@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@100..900&family=Poppins:wght@400;500&display=swap');

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

    /* Colors */
    --title-color: hsl(0, 0%, 98%);
    --text-color: hsl(0, 0%, 70%);
    --text-color-light: hsl(0, 0%, 60%);
    --body-color: hsl(0, 0%, 0%);
    --container-color: hsl(0, 0%, 8%);

    /* Font and Typography */
    --body-font:"Poppins", sans-serif;
    --second-font:"Montserrat", sans-serif;
    --biggest-font-size: 2.75rem;
    --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-regular:400;
    --font-medium:500;
    --font-semi-bold:600;

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

@media screen and (min-width:1152px) {
    :root{
    --biggest-font-size: 5.5rem;
    --h1-font-size: 2.5rem;
    --h2-font-size: 1.5rem;
    --h3-font-size: 1.25rem;
    --normal-font-size: 1rem;
    --small-font-size: .875rem;
    --smaller-font-size: .813rem;
    }    
}

/* ========== BASE ========= */
*{
    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);
    color: var(--text-color);
}

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

button,
input{
    outline: none;
    border: none;
}

h1,
h2,
h3,
h4{
    color: var(--title-color);
    font-family: var(--second-font);
    font-weight: var(--font-semi-bold);
}

ul{
    list-style: none;
}

a{
    text-decoration: none;
}

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

/* ========== REUSABLE CSS ========= */
.container{
    max-width: 1120px;
    margin-inline: 1.5rem;
}

.grid{
    display: grid;
    gap: 1.5rem;
}

.section{
    padding-block: 5rem 1rem;
}

.section-title{
    text-align: center;
    font-size: var(--h1-font-size);
    margin-bottom: 1.5rem;
}

.main{
    overflow: hidden;
}

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

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

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

.nav-logo{
    color: var(--title-color);
    font-family: var(--second-font);
    font-weight: var(--font-semi-bold);
}

.nav-toggle,
.nav-close{
    display: flex;
    font-size: 1.25rem;
    color: var(--title-color);
    cursor: pointer;
}

/* for mobile */
@media screen and (max-width:1023px) {
    .nav-menu{
        position: fixed;
        top: -100%;
        left: 0;
        background-color: hsla(0, 0%, 0%, .3);
        width: 100%;
        padding-block: 4rem;
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        transition: top .4s;
    }
}

.nav-list{
    text-align: center;
    display: flex;
    flex-direction: column;
    row-gap: 2.5rem;
}

.nav-link{
    position: relative;
    color: var(--title-color);
    font-family: var(--second-font);
    font-weight: var(--font-medium);
}

.nav-link::after{
    content: '';
    width: 0%;
    height: 2px;
    background-color: var(--title-color);
    position: absolute;
    left: 0;
    bottom: -0.5rem;
    transition: width .3s;
}

.nav-link:hover::after{
    width: 70%;
}

.nav-close{
    position: absolute;
    top: 1rem;
    right: 1.5rem;
}

/* Show Menu */

.show-menu{
    top: 0;
}

/* blur header */
.blur-header::after{
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: hsla(0, 0%, 0%, .3);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    top: 0;
    left: 0;
    z-index: -1;

}

/* Active link */
.active-link::after{
    width: 70%;
}

/* ======== HOME ======== */
.home{
    position: relative;
}

.home-bg{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 750px;
    object-fit: cover;
    object-position: center;
}

.home-shadow{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 800px;
    background: linear-gradient(180deg,
                hsla(0, 0%, 0%, 0)58%,
                hsl(0, 0%, 0%)78%);
}

.home-container{
    position: relative;
    padding-top: 3rem;
    row-gap: 3rem;
}

.home-data{
    text-align: center;
}

.home-subtitle{
    font-size: var(--h3-font-size);
    margin-bottom: .5rem;
}

.home-title{
    font-size: var(--biggest-font-size);
    margin-bottom: 1rem;
}

.home-description{
    margin-bottom:2rem ;
    color: var(--title-color);
}

.home-cards{
    grid-template-columns: 240px;
    justify-content: center;
}

.home-card{
    position: relative;
    overflow: hidden;
}

.home-card-img{
    width: 300px;
    height: 200px;
    transition: transform .4s;
}

.home-card-shadow{
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: linear-gradient(180deg,
                hsla(0, 0%, 0%, 0)50%,
                hsl(0, 0%, 0%)125%);
}

.home-card-title{
    position: absolute;
    left: 1rem;
    bottom: 1rem;
    font-size: var(--h3-font-size);
    z-index: 1;
}

