:root{
  --bg:#0a0e17;
  --bg-alt:#0e1420;
  --panel:#111827cc;
  --border:#1f2a3d;
  --text:#e6ebf2;
  --muted:#8b98ab;
  --accent1:#06e5c8;
  --accent2:#7c5cff;
  --accent-grad: linear-gradient(120deg, var(--accent1), var(--accent2));
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
:focus-visible{outline:2px solid var(--accent1); outline-offset:3px; border-radius:4px;}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter', sans-serif;
  line-height:1.6;
  overflow-x:hidden;
}
h1,h2,h3,.logo{font-family:'Space Grotesk', sans-serif;}

/* background grid + glow */
.bg-fx{
  position:fixed; inset:0; z-index:-1;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(6,229,200,0.12), transparent 40%),
    radial-gradient(circle at 85% 10%, rgba(124,92,255,0.14), transparent 40%),
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size:auto, auto, 44px 44px, 44px 44px;
}

/* nav */
header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  gap:32px;
  padding:20px 6vw;
  background:rgba(10,14,23,0.7);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .3s ease, background .3s ease;
}
header.scrolled{background:rgba(10,14,23,0.92); box-shadow:0 12px 30px rgba(0,0,0,0.3);}
.logo{font-weight:700; font-size:1.3rem; letter-spacing:0.5px; flex-shrink:0;}
.logo span{background:var(--accent-grad); -webkit-background-clip:text; background-clip:text; color:transparent;}
nav{flex:1; display:flex; justify-content:center;}
nav ul{list-style:none; display:flex; gap:36px;}
nav a{color:var(--muted); text-decoration:none; font-size:0.95rem; font-weight:500; transition:color .2s;}
nav a:hover{color:var(--text);}
.header-actions{display:flex; align-items:center; gap:20px; flex-shrink:0;}
.nav-cta{
  background:var(--accent-grad); color:#06121a; padding:11px 24px; border-radius:10px;
  font-weight:600; font-size:0.9rem; text-decoration:none; white-space:nowrap;
  transition:transform .2s, box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-2px); box-shadow:0 10px 24px rgba(6,229,200,0.22);}
.menu-toggle{display:none; background:none; border:none; color:var(--text); font-size:1.6rem; cursor:pointer;}

section{padding:130px 6vw 90px; max-width:1200px; margin:0 auto; position:relative;}

/* hero */
#hero{
  min-height:100vh; display:flex; flex-direction:column; justify-content:center;
  padding-top:90px; position:relative;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; width:fit-content;
  background:var(--panel); border:1px solid var(--border); padding:6px 14px; border-radius:999px;
  color:var(--accent1); font-size:0.8rem; font-weight:600; letter-spacing:0.5px; margin-bottom:24px;
}
.eyebrow::before{content:''; width:7px; height:7px; border-radius:50%; background:var(--accent1); box-shadow:0 0 8px var(--accent1);}
h1{font-size:clamp(2.2rem, 5.5vw, 4rem); font-weight:700; max-width:820px; line-height:1.15; letter-spacing:-0.5px;}
h1 .grad{background:var(--accent-grad); -webkit-background-clip:text; background-clip:text; color:transparent;}
.hero-sub{color:var(--muted); font-size:1.15rem; max-width:620px; margin-top:24px;}
.hero-actions{display:flex; gap:24px; margin-top:44px; flex-wrap:wrap;}
.btn{
  padding:16px 32px; border-radius:12px; font-weight:600; text-decoration:none; font-size:0.95rem;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease; display:inline-flex; align-items:center; gap:8px;
}
.btn-primary{background:var(--accent-grad); color:#06121a;}
.btn-primary:hover{transform:translateY(-3px); box-shadow:0 14px 34px rgba(6,229,200,0.25);}
.btn-ghost{background:transparent; color:var(--text); border:1px solid var(--border);}
.btn-ghost:hover{transform:translateY(-3px); border-color:var(--accent1); color:var(--accent1);}

.hero-note{color:var(--muted); font-size:0.85rem; margin-top:18px; letter-spacing:0.2px;}

.hero-stats{
  display:flex; gap:48px; margin-top:56px; padding-top:32px; flex-wrap:wrap;
  border-top:1px solid var(--border);
}
.hero-stats div strong{display:block; font-size:1.6rem; font-family:'Space Grotesk';}
.hero-stats div span{color:var(--muted); font-size:0.85rem;}

.scroll-cue{
  position:absolute; bottom:36px; left:50%; transform:translateX(-50%);
  width:1px; height:46px; overflow:hidden; opacity:0.7;
  background:linear-gradient(var(--border), transparent);
}
.scroll-cue::after{
  content:''; position:absolute; top:-20px; left:-2px; width:5px; height:5px;
  border-radius:50%; background:var(--accent1); box-shadow:0 0 8px var(--accent1);
  animation:scrollcue 1.8s infinite;
}
@keyframes scrollcue{
  0%{top:-10px; opacity:0;}
  30%{opacity:1;}
  100%{top:46px; opacity:0;}
}
@media (max-width:760px){ .scroll-cue{display:none;} }

