* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #0f1016;
            color: #fff;
            padding: 20px;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
        }
        
        .back-button {
            margin-bottom: 20px;
            display: inline-block;
            padding: 8px 16px;
            background-color: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 20px;
            cursor: pointer;
            text-decoration: none;
            font-size: 14px;
            transition: all 0.3s ease;
        }
        
        .back-button:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        
        .book-detail {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }
        
        @media (min-width: 768px) {
            .book-detail {
                flex-direction: row;
            }
        }
        
        .book-poster {
            flex: 0 0 300px;
            position: relative;
        }
        
        .book-poster img {
            width: 100%;
            height: auto;
            border-radius: 10px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        }
        
        .book-poster::after {
            content: '';
            position: absolute;
            bottom: -20px;
            left: 10%;
            width: 80%;
            height: 40px;
            background: rgba(0, 0, 0, 0.2);
            filter: blur(15px);
            border-radius: 50%;
            z-index: -1;
        }
        
        .book-info {
            flex: 1;
        }
        
        .book-title {
            font-size: 36px;
            font-weight: 700;
            margin-bottom: 8px;
            background: linear-gradient(to right, #fff, #a5a5a5);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .book-author {
            font-size: 20px;
            color: #a5a5a5;
            margin-bottom: 20px;
        }
        
        .book-metadata {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-bottom: 25px;
        }
        
        .metadata-item {
            padding: 5px 15px;
            background-color: rgba(255, 255, 255, 0.1);
            border-radius: 20px;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 5px;
        }
        
        .rating {
            display: flex;
            align-items: center;
            gap: 5px;
            margin-bottom: 25px;
        }
        
        .stars {
            color: #ffd700;
            letter-spacing: 2px;
        }
        
        .rating-count {
            color: #a5a5a5;
            font-size: 14px;
        }
        
        .synopsis {
            margin-bottom: 30px;
            line-height: 1.6;
            color: #d0d0d0;
        }
        
        .synopsis h3 {
            margin-bottom: 10px;
            font-size: 20px;
        }
        
        .actions {
            display: flex;
            gap: 15px;
            margin-bottom: 30px;
        }
        
        .btn {
            padding: 12px 25px;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            text-decoration: none;
        }
        
        .btn-primary {
            background: linear-gradient(to right, #4776E6, #8E54E9);
            color: white;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 7px 15px rgba(142, 84, 233, 0.3);
        }
        
        .btn-secondary {
            background-color: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: white;
        }
        
        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
        }
        
        .icon {
            width: 18px;
            height: 18px;
            display: inline-block;
        }
        
        .book-details {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
            margin-bottom: 30px;
        }
        
        .detail-item {
            padding: 15px;
            background-color: rgba(255, 255, 255, 0.05);
            border-radius: 10px;
        }
        
        .detail-item h4 {
            font-size: 16px;
            color: #a5a5a5;
            margin-bottom: 5px;
        }
        
        .detail-item p {
            font-size: 16px;
        }
        
        .similar-books {
            margin-top: 40px;
        }
        
        .similar-books h3 {
            font-size: 24px;
            margin-bottom: 20px;
        }
        
        .books-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            gap: 20px;
        }
        
        .book-card {
            position: relative;
            transition: transform 0.3s ease;
        }
        
        .book-card:hover {
            transform: translateY(-10px);
        }
        
        .book-card img {
            width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        }
        
        .book-card-title {
            margin-top: 10px;
            font-size: 14px;
            font-weight: 600;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        
        .book-card-author {
            font-size: 12px;
            color: #a5a5a5;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }