/* ============================================================
   ia99.com.br — landing
   Dark, mobile-first, sem dependência de framework.
   ============================================================ */

:root{
  --bg:#05060a;
  --bg-soft:#080a11;
  --panel:rgba(255,255,255,.035);
  --panel-strong:rgba(255,255,255,.06);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#f2f3f7;
  --muted:#9aa1b4;
  --muted-2:#6f7689;
  --violet:#7c5cff;
  --violet-2:#a78bfa;
  --cyan:#22d3ee;
  --lime:#a3e635;
  --grad:linear-gradient(100deg,#a78bfa 0%,#7c5cff 38%,#22d3ee 100%);
  --radius:20px;
  --radius-sm:12px;
  --shadow:0 24px 70px -30px rgba(0,0,0,.9);
  --max:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:clamp(15px,.4vw + 14px,17px);line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img,canvas,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.08;letter-spacing:-.03em;margin:0;font-weight:650}
h1{font-size:clamp(2.6rem,7.2vw,5.1rem)}
h2{font-size:clamp(1.85rem,3.9vw,3rem)}
h3{font-size:1.06rem;letter-spacing:-.02em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(124,92,255,.35);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

.skip{position:absolute;left:-9999px;top:0;background:#fff;color:#000;padding:.7rem 1rem;z-index:200}
.skip:focus{left:1rem;top:1rem}

/* ---------- camadas decorativas ---------- */
.grid-overlay{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 50% 0%,#000 0%,transparent 72%);
  opacity:.75;
}
.cursor-glow{
  position:fixed;z-index:1;width:520px;height:520px;border-radius:50%;pointer-events:none;
  left:0;top:0;opacity:0;transition:opacity .5s ease;
  background:radial-gradient(circle,rgba(124,92,255,.18),transparent 62%);
  transform:translate3d(-50%,-50%,0);will-change:transform;
}
body.has-pointer .cursor-glow{opacity:1}

/* ---------- nav ---------- */
.nav{
  position:fixed;inset:0 0 auto 0;z-index:100;
  display:flex;align-items:center;gap:1rem;
  padding:.85rem clamp(1rem,4vw,2.2rem);
  border-bottom:1px solid transparent;
  transition:background .35s var(--ease),border-color .35s var(--ease),backdrop-filter .35s;
}
.nav.is-stuck{
  background:rgba(5,6,10,.72);border-bottom-color:var(--line);
  backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);
}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:650;letter-spacing:-.02em}
.brand-mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:11px;
  background:var(--grad);color:#0a0a12;font-size:.82rem;font-weight:800;letter-spacing:-.04em;
  box-shadow:0 6px 22px -8px rgba(124,92,255,.9);
}
.brand-text{font-size:1rem}
.brand-text span{color:var(--muted-2);font-weight:500}
.nav-links{display:none;gap:1.6rem;margin-left:auto;font-size:.92rem;color:var(--muted)}
.nav-links a{position:relative;padding:.3rem 0;transition:color .25s}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--grad);
  transition:right .35s var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{right:0}
.nav-cta{display:none;margin-left:auto}
.nav-toggle{
  margin-left:auto;display:grid;gap:5px;place-items:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:var(--panel);cursor:pointer;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:var(--text);transition:transform .3s var(--ease),opacity .3s}
.nav-toggle[aria-expanded="true"] span:first-child{transform:translateY(3.2px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:last-child{transform:translateY(-3.2px) rotate(-45deg)}
.mobile-menu{
  position:fixed;inset:64px 0 auto 0;z-index:99;
  display:none;gap:.2rem;padding:1rem clamp(1rem,4vw,2rem) 1.6rem;
  background:rgba(6,7,12,.97);border-bottom:1px solid var(--line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.mobile-menu:not([hidden]){display:grid;animation:menuIn .28s var(--ease)}
@keyframes menuIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.mobile-menu a{padding:.9rem .2rem;border-bottom:1px solid rgba(255,255,255,.05);color:var(--muted);font-size:.95rem;font-weight:500}
.mobile-menu a.btn{color:#0a0a12;border:0;margin-top:.9rem;justify-content:center}

