/* ============================================================
   NEXXVIA — Sistema de design
   Videointeligência • Cidades Inteligentes • Segurança
   Paleta e tipografia derivadas da identidade da marca.
   ============================================================ */

:root{
  /* superfícies */
  --bg:#0a0d13;
  --bg2:#0e121a;
  --panel:#141a24;
  --panel2:#1a2130;
  --line:#242d3a;
  --line2:#33404f;

  /* texto */
  --white:#ffffff;
  --txt:#eaeef4;
  --body:#c0c9d6;
  --mute:#8a96a8;
  --faint:#5a6472;

  /* marca */
  --cy:#22d3ee;
  --blue:#3b82f6;
  --ind:#4f46e5;
  --red:#e1322b;
  --grad:linear-gradient(120deg,#22d3ee 0%,#3b82f6 52%,#4f46e5 100%);
  --grad-soft:linear-gradient(120deg,rgba(34,211,238,.16),rgba(79,70,229,.16));

  --maxw:1200px;
  --radius:16px;
  --ease:cubic-bezier(.22,.7,.2,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--body);
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

h1,h2,h3,h4,.display{
  font-family:'Poppins',sans-serif;
  color:var(--white);
  line-height:1.12;
  letter-spacing:-.015em;
  font-weight:700;
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}

/* telemetry / mono utility — assinatura de "centro de comando" */
.mono{font-family:'JetBrains Mono','Courier New',monospace}
.eyebrow{
  font-family:'JetBrains Mono',monospace;
  font-weight:500;font-size:.72rem;letter-spacing:.28em;
  text-transform:uppercase;color:var(--cy);
  display:inline-flex;align-items:center;gap:.6rem;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cy);opacity:.7}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.red-text{color:var(--red)}

/* ---------- botões ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:'Poppins',sans-serif;font-weight:600;font-size:.94rem;
  padding:.9rem 1.6rem;border-radius:999px;border:1px solid transparent;
  transition:.22s var(--ease);cursor:pointer;white-space:nowrap;
}
.btn svg{width:17px;height:17px}
.btn-primary{background:var(--grad);color:#05121d;box-shadow:0 10px 30px -12px rgba(59,130,246,.6)}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-2px)}
.btn-ghost{border-color:var(--line2);color:var(--txt)}
.btn-ghost:hover{border-color:var(--cy);color:var(--white);background:rgba(34,211,238,.06)}
.btn-wa{background:#25d366;color:#052b12}
.btn-wa:hover{filter:brightness(1.06);transform:translateY(-2px)}

/* ---------- navegação ---------- */
header.nav{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:.3s var(--ease);border-bottom:1px solid transparent;
}
header.nav.scrolled{background:rgba(10,13,19,.82);backdrop-filter:blur(16px);border-bottom-color:var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:76px}
.nav-logo{height:30px}
.nav-links{display:flex;gap:2.1rem;align-items:center}
.nav-links a{font-size:.9rem;color:var(--body);transition:.2s;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--white)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--grad);border-radius:2px}
.nav-cta{padding:.6rem 1.2rem;font-size:.85rem}
.burger{display:none;background:none;border:0;color:var(--white);cursor:pointer;padding:6px}
.burger svg{width:26px;height:26px}
.mobile-menu{display:none;position:fixed;inset:76px 0 auto 0;z-index:59;background:rgba(10,13,19,.97);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);padding:18px 26px 28px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:14px 0;font-size:1.05rem;color:var(--txt);border-bottom:1px solid var(--line)}
.mobile-menu .btn{margin-top:18px;width:100%;justify-content:center}

/* ---------- estruturas comuns ---------- */
section{padding:104px 0;position:relative}
.sec-head{max-width:730px;margin-bottom:3.2rem}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head.center .eyebrow{justify-content:center}
.sec-head h2{font-size:clamp(1.95rem,3.6vw,2.85rem);margin:.85rem 0}
.sec-head p{color:var(--body);font-size:1.06rem}
.alt{background:radial-gradient(85% 60% at 82% 0%,rgba(34,80,140,.10),transparent 62%),var(--bg2)}

.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

/* cartão base */
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;transition:.25s var(--ease);position:relative;overflow:hidden;
}
.card:hover{border-color:var(--line2);transform:translateY(-4px);box-shadow:0 22px 46px -24px rgba(0,0,0,.75)}
.card .ico{
  width:48px;height:48px;border-radius:12px;background:var(--panel2);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.card .ico svg{width:24px;height:24px;stroke:var(--cy);fill:none;stroke-width:1.7}
.card h3{font-size:1.14rem;font-weight:600;margin-bottom:.55rem}
.card p{font-size:.93rem;color:var(--body)}
.card .tag{font-family:'JetBrains Mono',monospace;font-size:.68rem;letter-spacing:.14em;color:var(--faint);text-transform:uppercase;margin-bottom:14px;display:block}
.card.blue .ico svg{stroke:var(--blue)}
.card.ind .ico svg{stroke:var(--ind)}
.card.red{border-color:rgba(225,50,43,.4)}
.card.red .ico svg{stroke:var(--red)}
.card.feat{background:linear-gradient(160deg,var(--panel2),var(--panel));border-color:var(--line2)}
.card .glow{position:absolute;top:-40%;right:-30%;width:60%;height:120%;background:var(--grad-soft);filter:blur(60px);opacity:0;transition:.4s;pointer-events:none}
.card:hover .glow{opacity:.8}

/* linha de itens (rowlist) */
.rowlist .r{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}
.rowlist .r:last-child{border-bottom:0}
.rowlist .ico{width:42px;height:42px;flex:0 0 42px;border-radius:11px;background:var(--panel2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.rowlist .ico svg{width:21px;height:21px;stroke:var(--blue);fill:none;stroke-width:1.7}
.rowlist h4{font-size:1.02rem;margin-bottom:.25rem;color:var(--white)}
.rowlist p{font-size:.9rem;color:var(--body)}

/* split imagem/texto */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.split.wide{grid-template-columns:1.1fr 1fr}
.media{border-radius:var(--radius);border:1px solid var(--line);overflow:hidden;box-shadow:0 34px 74px -34px rgba(0,0,0,.85);position:relative}
.media img{width:100%;display:block}
.media .cap{font-family:'JetBrains Mono',monospace;font-size:.72rem;color:var(--faint);padding:11px 16px;border-top:1px solid var(--line);background:var(--bg2);letter-spacing:.05em}

/* lista com check */
.checks li{display:flex;gap:12px;align-items:flex-start;padding:9px 0;font-size:.97rem;color:var(--body)}
.checks li svg{width:19px;height:19px;flex:0 0 19px;margin-top:3px;stroke:var(--cy);fill:none;stroke-width:2}
.checks li b{color:var(--white);font-weight:600}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;padding:130px 0 80px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.30}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:radial-gradient(115% 90% at 15% 5%,rgba(28,74,132,.6),transparent 55%),
            radial-gradient(90% 90% at 92% 96%,rgba(79,70,229,.35),transparent 55%),
            linear-gradient(180deg,rgba(10,13,19,.55),var(--bg) 92%)}
.hero-grid{position:absolute;inset:0;z-index:1;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:62px 62px;opacity:.16;
  -webkit-mask-image:radial-gradient(75% 65% at 32% 42%,#000,transparent);mask-image:radial-gradient(75% 65% at 32% 42%,#000,transparent)}
.hero-scan{position:absolute;left:0;right:0;height:2px;z-index:1;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,.65),transparent);
  animation:scan 7s linear infinite;opacity:.5}
@keyframes scan{0%{top:8%}50%{top:82%}100%{top:8%}}
.hero-in{position:relative;z-index:3;max-width:820px}
.hero h1{font-size:clamp(2.5rem,6vw,4.4rem);font-weight:800;margin:1.3rem 0 1.1rem}
.hero .lead{font-size:clamp(1.06rem,1.7vw,1.28rem);color:var(--body);max-width:640px;margin-bottom:2.2rem}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap}

/* faixa de métricas (HUD) */
.hud{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(20,26,36,.5)}
.hud-in{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.hud .cell{background:var(--bg);padding:30px 26px}
.hud .num{font-family:'Poppins',sans-serif;font-weight:700;font-size:2.05rem;color:var(--white);line-height:1;display:flex;align-items:baseline;gap:.25rem}
.hud .num .u{font-size:1rem;color:var(--cy)}
.hud .lbl{font-family:'JetBrains Mono',monospace;font-size:.74rem;letter-spacing:.1em;color:var(--mute);margin-top:.6rem;text-transform:uppercase}

/* pilares (ecossistema) */
.pillar{position:relative;padding-top:34px}
.pillar .k{font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.2em;color:var(--cy);position:absolute;top:24px;left:28px}
.pillar h3{margin-top:6px}

/* módulos com número */
.modnum{font-family:'JetBrains Mono',monospace;font-weight:600;font-size:.8rem;color:var(--cy);letter-spacing:.12em}

