*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

:root{
    --dark-color: #19283f;
    --green-color: #33d1cc;
    --red-color: #ff3150;
    --yellow-color: #ffc501;
    --light-background: #eff7fa;
}

body{
    font-family: 'roboto', sans-serif;
}

/*start components */
    .main-button{
        background-color: var(--red-color);
        color: var(--yellow-color);
        font-weight: bold;
        text-transform: capitalize;
    }
    .main-button:hover{
        background-color: var(--yellow-color);
        color: var(--red-color);
    }
/*end components */

/* strat navbar */
    .navbar{
        background-color: var(--dark-color);
        transition: 0.3s;
    }

    .navbar .nav-link{
        color: white;
        padding: 10px;
    }
    .navbar .nav-link:hover,
    .navbar .nav-link:focus,
    .navbar .nav-link.active{
        color: var(--green-color);
    }

    .navbar .navbar-toggler{
        color: white;
        border: solid 1px white;
        transition: 0.2s;
        box-shadow: none;
    }

    .navbar .navbar-toggler[aria-expanded="true"]{
        border-color: var(--green-color);
    }

    .navbar .search {
        border-left: solid var(--green-color) 1px;
    }
    .navbar .search svg{
        color: var(--green-color);
    }

    .hidden{
        transform: translateY(calc(-100% - 5px));
    }
/* end navbar */

/* start landing */
    .landing{
        background-color: var(--dark-color);
        min-height: 100vh;
    }
/* end landing */

/* start services */
    .services h4{
        color: var(--yellow-color);
    }

    .services .icons{
        position: relative;
        height: 200px;
    }
    .services .row svg{
        position: absolute;
        left: 50%;
        transform: translateX(-50%);
        bottom: 0;
    }
    .services .num{
        color: var(--light-background);
        font-size: 12rem;
    }
    .services .icon{
        color: var(--green-color);
        font-size: 4rem;
    }

    .services .row h4{
        line-height: 2;
        font-weight: 500;
    }
    .services .row p{
        line-height: 2;
        font-weight: 500;
    }
/* end services */

/* start portfolio */
    .portfolio{
        background-color: var(--light-background);
    }

    .portfolio ul li{
        padding: 0.5rem 1rem;
        text-transform: capitalize;
        font-weight: 500;
        cursor: pointer;
        transition: 0.2s;
    }

    .portfolio ul li:hover:not(.active){
        color: var(--red-color);
    }

    .portfolio li.active{
        background-color: var(--red-color);
        color: var(--yellow-color);
        font-weight: bold;
    }

    .portfolio img{
        max-width: 100%;
    }

    .portfolio .row .box{
        position: relative;
        padding: 5px;
        background-color: white;
        border-radius: 5px;
        overflow: hidden;
        margin-bottom: 1.5rem;
    }


    .portfolio .row .box::after{
        content: attr(data-work);
        height: calc(100% - 10px);
        width: calc(100% - 10px);
        position: absolute;
        background-color: #33d1cc8b;
        top: 5px;
        right: 5px;
        display: flex;
        justify-content: center;
        align-items: center;
        color: white;
        font-size: 2rem;
        letter-spacing: -1px;
        font-weight: bold;
        transform: translateX(calc(-100% - 5px));
        transition: 0.2s;
    }
    .portfolio .row .box:hover::after{
        transform: translateX(0);
    }
/* end portfolio */

/* start about */
    .about .row p{
        margin: 1rem 0;
    }

    .about .row button{
        text-transform: uppercase;
    }
/* end about */

/* start team */
    .team{
        background-color: var(--light-background);
    }

    .team h1{
        color: var(--yellow-color);
    }

    .team .card{
        transition: 0.2s;
    }
    .team .card:hover{
        transform: translateY(-20px);
    }
    
    .team .card h5{
        color: white;
        background-color: var(--green-color);
        font-weight: bold;
    }
/* end team */

/* start techs */
    /* no CSS needed */
/* end techs */

/* start start */
    .start{
        background-color: var(--dark-color);
    }
/* end start */

/* start read */
    @media (min-width:576px){
        .read .card{
            transition: 0.2s;
        }
        .read .card:hover{
            transform: scale(1.1);
            z-index: 2;
        }
    }
/* end read */

/* start subscribe */
    .subscribe{
        background-color: var(--yellow-color);
    }
    .subscribe input[type='email']{
        border: none;
        border-bottom: solid white 1px;
        box-shadow: none;
        color: white;
    }
    .subscribe button{
        transition: 0.2s;
    }
    .subscribe button:hover{
        color: var(--yellow-color);
    }
/* end subscribe */

/* start footer */
    .footer{
        background-color: var(--dark-color);
        color: rgba(255, 255, 255, 0.5);
    }
    .footer h5{
        color: white;
    }
    .footer span{
        font-weight: bold;
    }
    .footer .green-color{
        color: var(--green-color);
    }
    .footer .yellow-color{
        color: var(--yellow-color);
    }

    .footer li{
        padding: 0.25rem;
    }
    
    .footer svg{
        width: 20px;
        height: 20px;
        color: white ;
    }
    
    .footer svg[class *='facebook']{
        background-color: #1877f2;
    }
    .footer svg[class *='twitter']{
        background-color: #1da1f2;
    }
    .footer svg[class *='linkedin']{
        background-color: #0077b5;
    }
    .footer svg[class *='youtube']{
        background-color: #ff0000;
    }
/* end footer */