/* ============================================================
   binatural.dev — Estúdio de desenvolvimento web
   Palette: teal atelier (cold engineering ⨯ warm craft)
   ============================================================ */

:root{
  --abyss:   #06181C;
  --surface: #0C2329;
  --surface-2:#0F2D34;
  --bone:    #EDE6D8;
  --bone-dim:#9FB0AE;
  --coral:   #FF6B57;
  --gold:    #E8B84B;
  --line:    rgba(237,230,216,.12);
  --line-2:  rgba(237,230,216,.06);

  --display: "Fraunces", Georgia, serif;
  --sans:    "Space Grotesk", system-ui, sans-serif;
  --mono:    "JetBrains Mono", ui-monospace, monospace;

  --pad: clamp(1.25rem, 5vw, 6rem);
  --maxw: 1320px;
}

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

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  background:var(--abyss);
  color:var(--bone);
  font-family:var(--sans);
  font-size:clamp(1rem,.55vw + .85rem,1.12rem);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* full-page interactive dust layer (WebGL) */
.dust{
  position:fixed; inset:0;
  width:100%; height:100%;
  z-index:0; pointer-events:none;
}

/* faint vertical thread lines across the page */
body::before{
  content:"";
  position:fixed; inset:0;
  pointer-events:none; z-index:0;
  background:
    linear-gradient(90deg, var(--line-2) 1px, transparent 1px) 0 0 / 25vw 100%;
  opacity:.35;
}

a{ color:inherit; text-decoration:none; }
::selection{ background:var(--coral); color:var(--abyss); }

/* ---------- shared ---------- */
.eyebrow,.sec-index,.card__id,.step__num,.nav__brand-tag,.hero__hint,
.foot__meta,.hero__scroll span,.stat__k{
  font-family:var(--mono);
  font-weight:400;
  letter-spacing:.08em;
  text-transform:uppercase;
  font-size:.74rem;
  color:var(--bone-dim);
}

.sec-index{ color:var(--coral); margin-bottom:1.5rem; }

.sec-head{ margin-bottom:clamp(2.5rem,5vw,4.5rem); }
.sec-title{
  font-family:var(--display);
  font-weight:400;
  font-size:clamp(2rem,4.5vw,3.6rem);
  line-height:1.04;
  letter-spacing:-.01em;
}

section{ position:relative; z-index:1; padding:clamp(5rem,12vh,9rem) var(--pad); }

/* ---------- custom cursor ---------- */
.cursor,.cursor-dot{
  position:fixed; top:0; left:0; z-index:9999;
  pointer-events:none; border-radius:50%;
  mix-blend-mode:difference;
  translate:-50% -50%;
}
.cursor{
  width:38px; height:38px;
  border:1px solid var(--bone);
  transition:width .25s ease, height .25s ease, background .25s ease;
}
.cursor-dot{ width:5px; height:5px; background:var(--bone); }
.cursor.is-hover{ width:64px; height:64px; background:rgba(237,230,216,.08); }
body.cursor-ready{ cursor:none; }
body.cursor-ready a,body.cursor-ready button{ cursor:none; }

/* ---------- loader ---------- */
.loader{
  position:fixed; inset:0; z-index:9000;
  background:var(--abyss);
  display:grid; place-content:center; gap:1.5rem;
}
.loader__mark{
  font-family:var(--display);
  font-size:clamp(1.7rem,7vw,4rem);
  letter-spacing:.03em;
  max-width:92vw;
  display:flex; gap:.03em; overflow:hidden;
}
.loader__mark span{ display:inline-block; transform:translateY(110%); }
.loader__bar{ width:min(60vw,260px); height:1px; background:var(--line); overflow:hidden; }
.loader__bar i{ display:block; height:100%; width:0; background:var(--coral); }

/* ---------- nav ---------- */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:800;
  display:flex; align-items:center; justify-content:space-between;
  padding:1.4rem var(--pad);
  mix-blend-mode:difference;
  transition:transform .4s ease;
}
.nav.is-hidden{ transform:translateY(-110%); }
.nav__brand{ display:flex; align-items:baseline; gap:.5rem; }
.nav__brand-mark{ font-family:var(--display); font-size:1.45rem; letter-spacing:.04em; color:var(--bone); }
.nav__links{ display:flex; align-items:center; gap:clamp(1rem,2.4vw,2.4rem); }
.nav__links a{ font-size:.92rem; color:var(--bone); position:relative; }
.nav__links a:not(.nav__cta)::after{
  content:""; position:absolute; left:0; bottom:-4px; height:1px; width:0;
  background:var(--coral); transition:width .3s ease;
}
.nav__links a:not(.nav__cta):hover::after{ width:100%; }
.nav__cta{
  border:1px solid var(--bone); border-radius:100px;
  padding:.5rem 1.1rem; font-size:.85rem;
}
@media(max-width:680px){
  .nav__links a:not(.nav__cta){ display:none; }
}

