body { 
    background-color: #fff0f5; 
    font-family: 'Arial', sans-serif; 
    margin: 0; 
    color: #333; 
}
.nav-bar { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    background: #ffb6c1; 
    padding: 15px 30px; 
    color: white; 
}
.nav-bar a { 
    text-decoration: none; 
    color: white; 
    font-weight: bold; 
}
.message-container { 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    min-height: 85vh; 
    padding: 20px;
}
/* Estilo de la Carta */
.carta-coreana { 
    background: #fffdf9; 
    padding: 40px 50px; 
    border-radius: 12px; 
    box-shadow: 0 8px 25px rgba(255, 182, 193, 0.4); 
    max-width: 600px; 
    text-align: left; 
    border: 1px solid #fce4ec; 
    position: relative;
}
.sello {
    font-size: 2.5rem;
    position: absolute;
    top: 20px;
    right: 30px;
}
.carta-coreana h1 {
    color: #d81b60;
    font-size: 1.8rem;
    margin-bottom: 20px;
}
.carta-texto {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}
.firma {
    margin-top: 30px;
    text-align: right;
    font-weight: bold;
    color: #ff1493;
}
.firma span {
    font-weight: normal;
    color: #666;
    font-size: 0.95rem;
}