/*--------------------------------------------------------------
# General
--------------------------------------------------------------*/
body {
  font-family: "Open Sans", sans-serif;
  color: #444444;
  zoom:80%;
}

a {
  color: #1acc8d;
  text-decoration: none;
}

a:hover {
  color: #1acc8d;
  text-decoration: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: "Jost", sans-serif;
}
#tailleHome
{
    font-size: 450px;
}

#home div img
{
    margin-bottom: 130px;
    min-width:800px;
    margin-left: -150px;
    
}
#header .logo
{
    margin-top: 4px;
    

}
#header .logo h1
{
    margin-top: -5px;

}
#logoHome
{
    width: 250px;
    margin-right: 40px;
    margin-top: 4px;

}

#tailleAbout
{
    font-size: 450px;
   
}
#tailleAbout h3
{
    font-size: 40px;
   
}
#tailleAbout img
{
    width: 370px;
    margin-left: 200px;
    margin-top:-200px;
}

#ft1
{  
margin-left: 250px;
}
#ft2
{  
margin-top: 40px;
margin-left: 20px;
}
.priceNote h2{
    
  padding-top: 50px;
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  text-transform: uppercase;
  font-family: "Poppins", sans-serif;
  color: #010483;
}
.priceNote span{
    
  padding-top: 50px;
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  text-transform: uppercase;
  font-family: "Poppins", sans-serif;
  color: #1acc8d;
}

/*--------------------------------------------------------------
# Header
--------------------------------------------------------------*/
#header {
  transition: all 0.5s;
  z-index: 997;
  padding: 0px 0;
}
#header.header-scrolled, #header.header-inner-pages {
  background: #010483;
}
#header .logo {
  font-size: 30px;
  margin: 0;
  padding: 0;
  line-height: 1;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
}
#header .logo a {
  color: #fff;
}
#header .logo img {
  max-height: 40px;
}

/*--------------------------------------------------------------
# Navigation Menu
--------------------------------------------------------------*/
/**
* Desktop Navigation 
*/
.navbar {
  padding: 0;
}
.navbar ul {
  margin: 0;
  padding: 0;
  display: flex;
  list-style: none;
  align-items: center;
}
.navbar li {
  position: relative;
}
.navbar a, .navbar a:focus {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 0 10px 30px;
  font-size: 16px;
  font-weight: 500;
  color: #fff;
  white-space: nowrap;
  transition: 0.3s;
}
.navbar a i, .navbar a:focus i {
  font-size: 12px;
  line-height: 0;
  margin-left: 5px;
}
.navbar a:hover, .navbar .active, .navbar .active:focus, .navbar li:hover > a {
  color: #1acc8d;
}
.navbar .getstarted, .navbar .getstarted:focus {
  padding: 8px 20px;
  margin-left: 30px;
  border-radius: 50px;
  color: #fff;
  font-size: 14px;
  border: 2px solid #010483;
  font-weight: 600;
}
.navbar .getstarted:hover, .navbar .getstarted:focus:hover {
  color: #fff;
  background: #010483;
}
.navbar .dropdown ul {
  display: block;
  position: absolute;
  left: 14px;
  top: calc(100% + 30px);
  margin: 0;
  padding: 10px 0;
  z-index: 99;
  opacity: 0;
  visibility: hidden;
  background: #fff;
  box-shadow: 0px 0px 30px rgba(127, 137, 161, 0.25);
  transition: 0.3s;
  border-radius: 4px;
}
.navbar .dropdown ul li {
  min-width: 200px;
}
.navbar .dropdown ul a {
  padding: 10px 20px;
  font-size: 14px;
  text-transform: none;
  font-weight: 500;
  color: #010483;
}
.navbar .dropdown ul a i {
  font-size: 12px;
}
.navbar .dropdown ul a:hover, .navbar .dropdown ul .active:hover, .navbar .dropdown ul li:hover > a {
  color: #1acc8d;
}
.navbar .dropdown:hover > ul {
  opacity: 1;
  top: 100%;
  visibility: visible;
}
.navbar .dropdown .dropdown ul {
  top: 0;
  left: calc(100% - 30px);
  visibility: hidden;
}
.navbar .dropdown .dropdown:hover > ul {
  opacity: 1;
  top: 0;
  left: 100%;
  visibility: visible;
}
@media (max-width: 1366px) {
  .navbar .dropdown .dropdown ul {
    left: -90%;
  }
  .navbar .dropdown .dropdown:hover > ul {
    left: -100%;
  }
}

