/* ==========================================================================
   PETROVIVA DO BRASIL — ENERGY CLUB
   style.css  |  build 2026-09-01
   Paleta amostrada diretamente da logomarca entregue pelo cliente.
   ========================================================================== */

/* ---------- 1. FONTE (self-host, 1 arquivo variável, 50 KB) --------------- */
@font-face {
  font-family: 'Archivo';
  /* dupla declaração: a antiga cobre Safari legado, a nova é a sintaxe atual.
     O arquivo é o mesmo — o navegador baixa uma vez só. */
  src: url('../fonts/archivo-var.woff2') format('woff2-variations'),
       url('../fonts/archivo-var.woff2') format('woff2');
  font-weight: 400 900;
  font-stretch: 100% 125%;
  font-style: normal;
  font-display: swap;
}

/* ---------- 2. TOKENS ----------------------------------------------------- */
:root {
  /* superfícies */
  --base:        #000000;
  --surface:     #0e0f12;
  --surface-2:   #16181d;
  --line:        rgba(255, 255, 255, .09);
  --line-strong: rgba(255, 255, 255, .18);

  /* marca (amostrada do logo) */
  --flame:       #d8201c;
  --flame-hot:   #ff4a2e;
  --flame-deep:  #85080d;
  --flame-wash:  rgba(216, 32, 28, .12);

  /* texto */
  --paper:       #ffffff;
  --steel:       #c2c2c3;
  --steel-dim:   #8e9298;
  --steel-mute:  #6b6f76;

  /* medidas */
  --header-h:    72px;
  --gutter:      clamp(20px, 5vw, 64px);
  --maxw:        1180px;
  --radius:      14px;
  --radius-sm:   8px;

  /* escala tipográfica fluida */
  --t-display: clamp(2.5rem, 1.35rem + 5.1vw, 5.25rem);
  --t-h2:      clamp(1.85rem, 1.25rem + 2.5vw, 3rem);
  --t-h3:      clamp(1.15rem, 1.02rem + .55vw, 1.4rem);
  --t-lead:    clamp(1.05rem, .98rem + .42vw, 1.25rem);
  --t-body:    1rem;
  --t-small:   .875rem;

  --ease:      cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 3. BASE ------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--base);
  color: var(--steel);
  font-family: 'Archivo', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: var(--t-body);
  font-weight: 400;
  line-height: 1.65;
  font-variation-settings: 'wdth' 100;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--paper);
  line-height: 1.05;
  letter-spacing: -.02em;
  font-weight: 800;
  font-variation-settings: 'wdth' 116;   /* eco da largura do wordmark */
  text-wrap: balance;
}

p  { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }

:focus-visible {
  outline: 2px solid var(--flame-hot);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.pular-para-conteudo {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 2000;
  background: var(--flame);
  color: #fff;
  padding: 12px 20px;
  font-weight: 600;
}
.pular-para-conteudo:focus { left: 8px; top: 8px; }

/* ---------- 4. BOTÕES ----------------------------------------------------- */
.btn {
  --btn-bg: var(--flame);
  --btn-fg: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;                       /* alvo de toque confortável */
  padding: 13px 30px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 700;
  font-size: .9rem;
  font-variation-settings: 'wdth' 106;
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background-color .22s var(--ease), border-color .22s var(--ease),
              transform .18s var(--ease), box-shadow .22s var(--ease);
}
.btn--grande { min-height: 56px; padding: 17px 40px; font-size: .98rem; }
.btn--fantasma {
  --btn-bg: transparent;
  --btn-fg: var(--paper);
  border-color: var(--line-strong);
  backdrop-filter: blur(6px);
}
.btn--escuro { --btn-bg: #000; --btn-fg: #fff; }
.btn--bloco  { width: 100%; }

@media (hover: hover) {                   /* evita hover grudado no toque */
  .btn:hover {
    background: var(--flame-hot);
    transform: translateY(-2px);
    box-shadow: 0 12px 30px -8px rgba(216, 32, 28, .55);
  }
  .btn--fantasma:hover {
    background: rgba(255, 255, 255, .07);
    border-color: var(--paper);
    box-shadow: none;
  }
  .btn--escuro:hover { background: #17181d; box-shadow: 0 12px 30px -8px rgba(0, 0, 0, .7); }
}
.btn:active { transform: translateY(0); }

/* ---------- 5. CABEÇALHO -------------------------------------------------- */
.topo {
  position: fixed;
  inset: 0 0 auto;
  z-index: 900;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color .3s var(--ease), border-color .3s var(--ease);
}
.topo[data-fixo='sim'] {
  background: rgba(0, 0, 0, .92);
  border-bottom-color: var(--line);
}

