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

:root {
  --white:#fff;
  --light-grey:#bbb;
  --black:#000;
  --dark-grey:#333;
  --grey:#555;
  --blue:#0018A4;
  --light-blue:#ccffe2;
  --pink: #ff6589;
  --light-pink:#ffecea;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  height: 100vh;
}

.hidden {
  display: none;
}

/* 
************* style for header and nav ***************
*/

/* Header styles */
.header {
  background-color: var(--pink);
  color: var(--white);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Navigation bar */
.nav {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

/* Dropdown and search input styling */
#dropdown, #searchInput {
  padding: 0.5rem 1rem;
  border-radius: 20px;
  border: 2px solid var(--pink);
  background-color: var(--white);
  color: var(--blue);
  font-size: 1rem;
  margin-right: 10px;
  outline: none;
  max-width: 100%;
}

#dropdown:hover, #searchInput:hover {
  background-color: var(--light-pink);
  border-color: var(--blue);
}

#dropdown:focus, #searchInput:focus {
  outline: 2px solid var(--blue);
}

.sort-container {
  position: relative;
}

.sort-toggle {
  background-color: var(--light-pink);
  color: var(--blue);
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 20px;
  cursor: pointer;
  font-size: 1rem;
  display: inline-block;
  text-align: center;
  transition: background-color 0.3s ease;
}

.sort-toggle:hover {
  background-color: var(--pink);
  color: var(--white);
  outline: solid 2px var(--blue);
}

/* Sort menu (hidden by default) */
.sort-menu {
  display: none; /* Hidden initially */
  background-color: var(--light-pink);
  color: var(--blue);
  padding: 10px;
  border-radius: 10px;
  position: absolute;
  top: 50px;
  left: 0;
  z-index: 1;
  width: 200px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: left;
}

.sort-menu.show {
  display: block; /* Show the menu when toggled */
}

/* Style for each label */
.sort-menu label {
  display: block;
  font-size: 1rem; /* Ensure readability */
  line-height: 1.5; /* Adjust line height for better spacing */
  color: var(--blue);
}

.sort-menu label:hover {
  color: var(--pink); /* Add hover effect for better interaction */
}

.sort-menu input {
  margin-right: 10px; /* Add space between radio button and text */
}

/* Hamburger menu styling */
#favourites {
  position: fixed;
  right: 0;
  top: 0;
  background-color: rgba(0, 0, 0, 0.8);
  color: var(--white);
  padding: 20px;
  min-width: 200px;
  height: 100%;
  z-index: 100;
  display: none;
  overflow-y: auto;
}

#favourites.show {
  display: block;  /* Make the favourites menu visible */
}

/* Hamburger menu */
.hamburger-menu {
  cursor: pointer;
  width: 30px;
  height: 30px;
  position: relative;
  z-index: 200; /* Ensure it's always on top of the fav list */
}

.hamburger-menu::before {
  content: "❤️";
  font-size: 1.5rem;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  text-align: center;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: opacity 0.1s ease;
}

/* Hide the heart on hover */
.hamburger-menu:hover::before {
  opacity: 0; /* Hides the heart when hovered */
  transition: opacity 0.1s ease; /* Smooth transition */
}

/* Define the X bars (initially hidden) */
.hamburger-menu .bar1, 
.hamburger-menu .bar2 {
  width: 100%;
  height: 4px;
  background-color: var(--white);
  margin: 6px 0;
  transition: transform 0.3s ease;
  transform-origin: center;
  opacity: 0; /* Hide bars initially */
}

/* Display the X bars when hovered */
.hamburger-menu:hover .bar1, .hamburger-menu:hover .bar2 {
  opacity: 1; /* Show bars */
    transition: opacity 0.3s ease; /* Smooth transition */
}

/* X transformation on hover */
.hamburger-menu:hover .bar1 {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-menu:hover .bar2 {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Responsive adjustments for smaller screens */

@media (max-width: 868px) {
  nav{
    display: flex;
    flex-flow: column wrap;
    justify-content: flex-start;  
    width: 100%;
  }
   
  #resetButton,
  #dropdown,
  #sortContainer,
  #searchInput {
  width: 100%;
  align-self: start;
  }

  /* Ensure the hamburger menu remains in the top corner and is always visible */
  .hamburger-menu {
    position: fixed; /* Keep it fixed so it's always on screen */
    top: 20px;
    right: 20px;
    z-index: 200; /* Maintain a higher z-index */
  }
}

/* Styling the reset button */
.reset-btn {
  background-color: var(--light-pink);
  color: var(--blue);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.3s ease;
}

.reset-btn:hover {
  background-color: var(--pink);
  color: var(--white);
  outline: solid 2px var(--blue);
}

/* 
************* style for book card ***************
*/
#container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: var(--white);
  padding: 1rem;
  padding-bottom: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.card:hover {
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  transform: translateY(-5px);
  outline: solid 2px var(--blue) ;
}

.card img {
  width: 100%;
  height: auto;
  max-height: 180px;
  object-fit: cover;
  border-radius: 4px;
}

.card h2 {
  margin-top: 1rem;
  font-size: 1.25rem;
  color: #2c3e50;
  text-align: center;
  height: 3rem; /* Fixed height to align all titles */
  line-height: 1.5rem;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2; /* Limit to 2 lines */
  -webkit-box-orient: vertical;
  white-space: normal; /* Allow wrapping */
}

/*Add a Grey Line inbetween*/
.card hr {
  width: 40%;
  border: 0;
  border-top: 1px solid var(--grey);
  margin-bottom: 20px;
}

.card p {
  font-size: 1rem;
  color: var(--dark-grey);
  margin: 1px;
}

.card p b {
  color: var(--blue);
  text-align: left;
}

.card button {
  background-color: var(--blue);
  color: var(--white);
  border: none;
  border-radius: 8px;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  cursor: pointer;
  margin-top: 1rem;
  transition: background-color 0.3s ease;
}

.card button:hover {
  background-color: var(--light-blue);
  color: var(--blue);
}

.card button:focus {
  outline: solid 2px var(--blue);
}

/* 
**************** footer style ***********************
*/

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 16px;
}

.social-media {
  display: flex;
  padding: 10px;
}

.social-media a {
  margin-left: 10px;
}

.social-media img {
  max-width: 20px;
}

.logo img {
  max-width: 50px;
  padding-left: 15px;
}

.footer-bottom {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: #bbb;
}

@media (max-width: 600px) {
  footer {
    display: flex;
    flex-flow: column wrap;
    justify-content: center;  
    align-items: center;
  }
}

@media (min-width: 1025px) {
  footer {
    padding: 20px 0;
  }
}