body {
  margin: 0;
  font-family: Arial, sans-serif;
  scroll-behavior: smooth;
}
header {
  background: #333;
  color: white;
  padding: 15px 50px;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
header nav a {
  color: white;
  margin: 0 15px;
  text-decoration: none;
}
section {
  padding: 80px 50px;
  min-height: 100vh;
}
#home {
  background: linear-gradient(to right, #667eea, #764ba2);
  color: white;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}
#about, #projects, #contact {
  background: #f4f4f4;
}
h1, h2 {
  margin-bottom: 15px;
}
.project-card {
  background: white;
  padding: 20px;
  margin: 15px 0;
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}
footer {
  text-align: center;
  padding: 20px;
  background: #333;
  color: white;
}
button {
  padding: 10px 20px;
  background: #667eea;
  border: none;
  color: white;
  border-radius: 5px;
  cursor: pointer;
}
button:hover {
  background: #764ba2;
}
.highlight {
  color: yellow;
}

/* 📱 Responsive for mobile */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    text-align: center;
  }
  header nav {
    margin-top: 10px;
  }
  section {
    padding: 60px 20px;
  }
}