/* ===== Tokens ===== */
:root{
  --bg: #0a0a0b;           /* near-black, deeper than Charcoal for a cleaner premium base */
  --bg-soft: #131415;      /* Charcoal Black — used for panels/footer */
  --surface: #34373A;      /* Graphite Gray */
  --text: #F6F6F6;         /* Soft Snow */
  --text-muted: #8b8e91;
  --accent: #6fd8ff;       /* Neon Blue — replaces Sunset Amber per updated direction */
  --accent-hover: #9fe6ff;
  --accent-soft: rgba(111,216,255,0.14);
  --accent-glow: rgba(111,216,255,0.5);

  --font-head: "Space Grotesk", "Inter", sans-serif;
  --font-body: "Inter", sans-serif;

  --container: 1180px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3{ font-family: var(--font-head); font-weight:600; margin:0 0 .5em; letter-spacing:-0.01em; }

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== Header ===== */
.site-header{
  /* absolute, nao fixed: o header sobrepoe o hero sem ocupar espaco no fluxo,
     mas rola junto com a pagina em vez de ficar preso sobre as fotos claras */
  position: absolute;
  top:0; left:0; right:0;
  z-index: 40;
  padding: 28px 32px;
  display:flex;
}
/* Lockup conforme o logo original (PETECA_LOGO_A.pdf): a baseline reta do
   desenho alinha com a baseline do texto e o "C" desce abaixo dela.
   Proporcoes oficiais, em multiplos da cap-height: mark = 1.446, gap = 0.339.
   O font-size fica na .brand para header e footer escalarem juntos. */
.brand{
  display: inline-flex;
  align-items: baseline;
  gap: 0.237em;
  color: var(--text);
  font-size: 22px;
}
.brand-mark{
  position: relative;
  top: 0.464em;
  height: 1.476em;
  width: auto;
  fill: currentColor;
}
.brand-word{
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1em;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.sr-only{
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ===== Side WhatsApp tab ===== */
.side-cta{
  position: fixed;
  top: 50%;
  right: 0;
  transform: translateY(-50%) rotate(180deg);
  writing-mode: vertical-rl;
  background: var(--accent);
  color: #131415;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 20px 12px;
  border-radius: 6px 0 0 6px;
  z-index: 40;
  transition: padding .25s ease, background .25s ease;
}
.side-cta:hover{ padding-right: 18px; background:var(--accent-hover); }

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 15px 30px;
  border-radius: 999px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.btn-primary{ background: var(--accent); color:#141414; }
.btn-primary:hover{ transform: translateY(-2px); background:var(--accent-hover); }
.btn-secondary{ border:1px solid rgba(246,246,246,0.25); color: var(--text); }
.btn-secondary:hover{ border-color: var(--accent); color: var(--accent); }

/* ===== Hero ===== */
.hero{
  position: relative;
  min-height: 100vh;
  display:flex;
  flex-direction: column;
  align-items:center;
  justify-content:center;
  gap: 12px;
  overflow: hidden;
  padding: 90px 32px 0;
  background: radial-gradient(ellipse 70% 60% at 50% 42%, var(--bg-soft) 0%, var(--bg) 65%);
}
.hero-rings{
  position:relative;
  flex-shrink: 0;
  width: 100%;
  height: min(46vw, 420px);
  display:flex;
  align-items:center;
  justify-content:center;
  pointer-events:none;
}

/* ---- centragem: núcleo + anéis presos na borda externa (física de membrana) ----
   a geometria de cada anel é recalculada quadro a quadro em main.js: a membrana respira
   e, no meio do movimento, só o ponto de vista muda (zenital -> lateral). Nada é escalado
   por transform, então o traço nunca afina nem se rompe. */
.disc{
  width: min(40vw, 400px);
  height: min(40vw, 400px);
  overflow: visible;
}
.ring{
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.5;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}
.core{
  fill: var(--accent);
  filter: drop-shadow(0 0 10px var(--accent-glow));
}

.hero-content{
  position: relative;
  z-index: 2;
  text-align:center;
  max-width: 780px;
}
.hero-subtitle{
  color: var(--text-muted);
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  letter-spacing: 0.03em;
  max-width: 460px;
  margin: 0 auto 44px;
}

.scroll-hint{
  position:absolute;
  bottom: 36px;
  left:50%;
  transform: translateX(-50%);
}
.scroll-hint span{
  display:block;
  width:1px;
  height:44px;
  background: linear-gradient(to bottom, transparent, var(--text-muted));
  animation: hint-move 2.4s ease-in-out infinite;
}
@keyframes hint-move{
  0%{ transform: scaleY(0.3); opacity:0; }
  40%{ opacity:1; }
  100%{ transform: scaleY(1); opacity:0; }
}

