/* =============== GOOGLE FONTS ================ */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;700&display=swap');


/* ================== VARIABLES CSS ==================== */
:root{
    --header-height: 3.5rem; /*56px*/

    /* ================= Colors ================= */
    /* Color mode HSL(hue, saturation, lightness) */
    --hue: 152;
    --first-color: hsl(var(--hue), 24%, 32%);
    --first-color-alt:  hsl(var(--hue), 24%, 28%);
    --first-color-light:  hsl(var(--hue), 24%, 66%);
    --first-color-lighten:  hsl(var(--hue), 24%, 92%);
    --title-color:  hsl(var(--hue), 4%, 15%);
    --text-color:  hsl(var(--hue), 4%, 35%);
    --text-color-light:  hsl(var(--hue), 4%, 55%);
    --body-color:  hsl(var(--hue), 0%, 100%);
    --container-color: #fff;

    /* ================= Font and Typography ==================== */
    /* .5rem = 8px | 1rem = 16px ... */
    --body-font:  'Poppins', sans-serif;;
    --big-font-size: 2rem;
    --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-medium: 500;
    --font-semi-bold: 600;

    /* ================= Margins Bottom ================== */
    /* .5rem = 8px | 1rem = 16px ... */
    --mb-0-5: .5rem;
    --mb-0-75: .75rem;
    --mb-1: 1rem;
    --mb-1-5: 1.5rem;
    --mb-2: 2rem;
    --mb-2-5: 2.5rem;

    /* ================ z index ==================== */
    --z-tooltip: 10;
    --z-fixed: 100;
}

/* Responsive typography */
@media screen and (min-width: 968px) {
    :root{
        --big-font-size: 3.5rem;
        --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;
    }
}

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

html{
    scroll-behavior: smooth;
}

body,
button,
input,
textarea{
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
}

body{
    margin: var(--header-height) 0 0 0;
    background-color: var(--body-color);
    color: var(--text-color);
    transition: .4s ease; /* For dark mode animation */
}

button{
    cursor: pointer;
    border: none;
    outline: none;
}

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

ul{
    list-style: none;
}

a{
    text-decoration: none;
}

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

/* =================== THEME =================== */
/* =================== Variables Dark Theme =================== */
body.dark-theme{
    --first-color-dark: hsl(var(--hue), 8%, 20%);
    --title-color:  hsl(var(--hue), 4%, 95%);
    --text-color:  hsl(var(--hue), 4%, 75%);
    --body-color:  hsl(var(--hue), 8%, 12%);
    --container-color: hsl(var(--hue), 8%, 16%);
}

/* =================== Button Dark / Light =================== */
.change__theme{
    color: var(--title-color);
    font-size: 1.15rem;
    cursor: pointer;
}

.nav__btns{
    display: inline-flex;
    align-items: center;
    column-gap: 1rem;
}

/* =================== 
Color changes in some parts 
of the website, 
in the dark theme
=================== */
.dark-theme .steps__bg,
.dark-theme .questions{
    background-color: var(--first-color-dark);
}

.dark-theme .product__circle,
.dark-theme .footer__subscribe{
    background-color: var(--container-color);
}

.dark-theme .scroll-header{
    box-shadow: 0 1px 4px hsla(var(--hue), 4%, 4%, .3);
}


/* =================== REUSABLE CSS CLASSES =================== */
.section{
    padding: 5.5rem 0 1rem;
}

.section__title,
.section__title-center{
    font-size: var(--h2-font-size);
    margin-bottom: var(--mb-2);
    line-height: 140%;
}

.section__title-center{
    text-align: center;
}

.container{
    max-width: 968px;
    margin-left: var(--mb-1-5);
    margin-right: var(--mb-1-5);
}

.grid{
    display: grid;
}

.main{
    overflow: hidden;  /*for animation*/
}


/* ================ HEADER =================== */
.header{
    width: 100%;
    background-color: var(--body-color);
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-fixed);
    transition: .4s ease; /* For animation dark mode*/
}

