:root{
  --bg:#0a0f0d;
  --bg-alt:#0f1613;
  --bg-elevated:#141d19;
  --line:#22302a;
  --line-bright:#324439;
  --text:#eaf3ee;
  --text-soft:#8fa89c;
  --text-faint:#5c6f65;
  --accent:#35f2a4;
  --accent-dim:#1c9a6c;
  --accent-glow:rgba(53,242,164,0.35);
  --gold:#f2c94c;
  --gold-soft:rgba(242,201,76,0.12);
  --danger:#ff7a68;
  --radius:16px;
  --maxw:1140px;
  color-scheme:dark;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(1100px 520px at 12% -8%, rgba(53,242,164,0.10), transparent 60%),
    radial-gradient(900px 500px at 92% 8%, rgba(242,201,76,0.06), transparent 55%),
    var(--bg);
  color:var(--text);
  font-family:'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  line-height:1.6;
}
h1,h2,h3{
  font-family:'Syne', system-ui, sans-serif;
  font-weight:700;
  letter-spacing:-0.01em;
  text-wrap:balance;
  margin:0;
  color:#fff;
}
a{color:var(--accent);}
img{max-width:100%;}
.container{max-width:var(--maxw); margin:0 auto; padding-inline:20px;}
.mono{font-family:'IBM Plex Mono', monospace;}
.bracket{font-family:'IBM Plex Mono', monospace; font-size:0.76rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--accent);}
.bracket::before{content:"[ ";}
.bracket::after{content:" ]";}

/* header */
.site-header{
  position:sticky; top:0; z-index:40; background:rgba(10,15,13,0.82);
  backdrop-filter:blur(10px); border-bottom:1px solid var(--line);
}
.site-header .container{display:flex; align-items:center; justify-content:space-between; padding-block:16px;}
.logo{display:flex; align-items:center; gap:10px; font-family:'Syne', sans-serif; font-weight:700; font-size:1.15rem; color:#fff; text-decoration:none;}
.logo .dot{
  width:9px; height:9px; border-radius:50%; background:var(--accent); display:inline-block;
  box-shadow:0 0 10px 2px var(--accent-glow);
}
nav.mainnav{display:flex; align-items:center; gap:26px;}
nav.mainnav a{color:var(--text-soft); text-decoration:none; font-size:0.9rem; font-weight:500;}
nav.mainnav a:hover{color:var(--text);}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:'IBM Plex Sans', sans-serif; font-weight:600; font-size:0.92rem;
  padding:12px 22px; border-radius:10px; text-decoration:none; border:1px solid transparent;
  cursor:pointer; transition:transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
}
.btn-primary{background:var(--accent); color:#04140d;}
.btn-primary:hover{box-shadow:0 0 0 4px var(--accent-glow); transform:translateY(-1px);}
.btn-ghost{background:transparent; border-color:var(--line-bright); color:var(--text);}
.btn-ghost:hover{border-color:var(--accent); color:var(--accent);}
.btn-block{width:100%;}
.btn:disabled{opacity:0.55; cursor:not-allowed;}

/* hero */
.hero{padding-block:76px 48px; position:relative; overflow:hidden;}
.hero-grid{display:grid; grid-template-columns:1.1fr 0.9fr; gap:52px; align-items:center;}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; font-family:'IBM Plex Mono', monospace;
  font-size:0.74rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--accent);
  background:rgba(53,242,164,0.08); border:1px solid rgba(53,242,164,0.25);
  padding:6px 13px; border-radius:99px; margin-bottom:20px;
}
.hero h1{font-size:clamp(2.3rem, 5vw, 3.5rem); line-height:1.05; margin-bottom:18px;}
.hero h1 em{font-style:normal; color:var(--accent);}
.hero p.lead{font-size:1.08rem; color:var(--text-soft); max-width:50ch; margin-bottom:28px;}
.hero-ctas{display:flex; gap:14px; flex-wrap:wrap;}
.hero-note{margin-top:18px; font-size:0.83rem; color:var(--text-faint);}

