/* Library — elysiumdr.eu/library
   --------------------------------------------------------------------------
   Índice, lector (con su ficha «Sobre este libro» y el modo de pantalla
   completa) y ventana de audiolibro. Usa los tokens de base.css y el
   mismo vocabulario que Research (Playfair en los títulos, tarjetas oscuras de
   28 px, acento azul). El libro en sí no se estiliza aquí: vive en un iframe
   con su propio CSS. */

[hidden] {
    display: none !important;
}

.library-page .flag-icon {
    width: 1.2em;
    height: auto;
    vertical-align: middle;
    display: inline-block;
    border-radius: 2px;
}

.library-eyebrow {
    color: var(--color-accent);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-bottom: 0.6rem;
}

/* ── Índice ─────────────────────────────────────────────────────────────── */

.library-page-header {
    min-height: clamp(320px, 42vh, 460px);
}

.library-page-header h1 {
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(3.2rem, 9vw, 6.5rem) !important;
    font-weight: 400;
    letter-spacing: -0.055em;
    line-height: 0.92;
    margin-bottom: 1.25rem;
}

.library-page-header .hero-subtitle {
    color: var(--color-text-secondary);
    font-size: clamp(0.72rem, 1.6vw, 0.9rem);
    letter-spacing: 0.28em;
    margin: 0;
}

.library-section {
    padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(3rem, 6vw, 5rem);
}

.library-intro {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(260px, 1.2fr);
    gap: clamp(1.5rem, 6vw, 6rem);
    align-items: end;
    margin-bottom: clamp(2rem, 5vw, 3.5rem);
}

.library-intro h2 {
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 400;
    letter-spacing: -0.035em;
    margin: 0;
}

.library-intro > p {
    font-size: clamp(1rem, 1.6vw, 1.12rem);
    line-height: 1.8;
    margin: 0;
    max-width: 640px;
}

.library-notice {
    margin: 0 0 2rem;
    padding: 1rem 1.25rem;
    border: 1px solid rgba(255, 196, 87, 0.35);
    border-radius: var(--radius-sm);
    background: rgba(255, 196, 87, 0.08);
    color: #ffd894;
    font-size: 0.95rem;
}

.library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr));
    gap: clamp(1.1rem, 2.5vw, 1.8rem);
}

.library-card {
    --library-accent: #2997ff;
    --library-accent-soft: rgba(41, 151, 255, 0.22);
    position: relative;
    display: flex;
    flex-direction: column;
    min-height: 340px;
    overflow: hidden;
    isolation: isolate;
    background:
        radial-gradient(circle at 85% 0%, var(--library-accent-soft), transparent 58%),
        linear-gradient(160deg, color-mix(in srgb, var(--library-accent) 9%, rgba(14, 29, 55, 0.94)) 0%, rgba(8, 17, 36, 0.96) 50%, rgba(3, 8, 22, 0.98) 100%);
    border: 1px solid color-mix(in srgb, var(--library-accent) 22%, rgba(255, 255, 255, 0.11));
    border-top-color: color-mix(in srgb, var(--library-accent) 42%, rgba(255, 255, 255, 0.2));
    border-radius: 28px;
    box-shadow: 0 18px 55px rgba(0, 0, 0, 0.28), 0 0 28px -8px var(--library-accent-soft);
    transition: transform 0.45s cubic-bezier(0.2, 0.8, 0.2, 1), border-color 0.35s ease, box-shadow 0.45s ease;
}

/* 1. Manual de Técnicas de Expressão e Comunicação — Amarillo / Dorado académico */
.library-card:nth-child(3n + 1),
.library-card[data-book*="manual"],
.library-card[data-book*="tecnicas"] {
    --library-accent: #f0c346;
    --library-accent-soft: rgba(240, 195, 70, 0.26);
}

/* 2. Capital Humano — Azul Índigo / Zafiro organizacional */
.library-card:nth-child(3n + 2),
.library-card[data-book*="capital"] {
    --library-accent: #5e7ce2;
    --library-accent-soft: rgba(94, 124, 226, 0.26);
}

