@import url("https://fonts.googleapis.com/css2?family=Italiana&display=swap");

/* --- CSS Variables --- */
:root {
  /* Light Mode Variables */
  --bg-primary: #f8f7f3;
  --bg-secondary: #f4f1e8;
  --bg-input: #ffffff;
  --bg-popup: #ffffff;
  --bg-card: #fbcfe8;
  --bg-icon-hover: #dee8fc;

  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --text-tertiary: #9ca3af;
  --text-accent: #ef4444;
  --text-inverted: #ffffff;
  --text-summary: #000000;

  --btn-primary-bg: #1f2937;
  --btn-primary-text: #ffffff;
  --btn-primary-hover-bg: #dc2626;

  --border-default: #e5e7eb;
  --border-light: #f3f4f6;
  --border-focus: #fca5a5;
  --border-hover: #afafaf;

  --shadow-card: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-sidebar: 0 4px 6px rgba(0, 0, 0, 0.2);
  --shadow-popup: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Dark Mode Variables */
body.dark-mode {
  --bg-primary: #1f2937;
  --bg-secondary: #111827;
  --bg-input: #374151;
  --bg-popup: #2d3748;
  --bg-card: #4a5568;
  --bg-icon-hover: #4a5568;

  --text-primary: #f8f7f3;
  --text-secondary: #9ca3af;
  --text-tertiary: #d1d5db;
  --text-accent: #f87171;
  --text-inverted: #1f2937;
  --text-summary: #e5e7eb;

  --btn-primary-bg: #f8f7f3;
  --btn-primary-text: #1f2937;
  --btn-primary-hover-bg: #f87171;

  --border-default: #4a5568;
  --border-light: #2d3748;
  --border-focus: #f87171;
  --border-hover: #718096;

  --shadow-card: 0 10px 15px rgba(0, 0, 0, 0.3);
  --shadow-sidebar: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-popup: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Base styles for body and overall layout */
body {
  font-family: "Italiana";
  background-color: var(--bg-primary);
  display: flex;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  color: var(--text-primary);
  transition: background-color 0.3s ease;
}

/* Custom scrollbar for main content if needed */
.main-content-scroll {
  overflow-y: auto;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.main-content-scroll::-webkit-scrollbar {
  display: none;
}

/* Sidebar styles */
.sidebar {
  width: 60px;
  background-color: var(--bg-secondary);
  box-shadow: var(--shadow-sidebar);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 1.5rem;
  padding-top: 20px;
  transition: width 0.3s ease;
}

.sidebar-icon-container {
  width: 40px;
  height: 40px;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}

.sidebar-icon {
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.5rem;
  padding: 0.5rem;
  border-radius: 9999px;
  transition: background-color 0.3s ease, color 0.3s ease;
  display: flex;
  align-items: center;
}

.sidebar-icon .active {
  color: var(--text-accent);
}

.sidebar-icon:hover {
  color: var(--text-accent);
  background-color: var(--bg-icon-hover);
}

.sidebar-text {
  display: none;
  margin-left: 1rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
}

.sidebar.expanded {
  width: 220px;
  align-items: flex-start;
  padding-left: 10px;
  padding-right: 10px;
}

.sidebar.expanded .sidebar-icon-container,
.sidebar.expanded .sidebar-icon {
  width: 100%;
  justify-content: flex-start;
  border-radius: 0.5rem;
  padding: 0.75rem;
}

.sidebar.expanded .sidebar-text {
  display: inline;
}

[data-tooltip] {
  position: relative;
}

.sidebar.expanded [data-tooltip]::after {
  display: none;
}

[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 65px;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--text-primary);
  color: var(--text-inverted);
  padding: 0.4rem 0.8rem;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  font-family: "Inter", sans-serif;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease-in-out;
  pointer-events: none;
  z-index: 100;
}

.sidebar:not(.expanded) [data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Floating Dock Styles (hidden on desktop, shown on mobile) */
.floating-dock {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  background-color: var(--bg-secondary);
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  box-shadow: var(--shadow-card);
  z-index: 1000;
  display: none; /* Hidden by default, shown on mobile */
}

