/* ============================================
   PM EDIZIONI — PAGINA SINGOLA LIBRO
   
   Stili specifici per il template prodotto.
   Scoped sotto .pm-single-libro (body class)
   per evitare conflitti.
   
   Caricato SOLO su is_singular('product')
   ============================================ */


/* ============================================
   FADE-UP ANIMATION — Hero elements
   ============================================ */
@keyframes fade-up {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}


/* ============================================
   PRODUCT HERO — Split: copertina + dettagli
   ============================================ */
.pm-single-libro .product-hero {
    max-width: 1300px;
    margin: 0 auto;
    padding: 2.5rem 3rem 4rem;
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 4rem;
    align-items: start;
}


/* === Colonna sinistra: copertina === */
.pm-single-libro .product-cover-col {
    position: sticky;
    top: 6rem;
}

/* Copertina con immagine reale — sfondo accent + padding come nel template */
.pm-single-libro .product-cover {
    background: var(--bg-accent);
    border-radius: 6px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}
.pm-single-libro .product-cover img {
    width: 85%;
    height: auto;
    display: block;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    border-radius: 2px;
}

/* Copertina placeholder (senza immagine) — testo generato */
.pm-single-libro .product-cover--placeholder {
    background: var(--bg-accent);
    border-radius: 6px;
    aspect-ratio: 3/4;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.pm-single-libro .product-cover-inner {
    width: 72%;
    height: 80%;
    border: 1px solid var(--border-medium);
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2.5rem 2rem;
    gap: 1rem;
    position: relative;
}
/* Fascetta mattone in alto sulla copertina placeholder */
.pm-single-libro .product-cover-inner::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brick-600), var(--brick-400));
}
.pm-single-libro .product-cover-collana {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    color: var(--brick-600);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}
.pm-single-libro .product-cover-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
}
.pm-single-libro .product-cover-subtitle {
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.4;
}
.pm-single-libro .product-cover-author {
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-top: 0.5rem;
}
.pm-single-libro .product-cover-logo {
    position: absolute;
    bottom: 1.5rem;
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--text-muted);
}
.pm-single-libro .product-cover-logo span {
    color: var(--brick-600);
    font-style: italic;
}


/* === Colonna destra: dettagli === */
.pm-single-libro .product-details {
    padding-top: 0.5rem;
}

.pm-single-libro .product-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--brick-600);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
    opacity: 0;
    animation: fade-up 0.6s var(--transition-smooth) 0.1s forwards;
}

.pm-single-libro .product-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 0.4rem;
    opacity: 0;
    animation: fade-up 0.6s var(--transition-smooth) 0.2s forwards;
}

.pm-single-libro .product-subtitle {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.5;
    opacity: 0;
    animation: fade-up 0.6s var(--transition-smooth) 0.3s forwards;
}

.pm-single-libro .product-author-line {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    opacity: 0;
    animation: fade-up 0.6s var(--transition-smooth) 0.35s forwards;
}
.pm-single-libro .product-author-line a {
    color: var(--text-primary);
    font-weight: 700;
}
.pm-single-libro .product-author-line a:hover {
    color: var(--brick-600);
}


/* Divider sottile */
.pm-single-libro .detail-divider {
    width: 100%;
    height: 1px;
    background: var(--border-subtle);
    margin: 1.5rem 0;
}


/* ============================================
   METADATA GRID — Scheda tecnica compatta
   ============================================ */
.pm-single-libro .meta-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fade-up 0.6s var(--transition-smooth) 0.45s forwards;
}
.pm-single-libro .meta-item {
    padding: 1.1rem 1.2rem;
    background: var(--bg-card);
    border-right: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}
.pm-single-libro .meta-item:nth-child(3n) { border-right: none; }
.pm-single-libro .meta-item:nth-last-child(-n+3) { border-bottom: none; }

.pm-single-libro .meta-label {
    font-family: var(--font-mono);
    font-size: 0.58rem;
    color: var(--text-muted);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
}
.pm-single-libro .meta-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}
.pm-single-libro .meta-value.price {
    color: var(--brick-800);
    font-size: 1.1rem;
    font-weight: 700;
}
.pm-single-libro .meta-value.isbn {
    font-family: var(--font-mono);
    font-size: 0.82rem;
}


/* ============================================
   CTA ACQUISTO
   ============================================ */
.pm-single-libro .purchase-row {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
    opacity: 0;
    animation: fade-up 0.6s var(--transition-smooth) 0.55s forwards;
}