.mock{
  background:linear-gradient(180deg, var(--bg-elevated), var(--bg-alt));
  border:1px solid var(--line-bright); border-radius:var(--radius);
  padding:22px; box-shadow:0 0 0 1px rgba(53,242,164,0.06), 0 30px 70px -30px rgba(0,0,0,0.7), 0 0 60px -20px var(--accent-glow);
  position:relative;
}
.mock-head{display:flex; justify-content:space-between; align-items:center; margin-bottom:16px; padding-bottom:14px; border-bottom:1px dashed var(--line);}
.mock-title{font-family:'IBM Plex Mono', monospace; font-size:0.78rem; color:var(--text-soft);}
.live-pill{
  display:inline-flex; align-items:center; gap:6px; font-family:'IBM Plex Mono', monospace;
  font-size:0.68rem; letter-spacing:0.08em; color:var(--accent); background:rgba(53,242,164,0.1);
  border:1px solid rgba(53,242,164,0.3); padding:4px 10px; border-radius:99px;
}
.live-pill .blip{width:6px; height:6px; border-radius:50%; background:var(--accent); box-shadow:0 0 8px 2px var(--accent-glow);}
.mock-row{display:flex; justify-content:space-between; align-items:center; padding-block:10px; border-bottom:1px solid var(--line); font-size:0.9rem; font-family:'IBM Plex Mono', monospace;}
.mock-row:last-child{border-bottom:none;}
.mock-row b{font-variant-numeric:tabular-nums; color:var(--text);}
.mock-name{color:var(--accent); font-weight:600; font-family:'IBM Plex Sans', sans-serif;}
.mock-foot{display:flex; justify-content:space-between; align-items:center; padding-top:14px; margin-top:4px; font-size:0.78rem; color:var(--text-faint);}
.mock-foot .tag{color:var(--gold); font-family:'IBM Plex Mono', monospace;}

@media (prefers-reduced-motion: no-preference){
  .live-pill .blip{animation:blip 1.6s ease-in-out infinite;}
}
@keyframes blip{0%,100%{opacity:1;} 50%{opacity:0.25;}}

/* stat strip */
.stats{border-top:1px solid var(--line); border-bottom:1px solid var(--line); padding-block:28px; margin-top:12px;}
.stats .container{display:grid; grid-template-columns:repeat(4, 1fr); gap:24px;}
.stat b{display:block; font-family:'Syne', sans-serif; font-size:1.9rem; color:var(--accent); margin-bottom:4px;}
.stat span{font-size:0.82rem; color:var(--text-soft);}

/* sections */
section{padding-block:64px;}
.section-head{max-width:640px; margin-bottom:38px;}
.section-head .bracket{display:block; margin-bottom:14px;}
.section-head h2{font-size:clamp(1.7rem, 3.4vw, 2.3rem); margin-bottom:10px;}
.section-head p{color:var(--text-soft); font-size:1rem;}

.steps{display:grid; grid-template-columns:repeat(3, 1fr); gap:20px;}
.step{
  background:var(--bg-alt); border:1px solid var(--line); border-radius:var(--radius); padding:26px;
  transition:border-color .2s ease, transform .2s ease;
}
.step:hover{border-color:var(--accent-dim); transform:translateY(-2px);}
.step-num{
  font-family:'IBM Plex Mono', monospace; font-weight:600; color:var(--accent);
  font-size:0.85rem; margin-bottom:14px; display:block;
}
.step h3{font-size:1.08rem; margin-bottom:8px; color:var(--text);}
.step p{color:var(--text-soft); font-size:0.9rem; margin:0;}

.features-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:18px;}
.feature{
  background:var(--bg-alt); border:1px solid var(--line); border-radius:var(--radius); padding:22px;
  transition:border-color .2s ease, box-shadow .2s ease;
}
.feature:hover{border-color:rgba(53,242,164,0.4); box-shadow:0 0 30px -18px var(--accent-glow);}
.feature h3{font-size:1rem; margin-bottom:8px; color:var(--text);}
.feature p{color:var(--text-soft); font-size:0.88rem; margin:0;}

.models-row{display:flex; gap:10px; overflow-x:auto; padding-bottom:8px;}
.model-chip{
  flex:none; font-family:'IBM Plex Mono', monospace; background:var(--bg-alt); border:1px solid var(--line);
  border-radius:8px; padding:10px 16px; font-size:0.83rem; white-space:nowrap; color:var(--text-soft);
}

