:root {
    --main-text-color: #ecf0f1;
    --nav-text-color-hover: #36456e;
    --container-text-color: #000000;
    --titre-text-color: #000a5f;
    --titre-text-color-hover: gold;
    --sous-titre-text-color: orange;
    --lien-text-color: blue;


    --main-bg-color: #C0DFEF;
    --hr-color: #ecf0f1;
    --header-footer-bg-color: #6E8EE6;
    --body-logiciel-bg-color: #ADCAD9;
    --contact-bg-color-hover: rgba(0, 0, 0, 0.4);

    --para-font-size: 15px;
    --h2-font-size: 28px;
    --h1-font-size: 50px;
    --titre-font-size: 25px;
    --form-font-size: 20px;
    --nav-font-size: 17px;
}

* {
    font-family: 'Open Sans', serif;
    margin: 0;
    padding: 0;
    text-align: justify;
    scroll-behavior: smooth;
}
header *, footer * {
    color: var(--main-text-color);
}

body {
    background-color: var(--header-footer-bg-color);
}

main {
    background-color: var(--main-bg-color);
}
h1 {
    font-size: var(--h1-font-size);
}

* p {
    font-size: var(--para-font-size);
}

section h1 {
    text-align: center;
    font-weight: 900;
    color: var(--titre-text-color);
    padding-bottom: 50px;
}

section {
    margin-left: auto;
    margin-right: auto;
}


.grille {
    padding: 25px 10px;
    background-color: var(--body-logiciel-bg-color);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-column-gap: 20px;
    grid-row-gap: 0;
    margin: 0 auto 50px;
}

.image {
    grid-column: 1;
    grid-row: 2/3;
}

.image2 {
    background-color: var(--body-logiciel-bg-color);
    grid-column: 2;
    grid-row: 1/3;
    margin-left: 70px;
    padding-bottom: 10px;
}

.contactPage .titre1 {
    background-color: var(--body-logiciel-bg-color);
    font-size: var(--h2-font-size);
    margin-top: -5px;
    color: var(--titre-text-color);
    text-align: justify;
    grid-column: 2;
    grid-row: 1;
}

.contactPage .titre2 {
    background-color: var(--body-logiciel-bg-color);
    font-size: var(--h2-font-size);
    color: var(--titre-text-color);
    text-align: center;
    grid-column: 1;
    grid-row: 1;
}

.contactPage .paragraphe1 {
    background-color: var(--body-logiciel-bg-color);
    margin-top: -5px;
    grid-column: 2;
    grid-row: 2;
}

.contactPage .paragraphe2 {
    background-color: var(--body-logiciel-bg-color);
    margin-top: -5px;
    grid-column: 1;
    grid-row: 2;
    padding-left: 10px;
}

.contactPage .lien1 {
    grid-column: 2;
    grid-row: 2;
}

.contactPage .lien2 {
    grid-row: 2;
    grid-column: 1;
}

.objet {
	background-color: var(--body-logiciel-bg-color);
	margin-left: 12%;
	margin-right: 12%;
    color: var(--container-text-color)
}

.Titre{
  text-align: center;
  font-size: var(--titre-font-size);
  margin: 0;
  padding: 0;
  color: var(--main-text-color);
}

header{
    background-color: var(--header-footer-bg-color);
    position: sticky;
    position: -webkit-sticky;
    top: 0;
    z-index: 3;
}

header nav {
    display: table;
    margin: 0 auto;
    padding: 20px 20px;
}

header nav ul, nav li {
    font-size: var(--nav-font-size);
    display: inline;
    list-style: none;
    padding: 5px 20px;
}

header nav a {
    text-decoration: none;
    background-color: transparent;
    color: inherit;
    font-weight: bold;
    padding: 10px 10px;
    transition: 0.5s;
}

header nav a:hover {
    color: var(--nav-text-color-hover);
    transition: 0s;
    border-bottom: 3px solid var(--nav-text-color-hover);
}