.pm-single-libro .format-tags {
    display: flex;
    gap: 0.5rem;
    margin-left: 0.5rem;
}
.pm-single-libro .format-tag {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 0.35rem 0.7rem;
    background: var(--brick-50);
    color: var(--brick-700);
    border-radius: 3px;
    border: 1px solid var(--brick-100);
}


/* ============================================
   ABSTRACT / DESCRIZIONE
   ============================================ */
.pm-single-libro .product-abstract {
    margin-bottom: 2.5rem;
}
.pm-single-libro .product-abstract h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}
.pm-single-libro .product-abstract p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.85;
    margin-bottom: 1rem;
}


/* ============================================
   INDICE (TOC)
   ============================================ */
.pm-single-libro .toc-section {
    margin-bottom: 2.5rem;
}
.pm-single-libro .toc-section h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}
.pm-single-libro .toc-list {
    list-style: none;
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    overflow: hidden;
    padding: 0;
    margin: 0;
}
.pm-single-libro .toc-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.9rem 1.3rem;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: all 0.3s var(--transition-smooth);
    cursor: default;
}
.pm-single-libro .toc-item:last-child { border-bottom: none; }
.pm-single-libro .toc-item:hover {
    background: var(--brick-50);
    color: var(--text-primary);
    padding-left: 1.6rem;
}
.pm-single-libro .toc-item-num {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--brick-600);
    min-width: 2.5rem;
    font-weight: 500;
}
.pm-single-libro .toc-item-title { flex: 1; }
.pm-single-libro .toc-item-page {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
}


/* ============================================
   SEZIONE AUTORE — Bio card
   ============================================ */
.pm-single-libro .author-section {
    background: #f3f0ea;  /* bg-secondary hardcoded — var(--global-palette6) non risolve sempre */
    padding: 5rem 3rem;
}
.pm-single-libro .author-inner {
    max-width: 1300px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2.5rem;
    align-items: start;
}

/* Avatar con iniziali */
.pm-single-libro .author-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--bg-accent);
    border: 3px solid var(--bg-card);
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--brick-700);
    flex-shrink: 0;
}

/* Avatar con immagine in evidenza */
.pm-single-libro .author-avatar--img {
    overflow: hidden;
    padding: 0;
}
.pm-single-libro .author-avatar--img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.pm-single-libro .author-label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--brick-600);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
}
.pm-single-libro .author-name {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}
.pm-single-libro .author-affiliation {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    font-style: italic;
}
.pm-single-libro .author-bio {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 650px;
}
.pm-single-libro .author-links {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.2rem;
}
.pm-single-libro .author-link {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--brick-600);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding-bottom: 1px;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s;
}
.pm-single-libro .author-link:hover {
    border-bottom-color: var(--brick-600);
    color: var(--brick-600);
}


/* ============================================
   DETTAGLI BIBLIOGRAFICI
   ============================================ */
.pm-single-libro .biblio-section {
    max-width: 1300px;
    margin: 0 auto;
    padding: 4rem 3rem;
}
.pm-single-libro .biblio-section h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}
.pm-single-libro .biblio-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.8rem 3rem;
}
.pm-single-libro .biblio-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 0.6rem 0;
    border-bottom: 1px solid var(--border-subtle);
}
.pm-single-libro .biblio-key {
    font-size: 0.82rem;
    color: var(--text-muted);
    min-width: 120px;
}
.pm-single-libro .biblio-val {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-primary);
    text-align: right;
}


/* ============================================
   LIBRI CORRELATI
   ============================================ */
.pm-single-libro .related-section {
    padding: 5rem 3rem;
    max-width: 1300px;
    margin: 0 auto;
}
.pm-single-libro .related-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 2.5rem;
}
.pm-single-libro .related-header h3 {
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 2.5vw, 1.8rem);
    font-weight: 700;
}
.pm-single-libro .related-header h3 em {
    color: var(--brick-700);
    font-style: italic;
}
.pm-single-libro .related-link {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--brick-600);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.pm-single-libro .related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

/* Card libro correlato */
.pm-single-libro .related-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.5s var(--transition-smooth);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}
.pm-single-libro .related-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--brick-600), var(--brick-400));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s var(--transition-smooth);
}
.pm-single-libro .related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
}
.pm-single-libro .related-card:hover::before { transform: scaleX(1); }

