*{
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
    text-decoration: none;
    list-style: none;
    box-sizing: border-box;
}

:root{
    --color-primary: #7568c0;
    --color-primary-variant: rgba(102,0,250,0.2);
    --color-white: #fff;
    --color-light: #f5f5f5;
    --color-black:#0f0f1b;
    --color-dark: #4b4a53;

    --container-width-lg:82%;
    --container-width-md:90%;
    --container-width-sm:92%;
}

html{
    scroll-behavior: smooth;
}

body{
    font-family:'Poppins', sans-serif;
    font-weight: 300;
    color: var(--color-dark);
    line-height: 1.7;
}

h1,h2,h3,h4,h5{
    color: var(--color-black);
}

h1{
    font-size: 4.4rem;
    line-height: 1.1ch;
}
h2{
    font-size: 2rem;
}
h3{
    font-size: 1.6rem;
}
h4{
    font-size: 1.4rem;
}
h5{
    font-size: 1rem;
}
.lead{
    width: 63%;
    line-height: 1.5;
    margin: 0 auto 3rem;
    text-align: center;
}
img{
    width: 100%;
    object-fit: cover;
}
.container{
    width: var(--container-width-lg);
    max-width: 1800px;
    margin: 0 auto;
}
section{
    padding: 6rem 0;
    margin: 5rem 0;
}
.btn{
    background: var(--color-black);
    color: var(--color-white);
    display: inline-block;
    width: fit-content;
    padding: 0.8rem 1.6rem;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 400ms ease;
}

.btn:hover{
    background: var(--color-light);
    color: var(--color-black);
}
.btn-primary{
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover{
    border-color: var(--color-primary);
    background: var(--color-light);
    color: var(--color-primary);
}
.btn-lg{
    padding: 1.1rem 2rem;
    font-size: 1.2rem;
}

/*-----------Navbar styling------------*/
nav{
    width: 100vw;
    height: 5rem;
    display: grid;
    place-items: center;
    position: fixed;
    z-index: 2;
    /*background: var(--color-white);*/
}
/*changes navbar styles on window scroll using javascript*/
.window-scroll{
    background: var(--color-black);
    box-shadow: 0 1.5rem rgba(148, 145, 151, 0.2);
}
.window-scroll a{
    color: var(--color-white)
}
.window-scroll .nav__logo h3{
    color: var(--color-white);
}
nav a{
    color: var(--color-black);
    font-size: 0.9rem;
    transition: all 400ms ease;
}
nav a:hover{
    color: var(--color-primary);
}
.nav__container{
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav button{
    display: none;
}

.nav__menu{
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 4rem;
}

/* header */
header{
    height: calc(100vh - 5rem);
    position: relative;
    top: 5rem;
    display: grid;
    place-items: center;
    overflow: hidden;
}
.header__container{
    display: grid;
    grid-template-columns: 40% 60%;
    height: 100%;
}
.header__left{
    display: flex;
    align-items: center;
    height: 100%;
}
.header__left h3{
    color: var(--color-primary);
    margin-bottom: 0.6rem;
}
.header__left p{
    margin: 1.2rem 0 2rem;
}
.header__right{
    position: relative;
    height: 100%;
}
.header__socials{
    position: relative;
    right: 0;
    bottom: 8rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    font-size: 1.2rem;
}
.header__socials a{
    color: var(--color-white);
    transition: all 400ms ease;
}
.header__socials a:hover{
    color: var(--color-black);
}
.header__right-bg{
    width: 70rem;
    height: 70rem;
    border-radius: 50%;
    background: var(--color-primary);
    position: absolute;
    right: -30rem;
    bottom: -30rem;
}
.header__image{
    margin-left: 8rem;
    width: 72%;
    position: relative;
    bottom: -1rem;
    z-index: 1;
}

section#companies{
    position: relative;
    top: 5rem;
    padding: 0;
    background: var(--color-light);
    margin: 0;
}
.companies__container{
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    /* grid-template-columns: repeat(7, 1fr); for seven companies */
    gap: 2rem;
    align-items: center;
}
.companies__container span{
    padding: 2.4rem;
}

/*-------------- SERVICES -------------- */
section#services {
    margin-top: 8rem;
}
.services__container{
    display: grid;
    grid-template-columns: 25% auto;
    gap: 2rem;
}

