* {
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #121212;
  color: #eee;
  display: flex;
}

.sidebar {
  width: 240px;
  background: #000;
  height: 100vh;
  padding: 20px;
  position: fixed;
  overflow-y: auto;
  color: #00ffd1;
}

.sidebar h2 {
  font-size: 22px;
  margin-bottom: 20px;
  color: #00ffd1;
}

.sidebar ul {
  list-style: none;
  padding: 0;
}

.sidebar a {
  color: #00ffd1;
  text-decoration: none;
  display: block;
  padding: 10px 0;
  transition: 0.3s;
  font-weight: 500;
}

.sidebar a:hover {
  text-decoration: underline;
}

.content {
  margin-left: 260px;
  padding: 40px 20px;
  flex: 1;
}

h1, .head {
  color: #00ffd1;
  margin-top: 40px;
}

.subtitle {
  color: #7f5af0;
  font-size: 0.95rem;
  font-weight: bold;
  margin-top: 20px;
}

ul {
  margin-left: 20px;
  padding-left: 10px;
}

ul li {
  list-style-type: disc;
  margin-bottom: 6px;
  font-size: 0.95rem;
  line-height: 1.5;
}

a {
  color: #00ffd1;
  text-decoration: none;
}

a.medium {
  color: #7f5af0;
}

a:hover {
  text-decoration: underline;
}