:root {
  --ms-blue: #18b8e1;
  --ms-dark-blue: #007795;

  --ms-green: #009122;
  --ms-dark-green: #005614;

}

* {
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
}

.primary {
  color: var(--ms-green);
}
h1, h2 {
  font-family: 'Roboto Condensed', sans-serif;
}

h1 {
  font-size: 3.5rem; 
}

h4 {
  font-size: 1.2rem;
}

h4 span {
  font-size: 1.2rem;
}

.dark-bg {
  background-image: url('../img/dark-bg.jpg');
  background-size: cover;
  background-position: center;
}

.btn {
  font-family: 'Roboto Condensed', sans-serif;
  text-transform: uppercase;
}

.btn.btn-primary {
  background-image: linear-gradient(var(--ms-green), var(--ms-dark-green)) ;
  border-color: var(--ms-green);
}


.btn.btn.btn-primary:hover, .btn.btn-primary:active,  .btn.btn-primary:focus {
  background-color: var(--ms-dark-green) ;
  background-image: none;
  outline: 0 ;
  border-color: var(--ms-dark-green);
}

.btn-secondary {
  background-image: linear-gradient(var(--ms-blue), var(--ms-dark-blue)) ;
  border-color: var(--ms-blue);
}

.btn.btn.btn-secondary:hover, .btn .btn-secondary:active, .btn .btn-secondary:focus {
  background-image: linear-gradient(var(--ms-dark-blue), var(--ms-blue)) ;
  outline: 0 ;
  background: var(--ms-dark-blue);

}

.navbar-nav .nav-link {
    border-bottom: 2px solid transparent;
    display: block;
    padding: 0 12px;
      padding-right: 12px;
      padding-left: 12px;
    color: #009122;
    font-size: 19px;
    text-transform: uppercase;
    font-family: 'Roboto Condensed', sans-serif;
}

.navbar-nav .nav-link:hover, .navbar-nav .nav-link.active {
  border-color: #009122;
  color: #009122;
}

.navbar-brand {
  padding: 0;
  margin: 0;
}

.navbar-brand > img {
  max-height: 80px;width:auto;height:auto;
}

.spacer {
  height: 60px;
}

.hero {
    background-image: url(../img/background.jpg);
    background-position: center;
    background-size: cover;
    position: relative;
    z-index: 1;
    color: #fff;
}

.hero::before {
    content: " ";
    position: absolute;
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    background-color: #0007;
    z-index: -1;
}

.abstract {
    background-image: url('../img/abstract.jpg');
    position: relative;
    background-size: cover;
    z-index: 1;
}
.abstract::before {
    content: ' ';
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    position: absolute;
    background-color: #ffffffcf;
    z-index: -1;
}

.img-zoom {
  overflow: hidden;
}

.img-zoom > img {
  transition: .5s all;
}


.img-zoom:hover > img {
  transform: scale(1.1);
  transition: .5s all;
}

figure {
  border: 1px solid #ddd;
  padding: 1rem;
  height: 100%;
  box-shadow: 0 0 5px #ddd;
}
.contactus-section{position:relative;}
.contactus-section .contact-bg{position: absolute;left: 0;top: 0;width: 100%;height: 100%;background: #fff;opacity: 0.8;z-index:1;}
.contactus-section .container{position:relative;z-index:2;}
.contactus-section .footer-social a {
  color: #000;
  margin-bottom: 10px;
  display: inline-block;
  font-size: 26px;
}
.footer-social a:hover {
  color: var(--ms-green);
}
.footer-social a {
  font-size: 23px;
  color: #fff;
  padding: 5px 10px;
}
.header-social a {
  font-size: 20px;
  padding: 5px;
  color: #009122;
}

footer {
  background: #141414;
  padding-top: 1rem;
  padding-bottom: 1rem;
  color: #fff;
}
.footer-link {
  color: var(--ms-green);
  text-decoration: none;
}

.footer-link:hover {
  color: var(--ms-dark-green);
}
footer .py-1 a {
  color: #009122;
  text-decoration: none;
}


@media screen and (max-width: 800px) {

  .logo {
    width: 80%;
  }
  h1 {
    font-size: 2.5rem; 
  }
  
  h4 {
    font-size: 1rem;
  }
  
  h4 span {
    font-size: 1rem;
  }
}