.nc-container {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 800px;
    padding: 30px;
    margin: 20px 0;
}

.nc-container h1 {
    text-align: center;
    color: #6a11cb;
    margin-bottom: 20px;
    font-size: 2.2rem;
}

.nc-container h2 {
    color: #2575fc;
    margin: 25px 0 15px;
    border-bottom: 2px solid #eee;
    padding-bottom: 8px;
}

.nc-container h3 {
    color: #3d5afe;
    margin: 20px 0 12px;
}

.nc-container h4 {
    color: #3d5afe;
    margin: 15px 0 10px;
}

.nc-container p {
    line-height: 1.6;
    margin-bottom: 15px;
}

.nc-form-group {
    margin-bottom: 20px;
}

.nc-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #444;
    text-align: center;
    
}

.nc-form-group input[type="text"] {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
    text-align: center;
}

.nc-form-group input[type="text"]:focus {
    border-color: #6a11cb;
    outline: none;
}

.nc-form-group button {
    background: linear-gradient(to right, #6a11cb, #2575fc);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 12px 25px;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    font-weight: 600;
}

.nc-form-group button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.nc-resultado {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    margin-top: 30px;
    border-left: 5px solid #6a11cb;
}

.nc-numero-expressao {
    font-size: 2rem;
    font-weight: bold;
    color: #6a11cb;
    text-align: center;
    margin: 15px 0;
}

.nc-interpretacao {
    background: #eef4ff;
    padding: 15px;
    border-radius: 8px;
    margin: 15px 0;
}

.nc-parte-nome {
    margin-bottom: 20px;
    padding: 15px;
    background: #f0f8ff;
    border-radius: 8px;
}

.nc-letras {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 10px 0;
}

.nc-letra {
    display: inline-block;
    width: 40px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    background: #6a11cb;
    color: white;
    border-radius: 50%;
    font-weight: bold;
}

.nc-numero-letra {
    display: inline-block;
    width: 40px;
    height: 40px;
    text-align: center;
    line-height: 40px;
    background: #2575fc;
    color: white;
    border-radius: 50%;
    font-weight: bold;
}

.nc-soma {
    font-weight: bold;
    margin-top: 10px;
    color: #444;
}

#nc-carregando {
    text-align: center;
    font-weight: bold;
    color: #6a11cb;
    margin: 20px 0;
}

@media (max-width: 600px) {
    .nc-container {
        padding: 20px;
    }
    
    .nc-container h1 {
        font-size: 1.8rem;
    }
    
    .nc-letra, .nc-numero-letra {
        width: 35px;
        height: 35px;
        line-height: 35px;
    }
}