body {
  font-family: "Poppins", sans-serif;
  background: #f9f9f9;
  color: #333;
  transition: background 0.3s, color 0.3s;
}

header {
  background: #222;
  color: #fff;
  padding: 2rem;
  text-align: center;
  position: sticky;
  top: 0;
}

nav a {
  margin: 0 1rem;
  color: #fff;
  font-weight: 600;
  transition: color 0.3s;
}

nav a:hover {
  color: #00adb5;
}

.skills-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.8rem;
}

.project-card {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  transition: transform 0.2s;
}

.project-card:hover {
  transform: translateY(-5px);
}

body.dark {
  background: #121212;
  color: #ddd;
}