@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;600;700&family=Source+Sans+3:wght@400;500;600;700&display=swap');

/* 
 * A Culpa é das Ovelhas - Estilos
 * Baseado no design do Google Code Assist
 * Com suporte a Dark e Light themes
 */

:root {
    /* Colors - Inspired by Code Assist */
    --primary-blue: #1a73e8;
    --dark-blue: #0d47a1;
    --light-blue: #4285f4;
    --accent-gold: #f9ab00;
    --wine-red: #8b2e4a;
    --accent-ember: #c46a2f;
    --ink: #0d1320;
    --sand: #f2ead9;

    /* Dark Theme (padrão) - Melhor contraste e conforto */
    --bg-dark: #1e1e1e;
    --bg-darker: #121212;
    --bg-light: #f8f9fa;
    --text-white: #ffffff;
    --text-light: #e8e8e8;
    --text-gray: #c0c0c0;
    --text-dark: #202124;
    --border-light: rgba(255,255,255,0.18);
    --border-color: #404040;
    --shadow: rgba(0,0,0,0.3);
}

/* Theme Toggle Button */
.theme-btn {
    background: rgba(255,255,255,0.1);
    border: 2px solid rgba(255,255,255,0.3);
    color: #ffffff;
    font-size: 18px;
    padding: 6px 12px;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 16px;
}

.theme-btn:hover {
    background: rgba(255,255,255,0.2);
    border-color: var(--accent-gold);
    transform: scale(1.1);
}

/* ========== LIGHT MODE - Cores otimizadas para conforto visual ========== */
body.light-mode {
    background: #f5f5f5;
}

body.light-mode .header {
    background: #ffffff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

body.light-mode .logo-text {
    color: #1a1a1a;
}

body.light-mode .nav a {
    color: #444444;
}

body.light-mode .nav a:hover {
    color: #1565c0;
}

body.light-mode .theme-btn {
    background: rgba(0,0,0,0.04);
    border-color: #555555;
    color: #444444;
}

body.light-mode .theme-btn:hover {
    background: rgba(0,0,0,0.08);
    border-color: var(--accent-gold);
}

body.light-mode .hero {
    background: linear-gradient(135deg, #e8f4fc 0%, #d4e9f7 100%);
}

body.light-mode .hero-title {
    color: #1a365d;
}

body.light-mode .hero-subtitle {
    color: #b54500;
}

body.light-mode .hero-description {
    color: #334155;
}

body.light-mode .badge {
    background: #7a2442;
}

body.light-mode .btn-secondary {
    border-color: #1a365d;
    color: #1a365d;
    background: rgba(255,255,255,0.5);
}

body.light-mode .btn-secondary:hover {
    background: rgba(255,255,255,0.8);
}

body.light-mode .features {
    background: #ebebeb;
}

body.light-mode .section-title {
    color: #1a1a1a;
    text-shadow: none;
}

body.light-mode .feature-card {
    background: #ffffff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    border: 1px solid rgba(0,0,0,0.06);
}

body.light-mode .feature-card h3 {
    color: #1a1a1a;
}

body.light-mode .feature-card p {
    color: #444444;
}

body.light-mode .feature-link {
    color: #1565c0;
}

body.light-mode .manifesto {
    background: #f5f5f5;
}

body.light-mode .manifesto .section-title {
    color: #1a365d;
    text-shadow: none;
}

body.light-mode .manifesto .section-subtitle {
    color: #444444;
}

body.light-mode .manifesto-text h3,
body.light-mode .manifesto-text h4 {
    color: #1a365d;
}

body.light-mode .manifesto-text p {
    color: #334155;
}

body.light-mode .manifesto-text strong {
    color: #1a365d;
}

body.light-mode .bible-quote {
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.06) 0%, rgba(249, 171, 0, 0.06) 100%);
    color: #1a365d;
}

body.light-mode .manifesto-highlight {
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.08) 0%, rgba(249, 171, 0, 0.08) 100%);
}

body.light-mode .about-book {
    background: #ebebeb;
}

body.light-mode .about-book h2,
body.light-mode .about-book h3 {
    color: #1a1a1a;
}

