.bdw-flipbook {
    --bdw-ink: #102142;
    --bdw-line: rgba(16, 33, 66, .13);
    --bdw-muted: #66728c;
    --bdw-shadow: 0 18px 42px rgba(8, 27, 71, .12);
    position: relative;
    width: 100%;
    max-width: 1440px;
    margin: -10px auto 0;
    padding: 0;
    color: var(--bdw-ink);
    background: transparent;
    border: 0;
    box-shadow: none;
    font-family: inherit;
}

.bdw-flipbook *,
.bdw-flipbook *::before,
.bdw-flipbook *::after { box-sizing: border-box; }

.bdw-flipbook__viewport {
    position: relative;
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr) 48px;
    align-items: start;
    width: 100%;
    height: clamp(560px, calc(100vh - 148px), 920px);
    min-height: 560px;
    padding: 0 0 62px;
    overflow: hidden;
    background: transparent;
    border: 0;
    border-radius: 0;
    outline: none;
}

.bdw-flipbook.is-zoomed .bdw-flipbook__viewport { overflow: auto; }

.bdw-flipbook__book {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
    padding: 0 8px;
    perspective: 1800px;
    transform-origin: center top;
}

.bdw-flipbook__page {
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    min-width: 0;
    max-width: 100%;
    max-height: 100%;
    overflow: hidden;
    background: #fff;
    border: 0;
    box-shadow: var(--bdw-shadow);
    will-change: transform, opacity;
}

.bdw-flipbook__page--left { border-radius: 5px 0 0 5px; }
.bdw-flipbook__page--right { border-radius: 0 5px 5px 0; }
.bdw-flipbook.is-cover .bdw-flipbook__page--right,
.bdw-flipbook.is-final .bdw-flipbook__page--left,
.bdw-flipbook.is-single .bdw-flipbook__page--right { border-radius: 5px; }

.bdw-flipbook__page--left::after,
.bdw-flipbook__page--right::before {
    content: '';
    position: absolute;
    z-index: 2;
    top: 0;
    bottom: 0;
    width: 12px;
    pointer-events: none;
}
.bdw-flipbook__page--left::after { right: 0; background: linear-gradient(90deg, transparent, rgba(8,27,71,.08)); }
.bdw-flipbook__page--right::before { left: 0; background: linear-gradient(90deg, rgba(8,27,71,.08), transparent); }
.bdw-flipbook.is-cover .bdw-flipbook__page--right::before,
.bdw-flipbook.is-final .bdw-flipbook__page--left::after,
.bdw-flipbook.is-single .bdw-flipbook__page--right::before { display: none; }

.bdw-flipbook__page canvas { display: block; max-width: none; height: auto; background: #fff; }
.bdw-flipbook.is-cover .bdw-flipbook__page--right { cursor: pointer; }

.bdw-flipbook__nav {
    position: sticky;
    top: 44%;
    z-index: 10;
    width: 38px;
    height: 52px;
    margin: 0 5px;
    padding: 0;
    border: 0;
    border-radius: 8px;
    background: rgba(255,255,255,.92);
    color: var(--bdw-ink);
    font: inherit;
    font-size: 36px;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(8,27,71,.12);
    transition: opacity .18s ease, transform .18s ease;
}
.bdw-flipbook__nav:hover:not(:disabled) { transform: translateY(-1px); }
.bdw-flipbook__nav:disabled { opacity: .18; cursor: default; box-shadow: none; }

.bdw-flipbook__toolbar {
    position: absolute;
    left: 50%;
    bottom: 8px;
    z-index: 20;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transform: translateX(-50%);
    padding: 5px 7px;
    border: 1px solid var(--bdw-line);
    border-radius: 10px;
    background: rgba(255,255,255,.96);
    box-shadow: 0 5px 18px rgba(8,27,71,.10);
    backdrop-filter: blur(8px);
    white-space: nowrap;
}

.bdw-flipbook__toolbar button,
.bdw-flipbook__download {
    appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px;
    height: 32px;
    padding: 0 8px;
    border: 0;
    border-radius: 7px;
    background: transparent;
    color: var(--bdw-ink);
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}
.bdw-flipbook__toolbar button:hover,
.bdw-flipbook__download:hover { background: rgba(16,33,66,.06); }
.bdw-flipbook__counter,
.bdw-flipbook__zoom-label {
    color: var(--bdw-muted);
    font-size: 12px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}
.bdw-flipbook__counter { min-width: 42px; text-align: center; }
.bdw-flipbook__zoom-label { min-width: 45px; text-align: center; }

.bdw-flipbook__loading {
    position: absolute;
    left: 50%;
    top: 42%;
    z-index: 30;
    transform: translate(-50%, -50%);
    color: var(--bdw-muted);
    font-size: 13px;
    font-weight: 700;
}
.bdw-flipbook.is-ready .bdw-flipbook__loading { display: none; }
.bdw-flipbook__fallback-link { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); }

.bdw-flipbook:fullscreen {
    width: 100vw;
    max-width: none;
    height: 100vh;
    margin: 0;
    padding: 0;
    background: #fff;
}
.bdw-flipbook:fullscreen .bdw-flipbook__viewport { height: 100vh; min-height: 0; padding-top: 12px; }



@media (min-width: 761px) {
    .bdw-flipbook {
        margin-top: -18px;
    }

    .bdw-flipbook__viewport {
        min-height: 600px;
        padding-top: 0;
    }

    .bdw-flipbook__book {
        padding-top: 0;
    }
}
@media (max-width: 760px) {
    .bdw-flipbook {
        margin: 0 auto;
    }

    .bdw-flipbook__viewport {
        grid-template-columns: 36px minmax(0,1fr) 36px;
        height: clamp(500px, calc(100vh - 150px), 780px);
        min-height: 500px;
        padding-top: 4px;
    }
    .bdw-flipbook__book { padding: 0 2px; }
    .bdw-flipbook__nav { width: 32px; height: 46px; margin: 0 2px; font-size: 30px; }
    .bdw-flipbook__toolbar { bottom: 5px; gap: 2px; padding: 4px 5px; }
    .bdw-flipbook__toolbar button,
    .bdw-flipbook__download { min-width: 31px; height: 30px; padding: 0 6px; font-size: 12px; }
    .bdw-flipbook__toolbar button[data-zoom-reset] { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    .bdw-flipbook *, .bdw-flipbook *::before, .bdw-flipbook *::after {
        animation-duration: .01ms !important;
        transition-duration: .01ms !important;
    }
}


/* v0.1.7 — transición deliberadamente simple y estable. */
.bdw-flipbook__transition {
    position: absolute;
    inset: 0;
    z-index: 8;
    pointer-events: none;
    opacity: 0;
    background: rgba(255,255,255,.46);
    transition: opacity .16s ease;
}
.bdw-flipbook.is-transitioning .bdw-flipbook__transition { opacity: 1; }
.bdw-flipbook.is-transitioning .bdw-flipbook__nav,
.bdw-flipbook.is-transitioning .bdw-flipbook__toolbar { pointer-events: none; }
.bdw-flipbook.is-cover .bdw-flipbook__book,
.bdw-flipbook.is-final .bdw-flipbook__book { justify-content: center; }
.bdw-flipbook.is-cover .bdw-flipbook__page--right,
.bdw-flipbook.is-final .bdw-flipbook__page--left { margin-inline: auto; }