/**
* Mobile Navigation 
*/
.mobile-nav-toggle {
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  display: none;
  line-height: 0;
  transition: 0.5s;
}
.mobile-nav-toggle.bi-x {
  color: #fff;
}

@media (max-width: 991px) {
  .mobile-nav-toggle {
    display: block;
  }

  .navbar ul {
    display: none;
  }
}
.navbar-mobile {
  position: fixed;
  overflow: hidden;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  background: rgba(40, 58, 90, 0.9);
  transition: 0.3s;
  z-index: 999;
}
.navbar-mobile .mobile-nav-toggle {
  position: absolute;
  top: 15px;
  right: 15px;
}
.navbar-mobile ul {
  display: block;
  position: absolute;
  top: 55px;
  right: 15px;
  bottom: 15px;
  left: 15px;
  padding: 10px 0;
  border-radius: 10px;
  background-color: #fff;
  overflow-y: auto;
  transition: 0.3s;
}
.navbar-mobile a, .navbar-mobile a:focus {
  padding: 10px 20px;
  font-size: 15px;
  color: #010483;
}
.navbar-mobile a:hover, .navbar-mobile .active, .navbar-mobile li:hover > a {
  color: #47b2e4;
}
.navbar-mobile .getstarted, .navbar-mobile .getstarted:focus {
  margin: 15px;
  color: #010483;
}
.navbar-mobile .dropdown ul {
  position: static;
  display: none;
  margin: 10px 20px;
  padding: 10px 0;
  z-index: 99;
  opacity: 1;
  visibility: visible;
  background: #fff;
  box-shadow: 0px 0px 30px rgba(127, 137, 161, 0.25);
}
.navbar-mobile .dropdown ul li {
  min-width: 200px;
}
.navbar-mobile .dropdown ul a {
  padding: 10px 20px;
}
.navbar-mobile .dropdown ul a i {
  font-size: 12px;
}
.navbar-mobile .dropdown ul a:hover, .navbar-mobile .dropdown ul .active:hover, .navbar-mobile .dropdown ul li:hover > a {
  color: #010483;
}
.navbar-mobile .dropdown > .dropdown-active {
  display: block;
}

/*--------------------------------------------------------------
# Sections General
--------------------------------------------------------------*/
section {
  padding: 60px 0;
  overflow: hidden;
}

.section-bg {
  background-color: #f5f5ff;
}

.section-title {
  padding-bottom: 40px;
}
.section-title h2 {
  font-size: 14px;
  font-weight: 500;
  padding: 0;
  line-height: 1px;
  margin: 0 0 5px 0;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #aaaaaa;
  font-family: "Poppins", sans-serif;
}
.section-title h2::after {
  content: "";
  width: 120px;
  height: 1px;
  display: inline-block;
  background: #1acc8d;
  margin: 4px 10px;
}
.section-title p {
  margin: 0;
  margin: 0;
  font-size: 36px;
  font-weight: 700;
  text-transform: uppercase;
  font-family: "Poppins", sans-serif;
  color: #010483;
}

/*--------------------------------------------------------------
# home Section
--------------------------------------------------------------*/
#home {
  width: 100%;
  height: 108vh;
  background: url("../img/usthb1.png") top center;
  background-size: cover;
  position: relative;
}
#home:before {
  content: "";
  background: rgba(45, 53, 69, 0.7);
  position: absolute;
  bottom: 0;
  top: 0;
  left: 0;
  right: 0;
}
#home .container {
  padding-top: 50px;
}
@media (max-width: 992px) {
  #home .container {
    padding-top: 0;
  }
}
#home h1 {
  margin-top: -20px;
  font-size: 48px;
  font-weight: 700;
  line-height: 56px;
  color: #fff;
  margin-left: -80px;