body.light-mode .book-info p {
    color: #334155;
}

body.light-mode .author {
    background: #f5f5f5;
}

body.light-mode .author .section-title {
    color: #1a365d;
    text-shadow: none;
}

body.light-mode .author h2,
body.light-mode .author h3 {
    color: #1a1a1a;
}

body.light-mode .author-subtitle {
    color: #555555;
}

body.light-mode .author p {
    color: #444444;
}

body.light-mode .footer {
    background: #1e1e1e;
}

body.light-mode .footer-column h4 {
    color: #ffffff;
}

body.light-mode .footer a {
    color: #c0c0c0;
}

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

body {
    font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-light);
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 16px;
    background: var(--accent-gold);
    color: #1a1a1a;
    padding: 8px 12px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    z-index: 200;
    transition: top 0.2s ease;
}

.skip-link:focus {
    top: 16px;
}

body.home {
    font-family: 'Source Sans 3', 'Segoe UI', Tahoma, sans-serif;
    background: radial-gradient(circle at 20% 20%, rgba(249, 171, 0, 0.08), transparent 45%),
        radial-gradient(circle at 80% 0%, rgba(139, 46, 74, 0.12), transparent 50%),
        var(--bg-light);
}

body.home::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: linear-gradient(120deg, rgba(13, 19, 32, 0.05) 0%, transparent 45%),
        linear-gradient(45deg, rgba(13, 19, 32, 0.04) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

.home .hero-title,
.home .section-title,
.home .book-title,
.home .book-info h2,
.home .manifesto-text h3,
.home .manifesto-text h4,
.home .author-info h3 {
    font-family: 'Cormorant Garamond', Georgia, serif;
    letter-spacing: 0.3px;
}

.home .hero-title {
    font-size: 58px;
}

.reveal {
    opacity: 0;
    transform: translateY(16px);
    animation: rise 0.9s ease forwards;
    animation-delay: var(--delay, 0s);
}

@keyframes rise {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header,
.site-header {
    background: var(--bg-darker);
    padding: 16px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 8px var(--shadow);
}

.header .container,
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-white);
}

.logo-icon {
    font-size: 24px;
}

.logo-text {
    font-size: 16px;
    letter-spacing: 0.5px;
}

.nav,
.nav-menu {
    display: flex;
    gap: 24px;
    align-items: center;
}

.nav a,
.nav-menu a,
.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
    white-space: nowrap;
}

.nav a:hover,
.nav-menu a:hover,
.nav-link:hover {
    color: var(--text-white);
}

.nav-link.active {
    color: var(--accent-gold);
}

/* Menu Toggle (hamburger) */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    line-height: 1;
}

.menu-toggle:hover {
    color: var(--text-white);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--bg-darker) 100%);
    padding: 120px 0;
    color: var(--text-white);
    position: relative;
    z-index: 1;
}

.home .hero {
    background: radial-gradient(circle at top left, rgba(249, 171, 0, 0.18), transparent 45%),
        linear-gradient(140deg, #102a42 0%, #0b0f18 60%, #090b10 100%);
    overflow: hidden;
}

.home .hero::before {
    content: '';
    position: absolute;
    inset: -20% -10% auto -10%;
    height: 60%;
    background: radial-gradient(circle, rgba(196, 106, 47, 0.25) 0%, transparent 60%);
    opacity: 0.7;
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--wine-red);
    color: var(--text-white);
    padding: 8px 16px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    border: 2px solid rgba(255,255,255,0.2);
}

.badge-icon {
    font-size: 16px;
}

.hero-title {
    font-size: 56px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 16px;
    font-family: Georgia, serif;
}

.hero-subtitle {
    font-size: 28px;
    color: var(--accent-gold);
    font-style: italic;
    margin-bottom: 24px;
}

.hero-description {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-light);
    margin-bottom: 32px;
}

.hero-actions {
    display: flex;
    gap: 16px;
}

.hero-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-top: 32px;
}

.hero-meta-item {
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.12);
    padding: 16px;
    border-radius: 12px;
}

