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

body {
  background: #f4f4f9;
  color: #333;
}

header {
  background: #4a90e2;
  color: white;
  padding: 20px;
  text-align: center;
}

header h1 {
  font-size: 2em;
}

nav {
  margin-top: 10px;
}

nav a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
  font-weight: bold;
}

section {
  padding: 40px 20px;
  max-width: 900px;
  margin: auto;
}

.about, .projects, .contact {
  margin-bottom: 50px;
}

.project-card {
  background: white;
  padding: 20px;
  margin: 15px 0;
  border-radius: 10px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  transition: transform 0.2s;
}

.project-card:hover {
  transform: scale(1.02);
}

footer {
  background: #4a90e2;
  color: white;
  text-align: center;
  padding: 15px;
  margin-top: 30px;
}

button {
  background: #4a90e2;
  color: white;
  border: none;
  padding: 10px 20px;
  margin-top: 10px;
  border-radius: 5px;
  cursor: pointer;
}

button:hover {
  background: #357abd;
}