.site-nav {
  display: flex;
  justify-content: center; /* or use 'flex-end' to align right */
  background-color: #ffffff;
  border-bottom: 1px solid #eaeaea;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2rem;
}

.site-nav li a {
  text-decoration: none;
  font-weight: 600;
  color: #333;
  transition: color 0.3s ease;
  position: relative;
}

.site-nav li a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: #ff4757;
  transition: width 0.3s ease;
}

.site-nav li a:hover {
  color: #ff4757;
}

.site-nav li a:hover::after {
  width: 100%;
}

.about-section {
  max-width: 800px;
  margin: 4rem auto;
  padding: 0 1.5rem;
  font-size: 1.15rem;
  line-height: 1.8;
  color: #2c3e50;
  font-family: 'Segoe UI', sans-serif;
}

.about-section h1 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 1.5rem;
  color: #ff4757;
}

.about-section h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: #3742fa;
}

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

.about-section ul li {
  padding-left: 1.5rem;
  position: relative;
  margin: 0.5rem 0;
}

.about-section ul li::before {
  content: "➤";
  position: absolute;
  left: 0;
  color: #70a1ff;
  font-size: 1rem;
}

.about-section p {
  margin-bottom: 1.25rem;
}