.flex {
  display: flex;
}
.image_title {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 50px;
}
.image_title img {
  margin-left: -300px;
  max-width: 900px;
  border-radius: 50%;
  width: 100%;
}
.image_title header {
  font-size: 50px;
  font-weight: bold;
  text-transform: uppercase;
}
section {
  width: 100%;
  height: auto;
  position: relative;
  margin-bottom: 40px;
}
.introScreen {
  color: #fff;
  position: relative;
}
.introScreen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.introScreen .text {
  position: absolute;
  right: 0;
  top: 20%;
  width: 100%;
  max-width: 510px;
  height: auto;
}
.introScreen .text p:nth-child(1) {
  font-family: medium;
  font-size: 20px;
  margin-bottom: 30px;
}

.introScreen .text h2 {
  font-size: 50px;
  line-height: 4rem;
  text-transform: capitalize;
}
.introScreen .text h2 span {
  color: rgb(255, 123, 0);
}
.introScreen .text p:nth-child(3) {
  font-family: regular;
  font-size: 18px;
  color: #ddd;
}
.introScreen .text form {
  width: 90%;
  margin-block: 10px;
  margin-right: 10%;
  height: 70px;
  background: #fff;
  border-radius: 7px;
  padding: 5px;
}
.introScreen .text form input {
  width: calc(100% - 170px);
  height: 100%;
  outline: none;
  border-width: 0px;
  background: transparent;
  font-family: medium;
}
.introScreen .text button {
  width: 150px;
  height: 95%;
  outline: none;
  border-width: 0px;
  font-size: 18px;
  border-radius: 4px;
  background: rgb(255, 136, 0);
}
#features {
  display: flex;
  padding-top: 100px;
  padding-left: 50px;
  padding-bottom: 50px;
  align-items: center;
  color: #000;
}
#features .text {
  width: 100%;
  max-width: 400px;
  margin-right: 30px;
}
#features .text h2 {
  font-size: 40px;
}
#features .text h2 span {
  color: orangered;
}
#features .text button {
  width: 150px;
  height: 55px;
  outline: none;
  border-width: 0px;
  font-size: 18px;
  border-radius: 4px;
  background: rgb(29, 28, 26);
  color: orangered;
}
#features .items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}
#features .items .box {
  width: 300px;
  padding: 0px 10px;
  height: 330px;
  font-family: medium;
}

#features .items .box img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 5px;
}
#features .items .box h1 {
  color: rgb(1, 50, 78);
  font-family: medium;
  text-transform: lowercase;
}
#features .items .box p .fa-star {
  color: orangered;
}
#features .items .box .flex {
  font-family: medium;
  justify-content: center;
  align-items: center;
  font-size: 20px;
}
#features .items .box button {
  width: 150px;
  height: 45px;
  margin-left: 10px;
  outline: none;
  border-width: 0px;
  font-size: 18px;
  border-radius: 4px;
  background: orangered;
  color: #fff;
}
#informations img {
  width: 100%;
  max-width: 700px;
  object-fit: cover;
  margin-right: 30px;
}
#informations .text {
  margin-right: 30px;
  color: #000;
}
#informations .text h1 {
  font-size: 45px;
  color: rgb(11, 1, 29);
  text-transform: capitalize;
}
#informations .text h1 span {
  color: orangered;
}
#informations .members {
  align-items: center;
  margin-top: 30px;
}
#informations .members p {
  margin-inline: 10px;
  font-family: medium;
  font-size: 25px;
}
#informations .members p span {
  color: rgb(255, 0, 64);
}
#platform {
  position: relative;
  width: 100%;
  height: auto;
  background-image: url("images/R.jpeg");
  background-size: cover;
  background-position: center center;
}

#platform .text {
  width: 100%;
  height: 100%;
  background-color: #00000091;
  display: flex;
  align-items: flex-end;
}
#platform .text h1 {
  font-size: 45px;
  color: rgb(255, 255, 255);
  text-transform: capitalize;
}
#platform .text h1 span {
  color: orangered;
}

#platform .options {
  padding: 20px;
  display: flex;
  width: 100%;
  height: auto;
}
#platform .options .opt {
  margin-inline: 10px;
  box-shadow: 0px 0px 4px 0px #ddd;
  background-color: #000000a6;
}
#platform .options .opt h2 {
  color: #ffffff;
  font-size: 24px;
  margin: 10px;
}

#platform .options .opt p {
  font-family: medium;
}

#events h1:nth-child(1) {
  color: rgb(1, 50, 78);
  font-family: medium;
  text-transform: lowercase;
  font-size: 45px;
  text-align: center;
}
#events .items {
  align-items: center;
  padding: 50px 30px;
  background-color: rgb(255, 123, 0);
}