.topo__linha {
  display: flex;
  align-items: center;
  gap: 28px;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.marca { display: block; flex: 0 0 auto; }
.marca img { width: 168px; height: auto; }

.menu { margin-left: auto; }
.menu__lista { display: flex; gap: 32px; }
.menu__lista a {
  position: relative;
  display: inline-block;
  padding: 6px 0;
  font-size: .95rem;
  font-weight: 500;
  color: var(--steel-dim);
  transition: color .2s var(--ease);
}
.menu__lista a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--flame);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}
.menu__lista a:hover,
.menu__lista a[aria-current='true'] { color: var(--paper); }
.menu__lista a[aria-current='true']::after { transform: scaleX(1); }

.topo__acoes { display: flex; align-items: center; gap: 12px; }
.topo .btn { min-height: 42px; padding: 10px 22px; font-size: .8rem; }

.hamburguer {
  display: none;
  width: 46px; height: 46px;
  align-items: center; justify-content: center;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--paper);
  cursor: pointer;
}
.hamburguer span {
  display: block;
  width: 20px; height: 2px;
  background: currentColor;
  position: relative;
  transition: background-color .2s var(--ease);
}
.hamburguer span::before,
.hamburguer span::after {
  content: '';
  position: absolute; left: 0;
  width: 20px; height: 2px;
  background: currentColor;
  transition: transform .28s var(--ease), top .2s var(--ease);
}
.hamburguer span::before { top: -6px; }
.hamburguer span::after  { top:  6px; }
.hamburguer[aria-expanded='true'] span { background: transparent; }
.hamburguer[aria-expanded='true'] span::before { top: 0; transform: rotate(45deg); }
.hamburguer[aria-expanded='true'] span::after  { top: 0; transform: rotate(-45deg); }

/* gaveta mobile */
.gaveta {
  position: fixed;
  inset: var(--header-h) 0 0;
  z-index: 890;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 28px var(--gutter) 40px;
  background: rgba(0, 0, 0, .98);
  transform: translateY(-12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .26s var(--ease), transform .26s var(--ease), visibility .26s;
}
.gaveta[data-aberta='sim'] { opacity: 1; visibility: visible; transform: none; }
.gaveta a.gaveta__item {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 1.3rem;
  font-weight: 700;
  font-variation-settings: 'wdth' 110;
  color: var(--paper);
}
.gaveta .btn { margin-top: 28px; }

/* ---------- 6. HERO (dividido: texto | palco) ---------------------------- */
.hero {
  position: relative;
  isolation: isolate;
  padding: calc(var(--header-h) + clamp(48px, 7vw, 96px)) 0 clamp(64px, 8vw, 104px);
  overflow: hidden;
}
/* brasa de fundo: estática, custo zero, segura a seção sem o vídeo ocupá-la */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(78% 62% at 12% 88%, rgba(216, 32, 28, .20) 0%, transparent 60%),
    radial-gradient(60% 50% at 88% 8%, rgba(140, 150, 170, .07) 0%, transparent 62%);
}

.hero__grade {
  display: grid;
  grid-template-columns: 1.12fr .88fr;
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
}

.hero h1 {
  max-width: 16ch;
  font-size: clamp(2.4rem, 1.35rem + 3.6vw, 4.15rem);
  font-weight: 900;
  font-variation-settings: 'wdth' 118;
  letter-spacing: -.03em;
}
.hero__lead {
  max-width: 42ch;
  margin-top: 26px;
  font-size: var(--t-lead);
  color: var(--steel);
}
.hero__acoes {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 40px;
}
.hero__acoes .btn { flex: 1 1 240px; padding-inline: 28px; }

/* o palco: moldura com brilho próprio, sem scrim por cima */
.hero__palco {
  position: relative;
  margin: 0;
  width: 100%;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  /* o poster vive aqui, não só no atributo do vídeo: assim a moldura nunca
     aparece preta quando o vídeo não é carregado (celular, dados economizados) */
  background: #000 url('../img/hero-poster.jpg') center / cover no-repeat;
  box-shadow: 0 30px 80px -30px rgba(216, 32, 28, .45),
              0 2px 0 0 rgba(255, 255, 255, .05) inset;
}
.hero__palco video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity .9s var(--ease);
}
.hero__palco video[data-pronto='sim'] { opacity: 1; }
/* fio quente na base, para a moldura não terminar num corte seco */
.hero__palco::after {
  content: '';
  position: absolute;
  inset: auto 0 0;
  height: 34%;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, .55) 100%);
  pointer-events: none;
}