/* 3. Sociedade e Cultura Inglesas — Morado Real Británico (British Royal Purple) */
.library-card:nth-child(3n + 3),
.library-card[data-book*="sociedade"],
.library-card[data-book*="sociedad"] {
    --library-accent: #9d4edd;
    --library-accent-soft: rgba(157, 78, 221, 0.28);
}

.library-card::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: radial-gradient(circle at 85% 10%, var(--library-accent-soft) 0%, color-mix(in srgb, var(--library-accent) 12%, transparent) 40%, transparent 70%);
    pointer-events: none;
}

.library-card:hover,
.library-card:focus-within {
    transform: translateY(-6px);
    border-color: color-mix(in srgb, var(--library-accent) 65%, white 15%);
    box-shadow: 0 26px 70px rgba(0, 0, 0, 0.42), 0 0 38px var(--library-accent-soft);
}

.library-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 1.5rem 0;
}

.library-chip {
    padding: 0.34rem 0.7rem;
    color: rgba(255, 255, 255, 0.85);
    background: rgba(2, 4, 16, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-pill);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

.library-card .library-chip:not(.library-chip-translation) {
    color: color-mix(in srgb, var(--library-accent) 75%, #ffffff);
    background: color-mix(in srgb, var(--library-accent) 12%, rgba(2, 4, 16, 0.55));
    border-color: color-mix(in srgb, var(--library-accent) 32%, rgba(255, 255, 255, 0.16));
}

.library-card-langs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    min-width: 0;
}

.library-chip-translation {
    color: rgba(255, 255, 255, 0.62);
    background: transparent;
}

.library-card-size {
    flex: 0 0 auto;
    white-space: nowrap;
    color: rgba(225, 225, 229, 0.5);
    font-size: 0.78rem;
    font-variant-numeric: tabular-nums;
}

.library-card-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 2.5rem 1.5rem 1.5rem;
}

.library-card h3 {
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(1.5rem, 2.6vw, 1.95rem);
    font-weight: 400;
    line-height: 1.12;
    letter-spacing: -0.03em;
    margin-bottom: 0.9rem;
    overflow-wrap: anywhere;
}

.library-card h3 a {
    transition: color 0.25s ease;
}

.library-card h3 a:hover {
    color: color-mix(in srgb, var(--library-accent) 30%, #ffffff);
}

/* Toda la tarjeta abre el libro: el enlace del título se estira sobre ella
   (sin JavaScript ni enlaces anidados), y los botones quedan por encima
   para seguir haciendo lo suyo. */
.library-card h3 a::after {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    border-radius: inherit;
}

.library-card h3 a:focus-visible {
    outline: none;
}

.library-card:has(h3 a:focus-visible) {
    outline: 2px solid var(--library-accent);
    outline-offset: 3px;
}

.library-card-description {
    color: rgba(225, 225, 229, 0.72);
    font-size: 0.93rem;
    line-height: 1.65;
    margin-bottom: 1.2rem;
    /* La vista previa es el resumen entero del libro: se lee completa. El
       tope solo evita que una descripción muy larga estire la tarjeta. */
    display: -webkit-box;
    -webkit-line-clamp: 10;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.library-card-date {
    margin-top: auto;
    margin-bottom: 1.1rem;
    color: rgba(225, 225, 229, 0.45);
    font-size: 0.78rem;
}

.library-card-actions {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.library-btn-compact,
.library-card-actions .btn {
    padding: 0.7rem 1.25rem;
    font-size: 0.9rem;
    gap: 0.45rem;
}

.library-delete {
    position: relative;
    z-index: 1;
    align-self: flex-start;
    margin-top: 1rem;
    padding: 0;
    border: 0;
    background: none;
    color: #ff8f8f;
    font: inherit;
    font-size: 0.82rem;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

.library-delete:disabled {
    opacity: 0.5;
    cursor: progress;
}

.library-empty {
    padding: 3rem 1.5rem;
    text-align: center;
    border: 1px dashed var(--glass-border);
    border-radius: 28px;
}

/* ── Propuesta de digitalización / transcripción ────────────────────────── */

.library-proposal-section {
    padding: 0 0 clamp(3rem, 7vw, 6rem);
}

.library-proposal-card {
    border: 1px solid var(--glass-border);
    border-radius: 28px;
    background: rgba(5, 16, 37, 0.65);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: clamp(1.75rem, 4vw, 3rem);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    position: relative;
    overflow: hidden;
}

