body {
  margin: 0px;
  font-family: "Roboto", sans-serif;
}

h1,
h2,
h3,
h4,
h5 {
  padding: 0;
  margin: 0;
  font-family: "Montserrat", sans-serif;
  font-weight: bolder;
}

h1 {
  font-size: 2.5rem;
}

#header {
  z-index: 200;
  width: 100vw;
  position: fixed;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-image: linear-gradient(#165f8c, #0b3046);
  padding: 5px 20px;
  color: white;
}

#website-name {
  padding: 10px 0;
  color: #f2bf27;
}

#header .navigation-items {
  display: flex;
  list-style: none;
}

.navigation-items .active {
  color: #f2bf27;
}

#navigation {
  display: flex;
  align-items: center;
}

#navigation ul {
  margin-top: 8px;
}

.navigation-items .navigation-item {
  padding: 5px 10px;
  margin: 0 2px;
  font-family: "Montserrat", sans-serif;
  font-weight: bolder;
  cursor: pointer;
}

.navigation-item:hover {
  color: #f2bf27;
}

#landing-section {
  padding-top: 50px;
  position: relative;
  overflow: hidden;
  min-height: 98vh;
  background-image: linear-gradient(120deg, #165f8c, #0b3046);
  display: flex;
}

.landing-content {
  flex: 1;
  padding: 60px 0px 60px 20px;
  width: 40%;
  font-size: 1.1rem;
  position: relative;
  z-index: 2;

  display: flex;
  flex-direction: column;
  justify-content: center;
}

.landing-content p {
  font-size: 1.3rem;
  padding-top: 30px;
}

.main-title {
  color: #f2bf27;
  font-size: 2.5em;
}

#landing-section p {
  color: white;
}

.glass-morphism {
  position: absolute;
  z-index: 1;
}

.image-content {
  flex: 1;
  z-index: 1;
  display: flex;
  align-items: center;
}

.image-content img {
  min-width: 45vw;
}

button {
  display: inline-block;
  border: none;
  padding: 1rem 2rem;
  margin: 0;
  text-decoration: none;
  font-family: "Roboto", sans-serif;
  font-weight: bolder;
  border-radius: 30px;
  color: #ffffff;
  font-family: sans-serif;
  font-size: 1rem;
  cursor: pointer;
  text-align: center;
  transition: background 250ms ease-in-out, transform 150ms ease;
  -webkit-appearance: none;
  -moz-appearance: none;
}

.buy-button {
  margin-top: 30px;
  background-color: #e8232d;
  margin-bottom: 30px;
  max-width: 180px;
}

.scroll-container {
  animation: MoveUpDown 1s ease-in-out infinite;
  cursor: pointer;
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translate(0, -50%);
  z-index: 2;
}

@keyframes MoveUpDown {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

.scroll-container img {
  width: 70px;
}

.theme-color {
  color: #042539;
}

#about-book-section {
  padding: 50px 20px 50px 20px;
  font-size: 1.2rem;
}

.about-paragraph-container {
  display: flex;
  padding-top: 30px;
}

.about-book-container {
  padding-top: 20px;
}

#book-is-for-section {
  padding: 50px 20px 50px 20px;
  background-color: #042539;
}

.book-for-element {
  display: flex;
  flex-direction: column;
  text-align: center;
}

.book-for-element img {
  padding-top: 20px;
  height: 150px;
  padding-bottom: 30px;
}

.theme-color-2 {
  color: #f2bf27;
}

.theme-color-3 {
  color: #0477bf;
}

.ruler {
  background-color: #f2bf27;
  padding: 2px;
  margin: 30px 80px;
}

.theme-element-content-color {
  color: white;
}

hr {
  background-color: red;
  height: 4px;
  border: 0;
}

#about-author-section {
  padding: 50px 20px;
}

#about-author-section .image-container {
  padding: 50px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

#about-author-section .image-container img {
  width: 300px;
  border: 7px solid #0477bf;
  border-radius: 50%;
  margin-bottom: 30px;
}