/* entrada única e orquestrada — o único movimento não pedido da página */
.hero__conteudo > *, .hero__palco {
  opacity: 0;
  transform: translateY(18px);
  animation: entrar .8s var(--ease) forwards;
}
.hero h1           { animation-delay: .05s; }
.hero .hero__lead  { animation-delay: .16s; }
.hero .hero__acoes { animation-delay: .26s; }
.hero__palco       { animation-delay: .12s; }
@keyframes entrar { to { opacity: 1; transform: none; } }

/* ---------- 7. SEÇÕES ----------------------------------------------------- */
.secao {
  padding: clamp(72px, 9vw, 128px) 0;
}
.secao--superficie { background: var(--surface); }

.secao__cabeca { max-width: 60ch; margin-bottom: clamp(40px, 5vw, 64px); }
.secao__cabeca h2 { font-size: var(--t-h2); }
.secao__cabeca p  { margin-top: 16px; font-size: var(--t-lead); color: var(--steel-dim); }

/* ---------- 8. OS QUATRO VERBOS (sequência real da marca) ----------------- */
.trilha {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.passo {
  position: relative;
  padding: 34px 28px 38px;
  background: var(--base);
}
.passo__n {
  display: block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--flame);
  margin-bottom: 18px;
}
.passo h3 {
  font-size: var(--t-h3);
  font-variation-settings: 'wdth' 122;
  text-transform: uppercase;
  letter-spacing: .01em;
}
.passo p { margin-top: 10px; font-size: var(--t-small); color: var(--steel-dim); }

/* ---------- 9. CARDS DE OPORTUNIDADE ------------------------------------- */
.grade {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 290px), 1fr));
  gap: 20px;
}

.card {
  display: flex;
  flex-direction: column;         /* rodapé alinhado nos 3 cards */
  padding: 34px 30px 30px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}
@media (hover: hover) {
  .card:hover { border-color: rgba(216, 32, 28, .55); transform: translateY(-4px); }
}

.card__icone {
  width: 46px; height: 46px;
  display: grid; place-items: center;
  margin-bottom: 22px;
  background: var(--flame-wash);
  border-radius: 10px;
  color: var(--flame-hot);
}
.card__icone svg { width: 24px; height: 24px; fill: currentColor; }
.card h3 { font-size: var(--t-h3); }
.card p  { margin-top: 12px; font-size: .95rem; color: var(--steel-dim); }

.card__valor {
  margin-top: auto;               /* encosta no rodapé do card */
  padding-top: 26px;
}
.card__valor b {
  display: block;
  font-size: clamp(1.9rem, 1.4rem + 1.6vw, 2.4rem);
  font-weight: 900;
  font-variation-settings: 'wdth' 112;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--paper);
}
.card__valor span {
  display: block;
  margin-top: 8px;
  font-size: .8rem;
  color: var(--steel-mute);
}
.card__valor--texto b { font-size: var(--t-h3); color: var(--flame-hot); }

/* ---------- 10. INDICAÇÃO ------------------------------------------------- */
.indicacao {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.indicacao__lista { margin-top: 30px; display: grid; gap: 18px; }
.indicacao__lista li {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 14px;
  align-items: start;
  font-size: .98rem;
  color: var(--steel-dim);
}
.indicacao__lista svg { width: 20px; height: 20px; margin-top: 3px; fill: var(--flame); }

.painel {
  padding: 38px 34px;
  background: linear-gradient(160deg, var(--surface-2) 0%, #0a0b0d 100%);
  border: 1px solid var(--line);
  border-left: 3px solid var(--flame);
  border-radius: var(--radius);
}
.painel__rotulo { font-size: .8rem; color: var(--steel-mute); }
.painel__valor {
  display: block;
  margin: 6px 0 4px;
  font-size: clamp(2.4rem, 1.8rem + 2.4vw, 3.4rem);
  font-weight: 900;
  font-variation-settings: 'wdth' 112;
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--paper);
}
.painel hr { margin: 26px 0; border: 0; border-top: 1px solid var(--line); }
.painel p { font-size: .92rem; color: var(--steel-dim); }

