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

/*==================== VARIABLES CSS ====================*/
:root {
    --header-height: 3rem;

    /*========== Colors ==========*/
    /* Change favorite color */
    --hue-color: 256; /*Purple 250 - Green 142 - Blue 230 - Pink 340*/

    /* HSL color mode */
    /* Always needed */
    --first-color: hsl(var(--hue-color), 69%, 61%);
    --first-color-alt: hsl(var(--hue-color), 57%, 53%);
    --first-color-lighter: hsl(var(--hue-color), 92%, 85%);
    --text-color-light: hsl(var(--hue-color), 8%, 65%);
    /* Colors dark mode */
    --first-color-second: hsl(var(--hue-color), 30%, 8%);
    --title-color: hsl(var(--hue-color), 8%, 95%);
    --text-color: hsl(var(--hue-color), 8%, 75%);
    --input-color: hsl(var(--hue-color), 29%, 16%);
    --body-color: hsl(var(--hue-color), 20%, 12%);
    --container-color: hsl(var(--hue-color), 22%, 16%);
    --scroll-bar-color: hsl(var(--hue-color), 12%, 48%);
    --scroll-thumb-color: hsl(var(--hue-color), 12%, 36%);

    /*========== Font and typography ==========*/
    --body-font: 'Poppins', sans-serif;

    /* .5rem = 8px, 1rem = 16px, 1.5rem = 24px ... */
    --big-font-size: 2rem;
    --h1-font-size: 1.5rem;
    --h2-font-size: 1.25rem;
    --h3-font-size: 1.125rem;
    --normal-font-size: .938rem;
    --small-font-size: .813rem;
    --smaller-font-size: .75rem;

    /*========== Font weight ==========*/
    --font-medium: 500;
    --font-semi-bold: 600;

    /*========== Margenes Bottom ==========*/
    /* .25rem = 4px, .5rem = 8px, .75rem = 12px ... */
    --mb-0-25: .25rem;
    --mb-0-5: .5rem;
    --mb-0-75: .75rem;
    --mb-1: 1rem;
    --mb-1-5: 1.5rem;
    --mb-2: 2rem;
    --mb-2-5: 2.5rem;
    --mb-3: 3rem;

    /*========== z index ==========*/
    --z-tooltip: 10;
    --z-fixed: 100;
    --z-modal: 1000;
}

/* Font size for large devices */
@media screen and (min-width: 968px) {
    :root {
        --big-font-size: 3rem;
        --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;
    }
}

/*========== Variables Dark theme ==========*/
body.light-theme{
  /* HSL color mode */
  /* Colors light mode */
  --first-color-second: hsl(var(--hue-color), 69%, 61%);
  --title-color: hsl(var(--hue-color), 8%, 15%);
  --text-color: hsl(var(--hue-color), 8%, 45%);
  --input-color: hsl(var(--hue-color), 70%, 96%);
  --body-color: hsl(var(--hue-color), 60%, 99%);
  --container-color: #fff;
  --scroll-bar-color: hsl(var(--hue-color), 12%, 90%);
  --scroll-thumb-color: hsl(var(--hue-color), 12%, 80%);
}

/*========== Button Dark/Light ==========*/
.nav__btns{
  display: flex;
  align-items: center;
}

.change-theme{
  font-size: 1.25rem;
  color: var(--title-color);
  margin-right: var(--mb-1);
  cursor: pointer;
}

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

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0 0 var(--header-height) 0;
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  background-color: var(--body-color);
  color: var(--text-color);
}

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

ul {
  list-style: none;
}

a {
  text-decoration: none;
}

a:link:not(.nav__link):not(.footer__link):not(.about__contactButton){
  color: var(--first-color);
}

a:visited:not(.nav__link):not(.footer__link):not(.about__contactButton){
  color: var(--first-color);
}


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

/*==================== REUSABLE CSS CLASSES ====================*/
.section {
  padding: 2rem 0 4rem;
}

.section__title {
  font-size: var(--h1-font-size);
  color: var(--title-color);
}

.section__subtitle {
  display: block;
  font-size: var(--small-font-size);
  margin-bottom: var(--mb-3);
}

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

/*==================== LAYOUT ====================*/
.container {
  max-width: 768px;
  margin-left: var(--mb-1-5);
  margin-right: var(--mb-1-5);
}

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

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

/*==================== NAV ====================*/
.nav{
  max-width: 968px;
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__toggle{
  font-size: 1.1rem;
  cursor: pointer;
}

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

@media screen and (max-width: 767px){
  .nav__menu{
    position:fixed;
    bottom: -100%;
    left: 0;
    width: 100%;
    background-color: var(--body-color);
    padding: 2rem 1.5rem 4rem;
    box-shadow: 0 -1px 4px rgba(0,0,0,.15);
    border-radius: 1.5rem 1.5rem 0 0;
    transition: .3s;
  }
}

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

.nav__link{
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: var(--small-font-size);
  color: var(--title-color);
  font-weight: var(--font-medium);
}