.meta-title {
    display: block;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 6px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.meta-text {
    display: block;
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.5;
}

.hero-note {
    margin-top: 20px;
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    letter-spacing: 1.2px;
    text-transform: uppercase;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary-blue);
    color: var(--text-white);
}

.btn-primary:hover {
    background: var(--light-blue);
    box-shadow: 0 4px 12px rgba(26, 115, 232, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-white);
    border: 2px solid var(--text-white);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
}

/* Book Cover */
.book-cover {
    background: linear-gradient(135deg, #1a3a52 0%, #0d1f2d 100%);
    padding: 48px 32px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    border: 1px solid rgba(249, 171, 0, 0.3);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
}

.book-cover:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 48px rgba(249, 171, 0, 0.2);
    border-color: rgba(249, 171, 0, 0.6);
}

.book-cover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--accent-gold), transparent);
}

.book-seal {
    background: rgba(139, 46, 74, 0.3);
    border: 2px solid var(--accent-gold);
    border-radius: 50%;
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.seal-icon {
    font-size: 24px;
}

.seal-text {
    font-size: 10px;
    font-weight: 700;
    color: var(--accent-gold);
}

.book-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    font-family: Georgia, serif;
    color: var(--text-white);
}

.book-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--wine-red);
    color: var(--text-white);
    padding: 8px 16px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
    border: 2px solid rgba(255,255,255,0.2);
}

.book-subtitle {
    font-size: 20px;
    color: var(--accent-gold);
    font-style: italic;
    margin-bottom: 32px;
}

.book-author {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 8px;
}

.book-role {
    font-size: 14px;
    color: var(--text-gray);
}

/* Features Section */
.features {
    padding: 80px 0;
    padding-top: 120px;
    background: var(--bg-dark);
    position: relative;
    z-index: 2;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    z-index: -1;
}

/* Light mode transition */
body.light-mode .features::before {
    background: linear-gradient(180deg, #d4e9f7 0%, #ebebeb 100%);
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 64px;
    color: var(--text-white);
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.home .features .feature-card {
    background: linear-gradient(160deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 100%);
    border: 1px solid rgba(255,255,255,0.08);
    color: var(--text-white);
}

.home .features .feature-card p {
    color: var(--text-light);
}

.feature-kicker {
    display: inline-block;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent-gold);
    margin-bottom: 12px;
    font-weight: 700;
}

.feature-card {
    background: white;
    padding: 40px 32px;
    border-radius: 12px;
    box-shadow: 0 2px 8px var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--shadow);
}

.feature-card-highlight {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--bg-darker) 100%);
    color: var(--text-white);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 24px;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
}

.feature-card p {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 24px;
    color: inherit;
    opacity: 0.9;
}

.feature-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: color 0.2s;
}

.feature-card-highlight .feature-link {
    color: var(--accent-gold);
}

.feature-link:hover {
    text-decoration: underline;
}

body.light-mode .home .features .feature-card {
    background: #ffffff;
    color: var(--text-dark);
}

body.light-mode .home .features .feature-card p {
    color: #4a4a4a;
}

/* Manifesto Section */
.manifesto {
    background: var(--bg-dark);
    padding: 80px 0;
}

.manifesto .section-title {
    color: var(--text-white);
}

.manifesto-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin-top: 16px;
}

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

.bible-quote {
    font-size: 24px;
    font-style: italic;
    line-height: 1.8;
    color: var(--dark-blue);
    border-left: 4px solid var(--primary-blue);
    padding-left: 32px;
    margin: 48px 0;
    font-family: Georgia, serif;
}

.bible-quote cite {
    display: block;
    font-size: 16px;
    margin-top: 16px;
    font-style: normal;
    color: var(--text-gray);
}

.bible-quote.small {
    font-size: 18px;
}

.manifesto-text h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-white);
}

.manifesto-text h4 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--accent-gold);
}

.manifesto-text p {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 24px;
    color: var(--text-light);
}

