/* ============================================
   IMAGINE GROUP — design tokens (marca: preto e branco)
   ink        #0a0a0a  fundo principal, preto quase puro
   ink-2      #141412  preto secundário (cards sobre fundo escuro)
   white      #ffffff  branco puro — usado com moderação, para peso
   bone       #f4f3ef  branco quente — corpo de texto claro sobre escuro
   grey       #8f8e89  cinza médio — texto secundário
   line       rgba(255,255,255,.12)  divisores sobre fundo escuro
   paper      #efeeea  seção clara (branco da marca), quase neutro
   paper-ink  #111110  texto sobre a seção clara
============================================ */

:root{
  --ink: #0a0a0a;
  --ink-2: #141412;
  --white: #ffffff;
  --bone: #f4f3ef;
  --grey: #918f8a;
  --grey-dim: #5c5a56;
  --line: rgba(255,255,255,0.14);
  --line-soft: rgba(255,255,255,0.08);
  --paper: #efeeea;
  --paper-ink: #111110;
  --paper-line: rgba(17,17,16,0.14);

  --display: "Anton", "Arial Narrow", sans-serif;
  --body: "Work Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: "Space Mono", monospace;

  --container: 1160px;
  --ease: cubic-bezier(.22,.8,.32,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
ul, ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3{ margin:0; font-family: var(--display); text-transform: uppercase; letter-spacing: 0.01em; }
p{ margin:0; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  .reveal{ opacity:1 !important; transform:none !important; }
}

:focus-visible{
  outline: 2px solid var(--white);
  outline-offset: 3px;
}

/* film grain overlay */
.grain{
  position: fixed; inset:0; pointer-events:none; z-index: 600;
  opacity: 0.045; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* scroll progress bar */
.progress{
  position: fixed; top:0; left:0; height:2px; width:0%;
  background: var(--white);
  z-index: 700;
  transition: width 0.1s linear;
}

.tag{
  display:inline-block;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--white);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 0.35em 0.9em;
  margin-bottom: 1.2rem;
}
.tag--light{ color: var(--paper-ink); border-color: var(--paper-line); }

.btn{
  display:inline-flex;
  align-items:center;
  gap:0.5em;
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.95em 1.7em;
  border-radius: 3px;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s ease, color 0.2s ease, border-color .2s ease;
}
.btn--solid{ background: var(--white); color: var(--ink); }
.btn--solid:hover{ background: var(--bone); transform: translateY(-2px); }
.btn--ghost{ border-color: var(--grey-dim); color: var(--bone); }
.btn--ghost:hover{ border-color: var(--white); transform: translateY(-2px); }

/* ---------------- scroll reveal ---------------- */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible{ opacity: 1; transform: translateY(0); }
.reveal:nth-child(2){ transition-delay: 0.08s; }
.reveal:nth-child(3){ transition-delay: 0.16s; }
.reveal:nth-child(4){ transition-delay: 0.24s; }

/* ---------------- NAV ---------------- */
.nav{
  position: sticky; top:0; z-index: 100;
  display:flex; align-items:center; justify-content:space-between;
  padding: 1.1rem clamp(1.25rem, 4vw, 3rem);
}
/* backdrop-filter lives on a pseudo-element, not on .nav itself, because a
   filter on an ancestor creates a new containing block for position:fixed
   descendants (like the mobile .nav__links panel), which would otherwise
   confine it to the header's own height instead of the full viewport. */
.nav::before{
  content:"";
  position:absolute; inset:0; z-index:-1;
  background: rgba(10,10,10,0.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.nav__logo img{ height: 22px; width:auto; }
.nav__links{ display:flex; align-items:center; gap: 2.1rem; }
.nav__links a{
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--grey);
  transition: color 0.2s ease;
}
.nav__links a:hover{ color: var(--bone); }
.nav__cta{
  color: var(--ink) !important;
  background: var(--white);
  border-radius: 100px;
  padding: 0.55em 1.2em;
  transition: transform 0.2s var(--ease), background 0.2s ease;
}
.nav__cta:hover{ background: var(--bone); transform: translateY(-2px); }
.nav__toggle{ display:none; }

