/* ============================================================
   ALUIZIO BATU — Editorial luxury design system
   ============================================================ */

:root{
  /* palette */
  --cream:#F3EEE3;
  --sand:#E7DEC8;
  --paper:#FAF7F0;
  --black:#0C0A08;
  --ink:#17140F;
  --gold:#8B6B3D;
  --gold-soft:#B79A66;
  --white:#FFFFFF;
  --line:rgba(12,10,8,0.12);
  --line-on-dark:rgba(255,255,255,0.14);

  /* type */
  --serif:"Fraunces", Georgia, "Times New Roman", serif;
  --sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container:1320px;
  --gutter:clamp(1.5rem, 5vw, 5rem);

  --ease:cubic-bezier(.16,.8,.24,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

body{
  margin:0;
  font-family:var(--sans);
  background:var(--cream);
  color:var(--ink);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;background:none;border:0;cursor:pointer;color:inherit;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}

.container{
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.eyebrow{
  font-family:var(--sans);
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--gold);
  display:flex;
  align-items:center;
  gap:.75rem;
  font-weight:600;
}
.eyebrow::before{
  content:"";
  width:28px;height:1px;
  background:var(--gold);
  display:inline-block;
}
.on-dark .eyebrow{color:var(--gold-soft);}

h1,h2,.h1,.h2{
  font-family:var(--serif);
  font-weight:440;
  letter-spacing:-.01em;
  line-height:1.05;
  color:var(--black);
}
.on-dark h2,.on-dark h1,.on-dark .h2{color:var(--paper);}

h1,.h1{font-size:clamp(2.6rem, 6vw, 5rem);}
h2,.h2{font-size:clamp(2rem, 4.2vw, 3.4rem);}
h3,.h3{font-family:var(--serif);font-weight:450;font-size:clamp(1.3rem,2vw,1.7rem);color:var(--black);}

em{font-style:italic;color:var(--gold);}
.on-dark em{color:var(--gold-soft);}

p.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);line-height:1.65;color:var(--ink);}
.on-dark p.lead{color:rgba(250,247,240,.82);}

.body-text{font-size:1.05rem;line-height:1.75;color:rgba(23,20,15,.82);}
.on-dark .body-text{color:rgba(250,247,240,.72);}

.btn{
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  padding:1rem 1.9rem;
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-weight:600;
  border:1px solid currentColor;
  transition:background .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--black);
  color:var(--paper);
  border-color:var(--black);
}
.btn-primary:hover{background:var(--gold);border-color:var(--gold);color:var(--black);}
.btn-ghost{
  background:transparent;
  color:var(--black);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--black);}
.on-dark .btn-ghost{color:var(--paper);border-color:var(--line-on-dark);}
.on-dark .btn-ghost:hover{border-color:var(--paper);}
.btn-underline{
  border:0;
  padding:0;
  font-size:.78rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-weight:600;
  position:relative;
  padding-bottom:.3rem;
}
.btn-underline::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:100%;height:1px;
  background:currentColor;
  transform:scaleX(1);
  transform-origin:left;
}
.btn-underline:hover::after{animation:none;}

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

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;
  z-index:100;
  padding:1.4rem 0;
  transition:background .4s var(--ease), padding .4s var(--ease), border-color .4s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(243,238,227,.92);
  backdrop-filter:blur(10px);
  padding:.9rem 0;
  border-color:var(--line);
}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;
}
.logo{
  font-family:var(--serif);
  font-size:1.25rem;
  letter-spacing:.02em;
  color:var(--paper);
  transition:color .4s var(--ease);
}
.site-header.is-scrolled .logo{color:var(--black);}
.main-nav{display:flex;align-items:center;gap:2.4rem;}
.main-nav a{
  font-size:.76rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:rgba(250,247,240,.85);
  font-weight:600;
  transition:color .3s var(--ease);
  position:relative;
}
.site-header.is-scrolled .main-nav a{color:rgba(23,20,15,.75);}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:-6px;
  width:0;height:1px;background:var(--gold);
  transition:width .3s var(--ease);
}
.main-nav a:hover::after{width:100%;}
.header-cta{display:flex;align-items:center;gap:1.6rem;}
.header-cta .btn{padding:.75rem 1.4rem;}
.header-cta .btn-ghost{
  color:var(--paper);border-color:rgba(250,247,240,.4);
}
.site-header.is-scrolled .header-cta .btn-ghost{color:var(--black);border-color:var(--line);}