.manifesto-highlight {
    background: linear-gradient(135deg, rgba(26, 115, 232, 0.1) 0%, rgba(249, 171, 0, 0.1) 100%);
    padding: 32px;
    border-radius: 12px;
    margin: 32px 0;
    border-left: 4px solid var(--accent-gold);
}

.manifesto-list {
    list-style: none;
    margin: 32px 0;
}

.manifesto-list li {
    font-size: 22px;
    padding: 16px 0 16px 40px;
    position: relative;
    color: var(--text-light);
    font-weight: 500;
}

.manifesto-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-blue);
    font-weight: bold;
    font-size: 24px;
}

.manifesto-cta {
    text-align: center;
    margin-top: 64px;
}

/* About Book Section */
.about-book {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--bg-darker) 100%);
    padding: 80px 0;
    color: var(--text-white);
}

.book-points {
    list-style: none;
    margin-bottom: 32px;
    padding: 0;
}

.book-points li {
    padding-left: 24px;
    margin-bottom: 12px;
    position: relative;
    color: var(--text-light);
}

.book-points li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-gold);
}

.book-display {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 64px;
    align-items: center;
}

.book-cover-large {
    background: linear-gradient(135deg, #1a3a52 0%, #0d1f2d 100%);
    padding: 64px 40px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 12px 48px rgba(0,0,0,0.6);
    border: 1px solid rgba(249, 171, 0, 0.3);
}

.book-info h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
}

.book-info h3 {
    font-size: 28px;
    color: var(--accent-gold);
    margin-bottom: 24px;
}

.book-tagline {
    font-size: 20px;
    font-style: italic;
    color: var(--text-light);
    margin-bottom: 24px;
}

.book-info p {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 32px;
    color: var(--text-light);
}

.book-details {
    background: rgba(255,255,255,0.05);
    padding: 24px;
    border-radius: 8px;
    margin-bottom: 32px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-light);
}

.detail-item:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    color: var(--text-gray);
}

.detail-value {
    color: var(--text-white);
}

.book-actions {
    display: flex;
    gap: 16px;
}

/* Author Section */
.author {
    background: var(--bg-dark);
    padding: 80px 0;
}

.author .section-title {
    color: var(--text-white);
}

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

.author-info h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-white);
}

.author-subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 24px;
    font-style: italic;
}

.author-info p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--text-light);
}

.signal-strip {
    background: var(--bg-darker);
    padding: 32px 0 48px;
    position: relative;
    z-index: 2;
}

.signal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.signal-item {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 20px 24px;
    color: var(--text-white);
}

.signal-title {
    display: block;
    font-weight: 700;
    color: var(--accent-gold);
    margin-bottom: 8px;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: 0.8px;
}

.signal-text {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

.cta {
    background: linear-gradient(135deg, rgba(249, 171, 0, 0.1) 0%, rgba(139, 46, 74, 0.15) 100%);
    padding: 64px 0;
}

.cta-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 32px 40px;
    border-radius: 16px;
    color: var(--text-white);
}

.cta-text h2 {
    font-size: 32px;
    margin-bottom: 12px;
    font-family: 'Cormorant Garamond', Georgia, serif;
}

.cta-text p {
    color: var(--text-light);
    max-width: 520px;
}

.cta-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--bg-darker);
    color: var(--text-light);
    padding: 64px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand p {
    margin-top: 16px;
    color: var(--text-gray);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-white);
}

.footer-column a {
    display: block;
    color: var(--text-gray);
    text-decoration: none;
    font-size: 14px;
    margin-bottom: 12px;
    transition: color 0.2s;
}

.footer-column a:hover {
    color: var(--text-white);
}

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding-top: 24px;
    text-align: center;
    color: var(--text-gray);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-title {
        font-size: 42px;
    }

