html {
    box-sizing: border-box;
    font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;
    font-weight: 400;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a {
    text-decoration: none;
}

 p {
    font-size: 16px;
	line-height: 1.7;
    margin-top: 25px;
}

.nav-link {
	color: #fff;	
}

/*--------------------------------------------------------------
# Logo
--------------------------------------------------------------*/

.logo {
    font-size: 24px;
	color: #61dafb;
	padding-left: 15px;
    margin: 0;
    line-height: 1;
    font-weight: 400;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/*--------------------------------------------------------------
# Navbar
--------------------------------------------------------------*/

.navbar {
    color: #ffffff;
    position: fixed;
    z-index: 1;
    width: 100%;
    top: 0;
    left: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.navbar a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: "Raleway", sans-serif;
    font-size: 15px;
    font-weight: 600;
    white-space: nowrap;
    transition: 0.3s;
    position: relative;
}

.navbar a:hover, .navbar a:focus, .navbar a.active{
	color: #61dafb;
}

.navbar ul {
    margin: 0;
    padding: 0;
    display: flex;
    list-style: none;
    align-items: center;
}

.navbar li {
    padding-left: 10px;
    padding-right: 10px;
}

/*--------------------------------------------------------------
# Back to top button
--------------------------------------------------------------*/
.back-to-top {
  position: fixed;
  visibility: hidden;
  opacity: 0;
  right: 15px;
  bottom: 15px;
  z-index: 996;
  background: #61dafb;
  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: #49cbbb;
  color: #fff;
}
.back-to-top.active {
  visibility: visible;
  opacity: 1;
}

/*--------------------------------------------------------------
# Footer
--------------------------------------------------------------*/

footer {
    background-color: #20232a;
    color: #ffffff;
}

footer h5 {
    color: #999;
    font-size: 14px;
    font-weight: 700;
    line-height: 3;
    text-transform: uppercase;
    text-align: start;
    letter-spacing: 0.08em;
}
footer a {
    line-height: 2;
    color: inherit;
    text-decoration: none;
    background-color: transparent;
}


.pt-3 {
    padding-top: 3rem!important;
}


h2, h4 {
    margin: 0.67em 0;
}

h4 {
   font-weight: 600;
}

.topic-list {
	color: #1a1a1a;
	margin-top: 5px;
    left: 15px;
}

.topic {
    color: rgb(109, 109, 109);
    font-size: 14px;
    font-weight: 700;
    line-height: 3;
    text-transform: uppercase;
    text-align: start;
    letter-spacing: 0.08em;
}

.topic-list:hover, .topic-list:focus {
    width: 4px;
	color: #1a1a1a;
    height: 25px;
    border-left: 4px solid #61dafb;
    padding-left: 16px;
    left: 0;
    margin-top: -3px;
}

.container-fluid {
    --bs-gutter-x: 0rem;
}

.started {
    display: inline-block;
    font-size: 16px;
    background-color: rgb(97, 218, 251);
    color: rgb(0, 0, 0);
    padding: 10px 25px;
    white-space: nowrap;
    transition: background-color 0.2s ease-out 0s;
}

/*--------------------------------------------------------------
# Hero
--------------------------------------------------------------*/

#hero {
    width: 100%;
    height: 100vh;
    background: url(/IMG/T1.jpeg) top right;
    background-size: cover;
}

section {
    padding: 60px 0;
}

#hero .btn-about {
    font-family: "Raleway", sans-serif;
    text-transform: uppercase;
    font-weight: 600;
    font-size: 12px;
    letter-spacing: 1px;
    display: inline-block;
    padding: 12px 40px;
    border-radius: 50px;
    transition: 0.5s;
    margin-top: 30px;
    color: #fff;
    background: #61dafb;
}



.pt-2 {
    padding-top: 0.5rem!important;
}
.bd-title {
    font-size: calc(1.425rem + 2.1vw);
}

.mb-0 {
    margin-bottom: 0!important;
}
.bd-lead {
    font-size: calc(1.275rem + .3vw);
    font-weight: 300;
}

.header-h1 {
    text-align: center;
    margin: 0;
    font-size: 35px;
    letter-spacing: 0.01em;
}

.header-p {
    padding-top: 5px;
    text-align: center;
    font-size: 24px;
    letter-spacing: 0.01em;
    font-weight: 200;
}


.text-decoration-none {
    text-decoration: none!important;
}
.d-inline-flex {
    display: inline-flex!important;
}

.link-dark {
    color: #212529!important;
}
.mb-1 {
    margin-bottom: 0.25rem!important;
}

li {
    display: list-item;
    text-align: -webkit-match-parent;
}


.btn-toggle {
  padding: .25rem .5rem;
  font-weight: 600;
  color: rgba(0, 0, 0, .65);
  background-color: transparent;
}
.btn-toggle:hover,
.btn-toggle:focus {
  color: rgba(0, 0, 0, .85);
  background-color: #61dafb;
}

.btn-toggle::before {
  width: 1.25em;
  line-height: 0;
  content: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='rgba%280,0,0,.5%29' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M5 14l6-6-6-6'/%3e%3c/svg%3e");
  transition: transform .35s ease;
  transform-origin: .5em 50%;
}

.btn-toggle[aria-expanded="true"] {
  color: rgba(0, 0, 0, .85);
}
.btn-toggle[aria-expanded="true"]::before {
  transform: rotate(90deg);
}

.btn-toggle-nav a {
  padding: .1875rem .5rem;
  margin-top: .125rem;
  margin-left: 1.25rem;
}
.btn-toggle-nav a:hover,
.btn-toggle-nav a:focus {
  background-color: #61dafb;
}