}
#home h2 {
  color: #eee;
  margin: 15px 0 0 0;
  font-size: 22px;
  margin-left: -80px;

}
#home .btn-get-started {
  font-family: "Raleway", sans-serif;
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 1px;
  display: inline-block;
  padding: 9px 35px;
  border-radius: 50px;
  transition: 0.5s;
  margin-top: 40px;
  border: 2px solid #1acc8d;
  color: #fff;
}
#home .btn-get-started:hover {
  background: #1acc8d;
}
@media (min-width: 1024px) {
  #home {
    background-attachment: fixed;
  }
}
@media (max-width: 768px) {
  #home {
    height: 100vh;
  }
  #home h1 {
    font-size: 28px;
    line-height: 36px;
  }
  #home h2 {
    font-size: 18px;
    line-height: 24px;
  }
}

#home .animated {
  animation: up-down 2s ease-in-out infinite alternate-reverse both;
}
@media (min-width: 1024px) {
  #home {
    background-attachment: fixed;
  }
}
@media (max-width: 991px) {
  #home {
    padding-top: 80px;
  }
  #home .animated {
    -webkit-animation: none;
    animation: none;
  }
  #home .home-img {
    text-align: center;
  }
  #home .home-img img {
    max-width: 50%;
  }
  #home h1 {
    font-size: 28px;
    line-height: 32px;
    margin-bottom: 10px;
  }
  #home h2 {
    font-size: 18px;
    line-height: 24px;
    margin-bottom: 30px;
  }
}
@media (max-width: 575px) {
  #home .home-img img {
    width: 80%;
  }
}

@-webkit-keyframes up-down {
  0% {
    transform: translateY(10px);
  }
  100% {
    transform: translateY(-10px);
  }
}

@keyframes up-down {
  0% {
    transform: translateY(10px);
  }
  100% {
    transform: translateY(-10px);
  }
}
.home-waves {
  display: block;
  margin-top: 60px;
  width: 100%;
  height: 60px;
  z-index: 5;
  position: relative;
}

.wave1 use {
  -webkit-animation: move-forever1 10s linear infinite;
  animation: move-forever1 10s linear infinite;
  -webkit-animation-delay: -2s;
  animation-delay: -2s;
}

.wave2 use {
  -webkit-animation: move-forever2 8s linear infinite;
  animation: move-forever2 8s linear infinite;
  -webkit-animation-delay: -2s;
  animation-delay: -2s;
}

.wave3 use {
  -webkit-animation: move-forever3 6s linear infinite;
  animation: move-forever3 6s linear infinite;
  -webkit-animation-delay: -2s;
  animation-delay: -2s;
}

@-webkit-keyframes move-forever1 {
  0% {
    transform: translate(85px, 0%);
  }
  100% {
    transform: translate(-90px, 0%);
  }
}

@keyframes move-forever1 {
  0% {
    transform: translate(85px, 0%);
  }
  100% {
    transform: translate(-90px, 0%);
  }
}
@-webkit-keyframes move-forever2 {
  0% {
    transform: translate(-90px, 0%);
  }
  100% {
    transform: translate(85px, 0%);
  }
}
@keyframes move-forever2 {
  0% {
    transform: translate(-90px, 0%);
  }
  100% {
    transform: translate(85px, 0%);
  }
}
@-webkit-keyframes move-forever3 {
  0% {
    transform: translate(-90px, 0%);
  }
  100% {
    transform: translate(85px, 0%);
  }
}
@keyframes move-forever3 {
  0% {
    transform: translate(-90px, 0%);
  }
  100% {
    transform: translate(85px, 0%);
  }
}

/*--------------------------------------------------------------
# sponsor
--------------------------------------------------------------*/

.sponsor {
  padding: 12px 0;
  text-align: center;
}
.sponsor img {
  max-width: 50%;
  transition: all 0.4s ease-in-out;
  display: inline-block;
  padding: 15px 0;
}
.sponsor img:hover {
  filter: none;
  transform: scale(1.1);
}
@media (max-width: 768px) {
  .sponsor img {
    max-width: 40%;
  }
}

.sponsor {
  padding-top: 15px;
}
.sponsor .sponsor-wrap {
  border-top: 1px solid #e7e7e7;
  border-left: 1px solid #e7e7e7;
}
.sponsor .sponsor-logo {
  padding: 64px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-right: 1px solid #e7e7e7;
  border-bottom: 1px solid #e7e7e7;
  overflow: hidden;
  background: #fff;
  height: 140px;
}
.sponsor .sponsor-logo:hover img {
  transform: scale(1.1);
}
.sponsor img {
  transition: all 0.4s ease-in-out;
}

/*--------------------------------------------------------------
# Disable AOS delay on mobile
--------------------------------------------------------------*/
@media screen and (max-width: 768px) {
  [data-aos-delay] {
    transition-delay: 0 !important;
  }
}

/*--------------------------------------------------------------
# About
--------------------------------------------------------------*/

#about {
  padding: 120px 0px 0px 0px;
  position: relative;
  z-index: 9;

}

#about .container {
  border-bottom: 5px solid #f7f7f7;
  padding-bottom: 80px;
}

#about .section-heading {
  margin-bottom: 10px;
}

#about .section-heading h6 {
  color: #5fb759;
}

#about .service-item {
  margin-top: 30px;
}

#about .service-item img {
  font-size: 40px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.35px;
  line-height: 56px;
    width: 400px;display: block;margin-left: auto;
  margin-right: auto;
}


#about .service-item h3 {
  font-size: 40px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.35px;
  line-height: 56px;
}


#about .right-text-content {
  margin-top: 40px;
}

#about .right-text-content p {
  font-size: 20px;
  line-height: 32px;
  color: #010483;
  font-weight: 300;
}
#about .right-text-content p span{
    font-weight: 700;

}

/*--------------------------------------------------------------
# About
--------------------------------------------------------------*/
#about {
  padding: 40px 0 0 0;
}
#about p {
  font-size: 24px;
  font-weight: 25;
  color: #010483;
  margin-bottom: 15px;
  text-align: justify;
  text-justify: inter-word;
}
#about h3 {
  font-size: 40px;
  font-weight: 400;
  color: #010483;
  margin-bottom: 15px;
}
#about p span 
{
  font-weight: 700;
}





/*--------------------------------------------------------------
# lieu
--------------------------------------------------------------*/
.lieu {
  
  background: #f5f5ff;
  max-height: 800px;

}

.lieu h3 {
    
  padding: 40px 0 0 0; 
  font-size: 40px;
  font-weight: 400;
  color: #010483;
  margin-bottom: 15px;
}

.lieu p {
    
  font-size: 24px;
  font-weight: 25;
  color: #010483;
  margin-bottom: 15px;
  text-align: justify;
  text-justify: inter-word;

}

.lieu .service-item img {
  font-size: 40px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.35px;
  line-height: 56px;
  width: 420px;
  display: block;
  margin-right: auto;
  margin-left: auto;

}

/*--------------------------------------------------------------
# conferenciers
--------------------------------------------------------------*/
.conferenciers {
  background: #fff;
}
.conferenciers .member {
  position: relative;
  box-shadow: 0px 2px 15px rgba(44, 73, 100, 0.08);
  padding: 40px;
  border-radius: 10px;
}
.conferenciers .member .pic {
  overflow: hidden;
  width: 120px;
  border-radius: 50%;
}
.conferenciers .member .pic img {
  transition: ease-in-out 0.3s;
}
.conferenciers .member:hover img {
  transform: scale(1.0);
}
.conferenciers .member .member-info {
  padding-left: 30px;
}
.conferenciers .member h4 {
  font-weight: 700;
  margin-bottom: 5px;
  font-size: 20px;
  color: #2c4964;
}
.conferenciers .member span {
  display: block;
  font-size: 15px;
  padding-bottom: 10px;
  position: relative;
  font-weight: 500;
}
.conferenciers .member span::after {
  content: "";
  position: absolute;
  display: block;
  width: 50px;
  height: 1px;
  background: #b2c8dd;
  bottom: 0;
  left: 0;
}
.conferenciers .member p {
  margin: 10px 0 0 0;
  font-size: 14px;
}
.conferenciers .member .social {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.conferenciers .member .social a {
  transition: ease-in-out 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50px;
  width: 32px;
  height: 32px;
  background: #a0bcd5;
}
.conferenciers .member .social a i {
  color: #fff;
  font-size: 16px;
  margin: 0 2px;
}
.conferenciers .member .social a:hover {
  background: #1977cc;
}
.conferenciers .member .social a + a {
  margin-left: 8px;
}

