body {
    background-image: url("nevada.jpg");
    background-repeat: no-repeat;
    background-size: auto;
    margin: 0%;
    height: 100vh;
    display: grid;
    place-items: center;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
.chain-line {
    z-index: 2;
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    width: 100%;
    height: 100px;
    background-color: rgb(137, 225, 161);
    margin-bottom: 300px;
}

.animal-container {
    background-color: aliceblue;
    color: black;
    border-radius: 20px;
    width: 250px;
    height: 150px;
    visibility: visible;
    transition: 0.5s;
    margin-top: 50px;
}

.btn {
    all: unset;
    display: inline-block;
    cursor: pointer;
    padding: 12px 24px;
    text-decoration: none;
    color: #fff;
    background: #28a745;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 400;
    transition: 0.3s;
    box-shadow: 4px 4px 20px rgba(0, 0, 0, 0.3);
    text-shadow: 0px 0px 10px rgba(0, 0, 0, 0.4);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(50px);
    border: 2px solid rgba(255, 255, 255, 0.1);
    margin-top: -120px;
    margin-left: 20px;
    transition: 0.5s;
}

.btn:hover {
    all: unset; /* tarayıcı varsayılan buton stilini sıfırlar */
    display: inline-block;
    cursor: pointer;
    padding: 12px 24px;
    text-decoration: none;
    color: #fff;
    background: #28a745;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 400;
    transition: 0.3s;
    box-shadow: 4px 4px 20px rgba(49, 245, 52, 0.6);
    text-shadow: 0px 0px 10px rgba(0, 0, 0, 0.4);
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(50px);
    border: 2px solid rgba(255, 255, 255, 0.1);
    margin-top: -120px;
    margin-left: 20px;
    transform: rotateX(100deg);
    transform: rotateY(10deg);
}
.animal-description{
    text-align: center;
    background-color: rgb(255, 255, 255);
    color: black;
    border-radius: 20px;
    width: 250px;
    height: 80px;
    visibility: visible;
    transition: 0.5s;
}
.animal-description h1{
    color: rgba(255, 255, 255, 0);
    text-align: center;
    visibility: hidden;
    transition: 0.5s;
}
.animal-description span{
    color: rgba(255, 255, 255, 0);
    text-align: center;
    font-size: 17px;
    visibility: hidden;
    transition: 0.5s;
}
/* .btn üzerine hover yapılınca .animal-container'ın stilini değiştirme */
.animal-container:hover > .animal-description{
    background-color: rgb(255, 255, 255);
    color: black;
    border-radius: 20px;
    width: 250px;
    height: 250px;
    visibility: visible;
    margin-top: 50px;
}
.animal-container:hover > .animal-description h1 {
    text-align: center;
    visibility: visible;
    color: black;
}
.animal-container:hover > .animal-description span {
    text-align: center;
    font-size: 17px;
    visibility: visible;
    transition: 0.5s;
    color: black;
}

.animal-container:hover{
    background-color: aliceblue;
    color: black;
    border-radius: 20px;
    width: 250px;
    height: 150px;
    visibility: visible;
    transition: 0.5s;
    margin-top: 50px;
}

@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700;900&display=swap');

