/* google fonts */

  @import url('https://fonts.googleapis.com/css2?family=Kaushan+Script&family=Red+Hat+Display:ital,wght@0,400;0,900;1,700&display=swap');


:root{
    --header-height: 3.5rem;

    /* color */
    --first-color: rgb(154, 154, 244);
    --first-color-light:rgb(190, 216, 216);
    --first-color-alt: rgb(215, 236, 246);
    --first-color-dark: rgb(9, 58, 82);
    --first-color-gray: rgb(177, 186, 177);
    --title-color: rgb(125, 128, 125);
    --title-color-black: rgb(7, 7, 7);
    --text-color: rgb(135, 151, 135);
    --text-color-light: rgb(164, 180, 164);
    --body-color: rgb(10, 11, 10);

    /* font */
    --body-font: 'Red Hat Display', sans-serif;
    --second-font: 'Kaushan Script', cursive;
    --biggest-font-size:2rem;
    --bigger-font-size:1.5rem;
    --big-font-size:1.25rem;
    --h1-font-size:1.5rem;
    --h2-font-size:1.25rem;
    --h3-font-size:1rem;
    --normal-font-size:.938rem;
    --small-font-size:.813rem;
    --smaller-font-size:.75rem;

   /* font-weight */

   --font-bold:700;
   --font-black:900;

   /* z-index */
    --z-tooltip:10;
    --z-fixed:100;
}
@media screen and (min-width:1024px){
    :root{
        --biggest-font-size:6rem;
        --bigger-font-size:3.5rem;
        --big-font-size:2.75rem;
        --h1-font-size:2.25rem;
        --h2-font-size:1.5rem;
        --h3-font-size:1.25rem;
        --normal-font-size:1rem;
        --small-font-size:.875rem;
        --smaller-font-size:.813rem;
}}

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

html{
    scroll-behavior: smooth;
}
body,
button,
input{
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
}

body{
    background-color: var(--body-color);
    color: var(--text-color);
}

h1,h2,h3{
    color: var(--title-color);
    font-weight: var(--font-bold);

}

ul{
    list-style: none;

}

a{
    text-decoration: none;
}

img{
    max-width: 100%;
    height: auto;
}

.container{
    max-width: 1124px;
    margin-right: 1.5rem;
    margin-left: 1.3rem;
}

.section{
    padding: 4.5rem 0 2rem;
}

.section__data{
    display: flex;
    flex-direction: column;
    row-gap: .75rem;
    text-align: center;
    margin-bottom: 3rem;
}

.section__title,
.section__title-border{
    font-size: var(--big-font-size);
    letter-spacing: 1.5px;
}

.section__subtitle{
    font-size: var(--h2-font-size);
    font-family: var(--second-font);
    font-weight: 400;
    letter-spacing: 1.5px;
    color: var(--first-color);
    transform: rotate(-2deg);
}

.section__titles{
    display: flex;
    column-gap: .75rem;
    justify-content: center;
}
.section__title-border{
    -webkit-text-stroke: 1px var(--text-color);
    color: transparent;
}

.grid{
    display: grid;
    gap: 1.5rem;
}
.main{
    overflow: hidden;
}

.color-green{
    color: var(--first-color);
}
.color-red{
    color: rgb(201, 75, 75);
}

/* navigation */

.header{
    width: 100%;
    background-color: transparent;
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-fixed);
    transition: background .3s;
}

.nav{
    height: var(--header-height) ;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo,
.nav__toggle{
    color: var(--title-color);
    display: flex;
}

.nav__logo{
    align-items: center;
    column-gap: .5rem;
    font-weight: var(--font-bold);
}


.nav__logo img{
    width: 1.25rem;
}

.nav__toggle{
    font-size: 1.25rem;
    cursor:pointer;
}

@media screen and (max-width: 1023px){
    .nav__menu{
        position: fixed;
        background-color: hsla(180, 12%, 8%, .8);
        backdrop-filter: blur(32px);
        -webkit-backdrop-filter: blur(32px);
        top: 0;
        right: -100%;
        width: 80%;
        height: 100%;
        border-left: 2px solid var(--first-color-gray);
        transition: right .3s;
    }
}