.menu-toggle{display:none;flex-direction:column;gap:5px;padding:.5rem;}
.menu-toggle span{width:22px;height:1px;background:var(--paper);transition:background .3s;}
.site-header.is-scrolled .menu-toggle span{background:var(--black);}

.mobile-nav{
  position:fixed;inset:0;
  background:var(--black);
  z-index:200;
  display:flex;flex-direction:column;
  padding:1.5rem var(--gutter) 2.5rem;
  transform:translateY(-100%);
  transition:transform .5s var(--ease);
}
.mobile-nav.is-open{transform:translateY(0);}
.mobile-nav-top{display:flex;justify-content:space-between;align-items:center;}
.mobile-nav-top .logo{color:var(--paper);}
.mobile-close span{width:20px;height:1px;background:var(--paper);display:block;}
.mobile-close span:first-child{transform:rotate(45deg) translate(4px,4px);}
.mobile-close span:last-child{transform:rotate(-45deg) translate(4px,-4px);}
.mobile-close{display:flex;flex-direction:column;gap:0;padding:.5rem;}
.mobile-nav ul{
  margin-top:auto;margin-bottom:auto;
  display:flex;flex-direction:column;gap:1.2rem;
}
.mobile-nav a{
  font-family:var(--serif);
  font-size:2.1rem;
  color:var(--paper);
  font-weight:400;
}
.mobile-nav .btn{margin-top:2rem;align-self:flex-start;}

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height:100svh;
  display:flex;
  align-items:flex-end;
  color:var(--paper);
  overflow:hidden;
}
.hero-media{position:absolute;inset:0;z-index:0;}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:50% 22%;filter:brightness(.74) saturate(1.04);}
.hero-scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg, rgba(12,10,8,.62) 0%, rgba(12,10,8,.18) 30%, rgba(12,10,8,.42) 62%, rgba(12,10,8,.94) 100%),
    linear-gradient(90deg, rgba(12,10,8,.35) 0%, rgba(12,10,8,0) 45%);
}
.hero-content{position:relative;z-index:1;width:100%;padding-bottom:clamp(3rem,7vw,5.5rem);padding-top:8rem;}
.hero .eyebrow{color:var(--sand);margin-bottom:1.4rem;text-shadow:0 2px 14px rgba(0,0,0,.55);}
.hero .eyebrow::before{background:var(--sand);}
.hero h1{max-width:16ch;color:var(--paper);text-shadow:0 4px 24px rgba(0,0,0,.5);}
.hero h1 em{color:var(--sand);text-shadow:0 4px 24px rgba(0,0,0,.6);}
.hero-sub{margin-top:1.6rem;max-width:46ch;}
.hero-sub p{margin-bottom:.6rem;text-shadow:0 2px 16px rgba(0,0,0,.55);}
.hero .hero-sub p.lead{color:var(--white);}
.hero .btn-ghost{color:var(--white);border-color:rgba(255,255,255,.45);}
.hero .btn-ghost:hover{border-color:var(--white);}
.hero-actions{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2.4rem;}
.scroll-hint{
  position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);
  z-index:1;
  display:flex;flex-direction:column;align-items:center;gap:.6rem;
  color:rgba(250,247,240,.6);
}
.scroll-hint .scroll-label{font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;}
.scroll-hint .scroll-line{
  width:1px;height:34px;
  background:linear-gradient(rgba(250,247,240,.9), transparent);
  animation:scrollpulse 2.2s ease-in-out infinite;
}
@keyframes scrollpulse{0%{opacity:.2}50%{opacity:1}100%{opacity:.2}}

/* ---------- generic section spacing ---------- */
section{padding-block:clamp(4.5rem,9vw,8.5rem);}
@media (min-width:900px){
  section{padding-block:clamp(2.4rem,4vw,4rem);}
}
.section-dark{background:var(--black);color:var(--paper);}
.section-sand{background:var(--sand);}
.section-paper{background:var(--paper);}

.section-head{max-width:44rem;margin-bottom:clamp(1.6rem,3vw,2.6rem);}
.gallery-head{text-align:center;max-width:600px;margin-inline:auto;}
.gallery-head .eyebrow{justify-content:center;}
.section-head h2{margin-top:1.1rem;}
.section-head p{margin-top:1.2rem;}