.dock-icon {
  color: var(--text-secondary);
  font-size: 1.5rem;
  padding: 0.5rem;
  border-radius: 50%;
  transition: color 0.3s ease, background-color 0.3s ease;
  text-decoration: none;
}

.dock-icon.active {
  color: var(--text-accent);
}

.dock-icon:hover {
  color: var(--text-accent);
  background-color: var(--bg-icon-hover);
}

.dock-icon::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--text-primary);
  color: var(--text-inverted);
  padding: 0.3rem 0.6rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-family: "Inter", sans-serif;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease-in-out;
  pointer-events: none;
  z-index: 1001;
}

.dock-icon:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Main content area */
.main-content-area {
  flex: 1;
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

@media (min-width: 768px) {
  .main-content-area {
    padding: 3rem;
  }
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 30px;
  margin-bottom: 3rem;
}

.logo {
  font-size: 2.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.search-bar-container {
  position: relative;
  flex-grow: 1;
  margin-left: 2rem;
  margin-right: 2rem;
  max-width: 56rem;
}

.search-input {
  width: 100%;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
  padding-left: 3rem;
  padding-right: 1rem;
  border-radius: 9999px;
  background-color: var(--bg-input);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  outline: none;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  color: var(--text-primary);
  box-sizing: border-box;
}

.search-input::placeholder {
  color: var(--text-tertiary);
}

.search-input:focus {
  border-color: var(--border-focus);
}

.search-icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-tertiary);
}

.profile-notifications {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  position: relative;
}

.profile-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.profile-photo {
  width: 40px;
  height: 40px;
  border-radius: 9999px;
  border: 2px solid var(--border-default);
}

.logged-in-user-name {
  color: var(--text-primary);
  font-weight: 500;
  display: none;
}

@media (min-width: 640px) {
  .logged-in-user-name {
    display: block;
  }
}

.theme-toggle-icon {
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.25rem;
  transition: color 0.3s ease;
}

.theme-toggle-icon:hover {
  color: var(--text-accent);
}

.notification-icon {
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1.25rem;
  transition: color 0.3s ease;
}

.notification-icon:hover {
  color: var(--text-accent);
}

.notification-popup {
  position: absolute;
  top: 120%;
  right: 0;
  width: 320px;
  background-color: var(--bg-popup);
  border-radius: 0.5rem;
  box-shadow: var(--shadow-popup);
  z-index: 50;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.notification-popup.hidden {
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
}

.popup-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-light);
}

.popup-header h3 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.close-btn {
  background: none;
  border: none;
  font-size: 1.9rem;
  line-height: 1;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0;
}

.close-btn:hover {
  color: var(--text-secondary);
}

.popup-content ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.popup-content li {
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 600;
  border-bottom: 1px solid var(--border-light);
}

.popup-content li:last-child {
  border-bottom: none;
}

.popup-content li:hover {
  background-color: var(--border-light);
}

.bookinfo {
  margin-right: 100px;
  width: 600px;
}

.author {
  display: flex;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.author-image {
  width: 60px;
  height: 60px;
  border-radius: 9999px;
  border: 2px solid var(--border-default);
  margin-right: 0.5rem;
}

.author-name {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  margin-left: 10px;
}

.summary-text {
  color: var(--text-summary);
  font-weight: 700;
  font-style: italic;
  font-size: 1.125rem;
  line-height: 1.75;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  margin-left: 10px;
}

.bookmarks-section {
  display: flex;
  align-items: center;
  position: relative;
  min-height: 400px;
}

.book-display-area {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 3rem;
  align-items: center;
  text-align: center;
}

.navigation-controls {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.navigation-controls .btns {
  display: flex;
  padding: 0 1rem;
}

.nav-arrow-btn {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background-color: var(--bg-input);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 1.25rem;
  transition: background-color 0.3s ease;
  border: none;
  cursor: pointer;
  margin-left: 15px;
}

.nav-arrow-btn:hover {
  border: 1px solid var(--border-hover);
}

.book-card {
  width: 300px;
  height: 450px;
  background-color: var(--bg-card);
  border-radius: 1rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(1);
  transition: transform 0.3s ease;
  cursor: pointer;
}