/* section heading */
.section-head{margin-bottom:56px; max-width:640px;}
.section-head .eyebrow{margin-bottom:16px;}
.section-head h2{font-size:clamp(1.8rem, 3.5vw, 2.6rem); font-weight:700;}
.section-head p{color:var(--muted); margin-top:14px; font-size:1.05rem;}

/* about */
#sobre .about-grid{display:grid; grid-template-columns:220px 1fr; gap:56px; align-items:start;}
.avatar{
  width:200px; height:200px; border-radius:20px;
  background:var(--panel); border:1px solid var(--border); display:flex; align-items:center; justify-content:center;
  font-family:'Space Grotesk'; font-weight:700; font-size:3.2rem; color:#06121a;
}
#sobre p{color:var(--muted); font-size:1.05rem; margin-bottom:16px; max-width:640px;}
#sobre strong{color:var(--text);}

/* services */
.cards{display:grid; grid-template-columns:repeat(auto-fit, minmax(260px, 1fr)); gap:28px;}
.card{
  background:var(--panel); border:1px solid var(--border); border-radius:18px; padding:34px;
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card:hover{transform:translateY(-6px); border-color:var(--accent1); box-shadow:0 20px 44px rgba(6,229,200,0.1);}
.card .icon{
  width:56px; height:56px; border-radius:14px; background:rgba(6,229,200,0.1);
  display:flex; align-items:center; justify-content:center; margin-bottom:24px;
}
.card h3{font-size:1.2rem; margin-bottom:12px; font-weight:600;}
.card p{color:var(--muted); font-size:0.95rem;}

/* como funciona */
.steps{display:grid; grid-template-columns:repeat(4, 1fr); gap:28px;}
.step{
  background:var(--panel); border:1px solid var(--border); border-radius:18px; padding:30px 26px;
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.step:hover{transform:translateY(-6px); border-color:var(--accent2); box-shadow:0 20px 44px rgba(124,92,255,0.12);}
.step-num{
  font-family:'Space Grotesk', sans-serif; font-size:1.7rem; font-weight:700;
  background:var(--accent-grad); -webkit-background-clip:text; background-clip:text; color:transparent;
  display:block; margin-bottom:14px;
}
.step h3{font-size:1.05rem; margin-bottom:8px; font-weight:600;}
.step p{color:var(--muted); font-size:0.92rem;}

/* whatsapp floating button */
.whatsapp-fab{
  position:fixed; right:24px; bottom:24px; z-index:150;
  width:56px; height:56px; border-radius:50%; background:#25D366;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 30px rgba(37,211,102,0.4); transition:transform .2s, box-shadow .2s;
}
.whatsapp-fab:hover{transform:translateY(-3px) scale(1.05); box-shadow:0 14px 36px rgba(37,211,102,0.55);}
.whatsapp-fab svg{width:28px; height:28px;}
.whatsapp-fab::after{
  content:'Fale conosco'; position:absolute; right:68px; white-space:nowrap;
  background:#0e1420; border:1px solid var(--border); color:var(--text);
  font-size:0.82rem; font-weight:500; padding:8px 14px; border-radius:8px;
  opacity:0; pointer-events:none; transform:translateX(6px); transition:opacity .2s, transform .2s;
}
.whatsapp-fab:hover::after{opacity:1; transform:translateX(0);}
@media (max-width:760px){ .whatsapp-fab::after{display:none;} }

/* modal — Solicitar Demanda */
.modal-overlay{
  position:fixed; inset:0; z-index:300; background:rgba(6,10,18,0.75); backdrop-filter:blur(4px);
  display:flex; align-items:center; justify-content:center; padding:24px;
  opacity:0; pointer-events:none; transition:opacity .25s ease;
}
.modal-overlay.open{opacity:1; pointer-events:auto;}
.modal{
  background:#0e1420; border:1px solid var(--border); border-radius:22px; padding:40px;
  max-width:640px; width:100%; max-height:88vh; overflow-y:auto; position:relative;
  transform:translateY(16px); transition:transform .25s ease;
  box-shadow:0 30px 80px rgba(0,0,0,0.5);
}
.modal-overlay.open .modal{transform:translateY(0);}
.modal-close{
  position:absolute; top:20px; right:20px; width:36px; height:36px; border-radius:50%;
  background:var(--panel); border:1px solid var(--border); color:var(--muted);
  font-size:1.4rem; cursor:pointer; line-height:1; transition:color .2s, border-color .2s, transform .2s;
  display:flex; align-items:center; justify-content:center;
}
.modal-close:hover{color:var(--text); border-color:var(--accent1); transform:rotate(90deg);}
.modal-head{margin-bottom:28px;}
.modal-head h3{font-size:1.5rem; font-weight:700; margin:12px 0 8px; font-family:'Space Grotesk', sans-serif;}
.modal-head p{color:var(--muted); font-size:0.95rem;}
.modal form{background:none; border:none; padding:0; display:flex; flex-direction:column; gap:18px;}
.form-row{display:grid; grid-template-columns:1fr 1fr; gap:18px;}
body.modal-open{overflow:hidden;}

