main.css

*, *:before, *:after {
  box-sizing: border-box;
}

body {
  background-color: #3c3a4a;
  padding: 40px;
  font-family: 'Open Sans', sans-serif;
  margin: 0;
}

header {
  max-width: 1000px;
  margin: 0 auto;
}


h1 {
  font-family: 'Kreon', serif;
  font-size: 72px;
  margin: 0;
  color: white;
}

@media screen and (max-width: 667px){
  h1 {
    font-size: 50px;
  }
}

header img {
  height: 29px;
}

.heading-content {
  display: grid;
  grid-template-columns: 1fr;
  grid-gap: 20px;
}

@media screen and (min-width: 662px){
  .heading-content {
    grid-template-columns: 2.5fr 1fr;
  }
}

.contribute-callout {
  padding: 0 20px 20px 20px;
  margin: 20px 0 0 0;
  border: 3px solid #F19A98;
}

.contribute-callout p {
  color: white;
  text-align: center;
}

.contribute-callout a {
  color: #3c3a4a;
  background-color: #F19A98;
  padding: 15px;
  font-weight: 900;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  display: block;
  transition: .5s;
}

.contribute-callout a:hover {
  background-color: #F8CB45;
  transition: .5s;
}

.contribute-callout img {
  height: 27px;
}

.header {
  background-color: #FEF6ED;
  margin: 20px 0 0 0;
  border: 1px solid #FEF6ED;
  padding: 10px 20px;
}

h2 {
  color: #3c3a4a;
}

/* Filters styles */
.filters {
  max-width: 1000px;
  margin: 20px auto 40px auto;
  padding: 10px;
  font-size: 25px;
  color: white;
  display: flex;
  flex-flow: row wrap;
  align-items: center;
}

.filters-heading {
  padding-right: 5px;
}

.filters-options {
  padding: 0 10px;
  position: relative;
}

.filters-options select {
  font-size: 20px;
  padding: 5px;
  width: 100%;
  -webkit-appearance: none;
  -moz-appearance: none;
}

#genre-filter {
  border-radius: 0;
  border: 0;
  padding: 10px 20px;
  background-color: white;
  position: relative;
}

.filters-options:after {
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    content: "\f0dc";
    display: inline-block;
    font-style: normal;
    font-variant: normal;
    text-rendering: auto;
    -webkit-font-smoothing: antialiased;
    color: #3c3a4a;
    position: absolute;
    right: 17px;
    top: 8px;
}

@media screen and (max-width: 460px) {
  .filters {
    justify-content: center;
  }

  .filters-options {
    width: 100%;
  }
}

#books {
    display: grid;
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    grid-gap: 30px;
    max-width: 1000px;
    margin: 30px auto;
    grid-template-rows: min-content;
}

@media screen and (min-width: 425px){
  #books {
    grid-template-columns: 1fr 1fr;
  }
}

@media screen and (min-width: 662px){
  #books {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

/* @media screen and (min-width: 992px){
  #books {
    grid-template-columns: 1fr 1fr 1fr;
  }
} */

@media screen and (min-width: 992px){
  #books {
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr;
  }
}

.emoji-card {
    display: inline-block;
    text-align: center;
    border-radius: 5px;
    position: relative;
}

@media screen and (max-width: 425px){
  .emoji-card {
    margin: 0 15%;
  }
}

.emoji-card-wrapper {
  position: relative;
}


.emoji-images {
  box-shadow: 5px 5px 10px rgba(0,0,0,.1);
  position: relative;
  background-color: white;
  padding: 20px 15px 20px 20px;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  border-left: 15px solid #F19A98;
   min-height: 215px;
}

.emoji-images:after {
  position: absolute;
    content: '';
    height: 22px;
    width: 29px;
    background: #F19A98;
    top: -11px;
    left: 15px;
    z-index: -1;
}

.emoji-images img {
    width: 49px;
    margin-right: 5px;
    margin-bottom: 10px;
}

.emoji-images img:last-child {
  margin-right: 0;
}

.emoji-card-title {
  box-shadow: 5px 5px 10px rgba(0,0,0,.1);
  transition:all .2s;
  transition: visibility 0s, height 0s, opacity 0.5s linear;
  margin-top: 10px;
  margin: 0;
  background-color: #e8afae;
  border-top: 5px solid #3c3a4a;
}

.emoji-card:nth-child(2n) .hint,
.emoji-card:nth-child(2n) .emoji-images:after  {
    background-color: #70D0AB;
}

.emoji-card:nth-child(2n) .emoji-card-title {
  background-color: #9BEAD1;
}

.emoji-card:nth-child(3n) .hint,
.emoji-card:nth-child(3n) .emoji-images:after {
    background-color: #7C62EF;
}

.emoji-card:nth-child(3n) .emoji-card-title {
  background-color: #a797ec;
}

.emoji-card:nth-child(4n) .hint,
.emoji-card:nth-child(4n) .emoji-images:after  {
    background-color: #F8CB45;
}

.emoji-card:nth-child(4n) .emoji-card-title {
  background-color: #f7d46e;
}

.emoji-card:nth-child(2n) .emoji-images{
  border-left: 15px solid #70D0AB;
}

.emoji-card:nth-child(3n) .emoji-images{
  border-left: 15px solid #7C62EF;
}

.emoji-card:nth-child(4n) .emoji-images{
  border-left: 15px solid #F8CB45;
}


.emoji-card-title h3 {
  margin: 0;
}

.emoji-card-title a {
  color: black;
  text-decoration: none;
  font-size: 16.5px;
  font-weight: 700;
}

.title-content {
  padding: 20px;
  text-align: left;
  cursor: initial;
}

.title-content h4 {
  margin: 5px auto 0 auto;
  font-weight: normal;
}

.hide-card {
  opacity: 0;
  height: 0;
  visibility: hidden;
  transition: visibility 0s, opacity 0.5s linear;
  padding: 0;
}

.reveal-card {
  opacity: 1;
  visibility: visible;
  display: block;
}

.hint-container {
  position: absolute;
  right: -2px;
  top: 2px;
  height: 30px;
  width: 30px;
  overflow: visible;
  z-index: 9999;
}

i {
  font-size: 17px;
  background-color: white;
  border-radius: 50%;
  color: #3c3a4a;
}

.hint-symbol {
  background-color: #3c3a4a;
  height: 20px;
  width: 20px;
  border-radius: 50%;
}

.hint {
  opacity: 0;
  visibility: hidden;
  display: block;
  background-color: #F19A98;
  color: #3c3a4a;
  text-transform: capitalize;
  width: 100px;
  padding: 3px;
  border-radius: 5px;
  position: absolute;
  left: -82px;
  top: -30px;
  z-index: -1;
  border: 2px solid #3c3a4a;
}

.hint-reveal {
  opacity: 1;
  visibility: visible;
}

footer {
  text-align: center;
  max-width: 1000px;
  margin: auto;
  border-top: 1px solid white;
  padding-top: 20px;
}

footer p {
  line-height: 26px;
  color: white;
  font-size: 18px;
}

footer span {
  font-weight: bold;
  letter-spacing: 0.5px;
  color: #F8CB45;
}

footer img {
  height: 19px;
}

#message {
  display: none;
  max-width: 1000px;
  margin: auto;
}

#message p {
  color: white;
  font-size: 18px;
  text-align: center;
}

/* General modifier for hiding elements */
.is-hidden {
  display: none;
}