.home-card:hover .home-card-img{
    transform: scale(1.2);
}

/* ======= BUTTON ======= */

.button{
    background-color: hsla(0, 0%, 100%, .2);
    padding: 1.25rem 1.25rem;
    color: var(--title-color);
    display: inline-flex;
    align-items: center;
    column-gap: .5rem;
    font-family: var(--second-font);
    font-weight: var(--font-semi-bold);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
}

.button i{
    font-size: 1.25rem;
    transition: transform .4s;
    font-weight: initial;
}

.button:hover i{
    transform: translateX(.25rem);
}
 
/* ======= ABOUT ======= */

.about-container{
    row-gap: 3rem;
}

.about-data{
    text-align: center;
}

.about-description{
    margin-bottom: 2rem;
}

.about-image{
    position: relative;
    justify-self: center;
    overflow: hidden;
}

.about-img{
    width: 300px;
    transition: transform .4s;
}

.about-shadow{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, 
                hsla(0, 0%, 0%, 0)50%,
                hsl(0, 0%, 0%)125%);
}

.about-image:hover .about-img{
    transform: scale(1.2);
}

/* ======= POPULAR ======= */
.popular-container{
    padding-top: 1.5rem;
    grid-template-columns: 240px;
    justify-content: center;
    row-gap: 2.5rem;
}

.popular-image{
    position: relative;
    overflow: hidden;
    margin-bottom: 1rem;
}

.popular-img{
    transition: transform .4s;
}

.popular-shadow{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg,
                hsla(0, 0%, 0%, 0)50%,
                hsl(0, 0%, 0%)125%);
}

.popular-title{
    font-size: var(--h3-font-size);
    margin-bottom: .5rem;
}

.popular-location{
    display: inline-flex;
    align-items: center;
    column-gap: .25rem;
    font-size: var(--small-font-size);
    font-family: var(--second-font);
    font-weight: 500;
}

.popular-location i{
    font-size: 1rem;
}

.popular-image:hover .popular-img{
    transform: scale(1.2);
}

/* ======= EXPLORE ======= */

.explore{
    position: relative;
}

.explore-image{
    position: absolute;
    overflow: hidden;
    width: 100%;
}

.explore-img{
    width: 100%;
    height: 333px;
    object-fit: cover;
    object-position: center;
}

.explore-shadow{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg,
                hsl(0, 0%, 0%)5%,
                hsla(0, 0%, 0%, 0)40%,
                hsla(0, 0%, 0%, 0)60%,
                hsl(0, 0%, 0%)92%);   
}

.explore-content{
    position: relative;
    padding-top: 16rem;
    text-align: center;
    row-gap: 2.5rem;
}

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

.explore-perfil{
    width: 30px;
    height: 35px;
    border-radius: 50%;
}

.explore-name{
    font-size: var(--small-font-size);
    color: var(--title-color);
}

/* ======= JOIN ======= */

.join-container{
    row-gap: 3rem;
    padding-bottom: 2.5rem;
}

.join-data{
    text-align: center;
}

.join-description{
    margin-bottom: 2rem;
}

.join-form{
    display: grid;
    row-gap: 1rem;
}

.join-input{
    padding: 1.25rem 1rem;
    background-color: var(--container-color);
}

.join-button{
    cursor: pointer;
}

.join-image{
    position: relative;
    justify-self: center;
    overflow: hidden;
}

.join-img{
    width: 300px;
    transition: transform .4s;
}

.join-shadow{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg,
                hsla(0, 0%, 0%, 0)50%,
                hsl(0, 0%, 0%)125%);
}

.join-image:hover .join-img{
    transform: scale(1.2);
}

/* ======= FOOTER ======= */
.footer{
    padding-block: 2.5rem;
    background-color: var(--container-color);
}

.footer-content{
    row-gap: 3.5rem;
}

.footer-logo{
    display: inline-block;
    color: var(--title-color);
    font-size: var(--h2-font-size);
    font-family: var(--second-font);
    font-weight: var(--font-semi-bold);
    margin-bottom: 1rem;
}

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

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

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

.footer-link{
    color: var(--text-color);
    transition: color .4s;
}

.footer-link:hover{
    color: var(--title-color);
}

.footer-group,
.footer-social{
    display: flex;
}

.footer-group{
    margin-top: 5rem;
    flex-direction: column;
    align-items: center;
    row-gap: 2rem;
}

.footer-social{
    column-gap: 1.5rem;
}

.footer-social-link{
    color: var(--text-color);
    font-size: 1.25rem;
    transition: color .4s, transform .4s;
}

.footer-social-link:hover{
    color: var(--title-color);
    transform: translateY(-.25rem);
}

.footer-copy{
    font-size: var(--smaller-font-size);
    color: var(--text-color-light);
    text-align: center;
}

