* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #0d1117;
  color: #c9d1d9;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 3rem;
  background: #161b22;
  border-bottom: 1px solid #30363d;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-size: 1.5rem;
  color: #58a6ff;
}

.logo span {
  color: #1f6feb;
}

.navbar nav a {
  color: #c9d1d9;
  margin: 0 1rem;
  text-decoration: none;
  transition: color 0.3s;
}

.navbar nav a:hover {
  color: #58a6ff;
}

.hero {
  text-align: center;
  padding: 5rem 2rem;
}

.hero h2 span {
  color: #58a6ff;
}

.btn {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: #1f6feb;
  color: white;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.3s;
}

.btn:hover {
  background: #58a6ff;
}

.section {
  padding: 3rem 2rem;
  text-align: center;
}

.skills {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.skills li {
  background: #161b22;
  padding: 0.7rem 1.2rem;
  border-radius: 6px;
  border: 1px solid #30363d;
}

.projects {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 1.5rem;
}

.card {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 10px;
  padding: 1.5rem;
  width: 300px;
  transition: transform 0.3s, border-color 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  border-color: #58a6ff;
}

footer {
  background: #161b22;
  padding: 1rem;
  text-align: center;
  font-size: 0.9rem;
  border-top: 1px solid #30363d;
}