.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  color: white;
  padding: 10px 0;
  z-index: 1000;
  display: none;
}

@media screen and (max-width: 430px){
  .navbar {
    display: block;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
  }
}

@media screen and (min-width: 431px) and (max-width: 820px){
  .navbar {
    display: block;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
    padding-right: 26px;
    padding-left: 44px;
  }
}

.contact-us {
  background-color: #414142;
  border-radius: 30px;
  width: fit-content;
  height: 32px;
  margin-top: 16px;
  margin-right: 8px;
  outline: none;
  border: none;
}
.contact-us a {
  color: #ffffff;
  font-family: "Poppins", Helvetica;
  font-size: 10px;
  position: relative;
  top: -2px;
}

@media screen and (min-width: 431px) and (max-width: 820px){
  .contact-us {
    min-width: max-content;
    min-height: 38px;
    margin-right: 16px;
  }
  .contact-us a {
    font-size: 14px;
  }
}

.navbar-double { display: flex; }

.dropbtn {
  background-color: transparent;
  padding: 16px;
  font-size: 16px;
  border: none;
  cursor: pointer;
  width: 100%;
  z-index: 10;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-content {
  margin-top: 74px;
  height: 0%;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background-color: #ffffff;
  min-width: 100%;
  overflow: auto;
  box-shadow: 0px 6px 4px 0px rgba(0,0,0,0.2);
  z-index: 1;
  border-radius: 0 0 16px 16px;
  text-align: center;
  font-family: "Poppins", Helvetica;
  color: #414142;
  transition: 0.2s;
}

.dropdown-content a {
  color: #a1a1a1;
  padding: 22px 16px;
  text-decoration: none;
  display: block;
  font-size: 24px;
}
.dropdown-content a:first-child {
  border-top: solid 1px #414142;
  width: 70%;
  margin: 0 auto;
  padding-top: 40px;
  text-decoration: none;
  display: block;
}
.dropdown a:hover { background-color: #ddd; }
.show { height: 788%; }

.navbar .nav-container {
  display: flex;
  justify-content: space-between;
  padding-top: 2px;
  padding-left: 60px;
  cursor: pointer;
  padding-right: 36px;
}

.bar1, .bar2, .bar3 {
  width: 30px;
  height: 3px;
  background-color: #414142;
  margin: 6px 0;
  transition: 0.4s;
  z-index: 0;
}
.change .bar1 { transform: translate(0, 7px) rotate(-45deg); }
.change .bar2 { opacity: 0; }
.change .bar3 { transform: translate(0, -11px) rotate(45deg); }

.navbar-logo {
  margin-left: 0;
  padding-top: 16px;
}
.navbar-logo svg { width: 32px; height: 32px; }
.navbar-logo path { fill: #0087ca; }

.nav-link {
  color: white;
  text-decoration: none;
  padding: 10px 8px;
}
.nav-link:hover {
  background-color: #555;
  border-radius: 5px;
}

.bg {
  width: 40%;
  position: absolute;
  top: -20px;
  right: 0;
  z-index: -1;
}

@media screen and (max-width: 430px){
  .bg { width: 70%; top: 0; }
}

@media screen and (min-width: 431px) and (max-width: 820px){
  .bg { width: 54%; top: 10px; }
}

.container {
  position: relative;
  width: 100%;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
  z-index: 1;
}

@media screen and (max-width: 430px){
  body .container {
    overflow: hidden;
    padding: 0 30px;
  }
}

.close {
  margin-top: 80px;
  display: block;
}
.close path, .close svg {
  transition: width 0.1s ease-in, height 0.1s ease-in, fill 0.1s ease-in;
}
.close:hover path { fill: #0087ca; }
.close:hover svg { width: 26px; height: 26px; }

@media screen and (max-width: 430px){
  .close { display: none; }
}
@media screen and (min-width: 431px) and (max-width: 820px){
  .close { display: none; }
}

.rp-header {
  font-family: "Poppins", Helvetica;
  font-weight: 700;
  color: #0087ca;
  font-size: 70px;
  margin-left: 100px;
  margin-bottom: 40px;
  margin-top: 40px;
}