.library-proposal-card::before {
    content: "";
    position: absolute;
    top: -80px;
    right: -80px;
    width: 260px;
    height: 260px;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.15) 0%, transparent 70%);
    pointer-events: none;
    border-radius: 50%;
}

.library-proposal-header {
    margin-bottom: 2rem;
    max-width: 46rem;
}

.library-proposal-header h2 {
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(1.6rem, 3vw, 2.25rem);
    font-weight: 400;
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 0.75rem;
}

.library-proposal-intro {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.library-proposal-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

@media (max-width: 48rem) {
    .library-proposal-fields {
        grid-template-columns: minmax(0, 1fr);
    }
}

.library-proposal-dropzone {
    margin-top: 0.4rem;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.library-proposal-dropzone.is-dragover {
    border-color: var(--library-accent, #4a90e2);
    background: rgba(74, 144, 226, 0.08);
}

.library-proposal-file-chosen {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem;
    margin-top: 0.6rem;
    padding: 0.5rem 0.85rem;
    border-radius: 12px;
    background: rgba(74, 144, 226, 0.12);
    border: 1px solid rgba(74, 144, 226, 0.3);
}

.library-proposal-file-name {
    font-weight: 600;
    font-size: 0.88rem;
    color: #fff;
    overflow-wrap: anywhere;
}

.library-proposal-file-size {
    font-size: 0.78rem;
    color: var(--color-text-secondary);
}

.library-proposal-file-remove {
    margin-left: auto;
    background: transparent;
    border: none;
    color: rgba(255, 120, 120, 0.85);
    font-size: 0.78rem;
    cursor: pointer;
    padding: 0.2rem 0.5rem;
    border-radius: 6px;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.library-proposal-file-remove:hover {
    color: #ff6b6b;
    background: rgba(255, 107, 107, 0.15);
}

.library-proposal-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.library-admin-access-hint {
    font-size: 0.82rem;
}

.library-admin-access-hint .library-link-button {
    font-size: 0.82rem;
    opacity: 0.65;
    transition: opacity var(--transition-fast);
}

.library-admin-access-hint .library-link-button:hover {
    opacity: 1;
}

.library-form-status[data-tone="success"] {
    color: #4ade80;
    background: rgba(74, 222, 128, 0.1);
    border: 1px solid rgba(74, 222, 128, 0.25);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    margin-top: 1rem;
}

/* ── Administración ─────────────────────────────────────────────────────── */

.library-admin-section {
    padding: 0 0 clamp(3rem, 7vw, 6rem);
}

.library-admin {
    border: 1px solid var(--glass-border);
    border-radius: 28px;
    background: rgba(5, 16, 37, 0.55);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.library-admin summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.1rem 1.5rem;
    cursor: pointer;
    list-style: none;
    color: var(--color-text-secondary);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.library-admin summary::-webkit-details-marker {
    display: none;
}

.library-admin-summary-arrow {
    transition: transform var(--transition-fast);
}

.library-admin[open] .library-admin-summary-arrow {
    transform: rotate(180deg);
}

.library-admin-body {
    padding: 0 1.5rem 1.75rem;
}

.library-admin-head {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.75rem 1.5rem;
    margin-bottom: 1.25rem;
}

.library-admin-head h2 {
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 400;
    margin: 0;
}

.library-admin-identity {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.88rem;
    color: var(--color-text-secondary);
}

.library-admin-email {
    overflow-wrap: anywhere;
}

.library-link-button {
    padding: 0;
    border: 0;
    background: none;
    color: var(--color-accent);
    font: inherit;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

.library-admin-text {
    max-width: 640px;
}

.library-signin {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
    gap: 1rem;
    align-items: end;
    max-width: 760px;
}

.library-signin .btn,
.library-upload-actions .btn {
    padding: 0.85rem 1.8rem;
}

.library-field {
    display: grid;
    gap: 0.4rem;
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
}

.library-field input,
.library-field textarea {
    width: 100%;
    min-width: 0;
    padding: 0.8rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-sm);
    background: rgba(2, 4, 16, 0.55);
    color: var(--color-text-primary);
    font: inherit;
    font-weight: 400;
    font-size: 1rem;
}

