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

body {
  font-family: system-ui, sans-serif;
  background-color: #ffffff;
  color: #333;
  line-height: 1.6;
}

header {
  background: #0d1117;
  color: white;
  padding: 1rem 2rem;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.2rem;
  font-weight: bold;
  color: #58a6ff;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

nav ul li a {
  color: white;
  text-decoration: none;
}

nav ul li a:hover {
  color: #58a6ff;
}

.hero {
  text-align: center;
  padding: 4rem 2rem;
  background-color: #f6f8fa;
}

.hero h2 {
  font-size: 2rem;
}

.highlight {
  color: #0366d6;
}

.about, .projects, .contact {
  padding: 2rem;
  max-width: 900px;
  margin: auto;
}

.project-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.project-card {
  border: 1px solid #ddd;
  padding: 1rem;
  border-radius: 8px;
  background: #fff;
}

.project-card h4 {
  margin-bottom: 0.5rem;
  color: #0366d6;
}

.project-card a {
  display: inline-block;
  margin-top: 0.5rem;
  color: #0366d6;
}

.contact ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.contact ul li a {
  color: #0366d6;
}

footer {
  text-align: center;
  padding: 1rem;
  background: #f6f8fa;
  font-size: 0.9rem;
}