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

body {
  background: #0d1117;
  color: #e6edf3;
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 900px;
  margin: auto;
  padding: 80px 20px;
}

.hero {
  text-align: center;
  margin-bottom: 80px;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 20px;
}

.subtitle {
  color: #58a6ff;
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.description {
  max-width: 600px;
  margin: auto;
  color: #8b949e;
}

.buttons {
  margin-top: 40px;
}

.buttons a {
  display: inline-block;
  margin: 10px;
  padding: 12px 24px;
  border: 1px solid #30363d;
  border-radius: 8px;
  text-decoration: none;
  color: #e6edf3;
  transition: 0.2s;
}

.buttons a:hover {
  background: #161b22;
  border-color: #58a6ff;
}

.projects h2 {
  margin-bottom: 30px;
}

.card {
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 20px;
}

.card h3 {
  margin-bottom: 10px;
  color: #58a6ff;
}