/* =========================================================
   Inteligência em Informações - Static Site
   Paleta: preto / cinza escuro / branco / azul discreto
   ========================================================= */

/* ---------- Reset & Base ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:16px;line-height:1.6;color:#e7ebf0;background:#0b0d10;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit}
ul{list-style:none}

/* ---------- Tokens ---------- */
:root{
  --bg:#0b0d10;
  --bg-alt:#101418;
  --surface:#151a20;
  --surface-2:#1b2128;
  --border:rgba(255,255,255,0.08);
  --text:#e7ebf0;
  --muted:#9aa3ad;
  --accent:#3b82f6;
  --accent-2:#60a5fa;
  --accent-soft:rgba(59,130,246,0.12);
  --shadow-lg:0 30px 60px -20px rgba(0,0,0,0.6);
  --radius:14px;
  --max:1200px;
}

/* ---------- Layout helpers ---------- */
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px}
.section{padding:110px 0}
.section--alt{background:var(--bg-alt)}
.section__head{max-width:720px;margin:0 auto 64px;text-align:center}
.section__head h2{font-size:clamp(1.8rem,3vw,2.6rem);margin:14px 0 14px;letter-spacing:-.02em}
.section__head p{color:var(--muted)}

h1,h2,h3,h4,h5{font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;color:#fff;line-height:1.2}

.eyebrow{
  display:inline-block;font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--accent-2);padding:6px 12px;border:1px solid var(--accent-soft);
  border-radius:999px;background:var(--accent-soft);
}
.eyebrow--light{color:#fff;border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.08)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:10px;font-weight:600;font-size:.95rem;
  transition:transform .25s ease, box-shadow .25s ease, background .25s ease;
  white-space:nowrap;letter-spacing:.01em;cursor:pointer;
}
.btn--primary{background:var(--accent);color:#fff;box-shadow:0 10px 25px -10px rgba(59,130,246,.6)}
.btn--primary:hover{transform:translateY(-2px);background:var(--accent-2);box-shadow:0 16px 30px -10px rgba(59,130,246,.7)}
.btn--ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.2)}
.btn--ghost:hover{background:rgba(255,255,255,.08);transform:translateY(-2px)}
.btn--header{padding:10px 20px;font-size:.875rem}

/* ---------- Header ---------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s ease, backdrop-filter .3s ease, border-color .3s ease;
  border-bottom:1px solid transparent;
}
.header.is-scrolled{
  background:rgba(11,13,16,.78);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom-color:var(--border);
}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;color:#fff;font-size:1.15rem}
.brand__mark{
  width:30px;height:30px;border-radius:8px;
  background:linear-gradient(135deg,var(--accent),#1e40af);
  position:relative;box-shadow:0 6px 16px -6px rgba(59,130,246,.7)
}
.brand__mark::after{content:"";position:absolute;inset:7px;border:2px solid #fff;border-radius:50%}
.brand__accent{color:var(--accent)}
.nav{display:flex;gap:32px}
.nav a{color:var(--muted);font-size:.92rem;font-weight:500;transition:color .2s}
.nav a:hover{color:#fff}

/* Mobile nav toggle */
.nav-toggle{display:none;flex-direction:column;gap:5px;width:30px;height:30px;justify-content:center;align-items:center}
.nav-toggle span{width:22px;height:2px;background:#fff;transition:.3s}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding:120px 0 80px}
.hero__bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:grayscale(40%) contrast(1.05);}
.hero__overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,13,16,.92) 0%,rgba(11,13,16,.75) 50%,rgba(11,13,16,.92) 100%)}
.hero__inner{position:relative;max-width:820px}
.hero__title{font-size:clamp(2.2rem,5vw,4rem);letter-spacing:-.03em;margin:18px 0 22px}
.hero__subtitle{font-size:clamp(1rem,1.4vw,1.2rem);color:var(--muted);max-width:640px;margin-bottom:36px}
.hero__ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero__stats{display:flex;gap:48px;margin-top:60px;flex-wrap:wrap}
.hero__stats div{display:flex;flex-direction:column}
.hero__stats strong{font-family:'Plus Jakarta Sans',sans-serif;font-size:1.8rem;color:#fff}
.hero__stats span{color:var(--muted);font-size:.85rem;letter-spacing:.04em;text-transform:uppercase}

/* ---------- Grids ---------- */
.grid{display:grid;gap:24px}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

/* ---------- Cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:32px;transition:transform .3s ease, border-color .3s ease, background .3s ease;
}
.card:hover{transform:translateY(-6px);border-color:rgba(59,130,246,.4);background:var(--surface-2)}
.card img{width:64px;height:64px;margin-bottom:20px;object-fit:contain}
.card h3{font-size:1.15rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.95rem}

