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

body {
  font-size: 16px;
  font-family: 'Lato', sans-serif;
}

main {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.book-container {
  align-items: center;
  width: 95%;
  text-align: center;
}

h1 {
  margin: 0.5em 0;
}

hr {
  width: 15%;
  margin: auto;
  border: solid 2px rgb(0, 0, 0);
  border-radius: 4px;
  margin-top: 3em;
}

.book-title {
  font-size: 35px;
  font-weight: 400;
}

.div {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 2rem;
}

button {
  font-family: 'Lato', sans-serif;
  border: none;
  cursor: pointer;
  height: 1.5rem;
  width: 4rem;
  border-radius: 4px;
  box-shadow: rgba(119, 117, 117, 0.66) 0 1px 4px;
  background-color: #fff;
}

.book-stack {
  font-family: 'Lato', sans-serif;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5em;
}

.book-stack:nth-child(even) {
  background-color: rgb(225, 225, 225);
}

.display-section {
  border: 3px solid black;
  margin: auto;
  max-height: 55vh;
  overflow-x: hidden;
  overflow-y: scroll;
}

.title-input {
  height: 2rem;
  padding: 5px;
  font-family: 'Lato', sans-serif;
  border-radius: 4px;
  font-size: 1rem;
  box-shadow: rgba(0, 0, 0, 0.16) 0 1px 4px;
  border: solid 1px rgb(0, 0, 0);
}

.author-input {
  height: 2rem;
  padding: 5px;
  font-family: 'Lato', sans-serif;
  border-radius: 4px;
  font-size: 1rem;
  box-shadow: rgba(0, 0, 0, 0.16) 0 1px 4px;
  border: solid 1px rgb(0, 0, 0);
}

.add-button {
  border: none;
  height: 2rem;
  width: 4.5rem;
  font-family: 'Lato', sans-serif;
  border-radius: 4px;
  box-shadow: rgba(0, 0, 0, 0.66) 0 1px 4px;
  cursor: pointer;
  align-self: end;
}

.add-button:hover,
button:hover {
  background-color: rgb(209, 200, 190);
}

#inputs {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  row-gap: 1rem;
  align-items: center;
  justify-content: center;
}

/* navbar */
.navbar {
  width: 100%;
  display: flex;
  justify-content: space-between;
  background-color: whitesmoke;
}

.title-navbar {
  width: 50%;
  margin: 0 1%;
  padding: 1%;
}

.nav-list {
  width: 50%;
  display: flex;
  list-style-type: none;
  margin: 0 1%;
  padding: 1%;
  justify-content: flex-end;
  background-color: whitesmoke;
}

.nav-item {
  margin: 1%;
}

.contact-info {
  margin: 1% auto;
}

.contact-info h1 {
  text-align: center;
  margin: 5% auto;
}

.displayed-section {
  width: 100vw;
  min-height: 10vh;
  margin-top: 0;
}

/* Footer section */

.footer-section {
  border: 1.5px solid black;
  border-radius: 0.5rem;
  box-shadow: rgba(0, 0, 0, 0.3) 0 2px 4px;
  width: 95%;
  bottom: 0;
  margin: 0 auto 1rem auto;
  text-align: center;
  position: absolute;
  left: 2.5%;
}

.footer-text {
  padding: 1rem;
  position: relative;
  margin-right: 20px;
}

/* Contact section */

.contact-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 4rem;
}

.contact-title {
  font-size: 2rem;
  font-weight: 400;
  align-self: center;
  text-decoration: underline;
}

.contact-text {
  margin-bottom: 0;
}

.contact-text2 {
  margin-top: 5px;
  position: relative;
  align-self: center;
}

.contact-details li {
  padding-bottom: 1rem;
  margin-left: 10rem;
  right: 22rem;
}

.hide {
  display: none;
}

#dateC {
  align-self: flex-end;
  margin: 0 2.5rem;
  padding: 0.5rem;
}