body {
            background-color: #f8fafc;
            font-family: 'Inter', sans-serif;
        }

        .shelf-books__item {
            position: relative;
            width: 100%;
            height: 100%;
        }

        .flip-container {
            perspective: 1200px;
            width: 100%;
            height: 100%;
        }

        .flipper {
            transition: 0.7s;
            transform-style: preserve-3d;
            position: relative;
            width: 100%;
            height: 100%;
        }

        .flip-container.flipped .flipper {
            transform: rotateY(180deg);
        }

        .shelf-books__container {
            position: relative;
            width: 100%;
            height: 100%;
        }

        .shelf-books__cover {
            width: 100%;
            height: 100%;
            position: relative;
        }

        .shelf-books__back-cover {
            position: absolute;
            width: 100%;
            height: 100%;
            background: #1e293b;
            border-radius: 14px;
            left: 0;
            top: 0;
            z-index: 1;
        }

        .shelf-books__inside {
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            z-index: 2;
            pointer-events: none;
        }

        .shelf-books__page {
            width: 92%;
            height: 92%;
            background: #f1f5f9;
            border-radius: 10px;
            position: absolute;
            left: 4%;
            top: 4%;
            box-shadow: 0 1px 5px rgba(60, 60, 100, 0.12);
        }

        .shelf-books__page:nth-child(1) {
            z-index: 3;
        }

        .shelf-books__page:nth-child(2) {
            z-index: 2;
            left: 6%;
            top: 6%;
        }

        .shelf-books__page:nth-child(3) {
            z-index: 1;
            left: 8%;
            top: 8%;
        }

        .shelf-books__image {
            position: absolute;
            width: 100%;
            height: 100%;
            left: 0;
            top: 0;
            z-index: 10;
            border-radius: 14px;
            overflow: hidden;
        }

        .shelf-books__image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 14px;
        }

        .shelf-books__effect {
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 20;
        }

        .shelf-books__light {
            position: absolute;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 25;
            background: linear-gradient(120deg, rgba(255, 255, 255, 0.07) 0%, rgba(255, 255, 255, 0.23) 90%);
            border-radius: 14px;
        }

        .shelf-books__hitbox {
            position: absolute;
            width: 100%;
            height: 100%;
            left: 0;
            top: 0;
            z-index: 50;
            cursor: pointer;
        }

        .flip-container .back {
            transform: rotateY(180deg);
        }

        .flip-container .back,
        .flip-container .front {
            backface-visibility: hidden;
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
        }

        #peek-flipbook {
            width: 100%;
            height: 600px;
            box-shadow: 0 10px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
            border-radius: 0.75rem;
            margin-left: auto;
            margin-right: auto;
            transition: transform 0.35s cubic-bezier(.5, 1.7, .85, .67), box-shadow 0.35s;
        }

        #peek-flipbook .page {
            background-color: #ffffff;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        #peek-flipbook .page-content {
            width: 92%;
            height: 95%;
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        #peek-flipbook .page-content img {
            max-width: 100%;
            max-height: 100%;
            object-fit: contain;
            border-radius: 0.5rem;
        }

        #peek-flipbook .page-number {
            position: absolute;
            bottom: 8px;
            right: 15px;
            font-size: 0.875rem;
            color: #9ca3af;
        }

        @media (max-width: 1024px) {
            #peek-flipbook {
                height: 55vw;
                min-height: 400px;
            }
        }

        @media (max-width: 768px) {
            #peek-flipbook {
                height: 65vw;
                min-height: 350px;
            }
        }

        @media (max-width: 480px) {
            #peek-flipbook {
                width: 90vw !important;
                height: 45vw !important;
                min-width: 0 !important;
                max-width: 95vw !important;
                margin: 0 auto !important;
            }

            #peek-flipbook .page-number {
                font-size: 0.75rem;
                bottom: 6px;
                right: 10px;
            }
        }

        body,
        html {
            overflow-x: hidden;
        }