@media screen and (max-width: 430px){
  .rp-header {
    font-size: 44px;
    margin-left: 28px;
    margin-bottom: 0;
    margin-top: 160px;
  }
}

@media screen and (min-width: 431px) and (max-width: 820px){
  .rp-header {
    font-size: 54px;
    margin-left: 40px;
    margin-bottom: 0;
    margin-top: 160px;
  }
}

.intro-block {
  margin: 30px 100px 40px 100px;
}

@media screen and (max-width: 430px){
  .intro-block {
    margin: 30px 28px 30px 28px;
  }
}

@media screen and (min-width: 431px) and (max-width: 820px){
  .intro-block {
    margin: 30px 40px 30px 40px;
  }
}

.intro-paragraph {
  font-family: "Poppins", Helvetica;
  color: #414142;
  font-size: 16px;
  line-height: 1.7;
  text-align: justify;
}

@media screen and (max-width: 430px){
  .intro-paragraph {
    font-size: 14px;
    line-height: 1.6;
  }
}

.rp-subheader {
  font-family: "Poppins", Helvetica;
  font-weight: 800;
  color: #0087ca;
  font-size: 32px;
  margin-left: 100px;
  margin-top: 40px;
  margin-bottom: 20px;
}

@media screen and (max-width: 430px){
  .rp-subheader {
    font-size: 24px;
    margin-left: 28px;
    margin-top: 20px;
    margin-bottom: 14px;
  }
}

@media screen and (min-width: 431px) and (max-width: 820px){
  .rp-subheader {
    font-size: 28px;
    margin-left: 40px;
  }
}

.rp-table-wrap {
  margin: 0 100px 40px 100px;
  overflow-x: auto;
  border-radius: 10px;
  border: 2px solid #0087ca;
}

@media screen and (max-width: 430px){
  .rp-table-wrap {
    margin: 0 14px 30px 14px;
  }
}

@media screen and (min-width: 431px) and (max-width: 820px){
  .rp-table-wrap {
    margin: 0 30px 30px 30px;
  }
}

.rp-table {
  width: 100%;
  border-collapse: collapse;
  font-family: "Poppins", Helvetica;
  background-color: #ffffff;
  min-width: 720px;
}

.rp-table thead tr {
  background-color: #0087ca;
  color: #ffffff;
}

.rp-table th {
  padding: 16px 14px;
  font-weight: 700;
  font-size: 15px;
  text-align: left;
  border-bottom: 2px solid #0087ca;
}

.rp-table td {
  padding: 14px;
  font-size: 14px;
  color: #414142;
  border-bottom: 1px solid #e7e7e7;
  vertical-align: top;
  line-height: 1.55;
}

.rp-table tbody tr:last-child td {
  border-bottom: none;
}

.rp-table tbody tr:nth-child(even) {
  background-color: #f7fbfd;
}

.rp-table tbody tr:hover {
  background-color: #eaf6fc;
}

.col-area { width: 18%; font-weight: 600; }
.col-topic { width: 55%; }
.col-researcher { width: 19%; }
.col-year { width: 8%; text-align: center; }

.rp-table .col-year, .rp-table td:last-child {
  text-align: center;
  font-weight: 600;
  color: #0087ca;
}

@media screen and (max-width: 430px){
  .rp-table th { font-size: 13px; padding: 12px 10px; }
  .rp-table td { font-size: 12.5px; padding: 12px 10px; }
}

.down-bottom {
  display: flex;
  align-items: center;
  flex-direction: column;
  margin-top: 60px;
}
.down-bottom button {
  color: white;
  background-color: #414142;
  font-family: "Poppins";
  outline: none;
  border: none;
  border-radius: 30px;
  width: 250px;
  height: 58px;
  margin-bottom: 80px;
  transition: background-color 0.1s ease-in, width 0.1s ease-in, height 0.1s ease-in, font-weight 0.1s ease-in;
}
.down-bottom a {
  margin-bottom: 80px;
}
.down-bottom button:hover {
  background-color: #0087ca;
  width: 254px;
  height: 60px;
  font-weight: 700;
}

@media screen and (max-width: 430px){
  .back-arrow { display: none; }
}
@media screen and (min-width: 431px) and (max-width: 820px){
  .back-arrow { display: none; }
}