body {
  font-family: 'Lexend', sans-serif;
  background-color: #4CAF50;
  color: white;
  margin: 0;
  padding: 0;
  line-height: 1.4;
  padding-bottom: 100px;
  font-size: 0.9rem;
}

.page-wrapper {
  max-width: 640px;
  margin: 0 auto;
  padding: clamp(0.75rem, 4vw, 2rem);
}

.container {
  margin-bottom: 2.5rem;
}

h1 {
  font-size: clamp(1.3rem, 4vw, 1.8rem);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  margin-bottom: 0.75rem;
}

p {
  font-size: clamp(0.85rem, 2vw, 0.95rem);
  max-width: 60ch;
  margin-bottom: 0.9rem;
}

/* Optional enhancement: tighter width for improved reading */
.container p {
  margin-left: auto;
  margin-right: auto;
}

/* Giscus iframe container fix */
.giscus-wrapper {
  background: white;
  padding: 0.75em;
  border-radius: 10px;
  max-width: 640px;
  margin: 0 auto;
  color: black;
  overflow-x: auto;
}

/* Light responsive refinement */
@media (max-width: 480px) {
  h1 {
    text-align: center;
  }

  .giscus-wrapper {
    padding: 0.5em;
  }
}

.navbar {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  background-color: #90ee90;
  padding: 0.6rem;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar a {
  color: #00724c;
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
}

.navbar a:hover {
  text-decoration: underline;
  color: #005a3c;
}