/*
Theme Name: SpeedRead Pro
Description: Professional WordPress theme for ebook libraries, bookstores, and digital publishing platforms. Features modern design, performance optimization, enhanced security, and full accessibility compliance.
Version: 2.0.1
Author: SpeedRead Team
Author URI: https://speedread-theme.com
Text Domain: speedread
Domain Path: /languages
Requires at least: 5.0
Tested up to: 6.3
Requires PHP: 7.4
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Tags: ebook, library, bookstore, modern, responsive, accessibility-ready, custom-colors, custom-menu, featured-images, threaded-comments, translation-ready
*/

/* CSS Variables for consistent theming */
:root {
  --primary-color: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #3b82f6;
  --secondary-color: #f59e0b;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --text-light: #9ca3af;
  --bg-primary: #ffffff;
  --bg-secondary: #f9fafb;
  --bg-tertiary: #f3f4f6;
  --border-color: #e5e7eb;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --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);
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden; /* prevent horizontal scroll due to off-canvas elements */
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin: 0 0 1rem 0;
  letter-spacing: -0.025em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.875rem); }
h4 { font-size: 1.25rem; }
h5, h6 { font-size: 1.125rem; }

p {
  margin: 0 0 1rem 0;
  color: var(--text-secondary);
}

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

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

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container {
    padding: 0 2rem;
  }
}

/* Header & Navigation */
.site-header {
  background: var(--background);
  box-shadow: 0 2px 8px 0 rgba(0,0,0,0.03);
  position: relative;
  z-index: 100;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 2rem;
}

.nav__logo {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
}

.nav__logo-link, .nav__site-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  cursor: pointer;
  z-index: 110;
}

.nav__hamburger {
  width: 28px;
  height: 3px;
  background: var(--primary-color);
  margin: 4px 0;
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(.4,2,.6,1);
  display: block;
}

.nav__menu-wrap {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__item {
  position: relative;
}

.nav__item > a {
  padding: 0.75rem 1rem;
  border-radius: 6px;
  font-weight: 500;
  color: var(--text-primary);
  transition: background 0.2s, color 0.2s;
}

.nav__item > a:hover,
.nav__item > a:focus {
  background: var(--primary-light);
  color: var(--primary-color);
}

/* Submenu */
.menu-item-has-children > a::after {
  content: '\25BC';
  font-size: 0.7em;
  margin-left: 0.4em;
  transition: transform 0.2s;
}
.menu-item-has-children:hover > .sub-menu,
.menu-item-has-children:focus-within > .sub-menu {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.sub-menu {
  position: absolute;
  left: 0;
  top: 100%;
  min-width: 180px;
  background: var(--background);
  box-shadow: 0 4px 16px 0 rgba(0,0,0,0.06);
  border-radius: 8px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: all 0.2s cubic-bezier(.4,2,.6,1);
  z-index: 10;
}
.sub-menu li a {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
}
.sub-menu li a:hover,
.sub-menu li a:focus {
  background: var(--primary-light);
  color: var(--primary-color);
}

/* Search */
.nav__search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.nav__search-field {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  background: var(--background);
  color: var(--text-primary);
  transition: border 0.2s, box-shadow 0.2s;
}
.nav__search-field:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px var(--primary-light);
}
.nav__search-btn {
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  display: flex;
  align-items: center;
  cursor: pointer;
  transition: background 0.2s;
}
.nav__search-btn:hover,
.nav__search-btn:focus {
  background: var(--primary-dark);
}

/* Responsive */
@media (max-width: 900px) {
  .nav__toggle {
    display: flex;
  }
  .nav__menu-wrap {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%; /* avoid 100vw which can cause horizontal overflow on mobile */
    background: var(--background);
    box-shadow: 0 8px 32px 0 rgba(0,0,0,0.08);
    flex-direction: column;
    align-items: flex-start;
    padding: 1.5rem 2rem 2rem 2rem;
    transform: translateY(-32px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(.4,2,.6,1);
    z-index: 100;
  }
  .nav__menu--open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }
  .nav__menu {
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
  }
  .nav__item > a {
    width: 100%;
    padding: 1rem 0;
  }
  .sub-menu {
    position: static;
    box-shadow: none;
    background: transparent;
    border-radius: 0;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    margin-left: 1rem;
    margin-top: 0.2rem;
  }
  .menu-item-has-children > a::after {
    transform: rotate(-90deg);
  }
  .nav__item--submenu-open > .sub-menu {
    display: block;
  }
  .sub-menu {
    display: none;
  }
}

