@import url('https://fonts.googleapis.com/css2?family=Rubik:wght@400;500&display=swap');

:root{
    --Soft-Blue: hsl(231, 69%, 60%);
    --Soft-Red: hsl(0, 94%, 66%);
    --Grayish-Blue: hsl(229, 8%, 60%);
    --Very-Dark-Blue: hsl(229, 31%, 21%);
    --White:hsl(0, 0%, 100%);
}

html{
    font-size: 62.5%;
}

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Rubik', sans-serif;
}

/* ----------HEADER ---------------------- */

header{
    width: 100%;
    padding: 2rem 1.5rem;
    overflow-x: hidden;
    position: relative;
}

nav{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8rem;
}

.nav-links{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100vh;
    background-color: var(--Very-Dark-Blue);
    text-align: center;
    padding-top: 2rem;
    list-style: none;
    z-index: 10;
}

.nav-links-head{
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 2.5rem;
    margin-bottom: 2rem;
}

.menu-logo{
    width: 15rem;
}

.nav-line{
    width: 80%;
    margin: auto;
    height: .1rem;
    background-color: var(--Grayish-Blue);
}

.nav-link{
    margin: 2rem auto;
    padding: .5rem 0;
    width: 80%;
}

.nav-link > a{
    color: var(--White);
    font-size: 1.8rem;
    text-transform: uppercase;
    text-decoration: none;
}

.login-btn{
    border: .2rem solid var(--White);
    padding: 1rem 0;
}

.nav-social-icons{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    list-style: none;
    margin-top: 15rem;
}

.nav-icon > i{
    cursor: pointer;
    color: var(--White);
    font-size: 2.5rem;
}

.logo{
    width: 10rem;
}

.menu, .close{
    width: 2rem;
    cursor: pointer;
}

.header-img-box{
    position: relative;
    margin-bottom: 2rem;
}

.header-img-bg{
    width: 35rem;
    height: 25rem;
    background-color: var(--Soft-Blue);
    transform: translateX(15%);
    border-bottom-left-radius: 10rem;
}

.header-hero{
    position: absolute;
    top: -5rem;
    width: 40rem;
    max-width: 100%;
    height: 30rem;
}

.header-txt-box{
    margin-top: 5rem;
    text-align: center;
}

.header-txt-title{
    font-size: 3rem;
    line-height: 4rem;
    color: var(--Very-Dark-Blue);
    margin-bottom: 2rem;
    font-weight: 500;
}

.header-txt-para,
.main-para,
.features-txt-para{
    font-size: 1.8rem;
    margin-bottom: 2rem;
    line-height: 2.8rem;
    color: var(--Grayish-Blue);
}

.header-txt-btns{
    margin:2rem 0 3rem;
}

.btn{
    border: none;
    outline: none;
    padding: 1.5rem 1.5rem;
    font-size: 1.8rem;
    border-radius: .5rem;
    box-shadow: 0 1px 10px -1px var(--Grayish-Blue);
    cursor: pointer;
}

.chrome{
    background-color: var(--Soft-Blue);
    color:var(--White);
    margin-right: .25rem;
    border: .2rem solid var(--Soft-Blue);
    transition: all .2s ease-in-out;
}

.firefox{
    color: var(--Very-Dark-Blue);
    margin-left: .25rem;
    border: .2rem solid var(--Grayish-Blue);
    transition: all .2s ease-in-out
}

/* --------- MAIN --------- */

main{
    padding: 3rem 0 0;
    text-align: center;
}

.main-title,
.features-txt-title{
    font-size: 2.7rem;
    color: var(--Very-Dark-Blue);
    margin-bottom: 2rem;
    font-weight: 500;
    padding: 0 1.5rem;
}

.main-para{
    padding: 0 1.5rem;
}

.features-box{
    padding: 0 1.5rem;
    margin: 2rem 0 4rem;
}

.line{
    width: 85%;
    height: .1rem;
    margin: auto;
    background-color: var(--Grayish-Blue);
}

