/* ================================
   RESET & BASE STYLES
   ================================ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette – Beloved Seniors Workbook */
    --primary-color: #698acd;   /* azul shape / elementos principais */
    --primary-dark: #253652;    /* azul marinho (títulos fortes, hovers mais escuros) */
    --primary-light: #cfe2f3;   /* azul claro (fundos suaves) */
    --secondary-color: #f6947b; /* coral (detalhes, chips, badges) */
    --accent-color: #f4c553;    /* amarelo do selo “40” (destaques, ícones especiais) */
    
    /* Cores de texto */
    --text-dark: #253652;   /* textos e títulos principais */
    --text-medium: #5f6b7a; /* textos secundários */
    --text-light: #9ca3af;  /* observações, legendas */

    /* Fundos neutros */
    --bg-white: #ffffff;   /* cards e áreas em destaque */
    --bg-light: #f9f3e5;   /* creme, inspirado no miolo da capa */
    --bg-gray: #cfe2f3;    /* azul clarinho para seções alternadas */


    /* Fundos Hero */

  --hero-bg-image: none;
  --hero-bg-overlay: linear-gradient(
    180deg,
    rgba(0, 138, 205, .25) 0%,
    rgba(0, 138, 205, .10) 55%,
    rgba(0, 138, 205, .25) 100%
  );
  
  

    /* Feedback */
    --success: #95ba99;   /* verde sálvia */
    --warning: #f4c553;   /* amarelo do selo */
    --info: #698acd;      /* azul principal */

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

/* ================================
   TYPOGRAPHY
   ================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-dark);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-medium);
}

/* ================================
   LAYOUT & CONTAINERS
   ================================ */

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

section {
    padding: var(--spacing-xl) 0;
}

/* ================================
   BUTTONS
   ================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-xl {
    padding: 1.5rem 3rem;
    font-size: 1.25rem;
}

/* ================================
   HERO SECTION
   ================================ */
.hero{
  background-color: var(--primary-color); /* fallback */
  background-image: var(--hero-bg-overlay), var(--hero-bg-image);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-blend-mode: multiply; /* “mescla” e mantém contraste */
    
    color: white;
    padding: var(--spacing-xl) 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 width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    animation: fadeInDown 0.8s ease;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    color: white;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-title .highlight {
    /* Gradiente usando amarelo do selo + coral da capa */
    background: linear-gradient(90deg, #f4c553, #f6947b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}


@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-md);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.hero-cta {
    margin: var(--spacing-lg) 0;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

.cta-subtext {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    animation: fadeInUp 0.8s ease 0.8s backwards;
}

.stat-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    font-family: var(--font-heading);
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.9);
    margin-top: var(--spacing-xs);
}

/* ================================
   SECTION TITLES
   ================================ */

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-md);
}

.section-title-center {
    text-align: center;
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-lg);
}

.section-intro {
    font-size: 1.125rem;
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

/* ================================
   PROBLEM SECTION
   ================================ */

.problem-section {
    background-color: var(--bg-light);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.problem-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.problem-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--secondary-color), #be185d);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.problem-icon i {
    font-size: 1.75rem;
    color: white;
}

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.problem-card p {
    font-size: 1rem;
    line-height: 1.6;
}

/* ================================
   SOLUTION SECTION
   ================================ */

.solution-section {
    background: white;
}

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

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

.benefit-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.benefit-item i {
    color: var(--success);
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.benefit-item div {
    flex: 1;
}

.benefit-item strong {
    color: var(--text-dark);
    font-weight: 600;
}

.solution-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.workbook-preview {
    width: 100%;
    max-width: 400px;
}

.preview-card {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    text-align: center;
    color: white;
}

.preview-card i {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-md);
}

.preview-card p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.125rem;
    font-weight: 500;
}



/* Layout da seção de solução (texto + capa lado a lado) */
.solution-content {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    align-items: center;
}

/* Coluna de texto */
.solution-text {
    flex: 1 1 320px;
}

/* Coluna da capa */
.solution-visual {
    flex: 0 1 440px;
    display: flex;
    justify-content: center;
}

/* Contêiner da capa */
.workbook-preview {
    max-width: 400px;
    width: 100%;
}

/* Mockup da capa do livro */
.workbook-cover {
    Xbackground: var(--bg-light);          /* creme, seguindo a capa */
    border-radius: 1.5rem;
    padding: 1rem;
    box-shadow: var(--shadow-lg);         /* sombra suave já definida em :root */
    Xtransform: rotate(-4deg);             /* leve inclinação pra parecer livro apoiado */
    transform-origin: center bottom;
    text-align: center;
}

/* Imagem da capa */
.workbook-cover img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 0.75rem;
}

/* Texto abaixo da capa */
.workbook-cover figcaption {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-medium);
}




/* ================================
   HOW IT WORKS SECTION
   ================================ */

.how-it-works {
    background: var(--secondary-color);/*var(--bg-light);*/
}

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

.step-card {
    background: var(--bg-light);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    position: relative;
    transition: all var(--transition-normal);
}

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

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: var(--warning);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
}

.step-icon {
    margin: var(--spacing-md) 0;
}

.step-icon i {
    font-size: 3rem;
    color: var(--primary-color);
}

.step-card h3 {
    margin-bottom: var(--spacing-sm);
}

/* ================================
   FOR WHOM SECTION
   ================================ */

.for-whom-section {
    background: white;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.audience-card {
    background: var(--bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 2px solid transparent;
    transition: all var(--transition-normal);
}

.audience-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    background: white;
    box-shadow: var(--shadow-lg);
}

.audience-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--info), #2563eb);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.audience-icon i {
    font-size: 2rem;
    color: white;
}

.audience-card h3 {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-sm);
}

/* ================================
   FEATURES SECTION
   ================================ */

.features-section {
    /* Gradiente inspirado na capa: azul para azul-marinho */
    background: var(--primary-color); /*linear-gradient(135deg, #698acd 0%, #253652 100%);*/
    color: white;
}

.features-section .section-title-center {
    color: white;
}

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

.feature-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 2.5rem;
    color: var(--warning);
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    color: white;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: rgba(255, 255, 255, 0.9);
}

/* ================================
   TESTIMONIALS SECTION
   ================================ */

.testimonials-section {
    background: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
}

.quote-icon {
    position: absolute;
    top: -15px;
    left: var(--spacing-md);
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quote-icon i {
    color: white;
    font-size: 1rem;
}

.testimonial-text {
    font-size: 1.125rem;
    font-style: italic;
    color: var(--text-medium);
    margin: var(--spacing-md) 0;
    line-height: 1.8;
}

.testimonial-author {
    border-top: 2px solid var(--bg-gray);
    padding-top: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.testimonial-author strong {
    display: block;
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.testimonial-author span {
    font-size: 0.875rem;
    color: var(--text-light);
}

/* ================================
   CTA SECTION
   ================================ */

.cta-section {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
    color: white;
}

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

.cta-title {
    color: white;
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-md);
}

.cta-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-lg);
}

.cta-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.cta-feature {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.95);
}

.cta-feature i {
    color: var(--success);
    font-size: 1.25rem;
}

.cta-button-wrapper {
    margin-top: var(--spacing-lg);
}

.cta-guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
}

.cta-guarantee i {
    color: var(--success);
}

/* ================================
   FAQ SECTION
   ================================ */

.faq-section {
    background: white;
}

.faq-grid {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.faq-item {
    background: var(--bg-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    cursor: pointer;
    user-select: none;
}

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

.faq-question h3 {
    font-size: 1.125rem;
    margin: 0;
    flex: 1;
}

.faq-question i {
    color: var(--primary-color);
    transition: transform var(--transition-normal);
    font-size: 1.25rem;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    font-size: 1rem;
    line-height: 1.7;
}

/* ================================
   FOOTER
   ================================ */

.footer {
    background: var(--text-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4,
.footer-contact h4 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-light);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all var(--transition-normal);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}



/* ================================
   RESPONSIVE DESIGN
   ================================ */

@media (max-width: 768px) {
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .solution-content {
        grid-template-columns: 1fr;
        flex-direction: column;
    }

    .workbook-cover {
        transform: rotate(0deg);
    }    
    
    .solution-visual {
        order: -1;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .cta-features {
        grid-template-columns: 1fr;
        text-align: left;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}


@media (max-width: 480px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .problems-grid,
    .steps-grid,
    .audience-grid,
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================
   ANIMATIONS & UTILITIES
   ================================ */

.fade-in {
    animation: fadeIn 0.6s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.slide-in-left {
    animation: slideInLeft 0.6s ease;
}

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

.slide-in-right {
    animation: slideInRight 0.6s ease;
}

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

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}