* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
  }
  
  body {
    font-family: 'Helvetica Neue', sans-serif;
    background-color: #f2f2f2;
    color: #333;
  }
  .site-header {
    background-color: #1d1f20;
    padding: 15px 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .main-nav {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .logo {
    color: white;
    font-weight: bold;
    font-size: 20px;
    cursor: pointer;
  }
  .nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
  }

  .nav-links li a {
    color: white;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s ease;
  }
  .nav-links li a:hover {
    color: #d4a200;
  }
  .auth-buttons {
    display: flex;
    gap: 10px;
  }
  .auth-buttons button {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
  }
  .auth-buttons button:first-child {
    background-color: #333;
    color: white;
  }
  .auth-buttons button:first-child:hover{
    background-color: #6f6f6f;
  }
  .auth-buttons .signup {
    background-color: #00bcd4;
    color: white;
  }
  .auth-buttons .signup:hover {
    background-color: #048b9a;
  }
  .article{
    padding: 40px 30px;
    display: flex;
    justify-content: space-between;
    gap: 20px;
    width: 100%;
    position: relative;
    margin-top: 40px;
  }
  .article h2 {
    color: #f2e9e9;
    font-size: 18px;
    position: absolute;
    top: -20px;
    left: 50px;
    background-color: #333;
    padding: 10px;
    font-weight: 100;
  }
  .article-card {
    background-color: white;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    height: auto; 
    width: 100%;
  }
  .article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }
  .article-image {
    width: 100%;
    height: 200px;
    margin-bottom: 15px;
  }
  .article-category {
    color: #ff9800;
    font-size: 10px;
    text-transform: uppercase;
    font-weight: bold;
    margin-bottom: 10px;
    margin-left: 12px
  }
  
  .article-title {
    font-size: 16px;
    color: #111;
    margin-bottom: auto;
    margin-left: 12px
  }
  .article-author {
    color: #777;
    font-size: 10px;
    margin-top: 15px;
    margin-left: 12px;
    margin-bottom: 10px;
  }
  .courses {
    display: flex;
    gap: 20px;
    margin-left: 20px;
  }