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

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

.nav__logo{
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: -1px;
    display: inline-flex;
    align-items: center;
    column-gap: .5rem;
    transition: all .3s ease;
}

.nav__logo-icon{
    font-size: 1.15rem;
    color: var(--first-color);
}

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

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

@media screen and (max-width: 767px) {
    .nav__menu{
        position: fixed;
        background-color: var(--container-color);
        width: 80%;
        height: 100%;
        top: 0;
        right: -100%;
        box-shadow: -2px 0 4px hsla(var(--hue), 24%, 15%, .1);
        padding: 4rem 0 0 3rem;
        border-radius: 1rem 0 0 1rem;
        transition: .3s;
        z-index: var(--z-fixed);
    }
}

.nav__close{
    font-size: 1.5rem;
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    cursor: pointer;
}

.nav__list{
    display: flex;
    flex-direction: column;
    row-gap: 1.5rem;
} 

.nav__link{
    color: var(--title-color);
    font-weight: var(--font-medium);
    transition: all .3s ease;
}

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

/* Show menu */
.show-menu{
    right: 0;
}

/* Change background header */
.scroll-header{
    box-shadow: 0 1px 4px hsla(var(--hue), 4%, 15%, .1);
}

/* Active Link */
.active-link{
    position: relative;
    color: var(--first-color);
}

.active-link::after{
    content: '';
    position: absolute;
    bottom: -.5rem;
    left: 0;
    width: 50%;
    height: 2px;
    background-color: var(--first-color);
}

/* ================ HOME =================== */
.home{
    padding: 3.5rem 0 2rem;
}

.home__container{
    position: relative;
    row-gap: 2rem;
}

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

.home__title{
    font-size: var(--big-font-size);
    line-height: 140%;
    margin-bottom: var(--mb-1);
}

.home__description{
    margin-bottom: var(--mb-2-5);
}

.home__social{
    position: absolute;
    top: 2rem;
    right: -1rem;
    display: grid;
    justify-items: center;
    row-gap: 3.5rem;
}

.home__social-follow{
    font-weight: var(--font-medium);
    font-size: var(--smaller-font-size);
    color: var(--first-color);
    position: relative;
    transform: rotate(90deg);
}

.home__social-follow::after{
    content: '';
    position: absolute;
    width: 1rem;
    height: 2px;
    background-color: var(--first-color);
    right: -45%;
    top: 50%;
}

.home__social-links{
    display: inline-flex;
    flex-direction: column;
    row-gap: .5rem;
}

.home__social-link{
    font-size: 1rem;
    color: var(--first-color);
    transition: .3s ease;
}

.home__social-link:hover{
    transform: translateX(.25rem);
}

/* ================ BUTTONS =================== */
.button{
    display: inline-block;
    background-color: var(--first-color);
    color: #FFF;
    padding: 1rem 1.75rem;
    border-radius: .5rem;
    font-weight: var(--font-medium);
    transition: .3s ease;
}

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

.button__icon{
    transition: .3s ease;
}

.button:hover .button__icon{
    transform: translateX(.25rem);
}

.button--flex{
    display: inline-flex;
    align-items: center;
    column-gap: .5rem;

}

.button--link{ 
    color: var(--first-color);
    font-weight: var(--font-medium);
    transition: .3s ease;
}

.button--link:hover .button__icon{
    transform: translateX(.25rem);
}

/* ================ ABOUT =================== */
.about__container{
    row-gap: 2rem;
}

.about__img{
    width: 280px;
    justify-self: center;
}

.about__title{
    margin-bottom: var(--mb-1);    
}

.about__description{
    margin-bottom: var(--mb-2);
}

.about__details{
    display: grid;
    row-gap: 1rem;
    margin-bottom: var(--mb-2-5);
}

.about__details-description{
    display: inline-flex;
    column-gap: .5rem;
    font-size: var(--small-font-size);
}