.library-field textarea {
    resize: vertical;
    min-height: 5.5rem;
    line-height: 1.5;
}

.library-field input:focus,
.library-field textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(41, 151, 255, 0.25);
}

.library-form-status {
    grid-column: 1 / -1;
    min-height: 1.5em;
    margin: 0.75rem 0 0;
    font-size: 0.92rem;
}

.library-form-status[data-tone="error"] {
    color: #ff9c9c;
}

.library-form-status[data-tone="success"] {
    color: #7fe0c4;
}

.library-form-status a {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 0.2em;
}

.library-dropzone {
    position: relative;
    display: grid;
    justify-items: center;
    gap: 0.35rem;
    padding: 2rem 1.25rem;
    margin-bottom: 1.5rem;
    border: 1.5px dashed rgba(255, 255, 255, 0.22);
    border-radius: 22px;
    background: rgba(2, 4, 16, 0.35);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-fast), background var(--transition-fast);
}

.library-dropzone:hover,
.library-dropzone.is-dragging,
.library-dropzone:focus-within {
    border-color: var(--color-accent);
    background: rgba(41, 151, 255, 0.08);
}

.library-dropzone input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.library-dropzone-icon {
    color: var(--color-accent);
}

.library-dropzone-title {
    color: var(--color-text-primary);
    font-weight: 600;
}

.library-dropzone-hint {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.library-dropzone-file {
    margin-top: 0.4rem;
    color: #7fe0c4;
    font-size: 0.9rem;
    overflow-wrap: anywhere;
}

.library-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.25rem;
}

.library-field-wide,
.library-replace {
    grid-column: 1 / -1;
}

.library-slug-field {
    display: flex;
    align-items: stretch;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: var(--radius-sm);
    background: rgba(2, 4, 16, 0.55);
    overflow: hidden;
}

.library-slug-field:focus-within {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(41, 151, 255, 0.25);
}

.library-slug-prefix {
    display: flex;
    align-items: center;
    padding: 0 0 0 1rem;
    color: var(--color-text-muted);
    font-weight: 400;
    font-size: 0.95rem;
    white-space: nowrap;
}

.library-field .library-slug-field input {
    border: 0;
    border-radius: 0;
    background: transparent;
    padding-left: 0.15rem;
    box-shadow: none;
}

.library-replace {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    color: #ffd894;
    font-size: 0.92rem;
}

.library-replace input {
    margin-top: 0.3rem;
    accent-color: var(--color-accent);
}

.library-upload-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.library-upload-actions progress {
    flex: 1;
    min-width: 160px;
    height: 6px;
    appearance: none;
    border: 0;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

.library-upload-actions progress::-webkit-progress-bar {
    background: rgba(255, 255, 255, 0.1);
}

.library-upload-actions progress::-webkit-progress-value {
    background: var(--color-accent);
}

.library-upload-actions progress::-moz-progress-bar {
    background: var(--color-accent);
}

.library-upload .btn[disabled],
.library-signin .btn[disabled] {
    opacity: 0.6;
    cursor: progress;
}

/* ── Ventana de audiolibro ──────────────────────────────────────────────── */

.library-dialog {
    width: min(560px, calc(100vw - 32px));
    max-width: none;
    max-height: calc(100dvh - 32px);
    margin: auto;
    padding: 0;
    overflow: auto;
    overscroll-behavior: contain;
    color: var(--color-text-primary);
    background: linear-gradient(155deg, rgba(14, 29, 55, 0.98), rgba(3, 8, 22, 0.99));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.55), 0 0 40px rgba(41, 151, 255, 0.12);
}

.library-dialog[open] {
    animation: library-dialog-in 0.32s cubic-bezier(0.16, 1, 0.3, 1);
}

.library-dialog::backdrop {
    background: rgba(2, 4, 16, 0.72);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

@keyframes library-dialog-in {
    from {
        opacity: 0;
        transform: translateY(14px) scale(0.98);
    }
}

.library-dialog-inner {
    position: relative;
    padding: clamp(1.75rem, 5vw, 2.75rem);
}

.library-dialog h2 {
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(1.7rem, 5vw, 2.3rem);
    font-weight: 400;
    letter-spacing: -0.03em;
    margin: 0 2.5rem 0.5rem 0;
}