#events .options {
  width: 100%;
  align-items: center;
  flex-wrap: wrap;
  justify-content: space-evenly;
  margin-left: 30px;
}
#events .options .item {
  width: 250px;
  height: 350px;
  border-radius: 10px;
  position: relative;
  overflow: hidden;
  margin-block: 10px;
}
#events .options .item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
#events .options .item .title {
  position: absolute;
  bottom: 5%;
  margin-left: 20px;
  width: 200px;
  height: 50px;
  background-color: crimson;
  font-size: 20px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: #fff;
}

.footer {
  background-color: rgb(0, 0, 0);
  width: 100%;
  color: #fff;
  font-family: regular;
}
footer .container {
  width: 100%;
  height: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}
footer .container div:nth-child(1) {
  width: 100%;
}
.footer-top {
  display: flex;
  flex-wrap: wrap;
}

.footer-top ul {
  flex-grow: 0;
  flex-shrink: 0;
  flex-basis: 290px;
  margin: 5px;
}
.footer-top ul li {
  list-style: none;
  margin-block: 20px;
}
a {
  text-decoration: none;
  font-size: 20px;
  color: #fff;
}
.footer-top ul li a {
  text-decoration: none;
  font-size: 20px;
  color: #fff;
}
.footer-top div {
  flex-grow: 0;
  flex-shrink: 0;
  flex-basis: 390px;
  margin: 10px;
}
.footer-top div .logo {
  font-size: 30px;
  color: #fff;
}
.social-list {
  display: flex;
  justify-content: space-between;
}
.social-list li i {
  font-size: 20px;
}

.back-top-btn {
  position: fixed;
  bottom: 20px;
  right: 30px;
  background-color: crimson;
  color: #fff;
  font-size: 22px;
  padding: 12px;
  border-radius: 50%;
  z-index: 3;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-1);
  transition: all 0.3s ease;
}

.back-top-btn.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(-10px);
}
.copyright-link {
  color: #fff;
}
/*-----------------------------------resizing------------------------------*/
@media screen and (max-width: 1100px) {
  #platform,
  #informations {
    padding-inline: 30px;
    flex-direction: column;
    align-items: center;
  }
  #platform .text {
    width: 100%;
  }
}

@media screen and (max-width: 1090px) {
  nav {
    width: 100%;
    display: block;
    height: 65px;
  }
  nav .logo {
    float: left;
  }
  nav svg {
    display: block;
    float: right;
  }
  nav .account {
    display: none;
  }
  nav.active {
    width: 100%;
    min-height: 80vh;
    height: auto;
    background-color: rgba(0, 0, 0, 0.808);
    z-index: 99;
  }
  nav.active,
  nav.active ul,
  nav.active .account {
    display: block;
    margin-top: 20px;
    margin-left: 20px;
  }
  nav.active ul li {
    text-align: left;
    margin-block: 20px;
    width: 100%;
  }
}
@media screen and (max-width: 800px) {
  #features {
    flex-direction: column;
  }
  #features .text {
    width: 100%;
    margin-bottom: 10px;
  }
  .introScreen img {
    height: 100vh;
  }
  .introScreen .text p span {
    color: orangered;
  }
  .introScreen .text form {
    width: 100%;
    margin-right: 0%;
  }
}
@media screen and (max-width: 570px) {
  .footer-top div {
    flex-grow: 0;
    flex-shrink: 0;
    flex-basis: 100%;
    margin: 0px;
  }
  footer p {
    word-wrap: break-word;
  }
  section,
  #informations .text {
    margin-right: 0px;
  }
  .text {
    text-align: center;
  }
  #informations {
    padding-inline: 10px;
  }
  #informations img {
    margin-right: 0px;
  }
  .introScreen .text h2,
  #informations h1,
  #platform .text h1 {
    font-size: 35px;
    padding-left: 5px;
  }
  #features {
    padding: 0px;
  }
  #features .items {
    width: 100%;
  }
  #platform .images {
    width: 100%;
  }
  #platform .options {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, 1fr);
  }
  #platform img:nth-child(3) {
    display: none;
  }
  #platform .options .opt p {
    text-align: left;
  }
  #events .items {
    align-items: center;
    justify-self: center;
    padding: 20px 0px;
  }
  #events .options {
    margin-left: 0px;
  }
}

@media screen and (max-width: 400px) {
  #platform,
  #informations {
    padding-inline: 0px;
  }
  #informations .text h1 {
    width: 100%;
    font-size: 28px;
    word-wrap: break-word;
    padding-left: 5px;
  }
  h1,
  h2 {
    font-size: 25px;
  }
  #platform .images {
    height: auto;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
    grid-template-rows: repeat(7, 1fr);
  }
  #platform img:nth-child(1) {
    grid-column: 2 / 4;
    grid-row: 3 / 7;
  }
  #platform img:nth-child(4) {
    grid-row: 5 / 8;
  }
}