.book-detail {
    --book-text: #171536;
    --book-muted: #57556f;
    --book-line: #e5e0f0;
    color: var(--book-text);
}

.book-detail__inner {
    width: min(calc(100% - 2rem), 73rem);
    margin-inline: auto;
}

.book-detail__hero {
    padding: 1.5rem 0 clamp(2rem, 5vw, 4rem);
    border-bottom: 1px solid var(--book-line);
    background: linear-gradient(145deg, #f8f6ff 0%, #fff 65%);
}

.book-detail__breadcrumb {
    margin-bottom: clamp(1.25rem, 3vw, 2rem);
    font-size: .875rem;
}

.book-detail__breadcrumb a {
    color: var(--zap-purple-dark);
}

.book-detail__intro {
    display: grid;
    grid-template: "art title" auto "art summary" 1fr / minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 1.25rem clamp(2rem, 5vw, 4.5rem);
    align-items: start;
}

.book-detail__heading {
    grid-area: title;
    padding-top: clamp(.25rem, 1.2vw, 1.25rem);
}

.book-detail__format {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    margin: 0 0 .8rem;
    padding: .3rem .68rem;
    border-radius: 999px;
    background: #eeebff;
    color: var(--zap-purple-dark);
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.book-detail__heading h1 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.6rem);
    font-weight: 850;
    line-height: 1.07;
    letter-spacing: -.035em;
    overflow-wrap: anywhere;
}

.book-detail__rating {
    margin: .75rem 0 0;
    color: var(--book-muted);
    font-size: .9rem;
}

.book-detail__art {
    grid-area: art;
    min-width: 0;
}

.book-detail__stage {
    display: grid;
    min-height: clamp(20rem, 35vw, 28rem);
    place-items: center;
    padding: clamp(1.5rem, 4vw, 2.75rem);
    border: 1px solid #e3dcfb;
    border-radius: 1.4rem;
    background:
        radial-gradient(ellipse at 25% 15%, #fff 0%, transparent 52%),
        repeating-linear-gradient(135deg, #fff2 0 1px, transparent 1px 16px),
        linear-gradient(150deg, #f0ebfd, #e3dcfb);
}

.book-detail__cover {
    position: relative;
    display: block;
    max-width: 100%;
}

.book-detail__cover img {
    display: block;
    max-width: 100%;
    max-height: 24rem;
    border-radius: .25rem .6rem .6rem .25rem;
    box-shadow: -1px 0 0 #16133528, 0 1rem 2rem #2e1c6c40, 0 .2rem .45rem #2e1c6c26;
}

.book-detail__zoom {
    position: absolute;
    right: .55rem;
    bottom: .55rem;
    display: grid;
    width: 2rem;
    height: 2rem;
    place-items: center;
    border-radius: .55rem;
    background: #fff;
    color: var(--zap-purple-dark);
}

.book-detail__cover-placeholder {
    display: grid;
    width: clamp(6rem, 16vw, 10rem);
    aspect-ratio: 2 / 3;
    place-items: center;
    border: 1px solid #c8bbf5;
    border-left: .45rem solid #c8bbf5;
    border-radius: .25rem .65rem .65rem .25rem;
    background: #f8f5ff;
    color: var(--zap-purple-dark);
    font-size: 2.4rem;
}

.book-detail__thumbs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .6rem;
    margin-top: .75rem;
}

.book-detail__thumbs img {
    border: 1px solid var(--book-line);
    border-radius: .5rem;
    background: #fff;
    object-fit: contain;
}

.book-detail__summary {
    grid-area: summary;
}

.book-detail__purchase {
    padding: clamp(1rem, 2vw, 1.5rem);
    border: 1px solid var(--book-line);
    border-radius: 1rem;
    background: #fff;
    box-shadow: 0 .6rem 1.5rem #21154a0c;
}

.book-detail__price {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: .65rem;
    margin-bottom: .85rem;
}

.book-detail__price strong {
    font-size: clamp(1.7rem, 3vw, 2.25rem);
    font-weight: 800;
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
}

.book-detail__comparison-price {
    color: var(--book-muted);
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    text-decoration-thickness: .08em;
}