.services__left{
    background: var(--color-primary);
    padding: 2rem;
    color: var(--color-light);
}
.services__left h1{
    font-size: 7rem;
    font-weight: 600;
    color: var(--color-white);
}
.services__left h4{
    line-height: 1.4;
    font-weight: 600;
    color: var(--color-white);
}
.services__right h2{
    margin-bottom: 2rem;
}
.services__cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.services__card{
    background: var(--color-light);
    padding: 4rem 2rem;
    cursor: default;
    transition: all 400ms ease;
}
.services__card:hover{
    background: var(--color-primary);
    color: var(--color-white);
}
.services__card:hover *{
    color: var(--color-white);
    transition: all 400ms ease;
}
.services__card-icon{
    font-size: 2rem;
}
.services__card h5{
    margin: 1rem 0;
}
.services__card:hover a{
    margin-left: 1rem;
}

/* -------------------------PORTFOLIO---------------- */

#portfolio {
    background: var(--color-light);
}
.portfolio__head{
    display: flex;
    justify-content: space-between;
    gap: 3rem;
}
.portfolio__head h3{
    width: 25%;
}
.portfolio__head-right{
    width: 49%;
}
.portfolio__head-right a {
    margin-top: 1.4rem;
    display: inline-block;
    color: var(--color-primary);
    transition: all 400ms ease;
}
.portfolio__head-right a:hover{
    margin-left: 1rem;
}
.portfolio__projects{
    margin-top: 4rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}
.portfolio__project{
    display: flex;
    flex-direction: column;
    align-items: space-between;
    gap: 1rem;
}
.portfolio__project-image{
    height: 20rem;
    display: block;
    border: 1rem solid var(--color-white);
    overflow: hidden;
    box-shadow: 0 0 1.6rem var(--color-primary-variant);
    transition: all 400ms ease;
}

.portfolio__project-image:hover{
    box-shadow: none;
}
.portfolio__project-image img{
    transform: 0;
    transition: all 20s ease;
}
.portfolio__cta{
    display: flex;
    gap: 1rem;
}
.portfolio__project-image:hover img{
    transform: translateY(calc(-100% + 18rem));
}
/* -------------------------TESTIMONIALS---------------- */
#testimonials h2{
    text-align: center;
}
.testimonials__container{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}
.testimonials{
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
    background: var(--color-light);
    padding: 3rem;
    font-size: 0.88rem;
    border: 1px solid transparent;
    transition: all 400ms ease;
}
.testimonials:hover{
    background: transparent;
    border-color: var(--color-primary-variant);
    color: var(--color-primary);
    box-shadow: 0 3rem 2rem var(--color-primary-variant);
    z-index: 1;
}
.avatar{
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 50%;
    overflow: hidden;
   display: block;
}
.testimonial__client{
    display: flex;
    gap: 1rem;
}
#contact{
    background: var(--color-primary);
    color: var(--color-white);
    margin: 0;
}
.contact__container{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8rem;
    font-size: 0.9rem;
}
.contact__container h2{
    color: var(--color-white);
}
.contact__container p{
    margin: 1rem 0 2rem;
}
.contact__socials{
    display: flex;
    gap: 1rem;
}
.contact__socials a{
    color: var(--color-white);
    font-size: 1.3rem;
    transition: all 400ms ease;
}
.contact__socials a:hover{
    color: var(--color-black);
}
form{
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}
form input, textarea{
    padding: 1rem;
}

footer{
    text-align: center;
    background: var(--color-primary);
    padding: 1.2rem 0;
    color: var(--color-white);
    border-top: 1px solid var(--color-black);
}

/* =============MEDIA QUERIES (TABLETS) =============== */
@media screen and (max-width: 1024px){
   h1{
    font-size: 3.6rem;
   }
   h2{
    font-size: 1.6rem;
   }
   .container{
    width: var(--container-width-md);
   }
   .lead{
    margin-top: 0.6rem;
   }
   /*=======NAVBAR========*/
   nav{
    background: var(--color-black);
   }
   .nav__container{
    position: relative;
    width: 100vw;
   }

   .nav__logo h3{
    color: var(--color-white);
    margin-left: 2rem;
   }
   .nav__menu{
    position: fixed;
    top: 5rem;
    right: 0;
    height: fit-content;
    width: 18rem;
    flex-direction: column;
    gap: 0;
    z-index: 3;
    display: none;
    perspective: 400px;
   }
   .nav__menu li{
    width: 100%;
    height: 5.4rem;
    opacity: 0;
    animation: flipNavItem 200ms ease forwards;
    transform-origin: top;
   }
   .nav__menu li:nth-child(2)
    {
        animation-delay: 100ms;
    }
   .nav__menu li:nth-child(3)
    {
        animation-delay: 200ms;
    }
   .nav__menu li:nth-child(4)
    {
        animation-delay: 300ms;
    }
   .nav__menu li:nth-child(5)
    {
        animation-delay: 400ms;
    }