.book-card:hover {
  transform: scale(1.05);
}

.book-card-content {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 1.5rem;
  font-weight: 600;
}

.book-card-content img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 1rem;
  transition: transform 0.3s ease;
}

.book-details {
  text-align: center;
  margin-top: 1.5rem;
}

.book-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.book-info {
  color: var(--text-summary);
  font-size: 1rem;
  font-weight: 800;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .sidebar {
    width: 50px;
  }

  .sidebar-icon-container,
  .sidebar-icon {
    width: 35px;
    height: 35px;
    font-size: 1.3rem;
  }

  .sidebar.expanded {
    width: 200px;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
    margin-bottom: 2rem;
  }

  .logo {
    margin-bottom: 1rem;
  }

  .search-bar-container {
    margin: 0 0 1rem 0;
    width: 100%;
  }

  .profile-notifications {
    width: 100%;
    justify-content: space-between;
  }

  .bookinfo {
    margin-right: 0;
    width: 100%;
  }
}

@media (max-width: 768px) {
  .sidebar {
    display: none; /* Hide sidebar on mobile */
  }

  .floating-dock {
    display: flex; /* Show dock on mobile */
  }

  .main-content-area {
    padding: 1.5rem;
  }

  .header {
    margin-top: 20px;
    flex-direction: row;
    align-items: center;
  }

  .logo {
    font-size: 2rem;
  }

  .search-input {
    padding: 0.5rem 2.5rem 0.5rem 2rem;
  }

  .search-icon {
    left: 0.75rem;
  }

  .profile-notifications {
    gap: 1rem;
  }

  .profile-photo {
    width: 35px;
    height: 35px;
  }

  .main-story-section {
    flex-direction: column;
    margin-bottom: 2rem;
  }

  .bookinfo {
    margin-top: 1.5rem;
  }

  .navigation-controls .btns {
    padding: 0 0.5rem;
  }

  .nav-arrow-btn {
    width: 50px;
    height: 50px;
    font-size: 1.1rem;
    margin-left: 10px;
  }

  .book-card {
    width: 150px;
    height: 225px;
  }

  .book-title {
    font-size: 1.2rem;
  }

  .book-info {
    font-size: 0.9rem;
  }

  .profile-notifications {
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
  }

  .theme-toggle-icon,
  .notification-icon {
    margin-left: 0.5rem;
  }
}

@media (max-width: 480px) {
  .header {
    display: flex;
  }

  .floating-dock {
    width: 70%;
    gap: 2.3rem;
    padding: 0.6rem 0.6rem;
  }

  .dock-icon {
    font-size: 1.2rem;
    padding: 0.3rem;
  }

  .main-content-area {
    padding: 1rem;
  }

  .logo {
    margin-top: 10px;
    font-size: 1.7rem;
  }

  .search-bar-container {
    margin: 0;
    width: 100%;
  }

  .profile-notifications {
    /* margin-right: 10px; */
    width: 150px;
  }

  .main-story-section {
    flex-direction: column;
    margin-top: -2em;
    margin-bottom: -1rem;
  }

  .book-card {
    width: 120px;
    height: 180px;
  }

  .book-title {
    font-size: 1rem;
  }

  .book-info {
    font-size: 0.8rem;
  }

  .author-image {
    width: 50px;
    height: 50px;
  }

  .author-name {
    font-size: 1rem;
  }

  .summary-text {
    font-size: 0.9rem;
  }

  .section-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
  }

  .navigation-controls .btns {
    padding: 0 0.5rem;
  }

  .nav-arrow-btn {
    width: 40px;
    height: 40px;
    font-size: 1rem;
    margin-left: 10px;
  }

  .bookmarks-section {
    flex-direction: column;
    align-items: left;
    margin-bottom: 200px;
  }
  .book-display-area {
    padding: 0;
    width: 100%;
    gap: 0.5rem;
    align-items: center;
    justify-content: center;
  }
  .book-card {
    width: 200px;
    height: 300px;
    /* gap: 1rem; */
  }

  .book-card:hover {
    transform: scale(1.05);
  }
}