/* General Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  body {
    font-family: Arial, sans-serif;
    background-color: #f8f8f8;
    color: #333;
  }
  
  header {
    background-color: #fff;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
  }
  
  nav ul {
    display: flex;
    justify-content: flex-end;
    padding: 1rem;
    list-style: none;
  }
  
  nav a {
    margin-left: 1.5rem;
    text-decoration: none;
    color: #333;
    font-weight: bold;
  }
  
  nav a:hover {
    color: #0078ff;
  }
  
  .hero {
    text-align: center;
    padding: 4rem 1rem;
    background-color: #fff;
  }
  
  h1 {
    font-size: 2.5rem;
    margin: 1rem 0;
  }

 /* Add space below headings */
  h2 {
    margin-bottom: 1rem; /* Adds spacing between heading and paragraph */
    } 
  .btn {
    display: inline-block;
    margin: 1rem;
    padding: 0.75rem 1.5rem;
    text-align: left; /* Ensure body content defaults to left alignment */
    text-decoration: none;
    background-color: #0078ff;
    color: #fff;
    border-radius: 5px;
  }
  
  .btn.dark {
    background-color: #333;
  }
  
  section {
    padding: 4rem 2rem;
    text-align: left;
  }
  
  footer {
    text-align: center;
    padding: 1rem;
    background-color: #ebebeb4f;
    color: #000000;
  }
  /* Course Notes Section */
  #course-notes a {
    text-decoration: none;
    color: #0078ff;
    font-size: 1.2rem;
    font-weight: bold;
  }
  #course-notes a:hover {
    text-decoration: underline;
    color: #0056b3;
  }