* {
    box-sizing: border-box;
  }

body {
    font-family: 'Roboto', sans-serif;
    min-height: 75rem;
    border-top: 10px solid #000;
}

html {
    scroll-behavior: smooth;
  }

h1,h2,h3,h4,h5,h6 {
    font-family: 'Roboto', sans-serif;
}

h1.logo {
    font-weight: 700;
    text-align: center;
    margin: 0;
}

#logo-size {
    width: 500px;
    max-width: 100%
}

p {
    font-size: 12px;
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
}


hr {
    border-color: #000;
    border-width: 1px;
}

.content-spacing {
    padding-top: 50px;
    padding-bottom: 50px;
}


.underline > span {
    display: inline-block;
    border-bottom: 3px solid #000;
    font-weight: 700;
    line-height: 1em;
    letter-spacing: .1em;
    padding-bottom: .125em;
    text-transform: uppercase;
}

#logo {
    margin-top: 60px;
    margin-bottom: 10px;
}

.toggler-center {
    justify-content: center;
}

.bg-light {
    background-color: transparent !important;
}

.border-styling {
    margin-top: 40px;
}

.btn {
    border-radius: 0px;
    font-size: 14px;
}

.short-line {
    max-width: 40px;
    border-width: 2px;
}

.bold-underline {
    text-decoration: none;
    background-image: linear-gradient(rgb(189, 217, 215), rgb(189, 217, 215));
    background-size: 100% 20px;
    background-position: 0 88%;
    background-repeat: no-repeat;
}

/* Header Section */


.cover-container {
    max-width: 80%;
    margin: 0 auto;
}


.content {
    margin-top: 20rem;
}

.container-arrow {
    margin-top: 20rem;
}

.h1-header {
    font-size: 84px;
    font-weight: 700;
}

.h2-header {
    font-size: 38px;
    line-height: 3.5rem;
}

.p-header {
    font-size: 18px;
    font-weight: 500;
}

.arrow {
    text-align: center;
    margin: 2% 0;
  }

  .arrow a {
    color: black;
    text-decoration: none;
  }

  .arrow a:hover {
    color: #BDD9D7;
    text-decoration: none;
  }

  .bounce {
    -moz-animation: bounce 2s infinite;
    -webkit-animation: bounce 2s infinite;
    animation: bounce 2s infinite;
  }
  
  @keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
      transform: translateY(0);
    }
    40% {
      transform: translateY(-30px);
    }
    60% {
      transform: translateY(-15px);
    }
  }

  @media screen and (max-width: 1550px) {
    .h1-header {
        font-size: 76px;
    }
    
    .h2-header {
        font-size: 30px;
        line-height: 3rem;
    }

    .content {
        margin-top: 7rem;
    }

    .container-arrow {
        margin-top: 6rem;
    }
    
    .cover-container {
        max-width: 80%;
        margin: 0 auto;
    }

    }

    @media screen and (max-width: 500px) {
        .h1-header {
            font-size: 66px;
        }
        
        .h2-header {
            font-size: 22px;
            line-height: 2rem;
        }
    
        .content {
            margin-top: 7rem;
        }
    
        .container-arrow {
            margin-top: 6rem;
        }
        
        .cover-container {
            max-width: 80%;
            margin: 0 auto;
        }
    
        }   



/* Navbar */

.navbar {
    margin-top: 3rem;
    padding: 0;
}

.nav-link {
    color: #000 !important;
    text-transform: uppercase;
    padding: 0;
    font-weight: 600;
}

.navbar-nav .nav-link {
    font-size: 20px;
    letter-spacing: 0.05rem;
}

.navbar-nav .nav-link:hover {
    color: #BDD9D7 !important;
    text-decoration: none;
} 


  .navbar .navbar-collapse {
    text-align: center;
  }

 
.navbar-brand {
    margin-right: 0;
}
    
.logo {
    width: 100px;
}

.active {
    font-weight: 600;
}

.dropdown-menu {
    border: none;
}

 .dropdown-item {
     font-size: 14px;
     letter-spacing: 0.04rem;
     text-transform: uppercase;
}

 .dropdown-item:hover {
     color: #BDD9D7;
}

/* navbar toggler */

.navbar-toggler {
    width: 20px;
    height: 20px;
    position: relative;
    transition: .5s ease-in-out;
}

