.pdf-slider-widget {
    position: relative;
    width: 100%;
}

/* Griglia base (desktop) */
.pdf-slider-grid {
    display: grid;
    grid-template-columns: repeat(var(--pdf-slider-cols-desktop, 3), 1fr);
    gap: 0.75rem;
}

/* Mobile: cambiamo il numero di colonne */
@media (max-width: 768px) {
    .pdf-slider-grid {
        grid-template-columns: repeat(var(--pdf-slider-cols-mobile, 1), 1fr);
    }
}

/* Effetto slider (orizzontale) */
.pdf-slider-grid.pdf-slider-grid--slider {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 0.75rem;
}

.pdf-slider-grid.pdf-slider-grid--slider .pdf-slider-page {
    flex: 0 0 calc(100% / var(--pdf-slider-cols-desktop, 3));
    scroll-snap-align: start;
}

@media (max-width: 768px) {
    .pdf-slider-grid.pdf-slider-grid--slider .pdf-slider-page {
        flex: 0 0 calc(100% / var(--pdf-slider-cols-mobile, 1));
    }
}

/* Singola pagina */
.pdf-slider-page {
    cursor: pointer;
}

.pdf-slider-page-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.pdf-slider-page-inner {
    position: relative;
    padding-top: 141.4%; /* proporzioni tipiche A4 (1:1.414) */
    overflow: hidden;
    background: #f5f5f5;
    border: 1px solid #ddd;
    box-sizing: border-box;
}

.pdf-slider-page-inner canvas {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 95%;
    max-height: 95%;
    width: auto;
    height: auto;
    display: block;
}

/* Vista pagina singola (pagina WP dedicata) */
.pdf-slider-single-page-wrapper {
    max-width: 100%;
    margin: 0 auto;
    padding: 1rem;
    box-sizing: border-box;
}

.pdf-slider-single-page {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.pdf-slider-single-page-canvas {
    width: 100%;
    height: auto;
    display: block;
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.pdf-slider-single-nav {
    padding: 0.6rem;
    border-radius: 50%;
    border: 1px solid #7a3126;
    background: rgba(181, 83, 63, 0.9); /* mattone semi-trasparente */
    color: #fff;
    cursor: pointer;
    font-size: 2rem;
    line-height: 1;
    width: 4rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pdf-slider-single-prev,
.pdf-slider-single-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.pdf-slider-single-prev {
    left: -1.2rem; /* semi-sovrapposto al bordo sinistro */
}

.pdf-slider-single-next {
    right: -1.2rem; /* semi-sovrapposto al bordo destro */
}

.pdf-slider-single-nav:hover {
    background: rgba(146, 63, 48, 0.95);
    border-color: #923f30;
}

.pdf-slider-single-controls {
    margin-top: 1rem;
    display: flex;
    justify-content: flex-end;
}

.pdf-slider-single-back {
    border-radius: 2px;
    width: auto;
    height: auto;
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
}

.pdf-slider-credit {
    margin-top: 0.5rem;
    font-size: 0.75rem;
    color: #777;
    text-align: right;
}

.pdf-slider-credit a {
    color: inherit;
    text-decoration: underline;
}