/* ---------- botões ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.86rem 1.35rem;border-radius:999px;border:1px solid var(--line-strong);
  font-size:.94rem;font-weight:550;letter-spacing:-.01em;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .3s var(--ease),background .3s,border-color .3s;
  will-change:transform;
}
.btn svg{width:17px;height:17px;flex:none}
.btn-primary{
  background:var(--grad);color:#08080f;border-color:transparent;
  box-shadow:0 14px 40px -18px rgba(124,92,255,.95);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 52px -20px rgba(124,92,255,1)}
.btn-ghost{background:var(--panel);color:var(--text)}
.btn-ghost:hover{background:var(--panel-strong);transform:translateY(-2px)}
.btn-small{padding:.6rem 1.05rem;font-size:.86rem}
.btn-lg{padding:1.05rem 1.7rem;font-size:1rem}
.btn:active{transform:translateY(0) scale(.985)}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:100svh;display:grid;align-items:center;
  padding:clamp(6.5rem,14vh,9rem) clamp(1.1rem,5vw,2.5rem) clamp(4rem,9vh,6rem);
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;z-index:0;width:100%;height:100%;object-fit:cover;opacity:.6;
  mask-image:radial-gradient(ellipse 92% 82% at 70% 40%,#000 12%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse 92% 82% at 70% 40%,#000 12%,transparent 72%);
}
#heroCanvas{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.hero-glow{
  position:absolute;inset:auto;left:50%;top:-18%;width:min(1100px,120vw);aspect-ratio:1;
  transform:translateX(-50%);z-index:1;pointer-events:none;
  background:radial-gradient(circle,rgba(124,92,255,.22),rgba(34,211,238,.08) 45%,transparent 68%);
  filter:blur(20px);
}
.hero-inner{position:relative;z-index:2;max-width:var(--max);margin:0 auto;width:100%}
.eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;
  font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);
  margin-bottom:1.3rem;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--grad)}
.grad{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  background-size:200% 100%;animation:shift 7s linear infinite;
}
@keyframes shift{to{background-position:200% 0}}
.hero h1{margin-bottom:1.25rem;text-wrap:balance}
.lead{max-width:56ch;color:var(--muted);font-size:clamp(1rem,1.5vw,1.13rem)}
.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem;margin-top:2rem}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;
  margin-top:3rem;padding-top:1.5rem;border-top:1px solid var(--line);max-width:640px;
}
.hero-stats li{display:grid;gap:.15rem}
.hero-stats strong{font-size:clamp(1.3rem,2.6vw,1.75rem);letter-spacing:-.03em}
.hero-stats span{font-size:.76rem;color:var(--muted-2);line-height:1.35}
.scroll-hint{
  position:absolute;left:50%;bottom:1.4rem;transform:translateX(-50%);
  display:none;align-items:center;gap:.6rem;z-index:3;
  font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted-2);
}
.scroll-hint span{
  width:20px;height:32px;border:1px solid var(--line-strong);border-radius:12px;position:relative;
}
.scroll-hint span::after{
  content:"";position:absolute;left:50%;top:7px;width:3px;height:6px;border-radius:2px;
  background:var(--violet-2);transform:translateX(-50%);animation:wheel 1.8s infinite;
}
@keyframes wheel{0%{opacity:0;transform:translate(-50%,0)}35%{opacity:1}100%{opacity:0;transform:translate(-50%,12px)}}

/* ---------- seções ---------- */
.section{
  position:relative;z-index:2;
  max-width:var(--max);margin:0 auto;
  padding:clamp(4rem,9vw,7rem) clamp(1.1rem,5vw,2.5rem);
}
.section-head{max-width:720px;margin-bottom:clamp(2rem,5vw,3.2rem)}
.section-head h2{margin-bottom:.85rem;text-wrap:balance}
.section-sub{color:var(--muted);max-width:60ch}

/* ---------- cards ---------- */
.cards{
  display:grid;gap:clamp(.85rem,1.6vw,1.1rem);
  grid-template-columns:repeat(auto-fit,minmax(min(100%,268px),1fr));
}
.card{
  position:relative;display:flex;flex-direction:column;gap:.65rem;
  padding:1.45rem 1.35rem 1.2rem;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.055),rgba(255,255,255,.014));
  border:1px solid var(--line);overflow:hidden;
  transform-style:preserve-3d;
  transition:border-color .35s var(--ease),box-shadow .4s var(--ease),background .4s;
}
.card::before{
  content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;
  background:linear-gradient(140deg,rgba(167,139,250,.55),transparent 42%,rgba(34,211,238,.45));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:0;transition:opacity .4s var(--ease);pointer-events:none;
}
.card:hover{border-color:var(--line-strong);box-shadow:var(--shadow);background:linear-gradient(160deg,rgba(255,255,255,.075),rgba(255,255,255,.02))}
.card:hover::before{opacity:1}
.card-icon{
  display:grid;place-items:center;width:46px;height:46px;border-radius:13px;
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.card-icon img{width:26px;height:26px;object-fit:contain}
.card-icon svg{width:22px;height:22px}
.card p{color:var(--muted);font-size:.92rem;flex:1}
.card-link{
  margin-top:.35rem;font-size:.85rem;font-weight:560;color:var(--violet-2);
  display:inline-flex;align-items:center;gap:.4rem;transition:gap .3s var(--ease),color .3s;
}
.card-link span{transition:transform .3s var(--ease)}
.card-link:hover{color:var(--cyan);gap:.6rem}
.card-link:hover span{transform:translateX(3px)}