.active{
    color: var(--nav-text-color-hover);
    border-bottom: 3px solid var(--nav-text-color-hover);
}
.active:hover{
    color: var(--main-text-color);
    border-bottom: 3px solid var(--main-text-color);
}

.sous{
    display: none;
    box-shadow: 0 1px 2px #CCC;
    background-color: white;
    position: absolute;
    width: 300px;
    z-index: 100;
}

.sous li{
    float: none;
    width: 100%;
    text-align: left;
    list-style-type: none;
    padding: 5px;
    color: black;
}

.sous li:hover {
    background-color: black;
    color:white;
}

.deroulant:hover .sous{
    display: block;
}
.deroulant > a {
    color: var(--nav-text-color-hover);
    font-size: var(--titre-font-size);
    cursor: pointer;
}

.deroulant > a::after{
    content:" ▼";
    font-size: var(--para-font-size);
}

section .article {
    display: grid;
}

.pre-header{
    background-color: var(--header-footer-bg-color);
    display: grid;
    grid-template-columns: 20% 60% 20%;
    align-content: space-around;
    width: 60%;
    margin: 0 auto;
    z-index: 3;
}

.btn-header {
    grid-column-start: 3;
    align-self: center;
}

.titre-site{
    grid-column-start: 1;
    color: var(--main-text-color);
    background-color: var(--header-footer-bg-color);
    margin: auto;
    display: flex;
    padding: 20px 20px;
    cursor: pointer;
}

.titre-site img {
    align-items: center;
    width: 75px;
    height: 75px;
}

.titre-site h1 {
    align-self: center;
    font-family: 'Caveat', sans-serif;
    padding-left: 10px;
    font-size: var(--h2-font-size);
 }

.container {
    display: grid;
    margin: 0 auto;
    width: 70%;
}


.article1.container{
    display: flex;
}

main > .article1 {
    background-image: url("/img/people-motion-walk-asia-professional-together.jpg");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    height: 600px;
}

main section .article1{
    align-self: center;
    align-items: center;
}

.container * {
    color: var(--container-text-color);
}

footer {
    background-color: var(--header-footer-bg-color);
}

footer .container.containerFooter {
    display: grid;
    grid-template-columns: 40% 10% 25% 25%;
    padding-top: 20px;
    padding-bottom: 20px;
}

footer .txt {
    grid-column-start: 1;
}

footer .img1 {
    grid-column-start: 3;
}

footer .img2 {
    margin: auto;
    grid-column-start: 4;
}

footer img {
    margin: auto;
    height: 100px;
    cursor: pointer;
}

footer .author{
    text-align: center;
    padding-bottom: 5px;
}

hr {
    border: 1px solid var(--hr-color);
    border-radius: 25px;
    overflow: visible;
    height: 0;
    margin: 5px 5px;
}

.intro{
    text-align: center;
}

.menugauche{
    width: 20%;
    background-color:var(--header-footer-bg-color);
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
    margin-left: -20%;
    margin-right: 0;
    float: left;
}
.menugauche ul {
    margin: 0;
    padding: 0;
    overflow: hidden;
}
.menugauche li{
    list-style-type: none;
}
.menugauche a{
    display: block;
    text-align: center;
    text-decoration: none;
    padding: 10px 12px;
    border-radius: 15px;
    color: var(--main-text-color);
}
.menugauche a:hover{
    background-color: var(--nav-text-color-hover);
    color: white;
    border-radius: 25px;
}
.menugauche h2 {
    font-size: var(--titre-font-size);
    line-height: 1em;
}
.menudufutur{
    position: sticky;
    top: 100px;
    right: 50px;
}

.objet {
    background-color: var(--body-logiciel-bg-color);
    margin-right: auto;
    margin-left: auto;
    display: grid;
    width:850px;
    grid-template-columns: repeat(2, 1fr);
    grid-column-gap: 20px;
    grid-row-gap: 0;
    margin-top: 50px;
    padding-right: 10px;
    padding-left: 10px;
    border-radius: 10px;
}

h1{
    font-size: var(--titre-font-size);
    grid-column : 1/3;
    grid-row : 1;
    text-align: center;
}
/*........................................................CUILLERE ANTI-TREMBLEMENT......................................................;*/


