@media screen and (min-width: 1600px) and (max-width: 1920px) {
  .big-bg {
      width: 675px;    
            }  
}


@media screen and (min-width: 1368px) and (max-width: 1600px) {
  .big-bg {
      width: 588px;    
            }  
}

@media screen and (min-width: 1200px) and (max-width: 1361px) {
  .big-bg {
      width: 465px;    
            }  
}




@media screen and (min-width: 990px) and (max-width: 1200px) {
    
.heading-titel h2 {  font-size: 50px; }
.heading-titel h2 span {font-size: 50px;}
.heading-titel h3 {
  font-size: 32px;
  line-height: 15px;
  text-align: right;
}
h4 {
  font-size: 31px;
  background-size: 71%;
}
.center span {
  font-size: 16px;
}
.big-bg {
     height: 1041px!important;
    width: 380px;
}
    
}
@media screen and (min-width: 768px) and (max-width: 991px) {    
    
.big-bg {
height: 796px!important;
width: 325px;    
}
.logo {
  width: 48%;
  margin: 19px auto;
}
.logo img{  max-width: 84%;}        
.heading-titel h2 {
  font-size: 39px!important;
  text-align: right;
}
.heading-titel h3 {
  font-size: 26px!important;
  line-height: 15px;
  text-align: right;
}
.heading-titel h2 span {
  font-size: 38px!important;
}

h4 {
  font-size: 31px!important;
  background: none;
  margin: 30px 0px 10px 0px;
}
.col-md-4.col-sm-6.center {
  padding: 10px 0px 11px 46px;
  text-align: center;
  font-weight: 700;
  font-family: 'Roboto Condensed', sans-serif;
}
footer h2 {
    font-size: 29px;
}
footer {
  font-size: 19px;
}        
p.last-sentence {
  font-weight: 700;
  font-size: 30px;
}        
        
        
}
    
    
    
@media only screen and (max-width: 1024px) {

.heading-titel h2 {  font-size: 50px; }
.heading-titel h2 span {font-size: 50px;}
.heading-titel h3 {
  font-size: 32px;
  line-height: 15px;
  text-align: right;
}
h4 {
  font-size: 31px;
  background-size: 71%;
}
.center span {
  font-size: 16px;
}
.big-bg {
  height: 1217px;
}
}
@media only screen and (max-width: 768px) {
.logo {
    width: 60%; }
.heading-titel h3 {
  font-size: 27px;
  line-height: 0px;
}
h4 {
  background-size: 90%;
}   
   
}

@media only screen and (max-width: 766px) {
.img-portfolio {
  margin: 0px auto;}
    
  .big-bg {
  display: none;
}   

p.last-sentence {
  font-size: 40px;
}
.heading-titel h2 {text-align: center;}    
.heading-titel h3 {text-align: center;}   
.logo {
  width: 50%;
}    
}
@media only screen and (max-width: 420px) {
.col-xs-6 {
  width: 100%;
}    
.logo {
  width: 80%;
}
    .logo img{max-width: 100%;}    
    .heading-titel h2 {
  font-size: 37px;
}
.heading-titel h2 span {
  font-size: 35px;
}
.heading-titel h3 {
  font-size: 20px;
}
h4 {
  background: none;
}
footer h2 {
  font-size: 50px;
}    
p.last-sentence {
  font-size: 30px;
} 
.col-md-4.col-sm-6.center {
    padding: 15px;}    
}

@media only screen and (max-width: 375px) {.heading-titel h2 {
  font-size: 26px;
}
.heading-titel h2 span {
  font-size: 27px;
}
.heading-titel h3 {
  font-size: 16px;
}
h4 {
  font-size: 27px;
  margin-bottom: 0;
}
footer h2 {
  font-size: 37px;
}
p.last-sentence {
  font-size: 26px;
}    
}