* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Quicksand";
}
html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}
body {
  background-color: #ffffff;
}
::selection {
  background-color: #ffffff00;
}

/* NavBar Starts */
nav {
  position: fixed;
  z-index: 99;
  width: 100%;
  background-color: #00000039;
  backdrop-filter: blur(2px);
  border-bottom: 1px solid #e6e5e531;
  transition: all 1.1s;
}

nav .wrapper {
  position: relative;
  max-width: 1300px;
  padding: 0px 30px;
  height: 80px;
  line-height: 70px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wrapper img {
  width: 65px;
}
.wrapper .logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}
.wrapper .logo a {
  color: #f2f2f2;
  font-size: 25px;
  font-weight: 500;
  text-decoration: none;
  letter-spacing: 1px;
}
.wrapper .nav-links {
  display: inline-flex;
}
.nav-links li {
  list-style: none;
  letter-spacing: 1px;
}
.nav-links li a {
  color: #f0f0f0da;
  text-decoration: none;
  font-size: 21px;
  font-weight: 500;
  padding: 9px 15px;
  margin-left: 5px;
  margin-right: 5px;
  transition: all 0.3s ease;
}

.nav-links li a:hover {
  border-radius: 5px;
  color: #fff;
}

.header {
  min-height: 85vh;
  width: 100%;
  background-image: linear-gradient(to bottom, #0000004a, #000000b9),
    url(Media/library.jpg);
  background-size: cover;
  position: relative;
  background-position: bottom;
  overflow: hidden;
  background-repeat: no-repeat;
  background-attachment: fixed;
}
.header .text {
  width: 100%;
  align-items: center;
  justify-content: center;
  display: grid;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.header .h1 {
  font-size: 90px;
  font-family: "Raleway";
  color: #fff;
  letter-spacing: 3px;
  text-align: center;
}
.header .h1 span {
  font-family: "Hanken Grotesk";
  color: #fff;
}
.header .p {
  font-size: 18px;
  letter-spacing: 1px;
  color: #ffffff;
  text-align: center;
  font-family: "Comfortaa";
  line-height: 32px;
}

.holder-btn {
  display: flex;
  align-items: center;
  justify-content: center;
}
.holder-btn a {
  text-decoration: none;
}
.btn {
  padding: 10px 20px;
  width: 200px;
  text-align: center;
  margin-top: 40px;
  color: #fff;
  font-size: 20px;
  letter-spacing: 1px;
  font-family: "Quicksand";
  border-radius: 5px;
  cursor: pointer;
  border: 2px solid #fff;
  box-shadow: 5px 5px #fff;
  transition: all 0.3s;
}

.btn:hover {
  background-color: #ffffff0c;
  box-shadow: 0 0 0 #fff;
}

.btn:active {
  transform: scale(0.97);
  transition: 0.2s;
}
/* Class.html */

.class-name {
  width: 100%;
  padding: 4rem 5%;
  text-align: center;
}
.class-name h1 {
  font-family: "Hanken Grotesk";
  font-size: 55px;
  text-transform: capitalize;
}
.class-name p {
  font-family: "Raleway";
  font-weight: 800;
  letter-spacing: 0.5px;
  margin-top: 10px;
  font-size: 20px;
}

.class-holder {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 50px;
  margin-top: 50px;
}
.class-holder a {
  text-decoration: none;
}
.class {
  width: 210px;
  height: 180px;
  border: 3px solid #272727;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  font-family: "Hanken Grotesk";
  color: #272727;
  cursor: pointer;
  transition: all 0.2s;
}

.class:hover {
  background-color: #272727;
  color: #fff;
}

.title-info {
  width: 100%;
  position: absolute;
  bottom: 0;
  padding: 2rem 5%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.title-info p {
  font-size: 17px;
  width: 100%;
  text-align: center;
  font-family: "Raleway";
  line-height: 24px;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
  color: #202020;
  font-weight: 800;
}

.btn-next {
  width: 100px;
  cursor: pointer;
  height: 60px;
  border-radius: 5px;
  padding: 10px;
  color: #fff;
  display: flex;
  font-size: 17px;
  font-weight: 400;
  letter-spacing: 0.4px;
  align-items: center;
  font-family: "Poppins";
  justify-content: center;
  background-color: #272727;
  text-decoration: none;
  transition: all 0.3s;
  position: absolute;
  bottom: 10%;
  right: 5%;
}

.btn-next:hover {
  transform: scale(1.1);
}
.btn-back {
  width: 100px;
  cursor: pointer;
  height: 60px;
  border-radius: 5px;
  padding: 10px;
  color: #fff;
  display: flex;
  font-size: 17px;
  font-weight: 400;
  letter-spacing: 0.4px;
  align-items: center;
  font-family: "Poppins";
  justify-content: center;
  background-color: #272727;
  text-decoration: none;
  transition: all 0.3s;
  position: absolute;
  bottom: 10%;
  left: 5%;
}

.btn-back:hover {
  transform: scale(1.1);
}

label input[type="radio"] {
  display: none;
}
label input[type="radio"]:checked + .class {
  background-color: #272727;
  color: #fff;
  transform: scale(0.96);
}

.due-today {
  background-color: #ff0000;
}

.space {
  margin-top: 100px;
}

.header .down-box {
  position: absolute;
  right: 3%;
  bottom: 5%;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 1px solid #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.5s;
  text-decoration: none;
}

.header .down-box i {
  font-size: 21px;
  color: #fff;
  transition: color 0.5s;
}

.header .down-box:hover {
  background-color: #ffffff16;
  transform: scale(0.9);
}

.container_loader {
  position: relative;
  width: 100%;
  display: flex;
  justify-content: center;
}
.wrapper_loader {
  position: absolute;
  top: -35px;
  transform: scale(1.5);
}
.loader_loader {
  height: 25px;
  width: 1px;
  position: absolute;
  animation: rotate 3.5s linear infinite;
}
.loader_loader .dot_loader {
  top: 30px;
  height: 7px;
  width: 7px;
  background: #fff;
  border-radius: 50%;
  position: relative;
}
.text_loader {
  position: absolute;
  bottom: -85px;
  font-size: 25px;
  font-weight: 400;
  font-family: "Poppins", sans-serif;
  color: #fff;
}
@keyframes rotate {
  30% {
    transform: rotate(220deg);
  }
  40% {
    transform: rotate(450deg);
    opacity: 1;
  }
  75% {
    transform: rotate(720deg);
    opacity: 1;
  }
  76% {
    opacity: 0;
  }
  100% {
    opacity: 0;
    transform: rotate(0deg);
  }
}
.loader:nth-child(1) {
  animation-delay: 0.15s;
}
.loader:nth-child(2) {
  animation-delay: 0.3s;
}
.loader:nth-child(3) {
  animation-delay: 0.45s;
}
.loader:nth-child(4) {
  animation-delay: 0.6s;
}
.loader:nth-child(5) {
  animation-delay: 0.75s;
}
.loader:nth-child(6) {
  animation-delay: 0.9s;
}