   @keyframes flipNavItem {
    from {
        transform: rotateX(90deg);
    }
    to {
        transform: rotateX(0deg);
        opacity: 1;
    }
    
   }
   .nav__menu li a {
    background: var(--color-primary);
    box-shadow: -2rem 2rem 2rem rgba(0,0,0,0.2);
    color: var(--color-white);
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
   }

   .nav__menu li a:hover{
    background: var(--color-light);
    color: var(--color-black);
   }
   nav button{
    display: inline-block;
    margin-right: 1.4rem;
    background: transparent;
    color: var(--color-white);
    cursor: pointer;
    font-size: 2.4rem;
   }
   nav button#close-menu-btn{
    display: none;
   }

   /*======HEADER=======*/

   header{
    height: 100%;
    padding: 14rem 0 0;
   }
   .header__container{
    align-items: flex-end;
    height: 100%;
   }
   .header__left{
    margin-bottom: 6rem;
   }
   .header__right{
    align-self: flex-end;
    -ms-hyphenate-limit-zone: 100%;
   }
   .header__right-bg{
    width: 25rem;
    height: 25rem;
    right: 50%;
    bottom: 50%;
    transform: translate(50%, 50%);
   }
   .header__image{
    bottom: -3rem;
    width: 80%;
   }
   .header__socials{
    bottom: 3rem;
   }

   .header__socials a{
    color: var(--color-primary);
   }

   /*-----COMPANIES-------*/
   .companies__container{
    gap: 0;

   }
   .companies__container span{
    padding: 1.5rem;
   }
   /*------SERVICES--------*/
   .services__container{
    grid-template-columns: 1fr;

   }
   .services__left{
    display: none;
   }
   .services__cards{
    gap: 1rem;
   }
   /*------PORTFOLIO--------*/
   .portfolio__head h3{
    width: 40%;
   }
   .portfolio__head-right{
    width: auto;
   }
   /*------TESTIMONIALS--------*/
   .testimonials__container{
    grid-template-columns: 1fr;
    gap: 1rem;
   }

   /*------CONTACT--------*/
   .contact__container{
    gap: 2rem;
   }
   .contact__socials a{
    font-size: 1.7rem;
   }
}

/*---------Media queries for phones----------*/
@media screen and (max-width:600px) {
    .container{
        width: var(--container-width-sm);
    }
    section{
        padding: 4rem 0;
        margin: 4rem 0;
    }
    h1{
        font-size: 2.8rem;
    }
    h2{
        font-size: 1.4rem;
    }
    h3{
        font-size: 1.2rem;
    }

    .btn-lg{
        font-size: 1rem;
    }
    .lead{
        width: var(--container-width-sm);
    }

        /*------NAVBAR--------*/

    nav button{
        margin: 0;
        font-size: 1.9rem;
    }
    .nav__logo h3{
        margin-left: 4px;
    }

        /*------HEADER--------*/
        header{
            height: 100vh;
            padding:0;
        }
        .header__container{
            grid-template-columns: 1fr;
            margin-top: 5rem;
            gap: 0;           
        }
        .header__left{
            text-align: center;
            margin-bottom: 2rem;
        }
        .header__left p{
            margin: 0.5rem 0 1.2rem;
        }
        .header__image{
            position: relative;
            top: -2rem;
        }
        .header__right-bg{
            bottom: 36%;
        }
        .header__socials{
            position: absolute;
            z-index: 1;
            bottom: 11rem;
        }
        .header__socials a{
            color: var(--color-primary);
        }
        /*-------HEADER---------*/
        .companies__container{
            grid-template-columns: repeat(3,1fr);
        }
        .companies__container span{
            height: 5rem;
            display: grid;
            place-items: center;
        }
        /*-------SERVICES----------*/
        .services__cards{
            grid-template-columns: 1fr;
        }
        /*----------PORTFOLIO----------*/
        .portfolio__head{
            flex-direction: column;
            gap: 1fr;
        }
        .portfolio__head, .portfolio__head-right{
            width: var(--container-width-sm)
        }
        .portfolio__projects{
            grid-template-columns: 1fr;
        }
        /*------------TESTIMONIALS------------*/
        .testimonials{
            padding: 1rem;
        }
        /*---------CONTACT---------*/
        .contact__container{
            grid-template-columns: 1fr;
            gap: 2rem;
            text-align: center;
        }
        .contact__socials{
            justify-content: center;

        }
}