/* ═══════════════════════════════════════════
   CARRUSEL DE LIBROS — v1.0.0
   ═══════════════════════════════════════════ */

:root {
    --cl-rojo:        #bd1714;
    --cl-white:       #ffffff;
    --cl-texto:       #1a1a1a;
    --cl-texto-suave: #666666;
    --cl-borde:       #e5e5e5;
    --cl-radio:       8px;
    --cl-transicion:  0.35s ease;
}

/* ─── Contenedor ─── */
.cl-carrusel {
    width: 100%;
    margin: 40px 0;
}

/* ─── Grid ─── */
.cl-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
    position: relative;
    min-height: 180px;
}

/* Spinner de carga */
.cl-grid--cargando {
    opacity: 0.35;
    pointer-events: none;
}
.cl-grid--cargando::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 3px solid var(--cl-borde);
    border-top-color: var(--cl-rojo);
    border-radius: 50%;
    animation: cl-spin 0.75s linear infinite;
}
@keyframes cl-spin { to { transform: rotate(360deg); } }

/* ─── Item ─── */
.cl-item {
    border-radius: var(--cl-radio);
    overflow: hidden;
    background: #fff;
    box-shadow: 0 1px 5px rgba(0,0,0,0.08);
    transition: box-shadow var(--cl-transicion), transform var(--cl-transicion);
}
.cl-item:hover {
    box-shadow: 0 2px 10px rgba(0,0,0,0.15);
    transform: translateY(-4px);
}
.cl-item__link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
}

/* ─── Imagen + overlay ─── */
.cl-item__imagen-wrap {
    position: relative;
    overflow: hidden;
    aspect-ratio: 2 / 3;
    background: #f0f0f0;
}
.cl-item__imagen {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--cl-transicion);
}
.cl-item:hover .cl-item__imagen {
    transform: scale(1.06);
}
.cl-item__overlay {
    position: absolute;
    inset: 0;
    background: rgba(189, 23, 20, 0.82);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--cl-transicion);
}
.cl-item:hover .cl-item__overlay { opacity: 1; }

.cl-item__leer-mas {
    color: #fff;
    font-size: 13px;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    /*border: 2px solid rgba(255,255,255,0.75);*/
    padding: 10px 22px;
    border-radius: 4px;
    /*transition: background var(--cl-transicion), border-color var(--cl-transicion);*/
}
/*.cl-item:hover .cl-item__leer-mas {
    background: rgba(255,255,255,0.15);
    border-color: #fff;
}*/

/* ─── Info ─── */
.cl-item__info {
    padding: 14px 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    flex: 1;
}
.cl-item__titulo {
    font-size: 14px;
    font-weight: 600;
    color: var(--cl-texto);
    margin: 0 0 4px;
    line-height: 1.3;
    font-family: 'Poppins', sans-serif;
}
.cl-item__fecha {
    font-size: 11px;
    font-weight: 600;
    color: var(--cl-rojo);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin: 0;
    font-family: 'Poppins', sans-serif;
}
.cl-item__autor {
    font-size: 12px;
    color: var(--cl-texto-suave);
    margin: 0;
    font-family: 'Poppins', sans-serif;
}
.cl-item__autor span {
    font-weight: 600;
    color: var(--cl-texto);
}

/* ─── Paginación ─── */
.cl-paginacion {
    display: flex;
    justify-content: center;
    margin-top: 8px;
}
.cl-paginacion__lista {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.cl-paginacion__btn,
.cl-paginacion__num {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    border: 1px solid var(--cl-borde);
    border-radius: 4px;
    background: #fff;
    color: var(--cl-texto);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.cl-paginacion__btn:hover:not(:disabled),
.cl-paginacion__num:hover {
    border-color: var(--cl-rojo);
    color: var(--cl-white);
}
.cl-paginacion__num--activa {
    background: var(--cl-texto);
    border-color: var(--cl-texto);
    color: #fff;
    font-weight: 700;
    pointer-events: none;
}
.cl-paginacion__btn--disabled,
.cl-paginacion__btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}
.cl-paginacion__prev,
.cl-paginacion__next {
    font-size: 18px;
    border-color: transparent;
    background: transparent;
    color: var(--cl-texto-suave);
}
.cl-paginacion__prev:hover:not(:disabled),
.cl-paginacion__next:hover:not(:disabled) {
    background: transparent;
    border-color: transparent;
    color: var(--cl-rojo);
}

/* ─── Sin resultados ─── */
.cl-sin-resultados {
    text-align: center;
    color: var(--cl-texto-suave);
    padding: 40px;
}

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 1024px) {
    .cl-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 600px) {
    .cl-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        max-width: 320px;
        margin-left: auto;
        margin-right: auto;
    }
    .cl-paginacion__btn,
    .cl-paginacion__num { min-width: 34px; height: 34px; font-size: 13px; }
}