/*=============== GOOGLE FONTS ===============*/
@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@500;600&family=Poppins:wght@400;500&display=swap");

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

  /*========== Colors ==========*/
  /*Color mode HSL(hue, saturation, lightness)*/
  --title-color: hsl(0, 0%, 95%);
  --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 ==========*/
  /*.5rem = 8px | 1rem = 16px ...*/
  --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;
}


/*========== Responsive typography ==========*/
@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 CLASSES ===============*/
.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; /* For animation ScrollReveal */
}

/*=============== HEADER & NAV ===============*/
.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;
}

/* Navigation for mobile devices */
@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); /*for safari - para safari*/
    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: 2%;
  background-color: var(--title-color);
  position: absolute;
  left: 0;
  bottom: -.5rem;
  transition: width .3s;
}

.nav_link:hover{
  width: 70%;
}

.nav_close{
  position: absolute;
  top: 1rem;
  right: 1.5rem;
}

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

/* Add blur to header */
.blur-header::after{
  content:'';
  position: absolute;
  width: 1000%;
  height: 100%;
  background-color: hsla(0, 0%, 0%, .3);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px); /*for safari - para safari*/
  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: 330px;
  justify-content: center;
}

.home_card{
  position: relative;
  overflow: hidden;
}

.home_card-img{
  transition: transform .4s;
  height: 230px;
  width: 100%;
}

.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 1.5rem;
  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); /*for safari - para safari*/
  transition: border-radius 1s ease, background-color 0.5s ease;
  border: 1px solid transparent;
}

.button:hover{
  background-color: transparent;
  border: 1px solid var(--title-color);
  border-radius: 50px;
}
/*=============== ABOUT ===============*/
.about_container{
  row-gap: 3rem;
}

.about_data{
  text-align: center;
}

.section_title{
  margin-bottom: 1rem;
  text-align: center;
}

.about_description{
  margin-bottom: 2rem;
}

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

.about_img{
  width: 300px;
  height: 300px;
  transition: transform .4s;
}

.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_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;
}

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

.explore_shadow{
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
   background: linear-gradient(180deg,
              hsl(0, 0%, 0%) 0%,
              hsla(0, 0%, 0%, 0.7) 10%,
              hsla(0, 0%, 0%, 0) 40%,
              hsla(0, 0%, 0%, 0) 60%,
              hsla(0, 0%, 0%, 0.7) 90%,
              hsl(0, 0%, 0%) 100%);

}

.explore_container{
  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;
  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;
  height: 300px;
  transition: transform .4s;
}

.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);
}

/*=============== 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-block;
  color: var(--title-color);
  font-size: 1.25rem;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px); /*for safari*/
  z-index: var(--z-tooltip);
  transition: bottom .4s, transform .4s;
}

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

/* Show Scroll Up */
.show-scroll{
  bottom: 3rem;
}
/*=============== BREAKPOINTS ===============*/
/* For small devices */
@media screen and (max-width: 340px) {
  .container{
    margin-inline: 1rem;
  }

  .footer_data{
    grid-template-columns: max-content;
  }
}

/* For medium devices */

@media screen and (min-width: 576px) {
  .home_container, 
  .about_container,
  .explore_container,
  .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;
  }
}
/* For large devices */
@media screen and (min-width: 1023px) {
  .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: 1152px) {
  .container{
    margin-inline: auto;
  }

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

  .nav{
    height: calc(var(--header-height) + 1.5rem);
  }
  .blur-header::after{
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px); /*for safari*/
  }

  .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;
  }

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

  .home_description{
    margin-bottom: 3rem;
  }

  .about_img{
    width: 460px;
    height: 450px;
  }

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

  .explore_data,
  .explore_data .section_title{
    text-align: initial;
  }

  .explore_user{
    justify-content: flex-end;
    align-items: flex-end;
    margin-bottom: 1.25rem;
  }

  .join_container{
    grid-template-columns: 400px 340px;
    column-gap: 8.5rem;
    padding-block: 1rem  5rem;
  }

  .join_img{
    width: 460px;
    height: 430px;
  }

  .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;
  }
}