@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,400;0,700;1,400;1,700&display=swap');
* {
    margin: 0%;
    padding: 0%;
}
header {
    background-repeat: no-repeat;
    background-size: 100%;


}
header .top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px;
    background-color: black;
    position: fixed;
    top: 0%;
    left: 0%;
    right: 0%;
    z-index: 2;
    width: 100%;
    padding-right: 5%;
}
.header_left {
    display: flex;
    justify-content: space-between;
}
.logo {
    margin-top: -5px;

}
.header_left_nav {
    display: flex;
    justify-content: space-between;
}
.nav {
    display: flex;

}
.nav a {
    color: #ffffff;
    text-decoration: none;
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    height: 16px; 
    margin: 0px 20px;
}
.little_line {
    background-color: #ffffff;
    height: 14px;
    width: 1px;
    margin-top: 3px;
}
.discus a {
    color: #FFCA00;
    text-decoration: none;
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    margin: 0px 20px;
    display: flex;
    justify-content: center;
}
.header_right {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header_right .mail {
    margin: 0px 100px;
}
.header_right .menu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0px 50px 0px 0px;

}
.header_right a {
    color: #ffffff;
    text-decoration: none;
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
}
.header_right .menu a {
    padding: 0px 30px;
}
.burger-menu {
    align-items: center;
}
.burger-menu div {
    background-color: #ffffff;
    width: 50px;
    height: 1px; 
}
.burger-menu div:last-child {
    margin-top: 10px;
}
@media screen and (max-width: 1300px) {

    .nav {
        margin-left: 20px;
    }
    .mail {
        display: none;
    }
    .menu_ordinary {
        display: none;
    }
    .header_right {
        width: 50px;
        margin-right: 30px;
    }
    .top {
        justify-content: space-around;
        width: auto;
    }
    .burger-menu {
        margin-left: -50%;
    }
}
@media screen and (max-width: 900px) {
    .header_left_nav {
        display: none;
    }
}

.header_background_image {
    background-image: url(../images/background1.png);
    background-color: black;
    background-position-y: 10%;
    background-repeat: no-repeat;
    background-size: 100%;
    display: flex;
    justify-content: space-between;
    flex-direction: column;
    width: 100%;
    height: 100vh;
    padding-bottom: 0%;
}
.header_center {
    display: flex;
    flex-direction: column;

}
.header_center_input {
    margin: auto;
    height: auto;
    width: 50%;
    margin-top: 20vh;

}
.tittle {
    font-family: 'Roboto', sans-serif;
    font-size: 54px;
    font-weight: 700;
    line-height: 75px;
    color: #ffffff;
    height: 150px;
    width: 700px;
    margin-bottom: 80px;
}
.welcome {
    width: auto;
    display: flex;
    position: relative;
    margin-bottom: 20px;
}
.welcome .notches {
    margin-right: 3px;
}
.welcome span {
    font-family: 'Roboto', sans-serif;
    font-size: 16px;
    font-weight: 300;
    color: #ffffff;
}
.header_center_bottom {
    display: flex;
    justify-content: space-between;
}
.header_center_bottom img {
    padding-top: 0px;
}
.button {
    background-color: #FFCA00;
    width: 240px;
    height: 68px;
    text-decoration: none;
    text-align: center; 
    align-items: center;
    justify-content: space-around;
    display: flex;
    position: relative;
    overflow: hidden;
}
.button .text {
    color: #202020;
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    font-weight: 500;
}
.button .after {
    background-color: #202020;
    height: 10px;
    width: 10px;
    border-radius: 50%;
    overflow: hidden;
}
.button .after span {
    display: none;
}

.button:hover .after {
    transform: scale(60);
    transition: .4s;
    position: relative;
    }
    .button:hover .text {
    color: #FFCA00;
    font-family: 'Roboto', sans-serif;
    font-size: 14px;
    font-weight: 500;
    height: 20px;
    transition: .5s;
    z-index: 5;
    }
.header_bottom {
    display: flex;
    justify-content: space-between;
    margin-top: 10%;
    position: relative;
    margin-bottom: 3%;
    padding: 0% 2%;
}
.header_bottom_left {
    display: flex;
    flex-direction: column;
    text-decoration: none; 
}
.header_bottom_left .scroll {
    font-family: 'Roboto', sans-serif;
    font-weight: 400;
    font-style: normal;
    font-size: 14px;
    line-height: 20px;
    color: #7E7E7E;
    transform: rotate(-90deg);
    margin-bottom: 40px;  
}
.header_bottom_left img {
    margin-bottom: 40px;
}
.header_bottom_right {
    position: absolute;
    right: 0;
    top: 0;
    display: flex;
    align-items: center;
}
.header_bottom_right .small_circle {
    background-color: #FFCA00;
    border-color: #251f04;
    border-style: solid;
    border-width: 10px;
    width: 76px;
    height: 76px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0px 20px;
}
.header_bottom_right .small_circle:hover img{
    animation-name: chatmove;
    animation-duration: .3s;
    animation-iteration-count: 3;
}
@media screen and (max-width: 1125px) {
    .header_background_image {
        height: 100vh;
    }
    .tittle {
        line-height: 70px;
        width: auto;
        font-size: 40px;
        margin: auto;
    }
    .welcome span {
        font-size: 14px;
    }
}
@media screen and (max-width: 900px)  {
    .header_background_image {
        height: 100vh;
    }
    .header_center {
        margin: 0px 30px 80px 30px;
        padding-top: 0%;
    }
    .tittle {
        width: 500px;
        height: 140px;
        display: flex;
        flex-wrap: wrap;
        margin-bottom: 0%;
    }
}
@media screen and (max-width: 800px) {
    .welcome {
        height: 20px;
    }
    .tittle {
        font-size: 25px;
        width: auto;
        line-height: 50px;
    }

    .header_center_bottom img {
            display: none;
    }
    .button .text:after {
        left: 100px;
        top: 4px;
    }
    .button {
        height: 40px;
        width: 150px;
        padding: 0%;
        margin-bottom: 10px;
    }


    .button .text {
        font-size: 10px;
        left: 7px;
    }
} 
@media screen and (max-width: 550px) {
    .header_background_image {
        background-position-y: 20%;
    }
    .header_center .tittle {
        margin-bottom: 40%;
    }
    .tittle {
        font-size: 20px;
        line-height: 25px;
        height: 50px;
        padding: 0;
        width: auto;
    }
    .welcome {
        margin-bottom: 0px;
    }
    .welcome span {
        font-size: 8px;
    }
    .welcome img {
        width: 10px;
        height: 10px;
        padding-bottom: 20px;
    }
     .button .after {
        width: 7px;
        height: 7px;
    }
}
@media screen and (max-width: 350px) {
    .tittle {
        font-size: 15px;
    }
}
@keyframes chatmove {
    0% {margin-bottom: 0%;}
  25% {
    margin-bottom: 25%;
  }
  50% {
    margin-bottom: 0%;

  }
  75% {
    margin-bottom: -25%;

  }
  100% {
    margin-bottom: 0%;
  }
}