@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

*{
    padding: 0;
    margin:0;
    box-sizing: border-box;
    font-family: "Roboto", sans-serif;
}
html {
    scroll-behavior: smooth;
}
body{
    max-width: 100vw;
    overflow-x: hidden;
}
nav{
    height: 80px;
    display: flex;
}
a{
    text-decoration: none;
}
a:hover{
    text-decoration: underline;
}
img{
    width: 100%;
    height: 100%;
    max-height: 50vh;
    padding: 20px;
}
p{
    line-height: 1.5;
}
.nav__container{
    display: flex;
    width: 100%;
    max-width: 1200px;
    padding: 0 24px;
    justify-content: space-between;
    align-items: center;
    margin: 0 auto;
}
.purple{
    color: #7342d6;
}
.logo {
    width: 160px;
}
ul{
    display: flex;
}
li{
    list-style-type: none;
}
.nav__link {
    margin-left: 16px;
    text-decoration: none;
    font-size: 20px;
    color: #7342d6;
    font-weight: bold;
    padding: 8px;
}
.nav__link:hover{
    text-decoration: underline;
}
.nav__link--primary {
    border: 2px solid #7342d6;
    border-radius: 4px;
}
.nav__link--primary:hover{
    text-decoration: none;
}
.btn__menu {
    display: none;
    background-color: transparent;
    border: none;
    font-size: 40px;
    text-align: center;
    color: #7342d6;
  
}
.menu__backdrop{
    position: absolute;
    background-color: #242424;
    top:0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 300ms ease;
    opacity: 0;
    visibility: hidden;
    transform: translate(100%);
}
.menu--open {
    max-height: 100vh;
    overflow-y: hidden;
}
.menu--open .menu__backdrop{
    visibility: visible;
    opacity: 1;
    transform: translate(0);
}

.menu__links {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.menu__list{
    padding: 32px;
}
.menu__link {
    font-size: 40px;
    color: white;
}
.btn__menu--close {
   position: absolute;
   right: 20px;
   top: 10px;
   padding: 8px;
   color: white; 
}

/* LANDING */
#landing{
    background-color: rgba(115,66,214,0.1);
}
header{
    height: calc(100vh - 80px);
}
.header__container{
    width: 100%;
    padding-top: 24px;
    max-width: 720px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
}

.header__description {
  display: flex;
  flex-direction: column;
  align-items: center;
}

h1 {
    font-size: 56px;
    color: #7342d6;
    margin-bottom: 24px;
    text-align: center;
}
h2{
    text-align: center;
    margin-bottom: 32px;
    font-size: 32px;
}
button{
    cursor: pointer;
}
button:active{
    transform: translateY(1px);
}
.btn{
    background-color:#7342d6;
    color: white;
    padding: 12px 24px;
    font-size: 20px;
    border-radius: 4px;
    border: none; 
}
.header__img--wrapper{
    padding: 20px;
    z-index: 2;
}

.container{
    padding: 56px 0;
}
.row{
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}
.row__column{
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px;

}
.no-cursor{
    cursor: not-allowed;
}
/* HIGHLIGHTS */

#highlights {
  position: relative;
  max-width: 100vw;
}

#highlights:after,
#highlights:before {
  background: url('assets/wave.svg');
  content: "";
  position: absolute;
  width: 101vw;
  height: 12vw;
  left: 0;
  z-index: 1;
  background-size: cover;
  background-repeat: no-repeat;
}

#highlights:before {
  transform: translateY(-100%);
  top: 1px;
}

#highlights:after {
  transform: translateY(100%) rotate(180deg);
  bottom: 1px;
}

.highlight__wrapper {
  display: flex;
  flex-wrap: wrap;
}

.highlight {
  padding: 0 24px;
  width: calc(100% / 3);
  display: flex;
  align-items: center;
  flex-direction: column;
}

.highlight__para {
  text-align: center;
  max-width: 280px;
}

.highlight__img {
  border: 2px solid #7342d65d;
  color: #7342d6;
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  font-size: 32px;
  margin-bottom: 24px;
}

.highlight__subtitle {
  font-size: 20px;
  margin-bottom: 16px;
  text-align: center;
}

/* FEATURES */

#features {
  padding-top: 8vw;
  background-color: rgba(115, 66, 214, 0.1);
}

.books {
  display: flex;
  flex-wrap: wrap;
}

.book {
  width: 25%;
  padding: 24px;
}

.book__img {
  max-height: 380px;
  transition: all 300ms ease;
  cursor: not-allowed;
}

.book__img--wrapper {
  margin-bottom: 8px;
  border-radius: 4px;
  overflow: hidden;
  display: flex;
}

.book:hover .book__img {
  transform: scale(1.03);
}

.book__title {
  font-size: 20px;
  margin-bottom: 8px;
}

.book__title:hover {
  text-decoration: underline;
  cursor: not-allowed;
}

.book__ratings {
  margin-bottom: 8px;
  color: #fabf2a;
}

.book__price--normal {
  text-decoration: line-through;
  padding-right: 6px;
  color: #bfbfbf;
}

/* EXPLORE */
#explore {
    background-color: rgba(115, 66, 214, 0.1);
}

/* FOOTER */
footer{
    background-color: #242424;
}
.footer__logo{
    display: flex;
}
.footer__logo--img{
    width: 160px;
    filter: grayscale(1) invert(1);
}

.footer__link,
.footer__copyright {
    color:#fff;
}
.footer__list{
    margin: 24px 0 24px 0;
}
.footer__link{
    padding: 0 8px;
}

/* SMALL PHONES, TABLETS, LARGE SMART PHONES */
@media (max-width: 768px) {
    .header__description{
        padding: 0 24px;
    }
    h1 {
        font-size: 40px;
    }
    h2 {
        font-size: 26px;
    }
    button {
        font-size: 18px;
    }
    .book {
        width: 50%;
    }

}

/* SMALL PHONES, LARGE SMART PHONES */
@media (max-width: 550px) {
    .nav__links {
        display: none;
    }
    .btn__menu{
        display: block;
    }
    .highlight {
        width: 100%;     
    }
    .highlight:not(:last-child){
        margin-bottom: 24px;
    }
}