.book-details-page {
    background: var(--bg-main);
}

.book-details-container {
    display: grid;
    grid-template-columns: minmax(300px, 440px) minmax(0, 1fr);
    gap: 3rem;
    align-items: start;

    max-width: 1600px;
    margin: 0 auto;
    padding: 5rem 5%;
}

.detail-image-container {
    position: sticky;
    top: 8rem;
}

.detail-image-container img {
    width: 100%;
    box-shadow: var(--shadow);
}

.detail-info {
    padding-top: 0.5rem;
    min-width: 0;
}

.book-heading {
    min-width: 0;
}

.book-heading.has-editions {
    max-width: calc(100% - 312px);
}

.detail-info h1 {
    margin-bottom: 1.25rem;

    font-size: clamp(3rem, 6vw, 5rem);
    line-height: 1;
}

.book-tagline {
    max-width: 760px;
    margin-bottom: 2rem;

    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.6;
}

.detail-description {
    max-width: 760px;
}

.detail-description p {
    margin-bottom: 1rem;

    font-size: 1.02rem;
    line-height: 1.8;
}

.detail-description br {
    display: none;
}

.book-editions {
    display: grid;
    gap: 0.75rem;
    max-width: none;
    margin: 0;
}

.book-edition {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(115px, 1fr));
    gap: 0.4rem 0.5rem;
    margin: 0;
    padding: 0.65rem;
    background: var(--bg-alt);
    border: 1px solid var(--border);
}

.book-edition div {
    display: grid;
    align-content: start;
    gap: 0.2rem;
    overflow-wrap: anywhere;
}

/* In editions with an ISBN and ASIN, keep both identifiers together. */
.book-edition div:nth-child(3) {
    grid-column: 2;
}

.book-edition dt {
    color: var(--text-muted);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.book-edition dd {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
}

.book-detail-body {
    display: grid;
    min-width: 0;
}

.book-detail-body.has-editions {
    grid-template-columns: minmax(0, 1fr) minmax(220px, 280px);
    gap: 2rem;
    align-items: start;
}

.book-copy {
    min-width: 0;
}

@media (max-width: 1200px) {
    .book-heading.has-editions {
        max-width: none;
    }

    .book-detail-body.has-editions {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .book-editions {
        max-width: 760px;
    }
}

@media (max-width: 600px) {
    .book-edition {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .book-edition div:nth-child(3) {
        grid-column: auto;
    }
}

.series-navigation {
    position: static;
    display: block;
    width: auto;
    margin: 0 auto;
    padding: 0;
    background: transparent;
    border: 0;
    backdrop-filter: none;
}

.series-navigation ol {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem 1.25rem;
    max-width: 760px;
    margin: 0 auto;
    padding: 0;
    list-style-position: inside;
}

.series-navigation a {
    color: var(--accent);
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 0.15em;
}

/* ==========================
   CONTINUE SERIES SECTION
========================== */

.continue-series-section {
    max-width: 1220px;
    margin: 0 auto;
    padding: 0 5% 5rem;
}

.continue-series-section h2 {
    margin-bottom: 0.75rem;

    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    text-align: center;
}

.continue-series-intro {
    max-width: 680px;
    margin: 0 auto 2.5rem;

    color: var(--text-muted);
    text-align: center;
}

.series-book-row {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2rem;
}

.series-book-card {
    position: relative;

    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 1.25rem;
    align-items: start;

    padding: 1.25rem;

    background: var(--bg-card);
    border: 1px solid var(--border);
    box-shadow: 0 10px 25px rgba(0,0,0,.07);
}

.series-book-card.current {
    outline: 2px solid #c59b45;
    outline-offset: 4px;
}

.series-cover-column {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.series-cover-column img {
    width: 130px;
    aspect-ratio: 2 / 3;
    object-fit: cover;
    box-shadow: 0 8px 18px rgba(0,0,0,.14);
}

.series-cover-column .btn {
    width: 130px;
    min-height: 2.75rem;

    display: flex;
    align-items: center;
    justify-content: center;

    padding: .75rem .85rem;

    font-size: .74rem;
    font-weight: 800;
    line-height: 1.1;
    text-align: center;
    text-transform: uppercase;

    box-shadow: 0 7px 18px rgba(0,0,0,.12);
}

.series-cover-column .btn-view {
    background: #fffaf2;
    color: #222222;
    border: 1px solid #cfc5b6;
}

.series-cover-column .btn-view:hover,
.series-cover-column .btn-view:focus-visible {
    background: #efe8dc;
    transform: translateY(-2px);
}

.series-card-copy h3,
.series-book-card h3 {
    margin: 0 0 .35rem;

    font-family: var(--font-heading);
    font-size: 1.35rem;
    line-height: 1.1;
}

.series-card-copy p,
.series-book-card p {
    margin: 0 0 .9rem;

    font-size: .9rem;
    line-height: 1.45;
}

.series-book-card .series-status {
    display: inline-block;

    margin-bottom: .5rem;
    padding: .3rem .55rem;

    background: #3f5e32;
    color: #ffffff;

    font-size: .68rem;
    font-weight: 800;
    letter-spacing: .08em;
    line-height: 1;
    text-transform: uppercase;
}

.series-book-card .current-label {
    display: inline-block;

    margin-bottom: .5rem;
    padding: .3rem .55rem;

    background: #402080;
    color: #ffffff;

    font-size: .68rem;
    font-weight: 800;
    letter-spacing: .08em;
    line-height: 1;
    text-transform: uppercase;
}

.series-map-link {
    margin-top: 2.5rem;
    text-align: center;
}

.book-load-error {
    max-width: 800px;
    margin: 4rem auto;
    padding: 1.5rem;

    background: var(--bg-card);
    border: 1px solid var(--border);
}

/* ==========================
   RESPONSIVE
========================== */

@media (max-width: 1000px) {

    .book-details-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding-top: 3rem;
    }

    .detail-image-container {
        position: static;
        max-width: 340px;
        margin: 0 auto;
    }

    .series-book-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {

    .series-book-card {
        grid-template-columns: 95px 1fr;
        gap: 1rem;
    }

    .series-cover-column img,
    .series-cover-column .btn {
        width: 95px;
    }

    .series-cover-column .btn {
        font-size: .68rem;
        padding: .65rem .55rem;
    }
}