.banner{
    position: relative;
    min-height: 100vh;
    background: url("../../images/background.png");
    background-size: cover;
    background-position:right;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.banner h2{
    font-size-adjust: 3em;
    color: #fff;
    font-weight: 500;
    line-height: 1.5em;
}

.banner h2 span {
    font-size: 1.5em;
    font-weight: 700;
}
.banner h3{
    font-size-adjust: 1.5em;
    color: #fff;
    font-weight: 500;
}
.banner .btn{
    position: relative;
    display: inline-block;
    color: #fff;
    margin-top:20px;
    padding: 10px 30px;
    font-size: 18px;
    background-color: black;
    text-transform: uppercase;
    text-decoration: none;
}
.btn:hover{
    transition: 0.5s linear ;
    background: none;
    border: 1px solid white;
}
header{
    height: 80px;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 40px 100px ;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition:0.5s;
}
header.sticky{
    background: #fff;
    padding: 20px 100px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

header .logo{
    color: white;
    font-size: 28px;
    text-transform: uppercase;
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 2px;
    animation: animatia 1s infinite alternate;
}





header ul{
    position: relative;
    display: flex;
}
header ul li {
    position: relative;
    list-style: none;
}


header.sticky ul li a{
    color: black;
}
.logo.sticky{
    color: black;
}

header ul li a {
    position: relative;
    display: inline-block;
    margin: 0 25px;
    color: rgb(255, 255, 255);
    text-decoration: none;
}