/* Modern Library Management System Styles */
:root {
  /* Color Palette */
  --primary: #4361ee;
  --primary-dark: #3a56d4;
  --secondary: #2ec4b6;
  --accent: #ff9f1c;
  --danger: #e63946;
  --warning: #ffbe0b;
  --success: #06d6a0;
  --light: #f8f9fa;
  --dark: #212529;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;

  /* Typography */
  --font-family-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell,
    "Open Sans", "Helvetica Neue", sans-serif;
  --font-family-serif: "Merriweather", Georgia, "Times New Roman", serif;
  --font-family-mono: "JetBrains Mono", SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New",
    monospace;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-xxl: 3rem;

  /* Border Radius */
  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;
}

/* Base Styles */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--gray-100);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* Layout */
header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: var(--spacing-lg) var(--spacing-md);
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 10;
}

header h1 {
  margin: 0;
  color: white;
  font-weight: 800;
  letter-spacing: -0.5px;
}

main {
  flex: 1;
  padding: var(--spacing-xl);
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  box-sizing: border-box;
}

footer {
  background-color: var(--gray-800);
  color: var(--gray-300);
  padding: var(--spacing-lg);
  text-align: center;
  margin-top: auto;
}

/* Navigation */
.main-menu {
  display: flex;
  list-style: none;
  margin: var(--spacing-md) 0 0 0;
  padding: 0;
  width: 100%;
  flex-wrap: wrap;
}

.main-menu > li {
  position: relative;
  margin-right: var(--spacing-lg);
}

.main-menu > li.nav-item {
  display: flex;
  align-items: center;
}

.main-menu > li > a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-weight: 500;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
}

.main-menu > li > a:hover {
  color: white;
  background-color: rgba(255, 255, 255, 0.1);
}

.main-menu > li.flex-grow {
  flex-grow: 1;
  margin-right: 0;
}

/* Menu Caret Icon - Specific styling for dropdown indicators */
.menu-caret {
  margin-left: 5px;
  font-size: 0.8em;
  display: inline-block !important;
  vertical-align: middle;
}

/* Dropdown Menu */
.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: white;
  min-width: 200px;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  list-style: none;
  padding: var(--spacing-sm) 0;
  border-radius: var(--border-radius-md);
  margin-top: var(--spacing-xs);
  border: 1px solid var(--gray-200);
}

.dropdown-menu li {
  padding: 0;
}

.dropdown-menu a {
  color: var(--gray-800);
  text-decoration: none;
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
  background-color: var(--gray-100);
  color: var(--primary);
}

.dropdown:hover .dropdown-menu {
  display: block;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* User Info */
.user-info {
  margin-left: 0;
  display: flex;
  align-items: center;
}

.badge {
  background-color: rgba(255, 255, 255, 0.2);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  margin-left: var(--spacing-sm);
}

/* Cards */
.card {
  background-color: white;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-normal);
  border: 1px solid var(--gray-200);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--gray-100);
  border-bottom: 1px solid var(--gray-200);
}

.card-body {
  padding: var(--spacing-lg);
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 500;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  user-select: none;
  border: 1px solid transparent;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: var(--border-radius-md);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.btn-primary {
  color: white;
  background-color: var(--primary);
  border-color: var(--primary);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.btn-secondary {
  color: white;
  background-color: var(--gray-600);
  border-color: var(--gray-600);
}

.btn-secondary:hover {
  background-color: var(--gray-700);
  border-color: var(--gray-700);
}

.btn-success {
  color: white;
  background-color: var(--success);
  border-color: var(--success);
}

.btn-success:hover {
  background-color: #05b386;
  border-color: #05b386;
}

.btn-danger {
  color: white;
  background-color: var(--danger);
  border-color: var(--danger);
}

.btn-danger:hover {
  background-color: #d32f3a;
  border-color: #d32f3a;
}

.btn-outline-primary {
  color: var(--primary);
  background-color: transparent;
  border-color: var(--primary);
}

