body {
  color: #7f7f7f;
  font-family: 'Source Sans Pro', sans-serif;
  font-size: clamp(12px, 1.5vw, 14px);
  background: #f1f1f1;
  text-align: center;
  margin: 0;
  padding: 0;
}

h1, h2 {
  font-family: 'Patua One', sans-serif;
  color: #646464;
}

h1 {
  font-size: clamp(20px, 3vw, 28px);
}

h2 {
  font-size: clamp(14px, 2vw, 18px);
  padding-top: 5px;
}

hr {
  border: 0;
  border-bottom: 4px solid #eeeedd;
}

em {
  font-style: normal;
  font-weight: bold;
}

a {
  color: #646464;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/*Layout*/

.all {
  max-width: 800px;
  margin: 0 auto 20px;
  background: #fff;
  text-align: left;
  box-shadow: 5px 10px 20px #888;
}

.bottom {
  height: 15px;
}

.header {
  height: 50px;
  background: #fff;
  text-align: left;
  padding: 5px 0 0 10px;
}

.header a {
  color: #646464;
}

/*Desktop Menu*/

.menu {
  float: left;
}

.sub_menu {
  padding-left: 10px;
  text-align: left;
  width: 155px;
  margin: 25px 15px 45px 0;
}

.sub_menu > a {
  display: block;
  color: #646464;
  text-decoration: none;
  padding: 3px 10px 3px 5px;
  border-top: 2px solid #eeeedd;
}

.sub_menu > a:hover {
  background: #f8f8f0;
}

/*Mobile Menu*/

.burger {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: #646464;
  position: fixed;
  top: 10px;
  right: 20px;
  z-index: 1001;
  cursor: pointer;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 100vw;
  background: #fff;
  z-index: 1000;
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  font-size: 1.2rem;
  color: #646464;
  text-decoration: none;
}

/*main*/

.content {
  min-height: 600px;
  line-height: 1.6;
  margin-left: 200px;
  padding-right: 15px;
}

.publication {
  margin: 10px 0;
  padding: 2px;
  background: #f8f8f0;
  border: 2px solid #eeeedd;
}

.print {
  float: right;
  margin: 0 10px 0 0;
}

/*Lists*/

ul {
  line-height: 210%;
  padding-left: 20px;
  margin: 0;
}

li {
  margin-left: -30px;
}

ol, p {
  margin: 0;
}

.doi {
  color: #2B5573;
}

.doi a {
  color: #2B5573;
  text-decoration: none;
}

.papertitle {
  color: #f29400;
}

/*Print Style*/

@media print {
  .menu {
    display: none;
  }

  .content {
    margin: 0;
  }

  body {
    font-family: "Latin Modern Roman", Arial, Helvetica, sans-serif;
    color: black;
  }

  .all {
    box-shadow: none;
    width: auto;
  }

  a {
    color: inherit;
  }
}

/*Responsive Layout*/

@media (max-width: 768px) {
  .burger {
    display: block;
  }

  .sub_menu {
    display: none !important;
  }

  .content {
    margin: 0;
    padding: 0 1rem;
  }

  .all {
    width: 95%;
    box-shadow: none;
  }

  ul {
    padding-left: 1.2rem;
  }

  li {
    margin-left: 0;
  }

  .publication {
    word-break: break-word;
  }
}


    .burger {
      display: none;
      background: none;
      border: none;
      font-size: 2rem;
      color: #646464;
      position: fixed;
      top: 10px;
      right: 20px;
      z-index: 1001;
      cursor: pointer;
    }

    .mobile-menu {
      display: none;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 1.5rem;
      position: fixed;
      top: 0;
      left: 0;
      height: 100vh;
      width: 100vw;
      background: #fff;
      z-index: 1000;
    }

    .mobile-menu.active {
      display: flex;
    }

    .mobile-menu a {
      font-size: 1.2rem;
      color: #646464;
      text-decoration: none;
    }

    @media (max-width: 768px) {
      .burger {
        display: block;
      }

      .sub_menu {
        display: none !important;
      }
    }