/* ============================================================
   Nux — site institucional · estrutura V4 em 8 blocos
   (hero, mercado, dor, solução em 3 camadas, como funciona,
   provas, oferta, FAQ + CTA). Compartilhado com /diagnostico/,
   que usa as bases: container, btn, cabecalho, eyebrow, rodape.
   Paleta do manual: petróleo / teal / aqua / platinum
   ============================================================ */

@font-face {
  font-family: 'Archivo';
  src: url('../assets/fonts/Archivo.woff2') format('woff2');
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --petroleo: #002128;
  --teal: #2b628c;
  --teal-escuro: #204d6e;
  --aqua: #56e2f2;
  --platinum: #ededed;
  --branco: #ffffff;

  --texto: #002128;
  --texto-suave: #4a5b60;
  --linha: #e1e6e7;

  --container: 1120px;
  --raio: 14px;
  --sombra: 0 10px 30px rgba(0, 33, 40, 0.08);
  --sombra-forte: 0 16px 44px rgba(0, 33, 40, 0.14);
  --transicao: 0.2s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: 'Archivo', system-ui, sans-serif;
  color: var(--texto);
  background: var(--branco);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container--estreito { max-width: 780px; }

.secao { padding: 96px 0; }
.secao--platinum { background: var(--platinum); }
.secao--petroleo { background: var(--petroleo); color: var(--platinum); }

.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 14px;
}
.secao--petroleo .eyebrow { color: var(--aqua); }

.titulo-secao {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.5px;
  margin-bottom: 18px;
}
.subtitulo-secao { font-size: 1.12rem; color: var(--texto-suave); max-width: 660px; }
.secao--petroleo .subtitulo-secao { color: #b9c7cb; }

.marca {
  background: var(--aqua);
  color: var(--petroleo);
  padding: 0 0.12em;
  border-radius: 4px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}
.destaque-teal { color: var(--teal); }
.secao--petroleo .destaque-aqua { color: var(--aqua); }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 800; font-size: 1rem;
  padding: 14px 26px; border-radius: 999px;
  cursor: pointer; border: 2px solid transparent;
  transition: transform var(--transicao), background var(--transicao), color var(--transicao);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn--primario { background: var(--teal); color: #fff; }
.btn--primario:hover { background: var(--teal-escuro); }
.btn--fantasma { background: transparent; color: var(--petroleo); border-color: var(--petroleo); }
.btn--fantasma:hover { background: var(--petroleo); color: #fff; }
.btn--aqua { background: var(--aqua); color: var(--petroleo); }
.btn--aqua:hover { background: #7eeaf6; }
.secao--petroleo .btn--fantasma { color: #fff; border-color: rgba(255,255,255,0.5); }
.secao--petroleo .btn--fantasma:hover { background: #fff; color: var(--petroleo); }

/* ---------- Header ---------- */
.cabecalho {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--linha);
}
.cabecalho__inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.cabecalho__logo img { height: 26px; }
.nav { display: flex; align-items: center; gap: 30px; }
.nav a { font-weight: 600; color: var(--texto-suave); transition: color var(--transicao); }
.nav a:hover { color: var(--petroleo); }
.cabecalho__cta { display: flex; align-items: center; gap: 16px; }
.menu-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 6px; }
.menu-toggle span { display: block; width: 26px; height: 3px; background: var(--petroleo); border-radius: 2px; margin: 5px 0; transition: var(--transicao); }

/* CTAs dentro do menu — só existem com o menu aberto no celular.
   As cores precisam ser reafirmadas: `.nav a` tem a mesma especificidade
   que `.btn--primario` e apagaria o texto do botão. */
.nav__cta { display: none; }
.nav__cta .btn--primario { color: #fff; }
.nav__cta .btn--primario:hover { color: #fff; }
.nav__cta .btn--fantasma { color: var(--petroleo); }
.nav__cta .btn--fantasma:hover { color: #fff; }

