/* Reader Settings CSS */

/* Theme Variables */
.book-viewer {
    /* Light theme (default) */
    --bg-color: #ffffff;
    --text-color: #333333;
    --heading-color: #1f2937;
    --border-color: #e5e7eb;
    --controls-bg: #f9fafb;
    --divider-color: rgba(0,0,0,0.1);
    --shadow-color: rgba(0,0,0,0.1);
    
    /* Font variables */
    --font-size: 1rem;
    --font-family: 'Georgia', serif;
    --line-height: 1.5;
    
    /* Transitions */
    transition: background-color 0.3s, color 0.3s;
  }
  
  /* Dark theme */
  .book-viewer.theme-dark {
    --bg-color: #1f2937;
    --text-color: #e5e7eb;
    --heading-color: #f9fafb;
    --border-color: #4b5563;
    --controls-bg: #111827;
    --divider-color: rgba(255,255,255,0.1);
    --shadow-color: rgba(0,0,0,0.3);
  }
  
  /* Sepia theme */
  .book-viewer.theme-sepia {
    --bg-color: #f8f3e6;
    --text-color: #5c4b37;
    --heading-color: #433628;
    --border-color: #e0d3bc;
    --controls-bg: #f0e6d3;
    --divider-color: rgba(139,115,85,0.1);
    --shadow-color: rgba(139,115,85,0.1);
  }
  
  /* Apply theme colors */
  .book-viewer {
    background-color: var(--controls-bg);
  }
  
  .book-header, .book-navigation {
    background-color: var(--controls-bg);
    border-color: var(--border-color);
  }
  
  .book-title {
    color: var(--heading-color);
  }
  
  .book-content {
    background-color: var(--bg-color);
  }
  
  .book-viewer .book-page {
    background-color: var(--bg-color);
    color: var(--text-color);
    box-shadow: 0 2px 10px var(--shadow-color);
  }
  
  .book-viewer .book-page h1,
  .book-viewer .book-page h2,
  .book-viewer .book-page h3,
  .book-viewer .book-page h4,
  .book-viewer .book-page h5,
  .book-viewer .book-page h6 {
    color: var(--heading-color);
  }
  
  .book-viewer .book-page p,
  .book-viewer .book-page li {
    color: var(--text-color);
  }
  
  .book-page-divider {
    background: linear-gradient(to right, var(--divider-color), var(--border-color), var(--divider-color));
  }
  
  /* Font size classes */
  .book-viewer.font-size-small .book-page {
    --font-size: 0.8rem;
  }
  
  .book-viewer.font-size-medium .book-page {
    --font-size: 1rem;
  }
  
  .book-viewer.font-size-large .book-page {
    --font-size: 1.1rem;
  }
  
  .book-viewer.font-size-xl .book-page {
    --font-size: 1.6rem;
  }
  
  .book-viewer.font-size-xxl .book-page {
    --font-size: 2rem;
  }
  
  /* Font family classes */
  .book-viewer.font-serif .book-page {
    --font-family: 'Georgia', serif;
  }
  
  .book-viewer.font-sans .book-page {
    --font-family: 'Arial', 'Helvetica', sans-serif;
  }
  
  .book-viewer.font-mono .book-page {
    --font-family: 'Courier New', monospace;
  }
  
  .book-viewer.font-dyslexic .book-page {
    --font-family: 'OpenDyslexic', 'Comic Sans MS', sans-serif;
  }
  
  /* Apply font settings to content */
  .book-viewer .book-page {
    font-size: var(--font-size);
    font-family: var(--font-family);
    line-height: var(--line-height);
  }
  
  .book-viewer .book-page h1 {
    font-size: calc(var(--font-size) * 1.8);
  }
  
  .book-viewer .book-page h2 {
    font-size: calc(var(--font-size) * 1.5);
  }
  
  .book-viewer .book-page h3 {
    font-size: calc(var(--font-size) * 1.3);
  }
  
  .book-viewer .book-page p {
    font-size: var(--font-size);
    line-height: var(--line-height);
  }
  
  /* Reader settings panel */
  .reader-settings-panel {
    position: absolute;
    top: 60px;
    right: 15px;
    background-color: var(--controls-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow-color);
    padding: 16px;
    width: 280px; /* Increased from 250px */
    z-index: 1002;
    display: none;
  }
  
  .reader-settings-panel.active {
    display: block;
  }
  
  .reader-settings-section {
    margin-bottom: 16px;
  }
  
  .reader-settings-section:last-child {
    margin-bottom: 0;
  }
  
  .reader-settings-title {
    font-weight: bold;
    margin-bottom: 8px;
    color: var(--heading-color);
    font-size: 0.9rem;
    text-transform: uppercase;
  }
  
  .font-size-buttons,
  .font-family-buttons,
  .theme-buttons {
    display: flex;
    gap: 8px;
  }
  
  .setting-button {
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 0.9rem;
    cursor: pointer;
    flex: 1;
    text-align: center;
    transition: all 0.2s ease;
  }
  
  .setting-button:hover {
    background-color: var(--border-color);
  }
  
  .setting-button.active {
    background-color: var(--heading-color);
    color: var(--bg-color);
    border-color: var(--heading-color);
  }
  
  .font-button {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px 8px; /* Reduced from 6px 12px */
    flex: 1 1 calc(50% - 8px); /* Make buttons take half width minus gap */
    min-width: 0; /* Allow buttons to shrink if needed */
    white-space: nowrap; /* Keep text on one line */
    overflow: hidden; /* Hide overflow */
    text-overflow: ellipsis; /* Add ellipsis for overflow text */
  }
  
  .font-button.font-serif {
    font-family: 'Georgia', serif;
  }
  
  .font-button.font-sans {
    font-family: 'Arial', 'Helvetica', sans-serif;
  }
  
  .font-button.font-mono {
    font-family: 'Courier New', monospace;
  }
  
  .font-button.font-dyslexic {
    font-family: 'OpenDyslexic', 'Comic Sans MS', sans-serif;
  }
  
  .theme-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 4px;
  }
  
  .theme-button.theme-light {
    background-color: #fff;
    color: #333;
    border: 1px solid #ccc;
  }
  
  .theme-button.theme-dark {
    background-color: #1f2937;
    color: #fff;
    border: 1px solid #4b5563;
  }
  
  .theme-button.theme-sepia {
    background-color: #f8f3e6;
    color: #5c4b37;
    border: 1px solid #e0d3bc;
  }
  
  /* Settings toggle button */
  .settings-toggle {
    background: transparent;
    border: none;
    color: var(--heading-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 8px;
    border-radius: 4px;
  }
  
  .settings-toggle:hover {
    background-color: var(--bg-color);
  }
  
  .settings-toggle svg {
    width: 20px;
    height: 20px;
  }
  
  /* Add font for dyslexic readers */
  @font-face {
    font-family: 'OpenDyslexic';
    src: url('https://cdn.jsdelivr.net/npm/open-dyslexic@1.0.3/open-dyslexic-regular.woff') format('woff');
    font-weight: normal;
    font-style: normal;
  }


  @media (max-width: 320px) {
    .reader-settings-panel {
      width: calc(100% - 30px); /* Make panel almost full width on very small screens */
    }
    
    .font-button {
      flex: 1 1 100%; /* Stack font buttons vertically on very small screens */
    }
  }