@font-face {
  font-family: balsamiq;
  src: url(fonts/BalsamiqSans-Regular.ttf);
  font-weight: bold;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
  font-family: balsamiq, sans-serif;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

li {
  list-style: none;
}

.flex-row {
  display: flex;
}

.flex-column {
  display: flex;
  flex-direction: column;
}

.border-black {
  border: 2.5px solid black;
}

.center {
  margin: 0 auto;
}

header {
  top: 0.2rem;
  left: 2.5vw;
  right: 2.5vw;
  position: fixed;
}

.header-hero,
footer {
  justify-content: space-between;
  width: 95vw;
  padding: 0.5rem;
}

.nav {
  gap: 0.5rem;
  cursor: pointer;
}

.header-list {
  color: blue;
}

li + li {
  border-left: 2px solid blue;
  padding-left: 0.5rem;
}

.date {
  width: max-content;
  margin-left: auto;
  margin-top: 0.2rem;
  font-size: 1.7vw;
}

main {
  margin-top: 7rem;
}

.library-booklist__heading {
  margin: 1rem 0 2rem 0;
  text-align: center;
}

.library-booklist__books {
  width: 90vw;
}

.library-book {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  padding: 0.3rem;
  padding-right: 1rem;
}

.library-book__title,
.library-book__author {
  text-transform: capitalize;
}

form button {
  float: right;
}

.library-book .library-btn__rmv,
form button {
  padding: 0.1rem 0.3rem;
  box-shadow: 3px 3px 3px black;
}

.library-book button {
  margin-left: auto;
}

form {
  width: 50vw;
  margin: 0 auto;
  margin-top: 8rem;
  position: absolute;
  visibility: hidden;
}

form > * {
  margin-top: 1rem;
}

form input {
  width: 100%;
  padding: 0.5rem;
}

form h2 {
  text-align: center;
}

form h2 span {
  border-top: 2px solid black;
  padding-top: 1rem;
}

.errMsg {
  color: red;
}

.contact-information {
  position: absolute;
  visibility: hidden;
  width: 90vw;
  margin-top: 10rem;
  text-align: center;
}

footer {
  position: fixed;
  bottom: 0.2rem;
  left: 2.5vw;
  right: 2.5vw;
}

.show {
  position: static;
  visibility: visible;
}

.hide {
  position: absolute;
  visibility: hidden;
}