/* ============================================================
   Nux — site institucional · estilo light corporativo
   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; }

.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); }

.barra-acento { width: 56px; height: 6px; background: var(--aqua); border-radius: 3px; margin-bottom: 22px; }

.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: 640px; }
.subtitulo-secao + .subtitulo-secao { margin-top: 16px; }
.secao--petroleo .subtitulo-secao { color: #b9c7cb; }

/* destaque da palavra-chave (marca-texto aqua) */
.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: 32px; }
.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); }

/* ---------- Hero ---------- */
.hero { padding: 52px 0 76px; position: relative; overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1.05fr 0.95fr; 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 .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;
}

/* painel visual (mock Seaprume) */
.hero__visual { position: relative; }
.hero__visual::before {
  content: ''; position: absolute; width: 340px; height: 340px;
  right: -30px; top: -50px; z-index: 0;
  background: radial-gradient(circle, rgba(86, 226, 242, 0.30), transparent 70%);
}
.painel {
  position: relative; z-index: 1;
  background: var(--petroleo); color: var(--platinum);
  border-radius: 20px; padding: 28px; box-shadow: var(--sombra-forte);
}
.painel__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; }
.painel__marca { font-weight: 900; letter-spacing: 0.5px; color: #fff; font-size: 1.05rem; }
.painel__status { display: inline-flex; align-items: center; gap: 7px; font-size: 0.8rem; color: #9fd9e6; }
.painel__status i { width: 8px; height: 8px; border-radius: 50%; background: var(--aqua); }
.painel__titulo { font-size: 0.9rem; color: #8aa0a6; margin-bottom: 20px; }
.meta { margin-bottom: 16px; }
.meta__topo { display: flex; justify-content: space-between; font-size: 0.9rem; font-weight: 600; margin-bottom: 7px; }
.bar { height: 8px; 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: 8px; margin-top: 22px; }
.chips span { font-size: 0.78rem; font-weight: 700; color: var(--aqua); border: 1px solid rgba(86, 226, 242, 0.35); padding: 5px 12px; border-radius: 999px; }

/* ---------- Grid de dores ---------- */
.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); }

/* ---------- Quem somos (pilares) ---------- */
.pilares { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 38px; }
.pilar { background: var(--branco); border: 1px solid var(--linha); border-radius: var(--raio); padding: 26px; }
.pilar h3 { font-size: 1.12rem; font-weight: 800; color: var(--teal); margin-bottom: 6px; }
.pilar p { color: var(--texto-suave); font-size: 0.97rem; }

/* ---------- Serviços ---------- */
.grid-servicos { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 44px; }
.card-servico { background: var(--branco); border: 1px solid var(--linha); border-radius: var(--raio); padding: 26px; transition: box-shadow var(--transicao), transform var(--transicao); }
.card-servico:hover { box-shadow: var(--sombra); transform: translateY(-3px); }
.card-servico__num { display: inline-block; font-size: 0.8rem; font-weight: 900; letter-spacing: 1px; color: var(--aqua); background: var(--petroleo); padding: 4px 10px; border-radius: 8px; margin-bottom: 14px; }
.card-servico h3 { font-size: 1.06rem; font-weight: 800; margin-bottom: 8px; line-height: 1.2; }
.card-servico p { color: var(--texto-suave); font-size: 0.95rem; }

/* ---------- Método (passos) ---------- */
.passos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 44px; }
.passo { position: relative; padding-top: 16px; }
.passo__num { font-size: 3rem; font-weight: 900; color: var(--aqua); line-height: 1; }
.passo h3 { font-size: 1.25rem; font-weight: 800; margin: 8px 0; }
.passo p { color: var(--texto-suave); }

/* ---------- Bloco Seaprume ---------- */
.seaprume {
  margin-top: 56px; background: var(--petroleo); color: var(--platinum);
  border-radius: 20px; padding: 48px; box-shadow: var(--sombra-forte);
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center;
}
.seaprume h3 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 900; line-height: 1.12; margin-bottom: 14px; }
.seaprume h3 span { color: var(--aqua); }
.seaprume p { color: #b9c7cb; margin-bottom: 24px; }
.seaprume .nota { font-size: 0.92rem; color: #8aa0a6; margin-top: 16px; }
.modulos { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 20px; }
.modulos li { list-style: none; padding-left: 26px; position: relative; color: var(--platinum); font-weight: 600; }
.modulos li::before { content: '→'; position: absolute; left: 0; color: var(--aqua); font-weight: 800; }

/* ---------- 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; }

/* ---------- 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: 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%; }
  .hero { padding: 36px 0 60px; }
  .hero__grid { grid-template-columns: 1fr; gap: 38px; }
  .hero h1 { font-size: clamp(2rem, 8vw, 2.7rem); }
  .grid-dor, .passos, .grid-cases, .pilares, .grid-servicos { grid-template-columns: 1fr; }
  .seaprume { grid-template-columns: 1fr; padding: 32px; }
  .modulos { grid-template-columns: 1fr 1fr; }
  .rodape__grid { grid-template-columns: 1fr; }
}

@media (min-width: 881px) and (max-width: 1020px) {
  .grid-cases, .grid-servicos { grid-template-columns: repeat(2, 1fr); }
  .hero__grid { gap: 36px; }
}