/* ---------- split / como funciona ---------- */
.split{
  display:grid;gap:clamp(2rem,5vw,3.5rem);align-items:center;
  grid-template-columns:1fr;
}
.split-media{
  position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:var(--bg-soft);will-change:transform;
}
.split-media img{
  width:100%;height:clamp(240px,42vw,420px);object-fit:cover;
  filter:saturate(.85) contrast(1.05) brightness(.82);
}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 35%,rgba(5,6,10,.9));
}
.media-badge{
  position:absolute;left:1.1rem;bottom:1.1rem;z-index:2;display:grid;gap:.1rem;
  padding:.75rem 1rem;border-radius:14px;border:1px solid var(--line-strong);
  background:rgba(8,9,15,.72);backdrop-filter:blur(10px);
}
.media-badge strong{font-size:1.35rem;letter-spacing:-.03em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.media-badge span{font-size:.72rem;color:var(--muted)}
.split-text h2{margin-bottom:1.6rem;text-wrap:balance}
.steps{display:grid;gap:1rem;margin-bottom:1.8rem}
.steps li{display:grid;gap:.25rem;padding-left:1rem;border-left:1px solid var(--line-strong)}
.steps strong{font-size:.9rem;letter-spacing:-.01em}
.steps span{color:var(--muted);font-size:.9rem}

/* ---------- pilares ---------- */
.pillars{display:grid;gap:1rem;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr))}
.pillar{
  padding:1.5rem 1.35rem;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--panel);
}
.pillar strong{display:block;margin-bottom:.5rem;font-size:1rem}
.pillar p{color:var(--muted);font-size:.9rem}

/* ---------- faixa CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;isolation:isolate;
  margin:clamp(2rem,6vw,4rem) auto;max-width:calc(var(--max) + 3rem);
  border-radius:clamp(20px,3vw,30px);border:1px solid var(--line);
  padding:clamp(3rem,8vw,5.5rem) clamp(1.2rem,5vw,3.5rem);
  display:grid;place-items:center;text-align:center;
}
.cta-bg{
  position:absolute;inset:-12% 0;width:100%;height:124%;object-fit:cover;z-index:-2;
  filter:saturate(.75) brightness(.62) blur(1px);
}
.cta-band::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:radial-gradient(circle at 50% 40%,rgba(124,92,255,.4),rgba(5,6,10,.86) 62%);
}
.cta-content{max-width:720px}
.cta-content h2{margin-bottom:1rem;text-wrap:balance}
.cta-content p{color:#c8ccd9;margin-bottom:2rem}

/* ---------- faq ---------- */
.faq{display:grid;gap:.7rem;max-width:none}
.faq-wrap{display:grid;gap:clamp(1.2rem,3vw,2rem)}
.faq-media img{
  width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line);
  opacity:.92;box-shadow:var(--shadow);
}
@media (min-width:980px){
  .faq-wrap{grid-template-columns:minmax(0,1fr) 330px;align-items:start}
  .faq-media{position:sticky;top:110px}
}
.faq details{
  border:1px solid var(--line);border-radius:16px;background:var(--panel);
  padding:1rem 1.15rem;transition:border-color .3s,background .3s;
}
.faq details[open]{border-color:var(--line-strong);background:var(--panel-strong)}
.faq summary{
  cursor:pointer;list-style:none;font-weight:550;font-size:.98rem;
  display:flex;justify-content:space-between;gap:1rem;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";color:var(--violet-2);font-weight:400;font-size:1.3rem;line-height:1;
  transition:transform .3s var(--ease);
}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{color:var(--muted);font-size:.92rem;margin-top:.7rem}