    .book-display {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .cta-panel {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 768px) {
    .nav,
    .nav-menu {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    /* Menu mobile aberto */
    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-darker);
        padding: 16px 24px;
        box-shadow: 0 4px 12px var(--shadow);
        gap: 16px;
    }

    body.light-mode .nav-menu.active {
        background: #ffffff;
    }

    .header-content {
        flex-wrap: wrap;
        position: relative;
    }

    .hero {
        padding: 60px 0;
    }

    .hero-title {
        font-size: 36px;
    }

    .section-title {
        font-size: 32px;
    }

    .features {
        padding: 48px 0;
    }

    .manifesto {
        padding: 48px 0;
    }

    .about-book {
        padding: 48px 0;
    }

    .author {
        padding: 48px 0;
    }

    .hero-meta {
        grid-template-columns: 1fr;
    }

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

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.theme-toggle:hover {
    background: rgba(255,255,255,0.1);
    color: var(--text-white);
}

body.light-theme .theme-toggle:hover,
body.light-mode .theme-toggle:hover {
    background: rgba(0,0,0,0.05);
    color: var(--text-dark);
}

body.light-mode .theme-toggle {
    color: #3c4043;
}

body.light-mode .menu-toggle {
    color: #3c4043;
}

body.light-mode .site-header,
body.light-mode .header {
    background: #ffffff;
    box-shadow: 0 2px 12px rgba(0,0,0,0.12);
}

body.light-mode .nav-link,
body.light-mode .nav a,
body.light-mode .nav-menu a {
    color: #3c4043;
}

body.light-mode .nav-link:hover,
body.light-mode .nav a:hover,
body.light-mode .nav-menu a:hover {
    color: #1a73e8;
}

body.light-mode .nav-link.active {
    color: #1a73e8;
}

/* Smooth transition para theme */
body {
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* ========================================
   ESTILOS PROMOCIONAIS - INDEX
   ======================================== */

/* Hero Promo */
.hero-promo {
    padding-bottom: 80px;
}

/* Banner Promocional */
.promo-banner {
    margin-bottom: 16px;
}

.promo-flash {
    display: inline-block;
    background: linear-gradient(90deg, #00c853, #00e676);
    color: #000;
    padding: 8px 20px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    animation: flash-pulse 2s ease-in-out infinite;
}

@keyframes flash-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.9; transform: scale(1.02); }
}

/* Hero Tagline */
.hero-tagline {
    font-size: 24px;
    color: var(--accent-gold);
    font-weight: 600;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Trust Items */
.hero-trust {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.15);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-light);
}

.trust-icon {
    color: #00c853;
    font-size: 18px;
    font-weight: bold;
}

/* Botão Pulsante */
.btn-pulse {
    animation: btn-pulse-animation 2s ease-in-out infinite;
    position: relative;
}

.btn-pulse::before {
    content: '';
    position: absolute;
    inset: -4px;
    background: var(--primary-blue);
    border-radius: 8px;
    opacity: 0;
    z-index: -1;
    animation: btn-glow 2s ease-in-out infinite;
}

@keyframes btn-pulse-animation {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

@keyframes btn-glow {
    0%, 100% { opacity: 0; transform: scale(1); }
    50% { opacity: 0.3; transform: scale(1.1); }
}

/* Botões maiores */
.btn-large {
    padding: 18px 40px;
    font-size: 18px;
}

.btn-xlarge {
    padding: 22px 48px;
    font-size: 20px;
    letter-spacing: 0.5px;
}

/* Book Cover Animated */
.book-cover-animated {
    position: relative;
}

.book-glow {
    position: absolute;
    inset: -20px;
    background: radial-gradient(circle, rgba(249, 171, 0, 0.3) 0%, transparent 70%);
    border-radius: 24px;
    z-index: -1;
    animation: book-glow-pulse 3s ease-in-out infinite;
}

@keyframes book-glow-pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

.book-cta {
    margin-top: 24px;
    background: var(--accent-gold);
    color: #000;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 1px;
}

/* Barra de Destaque */
.urgency-bar {
    background: linear-gradient(90deg, #8b2e4a, #c46a2f);
    padding: 20px 0;
    text-align: center;
    position: relative;
    z-index: 3;
}

.urgency-text {
    color: #fff;
    font-size: 17px;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.urgency-icon {
    font-size: 20px;
}

/* Seção Descobertas */
.discoveries {
    background: var(--bg-dark);
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.discovery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.discovery-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    padding: 32px;
    position: relative;
    transition: all 0.3s ease;
}