/* ---------- WhatsApp flutuante ---------- */
.wpp {
  position: fixed; right: 22px; bottom: 22px; z-index: 90;
  display: inline-flex; align-items: center; gap: 10px;
  background: var(--aqua); color: var(--petroleo);
  font-weight: 800; font-size: 0.98rem;
  padding: 14px 22px; border-radius: 999px;
  box-shadow: var(--sombra-forte);
  transition: opacity .3s ease, transform .3s ease, visibility .3s ease;
}
.wpp svg { width: 22px; height: 22px; fill: currentColor; flex: 0 0 auto; }
.wpp:hover { transform: translateY(-2px); background: #7eeaf6; }
.wpp.is-oculto { opacity: 0; visibility: hidden; transform: translateY(14px); pointer-events: none; }
@media (prefers-reduced-motion: reduce) { .wpp { transition: none; } }

/* ============================================================
   1 · HERO
   ============================================================ */
.hero { padding: 56px 0 84px; position: relative; overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1.02fr 0.98fr; gap: 56px; align-items: center; }

.hero__badge {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: 700; font-size: 0.86rem; color: var(--teal);
  background: #eaf2f8; border: 1px solid #d7e6f0;
  padding: 7px 15px; border-radius: 999px; margin-bottom: 22px;
}
.hero__badge i { width: 8px; height: 8px; border-radius: 50%; background: var(--aqua); box-shadow: 0 0 0 3px rgba(86, 226, 242, 0.25); }
.hero h1 {
  font-size: clamp(2.1rem, 4.3vw, 3.4rem);
  font-weight: 900; line-height: 1.06; letter-spacing: -1px; margin-bottom: 20px;
}
.hero__rotador { display: grid; }
.hero__rotador .frase {
  grid-area: 1 / 1;
  opacity: 0; transform: translateY(10px);
  transition: opacity .6s ease, transform .6s ease;
  pointer-events: none;
}
.hero__rotador .frase.is-ativa { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .hero__rotador .frase { transition: none; transform: none; }
}
.hero .lead { font-size: 1.12rem; color: var(--texto-suave); max-width: 520px; margin-bottom: 26px; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 24px; }
.hero__prova {
  font-size: 0.95rem; color: var(--texto-suave);
  border-left: 4px solid var(--aqua); padding-left: 14px; max-width: 480px;
}

/* visual: foto do cliente (duotone) + painel Seaprume flutuante */
.hero__visual { position: relative; }
.hero__visual::before {
  content: ''; position: absolute; width: 360px; height: 360px;
  right: -40px; top: -60px; z-index: 0;
  background: radial-gradient(circle, rgba(86, 226, 242, 0.30), transparent 70%);
}
.hero__foto {
  position: relative; z-index: 1;
  border-radius: 20px; overflow: hidden;
  box-shadow: var(--sombra-forte);
  aspect-ratio: 4 / 5;
  background: var(--petroleo);
}
.hero__foto img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(58%) contrast(1.05) brightness(1.02);
}
/* overlay duotone petróleo -> teal -> aqua para casar com a marca */
.hero__foto::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(155deg,
      rgba(0, 33, 40, 0.62) 0%,
      rgba(43, 98, 140, 0.34) 52%,
      rgba(86, 226, 242, 0.14) 100%);
}
.painel {
  position: absolute; z-index: 2;
  left: -28px; bottom: -26px; width: 300px;
  background: var(--petroleo); color: var(--platinum);
  border: 1px solid rgba(86, 226, 242, 0.22);
  border-radius: 18px; padding: 22px; box-shadow: var(--sombra-forte);
}
.painel__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.painel__marca { font-weight: 900; letter-spacing: 0.5px; color: #fff; font-size: 1.02rem; }
.painel__status { display: inline-flex; align-items: center; gap: 7px; font-size: 0.76rem; color: #9fd9e6; }
.painel__status i { width: 8px; height: 8px; border-radius: 50%; background: var(--aqua); }
.painel__titulo { font-size: 0.84rem; color: #8aa0a6; margin-bottom: 16px; }
.meta { margin-bottom: 13px; }
.meta__topo { display: flex; justify-content: space-between; font-size: 0.84rem; font-weight: 600; margin-bottom: 6px; }
.bar { height: 7px; background: rgba(255, 255, 255, 0.12); border-radius: 999px; overflow: hidden; }
.bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--teal), var(--aqua)); border-radius: 999px; }
.chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.chips span { font-size: 0.72rem; font-weight: 700; color: var(--aqua); border: 1px solid rgba(86, 226, 242, 0.35); padding: 4px 10px; border-radius: 999px; }

