body {
    background-color: #090a0a;
    color: #f0f0f0;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    text-align: center;
  }
  #bg-video {
position: fixed;
top: 0;
left: 0;
width: 100vw;
height: 100vh;
object-fit: cover;
z-index: -1;
}
tbody{
    background-color: #989292;
  }
  header {
    background-color: #263238;
    color: white;
    padding: 20px;
    text-align: center;
  }
  section {
    margin: 20px auto;
    max-width: 800px;
  }
  .content {
    background-color: #121212;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
  }
  h1, h2, p {
    margin: 10px 0;
  }
  p {
    font-size: 1.2rem;
  }
  ul {
    padding-left: 20px;
    text-align: left;
}
  header, section, footer, .register {
    padding: 20px;
  }
  h1, h2 {
    color: #00bcd4;
  }
  .register {
     
    background-color: #2196f3;
  }
  .register a {
      width: auto;
    color: white;
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
  }
  .register a:hover {
    text-decoration: underline;
  }
  table {
    width: 90%;
    margin: 0 auto;
    border-collapse: collapse;
    margin-top: 20px;
  }
  th, td {
    border: 1px solid #555;
    padding: 10px;
  }
  th {
    background-color: #263238;
  }
  tr:nth-child(even) {
    background-color: #1e1e1e;
  }
  .footer {
      background-color: #2c56b6;
      color: white;
      padding: 10px;
      
      bottom: 0;
      width: 100%;
  }
  ul {
    list-style-type: disc;
    padding-left: 40px;
    text-align: left;
    display: inline-block;
  }
  .content p, .content li {
    margin: 10px 0;
  }
  .r_btn {
    background-color: #ff6600;
    color: white;
    padding: 10px 20px;
    font-size: 1rem;
    text-decoration: none;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0,0,0,0.5);
    margin-bottom: 10px;
    transition: background 0.3s;
  }
  .r_btn:hover {
    background-color: #e65c00;
  }