/* ---------- 11. PERGUNTAS (details nativo, zero JS) ---------------------- */
.faq { max-width: 76ch; display: grid; gap: 10px; }
.faq details {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 24px;
  font-weight: 600;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '';
  flex: 0 0 auto;
  width: 11px; height: 11px;
  border-right: 2px solid var(--flame);
  border-bottom: 2px solid var(--flame);
  transform: rotate(45deg) translateY(-3px);
  transition: transform .25s var(--ease);
}
.faq details[open] summary::after { transform: rotate(-135deg) translateY(-3px); }
.faq details[open] summary { color: var(--flame-hot); }
.faq .faq__corpo { padding: 0 24px 22px; font-size: .95rem; color: var(--steel-dim); }

/* ---------- 12. CHAMADA FINAL -------------------------------------------- */
.chamada {
  position: relative;
  isolation: isolate;
  padding: clamp(72px, 9vw, 120px) 0;
  text-align: center;
  background:
    radial-gradient(90% 140% at 50% 0%, var(--flame) 0%, var(--flame-deep) 62%, #3d0407 100%);
}
.chamada h2 { font-size: var(--t-h2); }
.chamada p  { max-width: 52ch; margin: 18px auto 0; font-size: var(--t-lead); color: rgba(255,255,255,.9); }
.chamada .btn { margin-top: 38px; }

/* ---------- 13. RODAPÉ ---------------------------------------------------- */
.rodape { padding: clamp(56px, 7vw, 88px) 0 32px; background: var(--base); border-top: 1px solid var(--line); }
.rodape__topo {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 44px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
}
.rodape__marca img { width: 130px; height: auto; margin-bottom: 20px; }
.rodape__marca p { font-size: .92rem; color: var(--steel-mute); max-width: 38ch; }

.rodape h4 {
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--steel-mute);
  margin-bottom: 16px;
  font-variation-settings: 'wdth' 108;
}
.rodape__links { display: grid; gap: 11px; }
.rodape__links a { font-size: .94rem; color: var(--steel-dim); transition: color .2s var(--ease); }
.rodape__links a:hover { color: var(--paper); }

.lema {
  margin: 40px 0 26px;
  font-size: clamp(1.1rem, .85rem + 1.1vw, 1.6rem);
  font-weight: 900;
  font-variation-settings: 'wdth' 120;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: var(--steel);
  text-align: center;
}
.lema b { color: var(--flame); font-weight: inherit; }

.miudos { max-width: 82ch; margin-inline: auto; text-align: center; font-size: .8rem; color: var(--steel-mute); }
.miudos + .miudos { margin-top: 12px; color: #4a4d52; }

/* ---------- 14. BARRA FIXA DE AÇÃO (celular) ----------------------------- */
.barra-acao {
  position: fixed;
  inset: auto 0 0;
  z-index: 880;
  display: none;
  padding: 12px var(--gutter) calc(12px + env(safe-area-inset-bottom));
  background: rgba(0, 0, 0, .96);
  border-top: 1px solid var(--line);
  transform: translateY(110%);
  transition: transform .3s var(--ease);
}
.barra-acao[data-visivel='sim'] { transform: none; }

/* ---------- 15. RESPONSIVO ----------------------------------------------- */
@media (max-width: 1020px) {
  .trilha { grid-template-columns: repeat(2, 1fr); }
  .indicacao { grid-template-columns: 1fr; }
  .rodape__topo { grid-template-columns: 1fr 1fr; }
  .rodape__marca { grid-column: 1 / -1; }
}

@media (max-width: 860px) {
  :root { --header-h: 64px; }
  .menu, .topo__acoes .btn { display: none; }
  .hamburguer { display: flex; margin-left: auto; }
  .marca img { width: 142px; }
  .hero__grade { grid-template-columns: 1fr; gap: 34px; }
  .hero__palco { aspect-ratio: 4 / 3; order: 2; }
  .hero__acoes .btn { flex: 1 1 100%; }
  .barra-acao { display: block; }
  .rodape { padding-bottom: 104px; }
}

@media (max-width: 560px) {
  .trilha { grid-template-columns: 1fr; }
  .rodape__topo { grid-template-columns: 1fr; gap: 32px; }
  .painel { padding: 30px 24px; }
}

/* trava de rolagem com a gaveta aberta */
body[data-travado='sim'] { overflow: hidden; }

/* ---------- 16. MOVIMENTO REDUZIDO --------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .hero__conteudo > *, .hero__palco { opacity: 1; transform: none; }
}

/* ---------- 17. IMPRESSÃO ------------------------------------------------- */
@media print {
  .topo, .gaveta, .barra-acao, .hero__palco { display: none !important; }
  body { background: #fff; color: #000; }
  h1, h2, h3, h4 { color: #000; }
}