.nav__list{
    padding: 5rem 0 0 3rem;
    display: flex;
    flex-direction: column;
    row-gap: 2.5rem;
}

.nav__link{
    color: var(--title-color);
    transition: color .3s;
}

.nav__link:hover{
    color: var(--first-color);
}

.nav__close{
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 1.5rem;
    color: var(--title-color);
    cursor: pointer;
}
.nav .nav__button{
    background-color: var(--title-color);
    border: none;
}

/* show menu */
.show-menu{
    right: 0;
}
.bg-header{
    background-color: var(--body-color);
    box-shadow: 0 4px 8px hsla(180, 12%, 4%, .3);

}
.active-link{
    color: var(--first-color);
}

.home{
    position: relative;
    padding-bottom: 0;

}
.home__container{
    padding-top: 4rem;
    row-gap: 3rem;
}

.home__data{
    text-align: center;
}

.home__subtitle{
    font-size: var(--bigger-font-size);
    -webkit-text-stroke: 1px var(--title-color);
    color: transparent;
}

.home__title{
    font-size: var(--biggest-font-size);
    font-weight: var(--font-black);
    margin: .5rem 0;
}

.home__subtitle,
.home__title{
    letter-spacing: 1.5px;
}

.home__description{
    margin-bottom: 2.5rem;
}

.home__triangle{
    height: 325px;
    position: absolute;
    right: 0;
    bottom: 0;
    clip-path: polygon(100% 0, 0 100%, 100% 100%);
}
.home__triangle-1{
    width: 105px;
    background-color: var(--first-color);
}
.home__triangle-2{
    width: 205px;
    background-color: var(--first-color-alt);
}
.home__triangle-3{
    width: 305px;
    background-color: var(--first-color-dark);
}
.home__img{
    display: block;
    position: relative;
    z-index: 1;
    width: 350px;
    margin: 0 auto;

}

.button{
    display: inline-block;
    background-color: var(--first-color);
    padding: 18px 32px;
    border: 2px solid var(--first-color-light);
    color: var(--title-color-black);
    font-weight: var(--font-bold);
    cursor: pointer;
    border-radius: 2px;
    transition: background .3s;
}

.button:hover{
    background-color: var(--first-color-alt);
}

.button i{
    font-size: 1.25rem;
    transition: transform .3s;
}

.button__flex{
    display: inline-flex;
    align-items: center;
    justify-content: center;
    column-gap: .5rem;
}

.button__flex:hover i{
    transform: translateX(.25rem);
}

.logos__container{
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    justify-items: center;

}
.logos__container img{
    width: 100px;
}


.program__container{
    grid-template-columns: 225px;
    justify-content: center;
    row-gap: 2rem;
}

.program__card{
    display: grid;
    background-color: hsla(180, 12%, 8%, .8);
    padding: 1.5rem 2rem;
    border: 2px solid transparent;
    transition: background .5s, border .4s;
}

.program__img{
    width: 37px;
}

.program__shape{
    width: 50px;
    height: 50px;
    background-color: var(--first-color-gray);
    border-radius: 50%;
    display: grid;
    place-items: center;
    margin-bottom: 1rem;
    transition: background .5s;
}

.program__title{
    font-size: var(--h3-font-size);
    margin-bottom: 1rem;
}

.program__description{
    font-size: var(--small-font-size);
    letter-spacing: .5px;
    line-height: 150%;
}
.program__title,
.program__description{
    transition: color .5s;
}

.program__button{
    justify-self: flex-end;
    margin-top: 1.5rem;
    font-size: 1,25rem;
    opacity: 0;
    color: var(--title-color-black);
    transition: opacity .4s;
}

.program__button i{
    display: block;
    transition: transform .3s;
}

.program__button:hover{
    transform: translateY(.25rem);
}

.program__card:hover{
    background-color: var(--first-color);
    border: 2px solid var(--first-color-light);
    cursor: pointer;
}
.program__card:hover .program__shape{
    background-color: var(--first-color-light);
}