.discovery-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-gold);
    box-shadow: 0 12px 40px rgba(249, 171, 0, 0.15);
}

.discovery-number {
    position: absolute;
    top: 16px;
    right: 16px;
    font-size: 48px;
    font-weight: 700;
    color: rgba(255,255,255,0.08);
    font-family: 'Cormorant Garamond', Georgia, serif;
}

.discovery-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.discovery-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 12px;
}

.discovery-card p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-light);
}

.discovery-card strong {
    color: var(--accent-gold);
}

.discovery-cta {
    text-align: center;
    margin-top: 48px;
}

/* Citação Mega */
.quote-highlight {
    background: linear-gradient(135deg, #102a42 0%, #0b0f18 100%);
    padding: 80px 0;
    text-align: center;
}

.mega-quote {
    max-width: 800px;
    margin: 0 auto;
    padding: 0;
    border: none;
}

.mega-quote p {
    font-size: 36px;
    font-family: 'Cormorant Garamond', Georgia, serif;
    font-style: italic;
    color: var(--text-white);
    line-height: 1.4;
    margin-bottom: 16px;
}

.mega-quote cite {
    font-size: 18px;
    color: var(--accent-gold);
    font-style: normal;
}

.quote-call {
    font-size: 20px;
    color: var(--text-light);
    margin-top: 32px;
    font-weight: 500;
}

/* Signal Strip Redesenhado */
.signal-strip {
    background: var(--bg-darker);
    padding: 60px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.signal-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    text-align: center;
}

.signal-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.signal-number {
    font-size: 56px;
    font-weight: 700;
    color: var(--accent-gold);
    font-family: 'Cormorant Garamond', Georgia, serif;
    line-height: 1;
}

.signal-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-white);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.signal-text {
    font-size: 14px;
    color: var(--text-gray);
}

/* Público Alvo */
.target-audience {
    background: var(--bg-dark);
    padding: 100px 0;
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.audience-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.3s ease;
}

.audience-item:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(249, 171, 0, 0.3);
}

.audience-check {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #00c853, #00e676);
    color: #000;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 16px;
}

.audience-item p {
    font-size: 18px;
    color: var(--text-light);
    margin: 0;
    line-height: 1.5;
}

.audience-item strong {
    color: var(--accent-gold);
}

.audience-cta {
    text-align: center;
    margin-top: 48px;
}

.cta-question {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 24px;
}

/* Feature Tag */
.feature-tag {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--accent-gold);
    color: #000;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.feature-card {
    position: relative;
}

.feature-kicker {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

/* Manifesto Preview */
.manifesto-preview {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 16px;
    padding: 48px;
}

.manifesto-emphasis {
    font-size: 20px;
    color: var(--accent-gold);
    font-weight: 600;
}

/* CTA Principal */
.cta-main {
    background: linear-gradient(135deg, var(--wine-red) 0%, #5a1f32 100%);
    padding: 80px 0;
}

.cta-panel-promo {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-badge {
    display: inline-block;
    background: var(--accent-gold);
    color: #000;
    padding: 8px 24px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: 1px;
}

.cta-panel-promo h2 {
    font-size: 42px;
    font-family: 'Cormorant Garamond', Georgia, serif;
    color: var(--text-white);
    margin-bottom: 16px;
}

.cta-panel-promo p {
    font-size: 18px;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 32px;
}

.cta-buttons {
    margin-bottom: 24px;
}

.cta-note {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    font-style: italic;
}

/* Book Info Badge */
.book-info-badge {
    display: inline-block;
    background: var(--accent-gold);
    color: #000;
    padding: 6px 16px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

/* Book Points */
.book-points {
    margin: 32px 0;
}

.book-point {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.book-point:last-child {
    border-bottom: none;
}

.point-icon {
    font-size: 24px;
}

.book-point span:last-child {
    font-size: 16px;
    color: var(--text-light);
}

/* Author Quote */
.author-quote {
    background: rgba(255,255,255,0.05);
    border-left: 4px solid var(--accent-gold);
    padding: 24px;
    margin: 24px 0;
    font-size: 18px;
    font-style: italic;
    color: var(--text-light);
}