.about__details-icon{
    font-size: 1rem;
    color: var(--first-color);
    margin-top: 0.15rem;
}


/* ================ STEPS =================== */
.steps__bg{
    background-color: var(--first-color);
    padding: 3rem 2rem 2rem;
    border-radius: 1rem;
}

.steps__container{
    gap: 2rem;
    padding-top: 1rem;
}

.steps__title{
    color: #fff;
}

.steps__card{
    background-color: var(--container-color);
    padding: 2.5rem 3rem 2rem 1.5rem;
    border-radius: 1rem;
}

.steps__card-number{
    display: inline-block;
    background-color: var(--first-color-alt);
    color: #fff;
    padding: 0.5rem .75rem;
    border-radius: .25rem;
    font-size: var(--h2-font-size);
    margin-bottom: var(--mb-1-5);
    transition: .3s ease;
}

.steps__card-title{
    font-size: var(--h3-font-size);
    margin-bottom: var(--mb-0-5);
}

.steps__card-description{
    font-size: var(--small-font-size);
}

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


/* ================ PRODUCTS =================== */
.product__description{
    text-align: center;
}

.product__container{
    padding: 3rem 0;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem 3rem;
}

.product__card{
    display: grid;
    position: relative;
}

.product__img{
    position: relative;
    width: 120px;
    justify-self: center;
    margin-bottom: var(--mb-0-75);
    transition: .3s ease;
}

.product__title,
.product__price{
    font-size: var(--small-font-size);
    font-weight: var(--font-semi-bold);
    color: var(--title-color);
}

.product__title{
    margin-bottom: .25rem;
}

.product__button{
    position: absolute;
    right: 0;
    bottom: 0;
    background-color: var(--first-color);
    color: #fff;
    padding: 0.25rem;
    border-radius: .35rem;
    font-size: 1.15rem;
}

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

.product__circle{
    width: 90px;
    height: 90px;
    background-color: var(--first-color-lighten);
    border-radius: 50%;
    position: absolute;
    top: 18%;
    left: 5%;
}

.product__card:hover .product__img{
    transform: translateY(-.5rem);
}


/* ================ QUESTIONS =================== */
.questions{
    background-color: var(--first-color-lighten);
}

.questions__container{
    gap: 1.5rem;
    padding: 1.5rem 0;
}

.questions__group{
    display: grid;
    row-gap: 1.5rem;
}

.questions__item{
    background-color: var(--container-color);
    border-radius: .25rem;
}

.questions__item-title{
    font-size: var(--small-font-size);
    font-weight: var(--font-medium);
}

.questions__icon{
    font-size: 1.25rem;
    color: var(--title-color);
}

.questions__description{
    font-size: var(--smaller-font-size);
    padding: 0 1.25rem 1.25rem 2.5rem;
}

.questions__header{
    display: flex;
    align-items: center;
    column-gap: .5rem;
    padding: 0.75rem .5rem;
    cursor: pointer;
}

.questions__content{
    overflow: hidden;
    height: 0;
}

.questions__item,
.questions__header,
.questions__item-title,
.questions__icon,
.questions__description,
.questions__content{
    transition: .3s ease;
}

.questions__item:hover{
    box-shadow: 0 2px 8px hsla(var(--hue), 4%, 15%, .15);
}

/* Rotate icon, change color of titles and background */
.accordion-open .questions__header,
.accordion-open .questions__content{
    background-color: var(--first-color);
}

.accordion-open .questions__item-title,
.accordion-open .questions__description,
.accordion-open .questions__icon{
    color: #fff;
}

.accordion-open .questions__icon{
    transform: rotate(45deg);
}

/* ================ CONTACT =================== */
.contact__container{
    row-gap: 3.5rem;
}

.contact__data{
    display: grid;
    row-gap: 2rem;
}

.contact__subtitle{
    font-size: var(--normal-font-size);
    font-weight: var(--font-medium);
    color: var(--text-color);
    margin-bottom: var(--mb-0-5);
}

