body {
    margin: 0;
    padding: 0;
    font-family: Arial, Helvetica, sans-serif;
    background-color: #121212;
    color: #f0f0f0;
}

.container {
    max-width: 800px;
    margin: 5em auto;
    padding: 2em;
    background-color: #1e1e1e;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

h1 {
    color: #90caf9;
}

.nav-bar {
    background-color: #1e1e1e;
    padding: 1em;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

.nav-bar ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    gap: 2em
}

.nav-bar a {
    text-decoration: none;
    color: #90caf9;
    font-weight: bold;
    font-size: 1.2em;
    transition: color 0.3s ease;
}
.nav-bar a:hover {
    color: #ffffff;
}

.playground-zone {
  background-color: #1e1e1e;
  padding: 20px;
  margin-top: 20px;
  border: 1px dashed #444;
  color: #ddd;
}

section {
  margin-bottom: 2rem;
  padding: 1rem;
  background-color: #222;
  border-radius: 8px;
}