.pm-single-libro .related-cover {
    width: 100%;
    aspect-ratio: 3/4;
    background: var(--bg-accent);
    border-radius: 4px;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 1rem;
}
.pm-single-libro .related-cover img {
    max-width: 85%;
    max-height: 95%;
    object-fit: contain;
    border-radius: 2px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.12);
}
/* Placeholder per correlati senza immagine */
.pm-single-libro .related-cover-inner {
    width: 70%;
    height: 82%;
    border: 1px solid var(--border-medium);
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 1rem;
    gap: 0.4rem;
    transition: border-color 0.4s;
}
.pm-single-libro .related-card:hover .related-cover-inner {
    border-color: var(--brick-600);
}
.pm-single-libro .related-cover-title {
    font-family: var(--font-display);
    font-size: 0.82rem;
    font-weight: 700;
    line-height: 1.3;
}
.pm-single-libro .related-cover-author {
    font-size: 0.62rem;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.pm-single-libro .related-category {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    color: var(--brick-600);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
}
.pm-single-libro .related-title {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    line-height: 1.25;
}
.pm-single-libro .related-author {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 0.6rem;
}
.pm-single-libro .related-price {
    font-weight: 700;
    color: var(--brick-800);
    font-size: 0.9rem;
}


/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .pm-single-libro .product-hero {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .pm-single-libro .product-cover-col {
        position: static;
        max-width: 450px;
        margin: 0 auto;
    }
    .pm-single-libro .author-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .pm-single-libro .author-avatar { margin: 0 auto; }
    .pm-single-libro .author-bio { max-width: 100%; }
    .pm-single-libro .author-links { justify-content: center; }
    .pm-single-libro .biblio-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .pm-single-libro .product-hero { padding: 2rem 1.5rem 3rem; }
    .pm-single-libro .meta-grid { grid-template-columns: 1fr 1fr; }
    .pm-single-libro .meta-item:nth-child(2n) { border-right: none; }
    .pm-single-libro .meta-item:nth-child(3n) { border-right: 1px solid var(--border-subtle); }
    .pm-single-libro .meta-item:nth-last-child(-n+2) { border-bottom: none; }
    .pm-single-libro .purchase-row { flex-wrap: wrap; }
    .pm-single-libro .format-tags { margin-left: 0; margin-top: 0.5rem; }
    .pm-single-libro .author-section { padding: 3rem 1.5rem; }
    .pm-single-libro .biblio-section { padding: 3rem 1.5rem; }
    .pm-single-libro .related-section { padding: 3rem 1.5rem; }
    .pm-single-libro .related-grid { grid-template-columns: 1fr; }
}


/* ============================================
   OVERRIDE KADENCE — Background crema
   Kadence mette background bianco sul content area.
   Lo forziamo al nostro crema su tutta la pagina libro.
   ============================================ */
.pm-single-libro .site,
.pm-single-libro .content-area,
.pm-single-libro .entry-content-wrap,
.pm-single-libro .entry.content-bg,
.pm-single-libro .content-bg {
    background: var(--bg-primary) !important;
}
/* Rimuovi padding/margin che Kadence aggiunge al contenuto prodotto */
.pm-single-libro .entry-content-wrap {
    padding: 0 !important;
    margin: 0 !important;
    max-width: 100% !important;
}
.pm-single-libro .woocommerce-product-gallery,
.pm-single-libro .summary.entry-summary {
    display: none !important; /* Nascondi il layout default di WooCommerce, usiamo il nostro */
}


/* ============================================
   WOOCOMMERCE ADD-TO-CART — Stile custom
   Il form add-to-cart di WooCommerce genera:
   <form class="cart">
     <input type="number" class="qty">
     <button class="single_add_to_cart_button">
   </form>
   Lo stiliamo per matchare il design.
   ============================================ */
.pm-single-libro .purchase-row .cart {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin: 0;
    padding: 0;
}

/* Input quantità */
.pm-single-libro .purchase-row .cart .qty {
    width: 50px;
    padding: 0.7rem 0.4rem;
    border: 1.5px solid var(--border-medium);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    text-align: center;
    background: var(--bg-card);
    color: var(--text-primary);
}
.pm-single-libro .purchase-row .cart .qty:focus {
    outline: none;
    border-color: var(--brick-600);
}

/* Bottone "Aggiungi al carrello" — stile primario mattone */
.pm-single-libro .purchase-row .cart .single_add_to_cart_button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.95rem 2rem;
    background: var(--brick-800);
    color: #fff;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.82rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border: 1.5px solid var(--brick-800);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.4s var(--transition-smooth);
    line-height: 1;
}
.pm-single-libro .purchase-row .cart .single_add_to_cart_button:hover {
    background: var(--brick-700);
    border-color: var(--brick-700);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(107, 37, 24, 0.25);
}

/* Messaggio WooCommerce "aggiunto al carrello" */
.pm-single-libro .woocommerce-message {
    border-top-color: var(--brick-600);
}