/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette - Baseada na identidade visual da coletânea */
    --primary-red: #8B1538; /* Vermelho borgonha principal */
    --secondary-red: #A91B47; /* Vermelho mais claro */
    --dark-red: #6B0F2A; /* Vermelho escuro */
    --primary-gold: #D4AF37; /* Dourado mantido */
    --secondary-gold: #B8860B;
    --light-gold: #F4E4BC;
    --white: #FFFFFF;
    --light-gray: #F5F5F5; /* Cinza claro do fundo */
    --medium-gray: #6C757D;
    --dark-gray: #343A40;
    --black: #212529;
    --darker-gray: #2C2C2C; /* Cinza mais escuro para contraste */
    --dark-bg: #202020; /* Fundo escuro ajustado */
    --card-dark: #2A2A2A; /* Cards escuros ajustados */
    --text-light: #E5E5E5;
    --gradient-bg: linear-gradient(135deg, #F8F8F8 0%, #E8E8E8 100%); /* Gradiente cinza claro */
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-light);
    background-color: var(--dark-bg);
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-size: var(--font-size-3xl);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--black);
}

/* Títulos para seções escuras */
.hero .section-title,
.context .section-title,
.benefits .section-title,
.cta-section .section-title,
.contact-info-section .section-title {
    color: var(--white);
}

.highlight {
    color: var(--primary-gold);
    font-weight: 600;
}

.highlight-text {
    color: var(--primary-gold);
    font-weight: 600;
}

/* Hero Section - ESCURA */
.hero {
    background: linear-gradient(135deg, var(--darker-gray) 0%, var(--dark-bg) 100%);
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="0.5" fill="%23D4AF37" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-banner {
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-image {
    width: 100%;
    height: 400px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.hero-image:hover {
    transform: scale(1.02);
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    color: var(--white);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
}

/* CTA Buttons */
.cta-primary, .cta-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.cta-primary {
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, #128C7E 0%, #25D366 100%);
}

.cta-secondary {
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--secondary-red) 100%);
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

.cta-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, var(--secondary-red) 0%, var(--primary-red) 100%);
}

/* Video Section - CLARA */
.video-section {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-bg);
}

.video-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.video-wrapper {
    margin-top: var(--spacing-xl);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    background: var(--white);
    padding: var(--spacing-sm);
}

.video-player {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    display: block;
    transition: all 0.3s ease;
}

.video-player:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Context Section - ESCURA */
.context {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--darker-gray) 0%, var(--dark-bg) 100%);
}

.context-text {
    font-size: var(--font-size-lg);
    color: var(--text-light);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

.book-card {
    background: var(--card-dark);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.book-cover {
    margin-bottom: var(--spacing-md);
    height: 280px; /* Aumentado para acomodar a proporção 7:10 */
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
}

.book-image {
    width: 100%;
    height: 100%;
    object-fit: contain; /* Mostra a imagem inteira */
    transition: transform 0.3s ease;
}

.book-card:hover .book-image {
    transform: scale(1.05);
}

.book-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-gold);
}

.book-card i {
    font-size: var(--font-size-3xl);
    color: var(--primary-gold);
    margin-bottom: var(--spacing-md);
}

.book-card h3 {
    font-size: var(--font-size-xl);
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.book-card p {
    color: var(--text-light);
    font-size: var(--font-size-base);
}

/* FAQ Section - CLARA */
.faq-section {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-bg);
}

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

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: var(--shadow-lg);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    cursor: pointer;
    background: var(--white);
    border: none;
    width: 100%;
    text-align: left;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: var(--light-gray);
}

.faq-question h3 {
    color: var(--black);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
}

.faq-icon {
    color: var(--primary-red);
    font-size: var(--font-size-lg);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: var(--white);
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: var(--spacing-lg);
    margin: 0;
    color: var(--dark-gray);
    line-height: 1.6;
}

/* Benefits Section - ESCURA */
.benefits {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-gray) 100%);
}

.benefits-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
}

.benefit-card {
    flex: 0 0 calc(33.333% - var(--spacing-lg) * 2 / 3);
    max-width: calc(33.333% - var(--spacing-lg) * 2 / 3);
    min-width: 280px;
    background: var(--card-dark);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-red), var(--secondary-red));
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-red), var(--secondary-red));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.benefit-icon i {
    font-size: var(--font-size-2xl);
    color: var(--white);
}

.benefit-card h3 {
    font-size: var(--font-size-xl);
    color: var(--white);
    margin-bottom: var(--spacing-sm);
}

.benefit-card p {
    color: var(--text-light);
    font-size: var(--font-size-base);
}

/* Eligibility Section - CLARA */
.eligibility {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-bg);
}

