* {
    margin: 0; padding: 0; box-sizing: border-box;
  }
  html, body {
    width: 100%; height: 100%;
    margin: 0; padding: 0;
    overflow-x: hidden;  /* prevent horizontal scroll */
    font-family: Arial, sans-serif;
    background: #121212;
    color: white;
  }

  nav {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 60px;
    background: #222;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 1000;
  }
  nav .logo {
    font-weight: bold;
    font-size: 1.5rem;
  }
  nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
  }
  nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
  }
  nav ul li a:hover {
    text-decoration: underline;
  }

  /* Hero section */
  .hero {
    margin-top: 60px; 
    position: relative;
    width: 100vw;
    height: calc(100vh - 60px);
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    justify-content:flex-start;
    align-items: center;
    text-align: center;
    overflow: hidden;
  }

  .hero-content {
    max-width: 900px;
    padding: 0 20px;
    text-align: left;
  }
  .hero h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
  }
  .hero p {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    font-weight: bold;
  }
  .btn {
    background: white;
    color: #764ba2;
    font-weight: bold;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    text-decoration: none;
    display: inline-block;
    transition: background-color 0.3s ease;
  }
  .btn:hover {
    background-color: #5a3991;
    color: white;
  }
  .social-icons {
  position: absolute;
  right: 30px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.social-icons img {
  width: 32px;
  height: 32px;
  filter: invert(1); /* make icon white if it's black */
  transition: transform 0.3s ease;
}

.social-icons img:hover {
  transform: scale(1.2);
}
#particles-js {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
   
}