.paragraphe1 {
    grid-column : 2;
    grid-row: 2;
}
.image1{

    border-radius: 10px;
    grid-column: 1;
    grid-row: 2/3;
    width: 410px;
    height: 220px;
    margin-top: 20px;
}
/*..........................................................Tobii PC Eye 5...........................................................*/


.paragraphe2 {
    grid-column : 1;
    grid-row: 2/3;
}
.image2{

    border-radius: 10px;
    grid-column: 2;
    grid-row: 2/3;
    width: 455px;
    height: 215px;
    margin-top: 20px;
}

/*..........................................................LEKA...........................................................*/


.paragraphe3 {
    grid-column : 2;
    grid-row: 2/3;
}
.image3{

    border-radius: 10px;
    grid-column: 1;
    grid-row: 2/3;
    width: 300px;
    height: 300px;
    margin-top: 20px;
}
/*..........................................................texte entre objet et logiciel...........................................................*/

.logiciel{
    font-size: var(--titre-font-size);
    text-align: center;
    border-top: 30px;
}
.logiciel2{
    text-align: center;
}

/*..........................................................SteadyMouse2...........................................................*/

.paragraphe4 {
    grid-column : 1;
    grid-row: 2/3;
    margin-left: 10px
}
.image4{

    border-radius: 10px;
    grid-column: 2;
    grid-row: 2/3;
    width: 345px;
    height: 220px;
    margin-top: 10px;
    margin-left: 30px;

}


/*..........................................................FACIL'iti...........................................................*/

.paragraphe5 {
    grid-column : 2;
    grid-row: 2/3;
}
.image5{

    border-radius: 10px;
    grid-column: 1;
    grid-row: 2/3;
    width: 427px;
    height: 265px;
    margin-top: 20px;
}
.info{
    margin-top: 50px;
    text-align: center;
    margin-bottom: 50px;
}

/*------------------------page association-----------------------------------------*/

.asso{
    background-color: var(--body-logiciel-bg-color);
    display: grid;
    width:850px;
    grid-template-columns: repeat(2, 1fr);
    grid-column-gap: 20px;
    grid-row-gap: 0;
    padding-right: 10px;
    padding-left: 10px;
    border-radius: 10px;
    margin: 50px auto;
}
.asso1 {
    font-size: var(--titre-font-size);
    grid-column : 1/3;
    grid-row : 1;
    text-align: center;
    color: var(--container-text-color);
    text-decoration: none;
}
.asso a:hover{
    text-decoration: underline;
}

.asso p {
    color: var(--container-text-color)
}

.imgasso{
    grid-column: 1;
    grid-row: 2/3;
    width: 320px;
    height: 185px;
    margin-top: 50px;
    margin-left: 50px;
}
.imgcoridys{
    grid-column: 1;
    grid-row: 2/3;
    margin-top: 60px;
    width: 436px;
    height: 183px;
}
.lien{
    color: var(--lien-text-color);
    text-decoration: none;
}
.titre1 {
    text-align: center;
    color: var(--titre-text-color);
    font-size: var(--h1-font-size);
    padding-top: 50px;
}

.paragraphe {
    margin-left: auto;
    margin-right: auto;
    padding: 10px;
    width: 20%;
    background-color: var(--body-logiciel-bg-color);
    border-radius: 10px;
}

a.lien1:hover {
    color: var(--titre-text-color-hover);
    text-decoration: none;
}

.grille3 {
    padding: 25px 10px;
    background-color: var(--body-logiciel-bg-color);
    margin: 25px auto 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-column-gap: 20px;
    grid-row-gap: 0;
    border-radius: 10px;
}

.soustitre {
    color: var(--sous-titre-text-color);
    font-size: var(--h2-font-size);
    margin-top: 40px;
    margin-left: 18%;
}