/* ======= SCROLL BAR ======= */

::-webkit-scrollbar{
    width: .6rem;
    border-radius: .5rem;
    background-color: hsl(0, 0%, 10%);
}

::-webkit-scrollbar-thumb{
    border-radius: .5rem;
    background-color: hsl(0, 0%, 20%);
}

::-webkit-scrollbar-thumb:hover{
    background-color: hsl(0, 0%, 30%);
}

/* ======= SCROLL UP ======= */

.scrollup{
    position: fixed;
    right: 1rem;
    bottom: -50%;
    background-color: hsla(0, 0%, 100%, .1);
    padding: 6px;
    display: inline-flex;
    color: var(--title-color);
    font-size: 1.25rem;
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: var(--z-tooltip);
    transition: bottom .4s, transform .4s;
}

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

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

/* ======= BREAKPOINTS ======= */

@media screen and (max-width:340px) {
    .container{
        margin-inline: 1rem;
    }
    
    .footer-data{
        grid-template-columns: max-content;
    }
}

@media screen and (min-width: 576px){
    .home-container,
    .about-container,
    .explore-content,
    .join-container{
        grid-template-columns: 380px;
        justify-content: center;
    }

    .footer-data{
        grid-template-columns: repeat(3, max-content);
    }
}

@media screen and (min-width: 768px) {
    .home-cards{
        grid-template-columns: repeat(2, 240px);
    }

    .about-container,
    .join-container{
        grid-template-columns: repeat(2, 350px);
        align-items: center;
    }

    .about-data,
    .about-data .section-title,
    .join-data,
    .join-data .section-title{
        text-align: initial;
    }

    .popular-container{
        grid-template-columns: repeat(2, 240px);
    }

    .explore-img{
        width: 100vw;
    }

    .join-image{
        order: -1;
    }
    
    .footer-content{
        grid-template-columns: repeat(2,max-content);
        justify-content: space-between;
    }

    .footer-group{
        flex-direction: row;
        justify-content: space-between;
    }

    .footer-copy{
        order: -1;
    }
}

@media screen and (min-width: 1050px) {
    .nav-close,
    .nav-toggle{
        display: none;
    }

    .nav-list{
        flex-direction: row;
        column-gap: 4rem;
    }

    .popular-container{
        grid-template-columns: repeat(3,240px);
    }

    .footer-data{
        grid-template-columns: repeat(4, max-content);
        column-gap: 4.5rem;
    }
}

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

    .section{
        padding-block: 7rem 2rem;
    }

    .nav{
        height: calc(var(--header-height) + 2rem);
    }

    .blur-header::after{
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
    }

    .home-container{
        grid-template-columns: initial;
        justify-content: initial;
        row-gap: 4rem;
        padding-top: 6.5rem;
    }

    .home-shadow{
        height: 980px;
    }

    .home-data{
        text-align: initial;
        width: 480px;
    }

    .home-subtitle{
        font-size: var(--h2-font-size);
    }

    .home-description{
        margin-bottom: 2.5rem;
    }

    .home-cards{
        grid-template-columns: repeat(4, 260px);
    }

    .home-card-title{
        left: 1.5rem;
        bottom: 1.5rem;
    }

    .button{
        column-gap: 1.5rem;
    }

    .about-container{
        grid-template-columns: 400px 460px;
        column-gap: 8.5rem;
        padding-block: 1rem;
    }

    .about-description{
        margin-bottom: 3rem;
    }

    .about-img{
        width: 460px;
    }

    .popular-container{
        grid-template-columns: repeat(3, 300px);
        column-gap: 3rem;
        padding-top: 4rem;
    }

    .popular-title{
        font-size: var(--h2-font-size);
    }

    .popular-location{
        font-size: var(--normal-font-size);
    }

    .explore-img{
        height: 600px;
    }

    .explore-content{
        padding-top: 28rem;
        grid-template-columns: 670px 1fr;
    }

    .explore-data,
    .explore-data .section-title{
        text-align: initial;
    }

    .explore-user{
        justify-content: flex-end;
        align-self: flex-end;
        margin-bottom: 1.25rem;
    }

    .join-container{
        grid-template-columns: 460px 340px;
        column-gap: 8.5rem;
        padding-block: 1rem 5rem;
    }

    .join-img{
        width: 460px;
    }

    .join-description{
        margin-bottom: 3rem;
    }

    .footer{
        padding-block: 5rem 3rem;
    }

    .footer-title{
        margin-bottom: 1.5rem;
    }

    .footer-group{
        margin-top: 7rem;
    }

    .footer-social{
        column-gap: 2rem;
    }

    .footer-social-link{
        font-size: 1.5rem;
    }

    .scrollup{
        right: 3rem;
    }
}