*,
*::before,
*::after {
  box-sizing: border-box;
}
.sec-center {
  position: relative;
  max-width: 100%;
  text-align: left;
  z-index: 200;
}
[type="checkbox"]:checked,
[type="checkbox"]:not(:checked){
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.dark-light:checked + label{
  transform: rotate(360deg);
}
.dark-light:checked + label:after,
.dark-light:not(:checked) + label:after{
  position: absolute;
  content: '';
  top: 1px;
  left: 1px;
  overflow: hidden;
  z-index: 2;
  display: block;
  border-radius: 70%;
  width: 44px;
  height: 44px;
  background-color: #102770;
  background-image: url('https://assets.codepen.io/1462889/moon.svg');
  background-size: 20px 20px;
  background-repeat: no-repeat;
  background-position: center;
  transition: all 200ms linear;
  opacity: 0;
}
.dark-light:checked + label:after {
  opacity: 1;
}
.dark-light:checked + label:before,
.dark-light:not(:checked) + label:before{
  position: absolute;
  content: '';
  top: 0;
  left: 0;
  overflow: hidden;
  z-index: 1;
  display: block;
  border-radius: 70%;
  width: 46px;
  height: 46px;
  background-color: #48dbfb;
  background-image: url('https://assets.codepen.io/1462889/sun.svg');
  background-size: 25px 25px;
  background-repeat: no-repeat;
  background-position: center;
  transition: all 200ms linear;
}
.dark-light:checked + label:before{
  background-color: #000;
}
.light-back{
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1;
  background-color: #fff;
  overflow: hidden;
  background-image: url('https://s3-us-west-2.amazonaws.com/s.cdpn.io/1462889/pat-back.svg');
  background-position: center;
  background-repeat: repeat;
  background-size: 4%;
  height: 100%;
  width: 100%;
  transition: all 200ms linear;
  opacity: 0;
}
.dark-light:checked ~ .light-back{
  opacity: 1;
}
.dropdown:checked + label,
.dropdown:not(:checked) + label{
  position: relative;
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  font-size: 15px;
  line-height: 2;
  height: 50px;
  transition: all 200ms linear;
  border-radius: 10px;
  width: 220px;
  letter-spacing: 1px;
  display: -webkit-inline-flex;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-align-items: center;
  -moz-align-items: center;
  -ms-align-items: center;
  align-items: center;
  -webkit-justify-content: center;
  -moz-justify-content: center;
  -ms-justify-content: center;
  justify-content: center;
  -ms-flex-pack: center;
  text-align: center;
  border: none;
  background-color: #a7ffae;
  cursor: pointer;
  color: #102770;
  box-shadow: 0 12px 35px 0 rgba(255,235,167,.15);
  margin-top: 100px;
}
.dark-light:checked ~ .sec-center .for-dropdown{
  background-color: #102770;
  color: #a7ffae;
  box-shadow: 0 12px 35px 0 rgba(16,39,112,.25);
}
.dropdown:checked + label:before,
.dropdown:not(:checked) + label:before{
  position: fixed;
  top: 0;
  left: 0;
  content: '';
  width: 100%;
  height: 100%;
  z-index: -1;
  cursor: auto;
  pointer-events: none;
}
.dropdown:checked + label:before{
  pointer-events: auto;
}
.dropdown:not(:checked) + label .uil {
  font-size: 24px;
  margin-left: 10px;
  transition: transform 200ms linear;
}
.dropdown:checked + label .uil {
  transform: rotate(180deg);
  font-size: 24px;
  margin-left: 10px;
  transition: transform 200ms linear;
}
.section-dropdown {
  position: absolute;
  padding: 5px;
  background-color: #111;
  top: 160px;
  left: 0;
  width: 100%;
  border-radius: 6px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 14px 35px 0 rgba(9,9,12,0.4);
  z-index: 2;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: all 200ms linear;
}
.dark-light:checked ~ .sec-center .section-dropdown {
  background-color: #fff;
  box-shadow: 0 14px 35px 0 rgba(9,9,12,0.15);
}
.dropdown:checked ~ .section-dropdown{
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.section-dropdown:before {
  position: absolute;
  top: -20px;
  left: 0;
  width: 100%;
  height: 20px;
  content: '';
  display: block;
  z-index: 1;
}
.section-dropdown:after {
  position: absolute;
  top: -7px;
  left: 30px;
  width: 0; 
  height: 0; 
  border-left: 8px solid transparent;
  border-right: 8px solid transparent; 
  border-bottom: 8px solid #111;
  content: '';
  display: block;
  z-index: 2;
  transition: all 200ms linear;
}
.dark-light:checked ~ .sec-center .section-dropdown:after {
  border-bottom: 8px solid #fff;
}