/* Single Ebook Page Modern Styles */
.single-ebook-hero-wrap {
  background: var(--gradient-primary);
  padding: 3rem 0 2.5rem 0;
  position: relative;
  overflow: hidden;
}
.ebook-hero {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 2.5rem;
  position: relative;
  z-index: 1;
}
.ebook-hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0.18;
  z-index: 0;
}
.ebook-cover-container {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 200px;
  max-width: 260px;
  margin: 0 auto;
}
.ebook-cover-wrapper {
  perspective: 1200px;
  position: relative;
}
.ebook-cover-image {
  width: 200px;
  height: 300px;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  transform: rotateY(-10deg) rotateX(2deg) scale(1);
  transition: transform 0.35s cubic-bezier(.4,2,.6,1), box-shadow 0.3s;
  background: var(--bg-tertiary);
}
.ebook-cover-wrapper:hover .ebook-cover-image {
  transform: rotateY(0deg) rotateX(0deg) scale(1.05);
  box-shadow: var(--shadow-xl);
}
.ebook-cover-shadow {
  position: absolute;
  left: 10px; right: 10px; bottom: -18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(30,64,175,0.16);
  filter: blur(2px);
  z-index: -1;
}
.ebook-hero-content {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
  flex-wrap: wrap;
  width: 100%;
  z-index: 1;
}
.ebook-info {
  flex: 1 1 340px;
  min-width: 290px;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  justify-content: center;
}
.ebook-badges {
  display: flex;
  gap: 0.7rem;
  margin-bottom: 0.15rem;
}
.ebook-badge {
  background: var(--primary-light);
  color: #fff;
  font-size: 0.93rem;
  font-weight: 600;
  border-radius: 8px;
  padding: 0.25em 0.85em;
  letter-spacing: 0.03em;
  box-shadow: var(--shadow-sm);
}
.ebook-title {
  font-size: 2.2rem;
  font-weight: 800;
  margin: 0.2em 0 0.1em 0;
  color: var(--primary-dark);
  line-height: 1.13;
}
.ebook-authors {
  font-size: 1.1rem;
  color: var(--primary-color);
  font-weight: 500;
  display: flex;
  gap: 0.5em;
  flex-wrap: wrap;
  align-items: center;
}
.ebook-authors .author-link {
  color: var(--primary-color);
  font-weight: 600;
  text-decoration: underline dotted;
  transition: color 0.2s;
}
.ebook-authors .author-link:hover {
  color: var(--secondary-color);
}
.ebook-rating {
  display: flex;
  align-items: center;
  gap: 0.7em;
  font-size: 1.1rem;
}
.stars {
  color: #f59e0b;
  font-size: 1.2em;
  letter-spacing: 0.09em;
}
.star {
  display: inline-block;
  margin-right: 0.05em;
}
.ebook-meta-stats {
  display: flex;
  gap: 1.3rem;
  font-size: 1.03rem;
  color: var(--text-light);
  margin-top: 0.4em;
}
.ebook-meta-stats .meta-icon {
  font-size: 1.1em;
  margin-right: 0.3em;
  vertical-align: middle;
}
.ebook-view-count {
  margin-top: 0.4em;
  color: var(--text-light);
}

/* Meta Stats Row - Single Book Hero */
.ebook-meta-stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  align-items: center;
  background: var(--bg-secondary, #f6f8fa);
  border-radius: 12px;
  padding: 0.7em 1.2em;
  margin: 1.1em 0 0.6em 0;
  box-shadow: 0 2px 12px 0 rgba(30,64,175,0.04);
  border: 1px solid var(--border-color, #e5e7eb);
}
.ebook-meta-stats-row .meta-item {
  display: flex;
  align-items: center;
  gap: 0.5em;
  font-size: 1.05rem;
  color: var(--text-secondary, #5b6472);
  font-weight: 500;
  letter-spacing: 0.01em;
}
.ebook-meta-stats-row .meta-icon {
  font-size: 1.15em;
  opacity: 0.83;
  margin-right: 0.17em;
}
@media (max-width: 600px) {
  .ebook-meta-stats-row {
    flex-direction: column;
    gap: 0.7rem;
    padding: 0.8em 0.7em;
    align-items: flex-start;
  }
  .ebook-meta-stats-row .meta-item {
    font-size: 1rem;
  }
}

/* Main Content Layout */
.single-ebook-layout {
  display: flex;
  gap: 2.5rem;
  margin-top: 2.5rem;
  align-items: flex-start;
}
.single-ebook-main {
  flex: 1 1 0;
  min-width: 0;
}
.single-ebook-section {
  background: var(--bg-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 2.5rem;
  padding: 2.2rem 2rem 2rem 2rem;
  transition: box-shadow 0.2s;
}
.single-ebook-section:last-child {
  margin-bottom: 0;
}
.single-ebook-description-section .section-title {
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 1.3rem;
  color: var(--primary-color);
}
.description-content {
  color: var(--text-primary);
  font-size: 1.09rem;
  line-height: 1.7;
  letter-spacing: 0.01em;
}

/* Download Options */
.ebook-downloads {
  margin-top: 1.5rem;
}

.ebook-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7em;
  align-items: center;
  margin-bottom: 1.2em;
}

.btn-sm {
  font-size: 0.93rem !important;
  padding: 0.48em 1em !important;
  min-height: 36px !important;
  margin-bottom: 0 !important;
  border-radius: 7px !important;
}

