body {
    padding: 20px;
    background: linear-gradient(135deg, #c9c3ae, #fda085, #a1c4fd, #c2e9fb);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    min-height: 100vh;
  }

  @keyframes gradientBG {
    0% {
      background-position: 0% 50%;
    }
    50% {
      background-position: 100% 50%;
    }
    100% {
      background-position: 0% 50%;
    }
  }
  
  
    .book-card img {
      object-fit: contain;
      height: 250px;
    }
    .card-title {
      font-size: 1.1rem;
      font-weight: 600;
    }
    .card-text {
      font-size: 0.9rem;
      color: #555;
    }
    /* Responsive fix for card button bottom alignment */
    .card-body {
      display: flex;
      flex-direction: column;
      padding:0;
     
    }
    .book-card {
        max-height: 35rem;
    }
    .btn {
      white-space: nowrap;
   
    }

    
    .description{
        max-height: 09em;
        overflow-y: hidden;
        
    }

    .book-card {
        background: rgba(255, 255, 255, 0.15); /* translucent white */
        backdrop-filter: blur(10px);           /* blur background behind card */
        -webkit-backdrop-filter: blur(10px);   /* Safari support */
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 10px;
        padding: 15px;
        color: #fff;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
      }
      
      .book-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
      }
.book-card img {
  border-radius: 5px;
  margin-bottom: 10px;
}
.book-card img {
    border-radius: 5px;
    margin-bottom: 10px;
  }
        

  


  #loading {
    display: none;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    margin-top: 50px;
    height: 200px;
  }
  
  .book-icon-loader {
    width: 80px;
    height: 80px;
    animation: bounce 1.5s infinite ease-in-out;
  }
  
  @keyframes bounce {
    0%, 100% {
      transform: translateY(0);
      opacity: 1;
    }
    50% {
      transform: translateY(-15px);
      opacity: 0.8;
    }
  }
  
  #loading p {
    margin-top: 15px;
    font-weight: bold;
    color: #333;
    animation: blink 1.5s infinite;
  }
  
  @keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
  }
  



  #searchForm {
    max-width: 600px;
    margin: 0 auto;
    animation: fadeSlideDown 3s ease-out forwards;
    opacity: 0;
    transform: translateY(-30px);
  }
  
  @keyframes fadeSlideDown {
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  #searchInput {
    transition: all 0.3s ease;
    box-shadow: none;
    border: 1px solid transparent;
  }
  
  #searchInput:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 10px rgba(13, 110, 253, 0.3);
    background-color: #fff;
  }
  
  #searchForm button {
    transition: background-color 0.3s ease, transform 0.2s ease;
  }
  
  #searchForm button:hover {
    background-color: #0b5ed7;
    transform: scale(1.05);
  }

  
  #searchForm {
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.08);
    border-radius: 8px;
    overflow: hidden;
    background: white;
    padding: 10px;
  }
  

  #searchForm button {
    border-radius: 5px;
    transition: background-color 0.3s ease, transform 0.2s ease;
  }