.features-btn{
    display: block;
    background-color: transparent;
    font-size: 1.8rem;
    border: none;
    outline: none;
    color: var(--Grayish-Blue);
    padding: 1.25rem 0;
    margin: 0 auto;
    font-weight: 500;
    cursor: pointer;
    transition: color .2s ease-in-out;
}

.features-btn:hover{
    color: var(--Soft-Red);
}

.simple-bookmark{
    border-bottom: .4rem solid var(--Soft-Red);
    color: var(--Very-Dark-Blue);
}

.features-slide-wrapper{
    width: 90%;
    min-height: 60rem;
    padding: 0 1.5rem;
    position: relative;
}

.features-slide{
    position: absolute;
    width: 100%;
    height: 100%;
}

.features-img-box{
    margin: 6rem 0 3rem ;
    position: relative;
}

.features-img-bg{
    width: 32rem;
    max-width: 95%;
    height: 30rem;
    background-color: var(--Soft-Blue);
    transform: translateX(-1.5rem);
    border-bottom-right-radius: 10rem;
}

.features-img{
    width: 40rem;
    max-width: 100%;
    height: 30rem;
    position: absolute;
    top: -5rem;
    left: 0;
}

.desktop-more-info{
    display: none;
}

.extensions-wrapper{
    padding: 0 1.5rem;
}

.extension-card{
    box-shadow: 1px 1px 15px var(--Grayish-Blue);
    margin: 3rem 0;
    padding: 3rem 0;
    border-radius: .5rem;
}

.browser-img{
    width: 10rem;
    margin: 2rem 0;
}

.browser-title{
    color: var(--Very-Dark-Blue);
    font-size: 2rem;
    font-weight: 500;
    margin: 1rem 0;
}

.browser-version{
    color: var(--Grayish-Blue);
    font-size: 1.8rem;
    margin-bottom: 3rem;
}

.dots{
    width: 100%;
    margin-bottom: 2rem;
}

.extension-btn{
    background-color: var(--Soft-Blue);
    color: var(--White);
    border: .2rem solid var(--Soft-Blue);
    outline: none;
    cursor: pointer;
    padding: 1.5rem 2rem;
    font-size: 1.8rem;
    border-radius: .5rem;
    transition: all .2s ease-in-out;
}

.extension-btn:hover{
    color: var(--Soft-Blue);
    background-color: transparent;
}

.question-container{
    margin: 3rem 0;
    padding: 0 1.5rem;
    list-style: none;
}

.question-card{
    border-bottom: .1rem solid var(--Grayish-Blue);
    cursor: pointer;
    transition: all .2s ease-in-out;
}

.question-card:hover .question{
    color: var(--Soft-Red);
}

.question-box{
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: .5rem 0;
    padding: 1rem 0;
}

.question{
    font-size: 1.8rem;
    color: var(--Very-Dark-Blue);
}

.arrow-down{
    font-size: 2rem;
    color: var(--Soft-Blue);
    cursor: pointer;
}

.answer{
    text-align: left;
    font-size: 1.8rem;
    color: var(--Grayish-Blue);
    line-height: 2.25rem;
    padding: 1rem 0;
}

.question-btn{
    margin: 3rem 0;
    padding: 2rem 2.5rem;
    font-size: 1.8rem;
    color: var(--White);
    background-color: var(--Soft-Blue);
    border: none;
    outline: none;
    cursor: pointer;
    border-radius: .5rem;
}

.contact-wrapper{
    background-color: var(--Soft-Blue);
    padding: 5rem 1.5rem;
}

.contact-para{
    font-size: 1.8rem;
    color: var(--White);
    text-transform: uppercase;
    margin: 2rem 0;
}

.contact-title{
    font-size: 2.5rem;
    color: var(--White);
    font-weight: 500;
    line-height: 3.5rem;
    margin-bottom: 2rem;
}