/* ---------- hero ---------- */
.hero{
  min-height:100svh;
  display:flex; flex-direction:column; justify-content:center;
  padding-top:8rem; padding-bottom:5rem;
  overflow:hidden;
}
.hero__canvas{
  position:absolute; inset:0; width:100%; height:100%;
  z-index:0;
}
/* veil keeps the headline legible over the particle field */
.hero::after{
  content:""; position:absolute; inset:0; z-index:1; pointer-events:none;
  background:linear-gradient(100deg,
    var(--abyss) 22%, rgba(6,24,28,.55) 46%, transparent 68%);
}
@media(max-width:860px){
  .hero::after{
    background:linear-gradient(180deg,
      var(--abyss) 50%, rgba(6,24,28,.55) 72%, transparent 90%);
  }
}
.hero__inner{ position:relative; z-index:2; max-width:var(--maxw); width:100%; margin:0 auto; pointer-events:none; }
.hero__inner a{ pointer-events:auto; }

.eyebrow{ display:inline-flex; align-items:center; gap:.6rem; margin-bottom:1.6rem; }
.eyebrow__node{ width:7px; height:7px; border-radius:50%; background:var(--coral); box-shadow:0 0 12px var(--coral); }

.hero__title{
  font-family:var(--display);
  font-weight:400;
  font-size:clamp(2.6rem,8.5vw,7.2rem);
  line-height:.98;
  letter-spacing:-.02em;
  max-width:14ch;
}
.hero__title em{ font-style:italic; color:var(--gold); }
.line{ display:block; overflow:hidden; }
.line > span{ display:block; }

.hero__lead{
  margin-top:2rem;
  max-width:46ch;
  color:var(--bone-dim);
  font-size:clamp(1.05rem,1.2vw,1.25rem);
}
.hero__actions{ display:flex; flex-wrap:wrap; gap:1rem; margin-top:2.6rem; }
.hero__hint{ margin-top:2.4rem; display:inline-flex; align-items:center; gap:.5rem; }
.hero__hint::before{ content:""; width:24px; height:1px; background:var(--bone-dim); }

.hero__scroll{
  position:absolute; bottom:1.8rem; left:50%; translate:-50% 0;
  display:flex; flex-direction:column; align-items:center; gap:.6rem; z-index:2;
}
.hero__scroll i{ width:1px; height:46px; background:linear-gradient(var(--coral),transparent); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center;
  padding:.95rem 1.7rem; border-radius:100px;
  font-size:.98rem; font-weight:500;
  border:1px solid transparent;
  transition:background .3s ease, color .3s ease, border-color .3s ease;
}
.btn--solid{ background:var(--coral); color:var(--abyss); }
.btn--solid:hover{ background:var(--gold); }
.btn--ghost{ border-color:var(--line); color:var(--bone); }
.btn--ghost:hover{ border-color:var(--bone); }
.magnetic{ will-change:transform; }

/* ---------- manifesto ---------- */
.manifesto{ padding-top:clamp(6rem,14vh,11rem); padding-bottom:clamp(6rem,14vh,11rem); }
.manifesto__text{
  font-family:var(--display);
  font-weight:400;
  font-size:clamp(1.7rem,4.4vw,3.4rem);
  line-height:1.22;
  letter-spacing:-.01em;
  max-width:20ch;
  margin:0 auto;
  text-align:center;
}
.manifesto__text [data-word]{ display:inline-block; }
.manifesto__text .accent{ color:var(--coral); font-style:italic; }

/* ---------- services ---------- */
.services__grid{
  list-style:none;
  display:grid;
  grid-template-columns:repeat(3, 1fr);   /* 3×2 — 6 cards, sem células vazias */
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
@media(max-width:900px){
  .services__grid{ grid-template-columns:repeat(2, 1fr); } /* 2×3 */
}
@media(max-width:560px){
  .services__grid{ grid-template-columns:1fr; }            /* 1 por fileira */
}
.card{
  position:relative;
  background:var(--abyss);
  padding:clamp(1.8rem,3vw,2.8rem);
  min-height:300px;
  display:flex; flex-direction:column;
  transition:background .4s ease;
  overflow:hidden;
}
.card::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(120% 120% at 0% 0%, var(--surface) 0%, transparent 55%);
  opacity:0; transition:opacity .45s ease;
}
.card:hover{ background:var(--surface); }
.card:hover::before{ opacity:1; }
.card__id{ position:relative; }
.card__title{
  position:relative;
  font-family:var(--display); font-weight:400;
  font-size:clamp(1.5rem,2.4vw,2rem);
  margin:auto 0 .8rem; padding-top:2rem;
  letter-spacing:-.01em;
}
.card__desc{ position:relative; color:var(--bone-dim); font-size:1rem; }
.card__line{
  position:relative; margin-top:1.6rem; height:1px; width:100%;
  background:var(--line); overflow:hidden;
}
.card__line::after{
  content:""; position:absolute; inset:0; width:0; background:var(--coral);
  transition:width .5s ease;
}
.card:hover .card__line::after{ width:100%; }