.eligibility-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.eligibility-text p {
    font-size: var(--font-size-lg);
    color: var(--dark-gray);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.support-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.support-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-md);
    color: var(--dark-gray);
    font-weight: 500;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--primary-gold);
}

.support-item i {
    color: var(--primary-gold);
}

/* CTA Section - ESCURA */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--black) 100%);
    color: var(--white);
    text-align: center;
}

.cta-title {
    font-size: var(--font-size-4xl);
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.cta-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Closing Section - CLARA */
.closing {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-bg);
}

.closing-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.closing-quote {
    font-size: var(--font-size-xl);
    color: var(--dark-gray);
    font-style: italic;
    line-height: 1.7;
    position: relative;
    padding: var(--spacing-xl);
}

.closing-quote::before {
    content: '"';
    font-size: var(--font-size-5xl);
    color: var(--primary-gold);
    position: absolute;
    top: -10px;
    left: 0;
    font-family: serif;
}

.closing-quote::after {
    content: '"';
    font-size: var(--font-size-5xl);
    color: var(--primary-gold);
    position: absolute;
    bottom: -30px;
    right: 0;
    font-family: serif;
}

/* Contact Info Section - ESCURA */
.contact-info-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--darker-gray) 0%, var(--dark-bg) 100%);
}

.contact-wrapper {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-intro {
    margin-bottom: var(--spacing-xl);
}

.contact-details {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-lg);
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--primary-red);
    transition: all 0.3s ease;
    min-width: 300px;
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--secondary-red);
}

.contact-icon {
    font-size: var(--font-size-xl);
    color: var(--primary-red);
    width: 24px;
    text-align: center;
}

.whatsapp-icon {
    font-size: var(--font-size-lg);
    color: #25D366;
    margin-left: var(--spacing-sm);
    transition: transform 0.3s ease;
}

.whatsapp-icon:hover {
    transform: scale(1.1);
}

.contact-item span,
.contact-item a {
    color: var(--dark-gray);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-lg);
}

.contact-item a:hover {
    color: var(--primary-red);
}

/* Footer */
.footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
}

.footer-logo {
    flex-shrink: 0;
}

.footer-logo-img {
    height: 60px;
    width: auto;
    filter: brightness(0) invert(1);
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-logo-img:hover {
    opacity: 1;
}

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

.footer-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--light-gray);
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    z-index: 1000;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-image {
        height: 250px;
    }
    
    .video-wrapper {
        padding: 2px;
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .books-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .support-features {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .cta-title {
        font-size: var(--font-size-3xl);
    }
    
    .closing-quote {
        font-size: var(--font-size-lg);
        padding: var(--spacing-lg);
    }
    
    .hero-banner {
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-image {
        height: 300px;
    }
    
    .video-wrapper {
        padding: var(--spacing-xs);
    }
    
    .book-cover {
        height: 200px; /* Ajustado para proporção 7:10 em tablet */
    }
    
    .benefit-card {
        flex: 0 0 calc(50% - var(--spacing-lg) / 2);
        max-width: calc(50% - var(--spacing-lg) / 2);
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .footer-text {
        text-align: center;
    }
    
    .contact-details {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .contact-item {
        min-width: 250px;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .contact-item span,
    .contact-item a {
        font-size: var(--font-size-base);
    }
    
    .faq-question h3 {
        font-size: var(--font-size-base);
    }
    
    .faq-question {
        padding: var(--spacing-md);
    }
    
    .faq-answer p {
        padding: var(--spacing-md);
    }
    
    .footer-logo-img {
        height: 50px;
    }
    
    .whatsapp-float {
        width: 50px;
        height: 50px;
        font-size: var(--font-size-xl);
        bottom: 15px;
        right: 15px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .cta-primary, .cta-secondary {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-base);
    }
    
    .book-card, .benefit-card {
        padding: var(--spacing-lg);
    }
    
    .closing-quote {
        font-size: var(--font-size-base);
    }
    
    .book-cover {
        height: 160px; /* Ajustado para proporção 7:10 em mobile */
    }
    
    .benefit-card {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .contact-details {
        flex-direction: column;
    }
    
    .contact-item {
        min-width: 200px;
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .contact-item span,
    .contact-item a {
        font-size: var(--font-size-sm);
    }
    
    .faq-question h3 {
        font-size: var(--font-size-sm);
    }
    
    .faq-question {
        padding: var(--spacing-sm);
    }
    
    .faq-answer p {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
    
    .footer-logo-img {
        height: 40px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .whatsapp-float {
        animation: none;
    }
}

/* Focus styles for accessibility */
.cta-primary:focus,
.cta-secondary:focus,
.whatsapp-float:focus {
    outline: 2px solid var(--primary-gold);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .whatsapp-float {
        display: none;
    }
    
    .hero::before {
        display: none;
    }
    
    .benefit-card::before {
        display: none;
    }
}