.navbar-toggler,
.navbar-toggler:focus,
.navbar-toggler:active,
.navbar-toggler-icon:focus {
    outline: none;
    box-shadow: none;
    border: 0;
    position: relative;
}

.navbar-toggler span {
    margin: 0;
    padding: 0;
}

.toggler-icon {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: #000;
    border-radius: 1px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: .25s ease-in-out;
}

.middle-bar {
    margin-top: 0px;
}


/* State when the navbar is collapsed */

.navbar-toggler.collapsed .top-bar {
    position: absolute;
    top: 0px;
    transform: rotate(0deg);
}

.navbar-toggler.collapsed .middle-bar {
    opacity: 1;
    position: absolute;
    top: 10px;
    filter: alpha(opacity=100);
}

.navbar-toggler.collapsed .bottom-bar {
    position: absolute;
    top: 20px;
    transform: rotate(0deg);
}

/* when navigation is clicked */

.navbar-toggler .top-bar {
    top: inherit;
    transform: rotate(135deg);
}

.navbar-toggler .middle-bar {
    opacity: 0;
    top: inherit;
    filter: alpha(opacity=0);
}

.navbar-toggler .bottom-bar {
    top: inherit;
    transform: rotate(-135deg);
}

/* Color of 3 lines */

.navbar-toggler.collapsed .toggler-icon {
    background: linear-gradient( 263deg, rgba(0,0,0) 0%, rgba(0, 0, 0) 100% );
}



@media screen and (max-width: 991px) {
    .navbar-nav .nav-link:hover {
        background-image:none;
    }   
}

@media (max-width: 992px){
    .nav-item {
        padding-bottom: 1.7rem;
    }

    .dropdown-item {
        text-align: center;
   }

   .logo {
    margin-top: 2.5rem;
    margin-bottom: 2.5rem;
    width: 60px;
}
}


/* Projects*/

.projects {
    padding: 50px;
    margin-top: 50px;
    margin-bottom: 50px;
}

h5.project-description {
    font-weight: 700;
}

.btn-outline-dark {
    border: 2px solid;
}


#myBtn {
  display: none; /* Hidden by default */
  position: fixed; /* Fixed/sticky position */
  bottom: 80px; /* Place the button at the bottom of the page */
  right: 30px; /* Place the button 30px from the right */
  z-index: 99; /* Make sure it does not overlap */
  border: 2px solid; /* Border */
  outline: none; /* Remove outline */
  background-color: white; /* Set a background color */
  color: black; /* Text color */
  cursor: pointer; /* Add a mouse pointer on hover */
  padding: 8px; /* Some padding */
  border-radius: 0px; /* Rounded corners */
  font-size: 16px; /* Increase font size */
}

#myBtn:hover {
  background-color: #000; /* hover */
    color: white;
    border: black 2px solid;
}

a.infolink {
    color: black;
    font-weight: 700;
    text-decoration: underline;
}

a.infolink:hover {
    color: #e2e2df;
    font-weight: 700;
}

@media screen and (max-width:767px) {

#myBtn {
  bottom: 120px; /* Place the button at the bottom of the page */
  padding: 7px; /* Some padding */
  font-size: 12px; /* Increase font size */
}

.mtop {
        margin-top: 30px;
    }
    
}

/*section portfolio*/

#portfolio {
    margin-top: 100px;
    margin-bottom: 100px;
}

.container-overlay {
    position: relative;
    width: 40%;
    margin: 10px;
}

.img-fluid {
  display: block;
  width: 100%;
  height: auto;
}

.overlay {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100%;
    width: 100%;
  opacity: 0;
  transition: .5s ease;
  background-color: #e2e2dfd9;
}

.container-overlay:hover .overlay {
  opacity: 1;
}

.portfolio-text {
  color: white;
  font-size: 19px;
    line-height: 1.8;
  position: absolute;
  top: 50%;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  text-align: center;
}

.overlay a {
    text-transform: uppercase;
    color: #000;
    text-decoration: none;
}


.underline-portfolio > span {
    display: inline-block;
    border-bottom: 3px solid #000;
    font-weight: 700;
    line-height: 1em;
    letter-spacing: .03em;
    padding-bottom: .125em;
    text-transform: uppercase;
}


@media screen and (max-width:767px) {
    
.underline-portfolio > span {
    display: inline-block;
    border-bottom: 2px solid #000;
    font-weight: 700;
    line-height: 1em;
    letter-spacing: .03em;
    padding-bottom: .125em;
    text-transform: uppercase;
    font-size: 18px;
}
    
