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

body,
input,
button {
  font-family: "Open Sans", sans-serif;
}

input,
button {
  font-size: 16px;
}

header {
  display: inline;
}

nav {
  color: white;
  padding: 5px;
  background-color: rgba(16, 50, 85, 0.9);
  position: sticky;
  top: 0;
  box-shadow: 0px 4px 6px rgba(0, 0, 0, 0.1);
}

.mobile-menu {
  display: none;
}

.menu-icon {
  cursor: pointer;
  padding: 10px;
}

.bar {
  width: 25px;
  height: 3px;
  background-color: white;
  margin: 4px 0;
  transition: 0.4s;
}

.nav-active .bar:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.nav-active .bar:nth-child(2) {
  opacity: 0;
}

.nav-active .bar:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

nav ul {
  padding-inline: 3rem;
  display: flex;
  gap: 3rem;
  justify-content: space-between;
  align-items: center;
}

nav li {
  list-style-type: none;
}

nav .nav_logos {
  display: flex;
  gap: 2rem;
}

nav a {
  transition: all 0.2s ease-in-out, opacity 0.2s ease-in-out;
}

nav a:hover {
  transform: scale(1.2);
  opacity: 0.8;
}

nav img {
  width: 32px;
}

main {
  max-width: 1200px;
  width: 90%;
  margin: 0 auto;
  padding: 16px;
}

.input_container {
  display: flex;
  gap: 1rem;
}

.input_section {
  display: flex;
  flex-basis: 59%;
  flex-direction: column;
  padding: 16px;
  background-color: #103255;
  border: 0.5px solid #a7ccf7;
  border-radius: 10px;
}

.input_section > h2 {
  text-align: center;
  color: white;
}

.input_section > form > .input {
  margin: 8px 0;
}

.input_section > form > button {
  background-color: #6096ba;
  color: white;
  border: 0;
  border-radius: 5px;
  display: block;
  width: 100%;
  padding: 8px;
  cursor: pointer;
}

.input_section > form > .input > input {
  display: block;
  width: 100%;
  padding: 8px;
  border: 0.8px solid #a3cef1;
  border-radius: 5px;
  overflow: hidden;
}

.input_section > form > .input > input:hover {
  background-color: rgb(245, 241, 241);
}

.input_section > form > .input > input:not([type="checkbox"]):focus {
  outline: 2px solid #83b9f7;
}

.input input[type="checkbox"] {
  height: 24px;
}

.input_section > form > .input > label {
  color: white;
  font-weight: bold;
}

.recomendation_section {
  background-color: #103255;
  border: 0.5px solid #a7ccf7;
  border-radius: 0.5rem;
  flex-basis: 40%;
  padding: 1rem;
  color: #103255;

  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.recomendation_section > h2 {
  color: white;
  text-align: center;
}

.recomendation_book {
  background-color: #e7ecef;
  padding: 0.2rem 1rem;
  border: 0.5px solid rgb(24, 54, 110);
  border-radius: 0.5rem;
}

.books_container {
  display: flex;
  gap: 1rem;
}

.shelf_container {
  flex-basis: 59%;
}

aside {
  flex-basis: 40%;
}

.book_shelf {
  margin: 16px 0 0 0;
  background-color: #103255;
  border: 0.5px solid #a7ccf7;
  padding: 16px;
  border-radius: 10px;
}

.book_shelf > h2 {
  text-align: center;
  color: white;
}

.book_shelf > .book_list {
  padding: 16px;
}

.book_shelf > .book_list > .book_item {
  background-color: #e7ecef;
  padding: 8px 16px 16px 16px;
  border: 0.5px solid #a7ccf7;
  border-radius: 0.5rem;
  margin: 10px 0;
  color: #103255;
}

.book_shelf > .book_list > .book_item > h3,
p {
  margin: 8px 0;
}

.book_shelf > .book_list > .book_item > .action > button {
  border: none;
}

.book_shelf > .book_list > .book_item > .action > button > img {
  border: 0;
  padding: 5px;
  margin: 0 5px 0 0;
  border-radius: 5px;
  cursor: pointer;
  width: 3.5rem;
}

.book_shelf > .book_list > .book_item > .action > .green {
  background-color: darkgreen;
  color: white;
}

.book_shelf > .book_list > .book_item > .action > .red {
  background-color: darkred;
  color: white;
}

.search_section {
  margin: 16px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  background-color: #103255;
  border: 0.5px solid #a7ccf7;
  border-radius: 10px;
  width: 100%;
}

.search_section > h2 {
  color: white;
}

.search_section > form {
  padding: 16px;
  width: 100%;
  display: flex;
  gap: 0.7rem;
}

.search_section > form > label {
  display: flex;
  align-items: center;
  font-weight: bold;
  color: white;
}

.search_section > form > input {
  padding: 5px;
  border-radius: 5px;
  border: 0.5px solid #a3cef1;
  width: 100%;
}

