body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: #0d0d0d;
  color: #e2e2e2;
  line-height: 1.7;
}

a {
  color: #79a9ff;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

header {
  padding: 20px;
  border-bottom: 1px solid #222;
  background: #121212;
}
header h1 {
  margin: 0;
  font-size: 1.4rem;
}
header h1 a {
  color: #fff;
}
nav {
  margin-top: 10px;
}
nav a {
  margin-right: 15px;
}

main {
  max-width: 900px;
  margin: 40px auto;
  padding: 0 20px;
}

.hero h2 { margin-top: 0; }

.button {
  background: #1f3fff;
  padding: 8px 14px;
  border-radius: 6px;
  display: inline-block;
  color: #fff;
}
.button:hover {
  background: #3e58ff;
}

.project {
  margin-bottom: 35px;
  padding-bottom: 20px;
  border-bottom: 1px solid #222;
}
.project h3 { margin: 0; }

footer {
  text-align: center;
  padding: 20px;
  color: #555;
  border-top: 1px solid #222;
}