vw, 5rem); }

  .site-header__inner { min-height: 64px; }
  .site-header__brand img { height: 34px; }

  .nav-toggle { display: inline-flex; }

  /* Painel de navegação mobile */
  .site-nav {
    position: fixed;
    inset: 64px 0 auto 0;
    z-index: var(--z-nav);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--sp-4) var(--gutter) var(--sp-6);
    background: rgba(4, 7, 15, .97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur-mid) var(--ease),
                transform var(--dur-mid) var(--ease),
                visibility var(--dur-mid);
  }
  .site-nav.is-open { opacity: 1; transform: none; visibility: visible; }

  .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav__list a {
    display: block;
    padding-block: var(--sp-4);
    font-size: 1.08rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
  }
  .site-nav__list a::after { display: none; }

  .site-nav__cta { margin-top: var(--sp-5); width: 100%; }

  /* Hero — primeira dobra garantida.
     A foto NÃO tem altura fixa: o texto e o botão reservam o espaço deles e
     a foto fica com a sobra. Assim tudo cabe na primeira tela, em celular
     alto ou curto — antes a altura vinha da largura da tela e, em telas
     curtas, o botão era empurrado para fora. */
  .hero {
    display: flex;
    flex-direction: column;
    align-items: stretch;   /* o hero é centralizado no desktop; em coluna isso
                               encolheria a foto até a largura do conteúdo (zero) */
    min-height: 100svh;
    padding-top: 0;
  }
  .hero__media {
    position: relative;
    inset: auto;
    flex: 1 1 auto;
    min-height: 150px;
    max-height: 78vw;
    overflow: hidden;
  }
  .hero__media picture { position: absolute; inset: 0; }
  /* gradiente na própria foto: funde no fundo escuro do texto */
  .hero__media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg,
      var(--bg-primary) 1%, rgba(4,7,15,.55) 18%, rgba(4,7,15,0) 45%, rgba(4,7,15,0) 80%, rgba(4,7,15,.4) 100%);
  }
  .hero__scrim { display: none; }
  /* no celular a logo já aparece no topo; o selo cobriria a máquina */
  .hero__badge { display: none; }

  .hero__inner { flex: 0 0 auto; padding-block: var(--sp-4) var(--sp-6); }
  .hero__title { max-width: none; }   /* "TERRAPLANAGEM E" precisa caber inteiro na linha */
  .hero .eyebrow { margin-bottom: var(--sp-3); }
  .hero__sub { margin-top: var(--sp-4); }
  .hero__actions { margin-top: var(--sp-5); }
  .hero__actions .btn { width: 100%; }
  /* primeira dobra enxuta: botão completo, sem a frase de apoio */
  .hero__micro { display: none; }
  .hero__img { object-position: 50% 50%; }
  .hero__scroll { display: none; }
  /* no celular o botão cabe em uma linha: o ícone verde já diz que é WhatsApp */
  .btn__extra { display: none; }
  /* exceto no hero, onde o texto completo deixa claro o canal */
  .hero .btn__extra { display: inline; }
  .hero .btn--lg { --btn-px: .8rem; gap: .4rem; letter-spacing: .04em; font-size: min(.9rem, 3.7vw); white-space: nowrap; }
  .hero .btn--lg .btn__icon { margin-right: .2rem; }

  .services__foot .btn { width: 100%; }

  /* Quem somos: no celular a moldura emoldura a logo, sem a foto */
  .about__media::before { left: -8px; bottom: -8px; }
  .about__photo { display: none !important; }
  .about__brand { display: grid; }
  .about__logo { display: none; }
  .pillar { grid-template-columns: 1fr; gap: var(--sp-2); }

  /* CTA final */
  .final-cta { min-height: 0; }
  .final-cta__media img { object-position: 52% 40%; }
  .final-cta__actions .btn { width: 100%; }
  .capability-strip { gap: var(--sp-2) var(--sp-5); margin-top: var(--sp-8); }

  /* Footer */
  .site-footer__inner { grid-template-columns: 1fr; gap: var(--sp-7); }
  .site-footer__brand img { height: 46px; }
  .site-footer__bottom { flex-direction: column; }

  /* Flutuante não pode encobrir CTA de largura total */
  .wa-float { width: 54px; height: 54px; }
}

@media (max-width: 380px) {
  .btn { --btn-px: 1.1rem; font-size: .92rem; }
  .btn--lg { --btn-px: 1.2rem; font-size: .95rem; }
}

/* ==========================================================================
   15. ACESSIBILIDADE E MOTION
   ========================================================================== */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .hero__scroll-line { animation: none; opacity: .6; }
}

@media (prefers-contrast: more) {
  :root { --text-secondary: #DCE1EA; --text-muted: #B4BCCA; --border: #33405C; }
}

@media print {
  .site-header, .wa-float, .hero__scroll { display: none; }
  body { background: #fff; color: #000; }
}

/* ==========================================================================
   16. RASTREAMENTO (GTM)
   O clique em qualquer parte de um botão de WhatsApp (ícone, texto, seta)
   é registrado no próprio <a class="cta-whatsapp">. Assim, acionadores de
   clique do GTM — inclusive "Todos os elementos" — sempre enxergam a
   classe e o data-cta-location corretos.
   ========================================================================== */
.cta-whatsapp * { pointer-events: none; }