a {
  position: relative;
  color: #fff;
  transition: all 200ms linear;
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  font-size: 15px;
  border-radius: 2px;
  padding: 5px 0;
  padding-left: 20px;
  padding-right: 15px;
  margin: 2px 0;
  text-align: left;
  text-decoration: none;
  display: -ms-flexbox;
  display: flex;
  -webkit-align-items: center;
  -moz-align-items: center;
  -ms-align-items: center;
  align-items: center;
  justify-content: space-between;
  -ms-flex-pack: distribute;
}
.uil-arrow-right {
  background-color: #000;
  color: aliceblue;
  border: 0;
  transition: 0.3s;
}
.uil-arrow-right:hover{
  background-color: #a7ffae;
  color: rgb(101, 101, 101);
  border: 0;
}
.dark-light:checked ~ .sec-center .section-dropdown a {
  color: #102770;
}
a:hover {
  color: #102770;
  background-color: #a7ffae;
}
.dark-light:checked ~ .sec-center .section-dropdown a:hover {
  color: #48824b;
  background-color: #102770;
}
a .uil {
  font-size: 22px;
}
.dropdown-sub:checked + label,
.dropdown-sub:not(:checked) + label{
  position: relative;
  color: #fff;
  transition: all 200ms linear;
  font-family: 'Roboto', sans-serif;
  font-weight: 500;
  font-size: 15px;
  border-radius: 2px;
  padding: 5px 0;
  padding-left: 20px;
  padding-right: 15px;
  text-align: left;
  text-decoration: none;
  display: -ms-flexbox;
  display: flex;
  -webkit-align-items: center;
  -moz-align-items: center;
  -ms-align-items: center;
  align-items: center;
  justify-content: space-between;
    -ms-flex-pack: distribute;
    cursor: pointer;
}
.dropdown-sub:checked + label .uil,
.dropdown-sub:not(:checked) + label .uil{
  font-size: 22px;
}
.dropdown-sub:not(:checked) + label .uil {
  transition: transform 200ms linear;
}
.dropdown-sub:checked + label .uil {
  transform: rotate(135deg);
  transition: transform 200ms linear;
}
.dropdown-sub:checked + label:hover,
.dropdown-sub:not(:checked) + label:hover{
  color: #102770;
  background-color: #a7ffae;
}
.dark-light:checked ~ .sec-center .section-dropdown .for-dropdown-sub{
  color: #102770;
}
.dark-light:checked ~ .sec-center .section-dropdown .for-dropdown-sub:hover{
  color: #588447;
  background-color: #102770;
}

.section-dropdown-sub {
  position: relative;
  display: block;
  width: 100%;
  pointer-events: none;
  opacity: 0;
  max-height: 0;
  padding-left: 10px;
  padding-right: 3px;
  overflow: hidden;
  transition: all 200ms linear;
}
.dropdown-sub:checked ~ .section-dropdown-sub{
  pointer-events: auto;
  opacity: 1;
  max-height: 999px;
}
.section-dropdown-sub a {
  font-size: 14px;
}
.section-dropdown-sub a .uil {
  font-size: 20px;
}
.logo {
	position: fixed;
	top: 50px;
	left: 40px;
	display: block;
	z-index: 11000000;
  background-color: transparent;
  border-radius: 0;
  padding: 0;
	transition: all 250ms linear;
}
.logo:hover {
  background-color: transparent;
}
.logo img {
	height: 26px;
	width: auto;
	display: block;
  transition: all 200ms linear;
}
.dark-light:checked ~ .logo img{
  filter: brightness(10%);
}

@media screen and (max-width: 991px) {
.logo {
	top: 30px;
	left: 20px;
}
.dark-light:checked + label,
.dark-light:not(:checked) + label{
  top: 20px;
  right: 20px;
}
}

@media only screen and (max-width: 1260px) {
    .chain-line{
        padding-top: 200px;
        padding-bottom: 200px;
        gap: 350px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        text-align: center;
        align-items: center;
        height: 100%;
        width: 100px;
        background-color: rgb(137, 225, 161);
        margin-bottom: 500px;
    }
}