.contact__description{
    display: inline-flex;
    align-items: center;
    column-gap: .5rem;
    color: var(--title-color);
    font-weight: var(--font-medium);
}

.contact__icon{
    font-size: 1.25rem;
}

.contact__inputs{
    display: grid;
    row-gap: 2rem;
    margin-bottom: var(--mb-2-5);
}

.contact__content{
    position: relative;
    height: 3rem;
    border-bottom: 1px solid var(--text-color-light);
}

.contact__input{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 1rem 1rem 1rem 0;
    background: none;
    color: var(--text-color);
    border: none;
    outline: none;
    z-index: 1;
}

.contact__label{
    position: absolute;
    top: 0.75rem;
    width: 100%;
    font-size: var(--small-font-size);
    color: var(--text-color-light);
    transition: .3s ease;
}

.contact__area{
    height: 7rem;
}

.contact__area textarea{
    resize: none;
}

/* Input focus move up label */
.contact__input:focus + .contact__label{
    top: -.75rem;
    left: 0;
    font-size: var(--smaller-font-size);
    z-index: 10;
}

/* Input focus sticky top label */
.contact__input:not(:placeholder-shown).contact__input:not(:focus) + .contact__label{
    top: -.75rem;
    font-size: var(--smaller-font-size);
    z-index: 10;
  }


/* ================ FOOTER =================== */
.footer__container{
    row-gap: 3rem;
}

.footer__logo{
    display: inline-flex;
    align-items: center;
    column-gap: .5rem;
    color: var(--title-color);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: var(--mb-2-5);
    transition: .3s ease;
}

.footer__logo-icon{
    font-size: 1.1rem;
    color: var(--first-color);
}

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

.footer__title{
    font-size: var(--h3-font-size);
    margin-bottom: var(--mb-1-5);
}

.footer__subscribe{
    background-color: var(--first-color-lighten);
    padding: 0.75rem;
    display: flex;
    justify-content: space-between;
    border-radius: .5rem;
}

.footer__input{
    width: 70%;
    padding: 0 .5rem;
    background: none;
    color: var(--text-color);
    border: none;
    outline: none;
}

.footer__button{
    padding: 1rem;
}

.footer__data{
    display: grid;
    row-gap: .75rem;
}

.footer__information{
    font-size: var(--small-font-size);
}

.footer__social{
    display: inline-flex;
    column-gap: .75rem;
}

.footer__social-link{
    font-size: 1rem;
    color: var(--text-color);
    transition: .3s ease;
}

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

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

.footer__card{
    width: 35px;
}

.footer__copy{
    text-align: center;
    font-size: var(--smaller-font-size);
    color: var(--text-color-light);
    margin: 5rem 0 1rem;
}

/* ================ SCROLL UP =================== */
.scrollup{
    position: fixed;
    background-color: var(--first-color);
    right: 1rem;
    bottom: -30%;
    display: inline-flex;
    padding: .5rem;
    border-radius: .25rem;
    z-index: var(--z-tooltip);
    opacity: .8;
    transition: .4s ease;
}

.scrollup__icon{
    font-size: 1rem;
    color: #fff;
}

.scrollup:hover{
    background-color: var(--first-color-alt);
    opacity: 1;
}

/* Show Scroll Up */
.show-scroll{
    bottom: 3rem;
}

/* ================ SCROLL BAR =================== */
::-webkit-scrollbar{
   width: .6rem; 
   background: hsl(var(--hue), 4%, 53%);
}

::-webkit-scrollbar-thumb{
    background: hsl(var(--hue), 4%, 29%);
    border-radius: .5rem;
}


/* ================ BREAKPOINTS =================== */
/* For small devices */
@media screen and (max-width: 320px) {
    .container{
        margin-left: var(--mb-1);
        margin-right: var(--mb-1);
    }

