html {
  scroll-behavior: smooth;
}
h2, h3, h4, .nav-item, #transition, footer {
  text-align: center;
}
/* ******************* HEADER **************** */
.collapse {
  margin-left: 4%;
}
.nav-item {
  color: darkslategray;
  font-weight: bold;
  padding-right: 45px;
}
header {
  background: url(./media/main.jpg)no-repeat 50% 50%;
  background-size: cover;
  height: 100vh;
  border-radius: 0px 0px 20px 20px;
  margin-bottom: 40px;
}
h1 {
  font-size: 5em;
  padding: 200px 0 0 20%;
  text-shadow: -3px 3px 2px #BCF5A9;
  animation: titre ease 5s;
}
@keyframes titre {
  0% {
    opacity: 0;
    transform: translateY(350px);
  }
  100% {
    opacity: 1;
    transform: translateY(0px);
  }
}
/* **************************** LEFT PART ************************ */
#leftPart {
  background-color: #BCF5A9;
  border-radius: 20px;
  padding: 25px;
}
.elements {
  padding: 70px 0;
}
.elements img {
  border-radius: 50%;
  width: 200px;
}
.elements p {
  font-size: 1.2em;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  overflow: hidden;
  padding-right: 20px;
}
.elements .button {
  text-align: right;
  margin: 15px 4% 0 0;
}
/* ************************** RIGHT PART ************************* */
#rightPart {
  background-color: #9B6833;
  border-radius: 20px;
  padding: 20px;
}
.tips {
  height: 200px;
  width: 200px;
  margin: 20px auto;
}
.tips h4 {
  position: relative;
  color: green;
  top: 50%;
  transform: translateY(-50%);
  text-shadow: 1px 1px 0 #BCF5A9,1px -1px 0 #BCF5A9,-1px 1px 0 #BCF5A9,-1px -1px 0 #BCF5A9,1px 0px 0 #BCF5A9,0px 1px 0 #BCF5A9,-1px 0px 0 #BCF5A9,0px -1px 0 #BCF5A9;
}
.tips:hover {
  transform: scale(1.08);
  opacity: 0.7;
  transition: ease-out 0.2s;
}

#transition {
  padding: 50px 0;
}
#transition img{
  animation: rateau ease 12s;
  animation-iteration-count: infinite;
  transform-origin: 50% 50%;
  animation-fill-mode:forwards; /*when the spec is finished*/
}

@keyframes rateau{
  0% {
    transform:  translate(0px,0px)  ;
  }
  9% {
    transform:  translate(79px,-22px)  ;
  }
  26% {
    transform:  translate(-4px,-5px)  ;
  }
  33% {
    transform:  translate(80px,18px)  ;
  }
  48% {
    transform:  translate(-17px,-13px)  ;
  }
  56% {
    transform:  translate(57px,-45px)  ;
  }
  71% {
    transform:  translate(-11px,-12px)  ;
  }
  82% {
    transform:  translate(72px,7px)  ;
  }
  100% {
    transform:  translate(0px,0px)  ;
  }
}
/* *************************** NEWSLETTER ********************** */
#newsletter {
  background: url(./media/newsletter.jpeg) no-repeat 50% 50%;
  background-size: cover;
  height: 370px;
  width: 70%;
  min-width: 450px;
  margin: 0 auto;
  border-radius: 50%;
  margin-bottom: 70px;
}
#newsletter h4 {
  margin-top: 15px;
  padding: 100px 0 20px 0;
  font-size: 2em;
  text-shadow: 1px 1px 0 #BCF5A9,1px -1px 0 #BCF5A9,-1px 1px 0 #BCF5A9,-1px -1px 0 #BCF5A9,1px 0px 0 #BCF5A9,0px 1px 0 #BCF5A9,-1px 0px 0 #BCF5A9,0px -1px 0 #BCF5A9;
}
#newsletter .input-group {
  width: 40%;
  min-width: 350px;
  margin: 0 auto;
}
footer {
  background-color: #BCF5A9;
  padding: 15px 0 4px 0;
}
/* *********************** MEDIA QUERIES ********************** */
@media screen and (max-width: 990px) {
  #rightPart {
    display: flex;
  }
  #rightPart h2 {
    display: none;
  }
  .tips {
    height: 130px;
    width: 130px;
  }
}
@media screen and (max-width: 790px) {
  h1 {
    font-size: 3em;
  }
  .elements {
    padding: 30px 0;
  }
  .elements img {
    max-width: 140px;
    margin-top: 40px;
  }
  #transition img {
    width: 250px;
  }
  .tips {
    height: 90px;
    width: 90px;
  }
  .tips h4 {
    font-size: 0.9em;
  }
}
@media screen and (max-width: 580px) {
  .elements {
    padding: 15px 0;
    text-align: center;
  }
  .elements img {
    margin-bottom: 10px;
  }
  nav {
    display: none !important;
  }
}