/* processo */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px;position:relative}
.step .n{font-family:'JetBrains Mono',monospace;font-weight:700;font-size:.9rem;color:var(--cy);letter-spacing:.1em;margin-bottom:1rem;display:block}
.step h4{font-size:1.05rem;margin-bottom:.45rem;color:var(--white)}
.step p{font-size:.9rem;color:var(--body)}
.step::before{content:"";position:absolute;top:0;left:26px;right:26px;height:2px;background:var(--grad);opacity:.5}

/* setores / aplicações */
.sector{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.25s var(--ease)}
.sector:hover{border-color:var(--cy);transform:translateY(-3px)}
.sector .ico{width:44px;height:44px;border-radius:11px;background:var(--panel2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.sector .ico svg{width:22px;height:22px;stroke:var(--cy);fill:none;stroke-width:1.6}
.sector h4{font-size:1.05rem;color:var(--white);margin-bottom:.4rem}
.sector p{font-size:.88rem;color:var(--body)}

/* stat inline (chips) */
.chips{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.chip{font-family:'JetBrains Mono',monospace;font-size:.76rem;letter-spacing:.06em;color:var(--txt);
  border:1px solid var(--line2);border-radius:999px;padding:.5rem 1rem;background:var(--panel)}
.chip b{color:var(--cy)}

/* faixa CTA */
.cta{
  background:radial-gradient(70% 130% at 16% 8%,rgba(28,74,132,.4),transparent 60%),
            radial-gradient(70% 130% at 90% 92%,rgba(79,70,229,.3),transparent 60%),var(--bg2);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center;
}
.cta h2{font-size:clamp(2rem,4vw,3rem);margin-bottom:1.1rem}
.cta p{max-width:640px;margin:0 auto 2.3rem;font-size:1.08rem}
.cta-btns{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}

/* ---------- rodapé ---------- */
footer{padding:64px 0 40px;border-top:1px solid var(--line);background:var(--bg)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.foot-logo{height:30px;margin-bottom:18px}
.foot-brand p{font-size:.9rem;color:var(--mute);max-width:300px}
.foot-col h5{font-family:'Poppins';font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin-bottom:16px}
.foot-col a,.foot-col span{display:block;font-size:.92rem;color:var(--body);padding:6px 0;transition:.2s}
.foot-col a:hover{color:var(--cy)}
.foot-contact a{display:flex;gap:10px;align-items:flex-start}
.foot-contact svg{width:17px;height:17px;flex:0 0 17px;margin-top:4px;stroke:var(--cy);fill:none;stroke-width:1.7}
.legal{margin-top:48px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-family:'JetBrains Mono',monospace;font-size:.76rem;color:var(--faint)}

/* ---------- contato ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.info-card{display:flex;gap:16px;padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:16px;transition:.25s var(--ease)}
.info-card:hover{border-color:var(--line2)}
.info-card .ico{width:46px;height:46px;flex:0 0 46px;border-radius:12px;background:var(--panel2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center}
.info-card .ico svg{width:22px;height:22px;stroke:var(--cy);fill:none;stroke-width:1.7}
.info-card .k{font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mute)}
.info-card .v{font-size:1.04rem;color:var(--white);font-weight:500;margin-top:2px}
.info-card .v.small{font-size:.95rem;font-weight:400;color:var(--body)}

form.contact{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px}
.field{margin-bottom:18px}
.field label{display:block;font-family:'JetBrains Mono',monospace;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mute);margin-bottom:8px}
.field input,.field textarea,.field select{
  width:100%;background:var(--bg);border:1px solid var(--line2);border-radius:10px;
  padding:.85rem 1rem;color:var(--white);font-family:'Inter',sans-serif;font-size:.96rem;transition:.2s;
}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--cy);box-shadow:0 0 0 3px rgba(34,211,238,.12)}
.field textarea{resize:vertical;min-height:120px}
.map-embed{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);margin-top:30px}
.map-embed iframe{width:100%;height:320px;border:0;display:block;filter:grayscale(.3) contrast(1.05)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:.75s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsivo ---------- */
@media(max-width:960px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .hud-in{grid-template-columns:repeat(2,1fr)}
  .split,.split.wide{grid-template-columns:1fr;gap:34px}
  .contact-grid{grid-template-columns:1fr;gap:34px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:640px){
  section{padding:76px 0}
  .nav-links{display:none}
  .nav-cta{display:none}
  .burger{display:block}
  .g4,.g3,.g2,.steps,.hud-in{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  .hero{min-height:auto;padding:120px 0 70px}
  .legal{flex-direction:column}
  .hud .cell{padding:24px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
}