/* ---------- problem section ---------- */
.problem{position:relative;}
.problem-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2.5rem,6vw,6rem);align-items:center;}
.problem-media{position:relative;aspect-ratio:2/3;max-width:380px;overflow:hidden;}
.problem-media img{width:100%;height:100%;object-fit:cover;}
.problem-text h2{margin-bottom:1.5rem;}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(2.5rem,6vw,5rem);align-items:start;}
.about-media{position:sticky;top:7rem;max-width:360px;aspect-ratio:2/3;overflow:hidden;}
.about-media img{width:100%;height:100%;object-fit:cover;object-position:50% 12%;}
.about-name{font-family:var(--serif);font-size:clamp(1.8rem,3vw,2.4rem);margin-top:1.4rem;}
.about-role{font-size:.85rem;color:var(--gold);letter-spacing:.05em;margin-top:.4rem;}
.about-blocks{display:grid;gap:1.6rem;margin-top:1.6rem;}
.about-blocks p{max-width:56ch;}
.about-signature{
  margin-top:2.2rem;padding-top:1.6rem;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:1.1rem;flex-wrap:wrap;
}
.about-signature .sig-name{font-family:var(--serif);font-size:1.5rem;font-style:italic;}
.about-signature .sig-role{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:rgba(23,20,15,.6);}
.about-cta{margin-top:1.6rem;}

.stat-strip{
  margin-top:clamp(2rem,4.5vw,3.5rem);
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.stat{padding:1.8rem 1.6rem 0;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat .num{font-family:var(--serif);font-size:clamp(1.8rem,3vw,2.6rem);color:var(--black);display:block;margin-bottom:.4rem;}
.stat .label{font-size:.85rem;color:rgba(23,20,15,.65);line-height:1.5;}

/* ---------- transformation ---------- */
.transform{position:relative;background:var(--black);overflow:hidden;}
.transform-media{position:absolute;inset:0;z-index:0;}
.transform-media img{width:100%;height:100%;object-fit:cover;opacity:.34;}
.transform-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(11,10,9,.92), rgba(11,10,9,.78) 40%, rgba(11,10,9,.95));
}
.transform .container{position:relative;z-index:2;}
.transform-inner{position:relative;z-index:2;max-width:840px;margin-inline:auto;text-align:center;}
.transform-inner .eyebrow{justify-content:center;}
.transform h2{margin-top:1rem;line-height:1.28;}
.transform p.lead{margin-top:1.5rem;}
.manifesto-tags{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:2.2rem;}
.manifesto-tags span{
  font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  padding:.5rem 1rem;border:1px solid var(--line-on-dark);
  color:rgba(250,247,240,.8);
}

/* ---------- image communication ---------- */
.pillars{
  margin-top:1.8rem;
  border-top:1px solid var(--line);
}
.pillar{
  display:grid;
  grid-template-columns:5rem 1fr;
  gap:1.5rem;
  padding:2.2rem 0;
  border-bottom:1px solid var(--line);
  align-items:baseline;
}
.pillar .idx{font-family:var(--serif);font-size:1rem;color:var(--gold);}
.pillar h3{margin-bottom:.5rem;}
.pillar p{max-width:52ch;color:rgba(23,20,15,.72);}

/* ---------- method ---------- */
.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2.5rem,6vw,5rem);align-items:center;}
.method-media{aspect-ratio:2/3;max-width:380px;overflow:hidden;}
.method-media img{width:100%;height:100%;object-fit:cover;object-position:50% 30%;}
.method-list{margin-top:1.8rem;display:grid;gap:1.1rem;}
.method-list li{
  display:flex;gap:.9rem;align-items:flex-start;
  font-size:1.02rem;color:var(--ink);
}
.method-list li::before{
  content:"";
  width:6px;height:6px;
  margin-top:.55rem;
  background:var(--gold);
  flex:none;
}

/* ---------- portfolio ---------- */
.gallery{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  grid-auto-rows:90px;
  gap:14px;
  margin-top:2rem;
}
.gallery figure{margin:0;position:relative;overflow:hidden;background:var(--sand);}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease);}
.gallery a:hover img,.gallery figure:hover img{transform:scale(1.045);}
.gallery figcaption{
  position:absolute;left:0;bottom:0;right:0;
  padding:1rem 1.2rem;
  font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--paper);
  background:linear-gradient(0deg, rgba(12,10,8,.65), transparent);
}
.g1{grid-column:1/4;grid-row:1/7;}
.g2{grid-column:4/7;grid-row:1/4;}
.g3{grid-column:4/7;grid-row:4/7;}

