* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
  }

  body {
    background-color: #121212;
    color: #f5f5f5;
    line-height: 1.6;
  }

  header {
    padding: 20px 8%;
    background: #1c1c1c;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  }

  header h1 {
    font-size: 24px;
    color: #eaeaea;
  }

  .social-icons {
    display: flex;
    gap: 15px;
  }

  .social-icons a {
    font-size: 18px;
    color: white;
    background: #444;
    padding: 8px;
    border-radius: 50%;
    transition: 0.3s ease;
  }

  .social-icons a:hover {
    background: #00b0ff;
    transform: scale(1.1);
  }

  /* SPLIT HERO + ABOUT */
  .top-section {
    display: flex;
    flex-wrap: wrap;
    padding: 60px 8%;
    gap: 40px;
  }

  .left-side {
    flex: 1;
    min-width: 280px;
  }

  .right-side {
    flex: 1.2;
    min-width: 300px;
    background: #1e1e1e;
    border-radius: 12px;
    padding: 40px;
  }

  .hero-badge {
    display: inline-block;
    background: #585858;
    color: #fff;
    padding: 6px 14px;
    font-size: 13px;
    border-radius: 20px;
    margin-bottom: 20px;
    font-weight: 600;
  }

  .hero h2 {
    font-size: 32px;
    margin-bottom: 20px;
    color: #00b0ff;
  }

  .hero p {
    font-size: 16px;
    color: #ddd;
    margin-bottom: 30px;
  }

  .about-section h2 {
    font-size: 28px;
    margin-bottom: 25px;
    color: #00b0ff;
  }

  .about-section p {
    font-size: 16px;
    color: #ddd;
    margin-bottom: 15px;
    line-height: 1.7;
  }

  .about-section strong {
    color: #fff;
  }

  .about-section .quote {
    font-style: italic;
    color: #00b0ff;
    margin: 15px 0;
  }

  /* MEDIUM ARTICLES */
  #medium, #medium2 {
    padding: 60px 8%;
  }

  #medium .articles, #medium2 .articles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
  }

  .article-card {
    background: #1e1e1e;
    padding: 20px;
    border-radius: 10px;
    transition: 0.3s;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .article-card:hover {
    transform: translateY(-5px);
    background: #262626;
  }

  .article-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #fff;
  }
  .hero-subtitle {
        font-size: 14px;
        color: #bbb;
        margin-bottom: 30px;
        line-height: 1.6;
        font-weight: 400;
    }

  .article-card p {
    font-size: 14px;
    color: #ccc;
  }

  .article-card a {
    color: #00b0ff;
    text-decoration: none;
    font-weight: 500;
    margin-top: 10px;
  }

  footer {
    text-align: center;
    padding: 30px;
    background: #1c1c1c;
    font-size: 14px;
    color: #777;
  }

  @media(max-width: 900px){
    .top-section {
      flex-direction: column;
    }
    .right-side, .left-side {
      flex: 1 1 100%;
    }
  }
  /* Floating Button */
#chat-button {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  background-color: #4CAF50;
  color: white;
  border-radius: 50%;
  text-align: center;
  line-height: 60px;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(0,0,0,0.3);
  z-index: 9999;
}

/* Chat Popup */
.chat-popup {
  position: fixed;
  bottom: 90px; /* Above the button */
  right: 20px;
  width: 300px;
  border: 1px solid #ccc;
  background: white;
  box-shadow: 0 0 10px rgba(0,0,0,0.3);
  font-family: Arial, sans-serif;
  border-radius: 10px 10px 0 0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
}

/* Hidden by default */
.hidden {
  display: none;
}

.chat-header {
  background: #4CAF50;
  color: white;
  padding: 10px;
  cursor: pointer;
  user-select: none;
  border-radius: 10px 10px 0 0;
}

.chat-body {
  max-height: 250px;
  overflow-y: auto;
  padding: 10px;
  border-top: 1px solid #ccc;
  border-bottom: 1px solid #ccc;
}

.chat-input {
  display: flex;
  padding: 5px;
  border-top: 1px solid #ccc;
}

.chat-input input {
  flex: 1;
  padding: 5px;
  border-radius: 5px;
  border: 1px solid #ccc;
}

.chat-input button {
  padding: 5px 10px;
  margin-left: 5px;
  border-radius: 5px;
  border: none;
  background-color: #4CAF50;
  color: white;
  cursor: pointer;
}

.chat-input button:hover {
  background-color: #45a049;
}

.user-msg { 
  color: blue; 
  margin: 5px 0; 
}

.bot-msg { 
  color: green; 
  margin: 5px 0; 
}