/* ============================================================
   2 · MERCADO
   ============================================================ */
.grid-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; }
.stat {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(86, 226, 242, 0.18);
  border-radius: var(--raio); padding: 30px 26px;
}
.stat__num { display: block; font-size: clamp(2.4rem, 5vw, 3.2rem); font-weight: 900; color: var(--aqua); line-height: 1; letter-spacing: -1px; margin-bottom: 12px; }
.stat__num sup { font-size: 0.9rem; top: -1.4em; color: #6f8a90; }
.stat p { color: #b9c7cb; font-size: 0.98rem; }
.stats__fonte { margin-top: 20px; font-size: 0.8rem; color: #6f8a90; }

/* ============================================================
   3 · DOR
   ============================================================ */
.grid-dor { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 40px; }
.card-dor {
  background: var(--branco); border: 1px solid var(--linha);
  border-radius: var(--raio); padding: 28px;
}
.card-dor h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 8px; }
.card-dor h3 span { color: var(--teal); }
.card-dor p { color: var(--texto-suave); }

/* ============================================================
   4 · SOLUÇÃO EM 3 CAMADAS
   ============================================================ */
.camadas { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
.camada {
  position: relative;
  background: var(--branco); border: 1px solid var(--linha);
  border-radius: var(--raio); padding: 30px 28px 26px;
  transition: box-shadow var(--transicao), transform var(--transicao);
}
.camada:hover { box-shadow: var(--sombra); transform: translateY(-3px); }
.camada__num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 12px;
  font-size: 1.05rem; font-weight: 900; letter-spacing: 0.5px;
  color: var(--aqua); background: var(--petroleo); margin-bottom: 16px;
}
.camada h3 { font-size: 1.28rem; font-weight: 800; margin-bottom: 10px; }
.camada p { color: var(--texto-suave); font-size: 0.98rem; margin-bottom: 18px; }
.camada__tag { display: inline-block; font-size: 0.76rem; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; color: var(--teal); background: #eaf2f8; padding: 5px 12px; border-radius: 999px; }
.camada--destaque { background: var(--petroleo); border-color: var(--petroleo); color: var(--platinum); }
.camada--destaque .camada__num { background: rgba(86, 226, 242, 0.14); }
.camada--destaque p { color: #b9c7cb; }
.camada--destaque .camada__tag { color: var(--petroleo); background: var(--aqua); }

/* ============================================================
   5 · COMO FUNCIONA
   ============================================================ */
.como__grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.passos-lista { list-style: none; margin: 34px 0 30px; }
.passos-lista li { display: flex; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--linha); }
.passos-lista li:last-child { border-bottom: 0; }
.passos-lista__n {
  flex: 0 0 auto;
  width: 40px; height: 40px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 1.1rem;
  color: var(--petroleo); background: var(--aqua);
}
.passos-lista h3 { font-size: 1.14rem; font-weight: 800; margin-bottom: 4px; }
.passos-lista p { color: var(--texto-suave); font-size: 0.98rem; }
.como__foto { position: relative; border-radius: 20px; overflow: hidden; box-shadow: var(--sombra-forte); aspect-ratio: 4 / 5; background: var(--petroleo); }
.como__foto img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(58%) contrast(1.05); }
.como__foto::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(155deg, rgba(0, 33, 40, 0.55) 0%, rgba(43, 98, 140, 0.30) 55%, rgba(86, 226, 242, 0.12) 100%);
}

/* ============================================================
   6 · PROVAS (cases)
   ============================================================ */
.grid-cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
.card-case {
  background: var(--branco); border: 1px solid var(--linha);
  border-radius: var(--raio); padding: 26px; transition: box-shadow var(--transicao), transform var(--transicao);
}
.card-case:hover { box-shadow: var(--sombra); transform: translateY(-3px); }
.card-case h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 6px; }
.card-case .tag { display: inline-block; width: 30px; height: 4px; background: var(--aqua); border-radius: 2px; margin-bottom: 14px; }
.card-case p { color: var(--texto-suave); font-size: 0.98rem; }