.btn-outline-primary:hover {
  color: white;
  background-color: var(--primary);
  border-color: var(--primary);
}

.btn-outline-secondary {
  color: var(--gray-600);
  background-color: transparent;
  border-color: var(--gray-600);
}

.btn-outline-secondary:hover {
  color: white;
  background-color: var(--gray-600);
  border-color: var(--gray-600);
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  border-radius: var(--border-radius-sm);
}

/* Operation Button Groups - Fixed styles for button groups */
.btn-group {
  display: inline-flex;
  vertical-align: middle;
}

.btn-group > .btn {
  position: relative;
  flex: 0 1 auto;
}

/* Ensure buttons in a group are properly connected */
.btn-group > .btn:not(:first-child) {
  margin-left: -1px;
}

/* Add specific hover state for button groups to enhance visual feedback */
.btn-group > .btn:hover {
  z-index: 1;
}

.btn-group > .btn {
  position: relative;
  border: 1px solid;
}

/* Fix for the button group border issue */
.btn-group > .btn:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  /* Remove this line that was causing the border issue */
  /* border-right: none; */
}

.btn-group > .btn:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  margin-left: -1px;
}

/* Specific border colors for different button types */
.btn-group > .btn-outline-primary {
  border-color: var(--primary);
}

.btn-group > .btn-outline-secondary {
  border-color: var(--gray-600);
}

.btn-group > .btn-outline-success {
  border-color: var(--success);
}

.btn-group > .btn-outline-danger {
  border-color: var(--danger);
}

/* Forms */
.form-control {
  display: block;
  width: 100%;
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--gray-700);
  background-color: white;
  background-clip: padding-box;
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius-md);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.form-control:focus {
  color: var(--gray-700);
  background-color: white;
  border-color: var(--primary);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.25);
}

.form-label {
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--gray-700);
}

.form-text {
  margin-top: 0.25rem;
  font-size: 0.875rem;
  color: var(--gray-600);
}

.form-select {
  display: block;
  width: 100%;
  padding: 0.5rem 2.25rem 0.5rem 0.75rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--gray-700);
  background-color: white;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 16px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--border-radius-md);
  appearance: none;
}

.form-select:focus {
  border-color: var(--primary);
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.25);
}

/* Tables */
.table {
  width: 100%;
  margin-bottom: var(--spacing-lg);
  color: var(--gray-800);
  border-collapse: collapse;
}

.table th,
.table td {
  padding: var(--spacing-md);
  vertical-align: top;
  border-top: 1px solid var(--gray-200);
}

.table thead th {
  vertical-align: bottom;
  border-bottom: 2px solid var(--gray-200);
  background-color: var(--gray-100);
  font-weight: 600;
  color: var(--gray-700);
}

.table tbody + tbody {
  border-top: 2px solid var(--gray-200);
}

.table-striped tbody tr:nth-of-type(odd) {
  background-color: rgba(0, 0, 0, 0.02);
}

.table-hover tbody tr:hover {
  background-color: rgba(0, 0, 0, 0.04);
}

/* Operation buttons in tables */
.table .btn-group {
  white-space: nowrap;
}

/* Alerts */
.alert {
  position: relative;
  padding: var(--spacing-md) var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  border: 1px solid transparent;
  border-radius: var(--border-radius-md);
}

.alert-success {
  color: #155724;
  background-color: #d4edda;
  border-color: #c3e6cb;
}

.alert-danger {
  color: #721c24;
  background-color: #f8d7da;
  border-color: #f5c6cb;
}

.alert-warning {
  color: #856404;
  background-color: #fff3cd;
  border-color: #ffeeba;
}

.alert-info {
  color: #0c5460;
  background-color: #d1ecf1;
  border-color: #bee5eb;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25em 0.4em;
  font-size: 75%;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: var(--border-radius-sm);
}