.container-overlay {
    position: relative;
    width: 90%;
    margin: 20px;
}
    
}

/*section features*/

#features {
    background-color: #BDD9D7;
    padding-top: 60px;
    padding-bottom: 120px;
}


.img-center {
    display: block;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 10px;
    width: 50%;
    
}

.features {
    margin-top: 50px;
    margin-bottom: 30px;
}

h5.underline > span {
    display: inline-block;
    border-bottom: 3px solid #000;
    font-weight: 700;
    line-height: 1em;
    letter-spacing: .03em;
    padding-bottom: .125em;
    text-transform: uppercase;
    font-size: 20px;
}

p.features {
    margin-top: 15px;
    text-align: center;
    font-size: 16px;
}

/* Info section */


#info {
    margin-bottom: 80px;
}

#img-info {
    margin-top: 50px;
    margin-bottom: 30px;
}

.responsive {
  width: 100%;
  height: auto;
}

.bg-grey {
    background-color: #e2e2df;
}

.info-box {
    margin-top: 50px;
}

.info-text {
    margin: auto;
    padding: 3rem;
    height: auto;

}

h4.info {
    color: #000;
    font-size: 22px;
    font-weight: 700;
    margin: 0;
}

h5.info {
    color: #000;
    font-size: 18px;
    padding-top: 5px;
}

p.info {
    color: #000;
    margin-top: 25px;
    font-size: 15px;
    line-height: 1.8;
    margin: 0;
}

.short-line-info {
    max-width: 40px;
    border-width: 2px;
    border-color: #000;
}


.btn-dark {
    font-size: 16px;
    letter-spacing: 0.1rem;
    border: 2px solid;
    background-color: black;
    padding: 12px 20px 12px 20px ;
}

.btn-dark:hover {
    border: 2px solid black;
    color: black;
    background-color: white;

}


@media screen and (max-width: 1200px) {
     
#img-info {
    margin-top: 50px;
    margin-bottom: 0;
}
    
.info-box {
    margin-top: 30px;
    margin-bottom: 30px;
}
    
h1.underline > span {
    display: inline-block;
    border-bottom: 3px solid #000;
    font-weight: 700;
    line-height: 1em;
    letter-spacing: .03em;
    padding-bottom: .125em;
    text-transform: uppercase;
    font-size: 24px;
}

h5.info-size {
    font-size: 16px;
}
    
p.info-size {
     font-size: 10px;
}

}


/* Section contact */

#contact {
    padding-top: 100px;
    padding-bottom: 150px;
    background-color: #BDD9D7;
}


a.mail:link {
    color: black;
    font-weight: 700;
    font-size: 20px;
}

a.mail:hover {
    color:white;
    text-decoration: none;
}

.fa-envelope-o {
    padding-top: 20px;
    padding-bottom: 10px;
    color: white;
}


.zoom:hover {
    -ms-transform: scale(1.5); /* IE 9 */
    -webkit-transform: scale(1.5); /* Safari 3-8 */
    transform: scale(1.2); 
    color:white;
    text-decoration: none;
}




h5.contact {
    margin-top: 30px;
    font-size: 22px;
}



/* impressum */


#impressum-head{
    margin-top: 100px;
    margin-bottom: 50px;
}



h5.impressum {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
}

h6.impressum {
    font-size: 16px;
    margin-bottom: 15px;
}

p.impressum {
     line-height: 1.9;
}



/* footer */

footer {
	position: fixed;
    bottom: 0;
    width: 100%;
    height: 60px;
  	background-color: #000;
	z-index: 900;	
}
 

.footer-copyright {
	color: #FFFFFF;
	font-size: 12px;
	text-align:center;
	margin-top: 22px;
}

.footer-impressum {
	color: #FFFFFF;
	font-size: 12px;
	text-align:center;
	margin-top: 22px;
    font-weight: 700;
}

a.footer-text {
	color: #FFFFFF;
}

a.footer-text:hover {
	color: #FFFFFF;
}

@media screen and (max-width:767px) {
    
footer {
    width: 100%;
    height: 50px;
  	background-color: #000;
}

#impressum {
    margin-top: 50px;
}
    
footer {
    height: 90px;
}
    
.footer-copyright {
	margin-top: 25px;
    margin-bottom: 5px;
}

.footer-impressum {
	margin-top: 0px;
}
    
}