/*--------------------------------------------------------------
# publication
--------------------------------------------------------------*/
.publication {
  
  background: #f5f5ff;
  max-height: 600px;

}

.publication .member {
  text-align: center;
  margin-bottom: 80px;
  position: relative;
}
.publication .member .pic {
  border-radius: 4px;
  overflow: hidden;
}
.publication .member img {
  transition: all ease-in-out 0.4s;
}
.publication .member:hover img {
  transform: scale(1.1);
}
.publication .member .member-info {
  position: absolute;
  bottom: -80px;
  left: 0px;
  right: 0px;
  background: rgba(255, 255, 255, 0.9);
  padding: 15px 0;
  border-radius: 0 0 4px 4px;
  box-shadow: 0px 2px 15px rgba(0, 0, 0, 0.1);
}
.publication .member h4 {
  font-weight: 700;
  margin-bottom: 10px;
  font-size: 16px;
  color: #01036f;
  position: relative;
  padding-bottom: 10px;
}
.publication .member h4::after {
  content: "";
  position: absolute;
  display: block;
  width: 50px;
  height: 1px;
  background: #0d12fc;
  bottom: 0;
  left: calc(50% - 25px);
}
.publication .member span {
  font-style: italic;
  display: block;
  font-size: 13px;
  color: #01036f;
}
.publication .member .social {
  margin-top: 10px;
}
.publication .member .social a {
  transition: color 0.3s;
  color: #01036f;
}
.publication .member .social a:hover {
  color: #1acc8d;
}
.publication .member .social i {
  font-size: 16px;
  margin: 0 2px;
}


/*--------------------------------------------------------------
# Dates
--------------------------------------------------------------*/

dates {
  
  background: #fff;
  max-height: 600px;

}

.dates .member {
  text-align: center;
  margin-bottom: 80px;
  position: relative;
}
.dates .member .pic {
  border-radius: 4px;
  overflow: hidden;
}
.dates .member img {
  transition: all ease-in-out 0.4s;
}
.dates .member:hover img {
  transform: scale(1.1);
}
.dates .member .member-info {
  position: absolute;
  bottom: -80px;
  left: 0px;
  right: 0px;
  background: rgba(255, 255, 255, 0.9);
  padding: 15px 0;
  border-radius: 0 0 4px 4px;
  box-shadow: 0px 2px 15px rgba(0, 0, 0, 0.1);
}
.dates .member h4 {
  font-weight: 700;
  margin-bottom: 10px;
  font-size: 16px;
  color: #01036f;
  position: relative;
  padding-bottom: 10px;
}
.dates .member h4::after {
  content: "";
  position: absolute;
  display: block;
  width: 50px;
  height: 1px;
  background: #0d12fc;
  bottom: 0;
  left: calc(50% - 25px);
}
.dates .member span {
  font-style: italic;
  display: block;
  font-size: 13px;
  color: #01036f;
}
.dates .member .social {
  margin-top: 10px;
}
.dates .member .social a {
  transition: color 0.3s;
  color: #01036f;
}
.dates .member .social a:hover {
  color: #1acc8d;
}
.dates .member .social i {
  font-size: 16px;
  margin: 0 2px;
}

#dates2
{
    margin-top: -120px;
}
.dates2 .content h3 {
  font-weight: 600;
  font-size: 26px;
  color: #010483;
}
.dates2 .content ul {
  list-style: none;
  padding: 0;
  margin-left: -8px;
}
.dates2 .content ul li {
    
  font-size: 25px;
  color: #01036f;


}
.dates2 .content ul i {
  font-size: 30px;
  color: #1acc8d;
}
.dates2 .content p:last-child {
  margin-bottom: 0;
}