.container2 img {
    width: 100%;
    height: auto;
}

.container2 {
    position: relative;
    /* width: 50%; */
}

.overlay {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: .5s ease;
    background-color: var(--contact-bg-color-hover);
}

.container2:hover .overlay {
    opacity: 1;
}

.texte {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--main-text-color);
}

.texte2 {
    margin: 50px auto auto;
    width: 60%;
    text-align: center;
    padding-top: 10px;
    border-top: solid white 2px;
}
.formu {
    margin-left: 12%;
    margin-bottom: 50px;

}

.nom, .mail, .message {
    font-size: var(--para-font-size);
    font-style: italic;
}

.gras {
    font-weight: bold;
}

input,
textarea {
    background-color: rgb(149, 149, 149);
    padding: 7px 20px;
    border: solid 2px white;
    border-radius: 10px;
    color: var(--main-text-color);
}

input[type=submit] {
    font-size: var(--form-font-size);
    font-weight: bold;
    color: var(--container-text-color);
    border: solid 1px white;
    padding: 10px 30px;
    border-radius: 10px;
}

.poster {
    margin-top: 25px;
    font-size: var(--form-font-size);
    margin-left: 35%;
    color: var(--titre-text-color);
    font-style: italic;
}

.imgposter{
    margin-left: 40%;
    margin-top: 5px;
    background-color: var(--body-logiciel-bg-color);
    padding: 15px;
    border: solid 3px #ecf0f1;
    border-radius: 10px;
}

.grandtitre {
    text-align: center;
    font-weight: 900;
    font-size: var(--h1-font-size);
    color: var(--titre-text-color);
    padding-bottom: 50px;
}

section {
    margin: 0 auto;
}

.grille {
    padding: 25px 10px;
    background-color: var(--body-logiciel-bg-color);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-column-gap: 20px;
    grid-row-gap: 0;
    margin: 0 auto 50px;
    border-radius: 10px;
}

.grille2 {
    padding: 25px 10px;
    background-color: var(--body-logiciel-bg-color);
    margin: 50px auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-column-gap: 20px;
    grid-row-gap: 0;
    border-radius: 10px;
}

.infoPage .image {
    grid-column: 1;
    grid-row: 1/3;
    width: 500px;
    height: 300px;
    margin-top: 50px;
    border-radius: 10px;
}

.infoPage .image2 {
    grid-column: 2;
    grid-row: 1/3;
    margin-left: 70px;
    margin-bottom: 10px;
    border-radius: 10px;
}

.infoPage .image3 {
    grid-column: 2;
    grid-row: 2/3;
    width: 512px;
    height: 200px;
}

main h2 {
    font-size: var(--h2-font-size);
    color: var(--sous-titre-text-color);
    text-align: center;
}

.titre1 {
    margin-top: -5px;
    grid-column: 1/3;
    grid-row: 1;
}

.titre2 {
    grid-column: 1;
    grid-row: 1;
}

.titre3 {
    grid-column: 1/4;
    grid-row: 1;
}

.paragraphe1 {
    margin-top: -5px;
    grid-column: 2;
    grid-row: 2;
}

.paragraphe2 {
    margin-top: -5px;
    grid-column: 1;
    grid-row: 2;
    padding-left: 10px;
}

.paragraphe3 {
    grid-column: 1;
    grid-row: 2;
}

.paragraphe4 {
    margin-top: -10px;
    grid-column: 3;
    grid-row: 2;
}

.infoPage .lien1 {
    font-style: italic;
    grid-column: 2;
    grid-row: 2;
    color: var(--container-text-color);
}

.infoPage .lien2 {
    font-style: italic;
    grid-row: 2;
    grid-column: 1;
    color: var(--container-text-color);
}

.infoPage .lien3 {
    font-style: italic;
    grid-column: 2;
    color: var(--container-text-color);
}

.infoPage main a {
    text-decoration: none;
}

.infoPage main a:hover {
    color: var(--titre-text-color-hover);
}