* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
body {
  font-family: "Open Sans", sans-serif;
}

header {
  background-color: #242f9b;
  color: white;
  padding: 20px;
  text-align: center;
}

main {
  background-color: #e8f5ff;
  padding: 5% 5%;
  margin: 0 auto;
}

section {
  background-color: white;
  padding: 5% 10%;
  margin: 5% 0;
  border: 1px solid transparent;
  border-radius: 10px;
  color: #646fd4;
  box-shadow: 0 5px 10px rgba(154, 160, 185, 0.05),
    0 15px 40px rgba(166, 173, 201, 0.2);
}

h2 {
  text-align: center;
}

.input {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
}

.input label {
  font-size: large;
  font-weight: 700;
}

.input input {
  background-color: #dbdffd;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 10px;
}

.input input:hover {
  border: 1px solid #242f9b;
}

.input-inline {
  display: flex;
  align-items: center;
  font-weight: 700;
}

.input-inline label {
  padding: 10px 10px 10px 0;
}

.input-book button {
  font-size: large;
  color: white;
  background-color: #646fd4;
  padding: 20px;
  font-weight: 700;
  width: 100%;
  border: none;
  border-radius: 5px;
}

.card {
  background-color: white;
  border: 1px solid #242f9b;
  padding: 10px;
  margin-top: 10px;
  border-radius: 10px;
  color: #646fd4;
  box-shadow: 0 5px 10px rgba(154, 160, 185, 0.05),
    0 15px 40px rgba(166, 173, 201, 0.2);
}

.search-book input {
  border: 1px solid #242f9b;
  border-radius: 5px;
  margin-right: 10px;
  width: 100%;
  padding: 6px;
}

.search-book input:hover {
  border: 1px solid #242f9b;
}

.search-book button {
  color: white;
  background-color: #646fd4;
  padding: 6px;
  font-weight: 700;
  border: none;
  border-radius: 5px;
}

.action-btn {
  color: white;
  background-color: #646fd4;
  padding: 10px;
  margin-top: 10px;
  font-weight: 700;
  width: 100%;
  border: none;
  border-radius: 5px;
}

.remove-btn {
  color: white;
  background-color: #d46464;
  width: 100%;
  padding: 10px;
  margin-top: 10px;
  font-weight: 700;
  border: none;
  border-radius: 5px;
}

.action {
  display: flex;
}

.dialog {
  display: none;
  position: absolute;
  background-color: white;
  text-align: center;
  border: 1px solid #d46464;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  padding: 15px;
  margin: auto;
  height: max-content;
  z-index: 10;
}

.dialog h2 {
  color: #d46464;
}

@media (min-width: 800px) {
  main {
    padding: 5% 10%;
  }
  section {
    padding: 5% 15%;
  }
  article {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .action {
    flex-direction: column;
  }
  .dialog div {
    display: flex;
    flex-direction: row;
  }
}