/* ============================================
   SCINTILLE, ANCORA SCINTILLE. PER L'ETERNITÀ
   Landing Page Styles
   ============================================ */

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Palette luminosa ed evocativa */
    --color-primary: #f4e8d0;        /* Beige caldo luminoso */
    --color-secondary: #ffd89b;      /* Oro pallido */
    --color-accent: #ffb347;         /* Arancio scintillante */
    --color-dark: #2c2416;           /* Marrone scuro */
    --color-text: #3a3328;           /* Testo principale */
    --color-text-light: #6b5e4f;    /* Testo secondario */
    --color-white: #fffef9;          /* Bianco caldo */
    --color-sparkle: #ffe066;        /* Giallo brillante per accenti */

    /* Tipografia */
    --font-primary: 'Georgia', 'Times New Roman', serif;
    --font-secondary: 'Helvetica Neue', Arial, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-secondary);
    color: var(--color-text);
    line-height: 1.7;
    background-color: var(--color-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* === HERO SECTION === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 30%, rgba(255, 224, 102, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 179, 71, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, transparent 0%, rgba(44, 36, 22, 0.05) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    width: 100%;
    padding: var(--spacing-lg) 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero-text {
    animation: fadeInUp 1s ease-out;
}

.book-title {
    font-family: var(--font-primary);
    font-size: 3.5rem;
    font-weight: 300;
    line-height: 1.2;
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 4px rgba(255, 224, 102, 0.3);
}

.author {
    font-size: 1.3rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
}

.author-name {
    font-weight: 600;
    color: var(--color-dark);
    font-family: var(--font-primary);
}

.tagline {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-sparkle) 100%);
    color: var(--color-dark);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 179, 71, 0.4);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.cta-button:hover::before {
    width: 300px;
    height: 300px;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(255, 179, 71, 0.6);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease-out;
}

.book-cover {
    max-width: 100%;
    height: auto;
    max-height: 600px;
    border-radius: 8px;
    box-shadow:
        0 20px 60px rgba(44, 36, 22, 0.3),
        0 0 40px rgba(255, 224, 102, 0.2);
    transition: transform 0.3s ease;
}

.book-cover:hover {
    transform: scale(1.05) rotate(1deg);
}

/* === TRAMA SECTION === */
.trama {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-white);
    position: relative;
}

.section-title {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 300;
    text-align: center;
    color: var(--color-dark);
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    margin: var(--spacing-sm) auto 0;
}

.trama-content {
    max-width: 800px;
    margin: 0 auto;
}

.trama-opening {
    font-size: 1.35rem;
    line-height: 1.8;
    color: var(--color-dark);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    font-weight: 500;
    font-family: var(--font-primary);
}

.trama-text {
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.trama-text em {
    color: var(--color-accent);
    font-style: italic;
}

.trama-closing {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--color-dark);
    text-align: center;
    margin: var(--spacing-lg) 0;
    font-weight: 500;
    font-style: italic;
    font-family: var(--font-primary);
}

/* Beneficenza Box */
.beneficenza-box {
    background: linear-gradient(135deg, rgba(255, 216, 155, 0.2) 0%, rgba(255, 179, 71, 0.15) 100%);
    border: 2px solid var(--color-accent);
    border-radius: 16px;
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    text-align: center;
    position: relative;
    box-shadow: 0 8px 24px rgba(255, 179, 71, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.beneficenza-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(255, 179, 71, 0.3);
}

.beneficenza-box::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--color-sparkle), var(--color-accent));
    border-radius: 16px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.beneficenza-box:hover::before {
    opacity: 0.2;
}

.beneficenza-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-sparkle));
    border-radius: 50%;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 4px 16px rgba(255, 179, 71, 0.4);
}

.beneficenza-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-white);
}

.beneficenza-title {
    font-family: var(--font-primary);
    font-size: 1.6rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--spacing-sm);
}

.beneficenza-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text);
    text-align: center;
}

.beneficenza-text strong {
    color: var(--color-dark);
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-sparkle), var(--color-accent));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-size: 200% 200%;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.trama-quote {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-style: italic;
    text-align: center;
    color: var(--color-accent);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    position: relative;
    border-left: 4px solid var(--color-sparkle);
    background: linear-gradient(90deg, rgba(255, 216, 155, 0.1), transparent);
}

.trama-quote::before {
    content: '"';
    font-size: 4rem;
    position: absolute;
    top: -20px;
    left: 10px;
    color: var(--color-secondary);
    opacity: 0.3;
}

/* === ACQUISTA SECTION === */
.acquista {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-primary) 100%);
}

/* Amazon Section */
.amazon-section {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.amazon-title {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
}

.amazon-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-sparkle) 100%);
    color: var(--color-dark);
    text-decoration: none;
    padding: 1.2rem 3rem;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: 600;
    box-shadow: 0 6px 20px rgba(255, 179, 71, 0.4);
    transition: all 0.3s ease;
    border: 2px solid var(--color-accent);
}

.amazon-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(255, 179, 71, 0.6);
    background: linear-gradient(135deg, var(--color-sparkle) 0%, var(--color-accent) 100%);
}

.amazon-icon {
    width: 32px;
    height: 32px;
}

/* Cataloghi Section */
.cataloghi-section {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.cataloghi-text {
    font-size: 1.2rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.cataloghi-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.catalogo-link {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: var(--color-white);
    color: var(--color-dark);
    text-decoration: none;
    border: 2px solid var(--color-secondary);
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.catalogo-link:hover {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    color: var(--color-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 179, 71, 0.3);
}

/* eBook Section */
.ebook-section {
    text-align: center;
}

.ebook-title {
    font-family: var(--font-primary);
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--color-dark);
    margin-bottom: var(--spacing-md);
}

