*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif;
}
.bg{
    width: 100%;
    height: 100vh; 
    background-image:linear-gradient(rgba(0,0,0,0.75), rgba(0,0,0,0.75)), url('img.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    color: #fff;
}
.navbar{
    width: 85%;
    height: 10vh;
    display: flex;
    margin: auto;
    padding: 5px 0;
    justify-content: space-between;
    align-items: center;
}
.container{
    display: flex;
    gap: 50px;
}
.item{
    cursor: pointer;
    display: inline-block;
    list-style: none;
    margin: 0 20px;
    position: relative;
}
.item a{
    text-decoration: none;
    color: #fff;
    text-transform: uppercase;
}
.item::after{
    content: '';
    height: 3px;
    width: 0%;
    background: #1ba2cf;
    left: 0;
    bottom: -10px;
    position: absolute;
    transition: 0.5s;
}
.item:hover::after{
    width: 100%;
    transition: 0.5s;
}
.banner{
    width: 100%;
    height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.banner h1{
    font-size: 70px;
}
.banner p{
    width: 550px;
    font-size: 19px;
    font-weight: 100;
    text-align: center;
    line-height: 25px;
}
.btns{
    display: flex;
    gap: 30px;
}
.btn{
    width: 300px;
    height: 45px;
    border-radius: 100px;
    border: 5px solid #1ba2cf;
    filter: grayscale(0%);
    font-size: 20px;
    background: transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    text-align: center;
    color: #fff;
}
span{
    background: #1ba2cf;
    height: 100%;
    width:0px;
    border-radius: 25px;
    position: absolute;
    transition: 2s;
    left: 0;
    bottom: 0;
    z-index: -1;
}
.btn:hover span{
    width: 100%;
    left: 0;
    transition: 1s;
}
.btn:hover{
    border: none;
}