*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-weight: 400;
    font-style: normal;
}
.separation{
    display: flex;
    align-items: center;
    justify-content: center;
    width: 250px;
    margin: 20px auto;
}
.separation hr{
    display: inline;
    width: 100px;
    height: 2px;
    line-height: 1px;
}
/* MENU */
#menu{
    font-family: "Tangerine", cursive;
    width: 100%;
    position: fixed;
    background-color: rgba(255, 255, 255, 0.7);
    z-index: 1;
}
#menu ul{
    display: flex;
    justify-content: center;
    align-items: center;
}
#menu ul li{
    margin: 10px;
    padding: 10px;
    list-style-type: none;
}
#menu ul li a{ 
    position: relative;
    font-size: 2em;
    font-weight: bold;
    padding: 5px 20px;
    border-radius: 10px;
    text-decoration: none;
    color: black;
}
#menu ul li a::after{
    content: "";
    position: absolute;
    bottom: -3px;                
    left: 50%;                   
    width: 0;
    height: 2px;
    background-color: #C7835A;     
    transition: all 0.3s ease;   
    transform: translateX(-50%); 
}
#menu ul li a:hover::after{
    width: 100%;
}
/* ACCEUIL */
section:nth-of-type(1){
    font-family: "Tangerine", cursive;
    height: 100vh;
}
section:nth-of-type(1){
    background-image: url("spa-privatif-paris.jpg");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}
.screen-1-title{
    display: flex;
    flex-direction: column; 
    justify-content: center;  /* centre horizontalement */
    align-items: center;
    height: 100vh;
    background-color: rgba(255, 255, 255, 0.4);
}
.screen-1-title h1{
    margin: 30px 10px;
    font-size: 7em;
}
.screen-1-title h2{
    text-align: center;
    margin: 20px 10px;
    font-size: 3em;
}
/* A SAVOIR */
section:nth-of-type(2){
    display: flex;
    flex-direction: column;
    position: relative;
    height: 80vh;
    justify-content: center;
    margin: 10px;
}
section:nth-of-type(2) h1{
    font-family: "Tangerine", cursive;
    text-align: center;
    font-size: 4em;
    text-decoration: underline #C7835A;
}
section:nth-of-type(2) p{
    font-family: "Montserrat", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    text-align: center;
    margin: 20px 0;
}
.coin-gauche{
    position: absolute;
    top: 0;
    left: 0;
    transform: rotate(90deg);
}
.coin-droite{
    position: absolute;
    bottom: 0;
    right: 0;
    transform: scaleX(-1);
}
section:nth-of-type(3) h1{
    font-family: "Tangerine", cursive;
    text-align: center;
    font-size: 4em;
    text-decoration: underline #C7835A;
}
/* PRESENTATION */
section:nth-of-type(3) h1 img{
    padding: 20px;
    vertical-align: middle;
}
section:nth-of-type(3) #title{
    font-family: "Montserrat", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    font-size: 2em;
    text-align: center;
    padding: 20px 0px;
}
section:nth-of-type(3) #sejour{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 50px 20px;
    padding: 30px 0px;
    box-shadow: 0px 15px 25px -5px #BDBDBD;
    border: 2px solid #C7835A;
}
#sejour ul li{
    font-family: "Montserrat", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    font-size: 1em;
    line-height: 2.5;
}
section:nth-of-type(3) ul li{
    list-style-type: none;
    text-align: center;
}
/* VIDEO PRESENTATION */
.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* Ratio 16:9 = 9 / 16 = 0.5625 */
    height: 0;
    overflow: hidden;
}
.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}
/* SLIDER */
.slider-container {
    margin: 10px;
    text-align: center;
    max-width: 600px;
    font-family: Arial, sans-serif;
}
.slider-title {
    margin-bottom: 10px;
}
.slider {
    position: relative;
    max-width: 100%;
    height: 620px;
    overflow: hidden;
    margin: 20px 2px;
    box-shadow: 0px 15px 25px -5px #BDBDBD
}
.slide {
    font-family: "Roboto Flex", sans-serif;
    margin: 10px 0;
    font-size: 1em;
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}
.slide img {
    width: 100%;
    height: 70%;
    object-fit: cover;
}
.slide h2{
    font-family: "Tangerine", cursive;
    font-size: 3em;
}
.description {
font-family: "Montserrat", sans-serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
  margin: 10px;
}
.slide.active {
    opacity: 1;
}
/* Boutons */
.prev, .next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    cursor: pointer;
}

.prev img, .next img{
    width: 30px;
    height: 50px;
}

.prev { left: 2px; }
.next { right: 2px; }

.prev:hover, .next:hover {
    background: rgba(255,255,255,0.5);
}
/* Dots */
.dots {
    margin-top: 10px;
}
.dot {
    display: inline-block;
    width: 12px; height: 12px;
    margin: 0 5px;
    border-radius: 50%;
    background: gray;
    cursor: pointer;
}
.dot.active {
    background: black;
}
/* TARIF */
section:nth-of-type(4) h1{
    font-family: "Tangerine", cursive;
    text-align: center;
    font-size: 4em;
    text-decoration: underline #C7835A;
}
section:nth-of-type(4) p{
    font-family: "Montserrat", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    font-size: 1.5em;
    text-align: center;
    color: whitesmoke;
    text-decoration: underline #C7835A;
    text-decoration-thickness: 2px;
}
section:nth-of-type(4) ul{
    list-style-type: none;
    margin: 15px;
    text-align: center;
    line-height: 2.5;
}
section:nth-of-type(4) .info-imp{
    font-family: "Montserrat", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    margin: 30px 20px;
    padding: 30px 20px;
    box-shadow: 0px 15px 25px -5px #BDBDBD;
    background-color: #ce9a79;
}
section:nth-of-type(4) .card{
    font-family: "Montserrat", sans-serif;
    font-optical-sizing: auto;
    font-weight: 400;
    font-style: normal;
    margin: 30px 20px;
    padding: 30px 20px;
    box-shadow: 0px 15px 25px -5px #BDBDBD;
    background-color: #87B37D;
}