.author-quote cite {
    display: block;
    margin-top: 12px;
    font-size: 14px;
    font-style: normal;
    color: var(--accent-gold);
}

/* Final CTA */
.final-cta {
    background: linear-gradient(135deg, #102a42 0%, #0b0f18 100%);
    padding: 100px 0;
    text-align: center;
}

.final-cta h2 {
    font-size: 48px;
    font-family: 'Cormorant Garamond', Georgia, serif;
    color: var(--text-white);
    margin-bottom: 16px;
}

.final-cta p {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 32px;
}

/* ========================================
   LIGHT MODE - Estilos Promocionais
   ======================================== */

body.light-mode .promo-flash {
    background: linear-gradient(90deg, #00a844, #00c853);
}

body.light-mode .hero-tagline {
    color: #b54500;
}

body.light-mode .hero-trust {
    border-top-color: rgba(0,0,0,0.1);
}

body.light-mode .trust-item {
    color: #334155;
}

body.light-mode .urgency-bar {
    background: linear-gradient(90deg, #a33654, #d47a3f);
}

body.light-mode .discoveries {
    background: #ebebeb;
}

body.light-mode .discovery-card {
    background: #ffffff;
    border-color: rgba(0,0,0,0.06);
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

body.light-mode .discovery-card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

body.light-mode .discovery-number {
    color: rgba(0,0,0,0.05);
}

body.light-mode .discovery-card h3 {
    color: #1a1a1a;
}

body.light-mode .discovery-card p {
    color: #444444;
}

body.light-mode .quote-highlight {
    background: linear-gradient(135deg, #e8f4fc 0%, #d4e9f7 100%);
}

body.light-mode .mega-quote p {
    color: #1a365d;
}

body.light-mode .quote-call {
    color: #334155;
}

body.light-mode .signal-strip {
    background: #f5f5f5;
    border-color: rgba(0,0,0,0.06);
}

body.light-mode .signal-title {
    color: #1a1a1a;
}

body.light-mode .signal-text {
    color: #555555;
}

body.light-mode .target-audience {
    background: #f5f5f5;
}

body.light-mode .audience-item {
    background: #ffffff;
    border-color: rgba(0,0,0,0.06);
}

body.light-mode .audience-item:hover {
    background: #ffffff;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

body.light-mode .audience-item p {
    color: #334155;
}

body.light-mode .cta-question {
    color: #444444;
}

body.light-mode .manifesto-preview {
    background: #ffffff;
    border-color: rgba(0,0,0,0.06);
}

body.light-mode .manifesto-preview h3 {
    color: #1a365d;
}

body.light-mode .manifesto-preview p {
    color: #334155;
}

body.light-mode .manifesto-list li {
    color: #334155;
}

body.light-mode .manifesto-list li::before {
    color: #1565c0;
}

body.light-mode .manifesto-emphasis {
    color: #b54500;
}

body.light-mode .cta-main {
    background: linear-gradient(135deg, #8b2e4a 0%, #6a2339 100%);
}

body.light-mode .book-point {
    border-bottom-color: rgba(255,255,255,0.15);
}

body.light-mode .author-quote {
    background: rgba(0,0,0,0.02);
}

body.light-mode .final-cta {
    background: linear-gradient(135deg, #1a365d 0%, #0d1f33 100%);
}

/* Responsive - Elementos Promocionais */
@media (max-width: 768px) {
    .hero-tagline {
        font-size: 18px;
    }

    .hero-trust {
        flex-direction: column;
        gap: 12px;
    }

    .signal-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .signal-number {
        font-size: 42px;
    }

    .mega-quote p {
        font-size: 24px;
    }

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

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

    .cta-panel-promo h2 {
        font-size: 32px;
    }

    .final-cta h2 {
        font-size: 32px;
    }

    .btn-xlarge {
        padding: 18px 32px;
        font-size: 16px;
    }

    .manifesto-preview {
        padding: 32px 24px;
    }
}