body.archive-page {
    overflow: auto;
}

.flip-shell {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto 48px;
}

.flipbook-panel,
.thumb-panel {
    border: 1px solid var(--border);
    border-radius: 28px;
    background: rgba(17, 21, 31, 0.94);
    box-shadow: var(--shadow);
}

.flipbook-panel {
    padding: 28px;
}

.thumb-panel {
    margin-top: 20px;
    padding: 24px;
}

.flipbook-status {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: end;
    margin-bottom: 22px;
}

.flipbook-eyebrow {
    margin: 0 0 8px;
    color: var(--muted);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 0.78rem;
}

.flipbook-status h2,
.thumb-panel h3 {
    margin: 0;
}

.flipbook-status p,
.thumb-panel p {
    margin: 8px 0 0;
    color: var(--muted);
}

.flipbook-stage {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr) 72px;
    gap: 16px;
    align-items: center;
}

.flipbook-nav {
    height: 72px;
    width: 72px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    font-size: 2.2rem;
    cursor: pointer;
}

.flipbook-nav:disabled {
    opacity: 0.35;
    cursor: default;
}

.flipbook-book {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
    perspective: 1800px;
}

.page-card {
    position: relative;
    min-height: 620px;
    padding: 22px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 22px;
    background:
        linear-gradient(180deg, rgba(250, 247, 240, 0.98), rgba(233, 226, 213, 0.98));
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
    cursor: zoom-in;
    transform-origin: center;
}

.page-card img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    border-radius: 12px;
    background: white;
}

.page-card__badge {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 1;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(15, 17, 23, 0.84);
    color: #f4f0e6;
    font-size: 0.82rem;
}

.page-card--right .page-card__badge {
    left: auto;
    right: 14px;
}

.page-card.is-empty {
    cursor: default;
    opacity: 0.5;
}

.page-card.is-empty img,
.page-card.is-empty .page-card__badge {
    display: none;
}

.flipbook-book.is-flipping-next .page-card--right {
    animation: pageFlipNext 420ms ease;
}

.flipbook-book.is-flipping-prev .page-card--left {
    animation: pageFlipPrev 420ms ease;
}

.thumb-rail {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 14px;
    margin-top: 18px;
}

.thumb-spread {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    text-align: left;
    cursor: pointer;
}

.thumb-spread.is-selected {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px rgba(216, 161, 75, 0.36);
}

.thumb-spread__images {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
    margin-bottom: 10px;
}

.thumb-spread__images img,
.thumb-spread__blank {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
}

.thumb-spread__blank {
    display: grid;
    place-items: center;
    color: var(--muted);
    font-size: 0.86rem;
}

.thumb-spread__label {
    display: block;
    color: var(--muted);
    font-size: 0.86rem;
    line-height: 1.4;
}

.page-dialog {
    width: min(96vw, 1400px);
    max-width: 1400px;
    border: none;
    padding: 0;
    background: transparent;
}

.page-dialog::backdrop {
    background: rgba(0, 0, 0, 0.88);
}

.page-dialog__shell {
    position: relative;
    padding: 24px;
    border-radius: 24px;
    background: rgba(15, 17, 23, 0.98);
    box-shadow: var(--shadow);
}

.page-dialog__close {
    position: absolute;
    top: 12px;
    right: 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    padding: 10px 14px;
    cursor: pointer;
}

.page-dialog img {
    width: 100%;
    max-height: 84vh;
    object-fit: contain;
    display: block;
}

.page-dialog p {
    margin: 14px 0 0;
    text-align: center;
    color: var(--muted);
}

@keyframes pageFlipNext {
    0% { transform: rotateY(0deg) scale(1); }
    50% { transform: rotateY(-22deg) scale(0.98); }
    100% { transform: rotateY(0deg) scale(1); }
}

@keyframes pageFlipPrev {
    0% { transform: rotateY(0deg) scale(1); }
    50% { transform: rotateY(22deg) scale(0.98); }
    100% { transform: rotateY(0deg) scale(1); }
}

@media (max-width: 1024px) {
    .flipbook-stage {
        grid-template-columns: 60px minmax(0, 1fr) 60px;
    }

    .flipbook-nav {
        width: 60px;
        height: 60px;
    }

    .page-card {
        min-height: 500px;
    }
}

@media (max-width: 860px) {
    .flipbook-status {
        flex-direction: column;
        align-items: flex-start;
    }

    .flipbook-stage {
        grid-template-columns: 1fr;
    }

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

    .page-card--right {
        display: none;
    }

    .flipbook-nav {
        width: 100%;
        height: 54px;
        font-size: 1.6rem;
    }

    .flipbook-panel,
    .thumb-panel {
        padding: 18px;
    }
}