* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
 body {
  font-family: 'Inter', sans-serif;
  background: #f4f4f4;
  color: #333;
  line-height: 1.6;
  padding-bottom: 60px;
}
 header {
  background: #000;
  color: #fff;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 999;
}
 header h1 {
  font-size: 1.5rem;
}
 header nav a {
  color: #fff;
  margin-left: 1.5rem;
  text-decoration: none;
  font-weight: 600;
}
 main {
  max-width: 900px;
  margin: 2rem auto;
  padding: 0 1rem;
}
 section {
  margin-bottom: 3rem;
}
 h2 {
  font-size: 1.8rem;
  margin-bottom: 1rem;
  color: #222;
}
 p, li {
  font-size: 1.05rem;
  margin-bottom: 0.7rem;
}
 ul {
  list-style: inside;
}
 .tag {
  display: inline-block;
  background: #222;
  color: #fff;
  border-radius: 20px;
  padding: 0.3rem 1rem;
  margin: 0.3rem;
  font-size: 0.9rem;
}
 footer {
  text-align: center;
  padding: 2rem 1rem;
  background: #000;
  color: #fff;
  position: fixed;
  width: 100%;
  bottom: 0;
}
 a {
  color: #0070f3;
  text-decoration: none;
}
 a:hover {
  text-decoration: underline;
}