/* ========== Mobile-Native UI Styles ========== */

/* Mobile container - only visible on mobile */
#mobile-container {
  display: none;
}

@media (max-width: 768px) {
  /* Hide desktop UI on mobile, except login page */
  #app:not(:has(.login-page)) {
    display: none !important;
  }
  
  /* Show mobile UI */
  #mobile-container {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    overflow: hidden;
  }
  
  /* Hide mobile UI when login page is shown */
  #app:has(.login-page) ~ #mobile-container {
    display: none !important;
  }
}

/* Mobile screen container */
.mobile-screen {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background: var(--bg);
}

/* Mobile header */
.mobile-header {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  min-height: 56px;
  flex-shrink: 0;
}

.mobile-header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.mobile-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text);
}

.mobile-logo svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.mobile-header-title {
  flex: 1;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  margin: 0 0.5rem;
}

.mobile-back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: var(--primary);
  cursor: pointer;
  border-radius: var(--radius);
  flex-shrink: 0;
}

.mobile-back-btn:active {
  background: var(--bg-tertiary);
}

.mobile-back-btn svg {
  width: 24px;
  height: 24px;
}

.mobile-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius);
  flex-shrink: 0;
}

.mobile-icon-btn:active {
  background: var(--bg-tertiary);
}

.mobile-icon-btn svg {
  width: 20px;
  height: 20px;
}

/* Theme toggle icons */
[data-theme="dark"] .mobile-icon-btn .icon-sun {
  display: none;
}

[data-theme="dark"] .mobile-icon-btn .icon-moon {
  display: block;
}

[data-theme="light"] .mobile-icon-btn .icon-sun {
  display: block;
}

[data-theme="light"] .mobile-icon-btn .icon-moon {
  display: none;
}

.mobile-library-info {
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
}

.mobile-library-name {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Mobile content area */
.mobile-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

/* Mobile search box */
.mobile-search-box {
  position: relative;
  padding: 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.mobile-search-box svg {
  position: absolute;
  left: 1.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  pointer-events: none;
}

.mobile-search-box input {
  width: 100%;
  padding: 0.75rem 0.75rem 0.75rem 2.75rem;
  font-size: 1rem;
  background: var(--bg-tertiary);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.mobile-search-box input:focus {
  outline: none;
  border-color: var(--primary);
}

/* Mobile menu */
.mobile-menu {
  padding: 0.5rem;
}

.mobile-menu-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
  padding: 1rem;
  margin-bottom: 0.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
}

.mobile-menu-item:active {
  background: var(--bg-tertiary);
  transform: scale(0.98);
}

.mobile-menu-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: white;
  border-radius: 12px;
  flex-shrink: 0;
}

.mobile-menu-icon svg {
  width: 24px;
  height: 24px;
}

.mobile-menu-text {
  flex: 1;
  min-width: 0;
}

.mobile-menu-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.mobile-menu-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.mobile-menu-arrow {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* Mobile filter box */
.mobile-filter-box {
  padding: 0.75rem 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.mobile-filter-box input {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  background: var(--bg-tertiary);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.mobile-filter-box input:focus {
  outline: none;
  border-color: var(--primary);
}

/* Mobile list */
.mobile-list {
  padding: 0;
}

.mobile-list-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.2s;
}

.mobile-list-item:active {
  background: var(--bg-tertiary);
}

.mobile-list-item-text {
  flex: 1;
  min-width: 0;
}

.mobile-list-item-title {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.25rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mobile-list-item-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.mobile-list-item-arrow {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.mobile-loading,
.mobile-empty {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
}

/* Mobile books list */
.mobile-books-list {
  padding: 0;
}

.mobile-book-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.2s;
}

.mobile-book-item:active {
  background: var(--bg-tertiary);
}

.mobile-book-item-cover {
  width: 60px;
  height: 90px;
  flex-shrink: 0;
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.mobile-book-item-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.mobile-book-item-cover-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  background: var(--bg-tertiary);
}

.mobile-book-item-info {
  flex: 1;
  min-width: 0;
}

.mobile-book-item-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.mobile-book-item-author {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.mobile-book-item-series {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
  font-style: italic;
}

.mobile-book-item-meta {
  display: flex;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* Mobile book detail */
.mobile-book-detail {
  padding: 1rem;
  padding-bottom: 100px;
}