/* ---------- apps ---------- */
.apps-head{max-width:50rem;}
.app-card{
  margin-top:clamp(1.8rem,3.5vw,3rem);
  display:grid;
  grid-template-columns:1fr 1fr;
  border:1px solid var(--line-on-dark);
}
.app-card + .app-card{margin-top:clamp(1.5rem,3vw,2rem);}
.app-visual{
  position:relative;
  aspect-ratio:5/4;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  border-right:1px solid var(--line-on-dark);
  padding:clamp(1.6rem,4vw,3rem);
}
.app-visual .visual-fallback{
  position:absolute;inset:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:.8rem;
  text-align:center;
  padding:2rem;
}
.app-visual .visual-fallback .mark{
  font-family:var(--serif);
  font-size:1.6rem;
  letter-spacing:.02em;
}
.app-visual .visual-fallback .note{
  font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(250,247,240,.4);
}
.vest .app-visual{background:radial-gradient(120% 120% at 30% 20%, #232019 0%, #0C0A08 70%);}
.ghetto .app-visual{background:radial-gradient(120% 120% at 70% 80%, #241c14 0%, #0C0A08 70%);}
.store .app-visual{background:radial-gradient(120% 120% at 50% 50%, #26201a 0%, #0C0A08 70%);}
.app-shot{
  position:relative;z-index:1;
  width:78%;
  height:100%;
  object-fit:contain;
  border-radius:14px;
  box-shadow:0 30px 60px -20px rgba(0,0,0,.7), 0 0 0 1px rgba(255,255,255,.06);
}
.app-body{padding:clamp(2rem,4vw,3.2rem);display:flex;flex-direction:column;justify-content:center;}
.app-tag{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-soft);margin-bottom:1rem;}
.app-body h3.app-name{font-family:var(--serif);font-size:clamp(1.8rem,2.6vw,2.3rem);color:var(--paper);}
.app-body .app-sub{margin-top:.6rem;font-size:1.02rem;color:rgba(250,247,240,.75);}
.app-body p.app-desc{margin-top:1.2rem;color:rgba(250,247,240,.6);max-width:44ch;}
.app-features{margin-top:1.4rem;display:flex;flex-wrap:wrap;gap:.5rem .9rem;}
.app-features span{
  font-size:.72rem;letter-spacing:.04em;
  color:rgba(250,247,240,.55);
  padding:.35rem .8rem;
  border:1px solid var(--line-on-dark);
}
.app-body .btn{margin-top:1.8rem;align-self:flex-start;color:var(--paper);border-color:rgba(250,247,240,.35);}
.app-body .btn:hover{background:var(--gold-soft);border-color:var(--gold-soft);color:var(--black);}
/* precisa vir depois de .app-body .btn para zerar o margin-top de cada botao */
.app-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:1.8rem;align-self:flex-start;}
.app-body .app-actions .btn{margin-top:0;padding-inline:1.5rem;}

/* ---------- authority / social proof ---------- */
.authority{text-align:left;}
.authority-quote{
  max-width:52rem;
  font-family:var(--serif);
  font-size:clamp(1.5rem,2.6vw,2.1rem);
  line-height:1.4;
  color:var(--black);
}
.authority-note{margin-top:2rem;font-size:.85rem;color:rgba(23,20,15,.55);max-width:40ch;}

/* ---------- impact ---------- */
.impact{text-align:left;}

/* ---------- services ---------- */
.services-grid{
  margin-top:clamp(1.8rem,3.5vw,3rem);
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.service-card{
  background:var(--paper);
  padding:1.8rem 1.6rem;
}
.service-card:last-child{grid-column:1 / -1;}
.service-card:last-child p{max-width:60ch;}
.service-card h3{margin-bottom:.7rem;}
.service-card p{font-size:.95rem;line-height:1.65;color:rgba(23,20,15,.72);max-width:34ch;}
.services-cta{
  margin-top:clamp(1.8rem,3.5vw,2.5rem);
  padding-top:1.6rem;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.5rem;
}
.services-cta .lead{max-width:34ch;}

/* ---------- contact ---------- */
.contact{color:var(--paper);}
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2.5rem,6vw,5rem);align-items:end;}
.contact h2{margin-top:1rem;}
.contact-sub{margin-top:1.4rem;max-width:34ch;}
.contact-methods{display:grid;gap:1.8rem;border-top:1px solid var(--line-on-dark);padding-top:1.8rem;}
.contact-method{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;border-bottom:1px solid var(--line-on-dark);padding-bottom:1.6rem;}
.contact-method .label{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-soft);}
.contact-method .value{font-family:var(--serif);font-size:1.3rem;margin-top:.5rem;}
.contact-method .hint{font-size:.85rem;color:rgba(250,247,240,.5);margin-top:.3rem;}
.contact-cta{margin-top:2.4rem;}