.library-dialog-book {
    color: var(--color-text-primary);
    font-weight: 600;
    font-size: 0.98rem;
    margin-bottom: 1.25rem;
}

.library-dialog p {
    line-height: 1.7;
}

.library-dialog-close {
    position: absolute;
    top: 1.1rem;
    right: 1.1rem;
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-platinum);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    transition: all var(--transition-medium);
}

.library-dialog-close:hover {
    background: var(--color-blue);
    border-color: var(--color-blue);
    transform: rotate(90deg);
}

.library-steps {
    display: grid;
    gap: 0.7rem;
    margin: 0 0 1.75rem;
    padding: 0;
    list-style: none;
    counter-reset: library-step;
}

.library-steps li {
    counter-increment: library-step;
    display: grid;
    grid-template-columns: 1.9rem 1fr;
    gap: 0.75rem;
    align-items: baseline;
    color: var(--color-text-secondary);
    line-height: 1.55;
}

.library-steps li::before {
    content: counter(library-step);
    display: grid;
    place-items: center;
    width: 1.9rem;
    height: 1.9rem;
    border: 1px solid rgba(41, 151, 255, 0.45);
    border-radius: 50%;
    color: var(--color-accent);
    font-size: 0.85rem;
    font-weight: 700;
    transform: translateY(0.15rem);
}

.library-dialog-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.library-dialog-actions .btn {
    gap: 0.5rem;
    padding: 0.95rem 1.25rem;
    text-align: center;
}

/* ── Lector ─────────────────────────────────────────────────────────────── */

/* La barra de navegación flota a 20 px en escritorio y se pega arriba a
   partir de 1024 px (components.css). El lector ocupa exactamente la
   pantalla que queda debajo; el pie aparece al seguir bajando. */
.library-reader-page {
    --library-nav-offset: calc(20px + var(--header-height) + 16px);
}

.library-reader {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    padding: var(--library-nav-offset) clamp(12px, 2.2vw, 28px) clamp(12px, 2.2vw, 28px);
}

.library-reader-bar {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    padding: 0.6rem 0.75rem 0.6rem 1.1rem;
    background: rgba(5, 16, 37, 0.78);
    border: 1px solid var(--glass-border);
    border-bottom: 0;
    border-radius: 22px 22px 0 0;
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.library-back {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    flex: 0 0 auto;
    padding: 0.45rem 0.2rem;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
}

.library-back:hover {
    color: var(--color-text-primary);
}

.library-reader-title {
    flex: 1;
    min-width: 0;
    margin: 0;
    padding-left: 0.9rem;
    border-left: 1px solid var(--glass-border);
    font-family: var(--font-body);
    font-size: 0.98rem;
    font-weight: 600;
    letter-spacing: 0;
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-shadow: none;
}

.library-audio-button,
.library-fullscreen-button {
    flex: 0 0 auto;
    gap: 0.5rem;
    padding: 0.6rem 1.15rem;
    font-size: 0.9rem;
}

.library-frame {
    flex: 1;
    display: block;
    width: 100%;
    min-height: 0;
    border: 1px solid var(--glass-border);
    border-radius: 0 0 22px 22px;
    background: var(--color-bg-secondary);
}

/* El cursor de elysium-mouse.js no ve lo que pasa dentro del iframe y se
   quedaría congelado en el borde: se esconde mientras el puntero lee. */
html.library-cursor-off .ely-cursor {
    opacity: 0 !important;
}

@media (max-width: 1024px) {
    .library-reader-page,
    .library-reader-page body {
        height: 100%;
        height: 100dvh;
        overflow: hidden;
        overscroll-behavior: none;
    }

    .library-reader-page {
        --library-nav-offset: var(--header-height);
    }

    .library-reader {
        padding: var(--library-nav-offset) 0 0;
    }

    .library-reader-bar {
        border-radius: 0;
        border-left: 0;
        border-right: 0;
        padding-left: max(1rem, env(safe-area-inset-left));
        padding-right: max(0.75rem, env(safe-area-inset-right));
    }