.email-card{
    position: relative;
    text-align: left;
    background-color: var(--Soft-Blue);
    width: 90%;
    border-radius: .5rem;
    padding-bottom: .5rem;
    margin: 1rem auto;
}

.email{
    display: block;
    width: 100%;
    margin: 1rem auto .25rem;
    border: 1px solid var(--White);
    outline: none;
    border-radius: .5rem;
    padding: 1.5rem .5rem;
    font-size: 1.8rem;
}

.contact-btn{
    display: block;
    width: 90%;
    margin: 1rem auto;
    border: .2rem solid var(--Soft-Red);
    outline: none;
    border-radius: .5rem;
    padding: 1.5rem .5rem;
    font-size: 1.8rem;
    transition: all .2s ease-in-out;
}

.contact-btn:hover{
    color: var(--Soft-Red);
    background-color: var(--White);
}

.error-img{
    position: absolute;
    left: 95%;
    top: 50%;
    transform: translate(-50%, -90%);
    width: 2rem;
}

.error-para{
    color: var(--White);
    font-size: 1.4rem;
    padding-left: .5rem;
}

.contact-btn{
    background-color: var(--Soft-Red);
    color: var(--White);
    cursor: pointer;
}

/* ----FOOTER ------- */
footer{
    background-color: var(--Very-Dark-Blue);
    padding: 2rem 1.5rem ;
    text-align: center;
}

.footer-logo{
    width: 15rem;
    margin: 1rem 0 2rem;
}

.footer-links{
    list-style: none;
}

.footer-link{
    margin: 1rem 0;
    transition: all .2s ease-in-out;
}

.footer-link > a{
    color: var(--White);
    font-size: 1.8rem;
    text-decoration: none;
}

.footer-link:hover > a{
    color: var(--Soft-Red);
}

.social-icons{
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    margin: 2rem 0;
    list-style: none;
    transition: all .2s ease-in-out;
}

.social-icon i{
    font-size: 2.5rem;
    color: var(--White);
}

.social-icon:hover i{
    color: var(--Soft-Red);
}

.attribution{
    font-size: 1.8rem;
    line-height: 2.25rem;
    color: var(--Grayish-Blue);
}

.attribution > a{
    color: var(--White);
    text-decoration: none;
    transition: all .2s ease-in-out;
}

.attribution > a:hover{
    color: var(--Soft-Red);
}

.none-nav{
    display: none;
}

/* ---------MEDIA QUERY ---------- */

@media screen and (min-width:768px) {
    header{
        padding: 2rem 3rem;
    }

    nav{
        margin-bottom: 12rem;
    }

    .logo{
        width: 15rem;
    }

    .nav-links{
        position: relative;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        height: auto;
        padding-top: 0;
        background-color: transparent;

    }
    
    .nav-link{
        margin: 0;
        padding: .5rem 0;
        width: auto;
    }

    .nav-link > a{
        color: var(--Very-Dark-Blue);
        transition: color .2s ease-in-out;
    }

    .nav-link:hover > a{
        color: var(--Soft-Red);
    }

    .login-btn{
        border-color:var(--Soft-Red);
        padding: 1rem 2rem;
        background-color: var(--Soft-Red);
        border-radius: .5rem;
        cursor: pointer;
        transition: all .2s ease-in-out;
    }

    .login-btn > a{
        color: var(--White);
    }

    .login-btn:hover{
        background-color: var(--White);
    }

    .menu,
    .nav-line,
    .close,
    .nav-links-head,
    .menu-logo,
    .nav-social-icons,
    .nav-icon{
        display: none;
    }

    .header-img-bg{
        width: 45rem;
        height: 35rem;
        background-color: var(--Soft-Blue);
        transform: translateX(80%);
        border-bottom-left-radius: 10rem;
    }
    
