:root {
  --primary: #8b5cf6;
  --secondary: #22d3ee;
  --bg: #151e46;
  --card: #0f172a;
  --text: #e2e8f0;
  --muted: #94a3b8;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  min-height: 100vh;
}

.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  padding: 20px 8%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(8, 16, 52, 0.4);
  transition: 0.3s ease;
  z-index: 1000;
}

.navbar.scrolled {
  background: rgba(2, 6, 23, 0.9);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo img {
  height: 45px;
  filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.6));
 
}

.logo span {
  font-size: 22px;
  font-weight: bold;
  color: #22d3ee;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 30px;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-size: 16px;
  transition: 0.3s ease;
}

.nav-links a:hover {
  color: var(--secondary);
}

.hero {
  min-height: 100vh;
  padding: 0 8%;
  display: flex;
  align-items: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(139, 92, 246, 0.45), transparent 30%),
    radial-gradient(circle at 80% 30%, rgba(34, 211, 238, 0.35), transparent 28%),
    linear-gradient(135deg, #020617, #111827);
}

.hero-content {
  max-width: 760px;
  animation: fadeUp 1s ease forwards;
}

.hero h1 {
  font-size: 64px;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -2px;
}

.hero p {
  font-size: 20px;
  color: var(--muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

.btn {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 15px 32px;
  border-radius: 40px;
  text-decoration: none;
  font-weight: bold;
  box-shadow: 0 12px 30px rgba(139, 92, 246, 0.4);
  transition: 0.3s ease;
}

.btn:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 18px 45px rgba(34, 211, 238, 0.35);
}

.features {
  padding: 90px 8%;
  background: #020617;
  text-align: center;
}

.features h2 {
  font-size: 42px;
  margin-bottom: 50px;
}

.features-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.feature-card {
  background:
    linear-gradient(var(--card), var(--card)) padding-box,
    linear-gradient(135deg, var(--primary), var(--secondary)) border-box;
  padding: 38px 26px;
  border-radius: 22px;
  border: 1px solid transparent;

  opacity: 0;                 
  transform: translateY(40px); 
  transition: 0.6s ease;
}
.feature-card.show {
  opacity: 1;
  transform: translateY(0);
}
.feature-card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 45px rgba(139, 92, 246, 0.25);
}

.feature-card h3 {
  color: var(--secondary);
  margin-bottom: 15px;
  font-size: 22px;
}

.feature-card p {
  color: var(--muted);
  line-height: 1.7;
}

.footer {
  text-align: center;
  padding: 30px;
  background: #020617;
  color: var(--muted);
  border-top: 1px solid rgba(148, 163, 184, 0.15);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(35px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 18px 6%;
    flex-direction: column;
    gap: 15px;
  }

  .nav-links {
    gap: 18px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero {
    padding: 70px 6%;
    text-align: center;
    justify-content: center;
  }

  .hero h1 {
    font-size: 42px;
    letter-spacing: -1px;
  }

  .hero p {
    font-size: 17px;
  }

  .features {
    padding: 70px 6%;
  }

  .features h2 {
    font-size: 30px;
  }

  .features-container {
    grid-template-columns: 1fr;
  }
}