/* ---------- footer ---------- */
.footer{
  position:relative;z-index:2;border-top:1px solid var(--line);
  padding:clamp(2.5rem,5vw,3.5rem) clamp(1.1rem,5vw,2.5rem) calc(2rem + env(safe-area-inset-bottom));
  max-width:var(--max);margin:0 auto;
  display:grid;gap:1.4rem;
}
.footer-top{display:grid;gap:.6rem}
.footer-top p{color:var(--muted);font-size:.9rem;max-width:46ch}
.footer-links{display:flex;flex-wrap:wrap;gap:1.2rem;font-size:.88rem;color:var(--muted)}
.footer-links a:hover{color:var(--text)}
.footer-legal{color:var(--muted-2);font-size:.78rem}

/* ---------- whatsapp flutuante ---------- */
.wa-float{
  position:fixed;right:1.1rem;bottom:1.1rem;z-index:90;
  display:none;align-items:center;gap:.55rem;
  padding:.8rem 1.1rem;border-radius:999px;
  background:#1faa5a;color:#04140a;font-weight:600;font-size:.9rem;
  box-shadow:0 18px 40px -18px rgba(31,170,90,.85);
  transition:transform .3s var(--ease),box-shadow .3s;
}
.wa-float svg{width:22px;height:22px}
.wa-float:hover{transform:translateY(-2px) scale(1.02)}
.wa-float::after{
  content:"";position:absolute;inset:0;border-radius:inherit;border:1px solid rgba(31,170,90,.6);
  animation:ring 2.6s var(--ease) infinite;
}
@keyframes ring{0%{transform:scale(1);opacity:.7}70%,100%{transform:scale(1.28);opacity:0}}

/* barra fixa mobile */
.mobile-bar{
  position:fixed;inset:auto 0 0 0;z-index:95;display:block;
  padding:.7rem .9rem calc(.7rem + env(safe-area-inset-bottom));
  background:linear-gradient(180deg,rgba(5,6,10,0),rgba(5,6,10,.92) 32%);
}
.mobile-bar .btn{width:100%;box-shadow:0 16px 34px -14px rgba(124,92,255,.9)}
body{padding-bottom:76px}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease);transition-delay:var(--d,0ms)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsivo ---------- */
@media (min-width:760px){
  .scroll-hint{display:flex}
  .nav-links{display:flex}
  .nav-cta{display:inline-flex}
  .nav-toggle{display:none}
  .split{grid-template-columns:1fr 1fr}
  .footer{grid-template-columns:1fr auto;align-items:end}
  .footer-top{grid-column:1;grid-row:1}
  .footer-links{grid-column:2;grid-row:1/3;justify-content:flex-end}
  .footer-legal{grid-column:1;grid-row:2}
}
@media (min-width:1100px){
  .nav-cta{margin-left:1.6rem}
  .wa-float{display:inline-flex;bottom:1.4rem;right:1.4rem}
  .mobile-bar{display:none}
  body{padding-bottom:0}
}
@media (max-width:400px){
  .hero-stats{grid-template-columns:1fr 1fr;gap:.8rem}
  .hero-stats li:last-child{grid-column:span 2}
}

/* ---------- páginas de documento (privacidade, termos, exclusão) ---------- */
.doc{max-width:76ch;margin:0 auto;padding:clamp(6.5rem,12vh,8rem) clamp(1.1rem,5vw,2rem) 4rem}
.doc h1{font-size:clamp(2rem,4.6vw,3rem);margin-bottom:.6rem;text-wrap:balance}
.doc .updated{color:var(--muted-2);font-size:.82rem;margin-bottom:2.4rem}
.doc h2{font-size:1.15rem;margin:2.2rem 0 .55rem;letter-spacing:-.02em}
.doc p,.doc li{color:var(--muted);font-size:.95rem}
.doc ul{margin:.5rem 0 .5rem 1.1rem;list-style:disc}
.doc li{margin:.35rem 0}
.doc a{color:var(--violet-2);text-decoration:underline;text-underline-offset:3px}
.doc strong{color:var(--text)}
.doc .updated + p{margin-top:0}
.back{display:inline-flex;gap:.4rem;align-items:center;margin-top:2.6rem;font-size:.9rem;color:var(--violet-2)}
.doc-nav{display:flex;flex-wrap:wrap;gap:1rem;margin-top:2.4rem;padding-top:1.4rem;border-top:1px solid var(--line);font-size:.86rem}
.doc-nav a{color:var(--muted)}
.doc-nav a:hover{color:var(--text)}

/* ---------- acessibilidade / movimento ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  .grid-overlay,.cursor-glow{display:none}
  #heroCanvas{display:none}
}