* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  font-family: Arial, sans-serif;
  background: #080d1b;
  color: #fff;
}

header {
  background: #0b1225;
  padding: 22px 8%;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.logo, footer h2 {
  font-size: 25px;
  color: white;
}

.logo span, footer span {
  color: #00c6ff;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 28px;
}

nav ul a {
  color: #ddd;
  text-decoration: none;
  transition: .3s;
}

nav ul a:hover {
  color: #00c6ff;
}

.nav-btn, .btn {
  text-decoration: none;
  padding: 13px 23px;
  border-radius: 7px;
  font-weight: bold;
}

.nav-btn, .primary {
  background: linear-gradient(90deg, #007bff, #00c6ff);
  color: white;
}

.hero {
  min-height: 580px;
  padding: 90px 8%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
  background: radial-gradient(circle at 80% 40%, #132c55, #080d1b 60%);
}

.hero-content {
  max-width: 650px;
}

.tag {
  color: #00c6ff;
  letter-spacing: 3px;
  font-size: 12px;
  font-weight: bold;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(38px, 5vw, 65px);
  line-height: 1.15;
  margin-bottom: 25px;
}

.hero h1 span, .about h2 span {
  color: #00c6ff;
}

.description {
  color: #b8c4d9;
  line-height: 1.8;
  margin-bottom: 35px;
}

.hero-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.secondary {
  border: 1px solid #00c6ff;
  color: #00c6ff;
}

.circle {
  width: 290px;
  height: 290px;
  border: 2px solid #00c6ff;
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: 0 0 70px #007bff55;
}

.inner-circle {
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: linear-gradient(135deg, #007bff, #00c6ff);
  display: grid;
  place-items: center;
  font-size: 65px;
  font-weight: bold;
  box-shadow: 0 0 50px #00c6ff88;
}

.about, .technology, .contact {
  padding: 85px 8%;
  text-align: center;
}

.about h2, .services h2, .technology h2,
.contact h2 {
  font-size: 34px;
  margin-bottom: 22px;
}

.about > p:last-child, .technology > p:not(.tag),
.contact > p:not(.tag) {
  max-width: 700px;
  margin: auto;
  color: #aebbd0;
  line-height: 1.8;
}

.services {
  padding: 85px 8%;
  text-align: center;
  background: #0c1428;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
  margin-top: 45px;
}

.card {
  background: #121e37;
  padding: 35px 25px;
  border: 1px solid #203453;
  border-radius: 12px;
  transition: .3s;
}

.card:hover {
  transform: translateY(-8px);
  border-color: #00c6ff;
  box-shadow: 0 10px 35px #007bff22;
}

.icon {
  font-size: 38px;
  margin-bottom: 20px;
}

.card h3 {
  margin-bottom: 15px;
}

.card p {
  color: #aebbd0;
  line-height: 1.7;
}

.tech-list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 35px;
}

.tech-list span {
  padding: 13px 24px;
  border: 1px solid #00c6ff;
  color: #00c6ff;
  border-radius: 25px;
}

.contact {
  background: linear-gradient(135deg, #101d3b, #07101f);
}

.contact .btn {
  display: inline-block;
  margin-top: 30px;
}

footer {
  text-align: center;
  padding: 35px 15px;
  background: #050914;
  color: #9ba9bf;
  line-height: 2;
}

footer h2 {
  margin-bottom: 12px;
}

@media(max-width: 850px) {
  .hero {
    flex-direction: column;
    text-align: center;
  }

  .hero-buttons {
    justify-content: center;
  }

  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .navbar {
    justify-content: center;
  }
}

@media(max-width: 550px) {
  nav ul {
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
  }

  .service-grid {
    grid-template-columns: 1fr;
  }

  .circle {
    width: 220px;
    height: 220px;
  }

  .inner-circle {
    width: 145px;
    height: 145px;
  }

  .about h2, .services h2,
  .technology h2, .contact h2 {
    font-size: 27px;
  }
}