*
{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif;
}
body{
    background: #222;
}
.fond
{
    position: relative;
    width: 100%;
    height: 100vh;
    background: #222;
    overflow: hidden;
    z-index: 1;
}
.layer
{
    position: absolute;
    top: 0;
    left: -50%;
    width: 100%;
    height: 100vh;
    box-shadow: 10px 0 10px rgba(0,0,0,0.25);
    z-index: 2;
}
.layer.layer1
{
    background: #000;
    transform: skewX(-45deg) translateX(0);
    z-index: 4;
}
.layer.layer2
{
    background: #FE7B22;
    transform: skewX(-45deg) translateX(-100px);
    z-index: 6;
}
.layer.layer3
{
    background: #000;
    transform: skewX(-45deg) translateX(-200px);
    z-index: 8;
}
.layer.layer4
{
    background: #222;
    transform: skewX(-45deg) translateX(-300px);
    z-index: 10;
}
.layer.layer5
{
    background: #000;
    transform: skewX(45deg) translateX(0);
    z-index: 5;
}
.layer.layer6
{
    background: #FE7B22;
    transform: skewX(45deg) translateX(-100px);
    z-index: 7;
}
.layer.layer7
{
    background: #000;
    transform: skewX(45deg) translateX(-200px);
    z-index: 9;
}
.layer.layer8
{
    background: #222;
    transform: skewX(45deg) translateX(-300px);
    z-index: 11;
}
.layer.layer9
{
    background: transparent;
    transform: skewX(-45deg) translateX(-300px);
    z-index: 13;
}
.rubber-band
{
    display: flex;
    align-items: center;
    justify-content:center;
    font-size: 3em;
    color: blue;
    font-weight: 600;
    z-index: 50;
}
.rubber-band2
{
    display: flex;
    align-items: center;
    justify-content:center;
    color: blue;
    font-weight: 600;
    z-index: 15;
}

.rubber-letter
{
    transition: 0.2s ease-in-out color;
    z-index: 20;
}
.rubber-letter:hover
{
    display: inline-block;
    cursor: pointer;
    animation: rubberLater 1s ease-in-out forwards;
    color: beige;
    z-index: 25;
}
@keyframes rubberLater 
{
    0%{
        transform: scale3d(1,1,1);
    }
    30%{
        transform: scale3d(1.25,0.75,1);
    }
    40%{
        transform: scale3d(0.75,1.25,1);
    }
    50%{
        transform: scale3d(1.15,0.85,1);
    }
    65%{
        transform: scale3d(0.95,1.05,1);
    }
    75%{
        transform: scale3d(1.05,0.95,1);
    }
    100%{
        transform: scale3d(1,1,1);
    }
}
.espace
{
    padding: 0 10px;
}
.navigation
{
    position: fixed;
    inset: 20px 0 20px 20px;
    width: 75px;
    background: transparent;
    transition: 0.5s;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 20;
}
.navigation.open
{
    width: 250px;
}
.navigation .menuT
{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 60px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding: 0 23px;
}
.navigation .menuT::before
{
    content: '';
    position: absolute;
    width: 30px;
    height: 2px;
    background: #FE7B22;
    transform: translateY(-8px);
    transition: 0.5s;
}

.navigation .menuT::after
{
    content: '';
    position: absolute;
    width: 30px;
    height: 2px;
    background: #FE7B22;
    transform: translateY(8px);
    transition: 0.5s;
    box-shadow: 0 -8px 0 #FE7B22;
}

.navigation.open .menuT::before
{
    transform: translateY(0px) rotate(45deg);
}

.navigation.open .menuT::after
{
    transform: translateY(0px) rotate(-45deg);
    box-shadow: 0 0 0 #222;
}
.navigation ul
{
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

.navigation ul li
{
    list-style: none;
    position: relative;
    width: 100%;
    height: 60px;
    padding: 0 10px;
    transition: 0.5s;
}

.navigation ul li.active
{
    transform: translateX(30px);
}

.navigation.open ul li.active
{
    transform: translateX(10px);
}

.navigation ul li a
{
    position: relative;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    text-align: center;
    text-decoration: none;
}
.navigation ul li a .icon
{
    position: relative;
    display: block;
    min-width: 55px;
    height: 55px;
    line-height: 55px;
    transition: 0.5s;
    border-radius: 50%;
    font-size: 1.5em;
    color: #fff;
}
.navigation ul li.active a .icon
{
    color: #000;
    background: var(--clr);
}
.navigation ul li a .icon::before
{
    content: '';
    position: absolute;
    top: 5px;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--clr);
    border-radius: 50%;
    opacity: 0;
    transition: 0.5s;
}
.navigation ul li.active a .icon::before
{
    opacity:0.25;
}
.navigation ul li a .text
{
    position: relative;
    padding: 0 15px;
    height: 60px;
    display: flex;
    align-items: center;
    color: #fff;
    opacity: 0;
    visibility: hidden;
    transition: 0.5s;
}
.navigation.open ul li a .text
{
    opacity: 1;
    visibility: visible;
}
.navigation ul li.active a .text
{
    color: var(--clr);
}