/* IL-LIBRO.CSS - Stile pagina il libro (aggiornato con variabili Bootstrap) */

/* Hero Libro */
.hero-libro {
    background: linear-gradient(135deg, #1a1a1a 0%, var(--bs-dark) 100%);
    padding: 6rem 2rem 5rem;
}

.hero-libro .col-lg-5 {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-libro .col-lg-5 picture,
.hero-libro .col-lg-5 img {
    max-width: 400px;
    width: 100%;
    height: auto;
}

.copertina-main,
.copertina-main img {
    max-width: 400px;
    width: 100%;
    height: auto;
    box-shadow: 0 20px 60px color-mix(in srgb, var(--bs-primary) 30%, transparent);
    border-radius: 8px;
    display: block;
    margin: 0 auto;
}

.libro-info h1 {
    font-size: 4rem;
    font-weight: 700;
    color: var(--bs-primary);
    margin-bottom: 0.5rem;
    letter-spacing: 3px;
}

.libro-info .sottotitolo {
    font-size: 1.5rem;
    color: var(--bs-secondary);
    font-style: italic;
    margin-bottom: 0.5rem;
    font-weight: 400;
}

.libro-info .manuale {
    font-size: 1.3rem;
    color: var(--bs-warning);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.libro-info .autore {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.libro-info .autore .by {
    color: var(--bs-gray-600);
    font-style: italic;
}

.libro-info .autore .nome-autore {
    color: var(--bs-primary);
    font-weight: 700;
    letter-spacing: 2px;
}

.libro-info .pubblicazione {
    background: color-mix(in srgb, var(--bs-primary) 15%, transparent);
    border-left: 4px solid var(--bs-primary);
    padding: 1rem 1.5rem;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    color: var(--bs-secondary);
}

.libro-info .pubblicazione i {
    margin-right: 0.5rem;
}

.libro-info .descrizione-breve {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--bs-white);
    margin-bottom: 2rem;
}

.libro-info .descrizione-breve strong {
    color: var(--bs-warning);
}

.libro-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Cosa Troverai */
.cosa-troverai {
    padding: 5rem 2rem;
    background: var(--bs-dark);
}

.cosa-troverai h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--bs-primary);
    margin-bottom: 3rem;
}

.tema-card {
    background: color-mix(in srgb, var(--bs-primary) 5%, transparent);
    border: 1px solid color-mix(in srgb, var(--bs-primary) 20%, transparent);
    border-radius: 12px;
    padding: 2rem;
    height: 100%;
    transition: all 0.3s ease;
}

.tema-card:hover {
    background: color-mix(in srgb, var(--bs-primary) 10%, transparent);
    border-color: var(--bs-primary);
    transform: translateY(-5px);
}

.tema-icon {
    font-size: 3rem;
    color: var(--bs-warning);
    margin-bottom: 1rem;
}

.tema-card h3 {
    font-size: 1.4rem;
    color: var(--bs-secondary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.tema-card p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--bs-white);
    margin: 0;
}

/* Prefazione Section */
.prefazione-section {
    padding: 5rem 2rem;
    background: #1a1a1a;
}

.prefazione-header {
    text-align: center;
    margin-bottom: 3rem;
}

.prefazione-header h2 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--bs-primary);
    margin-bottom: 0.5rem;
}

.prefazione-header h3 {
    font-size: 1.8rem;
    color: var(--bs-warning);
    font-weight: 500;
    font-style: italic;
}

.prefazione-content {
    max-width: 900px;
    margin: 0 auto;
}

.prefazione-content p {
    font-size: 1.15rem;
    line-height: 1.9;
    color: var(--bs-white);
    margin-bottom: 1.8rem;
}

.prefazione-content .highlight-text {
    background: color-mix(in srgb, var(--bs-primary) 10%, transparent);
    border-left: 4px solid var(--bs-primary);
    padding: 1.5rem;
    font-size: 1.25rem;
    font-style: italic;
    color: var(--bs-secondary);
    margin: 2.5rem 0;
}

.prefazione-content strong {
    color: var(--bs-warning);
}

.prefazione-content .closing-text {
    font-size: 1.2rem;
    color: var(--bs-secondary);
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid color-mix(in srgb, var(--bs-primary) 30%, transparent);
}