.search_section > form > input:hover {
  background-color: rgb(245, 241, 241);
}

.search_section > form > input:focus {
  outline: 2px solid #83b9f7;
}

.search_section > form > button {
  padding: 4px 8px;
  border-radius: 4px;
  border: none;
  color: #103255;
}

footer {
  background-color: #103255;
  color: white;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
}

.footer-left {
  width: 50%;
}

.footer-left h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 10px;
}

.footer-left p {
  font-size: 16px;
  font-weight: 300;
  margin-bottom: 20px;
}

.cta-button {
  background-color: #6096ba;
  color: #ffffff;
  border: none;
  border-radius: 5px;
  padding: 10px 20px;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.cta-button:hover {
  transform: scale(1.1);
  color: #a8a7a7;
}

.footer-right {
  width: 50%;
}

.footer-menu {
  display: flex;
  justify-content: flex-end;
  list-style: none;
}

.footer-menu li {
  margin-left: 20px;
}

.footer-social img {
  width: 30px;
}

.footer-menu a {
  color: white;
  text-decoration: none;
}

.footer-social {
  display: flex;
  justify-content: flex-end;
  list-style: none;
}

.footer-social li {
  margin-left: 10px;
  margin-top: 5px;
  transition: all 0.2s ease-in-out;
}

.footer-social li:hover {
  transform: scale(1.2);
}

.sub-footer {
  text-align: center;
  padding: 10px;
}

.sub-footer p {
  font-size: 14px;
  font-weight: 300;
}

.modal {
  display: none;
  position: fixed;
  z-index: 1;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
}

.modal-content {
  background-color: #e7ecef;
  margin: 10% auto;
  padding: 20px;
  border: 1px solid #888;
  width: 60%;
  box-shadow: 0px 4px 8px 0px rgba(0, 0, 0, 0.2);
  border-radius: 5px;
  position: relative;
  max-width: 700px;
}

.modal-content h2 {
  color: #103255;
}

.modal-content > form > .edit {
  margin: 8px 0;
}

.modal-content > form > .edit > label {
  color: #103255;
  font-weight: bold;
}

.modal-content > form > .edit > input {
  display: block;
  width: 100%;
  padding: 8px;
  border: 0.8px solid #a3cef1;
  border-radius: 5px;
  overflow: hidden;
}

.modal-content > form > .edit > input:hover {
  background-color: rgb(245, 241, 241);
}

.modal-content > form > .edit > input:focus {
  outline: 2px solid #83b9f7;
}

.close {
  color: #aaa;
  float: right;
  font-size: 28px;
  font-weight: bold;
}

.close:hover,
.close:focus {
  color: black;
  text-decoration: none;
  cursor: pointer;
}

#deleteBookModal p {
  color: #103255;
}

#saveEdit {
  margin-top: 10px;
  width: 4.5rem;
  padding: 10px;
  background-color: #2f8ac7;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

#cancelEdit {
  margin-top: 10px;
  padding: 10px;
  width: 4.5rem;
  background-color: rgb(244, 8, 8);
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

#cancelEdit:hover {
  background-color: rgb(196, 27, 27);
}

#saveEdit:hover {
  background-color: #103255;
}

#confirmDelete {
  margin-top: 10px;
  width: 4.5rem;
  padding: 10px;
  background-color: #2f8ac7;
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

#cancelDelete {
  margin-top: 10px;
  padding: 10px;
  width: 4.5rem;
  background-color: rgb(244, 8, 8);
  color: white;
  border: none;
  border-radius: 5px;
  cursor: pointer;
}

#confirmDelete:hover {
  background-color: #103255;
}

#cancelDelete:hover {
  background-color: rgb(196, 27, 27);
}

@media (max-width: 767px) {
  nav ul {
    display: none;
  }

  .mobile-menu {
    display: block;
  }

  .nav-active ul {
    display: flex;
    flex-direction: column;
    background-color: rgba(16, 50, 85, 0.9);
    position: absolute;
    top: 60px;
    right: 0;
    left: 0;
    z-index: 1;
  }

  .nav-active li {
    text-align: center;
    padding: 10px;
  }

  .nav-active .menu-icon .bar {
    background-color: #6096ba;
  }

  .input_container {
    flex-direction: column;
  }

  .input_section,
  .recomendation_section {
    flex-basis: 100%;
  }

  .input_section > form > button {
    width: auto;
  }

  .shelf_container,
  aside {
    flex-basis: 100%;
  }

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

  .footer-container {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-left,
  .footer-right {
    width: 100%;
  }

  .footer-left h3,
  .footer-left p {
    text-align: left;
  }

  .footer-menu {
    justify-content: flex-start;
    margin-top: 10px;
  }

  .footer-menu li {
    margin-left: 0;
    margin-right: 20px;
  }

  .footer-social {
    justify-content: flex-start;
    margin-top: 10px;
  }

  .footer-social li {
    margin-left: 0;
    margin-right: 10px;
  }

  .sub-footer {
    text-align: left;
  }
}