/* Writing font */
body{
	font-family: 'Ubuntu', arial;
	scroll-behavior: smooth;
}

a{
	color: blue;
}

/* header */
header {
	position: sticky;
	top: 0;
	z-index: 100;
	scroll-behavior: smooth;
}

#menufond{
width: 100%;
background: linear-gradient(#7cb7ff, #1b81ff);
border-radius: 0px 0px 4px 4px;
box-shadow: 0px 0px 2px 2px rgba(0, 0, 0, 0.2),
			0px 1px 0px 1px rgba(255, 255, 255, 0.5) inset,
			0px -3px 0px 1px rgba(0, 0, 0, 0.1) inset;
overflow : hidden;
height : 50px;
	scroll-behavior: smooth;
}

#menu{
	font-family: "Trebuchet MS";
    display: table;
	margin-right : auto;
	margin-left : auto;
	margin-top : 0;
	padding : 0;
	scroll-behavior: smooth;
}

#menu li{
    display: table-cell;
	width: 180px;
	transition:1s;
	scroll-behavior: smooth;
}

#menu li:hover{
	width:190px;
	transition:1s;
	scroll-behavior: smooth;
}

#menu a{
	display: block;
	line-height: 46px;
    text-align: center;
	text-decoration : none;
	color : white;
	text-shadow: 0 1px 0 rgba(0, 0, 0, 0.4);
	transition : text-shadow,color 1s;
	position:relative;  /* utilse pour l'affichage du point */
	scroll-behavior: smooth;
	
}

#menu a:hover{
	background: rgba(255,255,255,0.1);
	border-bottom: solid 4px rgba(255,255,255,0.8);
	color : #373737;
	text-shadow: 0 1px 0 rgba(255, 255, 255, 0.4);
	transition : text-shadow,color 1s;
	scroll-behavior: smooth;
}

#menu a::before{
    content: '';
    position: absolute;
    left: 50%;
    bottom: 5px;
	transition:1s;
	width: 0;
	height: 0;
	border-left: 3px solid transparent;
    border-right: 3px solid transparent;
    border-top: 5px solid rgba(0,0,0,0.2);
	scroll-behavior: smooth;
}

#menu a:hover::before{
	border-color: rgba(255, 255, 255, 0.5) transparent transparent;
	box-shadow: 0 -1px 0 rgba(0, 0, 0, 0.3);
	transition:1s;
	scroll-behavior: smooth;
}

/* home video */
* {
	margin: 0;
}

.bloc {
	position: relative;
	height: 100vh;
	width: 100%;
	overflow: hidden;
}

/* cutrain */
.bloc .curtain{
	position: absolute;
	width: 100%;
	height: 100%;
	z-index: -90;
	content: "";
	background-color: #0000007d;
}

/* video */			
.bloc video{
	position: absolute;
	min-width: 100%;
	min-height: 100%;
	z-index: -100;
}

/* #home section */
#home{
	color: white;
	scroll-behavior: smooth;
}

#homeTitle{
	font-size: 100px;
}

#welcomeParagraph{
	font-size: 60px;
}

/* #about section */
#aboutTitle{
	font-size: 60px;
}

#aboutParagraph{
	font-size: 30px;
}

/* #download section */

#downloadTitle{
	font-size: 60px;
}

#downloadParagraph{
	font-size: 30px;
}

/* dropdown */
*,
*::before,
*::after {
  box-sizing: border-box;
}

select {
  appearance: none;
  background-color: transparent;
  border: none;
  padding: 0 1em 0 0;
  margin: 0;
  width: 100%;
  font-family: inherit;
  font-size: inherit;
  cursor: inherit;
  line-height: inherit;
  outline: none;
}

select::-ms-expand {
  display: none;
}

:root {
  --select-border: #777;
  --select-focus: blue;
  --select-arrow: var(--select-border);
	scroll-behavior: smooth;
}

.select {
  width: 100%;
  min-width: 15ch;
  max-width: 30ch;
  border: 1px solid var(--select-border);
  border-radius: 0.25em;
  padding: 0.25em 0.5em;
  font-size: 1.25rem;
  cursor: pointer;
  line-height: 1.1;
  background-color: #fff;
  background-image: linear-gradient(to top, #f9f9f9, #fff 33%);
  display: grid;
  grid-template-areas: "select";
  align-items: center;
  position: relative;
}

.select::after {
  content: "";
  width: 0.8em;
  height: 0.5em;
  background-color: var(--select-arrow);
  clip-path: polygon(100% 0%, 0 0%, 50% 100%);
  justify-self: end;
	scroll-behavior: smooth;
}

select,
.select:after {
  grid-area: select;
	scroll-behavior: smooth;
}

select:focus + .focus {
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  border: 2px solid var(--select-focus);
  border-radius: inherit;
	scroll-behavior: smooth;
}

/* contact */
/* contact button */
.contact-button {
    padding: 10px 40px;
    float: left;
    border-radius: 10px;
    font-family: 'Ubuntu', arial;
    font-size: 25px;
    color: #ffffff;
    text-decoration: none;
    background-color: #666666;
    border-bottom: 5px solid #979797;
    text-shadow: 0px -2px #303030;
    transition: all 0.1s;
    -webkit-transition: all 0.1s;
    width: 235px;
	scroll-behavior: smooth;
}

.contact-button:active {
    transform: translate(0px,5px);
    -webkit-transform: translate(0px,5px);
    border-bottom: 1px solid;
	scroll-behavior: smooth;
}

footer table tbody a{
	color: #959595;
	font-size: 32px;
	scroll-behavior: smooth;
}

/* Howto */
.tutorial-box{
	border-radius: 25px;
	border-color: blue;
    border-width: 5px;
    border-style: inset;
    border-image: initial;
	scroll-behavior: smooth;
}

a[ id= "homesectiontop" ]:target ~ #homesectiontop {
-webkit-transform: translateY( 0px);
transform: translateY( 0px );
}