/* Global Styles */
body {
    margin: 0;
    font-family: 'Helvetica Neue', sans-serif;
    background: #f8f9fa;
    color: #333;
    transition: background 0.3s ease;
  }
  
  /* Keyframes */
  @keyframes fadeInUp {
    0% {
      opacity: 0;
      transform: translateY(30px);
    }
    100% {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  /* Hero Section */
  .hero {
    background: url('Hero.jpg') no-repeat center center / cover;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    color: #fff;
  }
  
  .hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.4);
  }
  
  .hero-content {
    position: relative;
    z-index: 1;
    animation: fadeInUp 1s ease-in-out;
  }
  
  .hero-content h1 {
    font-size: 4rem;
    margin: 0;
    font-weight: 700;
  }
  
  .hero-content p {
    margin-top: 1rem;
    font-size: 1.2rem;
  }
  
  .btn {
    display: inline-block;
    margin-top: 2rem;
    padding: 0.75rem 1.5rem;
    background: #4A90E2;
    color: #fff;
    border-radius: 5px;
    text-decoration: none;
    transition: background 0.3s ease, transform 0.3s ease;
  }
  .btn:hover {
    background: #3874ba;
    transform: scale(1.05);
  }
  
  /* Header */
  header {
    background-color: #fff;
    padding: 1rem 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: relative;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
  }
  
  header.sticky {
    position: fixed;
    background-color: #4A90E2;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  }
  
  header nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 0;
    padding: 0;
  }
  
  header nav ul li a {
    color: #333;
    text-decoration: none;
    font-weight: bold;
    letter-spacing: 0.5px;
    transition: color 0.3s ease, transform 0.3s ease;
  }
  header nav ul li a:hover {
    color: #fff;
    transform: translateY(-2px);
  }
  
  main {
    padding-top: 80px;
    max-width: 1200px;
    margin: 2rem auto;
    padding: 1rem;
  }
  
  section {
    margin-bottom: 3rem;
  }
  
  /* About Content */
  .about-content {
    background: #fff;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.7s ease-in-out;
  }
  
  .about-content h3, .about-content h4 {
    color: #4A90E2;
  }
  
  .about-content ul {
    list-style: none;
    padding: 0;
  }
  
  .about-content li {
    margin-bottom: 1rem;
  }
  
  .about-content ul li ul {
    margin-top: 0.5rem;
    padding-left: 1rem;
  }
  
  .about-content ul li ul li {
    margin-bottom: 0.5rem;
  }
  
  .about-content pre {
    background: #f4f4f4;
    padding: 1rem;
    border-radius: 5px;
    overflow-x: auto;
  }
  
  /* GitHub Section */
  #github {
    text-align: center;
  }
  
  /* Footer */
  footer {
    background-color: #4A90E2;
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
  }
  
  /* Links */
  a {
    color: #4A90E2;
    text-decoration: none;
  }
  a:hover {
    color: #3874ba;
  }
  
  /* Sentiment Classes */
  .sentiment-neutral {
    color: orange;
  }
  .sentiment-negative {
    color: red;
  }
  .sentiment-positive {
    color: green;
  }
  
  /* Responsive */
  @media (max-width: 768px) {
    .hero-content h1 {
      font-size: 2.5rem;
    }
    .hero-content p {
      font-size: 1rem;
    }
    header nav ul {
      gap: 1rem;
    }
  }
  @media (max-width: 600px) {
    main {
      margin: 1rem auto;
    }
    .swiper-container {
      height: 300px;
    }
  }