/* Estratti Section */
.estratti-section {
    padding: 5rem 2rem;
    background: var(--bs-dark);
}

.estratti-section > .container > h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--bs-primary);
}

.estratto-box {
    background: color-mix(in srgb, var(--bs-primary) 5%, transparent);
    border: 1px solid color-mix(in srgb, var(--bs-primary) 20%, transparent);
    border-radius: 12px;
    padding: 3rem;
    margin-bottom: 3rem;
}

.estratto-box:last-child {
    margin-bottom: 0;
}

.estratto-header {
    border-bottom: 2px solid var(--bs-primary);
    padding-bottom: 1.5rem;
    margin-bottom: 2rem;
}

.estratto-header h3 {
    font-size: 1.5rem;
    color: var(--bs-warning);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.estratto-header h4 {
    font-size: 1.8rem;
    color: var(--bs-secondary);
    margin: 0;
    font-weight: 500;
}

.estratto-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--bs-white);
    margin-bottom: 1.5rem;
}

.estratto-content .opening-quote,
.estratto-content .closing-quote {
    font-size: 1.15rem;
    font-style: italic;
    color: var(--bs-secondary);
}

.estratto-content .highlight-text {
    background: color-mix(in srgb, var(--bs-primary) 15%, transparent);
    border-left: 4px solid var(--bs-primary);
    padding: 1.5rem;
    font-size: 1.15rem;
    font-style: italic;
    color: var(--bs-secondary);
    margin: 2rem 0;
}

.estratto-content strong {
    color: var(--bs-warning);
}

.estratto-content em {
    color: var(--bs-warning);
    font-style: italic;
}

.leggi-tutto {
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid color-mix(in srgb, var(--bs-primary) 30%, transparent);
    text-align: center;
}

/* CTA Acquisto */
.cta-acquisto {
    padding: 5rem 2rem;
    background: linear-gradient(135deg, #1a1a1a 0%, var(--bs-dark) 100%);
    text-align: center;
}

.cta-acquisto h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--bs-primary);
    margin-bottom: 1.5rem;
}

.cta-acquisto .lead {
    font-size: 1.2rem;
    color: var(--bs-white);
    max-width: 700px;
    margin: 0 auto 2rem;
}

.cta-acquisto .lead strong {
    color: var(--bs-warning);
}

.cta-acquisto .nota-acquisto {
    margin-top: 2rem;
    font-size: 0.95rem;
    color: var(--bs-gray-600);
    font-style: italic;
}

/* Responsive */
@media (max-width: 991px) {
    .hero-libro {
        padding: 4rem 1.5rem 3rem;
    }

    .hero-libro .col-lg-5 picture,
    .hero-libro .col-lg-5 img,
    .copertina-main,
    .copertina-main img {
        max-width: 300px;
    }

    .libro-info h1 {
        font-size: 3rem;
        text-align: center;
    }

    .libro-info .sottotitolo,
    .libro-info .manuale,
    .libro-info .autore {
        text-align: center;
    }

    .libro-buttons {
        justify-content: center;
    }

    .cosa-troverai,
    .prefazione-section,
    .estratti-section,
    .cta-acquisto {
        padding: 3rem 1.5rem;
    }

    .estratto-box {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 767px) {
    .libro-info h1 {
        font-size: 2.5rem;
        letter-spacing: 2px;
    }

    .libro-info .sottotitolo {
        font-size: 1.2rem;
    }

    .libro-info .manuale {
        font-size: 1.1rem;
    }

    .cosa-troverai h2,
    .prefazione-header h2,
    .estratti-section > .container > h2,
    .cta-acquisto h2 {
        font-size: 2rem;
    }

    .prefazione-header h3 {
        font-size: 1.5rem;
    }

    .tema-card {
        padding: 1.5rem;
    }

    .tema-icon {
        font-size: 2.5rem;
    }

    .prefazione-content p,
    .estratto-content p {
        font-size: 1rem;
    }

    .estratto-box {
        padding: 1.5rem 1rem;
    }

    .estratto-header h4 {
        font-size: 1.4rem;
    }
}