body {
    background-color: #f4f8ed;
    max-width: 1000px;
    margin: 0 auto;
}

header {
    display: block;
    background-image: url("img/header.svg");
    background-size: 60%;
    background-repeat: no-repeat;
    background-position: top left;
    margin: 20px 0 0 20px;
    height: min(calc(100vw * 0.1), 80px);
    position: relative;
}

#tagline {
    padding-left: 40px;
}

#tagline p {
    color: rgb(104, 104, 104);
    font-family: 'Crimson Text', serif;
    font-size: 0.81em;
    line-height: 1.2em;
    margin: 0;
}

header p:first-of-type {
    font-weight: bolder;
    margin-bottom: 3px;
}

nav a {
    display: block;
    height: 35px;
    margin-bottom: 10px;
}
nav a img {
    height: 100%;
    width: auto;
}

main {
  font-family: 'Crimson Text', serif;
}

main#splash {
    position: relative;
    display: block;
    height: max(calc(100vh - 300px), 600px);
    width: 100%;
    opacity: 0.5;
    background-image: url(img/braincloud.svg);
    background-position: top center;
    background-repeat: no-repeat;
    background-size: 70%;
    z-index: -10000;
}

main#content {
  padding: 30px;
  margin-left: 200px;
}

#contact-links {
  display: table;
  border-spacing: 20px;

}

.contact-element{
  display: table-row;
  margin-bottom: 20px;
}

.contact-element a {
  display: table-cell;
  height: 30px;
  padding-left: 40px;
  background-size: 30px;
  background-repeat: no-repeat;
  background-position: left;
  vertical-align: middle;

}
.contact-element.email a {
  background-image: url("img/email.svg");
}
.contact-element.instagram a {
  background-image: url("img/instagram.svg");
}
.contact-element.linkedin a {
  background-image: url("img/linkedin.svg");
}
.contact-element.orcid a {
  background-image: url("https://upload.wikimedia.org/wikipedia/commons/0/06/ORCID_iD.svg");
}
.contact-element.researchgate a {
  background-image: url("img/researchgate.svg");
}

#profilepic {
  float:right;
  width: 200px;
  margin-left: 15px;
}


@import url("https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap");

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

.html {
  font-size: 62.5%;
}

body {
  font-family: "Poppins", sans-serif;
}

header a {
  position: relative;
  width: calc(100% - 50px);
  height: 100%;
  display: inline-block;
  margin-left: 50px;
  z-index: 1000;
}

/* desktop mode............/// */

.navbar input[type="checkbox"],
.navbar .hamburger-lines {
  display: none;
}

.navbar {
    margin-top: 20px;
    float: left;
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  height: 64px;
}

.menu-items {
  order: 2;
  display: flex;
  flex-direction: column;
}

.menu-items li {
  list-style: none;
  margin-left: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.menu-items a {
  text-decoration: none;
  color: #444;
  font-weight: 500;
  transition: color 0.3s ease-in-out;
}

.menu-items a:hover {
  color: #117964;
  transition: color 0.3s ease-in-out;
}

.logo {
  order: 1;
  font-size: 2.3rem;
  margin-bottom: 0.5rem;
}

@media (max-width: 460px) {
  #profilepic {
    float:none;
    width: 100%;
    margin-left: 0;
    margin-bottom: 15px;
  }
}


@media (max-width: 768px) {
  .navbar {
    position: fixed;
    width: 100%;
    opacity: 0.95;
    top: 0;
    z-index: 12;
    margin-top: 0;
  }
  
    #tagline {
        padding-left: 20px;
    }

  header {
      background-position-x: 80px;
  }

  .navbar-container input[type="checkbox"],
  .navbar-container .hamburger-lines {
    display: block;
    cursor: pointer;
  }

  .navbar-container {
    display: block;
    position: relative;
    height: 64px;
  }

  .navbar-container input[type="checkbox"] {
    position: absolute;
    display: block;
    height: 32px;
    width: 30px;
    top: 20px;
    left: 20px;
    z-index: 5;
    opacity: 0;
  }

  .navbar-container .hamburger-lines {
    display: block;
    height: 23px;
    width: 35px;
    position: absolute;
    top: 17px;
    left: 20px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .navbar-container .hamburger-lines .line {
    display: block;
    height: 4px;
    width: 100%;
    border-radius: 10px;
    background: #333;
  }

  .navbar-container .hamburger-lines .line1 {
    transform-origin: 0% 0%;
    transition: transform 0.4s ease-in-out;
  }

  .navbar-container .hamburger-lines .line2 {
    transition: transform 0.2s ease-in-out;
  }

  .navbar-container .hamburger-lines .line3 {
    transform-origin: 0% 100%;
    transition: transform 0.4s ease-in-out;
  }

  .navbar .menu-items {
    padding-top: 100px;
    background: #fff;
    height: 100vh;
    max-width: 300px;
    transform: translate(-150%);
    display: flex;
    flex-direction: column;
    margin-left: -40px;
    padding-left: 50px;
    transition: transform 0.5s ease-in-out;
  }

  .navbar .menu-items li {
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: 500;
  }

  .navbar-container input[type="checkbox"]:checked ~ .menu-items {
    transform: translateX(0);
  }

  .navbar-container input[type="checkbox"]:checked ~ .hamburger-lines .line1 {
    transform: rotate(35deg);
  }

  .navbar-container input[type="checkbox"]:checked ~ .hamburger-lines .line2 {
    transform: scaleY(0);
  }

  .navbar-container input[type="checkbox"]:checked ~ .hamburger-lines .line3 {
    transform: rotate(-35deg);
  }

  main#content {
    margin-left: 0;
  }
}