/* Reset e configurações básicas */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: #2c3e50;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: #ffffff;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    min-height: 100vh;
}

/* Header */
.header {
    text-align: center;
    padding: 40px 20px 20px;
    background: #ffffff;
    border-bottom: 1px solid #e9ecef;
}

.logo {
    max-width: 200px;
    height: auto;
    opacity: 0.9;
}

/* Carta */
.letter {
    padding: 60px 60px 40px;
    background: #ffffff;
}

.letter-header {
    text-align: center;
    margin-bottom: 50px;
    border-bottom: 2px solid #c0392b;
    padding-bottom: 30px;
}

.letter-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #c0392b;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1.2rem;
    color: #7f8c8d;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Conteúdo da carta */
.letter-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.greeting {
    font-size: 1.3rem;
    font-weight: 600;
    color: #c0392b;
    margin-bottom: 30px;
}

.letter-content p {
    margin-bottom: 25px;
    text-align: justify;
}

.letter-content h2 {
    font-size: 1.8rem;
    color: #c0392b;
    margin: 40px 0 25px;
    font-weight: 600;
    border-left: 4px solid #c0392b;
    padding-left: 20px;
}

.letter-content h3 {
    font-size: 1.4rem;
    color: #2c3e50;
    margin: 35px 0 20px;
    font-weight: 600;
}

/* Listas */
.benefits-list,
.target-list {
    margin: 25px 0;
    padding-left: 0;
    list-style: none;
}

.benefits-list li,
.target-list li {
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
}

.benefits-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #27ae60;
    font-weight: bold;
    font-size: 1.2rem;
}

.target-list li {
    padding-left: 0;
}

/* Seções especiais */
.personal-section {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    margin: 40px 0;
    border-left: 4px solid #c0392b;
}

.offer-section {
    background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
    color: white;
    padding: 40px;
    border-radius: 15px;
    margin: 40px 0;
    text-align: center;
}

.offer-section h2 {
    color: white;
    border: none;
    padding: 0;
    margin-bottom: 20px;
}

.price {
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
}

.highlight {
    font-style: italic;
    font-size: 1.2rem;
    margin-top: 20px;
    opacity: 0.95;
}

.closing-section {
    margin: 40px 0;
    text-align: center;
    font-size: 1.15rem;
}

/* CTA */
.cta-section {
    text-align: center;
    margin: 50px 0;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, #c0392b 0%, #e74c3c 100%);
    color: white;
    padding: 20px 40px;
    font-size: 1.3rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(192, 57, 43, 0.3);
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(192, 57, 43, 0.4);
    background: linear-gradient(135deg, #a93226 0%, #cb4335 100%);
}

.payment-info {
    margin-top: 15px;
    color: #7f8c8d;
    font-size: 0.95rem;
}

/* Assinatura */
.signature {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 2px solid #e9ecef;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 20px;
}

.author-photo {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #c0392b;
}

.author-details {
    text-align: left;
}

.author-name {
    font-size: 1.2rem;
    color: #c0392b;
    margin-bottom: 5px;
}

.author-title {
    color: #7f8c8d;
    font-size: 1rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px;
    background: #2c3e50;
    color: white;
    font-size: 0.9rem;
}

/* Responsividade */
@media (max-width: 768px) {
    .letter {
        padding: 40px 30px;
    }
    
    .letter-header h1 {
        font-size: 2rem;
    }
    
    .letter-content {
        font-size: 1rem;
    }
    
    .cta-button {
        padding: 18px 30px;
        font-size: 1.1rem;
    }
    
    .author-info {
        flex-direction: column;
        text-align: center;
    }
    
    .author-details {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        margin: 0;
        box-shadow: none;
    }
    
    .letter {
        padding: 30px 20px;
    }
    
    .letter-header h1 {
        font-size: 1.8rem;
    }
    
    .offer-section,
    .personal-section {
        padding: 25px 20px;
    }
    
    .cta-button {
        width: 100%;
        padding: 16px 20px;
    }
}