/*--------------------------------------------------------------
# Footer
--------------------------------------------------------------*/
#footer {
  background: #010483 center center no-repeat;
  color: #fff;
  font-size: 13.2px;
  position: relative;
}
#footer::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  background: #010483;
  z-index: 1;
}
#footer .footer-top {
  position: relative;
  z-index: 2;
  text-align: center;
  padding-top:60px;
  padding-bottom:10px;

}
#footer .footer-top h3 {
  font-size: 36px;
  font-weight: 700;
  color: #fff;
  position: relative;
  font-family: "Poppins", sans-serif;
  padding-bottom: 0;
  margin-bottom: 0;
}
#footer .footer-top h4 {
  font-size: 17px;
  font-style: italic;
  margin: 25px 0 0 0;
  padding: 0;
  font-weight: 400;
}
#footer .footer-top .footer-newsletter {
  text-align: center;
  font-size: 15px;
  margin-top: 30px;
}
#footer .footer-top .footer-newsletter form {
  background: #fff;
  padding: 6px 10px;
  position: relative;
  border-radius: 50px;
  box-shadow: 0px 2px 15px rgba(0, 0, 0, 0.1);
  text-align: left;
}
#footer .footer-top .footer-newsletter form input[type=email] {
  border: 0;
  padding: 4px 8px;
  width: calc(100% - 100px);
}
#footer .footer-top .footer-newsletter form input[type=submit] {
  position: absolute;
  top: 0;
  right: -1px;
  bottom: 0;
  border: 0;
  background: none;
  font-size: 16px;
  padding: 0 20px;
  background: #010483;
  color: #fff;
  transition: 0.3s;
  border-radius: 50px;
  box-shadow: 0px 2px 15px rgba(0, 0, 0, 0.1);
}
#footer .footer-top .footer-newsletter form input[type=submit]:hover {
  background: #010483;
}
#footer .footer-top .social-links {
  margin-top: 30px;
}
#footer .footer-top .social-links a {
  font-size: 18px;
  display: inline-block;
  background: #010483;
  color: #fff;
  line-height: 1;
  padding: 8px 0;
  margin-right: 4px;
  border-radius: 50%;
  text-align: center;
  width: 36px;
  height: 36px;
  transition: 0.3s;
}
#footer .footer-top .social-links a:hover {
  background: #010483;
  color: #fff;
  text-decoration: none;
}
#footer .footer-bottom {
  border-top: 1px solid #fff;
  z-index: 2;
  position: relative;
  padding-top: 40px;
  padding-bottom: 40px;
}
#footer .copyright {
  text-align: center;
  float: left;
}
#footer .credits {
  float: right;
  text-align: center;
  font-size: 13px;
}
@media (max-width: 768px) {
  #footer .copyright, #footer .credits {
    padding: 5px;
    float: none;
    text-align: ceneter;
  }
}

/*--------------------------------------------------------------
# Preloader
--------------------------------------------------------------*/
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  overflow: hidden;
  background: #1acc8d;
}

#preloader:before {
  content: "";
  position: fixed;
  top: calc(50% - 30px);
  left: calc(50% - 30px);
  border: 6px solid #1acc8d;
  border-top-color: #fff;
  border-bottom-color: #fff;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  -webkit-animation: animate-preloader 1s linear infinite;
  animation: animate-preloader 1s linear infinite;
}

@-webkit-keyframes animate-preloader {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes animate-preloader {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}
/*--------------------------------------------------------------
# Back to top button
--------------------------------------------------------------*/
.back-to-top {
  position: fixed;
  visibility: hidden;
  opacity: 0;
  right: 15px;
  bottom: 15px;
  z-index: 996;
  background: #1acc8d;
  width: 40px;
  height: 40px;
  border-radius: 50px;
  transition: all 0.4s;
}
.back-to-top i {
  font-size: 24px;
  color: #fff;
  line-height: 0;
}
.back-to-top:hover {
  background: #1acc8d;
  color: #fff;
}
.back-to-top.active {
  visibility: visible;
  opacity: 1;
}