/* ============================================================
   7 · OFERTA
   ============================================================ */
.grid-oferta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
.card-oferta {
  display: flex; flex-direction: column; align-items: flex-start;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(86, 226, 242, 0.18);
  border-radius: var(--raio); padding: 30px 28px;
}
.card-oferta h3 { font-size: 1.2rem; font-weight: 800; color: #fff; margin-bottom: 10px; }
.card-oferta p { color: #b9c7cb; font-size: 0.98rem; margin-bottom: 22px; flex: 1 1 auto; }
.card-oferta--destaque { background: rgba(86, 226, 242, 0.08); border-color: rgba(86, 226, 242, 0.45); }
.oferta__nota { margin-top: 22px; font-size: 0.92rem; color: #8aa0a6; }

/* ============================================================
   8 · FAQ
   ============================================================ */
.faq { margin-top: 36px; }
.faq__item {
  border: 1px solid var(--linha); border-radius: var(--raio);
  padding: 4px 22px; margin-bottom: 12px; background: var(--branco);
  transition: box-shadow var(--transicao);
}
.faq__item[open] { box-shadow: var(--sombra); }
.faq__item summary {
  list-style: none; cursor: pointer;
  font-weight: 800; font-size: 1.08rem; padding: 18px 0;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: '+'; font-size: 1.5rem; font-weight: 400; color: var(--teal);
  transition: transform var(--transicao); line-height: 1;
}
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { color: var(--texto-suave); padding: 0 0 20px; max-width: 62ch; }

/* ---------- CTA final ---------- */
.cta-final { text-align: center; }
.cta-final h2 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 900; line-height: 1.08; margin-bottom: 16px; max-width: 18ch; margin-inline: auto; }
.cta-final p { color: #b9c7cb; font-size: 1.15rem; margin-bottom: 32px; }
.cta-final .botoes { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- Footer ---------- */
.rodape { background: var(--petroleo); color: #b9c7cb; padding: 60px 0 36px; }
.rodape__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
.rodape__logo img { height: 28px; margin-bottom: 16px; }
.rodape__marca p { max-width: 320px; font-size: 0.96rem; }
.rodape h4 { color: #fff; font-size: 0.82rem; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 14px; }
.rodape ul { list-style: none; }
.rodape ul li { margin-bottom: 10px; }
.rodape ul a:hover { color: var(--aqua); }
.rodape__base { border-top: 1px solid rgba(255,255,255,0.12); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 0.86rem; color: #7e9398; }

/* ============================================================
   Responsivo
   ============================================================ */
@media (max-width: 980px) {
  .hero__grid, .como__grid { grid-template-columns: 1fr; gap: 40px; }
  .como__foto { order: -1; max-width: 460px; }
  .painel { position: static; width: 100%; margin-top: 18px; left: 0; bottom: 0; }
  .hero__foto { aspect-ratio: 16 / 10; }
}

@media (max-width: 880px) {
  .secao { padding: 68px 0; }
  .nav, .cabecalho__cta .btn { display: none; }
  .menu-toggle { display: block; }
  .nav--aberto {
    display: flex; flex-direction: column; gap: 0;
    position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--linha); padding: 12px 24px 20px;
  }
  .nav--aberto a { padding: 14px 0; border-bottom: 1px solid var(--linha); width: 100%; }
  .nav--aberto .nav__cta { display: flex; flex-direction: column; gap: 10px; width: 100%; padding-top: 18px; }
  .nav--aberto .nav__cta a { padding: 14px 24px; border-bottom: 0; justify-content: center; }

  /* flutuante vira só o ícone, para não cobrir o conteúdo */
  .wpp { padding: 0; width: 56px; height: 56px; justify-content: center; right: 16px; bottom: 16px; }
  .wpp__txt { display: none; }
  .hero { padding: 36px 0 60px; }
  .hero h1 { font-size: clamp(2rem, 8vw, 2.7rem); }
  .grid-dor, .grid-stats, .camadas, .grid-cases, .grid-oferta { grid-template-columns: 1fr; }
  .rodape__grid { grid-template-columns: 1fr; }
}

@media (min-width: 881px) and (max-width: 1020px) {
  .grid-cases { grid-template-columns: repeat(2, 1fr); }
}