    .library-frame {
        border: 0;
        border-radius: 0;
    }

    /* En móvil, al estar dentro de un libro no se muestra la parte de
       «About this book» ni el footer: solo el lector. En escritorio se ven abajo. */
    .library-reader-page .library-about,
    .library-reader-page footer {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .library-intro {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .library-fields {
        grid-template-columns: 1fr;
    }

    .library-card {
        min-height: 0;
    }

    .library-card-body {
        padding-top: 1.75rem;
    }
}

@media (max-width: 560px) {
    .library-reader-title {
        display: none;
    }

    .library-reader-bar {
        justify-content: flex-end;
        gap: 0.5rem;
    }

    .library-back {
        margin-right: auto;
    }

    /* El texto se queda para el lector de pantalla, no para la vista. */
    .library-fullscreen-button .library-button-label,
    .library-lang-button .library-button-label {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip-path: inset(50%);
        white-space: nowrap;
    }

    .library-fullscreen-button,
    .library-lang-button {
        padding: 0.6rem 0.75rem;
    }

    .library-dialog-actions {
        grid-template-columns: 1fr;
    }

    .library-admin-body,
    .library-admin summary {
        padding-left: 1.1rem;
        padding-right: 1.1rem;
    }
}

/* ── Idioma del libro ───────────────────────────────────────────────────
   El original y sus traducciones guardadas, con la bandera de cada una. */

.library-lang {
    position: relative;
    flex: 0 0 auto;
}

.library-lang-button {
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
}

.library-lang-flag,
.library-lang-item img {
    width: 20px;
    height: 20px;
    object-fit: contain;
    flex: 0 0 auto;
}

.library-lang-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    z-index: 30;
    display: grid;
    gap: 2px;
    min-width: 240px;
    padding: 6px;
    background: rgba(8, 18, 40, 0.97);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.library-lang-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 0;
    border-radius: 10px;
    background: none;
    color: var(--color-text-secondary);
    font: inherit;
    font-size: 0.9rem;
    text-align: left;
    cursor: pointer;
}

.library-lang-item:hover,
.library-lang-item:focus-visible {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.library-lang-item[aria-checked="true"] {
    background: rgba(41, 151, 255, 0.18);
    color: #fff;
}

/* ── Sobre este libro ────────────────────────────────────────────────────
   Lo que el servidor escribe del libro bajo el lector: ficha, índice de
   capítulos y el resto de la biblioteca. Es también lo que leen los
   buscadores que no abren el iframe. */

.library-about {
    padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(3rem, 7vw, 5rem);
}

.library-about-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: clamp(2rem, 5vw, 4.5rem);
    align-items: start;
}

.library-about h2 {
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(2rem, 4vw, 3.1rem);
    font-weight: 400;
    letter-spacing: -0.035em;
    line-height: 1.06;
    margin: 0 0 1rem;
    overflow-wrap: anywhere;
}

.library-about-author {
    color: var(--color-text-primary);
    font-weight: 600;
    margin: 0 0 0.75rem;
}

.library-about-description {
    color: var(--color-text-secondary);
    font-size: 1.05rem;
    line-height: 1.75;
    max-width: 60ch;
    margin: 0 0 1.75rem;
}

.library-facts {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    margin: 0 0 1.75rem;
    overflow: hidden;
    background: var(--glass-border);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
}

.library-facts > div {
    padding: 0.9rem 1.05rem;
    background: rgba(5, 16, 37, 0.82);
}

.library-facts dt {
    margin-bottom: 0.3rem;
    color: rgba(225, 225, 229, 0.5);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.library-facts dd {
    margin: 0;
    color: var(--color-text-primary);
    font-size: 0.93rem;
    line-height: 1.45;
}

.library-about-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
}

.library-about-actions .btn {
    gap: 0.5rem;
    padding: 0.85rem 1.35rem;
    font-size: 0.93rem;
}

.library-toc {
    padding: clamp(1.4rem, 3vw, 2rem) clamp(1.2rem, 3vw, 2rem);
    background: linear-gradient(155deg, rgba(14, 29, 55, 0.88), rgba(3, 8, 22, 0.94));
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 28px;
    box-shadow: 0 18px 55px rgba(0, 0, 0, 0.25);
}