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

.nav__icon{
  font-size: 1.2rem;
}

.nav__close{
  position: absolute;
  right: 1.3rem;
  bottom: .5rem;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--first-color);
}

.nav__close:hover{
   color: var(--first-color-alt);
}
/* show menu */
.show-menu{
  bottom: 0;
}

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

/* Change background header */
.scroll-header{
  box-shadow: 0 -1px 4px rgba(0,0,0,.25);
}

/*==================== ABOUT ====================*/
.about__container{
  gap: 1rem;
}

.about__content{
  grid-template-columns: .5fr 3fr;
  padding-top: 3.5rem;
  align-items: center;
}

.about__circle{
  width: 200px;
  fill: var(--first-color);
  margin-bottom: -4rem;
}

.about__circle-img{
  width: 100px;
}

.about__content{
  grid-column: 1/3;
}

.about__header{
  cursor: pointer
}

.about__title{
  font-size: var(--big-font-size);
}

.about__subtitle{
  font-size: var(--h3-font-size);
  color: var(--text-color);
  font-weight: var(--font-medium);
  margin-bottom: var(--mb-0-75);
}

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

.about__contactButton{
  width: max-content;
}
  
.about__icon{
  cursor: pointer;
  font-size: var(--small-font-size);
  margin-top: .5rem;
}

.about__close .about__list{
  height: 0;
  overflow: hidden;
}

.about__open .about__list{
  height: max-content;
  margin-bottom: var(--mb-2-5);
}



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

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

.button__icon{
  font-size: 1.25rem;
  margin-left: var(--mb-0-5);
  transition: .3s;
}

.button--flex{
  display: inline-flex;
  align-items: center;
}

.button--small{
  padding: .75rem 1rem;
}

.button--link{
  padding: 0;
  background-color: transparent;
  color: var(--first-color);
}

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


/*==================== EXPERIENCE ====================*/
.experience__tabs{
  display: flex;
  justify-content: space-evenly;
  margin-bottom: var(--mb-2);
}

.experience__button{
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
  cursor: pointer;
}

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

.experience__icon{
  font-size: 1.8rem;
  margin-right: var(--mb-0-25);
}

.experience__data{
  display: grid;
  grid-template-columns: 1fr max-content 1fr;
  column-gap: 1.5rem;
}

.experience__title{
  font-size: var(--normal-font-size);
  font-weight: var(--font-medium);
}

.experience__subtitle{
  display: inline-block;
  font-size: var(--small-font-size);
  margin-bottom: var(--mb-1);
}

.experience__calendar{
  font-size: var(--smaller-font-size);
  color: var(--text-color-light);
}

.experience__rounder{
  display: inline-block;
  width: 13px;
  height: 13px;
  background-color: var(--first-color);
  border-radius: 50%;
}

.experience__line{
  display: block;
  width: 1px;
  height: 100%;
  background-color: var(--first-color);
  transform: translate(6px, -7px);
}

.experience [data-content]{
  display: none;
}

.experience__active[data-content]{
  display: block;
}

.experience__button.experience__active{
  color: var(--first-color);
}


/*==================== PUBLICATIONS ====================*/
.publications__container{
  gap: 1.5rem;
  grid-template-columns: repeat(1,1fr);
}

.publications__date{
  text-align: right;
  color: var(--text-color-light);
}

.publications__content{
  position: relative;
  background-color: var(--container-color);
  padding: 1.5rem .5rem 1.25rem 1.5rem;
  border-radius: .25rem;
  box-shadow: 0 2px 4px rgba(0,0,0,.15);
  transition: .3s;
}

.publications__content:hover{
  box-shadow: 0 4px 8px rgba(0,0,0,.15);
}

.publications__icon{
  display: none;
  font-size: 1.5rem;
  color: var(--first-color);
  margin-bottom: var(--mb-1);
}

.publications__title{
  font-size: var(--h3-font-size);
  margin-bottom: var(--mb-0-5);
  font-weight: var(--font-medium);
}

.publications__button{
  cursor: pointer;
  font-size: var(--small-font-size);
}

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

.publications__modal{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0,0,0,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1rem;
  z-index: var(--z-modal);
  opacity: 0;
  visibility: hidden;
  transition: .3s;
}

.publications__modal-content{
  position: relative;
  background-color: var(--container-color);
  padding: 1.5rem;
  border-radius: .5rem; 
}

.publications__modal-publications{
  row-gap: 1rem;
}

.publications__modal-publication{
  display: flex;
}

.publications__modal-title{
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
  margin-bottom: var(--mb-1-5);
}

.publications__modal-close{
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  color: var(--first-color);
  cursor: pointer;
}

.publications__modal-icon{
  display: none;
}

.publications__link{
  margin-right: 1rem;
}

/* Active Modal */

.active-modal{
  opacity: 1;
  visibility: visible;
}

/*==================== RESOURCES ====================*/
.resources__container{
  row-gap: 0;
}

.resources__header{
  display: flex;
  align-items: center;
  margin-bottom: var(--mb-1);
  cursor: pointer; 
}