.program__card:hover .program__title,
.program__card:hover .program__description{
    color: var(--title-color-black);
}

.program__card:hover .program__button{
    opacity: 1;
}

.choose{
    padding-bottom: 0;

}
.choose__overflow{
    position: relative;
}

.choose__container{
    row-gap: 3rem;
}

.choose__content .section__data{
    margin-bottom: 2rem;
}

.choose__description{
    text-align: center;
    margin-bottom: 2.5rem;
}

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

.choose__group{
    text-align: center;
}

.choose__number{
    font-size: var(--h1-font-size);
    font-family: var(--second-font);
    font-weight: 400;
    margin-bottom: .25rem;
}
.choose__subtitle{
    font-size: var(--small-font-size);
}
.choose__triangle{
    height: 325px;
    position: absolute;
    left: 0;
    bottom: 0;
    clip-path: polygon(0 0, 0 100%, 100% 100%);
}

.choose__triangle-1{
    width: 305px;
    background-color: var(--first-color);
}

.choose__triangle-2{
    width: 205px;
    background-color: var(--first-color-alt);
}
.choose__triangle-3{
    width: 105px;
    background-color: var(--first-color-dark);
}

.choose__img{
    width: 860px;
    display: block;
    position: relative;
    z-index: 1;
    margin: 0 auto;
}

.pricing__container{
    grid-template-columns: 285px;
    justify-content: center;
    row-gap: 2rem;
}

.pricing__card,
.pricing__shape,
.pricing__list{
    display: grid;
}

.pricing__card{
    row-gap: 2rem;
    background-color: hsla(79, 6%, 64%, .07);
    padding: 2rem 2.5rem;
}

.pricing__img{
    width: 45px;
}

.pricing__shape{
    width: 60px;
    height: 60px;
    background-color: var(--first-color-gray);
    border-radius: 50%;
    place-items: center;
    margin-bottom: 1rem;
}

.pricing__tittle{
    font-size: var(--h3-font-size);
    color: var(--text-color);
    margin-bottom: 1rem;
}

.pricing__number{
    font-size: var(--h1-font-size);
}
.pricing__list{
    row-gap: 1rem;
}

.pricing__item{
    display: flex;
    column-gap: .5rem;
    align-items: center;
    font-size: var(--small-font-size);
}

.pricing__item i{
    font-size: 1.25rem;
    color: var(--first-color);
}

.pricing__item-opacity{
    opacity: .3;
}

.pricing__button{
    background-color: var(--title-color);
}
.pricing__button:hover{
    border-color: var(--title-color);
}

.pricing__card-active{
    background-color: var(--first-color);
    border: 2px solid var(--first-color-light);
}

.pricing__card-active .pricing__shape{
    background-color: var(--first-color-light);

}

.pricing__card-active .pricing__item i{
    color: var(--title-color);
}

.pricing__card-active .pricing__title,
.pricing__card-active .pricing__number,
.pricing__card-active .pricing__item{
    color: var(--title-color-black);
}


.calculate{
    padding-bottom: 0;
}
.calculate__container{
    row-gap: 4rem;
}

.calculate__content .section__titles{
    margin-bottom: 2rem;
    text-align: center;
}

.calculate__description{
    text-align: center;
    margin-bottom: 2.5rem;
}
.calculate__form{
    display: grid;
    row-gap: 1rem;
}

.calculate__box{
    position: relative;
    border: 2px solid var(--first-color-light);
}
.calculate__input{
    width: 100%;
    background: transparent;
    padding: 20px 56px 20px 24px;
    outline: none;
    border: none;
    color: var(--text-color);
}

.calculate__input::-webkit-outer-spin-button,
.calculate__input::-webkit-inner-spin-button{
    -webkit-appearance: none;
    margin: 0;
}

.calculate__input[type=number]{
    -moz-appearance: textfield;
}

.calculate__label{
    position: absolute;
    right: 1.5rem;
    top: 1.25rem;
    color: var(--title-color);
}

