/* Book Layout Styles - itdojp Standard */

:root {
  --sidebar-width: 300px;
  --header-height: 60px;
  --primary-color: #3498db;
  --secondary-color: #2c3e50;
  --background-color: #ffffff;
  --text-color: #333333;
  --border-color: #e1e4e8;
  --sidebar-bg: #f6f8fa;
  --hover-bg: #f0f0f0;
  --code-bg: #f6f8fa;
  --transition: all 0.3s ease;
}

/* Dark theme variables */
[data-theme="dark"] {
  --background-color: #1a1a1a;
  --text-color: #e4e4e4;
  --border-color: #404040;
  --sidebar-bg: #252525;
  --hover-bg: #333333;
  --code-bg: #2d2d2d;
  --primary-color: #5db3f1;
  --secondary-color: #e4e4e4;
}

/* Reset and Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, "Noto Sans CJK JP", sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--background-color);
  transition: var(--transition);
}

/* Book Wrapper */
.book-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header */
.book-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--background-color);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
  z-index: 1000;
  transition: var(--transition);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 15px;
}

/* Hamburger Menu */
.hamburger-menu {
  display: none;
  width: 30px;
  height: 30px;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  padding: 0;
}

.hamburger-menu span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--text-color);
  margin: 5px 0;
  transition: var(--transition);
}

.hamburger-menu.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-menu.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Site Title */
.site-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0;
}

.site-title a {
  color: var(--text-color);
  text-decoration: none;
  transition: var(--transition);
}

.site-title a:hover {
  color: var(--primary-color);
}

/* Search Container */
.search-container {
  position: relative;
  display: flex;
  align-items: center;
  background-color: var(--code-bg);
  border-radius: 6px;
  padding: 5px 10px;
  transition: var(--transition);
}

.search-input {
  background: none;
  border: none;
  outline: none;
  color: var(--text-color);
  width: 200px;
  padding: 5px;
  font-size: 14px;
}

.search-input::placeholder {
  color: var(--text-color);
  opacity: 0.5;
}

.search-button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
  display: flex;
  align-items: center;
  color: var(--text-color);
}

/* Theme Toggle */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-color);
  transition: var(--transition);
}

.theme-toggle:hover {
  color: var(--primary-color);
}

/* GitHub Link */
.github-link {
  display: flex;
  align-items: center;
  color: var(--text-color);
  transition: var(--transition);
}

.github-link:hover {
  color: var(--primary-color);
}

/* Book Container */
.book-container {
  display: flex;
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--header-height));
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--border-color);
  overflow-y: auto;
  transition: var(--transition);
  z-index: 900;
}

.sidebar-content {
  padding: 20px;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 899;
}

/* Sidebar Navigation */
.toc-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--text-color);
}

.toc-subtitle {
  font-size: 0.9rem;
  font-weight: 600;
  margin-top: 20px;
  margin-bottom: 10px;
  color: var(--text-color);
  opacity: 0.7;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-item {
  margin-bottom: 2px;
}

.toc-item a {
  display: block;
  padding: 8px 12px;
  color: var(--text-color);
  text-decoration: none;
  border-radius: 6px;
  transition: var(--transition);
}

.toc-item a:hover {
  background-color: var(--hover-bg);
  color: var(--primary-color);
}

.toc-item a.active {
  background-color: var(--primary-color);
  color: white;
}

.chapter-number {
  font-weight: 600;
  margin-right: 8px;
  font-size: 0.9rem;
}

.chapter-title {
  font-size: 0.9rem;
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 20px 40px;
  max-width: calc(100% - var(--sidebar-width));
  transition: var(--transition);
}

/* Breadcrumb */
.breadcrumb {
  font-size: 0.9rem;
  margin-bottom: 20px;
  color: var(--text-color);
  opacity: 0.7;
}

.breadcrumb a {
  color: var(--primary-color);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb .separator {
  margin: 0 8px;
  opacity: 0.5;
}

/* Page Content */
.page-content {
  max-width: 900px;
  margin: 0 auto;
}

.page-content h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--text-color);
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 0.5rem;
}

.page-content h2 {
  font-size: 1.5rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.page-content h3 {
  font-size: 1.25rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--text-color);
}

.page-content p {
  margin-bottom: 1rem;
  line-height: 1.7;
}

.page-content ul,
.page-content ol {
  margin-left: 2rem;
  margin-bottom: 1rem;
}

.page-content li {
  margin-bottom: 0.5rem;
}

.page-content code {
  background-color: var(--code-bg);
  padding: 2px 6px;
  border-radius: 3px;
  font-family: 'SF Mono', Monaco, 'Courier New', monospace;
  font-size: 0.9em;
}

.page-content pre {
  background-color: var(--code-bg);
  padding: 1rem;
  border-radius: 6px;
  overflow-x: auto;
  margin-bottom: 1rem;
}

.page-content pre code {
  background: none;
  padding: 0;
}

.page-content blockquote {
  border-left: 4px solid var(--primary-color);
  padding-left: 1rem;
  margin: 1rem 0;
  color: var(--text-color);
  opacity: 0.9;
  font-style: italic;
}

.page-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

.page-content th,
.page-content td {
  padding: 0.75rem;
  text-align: left;
  border: 1px solid var(--border-color);
}

.page-content th {
  background-color: var(--code-bg);
  font-weight: 600;
}

.page-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1rem auto;
  border-radius: 6px;
}

/* Page Navigation */
.page-navigation {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.nav-buttons {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.nav-link {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  background-color: var(--code-bg);
  border-radius: 6px;
  text-decoration: none;
  color: var(--text-color);
  transition: var(--transition);
  font-weight: 500;
}

.nav-link:hover {
  background-color: var(--primary-color);
  color: white;
}

.nav-arrow {
  font-size: 1.2rem;
  margin: 0 8px;
}

/* Responsive Design */
@media (max-width: 768px) {
  /* Show hamburger menu */
  .hamburger-menu {
    display: block;
  }
  
  /* Hide site title on mobile */
  .site-title {
    font-size: 1rem;
  }
  
  /* Adjust header */
  .book-header {
    padding: 0 15px;
  }
  
  /* Hide sidebar by default on mobile */
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .sidebar-overlay.active {
    display: block;
  }
  
  /* Adjust main content */
  .main-content {
    margin-left: 0;
    padding: 20px;
    max-width: 100%;
  }
  
  /* Adjust search */
  .search-input {
    width: 120px;
  }
  
  /* Stack navigation buttons */
  .nav-buttons {
    flex-direction: column;
  }
  
  .nav-link {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  /* Further mobile adjustments */
  .header-right {
    gap: 10px;
  }
  
  .search-container {
    display: none;
  }
  
  .site-title {
    font-size: 0.9rem;
  }
  
  .page-content {
    font-size: 0.95rem;
  }
  
  .page-content h1 {
    font-size: 1.5rem;
  }
  
  .page-content h2 {
    font-size: 1.25rem;
  }
}

/* Print Styles */
@media print {
  .book-header,
  .sidebar,
  .breadcrumb,
  .page-navigation {
    display: none;
  }
  
  .main-content {
    margin-left: 0;
    padding: 0;
    max-width: 100%;
  }
  
  .page-content {
    max-width: 100%;
  }
}