.resources__icon,
.resources__arrow{
  font-size: 2rem;
  color: var(--first-color);
}

.resources__icon{
  margin-right: var(--mb-0-75);
}

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

.resources__subtitle{
  font-size: var(--small-font-size);
  color: var(--text-color-light);
}

.resources__arrow{
  margin-left: auto;
  transition: .4s;
}

.resources__list{
  row-gap: 1.5rem;
  padding-left: 1rem;
}

/*.resources__titles{
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--mb-0-5);
}*/

.resources__name{
  font-size: var(--normal-font-size);
  font-weight: var(--font-medium);
}

.resources__close .resources__list{
  height: 0;
  overflow: hidden;
}

.resources__open .resources__list{
  height: max-content;
  margin-bottom: var(--mb-2-5);
}

.resources__open .resources__arrow{
  transform: rotate(-180deg);
}

/*==================== CONTACT ME ====================*/
.contact__container{
  row-gap: 3rem;
}

.contact__information{
  display: flex;
  margin-bottom: var(--mb-2);
  cursor: pointer;
}

.contact__icon{
  font-size: 2rem;
  color: var(--first-color);
  margin-right: var(--mb-0-75);
}

.contact__title{
  font-size: var(--h3-font-size);
  font-weight: var(--font-medium);
}

.contact__subtitle{
  font-size: var(--small-font-size);
  color: var(--text-color-light);
}

.contact__content{
  background-color: var(--input-color);
  border-radius: .5rem;
  padding: 0.75rem 1rem .25rem;
}

.contact__label{
  font-size: var(--smaller-font-size);
  color: var(--title-color);
}

.contact__input{
  width: 100%;
  background-color: var(--input-color);
  color: var(--text-color);
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  border: none;
  outline: none;
  padding: .25rem .5rem .5rem 0;
}


/*==================== FOOTER ====================*/
.footer{
  padding-top: 2rem;
}

.footer__container{
  row-gap: 3.5rem;
}

.footer__bg{
  background-color: var(--first-color-second);
  padding: 2rem 0 3rem;
}

.footer__title{
  font-size: var(--h1-font-size);
  margin-bottom: var(--mb-0-25);
}

.footer__links{
  display: flex;
  flex-wrap: wrap;
  flex: 50%;
  column-gap: 1.5rem;
  row-gap: 1.5rem;
}

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

.footer__title,
.footer__link{
  color: #fff;
}
/*========== SCROLL UP ==========*/
.scrollup{
  position: fixed;
  right: 1rem;
  bottom: -20%;
  background-color: var(--first-color);
  opacity: .8;
  padding: 0 .3rem;
  border-radius: .4rem;
  z-index: var(--z-tooltip);
  transition: .4s;
}

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

.scrollup__icon{
  font-size: 1.5rem;
  color: #fff;
}


/* Show scroll */
.show-scroll{
  bottom: 5rem;
}

/*========== SCROLL BAR ==========*/
::-webkit-scrollbar{
  width: .60rem;
  background-color: var(--scroll-bar-color);
  border-radius: .5rem;
}

::-webkit-scrollbar-thumb{
  background-color: var(--scroll-thumb-color);
  border-radius: .5rem;
}

::-webkit-scrollbar-thumb:hover{
  background-color: var(--text-color-light);
}

/*==================== MEDIA QUERIES ====================*/
/* For small devices */
@media screen and (max-width: 350px){
  .container{
    margin-left: var(--mb-1);
    margin-right: var(--mb-1);
    align-content: center;
  }

  .nav__menu{
    padding: 2rem .25rem 4rem;
  }

  .nav__list{
    column-gap: 0;
  }

}

/* For medium devices */
@media screen and (min-width: 568px){
  .about__content{
    grid-template-columns: max-content 1fr 1fr;
  }

  .about__data{
    grid-column: initial;
  }

  .about__circle-img{
    order: 1;
    justify-self: center;
  }

  @media screen and (min-width: 768px){
    .container{
      margin-left: auto;
      margin-right: auto;
    }

    body{
      margin: 0;
    }

    .section{
      padding: 6rem 0 2rem;
    }

    .section__subtitle{
      margin-bottom: 4rem;
    }

    .header{
      top: 0;
      bottom: initial;
    }

    .header,
    .main,
    .footer__container{
      padding: 0 1rem;
    }

    .nav{
      height: calc(var(--header-height) + 1.5rem);
      column-gap: 1rem;
    }

    .nav__icon,
    .nav__close,
    .nav__toggle{
      display: none;
    }

    .nav__list{
      display: flex;
      column-gap: 2rem;
    }

    .nav__menu{
      margin-left: auto;
    }

    .change-theme{
      margin: 0;
    }

    .publications__modal-content{
      width: 625px;
    }

  }
}

/* For large devices */
@media screen and (min-width: 1024px){
  .header,
  .main,
  .footer__container{
    padding: 0;
  }

  .about__circle{
    width: 320px;
  }
}