/*кнопка обратной связи*/

.email-bt {
        background:#38a3fd;
        border:2px solid #38a3fd;
        border-radius:50%;
        box-shadow:0 8px 10px rgba(249,92,24,0.3);
        cursor:pointer;
        height:100px;
        text-align:center;
        width:100px;
        position: absolute;
        right: 1vw;
        top: 0vw;
        z-index:999;
        transition:.3s;
        -webkit-animation:email-an linear 1s infinite;
        animation:email-an linear 1s infinite;
}

.email-bt .text-call{
        height:100px;
        width:100px;        
        border-radius:50%;
        position:relative;
        overflow:hidden;
}

.email-bt .text-call span {
    text-align: center;
    color:#38a3fd;
    opacity: 0;
    font-size: 0;
        position:absolute;
        right: 15px;
        top: 27px;
    line-height: 14px;
        font-weight: 600;
    text-transform: uppercase;
    transition: opacity .3s linear;
    font-family: 'montserrat', Arial, Helvetica, sans-serif;
}

.email-bt .text-call:hover span {
    opacity: 1;
        font-size: 11px;
}
.email-bt:hover i {
    display:none;
}

.email-bt:hover {
        z-index:1;
        background:#e9eef1;
        transition:.3s;
}
.email-bt:hover i {
        color:#38a3fd;
        font-size:40px;
        transition:.3s;
}
.email-bt i {
        color:#e9eef1;
        margin-top: 15px;
        font-size:64px;
        transition:.3s;
        line-height: 66px;
}

.email-bt i  {
        -webkit-animation: opsimple 3s infinite;
        animation: opsimple 3s infinite;
}

@-webkit-keyframes email-an {
         0% {
        box-shadow:0 8px 10px rgba(56,163,253,0.3),0 0 0 0 rgba(56,163,253,0.2),0 0 0 0 rgba(56,163,253,0.2)
}
40% {
        box-shadow:0 8px 10px rgba(56,163,253,0.3),0 0 0 15px rgba(56,163,253,0.2),0 0 0 0 rgba(56,163,253,0.2)
}
80% {
        box-shadow:0 8px 10px rgba(56,163,253,0.3),0 0 0 30px rgba(56,163,253,0),0 0 0 26.7px rgba(56,163,253,0.067)
}
100% {
        box-shadow:0 8px 10px rgba(56,163,253,0.3),0 0 0 30px rgba(56,163,253,0),0 0 0 40px rgba(56,163,253,0.0)
}
}@keyframes email-an {
       0% {
        box-shadow:0 8px 10px rgba(56,163,253,0.3),0 0 0 0 rgba(56,163,253,0.2),0 0 0 0 rgba(56,163,253,0.2)
}
40% {
        box-shadow:0 8px 10px rgba(56,163,253,0.3),0 0 0 15px rgba(56,163,253,0.2),0 0 0 0 rgba(56,163,253,0.2)
}
80% {
        box-shadow:0 8px 10px rgba(56,163,253,0.3),0 0 0 30px rgba(56,163,253,0),0 0 0 26.7px rgba(56,163,253,0.067)
}
100% {
        box-shadow:0 8px 10px rgba(56,163,253,0.3),0 0 0 30px rgba(56,163,253,0),0 0 0 40px rgba(56,163,253,0.0)
}
}

@keyframes opsimple {
0% {
    opacity: 0;
}
40% {
    opacity: 1;
}

80% {
    opacity: 1;
}
100% {
    opacity: 0;
}
}

@-webkit-keyframes opsimple {
0% {
    opacity: 0;
}
40% {
    opacity: 1;
}
80% {
    opacity: 1;
}
100% {
    opacity: 0;
}
}
/* конец кнопки звязи */