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

body{
    font-family: 'Open sans';
    background-image: url(../imagenes/dark-honeycomb.png);
    background-repeat: repeat;
}
header{
    height: 200px;
    background-color: #fff;
    position: relative;
    z-index: 3;
}
.logo{
    background: url(../imagenes/clinica10-degradado.JPG) no-repeat;
    background-size: 400px 150px;
    background-position: 100% 0px; 
    height: 150px;
    bottom: auto;
    width:auto;
}

.logo .logo_img{
float: left;
margin:30px;
width: 110px;

}


.menu_bar{
position: absolute;
width: 100%;
padding:10px;
background-color:#7eb43a;
}

#button-menu{
font-size: 30px;
color:#fff;
cursor: pointer;

}

.navegacion{
    position: absolute;
    top:100%;
    left: 0px;
    width: 0%;
    height: 80vh;
    background: rgba(0,0,0,.3);
    }
    
 .navegacion ul {
width: 320px;
height: 100%;
background: #fff;
list-style: none;
position: absolute;
top: 0;
left:-320px;
transition: left.3s;
 }   

 .navegacion .menu li.title-menu{
padding: 20px;
background: #5f8176;
color: #fff;
text-align: center;
font-size: 22px;

 }

 .navegacion .menu a{
     display: block;
     padding: 20px;
     font-size: 22px;
     border-bottom: 1px solid #c6d0da;
     font-weight:200;
     text-decoration: none;
     color:#575d69;
 }

 .navegacion .menu a:hover{
    background:  #5f8176;
    COLOR: #FFF;
 }

 .navegacion .menu li i.icon-menu{
     margin-right: 12px;
 }

 .navegacion .menu .item-submenu > a::after{
    
    font-family: 'Font Awesome 5 Free';
    font-weight: 900; 
    content: '\f105';
    float: right;
  
 }

 /* Submenus =======*/

 .navegacion .submenu li.title-menu{
     background: #fff;
     color: #575d69;
 }

 .navegacion .submenu li.go-back{
padding: 10px 20px;
background:  #5f8176;
color:#fff;
font-size: 18px;
cursor: pointer;
   }

.navegacion .submenu li.go-back::before{
font-family: 'Font Awesome 5 Free';
font-weight: 900; 
color: #C5C5c5;
content: '\f0d9';   
margin-right: 10px;  
   }

@media screen and (max-width:500px){

    header{
        height: 120px;
        background-color: #fff;
        position: relative;
        z-index: 3;
    }

    .navegacion ul{
           width:100%;
       }

    .logo{
        background-image: none;
        height: 115px;
        display: flex;
        align-items: center;
        justify-content: center;
      
    }
    .logo .logo_img{
        
        width: 80px;
 
        }

    .menu_bar{
    position: absolute;
    width: 100%;
    padding:10px;
    background-color:#7eb43a;
    }

    .navegacion{
        position: absolute;
        top:100%;
        left: 0px;
        width: 0%;
        height: 600px; /* Altura fondo submenú =======*/
        background: rgba(0,0,0,.3);
        }

        .navegacion ul {
            width: 320px;
            height: 100%;
            background: #fff;
            list-style: none;
            position: absolute;
            top: 0;
            left:-340px;
            transition: left.3s;
             }   
            
   
}