.image-container-details {
  display: flex;
  align-items: center;
  flex-direction: column;
}

.image-container-details h5 {
  padding-top: 10px;
  text-align: center;
}

.details-container p {
  padding-top: 20px;
  padding-bottom: 20px;
}

.education {
  display: flex;
  align-items: center;
}

.education p {
  margin: 0;
  padding: 10px;
  margin-left: 10px;
}

.education img {
  width: 40px;
}

.social-button-container {
  padding-top: 30px;
}

.social-button {
  display: inline-block;
  background-color: #042539;
  border-radius: 50%;
  padding: 20px;
  margin: 10px;
  cursor: pointer;
}

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

#download-questions {
  padding-top: 40px;
  padding-bottom: 10px;
}

#download-questions h1 {
  padding-bottom: 20px;
}

#download-questions .description {
  padding-left: 20px;
  padding-right: 20px;
}

#chapters-of-the-book {
  padding-top: 40px;
  padding-bottom: 40px;
}

#chapters-of-the-book .description {
  padding-left: 20px;
  padding-right: 20px;
  padding-bottom: 40px;
}

#chapters-of-the-book .description p {
  padding-top: 30px;
}

.chapter-container {
  display: flex;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
  min-height: 350px;

  color: white;
  padding: 50px 20px;
}

.chapter-description {
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

#image-1 {
  background-image: url("./dependencies/img/image1.jpg");
}

#image-2 {
  background-image: url("./dependencies/img/image2.jpg");
}

#image-3 {
  background-image: url("./dependencies/img/image3.jpg");
}

#image-4 {
  background-image: url("./dependencies/img/image4.jpg");
}

.chapter-heading {
  color: #f2bf27;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100px;
}

.underline {
  background-color: #0477bf;
  margin: 15px;
  height: 4px;
  width: 80px;
}

#footer {
  padding: 50px 20px;
  background-color: #042539;
  color: white;
}

.footer-social-button {
  display: inline-block;
  background-color: #f2bf27;
  border-radius: 50%;
  padding: 20px;
  margin: 30px;
  cursor: pointer;
}

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

.contact-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.contact-info p {
  padding: 30px;
  font-size: 1.3rem;
  font-weight: bold;
}

.contact-info img {
  height: 60px;
}

.contact-container {
  padding-bottom: 50px;
}

.social-media-container {
  display: flex;
  justify-content: center;
}

#buy-book-container {
  padding: 50px 20px;
}

.book-image-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.buy-book-container img {
  width: 80%;
}

.form {
  padding: 30px 0;
}

#frequently-asked-section {
  padding: 50px 20px;
}

.questions-container {
  padding-top: 10px;
}

.questions-container h3 {
  color: #042539;
  padding-bottom: 20px;
}

.qanda {
  padding: 20px 10px;
}

#al-students {
  padding: 50px 0px;
}

#al-students ul {
  text-align: left;
}

#al-students li {
  padding: 10px 0;
}

#al-students p {
  text-align: left;
}

#al-students img {
  width: 150px;
}

.chapter-body {
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
  min-height: 100vh;
  padding: 30px;
}

.container-data {
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.method {
  padding: 10px 0px;
}

.method p {
  padding: 12px 0;
}

.method li {
  padding: 10px 0;
}

@media only screen and (max-width: 1030px) {
  .image-content img {
    opacity: 40%;
    position: absolute;
    top: 50%;
    transform: translate(0, -50%);
    right: 0;
  }

  .landing-content {
    width: 100%;
  }

  #landing-section {
    min-height: 40vh;
  }
}

@media only screen and (max-width: 1000px) {
  #al-students p {
    text-align: left;
  }

  #website-name {
    font-size: 13px;
  }

  .navigation-items .navigation-item {
    font-size: 10px;
    padding: 5px 5px;
    margin: 0 0;
    font-family: "Montserrat", sans-serif;
    font-weight: bolder;
    cursor: pointer;
  }
}