.library-toc h3,
.library-more h3 {
    margin: 0 0 1rem;
    color: var(--color-accent);
    font-family: var(--font-body);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.library-toc-list {
    max-height: min(68vh, 620px);
    margin: 0;
    padding: 0 0.4rem 0 0;
    overflow: auto;
    overscroll-behavior: contain;
    list-style: none;
    scrollbar-width: thin;
    scrollbar-color: rgba(225, 225, 229, 0.25) transparent;
}

.library-toc-list > li {
    padding: 0.8rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.library-toc-list > li:first-child {
    padding-top: 0;
    border-top: 0;
}

.library-toc-list > li > a,
.library-toc-list > li > span {
    display: block;
    color: var(--color-text-primary);
    font-family: "Playfair Display", Georgia, serif;
    font-size: 1.1rem;
    line-height: 1.3;
}

.library-toc-list ol {
    display: grid;
    gap: 0.3rem;
    margin: 0.5rem 0 0;
    padding: 0 0 0 0.9rem;
    border-left: 1px solid rgba(41, 151, 255, 0.28);
    list-style: none;
}

.library-toc-list ol a,
.library-toc-list ol span {
    color: var(--color-text-secondary);
    font-size: 0.88rem;
    line-height: 1.45;
}

.library-toc-list a {
    transition: color 0.2s ease;
}

.library-toc-list a:hover,
.library-toc-list a:focus-visible {
    color: #fff;
}

.library-toc-list > li > a:hover {
    color: var(--color-accent);
}

.library-more {
    margin-top: clamp(2.5rem, 6vw, 4rem);
}

.library-more-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr));
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.library-more-list a {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    height: 100%;
    padding: 1.25rem 1.35rem;
    background: rgba(5, 16, 37, 0.55);
    border: 1px solid var(--glass-border);
    border-radius: 22px;
    transition: border-color 0.3s ease, transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.library-more-list a:hover,
.library-more-list a:focus-visible {
    border-color: rgba(41, 151, 255, 0.55);
    transform: translateY(-3px);
}

.library-more-title {
    color: var(--color-text-primary);
    font-family: "Playfair Display", Georgia, serif;
    font-size: 1.2rem;
    line-height: 1.2;
}

.library-more-text {
    display: -webkit-box;
    overflow: hidden;
    color: rgba(225, 225, 229, 0.62);
    font-size: 0.85rem;
    line-height: 1.55;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

@media (max-width: 900px) {
    .library-about-grid {
        grid-template-columns: 1fr;
    }

    .library-toc-list {
        max-height: none;
        overflow: visible;
    }
}

@media (max-width: 560px) {
    .library-facts {
        grid-template-columns: 1fr;
    }
}

/* ── Pantalla completa ──────────────────────────────────────────────────
   `JS/library.js` pone `library-immersive` en <html>: el libro ocupa toda
   la pantalla y lo demás se aparta. Solo cambia el CSS del iframe, nunca su
   sitio en el DOM, así que el libro no se recarga y conserva la posición. */

html.library-immersive,
html.library-immersive body {
    overflow: hidden;
    overscroll-behavior: none;
}

html.library-immersive {
    background: #020410;
}

html.library-immersive .navbar,
html.library-immersive .library-reader-bar,
html.library-immersive .library-about,
html.library-immersive footer {
    display: none !important;
}

html.library-immersive .ely-cursor {
    opacity: 0 !important;
}

/* Un iframe es un elemento reemplazado: con `inset` y tamaño automático se
   quedaría en 300 × 150. Se le da la medida de la pantalla menos las zonas
   seguras (la muesca, la barra de inicio). No hay nada de Elysium encima:
   el botón de salir lo pone el propio libro junto a su botón de tema (ver
   `BOOK_HELPER` en `worker/library.js`). */
html.library-immersive .library-frame {
    position: fixed;
    top: env(safe-area-inset-top, 0px);
    left: env(safe-area-inset-left, 0px);
    z-index: 2147483000;
    width: calc(100vw - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px));
    height: calc(100vh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
    height: calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
    border: 0;
    border-radius: 0;
}

@media (prefers-reduced-motion: reduce) {
    .library-card,
    .library-dialog[open] {
        transition: none;
        animation: none;
    }

    .library-more-list a {
        transition: none;
        transform: none !important;
    }
}