.calculate__form .button{
    margin-top: 1.5rem;
}

.calculate__img{
    width: 200px;
    justify-self: center;
}

.calculate__message{
    position: absolute;
    transform: translateY(1rem);
}


.footer__container{
    row-gap: 4rem;
    padding-top: 1rem;
}


.footer__logo,
.footer__description{
    color: var(--title-color);
}

.footer__logo,
.footer__form,
.footer__social{
    display: flex;
}

.footer__logo{
    align-items: center;
    column-gap: .5rem;
    font-weight: var(--font-bold);
    margin-bottom: 1.5rem;

}

.footer__logo img{
    width: 8.5rem;
}
.footer__description{
    margin-bottom: 2rem;
}
.footer__form{
    flex-direction: column;
    gap: 1.25rem;
}

.footer__input{
    padding: 20px 56px 20px 24px;
    border: 2px solid var(--first-color-light);
    background: transparent;
    color: var(--text-color);
    outline: none
}

.footer__content,
.footer__links,
.footer__group{
    display: grid;
}

.footer__content{
    grid-template-columns: repeat(2, max-content);
    gap: 2.5rem 3.5rem;
}

.footer__title{
    font-size: var(--h3-font-size);
    margin-bottom: 1.5rem;
}

.footer__links{
    row-gap: .75rem;
}

.footer__link{
    color: var(--text-color);
    transition: color .3s;
}

.footer__link:hover{
    color: var(--first-color);
}

.footer__group{
    margin-top: 5rem;
    justify-items: center;
    row-gap: 2rem;
}

.footer__social{
    column-gap: 1.25rem;
}

.footer__social-link{
    display: inline-flex;
    padding: .35rem;
    background: var(--first-color);
    font-size: 1.25rem;
    border-radius: 50%;
    color: var(--title-color-black);
    transition: background .4s;
}

.footer__social-link:hover{
    background-color: var(--first-color-dark);
}

.footer__copy{
    font-size: var(--small-font-size);
    color: var(--text-color-light)
}
.footer__message{
    position: absolute;
    transform: translateY(1rem);
}


::-webkit-scrollbar{
    width: .1rem;
    border-radius: .5rem;
    background-color: hsl(79, 4%, 15%);
}

::-webkit-scrollbar-thumb{
    background-color: hsl(79, 4%, 25%);
    border-radius: .5rem;
}

::-webkit-scrollbar-thumb:hover{
    background-color: hsl(77, 56%, 44%);
}

.scrollup{
    position: fixed;
    right: 1rem;
    bottom: -30%;
    background-color: var(--first-color);
    display: inline-block;
    padding: .35rem;
    color: var(--title-color-black);
    font-size: 1.25rem;
    z-index: var(--z-tooltip);
    transition: .3s;
}

.scrollup:hover{
    transform: translateY(-.25rem);
}

.show-scroll{
    bottom: 3rem;
}

/* media queries */

/* for smaller devices */
@media screen and  (max-width:340px){
    .container
    {
        margin-left: 1rem;
        margin-right: 1rem;
    }

    .section__titles{
        flex-direction: column;
        row-gap: .25rem;
    }
    .home__triangle,
    .choose__triangle{
        height: 255px;

    }
    .home__triangle-3,
    .choose__triangle-1{
        width: 260px;
    }
    .choose__img{
        width: 195px;
    }
    .pricing__container{
        grid-template-columns: 250px;
    }
    .pricing__card{
        padding: 1.5rem;
    }
    .footer__form{
      width: 250px;  
    }
    .footer__content{
        grid-template-columns: 1fr;
    }


}
/* for medium devices */


@media screen and (min-width: 768px) {
    .nav__menu{
        width: 50%;
    }
    .home__container,
    .choose__container{
        grid-template-columns: repeat(2, 1fr);
        align-items: center;
    }
    .home__data,
    .choose__content .section__data,
    .choose__description,
    .calculate__content{
        text-align: initial;
    }
    .logos__container{
        grid-template-columns: repeat(4, 1fr);
    }
    .program__container{
        grid-template-columns: repeat(2, 225px);
        gap: 2.5rem;
    }

