* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Poppins', sans-serif;
  background-color: #f9fafb;
  color: #222;
  scroll-behavior: smooth;
}
header {
  height: 100vh;
  background: linear-gradient(120deg, #00bcd4, #4caf50);
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 50px;
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(0,0,0,0.2);
  backdrop-filter: blur(8px);
  z-index: 10;
}
.logo {
  font-size: 1.5rem;
  font-weight: bold;
}
.nav-links {
  list-style: none;
  display: flex;
  gap: 30px;
}
.nav-links a {
  text-decoration: none;
  color: white;
  font-weight: 500;
  transition: color 0.3s;
}
.nav-links a:hover {
  color: #ffd700;
}
.hero {
  text-align: center;
  margin-top: 150px;
}
.hero h2 {
  font-size: 3rem;
  margin-bottom: 20px;
}
.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}
.btn {
  background: white;
  color: #00bcd4;
  padding: 12px 25px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s;
}
.btn:hover {
  background: #222;
  color: white;
}
section {
  padding: 80px 10%;
  text-align: center;
}
section h2 {
  font-size: 2rem;
  margin-bottom: 40px;
  color: #00bcd4;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}
.card {
  background: white;
  border-radius: 15px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
  transition: transform 0.3s;
}
.card:hover {
  transform: translateY(-8px);
}
footer {
  background: #111;
  color: white;
  text-align: center;
  padding: 20px 0;
}
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s forwards;
}
.fade-in:nth-child(1) { animation-delay: 0.2s; }
.fade-in:nth-child(2) { animation-delay: 0.4s; }
.fade-in:nth-child(3) { animation-delay: 0.6s; }
@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}