.mobile-book-cover {
  width: 100%;
  max-width: 300px;
  margin: 0 auto 1.5rem;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.mobile-book-cover img {
  width: 100%;
  height: auto;
  display: block;
}

.mobile-book-cover-placeholder {
  width: 100%;
  aspect-ratio: 2/3;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  background: var(--bg-secondary);
}

.mobile-book-info {
  margin-bottom: 1.5rem;
}

.mobile-book-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.mobile-book-author {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.mobile-book-series {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.mobile-book-details {
  margin-bottom: 1.5rem;
}

.mobile-book-detail-row {
  display: flex;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}

.mobile-book-detail-row:last-child {
  border-bottom: none;
}

.mobile-book-detail-label {
  flex: 0 0 100px;
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

.mobile-book-detail-value {
  flex: 1;
  font-size: 0.9375rem;
  color: var(--text);
}

.mobile-book-description {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.mobile-book-description-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.mobile-book-description-text {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-secondary);
}

.mobile-book-actions {
  position: sticky;
  bottom: 0;
  padding: 1rem;
  background: var(--bg);
  border-top: 1px solid var(--border);
  margin: 0 -1rem -1rem;
}

/* Mobile buttons */
.mobile-btn-primary,
.mobile-btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

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

.mobile-btn-primary:active {
  background: var(--primary-dark);
  transform: scale(0.98);
}

.mobile-btn-primary svg {
  width: 20px;
  height: 20px;
}

.mobile-btn-secondary {
  background: var(--bg-secondary);
  color: var(--text);
  border: 1px solid var(--border);
  margin-top: 0.5rem;
}

.mobile-btn-secondary:active {
  background: var(--bg-tertiary);
  transform: scale(0.98);
}

.mobile-btn-secondary svg {
  width: 20px;
  height: 20px;
}

/* Mobile load more */
.mobile-load-more {
  padding: 1rem;
  text-align: center;
}

.mobile-load-more button {
  width: 100%;
  padding: 0.75rem;
  font-size: 0.875rem;
}

.mobile-btn-download {
  box-shadow: var(--shadow-lg);
}

/* Mobile search form */
.mobile-search-form {
  padding: 1rem;
}

.mobile-form-group {
  margin-bottom: 1rem;
}

.mobile-form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.mobile-form-group input {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  background: var(--bg-secondary);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.mobile-form-group input:focus {
  outline: none;
  border-color: var(--primary);
}

/* Mobile search results */
#mobile-search-results {
  margin-top: 1rem;
}

/* Mobile configuration */
.mobile-config {
  padding: 1rem;
}

.mobile-config-section {
  margin-bottom: 2rem;
}

.mobile-config-section h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mobile-select {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  background: var(--bg-secondary);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.mobile-select:focus {
  outline: none;
  border-color: var(--primary);
}

/* Smooth scrolling for mobile */
.mobile-content {
  scroll-behavior: smooth;
}

/* Touch feedback */
@media (hover: none) {
  .mobile-menu-item:hover,
  .mobile-list-item:hover,
  .mobile-book-item:hover {
    background: var(--bg-secondary);
  }
}

/* Safe area insets for notched devices */
@supports (padding: max(0px)) {
  .mobile-header {
    padding-top: max(0.75rem, env(safe-area-inset-top));
  }
  
  .mobile-book-actions {
    padding-bottom: max(1rem, env(safe-area-inset-bottom));
  }
}

/* Mobile login screen */
@media (max-width: 768px) {
  .login-page {
    padding: 1rem;
    align-items: flex-start;
    padding-top: 2rem;
  }
  
  .login-card {
    padding: 1.5rem;
    margin: 0;
    max-width: 100%;
  }
  
  .login-logo {
    margin-bottom: 1.5rem;
  }
  
  .login-logo svg {
    width: 48px;
    height: 48px;
  }
  
  .login-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
  }
  
  .login-subtitle {
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
  }
  
  .form-group {
    margin-bottom: 1rem;
  }
  
  .form-label {
    font-size: 0.875rem;
  }
  
  .form-input {
    padding: 0.75rem;
    font-size: 1rem;
  }
  
  .btn {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
  }
}

/* Mobile Reading History Styles */
.mobile-reading-history-item {
  padding: 1rem;
}

.mobile-reading-history-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.25rem;
  font-size: 0.75rem;
}

.mobile-reading-history-progress {
  color: var(--primary);
  font-weight: 500;
}

.mobile-reading-history-time {
  color: var(--text-muted);
}