/* Feature blocks */
.feature{padding:28px;text-align:left}
.feature img{width:56px;height:56px;margin-bottom:16px}
.feature h4{font-size:1.05rem;margin-bottom:8px}
.feature p{color:var(--muted);font-size:.92rem}

/* Chips */
.chip{
  display:flex;align-items:center;gap:12px;padding:18px 22px;
  background:var(--surface);border:1px solid var(--border);border-radius:12px;
  font-weight:600;color:#fff;transition:.3s;
}
.chip:hover{border-color:var(--accent);transform:translateY(-3px)}
.chip__icon{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}

/* Split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split h2{font-size:clamp(1.6rem,2.5vw,2.4rem);margin:14px 0 18px}
.split p{color:var(--muted);margin-bottom:22px}
.split__media{display:flex;justify-content:center;align-items:center;padding:50px;background:var(--surface);border:1px solid var(--border);border-radius:20px}
.split__media img{width:100%;max-width:240px}
.list li{padding:10px 0 10px 28px;color:var(--muted);position:relative;border-bottom:1px solid var(--border)}
.list li::before{content:"";position:absolute;left:0;top:18px;width:14px;height:2px;background:var(--accent)}
.list li:last-child{border-bottom:0}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{padding:32px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);position:relative;transition:.3s}
.step:hover{border-color:var(--accent);transform:translateY(-4px)}
.step__num{font-family:'Plus Jakarta Sans',sans-serif;font-size:2.2rem;font-weight:800;color:var(--accent);display:block;margin-bottom:14px;opacity:.9}
.step h4{margin-bottom:8px}
.step p{color:var(--muted);font-size:.92rem}

/* CTA */
.cta{position:relative;padding:130px 0;background-size:cover;background-position:center;overflow:hidden}
.cta__overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(11,13,16,.92),rgba(30,64,175,.55))}
.cta__inner{position:relative;text-align:center;max-width:720px;margin:0 auto}
.cta h2{font-size:clamp(1.8rem,3vw,2.8rem);margin:18px 0;color:#fff}
.cta p{color:rgba(255,255,255,.85);margin-bottom:32px;font-size:1.05rem}
.cta .hero__ctas{justify-content:center}

/* Footer */
.footer{background:#07090b;padding:70px 0 30px;border-top:1px solid var(--border)}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:50px}
.footer h5{color:#fff;font-size:.95rem;margin-bottom:18px;letter-spacing:.04em;text-transform:uppercase}
.footer a{display:block;color:var(--muted);font-size:.92rem;margin-bottom:10px;transition:color .2s}
.footer a:hover{color:#fff}
.footer__about{color:var(--muted);font-size:.92rem;margin-top:16px;max-width:320px}
.footer__bottom{padding-top:24px;border-top:1px solid var(--border);text-align:center;color:var(--muted);font-size:.85rem}

/* WhatsApp Float */
.wa-float{
  position:fixed;bottom:28px;right:28px;z-index:200;
  width:60px;height:60px;border-radius:50%;
  background:linear-gradient(135deg,#25d366,#128c7e);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 28px -8px rgba(37,211,102,.6),0 0 0 0 rgba(37,211,102,.6);
  transition:transform .3s ease;
}
.wa-float:hover{transform:scale(1.08)}
.wa-float__ping{
  position:absolute;inset:0;border-radius:50%;
  background:rgba(37,211,102,.5);
  animation:ping 2s cubic-bezier(0,0,.2,1) infinite;
}
@keyframes ping{
  0%{transform:scale(1);opacity:.7}
  80%,100%{transform:scale(1.7);opacity:0}
}

/* Reveal animation */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s ease, transform .8s ease}
.reveal.is-visible{opacity:1;transform:translateY(0)}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:40px}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:80px 0}
  .nav{
    position:fixed;top:74px;left:0;right:0;background:rgba(11,13,16,.98);
    backdrop-filter:blur(14px);flex-direction:column;gap:0;
    padding:20px 24px;border-bottom:1px solid var(--border);
    transform:translateY(-150%);transition:transform .35s ease;
  }
  .nav.is-open{transform:translateY(0)}
  .nav a{padding:14px 0;border-bottom:1px solid var(--border);width:100%}
  .nav-toggle{display:flex}
  .btn--header{display:none}
  .hero__stats{gap:28px;margin-top:40px}
  .hero__stats strong{font-size:1.4rem}
}
@media (max-width:520px){
  .grid--4,.grid--3,.steps,.footer__grid{grid-template-columns:1fr}
  .container{padding:0 20px}
  .wa-float{width:54px;height:54px;bottom:20px;right:20px}
}