:root{
  --yellow:#FFD100;
  --black:#050505;
  --dark:#111111;
  --gray:#a9a9a9;
  --white:#ffffff;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:Arial, Helvetica, sans-serif;
  background:var(--black);
  color:var(--white);
}
.header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:28px 7%;
  position:sticky;
  top:0;
  background:rgba(5,5,5,.88);
  backdrop-filter: blur(10px);
  z-index:10;
  border-bottom:1px solid rgba(255,209,0,.18);
}
.logo{
  font-size:42px;
  font-weight:900;
  letter-spacing:-2px;
}
.logo span{color:var(--yellow)}
nav{display:flex;gap:26px;align-items:center}
nav a{
  color:var(--white);
  text-decoration:none;
  font-size:15px;
}
.btn-small{
  background:var(--yellow);
  color:#000!important;
  padding:10px 16px;
  border-radius:999px;
  font-weight:700;
}
.hero{
  min-height:86vh;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:70px;
  align-items:center;
  padding:80px 7%;
  background:
    radial-gradient(circle at 72% 25%, rgba(255,209,0,.23), transparent 28%),
    radial-gradient(circle at 20% 40%, rgba(255,209,0,.12), transparent 24%);
}
.tag{
  color:var(--yellow);
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:2px;
}
h1{
  font-size:82px;
  line-height:.95;
  margin:14px 0 24px;
  letter-spacing:-4px;
}
.subtitle{
  font-size:22px;
  line-height:1.45;
  color:#e7e7e7;
  max-width:720px;
}
.actions{display:flex;gap:16px;margin-top:34px;flex-wrap:wrap}
.btn{
  background:var(--yellow);
  color:#000;
  padding:16px 24px;
  border-radius:14px;
  text-decoration:none;
  font-weight:800;
  display:inline-block;
}
.btn.ghost{
  background:transparent;
  color:var(--yellow);
  border:1px solid var(--yellow);
}
.phone{
  background:#0c0c0c;
  border:1px solid rgba(255,255,255,.18);
  border-radius:38px;
  padding:28px;
  max-width:390px;
  margin:auto;
  box-shadow:0 0 70px rgba(255,209,0,.28);
}
.phone-header{
  font-size:26px;
  font-weight:900;
  margin-bottom:28px;
}
.phone-header small{
  display:block;
  color:var(--gray);
  font-size:13px;
  font-weight:400;
}
.msg{
  padding:13px 15px;
  border-radius:16px;
  margin:12px 0;
  font-size:14px;
  line-height:1.35;
}
.user{
  background:var(--yellow);
  color:#000;
  margin-left:60px;
}
.bot{
  background:#1f1f1f;
  color:#fff;
  margin-right:45px;
}
.section{
  padding:90px 7%;
}
.section h2{
  font-size:46px;
  margin:0 0 20px;
  letter-spacing:-1.5px;
}
.section>p{
  color:#d5d5d5;
  font-size:20px;
  max-width:900px;
}
.cards{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  margin-top:42px;
}
.card{
  background:#111;
  border:1px solid rgba(255,209,0,.25);
  border-radius:24px;
  padding:28px;
}
.card h3{color:var(--yellow);margin-top:0}
.card p{color:#d7d7d7;line-height:1.45}
.dark{
  background:#0b0b0b;
  border-top:1px solid rgba(255,209,0,.14);
  border-bottom:1px solid rgba(255,209,0,.14);
}
.segments{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:18px;
  margin-top:36px;
}
.segments div{
  background:linear-gradient(145deg,#171717,#0d0d0d);
  border:1px solid rgba(255,209,0,.2);
  border-radius:20px;
  padding:28px;
  font-size:24px;
  font-weight:800;
}
.segments span{
  color:#cfcfcf;
  font-size:15px;
  font-weight:400;
}
.impact{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:40px;
}
.impact div{
  background:var(--yellow);
  color:#000;
  border-radius:24px;
  padding:30px;
}
.impact strong{font-size:30px}
.cta{
  text-align:center;
  padding:100px 7%;
  background:linear-gradient(135deg,#151515,#000);
}
.cta h2{font-size:46px;margin:0 0 10px}
.cta p{font-size:20px;color:#d7d7d7}
footer{
  padding:34px 7%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  border-top:1px solid rgba(255,255,255,.1);
  color:#aaa;
}
@media(max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:50px}
  h1{font-size:54px}
  nav{display:none}
  .cards,.segments,.impact{grid-template-columns:1fr}
  footer{display:block;text-align:center}
}