    .home__img{
        width: 180px;
    }

    .home__title{
        font-size: var(--h1-font-size);
    }

    .steps__bg{
        padding: 2rem 1rem;
    }
    
    .steps__card{
        padding: 1.5rem;
    }
    
    .product__container{
        grid-template-columns: .6fr;
        justify-content: center;
    }
}


/* For medium devices */
@media screen and (min-width: 576px) {
    .steps__container{
        grid-template-columns: repeat(2, 170px);
        justify-content: center;
        column-gap: 5rem;
    }

    .product__container{
        grid-template-columns: repeat(2, 1fr);
    }

    .product__description{
        padding: 0 4rem;
    }

    .footer__subscribe{
        width: 400px;
    }
}


@media screen and (min-width: 767px) {
    body{
        margin: 0; 
    }

    .nav{
        height: calc(var(--header-height) + 1.5rem);
        column-gap: 3rem;
    }

    .nav__toggle,
    .nav__close{
        display: none;
    }

    .nav__list{
        flex-direction: row;
        column-gap: 3rem;
    }

    .nav__menu{
        margin-left: auto;
    }

    .home__container,
    .about__container,
    .questions__container,
    .contact__container,
    .footer__container{
        grid-template-columns: repeat(2, 1fr);
    }

    .home{
        padding: 10rem 0 5rem;
    }

    .home__container{
        align-items: center;
    }

    .home__img{
        width: 280px;
        order: 1;
    }

    .home__social{
        top: 30%;
    }

    .questions__container{
        align-items: flex-start;
    }

    .footer__container{
        column-gap: 3rem;
    }

    .footer__subscribe{
        width: initial;
    }
    
    .steps__container{
        grid-template-columns: repeat(3, 1fr);
        column-gap: 1rem;
    }
}


/* For large devices */
@media screen and (min-width: 992px) {
    .container{
        margin-left: auto;
        margin-right: auto;
    }

    .section{
        padding: 8rem 0 1rem;
    }

    .section__title,
    .section__title-center{
        font-size: var(--h1-font-size);
    }

    .home{
        padding: 13rem 0 5rem;
    }

    .home__img{
        width: 350px;
    }

    .home__description{
        padding-right: 7rem;
    }

    .about__img{
        width: 380px;
    }

    .steps__container{
        grid-template-columns: repeat(3, 1fr);
    }

    .steps__bg{
        padding: 3.5rem 2.5rem;
    }

    .steps__card-title{
        font-size: var(--normal-font-size);
    }

    .product__description{
        padding: 0 16rem;
    }

    .product__container{
        padding: 4rem 0;
        grid-template-columns: repeat(3, 185px);
        gap: 4rem 6rem;
       justify-content: center;
    }

    .product__img{
        width: 160px;
    }

    .product__circle{
        width: 110px;
        height: 110px;
    }

    .product__title,
    .product__price{
        font-size: var(--normal-font-size);
    }

    .questions__container{
        padding: 1rem 0 4rem;
    }

    .questions__title{
        text-align: initial;
    }

    .questions__group{
        row-gap: 2rem;
    }

    .questions__header{
        padding: 1rem;
    }

    .questions__description{
        padding: .5rem 3.5rem 2.25rem 2.75rem;
    }

    .footer__logo{
        font-size: var(--h3-font-size);
    }

    .footer__container{
        grid-template-columns: 1fr .5fr .5fr .5fr;
    }

    .footer__copy{
        margin: 7rem 0 2rem;
    }
}  


@media screen and (min-width: 1200px) {
    .home__social{
        right: -3rem;
        row-gap: 4.5rem;
    }

    .home__social-follow{
        font-size: var(--small-font-size);
    }

    .home__social-follow::after{
        width: 1.5rem;
        right: -60%;
    }

    .home__social-link{
         font-size: 1.15rem;
    }

    .about__container{
        column-gap: 7rem;
    }

    .scrollup{
        right: 3rem;
    }

}