/* ---------------- HERO ---------------- */
.hero{
  position: relative;
  overflow:hidden;
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1.25rem, 4vw, 3rem) 3rem;
  isolation: isolate;
}
.hero__spot{
  position:absolute; inset: -10%;
  z-index: -1;
  background: radial-gradient(520px circle at var(--x, 72%) var(--y, 18%),
    rgba(255,255,255,0.10), rgba(255,255,255,0.03) 42%, transparent 65%);
  transition: background 0.25s ease;
}
.hero__inner{
  max-width: var(--container);
  margin: 0 auto;
  display:grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items:center;
}
.eyebrow{
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey);
  margin-bottom: 1rem;
}
.hero__title{
  font-size: clamp(3.2rem, 8vw, 6.4rem);
  line-height: 0.92;
  margin-bottom: 1.4rem;
  color: var(--white);
}
.hero__title span{ display:block; }
.hero__lede{
  max-width: 46ch;
  color: var(--grey);
  font-size: 1.05rem;
  margin-bottom: 2rem;
}
.hero__lede strong{ color: var(--bone); }
.hero__actions{ display:flex; flex-wrap:wrap; gap: 1rem; }

.hero__photo{
  position:relative;
  margin:0;
  border-radius: 4px;
  overflow:hidden;
  aspect-ratio: 4/5;
  box-shadow: 0 30px 70px -20px rgba(0,0,0,0.7);
  border: 1px solid var(--line-soft);
}
.hero__photo::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(10,10,10,0) 50%, rgba(10,10,10,0.65) 100%);
}
.hero__photo img{ width:100%; height:100%; object-fit: cover; object-position: 50% 20%; transition: transform 0.6s var(--ease); }
.hero__photo:hover img{ transform: scale(1.04); }
.hero__photo figcaption{
  position:absolute; left:1rem; bottom:0.9rem; z-index:1;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing:0.06em;
  color: var(--bone); opacity:0.85;
}

.scroll-cue{
  display:flex; justify-content:center;
  margin-top: clamp(2.5rem, 6vw, 4rem);
}
.scroll-cue span{
  width: 1px; height: 46px;
  background: linear-gradient(var(--white), transparent);
  display:block;
  animation: cue 1.8s ease-in-out infinite;
}
@keyframes cue{
  0%{ transform: scaleY(0.4); opacity:0.4; transform-origin: top; }
  50%{ transform: scaleY(1); opacity:1; transform-origin: top; }
  100%{ transform: scaleY(0.4); opacity:0.4; transform-origin: bottom; }
}

/* ---------------- MARQUEE ---------------- */
.marquee{
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
  background: var(--ink);
  padding: 1.1rem 0;
}
.marquee__track{
  display:flex;
  width: max-content;
  gap: 1.5rem;
  animation: marquee 26s linear infinite;
}
.marquee:hover .marquee__track{ animation-play-state: paused; }
.marquee__track span{
  font-family: var(--display);
  text-transform: uppercase;
  font-size: clamp(1.1rem, 2.4vw, 1.6rem);
  color: var(--grey-dim);
  white-space: nowrap;
  display:flex; align-items:center; gap:1.5rem;
}
.marquee__track span:nth-child(odd){ color: var(--bone); }
@keyframes marquee{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

/* ---------------- MISSION STRIP ---------------- */
.mission{
  border-bottom: 1px solid var(--line-soft);
  padding: clamp(2.4rem, 6vw, 3.6rem) clamp(1.25rem, 4vw, 3rem);
}
.mission p{
  max-width: 900px;
  margin: 0 auto;
  text-align:center;
  font-size: clamp(1.15rem, 2.6vw, 1.6rem);
  line-height: 1.5;
  color: var(--bone);
  font-weight: 400;
}

