body {
    margin: 0;
    font-family: 'Helvetica Neue', sans-serif;
    color: #fff;
    background: linear-gradient(to bottom, #6a0dad, #ff69b4);
    text-align: center;
  }
  
  .background {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/placeholder-bg.jpg');
    background-size: cover;
    background-position: center;
    filter: blur(4px) brightness(0.6);
    z-index: -1;
  }
  
  header h1 {
    font-size: 2.5em;
    margin: 0.5em 0;
  }
  
  nav ul {
    display: flex;
    justify-content: center;
    list-style-type: none;
    padding: 0;
    margin: 0;
    gap: 1em;
  }
  
  nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 0.5em 1em;
    border-radius: 10px;
    background-color: rgba(255, 255, 255, 0.2);
    transition: background 0.3s;
  }
  
  nav ul li a:hover {
    background-color: rgba(255, 255, 255, 0.4);
  }
  
  .main-image {
    max-width: 300px;
    margin-top: 1em;
    border-radius: 12px;
  }
  
  .presave-btn {
    display: inline-block;
    margin-top: 2em;
    padding: 1em 2em;
    font-size: 1.2em;
    background-color: #ff69b4;
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
  }
  
  .countdown {
    margin-top: 2em;
  }
  
  #timer {
    font-size: 1.5em;
    font-weight: bold;
  }