body {
  margin: 0;
  padding: 0;

  font-family: Arial, Helvetica, sans-serif;
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
}

/* header */

.header {
  background-color: azure;
  display: grid;
  grid-auto-flow: column;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  padding: 0.6rem 0;
}

.header p {
  font-size: 2rem;
  font-weight: 600;
}

.header button {
  padding: 0.5rem 1rem;
  border-radius: 1rem;
  background-color: bisque;
  font-size: 1rem;
  border: 0;
  color: black;
  font-weight: bold;
  cursor: pointer;
}

/* content */

.content {
  background-color: coral;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, max-content));
  gap: 1.5rem;
  padding: 2rem;
}

.book-card {
  background-color: azure;
  border-radius: 0.5rem;
  padding: 0.2rem 2rem;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  height: fit-content;
}

/* form */

dialog {
  border: 0;
  border-radius: 1rem;
  padding: 1rem 3rem 3rem 3rem;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.4);
}

#bookForm {
  align-items: center;
  justify-items: end;
  margin-right: 1rem;
}

form label {
  display: block;
  margin-bottom: 0.5rem;
}

form input {
  margin-left: 0.5rem;
}

dialog form button {
  padding: 0.5rem 1rem;
  border: 0;
  border-radius: 1rem;
  cursor: pointer;
  background-color: bisque;
  margin: 0 0.5rem;
}

/* remove and toggle btn */

.remove-btn {
  margin: 1rem 0;
  padding: 0.5rem 0.6rem;
  background-color: #ff6b6b;
  border: none;
  border-radius: 0.4rem;
  color: white;
  cursor: pointer;
  font-weight: bold;
}

.remove-btn:hover {
  background-color: #ff4c4c;
}

.toggle-read-btn {
  margin: 1rem 0;
  padding: 0.5rem 0.6rem;
  background-color: #3498db; /* Blue color */
  border: none;
  border-radius: 0.5rem;
  color: white;
  cursor: pointer;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.toggle-read-btn:hover {
  background-color: #2980b9; /* Darker blue on hover */
}