.nav-box{
    position: relative;
    width: 100%;
    height: 80px;
    padding: 20px 0;
    background-color: var(--top-bottom-box-color);
    box-shadow: 0 1px 2px -1px var(--box-shadow-color);
}
body.has-wave .nav-box .wave{
    display: unset;
}
body.has-wave .nav-box{
    margin-bottom: 50px;
    box-shadow: none;
}
body.has-wave .nav-box.home .wave{
    display: none;
}
body.has-wave .nav-box.home{
    margin-bottom: 0;
}
.nav-box.home{
    height: 40px;
    padding: 0 0;
    background-color: transparent;
    box-shadow: none;
}
body.no-box .nav-box{
    background-color: transparent;
    box-shadow: none;
}
.top-nav{
    float: left;
    position: relative;
    text-align: center;
    height: 100%;
    width: calc(100% - 300px);
}
.top-nav .link{
    display: inline-block;
    font-family: var(--font);
    font-weight: 400;
    font-size: 14px;
    white-space: nowrap;
    color: var(--font-color);
    background-color: transparent;
    padding: 5px;
    margin: 0 12px;
    border-radius: 20px;
}
.top-nav .link:hover{
    margin: 0 5px;
    padding: 12px;
    background-color: var(--lighter-color);
    box-shadow: 0 2px 4px -1px var(--box-shadow-color);
}
.sign-button{
    float: left;
    display: inline-block;
    width: 100px;
    height: 40px;
    border-radius: 20px;
    line-height: 40px;
    font-family: var(--font);
    font-weight: 400;
    font-size: 13px;
    text-align: center;
    color: var(--opposite-font-color);
    background-image: var(--gradient);
    background-size: 200% 200%;
    background-position: 50% 100%;
    box-shadow: 0 2px 4px -2px var(--box-shadow-color);
}
.sign-button:hover{
    box-shadow: 0 4px 6px var(--box-shadow-color);
    background-position: 135% 100%;
}
.top-nav .search-bar{
    position: absolute;
    display: inline-block;
    right: calc(50% - 267px);
    width: 0;
    height: 40px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 2px 4px -2px var(--box-shadow-color);
    transition: 0.35s;
}
.top-nav .search-bar:hover{
    box-shadow: 0 4px 6px var(--box-shadow-color);
}
.top-nav .search-input{
    height: 100%;
    width: 100%;
    padding-right: 40px;
    padding-left: 20px;
    border-radius: 20px;
    font-family: var(--font);
    font-size: 13px;
    color: var(--font-color);
    background-color: var(--lighter-color);
}
.top-nav .search-input:hover,.top-nav .search-input:focus{
    background-color: var(--light-hover-color);
}
.top-nav .search-button{
    position: absolute;
    top: 0;
    right: 0;
    cursor: pointer;
    height: 40px;
    width: 40px;
    line-height: 40px;
    text-align: center;
    color: var(--font-color);
    font-size: 14px;
}

@media screen and (max-width: 950px) {
    body .top-nav{
        display: none;
    }
    .sign-button{
        float: right;
    }
}