Responsive Website with Smooth Scroll Navigation

style.scss

$dark: #0d1113;
$red: linear-gradient(to right, #7a2629, #440b0c);

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
    scroll-behavior: smooth;
}

header{
    position: fixed;
    width: 100%;
    height: 80px;
    padding: 0 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: $dark;
    z-index: 1000;

    a{
        color: white;
        text-decoration: none;


        &.logo{
            font-weight: bold;
            font-size: 1.4rem;
        }
        
    }

    nav{
        ul{
            display: flex;
            position: relative;
            li{
                list-style: none;
                margin: 0 10px;

                a{
                    position: relative;
                    padding: 5px 10px;
                    display: inline-block;
                    cursor: pointer;
                    transition: .5s;

                    &:hover, &.active{
                        background: $red;
                        border-radius: 5px;
                    }
                }
            }
        }

        #toggle{
            display: none;
        }
        
    }
}

//COVER
#home.cover{
    position: relative;

    h2{
        span{
            display: block;
            text-transform: none;
            font-size: 4.5rem;
            color: #742326;
        }
    }

    img{
        position: relative;
        z-index: 2;
    }

    .shape{
        position: absolute;
        top: 0;
        right: 0;
        background: $dark;
        width: 265px;
        height: 100%;
        z-index: 1;
    }

    .social{
        position: absolute;
        right: 46px;
        ul{
            li{
                list-style: none;

                a{
                    background: none;
                }
            }
        }
    }
}


//SECTIONS
section{
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 100vh;
    padding: 150px 100px 100px;

    img{
        max-width: 340px;
        margin-left: 30px;
    }

    h2{
        font-size: 2.5rem;
        text-transform: uppercase;
        margin-bottom: 30px;
    }
    
    p{
        font-size: 1.2rem;
        margin-bottom: 30px;
    }

    a{
        display: inline-block;
        padding: 8px 10px;
        text-decoration: none;
        font-size: 1.2rem;
        background: $red;
        color: white;
        margin-bottom: 30px;
        border-radius: 5px;
    }

    &:nth-child(even){
        position: relative;
        justify-content: center;
        align-items: center;
        background: $dark;
        color: white;
    }
}



@media (max-width: 992px){
    header{
        nav{
            
            ul{
                position: absolute;
                top: -100%; 
                left: 0;
                width: 100%;
                height: calc(100vh - 80px);
                padding: 50px 100px;
                text-align: center;
                overflow: auto;
                transition: .5s;
                background: black;
                flex-direction: column;
                transform: translateY(-100%);

                li{
                    font-size: 1.8rem;
                    margin: 10px 0;
                }
            }

            #toggle{
                display: block;
                position: relative;
                width: 30px;
                height: 30px;
                cursor: pointer;

                &:before{
                    content: '';
                    position: absolute;
                    top: 4px;
                    width: 100%;
                    height: 2px;
                    background: white;
                    z-index: 1;
                    box-shadow: 0 10px 0 white;
                    transition: .5s;
                }

                //toggle
                &:after{
                    content: '';
                    position: absolute;
                    bottom: 4px;
                    width: 100%;
                    height: 2px;
                    background: white;
                    z-index: 1;
                    transition: .5s;
                }
                
            }
        }

        //header
        &.active{
            nav{
                #toggle:before{
                    top: 14px;
                    transform: rotate(45deg);
                    box-shadow: none;
                }
                #toggle:after{
                    top: 14px;
                    transform: rotate(-45deg);
                    box-shadow: 0 0 0 white;
                }

                ul{
                    transform: translateY(0);
                    top: 80px;
                }
            }
        }
    }

    section{
        padding: 100px 50px 50px;
        flex-direction: column;
        justify-content: center;
        align-items: center;

        img{
            margin: 50px 0 0;
            max-width: 100%;
        }
    }

    #home.cover{
        .shape{
            display: none;
        }
        h2 {
            font-size: 2rem;
            text-transform: uppercase;
            margin-bottom: 30px;
            line-height: 1.3;

            span {
                font-size: 3rem;
            }
        }
    }
}