.bg-primary {
  background-color: var(--primary) !important;
}

.bg-secondary {
  background-color: var(--secondary) !important;
}

.bg-success {
  background-color: var(--success) !important;
}

.bg-danger {
  background-color: var(--danger) !important;
}

.bg-warning {
  background-color: var(--warning) !important;
}

.text-dark {
  color: var(--dark) !important;
}

/* Pagination */
.pagination {
  display: flex;
  padding-left: 0;
  list-style: none;
  border-radius: var(--border-radius-md);
}

.page-link {
  position: relative;
  display: block;
  padding: 0.5rem 0.75rem;
  margin-left: -1px;
  line-height: 1.25;
  color: var(--primary);
  background-color: white;
  border: 1px solid var(--gray-300);
}

.page-link:hover {
  z-index: 2;
  color: var(--primary-dark);
  text-decoration: none;
  background-color: var(--gray-200);
  border-color: var(--gray-300);
}

.page-link:focus {
  z-index: 3;
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(67, 97, 238, 0.25);
}

.page-item:first-child .page-link {
  margin-left: 0;
  border-top-left-radius: var(--border-radius-md);
  border-bottom-left-radius: var(--border-radius-md);
}

.page-item:last-child .page-link {
  border-top-right-radius: var(--border-radius-md);
  border-bottom-right-radius: var(--border-radius-md);
}

.page-item.active .page-link {
  z-index: 3;
  color: white;
  background-color: var(--primary);
  border-color: var(--primary);
}

.page-item.disabled .page-link {
  color: var(--gray-500);
  pointer-events: none;
  cursor: auto;
  background-color: white;
  border-color: var(--gray-300);
}

/* Book Grid */
.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.book-item {
  background-color: white;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-md);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.book-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.book-item img {
  max-width: 100%;
  height: auto;
  margin-bottom: var(--spacing-md);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-sm);
}

.book-item h4 {
  margin-bottom: var(--spacing-xs);
  font-size: 1.1rem;
}

.book-item p {
  margin-bottom: var(--spacing-xs);
  color: var(--gray-600);
  font-size: 0.9rem;
}

/* Fix for Font Awesome icons */
.fas,
.far,
.fab,
.fa {
  display: inline-block;
  line-height: 1;
}

/* Ensure Font Awesome icons are properly spaced */
.main-menu i.fas,
.main-menu i.far,
.main-menu i.fab,
.main-menu i.fa {
  margin-right: 5px;
}

/* Language Switcher */
.language-switcher {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
}

.language-dropdown {
  position: relative;
  display: inline-block;
}

.language-toggle {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  font-size: 1.5rem;
}

.language-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
  background-color: var(--secondary);
}

.language-menu {
  position: absolute;
  bottom: 60px;
  right: 0;
  background-color: white;
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-sm) 0;
  min-width: 150px;
  display: none;
  animation: fadeInUp 0.3s ease;
}

.language-menu.show {
  display: block;
}

.language-menu-item {
  display: block;
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--gray-700);
  font-size: 0.9rem;
  transition: background-color var(--transition-normal);
  text-decoration: none;
}

.language-menu-item:hover {
  background-color: var(--gray-100);
  color: var(--primary);
}

.language-menu-item.active {
  background-color: var(--primary);
  color: white;
  font-weight: 600;
}

.language-menu-item i {
  margin-right: var(--spacing-sm);
  width: 20px;
  text-align: center;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* HTMX Indicator Styles */
/* Hide htmx-indicator elements by default to prevent continuous spinner display */
.htmx-indicator {
  opacity: 0;
  transition: opacity 300ms ease-in;
}

/* Show htmx-indicator when HTMX request is active */
.htmx-request .htmx-indicator {
  opacity: 1;
}

/* Also show htmx-indicator when the element itself has htmx-request class */
.htmx-request.htmx-indicator {
  opacity: 1;
}