    .header-hero{
        position: absolute;
        top: -5rem;
        left: 20%;
        width: 60rem;
        max-width: 100%;
        height: 40rem;
    }

    .chrome:hover{
        border-color: var(--Soft-Blue);
        color: var(--Soft-Blue);
        background-color: transparent;
        box-shadow: none;
    }

    .firefox:hover{
        color: var(--Very-Dark-Blue);
        border-color: var(--Very-Dark-Blue);
        background-color: transparent;
        box-shadow: none;
    }

    .main-title,
    .features-txt-title{
    font-size: 3rem;
    }

    .main-para{
        padding: 0 3rem;
    }

    .features-box{
    padding: 0 3rem;
    }

    .features-slide-wrapper{
        padding: 0 3rem;
    }

    .features-img-bg{
        width: 40rem;
        height: 35rem;
        transform: translateX(-3rem);
    }

    .features-img{
        width: 50rem;
        max-width: 100%;
        height: 35rem;
    }

    .extensions-wrapper{
        padding: 0 3rem;
    }

    .extension-card{
        max-width: 45rem;
        margin: 3rem auto;
    }

    .question-container{
        padding: 0 3rem;
    }

    .contact-wrapper{
        padding: 5rem 3rem;
    }

}

@media screen and (min-width:920px) {

    /* ---------HEADER ----------- */
    
    .header-container{
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
        place-items: center;
        grid-auto-flow: dense;
    }

    .header-img-box{
        grid-column: 2;
    }

    .header-txt-box{
        grid-column: 1;
        text-align: left;
    }

    .header-txt-title{
        font-size: 3.7rem;
    }

    .chrome{
        margin-right: 1rem;
    }

    .firefox{
        margin-left: 1rem;
    }

    .header-img-bg{
        width: 45rem;
        height: 30rem;
        background-color: var(--Soft-Blue);
        transform: translateX(45%);
        border-bottom-left-radius: 10rem;
    }
    
    .header-hero{
        position: absolute;
        top: -5rem;
        left: 20%;
        width: 40rem;
        max-width: 100%;
        height: 35rem;
    }

    .main-para{
        width: 60%;
        margin:.5rem auto 3rem;
    }

    .features-box{
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
        border-bottom: .1rem solid var(--Grayish-Blue);
    }

    .features-img-bg{
        width: 55rem;
        transform: translateX(-6rem);
    }

    .mobile-only{
        display: none;
    }

    .features-slide{
        display: grid;
        grid-template-columns: repeat(2, 1fr) ;
        place-items: center;
        text-align: left;
        gap: 3rem;
    }

    .desktop-more-info{
        display: block;
        background-color: var(--Soft-Blue);
        color: var(--White);
        font-size: 1.8rem;
        padding: 1.5rem 2rem;
        border: none;
        outline: none;
        border-radius: .5rem;
    }

    .extensions-wrapper{
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }

    .extension-card:first-child{
        height: fit-content;
    }

    .extension-card:nth-child(2){
        margin-top: 9rem;
        height: fit-content;
    }

    .extension-card:last-child{
        margin-top: 14rem;
    }

    .question-container{
        width: 80%;
        margin: auto;
    }

    .question-line{
        height: .1rem;
        width: 100%;
        background-color: var(--Grayish-Blue);
    }

    .contact-title{
        font-size: 3.7rem;
        line-height: 4.7rem;
        width: 50%;
        margin:.5rem auto 3rem;
    }

    .contact-box{
        display: grid;
        grid-template-columns: 80% 20%;
        align-items: flex-start;
    }

    .email{
        margin-top: 0;
    }

    /* --------- FOOTER ------ */

    .footer-nav{
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        align-items: flex-start;
        gap: 2rem;
        margin: 3rem 0;
    }

    .footer-links{
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 2.5rem;
    }

    .social-icons{
        margin: 1rem 0 2rem;
    }
}

.none{
    display: none;
}