/* ===== Sections ===== */
.section{ padding: 140px 0; }
.eyebrow{
  display:block;
  font-family: var(--font-head);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.section h2{
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  max-width: 640px;
}
.section-lead{
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 56px;
}

/* Quem somos */
.section-grid{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 72px;
  align-items:start;
}
.section-text p{
  color: var(--text-muted);
  font-size: 1.02rem;
  margin: 0 0 1.15em;
}
.section-text p:first-of-type{
  color: var(--text);
  font-size: 1.15rem;
}
.section-media img{
  border-radius: 10px;
  position: sticky;
  top: 120px;
  aspect-ratio: 4/5;
  object-fit: cover;
}

/* Production strip */
.production-strip{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--bg);
}
.production-strip img{
  width:100%;
  height: 320px;
  object-fit: cover;
  filter: grayscale(0.15);
}

/* Clientes */
/* Mural de clientes: duas faixas em loop continuo, uma para cada lado.
   Cada faixa contem a mesma lista duplicada, e a animacao desloca exatamente
   -50% (a largura de uma copia), entao o loop nao tem emenda. O espacamento
   e feito com margin nos <img> — nao com gap na faixa — senao a costura entre
   as duas copias ficaria com um vao diferente do resto.
   Cada logo ocupa uma caixa identica com object-fit, para marcas largas
   (Master) e estreitas (DK) terem o mesmo peso optico. */
.logo-marquee{
  /* o respiro acima do mural e o mesmo que sobra abaixo dele ate a secao
     Contato — por isso .clientes zera o proprio padding-bottom, deixando o
     padding-top do Contato (o mesmo valor) fazer o espaco de baixo. */
  margin-top: 140px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
/* .section.clientes e nao .clientes: a media query redefine .section{padding}
   depois deste ponto, e com a mesma especificidade ela venceria no mobile. */
.section.clientes{ padding-bottom: 0; }
.logo-row{
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 9%, #000 91%, transparent);
}
.logo-track{
  display: flex;
  width: max-content;
  animation: logo-scroll 104s linear infinite;
  will-change: transform;
}
.logo-track-reverse{
  animation-direction: reverse;
  animation-duration: 118s;
}
.logo-set{
  display: flex;
  align-items: center;
}
/* Todo logo ocupa a mesma caixa; o que muda e o quanto ele preenche.
   --f (definido por logo no HTML) encolhe a caixa de conteudo na mesma
   proporcao nos dois eixos, entao o object-fit escala o logo por esse fator
   independente de qual lado o limita. O fator foi calculado pela area de
   tinta de cada marca — normalizar pelo bounding box deixava marcas cheias
   (QVS) enormes e marcas com muito ar (ETM, Spyder) minusculas. */
.logo-set img{
  box-sizing: border-box;
  width: 180px;
  height: 58px;
  padding: calc((1 - var(--f, 1)) * 29px) calc((1 - var(--f, 1)) * 90px);
  margin: 0 20px;
  object-fit: contain;
  object-position: center;
  opacity: 0.78;
}
@keyframes logo-scroll{
  to{ transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce){
  .logo-track{ animation: none; }
  .logo-row{ overflow-x: auto; }
  .logo-row .logo-set[aria-hidden="true"]{ display: none; }
}

/* Contato */
.contact-actions{
  display:flex;
  gap: 18px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer{
  border-top: 1px solid rgba(246,246,246,0.08);
  padding: 48px 0;
}
.footer-grid{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.site-footer .brand{ opacity: 0.75; font-size: 14px; }
.footer-legal p{
  margin:0 0 4px;
  color: var(--text-muted);
  font-size: 13px;
}
.footer-legal{ text-align:right; }

/* ===== Reveal on scroll ===== */
.reveal{
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s ease, transform .8s ease;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 860px){
  .section{ padding: 96px 0; }
  .section-grid{ grid-template-columns: 1fr; gap: 40px; }
  .section-media img{ position: static; aspect-ratio: 16/10; }
  .production-strip{ grid-template-columns: 1fr 1fr; }
  .production-strip img:nth-child(3){ display:none; }
  .logo-set img{ width: 136px; height: 44px; margin: 0 14px;
    padding: calc((1 - var(--f, 1)) * 22px) calc((1 - var(--f, 1)) * 68px); }
  .logo-marquee{ gap: 18px; margin-top: 96px; }
  .footer-grid{ flex-direction: column; align-items:flex-start; }
  .footer-legal{ text-align:left; }
  .side-cta{ font-size: 12px; padding: 16px 10px; }
}
@media (prefers-reduced-motion: reduce){
  .scroll-hint span{ animation: none !important; }
}