.plan-single{
  max-width:420px; margin:0 auto; background:linear-gradient(180deg, var(--bg-elevated), var(--bg-alt));
  border:1px solid rgba(53,242,164,0.35); border-radius:20px; padding:36px;
  box-shadow:0 0 60px -24px var(--accent-glow); text-align:center;
}
.plan-single .bracket{display:inline-block; margin-bottom:16px;}
.plan-single .price{font-family:'Syne', sans-serif; font-size:3.2rem; font-weight:700; color:#fff; margin-block:4px 2px;}
.plan-single .price span{font-family:'IBM Plex Sans', sans-serif; font-size:1rem; font-weight:500; color:var(--text-soft);}
.plan-single ul{list-style:none; padding:0; margin:26px 0 28px; display:flex; flex-direction:column; gap:12px; text-align:left;}
.plan-single li{font-size:0.92rem; padding-left:24px; position:relative; color:var(--text-soft);}
.plan-single li::before{content:"✓"; position:absolute; left:0; color:var(--accent); font-weight:700;}
.plan-single .fineprint{margin-top:16px; font-size:0.78rem; color:var(--text-faint);}

.faq{display:flex; flex-direction:column; gap:12px; max-width:760px;}
.faq details{background:var(--bg-alt); border:1px solid var(--line); border-radius:12px; padding:18px 20px;}
.faq summary{cursor:pointer; font-weight:600; list-style:none; color:var(--text);}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+"; float:right; color:var(--accent); font-weight:700;}
.faq details[open] summary::after{content:"–";}
.faq p{color:var(--text-soft); margin:12px 0 0; font-size:0.92rem;}

.cta-band{
  background:radial-gradient(600px 300px at 50% -40%, rgba(53,242,164,0.18), transparent 60%), var(--bg-elevated);
  border:1px solid var(--line-bright); border-radius:20px; padding:48px 36px; text-align:center;
}
.cta-band h2{margin-bottom:12px;}
.cta-band p{color:var(--text-soft); max-width:52ch; margin:0 auto 26px;}

footer{border-top:1px solid var(--line); padding-block:28px; margin-top:20px;}
footer .container{display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:0.84rem; color:var(--text-faint);}

/* cadastro page */
.signup-wrap{max-width:960px; margin:0 auto; padding:52px 20px 72px; display:grid; grid-template-columns:1fr 1fr; gap:44px; align-items:flex-start;}
.signup-side h1{font-size:2rem; margin-bottom:16px;}
.signup-side p{color:var(--text-soft); margin-bottom:22px;}
.signup-side ul{list-style:none; padding:0; display:flex; flex-direction:column; gap:12px;}
.signup-side li{font-size:0.92rem; padding-left:24px; position:relative; color:var(--text-soft);}
.signup-side li::before{content:"✓"; position:absolute; left:0; color:var(--accent); font-weight:700;}
.price-badge{
  display:inline-flex; align-items:baseline; gap:6px; font-family:'IBM Plex Mono', monospace;
  background:rgba(53,242,164,0.08); border:1px solid rgba(53,242,164,0.3); color:var(--accent);
  padding:8px 14px; border-radius:10px; margin-bottom:22px; font-size:0.95rem;
}
.price-badge b{font-family:'Syne', sans-serif; font-size:1.3rem; color:#fff;}

.card-form{background:var(--bg-elevated); border:1px solid var(--line-bright); border-radius:var(--radius); padding:30px; box-shadow:0 30px 70px -34px rgba(0,0,0,0.6);}
.field{margin-bottom:17px;}
.field label{display:block; font-size:0.84rem; font-weight:600; margin-bottom:7px; color:var(--text);}
.field input{
  width:100%; padding:12px 14px; border:1px solid var(--line-bright); border-radius:10px;
  font-size:0.95rem; font-family:inherit; background:var(--bg); color:var(--text);
}
.field input::placeholder{color:var(--text-faint);}
.field input:focus{outline:2px solid var(--accent); outline-offset:1px; border-color:var(--accent);}
.field-hint{font-size:0.78rem; color:var(--text-soft); margin-top:6px; font-family:'IBM Plex Mono', monospace;}
.field-hint.ok{color:var(--accent);}
.field-hint.bad{color:var(--danger);}
.form-msg{font-size:0.88rem; margin-top:14px; padding:11px 13px; border-radius:8px; display:none;}
.form-msg.show{display:block;}
.form-msg.error{background:rgba(255,122,104,0.12); color:var(--danger); border:1px solid rgba(255,122,104,0.3);}
.form-msg.success{background:rgba(53,242,164,0.1); color:var(--accent); border:1px solid rgba(53,242,164,0.3);}

@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr;}
  .steps, .features-grid{grid-template-columns:1fr;}
  .stats .container{grid-template-columns:repeat(2, 1fr); row-gap:20px;}
  nav.mainnav{display:none;}
  .signup-wrap{grid-template-columns:1fr; padding-top:36px;}
}