* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

#preloader {
  background: #000 url(images/loader.gif) center no-repeat;
  width: 100%;
  height: 100vh;
  opacity: 0.8;
  background-size: 15%;
  z-index: 100;
  position: fixed;
}
header {
  background-color: rgb(51, 51, 167);
  color: white !important;
  position: sticky;
  top: 0;
  z-index: 100;
}

header li {
  list-style: none;
}
header a {
  color: white !important;
  text-decoration: none;
}
header .navbar {
  min-height: 70px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
}

header .nav-menu {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 60px;
}

header .nav-branding {
  font-size: 2.5rem;
  margin-right: auto;
  margin-left: 1rem;
  transition: 0.6 ease;
}

header .nav-link {
  transition: 0.7s ease;
  margin-top: 15px;
}

header .nav-link:hover {
  color: dodgerblue;
}

header .hamburger {
  display: none;
  cursor: pointer;
}

header .bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  -webkit-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
  background-color: white;
}

@media (max-width: 768px) {
  header .hamburger {
    display: block;
  }
  header .hamburger.active .bar:nth-child(3) {
    opacity: 0;
  }
  header .hamburger.active .bar:nth-child(1) {
    transform: translate(8px) rotate(45deg);
  }
  header .hamburger.active .bar:nth-child(2) {
    transform: translate(8px, -8px) rotate(-43deg);
  }
  header .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    gap: 0;
    flex-direction: column;
    background-color: #262626;
    width: 100%;
    text-align: center;
    transition: 0.3s;
  }

  header .nav-item {
    margin: 16px 0;
  }
  header .nav-menu.active {
    left: 0;
  }
}

.container-fluid {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  background-color: rgb(51, 51, 167);
  color: white;
  text-align: center;
  align-items: center;
}
.container-fluid h1 {
  margin-right: auto;
  margin-left: 1rem;
  transition: 0.6 ease;
}
a {
  text-decoration: none;
  color: white;
  cursor: pointer;
  transition: 0.6 ease;
  margin-right: 2rem;
}
a:hover {
  color: rgb(255, 255, 255);
  font-weight: 900;
  background-color: rgb(20, 21, 21);
  border-radius: 1rem;
  padding: 0.5rem 1rem;
}

.main {
  height: 90vh;
  display: flex;
  justify-content: space-evenly;
  flex-wrap: wrap;
  /* align-items: center; */
}
.main img {
  height: 90vh !important;
  /* width: 30% !important; */
}
.left {
  width: 20%;
  padding: 6% 10%;
  flex: 40%;
  background: url("images/background1.webp");
}
.right {
  flex: 60%;
}
.exercise-collection {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
}
.card {
  width: 300px;
  margin: 3% 5%;

  box-shadow: 1px 1px 7px #786d6d;
}

.pagination-container {
  display: flex;
  align-items: center;
  position: absolute;
  bottom: 0;
  justify-content: center;
}
.pagination-number,
.pagination-button {
  font-size: 1.1rem;
  background-color: transparent;
  border: none;
  margin: 0.25rem 0.25rem;
  cursor: pointer;
  height: 2.5rem;
  width: 2.5rem;
  border-radius: 0.2rem;
}
.pagination-number:hover,
.pagination-button:not(.disabled):hover {
  background: #fff;
}
.pagination-number.active {
  color: #fff;
  background: #0085b6;
}

.searchBox {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

input[type="text"] {
  height: 7vh;
  width: 400px;
  min-width: 250px;
  text-align: center;
  box-shadow: 5px 5px 5px grey;
  border-radius: 8px;
  margin: 4%;
}

.search {
  background-color: rgb(51, 51, 167);
  color: white;
  border: none;
  border-radius: 25px;
  margin: 4%;
  height: 50px;
  width: 100px;
  padding: 0.5rem 1rem;
  transition: width 1s;
}
.search:hover {
  width: 10%;
}

.card-body button {
  margin: 2% 3%;
}

#explore-exercise {
  display: flex;
  justify-content: space-evenly;
  flex-wrap: wrap;
  padding: 3%;
}

.exercise-type {
  height: 30vh;
  text-align: center;
  color: rgb(37, 36, 34);
  margin: 1%;
}
.exercise-type p {
  font-weight: 700;
}
.exercise-type img {
  border-radius: 50%;
  width: 126px;
  flex: 10%;
  height: 126px;
}

.footer {
  color: white;
  font-size: 30px;
}

footer {
  background-color: black;
  padding: 3%;
}

.rightpart p {
  font-size: 30px;
}

.specificExercise {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 5%;
  align-items: center;
  margin: 3% auto;
  border-radius: 8px;
  box-shadow: 5px 5px 22px black;
  width: 90%;
}

.hidden {
  display: none !important;
}

.leftpart {
  flex: 55%;
}
.rightpart {
  flex: 40%;
}
.leftpart img {
  width: 80%;
}

@media (max-width: 800px) {
  .leftpart {
    flex: unset;
    flex: 100%;
  }
  input[type="text"] {
    min-width: unset;
  }
}
@media (max-width: 450px) {
  .left {
    flex: unset;
    flex: 60%;
  }
  .right {
    height: 40vh;
  }
  .searchBox {
    margin-top: 24vh;
  }
  iframe {
    width: 90%;
  }
}
.swiper {
  width: 100%;
  height: 100%;
}

.swiper-slide {
  text-align: center;
  font-size: 18px;
  background: #fff;

  /* Center slide text vertically */
  display: -webkit-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  flex-direction: column;
  font-weight: 700 !important;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
}

.swiper-slide img {
  display: block;
  width: 50%;
  height: 100%;
  object-fit: cover;
}
.swiper {
  padding: 6% 5%;
  box-shadow: 5px 4px 13px grey;
  border-radius: 9px;
  margin: 0 4%;
  width: 94%;
}

.exercise-heading {
  margin: 10% 23% 5% !important;
}

.mansi {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-evenly;
  box-shadow: 3px 1px 13px grey;
  width: 90%;
  margin: 4% auto;
  border-radius: 14px;
}
.mansi div {
  margin: 3% 0;
}

#spinner:not([hidden]) {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

#spinner::after {
  content: "";
  width: 80px;
  height: 80px;
  border: 2px solid #f3f3f3;
  border-top: 3px solid #f25a41;
  border-radius: 100%;
  will-change: transform;
  animation: spin 1s infinite linear;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}