.book-detail__delivery,
.book-detail__share {
    color: var(--book-muted);
}

.book-detail__actions {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
}

.book-detail__actions .btn {
    display: grid;
    min-height: 2.8rem;
    flex: 1 1 7.5rem;
    place-items: center;
    font-weight: 700;
}

.book-detail__delivery {
    display: flex;
    align-items: baseline;
    gap: .5rem;
    margin: .9rem 0 0;
    font-size: .85rem;
}

.book-detail__preview-link,
.book-detail__share {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-top: .85rem;
}

.book-detail__preview-link {
    width: fit-content;
    color: var(--zap-purple-dark);
    font-weight: 700;
}

.book-detail__share a {
    display: grid;
    width: 2.25rem;
    height: 2.25rem;
    place-items: center;
    border: 1px solid var(--book-line);
    border-radius: .55rem;
    color: var(--zap-purple-dark);
}

.book-detail__share a:hover,
.book-detail__sample:hover {
    border-color: #c8bbf5;
    background: #f8f5ff;
}

.book-detail__section {
    padding: clamp(1.75rem, 4vw, 3rem) 0;
}

.book-detail__section + .book-detail__section {
    border-top: 1px solid var(--book-line);
}

.book-detail__section h2 {
    margin: 0 0 1rem;
    font-size: clamp(1.45rem, 3vw, 2rem);
    font-weight: 800;
    scroll-margin-top: 6rem;
}

.book-detail__description {
    max-width: 72ch;
    margin: 0;
    color: var(--book-muted);
    font-size: 1.03rem;
    line-height: 1.75;
    overflow-wrap: anywhere;
}

.book-detail__samples {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.book-detail__sample {
    overflow: hidden;
    border: 1px solid var(--book-line);
    border-radius: .75rem;
    background: #fff;
    color: var(--book-text);
    text-decoration: none;
}

.book-detail__sample img {
    display: block;
    width: 100%;
    aspect-ratio: 3 / 4;
    border-bottom: 1px solid var(--book-line);
    background: #f8f7fc;
    object-fit: contain;
}

.book-detail__sample span {
    display: flex;
    justify-content: space-between;
    padding: .65rem .8rem;
    font-size: .875rem;
    font-weight: 700;
}

.book-sample .modal-dialog {
    --bs-modal-width: 68rem;
}

.book-sample .modal-content {
    overflow: hidden;
    border: 0;
    border-radius: 1rem;
}

.book-sample .modal-header,
.book-sample__navigation {
    flex-shrink: 0;
    background: #fff;
}

.book-sample__tools {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: auto;
    padding-left: 1rem;
}

.book-sample button {
    min-height: 44px;
}

.book-sample .btn-close {
    min-width: 44px;
    margin: -.5rem;
    padding: .5rem;
}

.book-sample__reader {
    min-height: 12rem;
    padding: 1rem;
    background: #eeeaf4;
    overscroll-behavior: contain;
}

.book-sample__reader img {
    display: block;
    width: 100%;
    max-width: 900px;
    height: auto;
    margin-inline: auto;
    box-shadow: 0 .25rem 1rem #1715361a;
}

.book-sample__reader img[hidden] {
    display: none;
}

.book-sample__reader.is-zoomed img {
    width: 1400px;
    max-width: none;
}

.book-sample__status {
    margin: 1rem 0;
    text-align: center;
    color: #171536;
}

.book-sample__navigation {
    display: flex;
    justify-content: space-between;
    gap: .5rem;
}

.book-sample__navigation span {
    font-size: .875rem;
    font-variant-numeric: tabular-nums;
}

@media (max-width: 575.98px) {
    .book-sample .modal-content {
        border-radius: 0;
    }

    .book-sample__reader {
        padding: .5rem;
    }
}

@media (max-width: 767.98px) {
    .book-detail__hero {
        padding-top: 1rem;
    }

    .book-detail__breadcrumb [aria-current="page"] {
        display: none;
    }

    .book-detail__intro {
        grid-template: "title" "art" "summary" / minmax(0, 1fr);
        gap: .9rem;
    }

    .book-detail__stage {
        min-height: 0;
        padding: 1rem;
        border-radius: 1rem;
    }

    .book-detail__cover img {
        max-height: clamp(9rem, 26vh, 13rem);
    }

    .book-detail__samples {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: .75rem;
    }
}