/* ---------------- ABOUT ---------------- */
.about{ padding: clamp(4rem, 8vw, 7rem) clamp(1.25rem, 4vw, 3rem); }
.about__inner{
  max-width: var(--container);
  margin:0 auto;
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 6vw, 5rem);
}
.about__head h2{
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  line-height: 1.08;
  color: var(--white);
  margin-bottom: 2rem;
}
.about__photo{
  margin:0;
  border-radius: 4px;
  overflow:hidden;
  border: 1px solid var(--line-soft);
  position: relative;
}
.about__photo img{ width:100%; height:auto; display:block; filter: grayscale(1) contrast(1.05); }
.about__photo figcaption{
  position:absolute; left:0.9rem; bottom:0.7rem;
  font-family: var(--mono); font-size: 0.68rem; letter-spacing:0.05em;
  color: var(--bone); opacity:0.85;
  text-shadow: 0 1px 6px rgba(0,0,0,0.6);
}
.about__body p{ color: var(--grey); margin-bottom: 1.1rem; max-width: 60ch; }
.capabilities{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem 1.5rem;
  margin-top: 1.8rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line-soft);
}
.capabilities li{
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: var(--bone);
  padding-left: 1.1em;
  position: relative;
}
.capabilities li::before{
  content:"";
  position:absolute; left:0; top:0.5em;
  width:6px; height:6px;
  background: var(--white);
  border-radius: 50%;
}

/* ---------------- PROCESS ---------------- */
.process{
  padding: clamp(4rem, 8vw, 7rem) clamp(1.25rem, 4vw, 3rem);
  border-top: 1px solid var(--line-soft);
}
.process__head{ max-width: var(--container); margin: 0 auto 3rem; }
.process__head h2{
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  color: var(--white);
  margin: 0 0 1rem;
}
.process__head p{ color: var(--grey); max-width: 46ch; }

.process__list{
  max-width: var(--container);
  margin: 0 auto;
  position: relative;
  counter-reset: step;
}
.process__list::before{
  content:"";
  position:absolute; left: 2.05rem; top: 0.5rem; bottom: 0.5rem;
  width:1px;
  background: var(--line);
}
.process__step{
  display:grid;
  grid-template-columns: 4.1rem 1fr;
  gap: 1.5rem;
  padding: 1.9rem 0;
  border-bottom: 1px solid var(--line-soft);
  position: relative;
}
.process__step:last-child{ border-bottom:none; }
.process__num{
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--white);
  width: 2.6rem; height: 2.6rem;
  border-radius: 50%;
  display:flex; align-items:center; justify-content:center;
  align-self: start;
  transition: transform 0.35s var(--ease);
}
.process__step:hover .process__num{ transform: scale(1.12); }
.process__content{ max-width: 62ch; }
.process__content .card__brand{ margin-bottom:0.6rem; display:inline-block; }
.process__content h3{
  font-size: 1.4rem;
  color: var(--white);
  margin-bottom: 0.7rem;
}
.process__content p{ color: var(--grey); font-size: 0.98rem; }
.card__brand{
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-dim);
}
.card__list{ display:flex; flex-direction:column; gap: 0.5rem; counter-reset: item; margin-top:0.5rem; }
.card__list li{
  font-size: 0.92rem;
  color: var(--grey);
  padding-left: 1.6em;
  position: relative;
  counter-increment: item;
}
.card__list li::before{
  content: counter(item, decimal-leading-zero);
  position:absolute; left:0; top:0;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--grey-dim);
}

/* ---------------- SERVICES (grid resumo) ---------------- */
.services{
  background: var(--paper);
  color: var(--paper-ink);
  padding: clamp(4rem, 8vw, 7rem) clamp(1.25rem, 4vw, 3rem);
}
.services__head{ max-width: var(--container); margin: 0 auto 2.8rem; }
.services__head h2{
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  line-height: 1.1;
  color: var(--paper-ink);
}
.services__grid{
  max-width: var(--container);
  margin: 0 auto;
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--paper-line);
  border: 1px solid var(--paper-line);
}
.card{
  background: var(--paper);
  padding: clamp(1.6rem, 2.4vw, 2.2rem);
  min-height: 190px;
  display:flex;
  flex-direction:column;
  transition: background 0.25s ease, transform 0.25s ease;
}
.card:hover{ background: var(--ink); color: var(--bone); transform: translateY(-4px); }
.card:hover h3, .card:hover .card__index{ color: var(--white); }
.card:hover p{ color: var(--grey); }
.card__index{
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--grey-dim);
  margin-bottom: 1.6rem;
  transition: color 0.25s ease;
}
.card h3{
  font-size: 1.15rem;
  margin-bottom: 0.7rem;
  color: var(--paper-ink);
  transition: color 0.25s ease;
}
.card p{ color: #57554e; font-size: 0.9rem; transition: color 0.25s ease; }

