*{
    margin: 0;
    padding: 0;
}

.header{
    min-height: 100vh;
    width: 100%;
    background-image: linear-gradient(rgba(4,9,30,0.7),rgba(4,9,30,0.7)),url(images/banner.png);
    background-position: center;
    background-size: cover;
    position: relative;
}

nav{
    display:flex;
    padding: 2% 6%;
    justify-content: space-between;
    align-items: centre;
}

nav img{
    width: 150 px;
}
.nav-links{
    flex:1;
    text-align:right ;
}
.nav-links ul li{
    list-style: none;
    display:inline-block ;
    padding: 8px 12px;
    position: relative ;
}
.nav-links ul li a{
    color: white;
    text-decoration: none;
    font-size: 13px;
}
.nav-links ul li::after{
    content:'';
    width: 0%;
    height: 2px;
    background: #f44336;
    display: block;
    margin: auto;
    transition: 0.5s;
}
.nav-links ul li:hover::after{
    width: 100%;

}
.text-box{
    width: 90%;
    color: #fff ;
    position : absolute;
    top: 50%;
    left:50% ;
    transform: translate(-50%,-50%);
    text-align: center;
}
.text-box h1{
    font-size: 62px;
}
.text-box p{
    margin: 10px 0 40px;
    font-size: 14px;
}
.hero-btn{
    display: inline-block;
    text-decoration: none;
    color: #fff;
    border: 1px solid white;
    padding: 12px 34px;
    font-size: 13px;
    background: transparent;
    position:relative ;

}

.hero-btn:hover{
border: 1px solid #f44336 ;
background: #f44336;
transition: 1s;
}
nav.fa{
    display:none;

}
@media(max-width : 700px){
    .text-box h1{
        font-size: 20px;
    }
    .nav-links ul li{
        display: block;
    }

    .nav-links{
        position: absolute;
        background:  #f44336;
        height: 100vh;
        width: 200px;
        top: 0;
        right: -200px;
        text-align: left;
        z-index: 2;
        transition: 1s;
        
    }
    nav .fa{
        display:block;
        color: #fff;
        margin: 10px;
        font-size: 22px;
        cursor: pointer;
    }
    .nav-links ul{
        padding: 30px;
    }
}