/* ---------- process ---------- */
.process__list{ list-style:none; max-width:var(--maxw); margin:0 auto; }
.step{
  display:grid;
  grid-template-columns:minmax(80px,140px) 1fr;
  gap:clamp(1rem,4vw,4rem);
  align-items:start;
  padding:clamp(1.8rem,4vw,2.8rem) 0;
  border-top:1px solid var(--line);
}
.step:last-child{ border-bottom:1px solid var(--line); }
.step__num{
  font-family:var(--display);
  font-size:clamp(1.6rem,3vw,2.4rem);
  color:var(--bone-dim);
  transition:color .35s ease;
}
.step:hover .step__num{ color:var(--coral); }
.step__body h3{
  font-family:var(--display); font-weight:400;
  font-size:clamp(1.5rem,3vw,2.4rem);
  margin-bottom:.7rem; letter-spacing:-.01em;
}
.step__body p{ color:var(--bone-dim); max-width:52ch; }

/* ---------- stack / capabilities ---------- */
.marquee{
  overflow:hidden;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:1.4rem 0;
  margin-bottom:clamp(3rem,7vw,5rem);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.marquee__track{
  display:flex; gap:1.6rem; width:max-content;
  font-family:var(--display);
  font-size:clamp(1.6rem,3.4vw,2.8rem);
  white-space:nowrap;
  will-change:transform;
}
.marquee__track span:nth-child(even){ color:var(--coral); }
.stack__stats{
  display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:clamp(1.5rem,4vw,3rem); max-width:var(--maxw); margin:0 auto;
}
.stat__k{
  display:block; font-size:1.5rem; color:var(--gold);
  font-family:var(--mono); text-transform:none; letter-spacing:0; margin-bottom:.6rem;
}
.stat__v{ color:var(--bone-dim); display:block; max-width:34ch; }

/* ---------- contact ---------- */
.contact{ text-align:center; padding-top:clamp(7rem,16vh,12rem); padding-bottom:clamp(7rem,16vh,12rem); }
.contact .sec-index{ color:var(--coral); }
.contact__title{
  font-family:var(--display); font-weight:400;
  font-size:clamp(2.6rem,8vw,6rem);
  line-height:1; letter-spacing:-.02em; margin-bottom:1.6rem;
}
.contact__lead{ color:var(--bone-dim); max-width:42ch; margin:0 auto 2.6rem; }
.contact__mail{
  display:inline-block;
  font-family:var(--display);
  font-size:clamp(1.6rem,5vw,3rem);
  color:var(--bone);
  position:relative; padding-bottom:.15em;
}
.contact__mail::after{
  content:""; position:absolute; left:0; bottom:0; height:2px; width:100%;
  background:var(--coral); transform-origin:left; scale:1 1;
  transition:scale .4s ease;
}
.contact__mail:hover{ color:var(--coral); }
.contact__mail:hover::after{ scale:0 1; transform-origin:right; }
.contact__alt{ margin-top:1.6rem; color:var(--bone-dim); font-size:.95rem; }

/* ---------- footer ---------- */
.foot{
  display:flex; flex-wrap:wrap; justify-content:space-between; gap:1rem;
  padding:2.4rem var(--pad);
  border-top:1px solid var(--line);
  position:relative; z-index:1;
}
.foot__brand{ font-family:var(--display); font-size:1.3rem; letter-spacing:.04em; }

/* ---------- reveal init states (JS-driven) ---------- */
[data-rise]{ will-change:transform,opacity; }

/* hide the cursor hint + scroll cue on small screens.
   placed late so source order beats the base .hero__hint rule. */
@media(max-width:680px){
  .hero__hint,.hero__scroll{ display:none; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
  .loader{ display:none; }
  .cursor,.cursor-dot{ display:none; }
  body.cursor-ready{ cursor:auto; }
  [data-rise],[data-word],.loader__mark span{ transform:none !important; opacity:1 !important; }
}