/* Variáveis de Cores (Clean Sci-Fi) */
:root {
    --bg-white: #ffffff;
    --bg-gray: #f8fafc;
    --text-dark: #0f172a;
    --text-light: #475569;
    --primary-blue: #2563eb;
    --primary-hover: #1d4ed8;
    --accent-orange: #ea580c;
    --font-main: 'Poppins', sans-serif;
}

/* Reset e Setup Básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

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

/* Tipografia */
h1, h2, h3 {
    line-height: 1.2;
    color: var(--text-dark);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 48px;
}

/* Botões - Atualizados para priorizar Kindle Unlimited */
.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.btn-primary {
    background-color: var(--primary-blue);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.3);
}

.btn-ku {
    background-color: var(--accent-orange);
    color: #fff;
    text-transform: uppercase;
}

.btn-ku:hover {
    background-color: #c2410c;
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(234, 88, 12, 0.3);
}

.btn-large {
    width: 100%;
    font-size: 1.2rem;
    padding: 20px;
}

.btn-large:hover {
    transform: scale(1.02);
}

/* Review Badge Hero */
.review-badge {
    display: inline-block;
    background-color: #fffbea;
    color: #b45309;
    padding: 12px 20px;
    border-radius: 8px;
    border: 1px solid #fde68a;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 24px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    font-style: italic;
}

/* Hero Section */
.hero {
    padding: 100px 0 80px;
    background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
    overflow: hidden;
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
}

.badge {
    display: inline-block;
    background-color: #e0e7ff;
    color: var(--primary-blue);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 2.7rem;
    font-weight: 900;
    margin-bottom: 24px;
}

.highlight {
    color: var(--primary-blue);
}

.hero p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 32px;
}

.cta-group {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
}

.sub-cta {
    font-size: 0.875rem;
    color: var(--text-light);
}

.hero-image {
    position: relative;
    text-align: center;
}

.hero-image img {
    max-width: 90%;
    border-radius: 12px;
    position: relative;
    z-index: 2;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Efeito de brilho atrás do livro (Glassmorphism sutil) */
.glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(37,99,235,0.4) 0%, rgba(255,255,255,0) 70%);
    z-index: 1;
    filter: blur(40px);
}

/* Premise Section */
.premise {
    padding: 80px 0;
}

.premise-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.premise-text h2 {
    font-size: 2.2rem;
    margin-bottom: 24px;
}

.premise-text p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 24px;
}

.features {
    list-style: none;
}

.features li {
    margin-bottom: 16px;
    font-size: 1.05rem;
    color: var(--text-dark);
}

.quote-box {
    background-color: var(--bg-white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 30px -5px rgba(0, 0, 0, 0.05);
    font-size: 1.4rem;
    font-style: italic;
    font-weight: 700;
    color: var(--primary-blue);
    border-left: 8px solid var(--accent-orange);
}

/* Characters Section */
.characters {
    padding: 100px 0;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    transition: transform 0.3s ease;
    border: 1px solid #e2e8f0;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Faixas de cor para cada personagem */
.card-header { height: 8px; }
.kevin-theme { background-color: #10b981; } /* Verde terra/natureza */
.joyce-theme { background-color: #8b5cf6; } /* Roxo poder mental */
.erico-theme { background-color: var(--accent-orange); } /* Laranja fogo */

.card-body {
    padding: 32px 24px;
}

.card-body h3 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.power-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-light);
    background-color: #f1f5f9;
    padding: 4px 12px;
    border-radius: 50px;
    margin-bottom: 16px;
}

/* Offer Section */
.offer {
    padding: 100px 0;
}

.offer-box {
    background-color: var(--bg-white);
    max-width: 600px;
    margin: 0 auto;
    padding: 56px 40px;
    border-radius: 24px;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
    border: 1px solid #e2e8f0;
}

.offer-box h2 {
    font-size: 2.2rem;
    margin-bottom: 16px;
}

.price {
    margin: 32px 0;
}

.strike {
    display: block;
    font-size: 1.2rem;
    color: var(--text-light);
    text-decoration: line-through;
}

.current {
    display: block;
    font-size: 3rem;
    font-weight: 900;
    color: var(--text-dark);
}

.secure {
    margin-top: 24px;
    font-size: 0.875rem;
    color: var(--text-light);
}

/* Footer */
footer {
    padding: 32px 0;
    text-align: center;
    color: var(--text-light);
    border-top: 1px solid #e2e8f0;
}

/* Responsividade Mobile */
@media (max-width: 768px) {
    .hero-wrapper, .premise-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .cta-group {
        align-items: center;
    }

    .features li {
        text-align: left;
    }

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

    .offer-box {
        padding: 40px 24px;
    }
}