/* ---------------- CTA BANNER ---------------- */
.cta{
  padding: clamp(4rem, 10vw, 7rem) clamp(1.25rem, 4vw, 3rem);
  text-align:center;
  display:flex; flex-direction:column; align-items:center; gap: 2.2rem;
  background:
    radial-gradient(600px circle at 50% 0%, rgba(255,255,255,0.06), transparent 60%),
    var(--ink);
}
.cta__text{
  font-family: var(--display);
  text-transform: uppercase;
  font-size: clamp(1.6rem, 4.4vw, 3rem);
  line-height: 1.15;
  max-width: 18ch;
  color: var(--grey-dim);
}
.cta__text span{ color: var(--white); }

/* ---------------- FOOTER ---------------- */
.footer{
  border-top: 1px solid var(--line-soft);
  padding: clamp(3rem, 6vw, 4.5rem) clamp(1.25rem, 4vw, 3rem) 1.5rem;
}
.footer__inner{
  max-width: var(--container);
  margin: 0 auto;
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
}
.footer__brand img{ height: 20px; margin-bottom: 1rem; }
.footer__brand p{ color: var(--grey); max-width: 32ch; font-size: 0.92rem; margin-bottom: 1.1rem; }
.footer__top{
  font-family: var(--mono); font-size: 0.78rem; letter-spacing:0.05em;
  color: var(--bone); border-bottom: 1px solid var(--line); width: fit-content;
  padding-bottom: 2px; transition: border-color 0.2s ease, color 0.2s ease;
}
.footer__top:hover{ color: var(--white); border-color: var(--white); }
.footer__col{ display:flex; flex-direction:column; gap: 0.6rem; }
.footer__col a{
  font-size: 0.95rem;
  color: var(--bone);
  width: fit-content;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.footer__col a:hover{ color: var(--white); border-color: var(--white); }
.footer__whats{ font-family: var(--mono); font-size: 1.1rem !important; }
.footer__hint{ color: var(--grey); font-size: 0.8rem; }
.footer__base{
  max-width: var(--container);
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-soft);
  color: var(--grey);
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
}

/* ---------------- BACK TO TOP ---------------- */
.back-to-top{
  position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 200;
  width: 3rem; height: 3rem;
  border-radius: 50%;
  background: var(--white); color: var(--ink);
  border: none; cursor: pointer;
  font-size: 1.1rem;
  display:flex; align-items:center; justify-content:center;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  box-shadow: 0 10px 30px -10px rgba(0,0,0,0.6);
}
.back-to-top.is-visible{ opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover{ transform: translateY(-3px); }

/* ---------------- RESPONSIVE ---------------- */
@media (max-width: 860px){
  .nav__links{
    position: fixed; inset: 62px 0 0 0;
    background: var(--ink);
    flex-direction:column;
    align-items:flex-start;
    padding: 2rem 1.5rem;
    gap: 1.6rem;
    transform: translateX(100%);
    transition: transform 0.3s var(--ease);
  }
  .nav__links.is-open{ transform: translateX(0); }
  .nav__links a{ font-size: 1rem; }
  .nav__toggle{
    display:flex; flex-direction:column; justify-content:center; gap:5px;
    width: 34px; height: 34px; background:none; border:none; cursor:pointer;
  }
  .nav__toggle span{ height:2px; width:100%; background: var(--bone); transition: transform 0.25s ease, opacity 0.25s ease; }
  .nav__toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
  .nav__toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
  .nav__toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

  .hero__inner{ grid-template-columns: 1fr; }
  .hero__photo{ order:-1; aspect-ratio: 16/10; }

  .about__inner{ grid-template-columns: 1fr; }
  .about__photo{ margin-top: 1.6rem; max-width: 320px; }
  .capabilities{ grid-template-columns: 1fr 1fr; }

  .process__step{ grid-template-columns: 3.2rem 1fr; gap: 1rem; }
  .process__list::before{ left: 1.6rem; }
  .process__num{ width: 2.1rem; height:2.1rem; font-size:0.82rem; }

  .services__grid{ grid-template-columns: 1fr 1fr; }

  .footer__inner{ grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 480px){
  .capabilities{ grid-template-columns: 1fr; }
  .services__grid{ grid-template-columns: 1fr; }
  .footer__inner{ grid-template-columns: 1fr; }
}