    .choose__content{
        order: 1;
    }

    .choose__data{
        justify-items: flex-start;
    }
    .choose__content .section__titles,
    .calculate__content .section__titles{
        justify-content: initial;
    }

    .pricing__container{
        grid-template-columns: repeat(2, 285px);
        gap: 2.5rem;
    }

    .calculate__container{
        grid-template-columns: 1fr .8fr;
        align-items: center;
    }

    .calculate__form{
        grid-template-columns: repeat(2, 1fr);
        column-gap: 1.5rem;
    }
    .calculate__form .button{
        grid-column: 1/3;
    }

    .footer__container{
        grid-template-columns: repeat(2, max-content);
        justify-content: space-between;
    }
    .footer__content{
        grid-template-columns: repeat(3, max-content);
        margin-top: 35px;
    }
}


/* for larger devices */
@media screen and (min-width: 1023px) {
    .nav{
        height: calc(var(--header-height) + 2rem);
    }

    .nav__menu{
        width: initial;
    }

    .nav__toggle,
    .nav__close{
        display: none;
    }

    .nav__list{
        flex-direction: row;
        padding: 0;
        align-items: center;
        column-gap: 4rem;
    }
    .section{
        padding: 7rem 0 0;
    }
    .section__subtitle{
        font-size: 2rem;
    }

    .home__container{
        grid-template-columns: repeat(2, max-content);
        align-items: initial;
    }

    .home__title{
        margin: .75rem 0 1.25rem;
    }

    .home__description{
        width: 445px;
        margin-bottom: 3rem;
    }

    .home__img{
        width: 550px;
        transform: translateX(-6rem);
    }
    .home__triangle{
        height: 700px;
    }
    .home__triangle-1{
        width: 145px;
    }
    .home__triangle-2{
        width: 345px;
    }
    .home__triangle-3{
        width: 545px;
    }
    .logos{
        padding: 3.5rem 0 1rem;
    }
    .logo__img{
        width: 190px;
    }

    .choose__overflow{
        overflow: hidden;
    }
    .choose__img{
        width: 350px;
    }
    .choose__triangle{
        height: 700px;
    }

    .choose__triangle-1{
        width: 520px;
    }
    .choose__triangle-2{
        width: 345px;
    }
    .choose__triangle-3{
        width: 145px;
    }

    .footer{
        padding-bottom: 3rem;
    }

    .footer__form{
        flex-direction: row;
    }

    .footer__content{
        column-gap: 5rem;
    }
    .footer__group{
        grid-template-columns: repeat(2, max-content);
        justify-content: space-between;
        margin-top: 7rem;
    }
}

.footer__social{
    order: 1;
}

@media screen and (min-width:1150px) {
.container{
    margin-left: auto;
    margin-right: auto;
}    

.home__data{
    padding-top: 3rem;
}
.home__images{
    transform: translateX(-9rem);
}
.home__img{
    width: 700px;
    transform: translateX(2rem);
}
.home__triangle{
    height: 995px;
}
.home__triangle-1{
    width: 205px;
}

.home__triangle-2{
    width: 505px;
}

.home__triangle-3{
    width: 705px;
}
.program__container{
    grid-template-columns: repeat(4, 245px);
    padding: 3rem 0;
}

.program__card{
    padding: 2rem;
}
.program__description{
    font-size: var(--normal-font-size);
}

.choose__container{
    column-gap: 8rem;
}

.choose__img{
    width: 450px;
    margin: 0 0 0 auto;
}
.choose__triangle{
    height: 800px;
}
.choose__images{
    position: relative;
}
.choose__data{
    grid-template-columns: repeat(2, max-content);
    gap: 2.5rem 8rem;
}
.choose__description{
    width: 418px;
    margin-bottom: 3.5rem;
}

.pricing__container{
    padding-top: 3rem;
    grid-template-columns: repeat(3, 320px);
}
.pricing__card{
    padding: 2rem 3.5rem;
    row-gap: 2.5rem;
}

.calculate__description{
    width: 415px;
}

.calculate__form{
    width: 505px;
}
.choose__img{
    width: 300px;
}

.scrollup{
    right: 3rem;
}
}