/* === Index / landing page === */
body {
  min-height: 100vh;
  padding: 48px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

h1 {
  font-size: 28px;
  font-weight: 700;
  color: #f0f6fc;
  margin-bottom: 32px;
}

nav {
  width: 100%;
  max-width: 480px;
}

nav ul {
  list-style: none;
}

nav > ul > li {
  margin-bottom: 16px;
}

nav a {
  display: block;
  padding: 12px 16px;
  background: #161b22;
  border: 1px solid #30363d;
  border-radius: 8px;
  color: #58a6ff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s;
}

nav a:hover {
  background: #1c2128;
  border-color: #58a6ff;
}

nav ul ul {
  margin-top: 8px;
  padding-left: 24px;
}

nav ul ul li {
  margin-bottom: 8px;
}

nav ul ul a {
  font-size: 14px;
  padding: 10px 16px;
  background: #0d1117;
}

.section-label {
  display: block;
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 500;
  color: #f0f6fc;
}