.ebook-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    max-width: 700px;
    margin: 0 auto;
}

.ebook-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-white);
    border: 2px solid var(--color-secondary);
    border-radius: 12px;
    padding: var(--spacing-md);
    text-decoration: none;
    color: var(--color-dark);
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.ebook-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(255, 179, 71, 0.3);
    border-color: var(--color-accent);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-primary) 100%);
}

.ebook-icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    transition: color 0.3s ease;
}

.ebook-button:hover .ebook-icon {
    color: var(--color-sparkle);
}

/* Format Divider */
.format-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: var(--spacing-lg) 0;
    position: relative;
}

.format-divider::before,
.format-divider::after {
    content: '';
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-secondary), transparent);
    max-width: 200px;
}

.divider-text {
    padding: 0 var(--spacing-md);
    font-family: var(--font-primary);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--color-text-light);
    background-color: var(--color-primary);
    border-radius: 20px;
    padding: var(--spacing-xs) var(--spacing-md);
}

.stores-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    max-width: 900px;
    margin: 0 auto;
}

.store-button {
    background: var(--color-white);
    border: 2px solid var(--color-secondary);
    border-radius: 12px;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.store-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(255, 179, 71, 0.3);
    border-color: var(--color-accent);
    background: linear-gradient(135deg, var(--color-white) 0%, var(--color-primary) 100%);
}

.store-icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    transition: color 0.3s ease;
}

.store-button:hover .store-icon {
    color: var(--color-sparkle);
}

.store-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-dark);
}

/* === PRESENTAZIONI SECTION === */
.presentazioni {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-white) 100%);
}

.presentazioni-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.presentazioni-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.presentazione-placeholder {
    background: var(--color-white);
    border: 3px dashed var(--color-secondary);
    border-radius: 12px;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    text-align: center;
    transition: all 0.3s ease;
}

.presentazione-placeholder:hover {
    border-color: var(--color-accent);
    background: rgba(255, 216, 155, 0.1);
}

.presentazione-placeholder svg {
    width: 80px;
    height: 80px;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.presentazione-placeholder p {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.placeholder-note {
    font-size: 0.9rem;
    color: var(--color-text-light);
    font-style: italic;
}

.presentazioni-info {
    text-align: center;
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.8;
}

.presentazioni-info code {
    background: var(--color-secondary);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--color-dark);
}

/* Stile per immagini presentazioni (quando verranno aggiunte) */
.presentazioni-grid img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.presentazioni-grid img:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 32px rgba(255, 179, 71, 0.4);
}

/* === FOOTER === */
.footer {
    background-color: var(--color-dark);
    color: var(--color-primary);
    padding: var(--spacing-md) 0;
    text-align: center;
}

.footer-text {
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
}

.footer-sparkle {
    font-size: 0.95rem;
    color: var(--color-sparkle);
}

/* === MODAL === */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(44, 36, 22, 0.8);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--color-white);
    border-radius: 16px;
    width: 90%;
    max-width: 1200px;
    height: 90vh;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    animation: slideIn 0.3s ease;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--color-accent);
    color: var(--color-dark);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.modal-close:hover {
    background: var(--color-sparkle);
    transform: rotate(90deg);
}

.modal-header {
    padding: var(--spacing-md);
    border-bottom: 2px solid var(--color-secondary);
    text-align: center;
}

.modal-header h3 {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

.modal-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.modal-body {
    flex: 1;
    overflow: hidden;
    padding: var(--spacing-sm);
}

#storeIframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
}

.modal-fallback {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: var(--spacing-md);
}

.modal-fallback p {
    font-size: 1.2rem;
    color: var(--color-text);
}

.fallback-button {
    padding: 1rem 2rem;
    background: var(--color-accent);
    color: var(--color-dark);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.fallback-button:hover {
    background: var(--color-sparkle);
    transform: translateY(-2px);
}

/* === ANIMATIONS === */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .hero-text {
        text-align: center;
    }

    .book-title {
        font-size: 2.5rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .book-cover {
        max-height: 400px;
    }

    .section-title {
        font-size: 2rem;
    }

    /* Amazon responsive */
    .amazon-title {
        font-size: 1.5rem;
    }

    .amazon-button {
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }

    .amazon-icon {
        width: 28px;
        height: 28px;
    }

    /* Cataloghi responsive */
    .cataloghi-text {
        font-size: 1.1rem;
    }

    .cataloghi-list {
        flex-direction: column;
        align-items: center;
    }

    .catalogo-link {
        width: 80%;
        text-align: center;
    }

    /* eBook responsive */
    .ebook-title {
        font-size: 1.5rem;
    }

    .ebook-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .format-divider::before,
    .format-divider::after {
        max-width: 100px;
    }

    .divider-text {
        font-size: 1rem;
    }

    /* Presentazioni responsive */
    .presentazioni-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .presentazione-placeholder {
        min-height: 300px;
    }

    .trama-opening {
        font-size: 1.2rem;
    }

    .trama-text {
        font-size: 1rem;
        text-align: left;
    }

    .trama-closing {
        font-size: 1.1rem;
    }

    .beneficenza-box {
        padding: var(--spacing-md);
    }

    .beneficenza-icon {
        width: 50px;
        height: 50px;
    }

    .beneficenza-icon svg {
        width: 28px;
        height: 28px;
    }

    .beneficenza-title {
        font-size: 1.3rem;
    }

    .beneficenza-text {
        font-size: 1rem;
    }

    .trama-quote {
        font-size: 1.2rem;
    }

    .stores-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .modal-content {
        width: 95%;
        height: 95vh;
    }

    .modal-header h3 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }

    .book-title {
        font-size: 2rem;
    }

    .stores-grid {
        grid-template-columns: 1fr;
    }

    .cta-button {
        width: 100%;
        text-align: center;
    }
}