/* thank-you page */
.thanks-page{
  min-height:100vh; display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center; padding:24px; max-width:560px; margin:0 auto;
}
.thanks-page h1{font-size:clamp(1.8rem,4vw,2.6rem); font-weight:700; margin-bottom:16px; font-family:'Space Grotesk', sans-serif;}
.thanks-page .hero-sub{color:var(--muted); font-size:1.1rem; max-width:480px; margin-bottom:32px;}

/* nexum */
#nexum{
  border-radius:24px; background:linear-gradient(160deg, #0d1b1e, #0f0d1f);
  border:1px solid var(--border); margin:0 6vw; max-width:none; padding:64px 6vw;
}
.badge{
  display:inline-block; padding:5px 14px; border-radius:999px; font-size:0.78rem; font-weight:600;
  background:rgba(124,92,255,0.15); color:#b3a3ff; border:1px solid rgba(124,92,255,0.35); margin-bottom:20px;
}
.nexum-banner{width:100%; max-width:520px; border-radius:14px; display:block; margin:0 0 28px; box-shadow:0 20px 50px rgba(0,0,0,0.35);}
#nexum h2{font-size:clamp(1.8rem,3.5vw,2.4rem); margin-bottom:18px;}
#nexum p{color:var(--muted); max-width:640px; margin-bottom:28px; font-size:1.02rem;}
.nexum-panel{
  display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
  background:#0a0e17; border:1px dashed var(--border); border-radius:14px; padding:22px 26px;
}
.nexum-panel .status{display:flex; align-items:center; gap:10px; color:var(--muted); font-size:0.9rem;}
.pulse{width:10px; height:10px; border-radius:50%; background:var(--accent2); box-shadow:0 0 0 0 rgba(124,92,255,0.6); animation:pulse 2s infinite;}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(124,92,255,0.5);}
  70%{box-shadow:0 0 0 10px rgba(124,92,255,0);}
  100%{box-shadow:0 0 0 0 rgba(124,92,255,0);}
}
.btn-disabled{background:#1a2230; color:#5b6779; padding:13px 24px; border-radius:12px; font-weight:600; font-size:0.9rem; cursor:not-allowed;}

/* contact */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:56px;}
.contact-info a{color:var(--accent1); text-decoration:none; font-weight:600; transition:color .2s;}
.contact-info a:hover{color:var(--text);}
.contact-info p{color:var(--muted); margin-bottom:20px;}
.contact-list{list-style:none; margin-top:24px; display:flex; flex-direction:column; gap:18px;}
.contact-list li{display:flex; align-items:center; gap:12px; color:var(--muted); font-size:0.95rem;}
form{background:var(--panel); border:1px solid var(--border); border-radius:18px; padding:32px; display:flex; flex-direction:column; gap:20px;}
label{font-size:0.85rem; color:var(--muted); margin-bottom:8px; display:block;}
input, textarea, select{
  width:100%; background:#0a0e17; border:1px solid var(--border); border-radius:10px; padding:13px 16px;
  color:var(--text); font-family:inherit; font-size:0.95rem; transition:border-color .2s, box-shadow .2s;
}
input:focus, textarea:focus, select:focus{outline:none; border-color:var(--accent1); box-shadow:0 0 0 3px rgba(6,229,200,0.15);}
textarea{resize:vertical; min-height:110px;}
form button{
  background:var(--accent-grad); border:none; color:#06121a; font-weight:700; padding:15px; border-radius:10px;
  cursor:pointer; font-size:0.95rem; transition:transform .2s ease, box-shadow .2s ease; margin-top:4px;
}
form button:hover{transform:translateY(-2px); box-shadow:0 14px 30px rgba(6,229,200,0.22);}

footer{
  border-top:1px solid var(--border); padding:32px 6vw; display:flex; justify-content:space-between;
  color:var(--muted); font-size:0.85rem; flex-wrap:wrap; gap:12px;
}

.reveal{opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease;}
.reveal.in{opacity:1; transform:translateY(0);}

@media (max-width:900px){
  .cards{grid-template-columns:1fr;}
  #sobre .about-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr 1fr;}
}
@media (max-width:760px){
  nav ul{
    position:fixed; top:64px; right:0; left:0; background:#0a0e17f7; flex-direction:column;
    padding:24px 6vw 28px; gap:20px; border-bottom:1px solid var(--border);
    border-radius:0 0 20px 20px; box-shadow:0 20px 40px rgba(0,0,0,0.35);
    transform:translateY(-130%); transition:transform .3s ease;
  }
  nav ul.open{transform:translateY(0);}
  .menu-toggle{display:block;}
  .nav-cta{display:none;}
  .hero-stats{gap:28px;}
  .steps{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .modal{padding:28px 22px;}
  .whatsapp-fab{right:16px; bottom:16px; width:52px; height:52px;}
}