/* ---------- final CTA ---------- */
.final-cta{text-align:left;}
.final-cta h2{max-width:14ch;}
.final-cta .lead{margin-top:1.5rem;max-width:36ch;}
.final-cta .btn{margin-top:2.2rem;}

/* ---------- footer ---------- */
footer{background:var(--black);color:rgba(250,247,240,.6);padding-top:4rem;border-top:1px solid var(--line-on-dark);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2.5rem;padding-bottom:3rem;border-bottom:1px solid var(--line-on-dark);}
.footer-brand .logo{color:var(--paper);}
.footer-brand p{margin-top:1rem;max-width:32ch;font-size:.92rem;line-height:1.6;}
.footer-col h4{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-soft);margin-bottom:1.1rem;}
.footer-col ul{display:grid;gap:.7rem;}
.footer-col a{font-size:.92rem;color:rgba(250,247,240,.65);transition:color .3s;}
.footer-col a:hover{color:var(--paper);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-block:1.6rem;font-size:.8rem;flex-wrap:wrap;gap:1rem;}

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

/* ---------- extra compact desktop pass ---------- */
@media (min-width:900px){
  section{padding-block:clamp(2rem,3vw,3.2rem);}
  .section-head{margin-bottom:clamp(1.1rem,1.8vw,1.6rem);}
  h2,.h2{font-size:clamp(1.7rem,2.6vw,2.3rem);}
  h3,.h3{font-size:clamp(1.1rem,1.4vw,1.3rem);}
  p.lead{font-size:clamp(.98rem,1.1vw,1.05rem);}
  .body-text{font-size:.95rem;}
  .services-grid{margin-top:clamp(1.1rem,1.8vw,1.6rem);}
  .service-card{padding:1.3rem 1.4rem;}
  .service-card p{font-size:.9rem;line-height:1.55;}
  .service-card h3{margin-bottom:.4rem;}
  .services-cta{margin-top:clamp(1.1rem,1.8vw,1.5rem);padding-top:1.1rem;}
  .app-card{margin-top:clamp(1rem,2vw,1.6rem);}
  .app-card + .app-card{margin-top:clamp(1rem,1.8vw,1.4rem);}
  .stat-strip{margin-top:clamp(1.2rem,2.2vw,2rem);}
  .stat{padding:1.2rem 1.3rem 0;}
  .about-blocks{gap:1.1rem;margin-top:1.1rem;}
  .method-list{margin-top:1.2rem;gap:.8rem;}
  .pillars{margin-top:1.2rem;}
  .pillar{padding:1.5rem 0;}
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1024px){
  .about-grid,.problem-grid,.method-grid{grid-template-columns:1fr;}
  .about-media{position:relative;top:0;}
  /* fotos empilhadas: mesmo tratamento do site de referencia */
  .problem-media,.about-media,.method-media{max-width:340px;margin-inline:auto;}
  .app-card{grid-template-columns:1fr;}
  .app-visual{border-right:0;border-bottom:1px solid var(--line-on-dark);aspect-ratio:16/10;}
  .contact-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(2n){border-right:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);padding-bottom:1.8rem;}
}

@media (max-width:900px){
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:220px;}
  .g1{grid-column:1/3;grid-row:1/3;}
  .g2{grid-column:1/2;grid-row:3/4;}
  .g3{grid-column:2/3;grid-row:3/4;}
}

@media (max-width:860px){
  .main-nav,.header-cta .btn-ghost{display:none;}
  .menu-toggle{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:640px){
  body{font-size:16px;}
  section{padding-block:clamp(3.2rem,10vw,5rem);}
  .footer-grid{grid-template-columns:1fr;gap:2rem;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .pillar{grid-template-columns:3rem 1fr;}
  .contact-method{flex-direction:column;align-items:flex-start;gap:.3rem;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{justify-content:center;text-align:center;}
  .scroll-hint{display:none;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .app-features{gap:.5rem;}
  .services-grid{grid-template-columns:1fr;}
  .service-card:last-child{grid-column:auto;}
  .services-cta{flex-direction:column;align-items:flex-start;}
  h1,.h1{font-size:clamp(2.3rem,10vw,3rem);}
}

@media (max-width:420px){
  .hero-content{padding-top:6rem;}
  .container{padding-inline:1.25rem;}
}