.download-container {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
}
.ebook-download-link, .ebook-download-btn {
  display: flex;
  align-items: center;
  gap: 0.7em;
  background: var(--primary-color);
  color: #fff;
  border-radius: 8px;
  padding: 0.75em 1.5em;
  font-size: 1.08rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  transition: background 0.22s, box-shadow 0.22s, transform 0.22s;
  text-decoration: none;
  border: none;
  cursor: pointer;
  outline: none;
}
.ebook-download-link:hover, .ebook-download-btn:hover, .ebook-download-link:focus, .ebook-download-btn:focus {
  background: var(--primary-dark);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px) scale(1.04);
}

/* Related Books */
.single-ebook-related-section {
  margin-top: 2.5rem;
}
.related-books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
}

.related-grid-6col {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 2rem;
}
@media (max-width: 1200px) {
  .related-grid-6col { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 900px) {
  .related-grid-6col { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .related-grid-6col { grid-template-columns: 1fr; }
}
.related-book-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
  position: relative;
}
.related-book-card:hover, .related-book-card:focus-within {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px) scale(1.03);
}
.book-cover-container {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius) var(--border-radius) 0 0;
}
.book-cover {
  width: 100%;
  aspect-ratio: 2/3;
  object-fit: cover;
  display: block;
  transition: transform 0.22s;
}
.related-book-card:hover .book-cover,
.related-book-card:focus-within .book-cover {
  transform: scale(1.04) rotateZ(-1deg);
}
.book-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37,99,235,0.10) 0%, rgba(245,158,11,0.08) 100%);
  opacity: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.22s;
}
.related-book-card:hover .book-overlay,
.related-book-card:focus-within .book-overlay {
  opacity: 1;
}
.view-book {
  color: var(--primary-color);
  font-weight: 700;
  background: #fff;
  padding: 0.4em 1.1em;
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
  font-size: 1.01rem;
}
.book-info {
  padding: 1.1rem 1rem 1rem 1rem;
}
.book-title {
  font-size: 1.09rem;
  font-weight: 700;
  margin-bottom: 0.2em;
  color: var(--primary-dark);
}
.book-author {
  font-size: 0.98rem;
  color: var(--text-secondary);
}

/* Sidebar */
.single-ebook-sidebar {
  flex: 0 0 320px;
  max-width: 340px;
  min-width: 220px;
  position: sticky;
  top: 2.5rem;
  align-self: flex-start;
}
.sidebar-card {
  background: var(--bg-secondary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2rem 1.5rem 1.5rem 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 900px) {
  .ebook-hero {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  .ebook-hero-content {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }
  .single-ebook-layout {
    flex-direction: column;
    gap: 1.5rem;
  }
  .single-ebook-sidebar {
    max-width: 100%;
    min-width: 0;
    position: static;
    margin-top: 2.5rem;
  }
}

/* Buttons */
.button, .wp-block-button__link, .ebook-download-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  text-align: center;
  text-decoration: none;
  min-height: 44px;
}

.button:hover, .wp-block-button__link:hover, .ebook-download-btn:hover {
  background: var(--primary-dark);
  color: white;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.button:focus, .wp-block-button__link:focus, .ebook-download-btn:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Meta Icons */
.meta-icon {
  width: 1.25em;
  height: 1.25em;
  vertical-align: middle;
  margin-right: 0.4em;
  display: inline-block;
  color: var(--primary-color);
}

/* Images */
img, video {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--border-radius);
}

img[loading="lazy"] {
  background: var(--bg-secondary);
}

/* Header */
header.site-header {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 1.3rem 0 1.1rem 0;
  position: sticky;
  top: 0;
  z-index: 200;
  transition: box-shadow 0.25s, padding 0.25s;
}
header.site-header.sticky {
  box-shadow: 0 4px 18px 0 rgba(37,99,235,.07);
  padding: 0.7rem 0 0.6rem 0;
}
.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2.5rem;
}
.site-branding {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 1.2rem;
}
.custom-logo-link, .custom-logo {
  max-height: 54px;
  max-width: 54px;
  width: auto;
  height: auto;
  display: inline-block;
  border-radius: 12px;
  box-shadow: 0 2px 12px 0 rgba(37,99,235,.09);
  background: #fff;
}
.site-title {
  font-size: 2.1rem;
  font-weight: 900;
  color: var(--primary-color);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
  margin-left: 0.7rem;
  text-shadow: 0 2px 8px rgba(37,99,235,0.07);
}
.site-title:hover {
  opacity: 0.82;
}
.main-navigation {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}
.nav-menu {
  display: flex;
  gap: 2.2rem;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu li {
  position: relative;
}
.nav-menu a {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.09rem;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
  text-decoration: none;
  display: inline-block;
}
.nav-menu a:hover, .nav-menu a:focus, .nav-menu .current-menu-item > a {
  background: var(--gradient-secondary);
  color: #fff;
  box-shadow: 0 2px 8px 0 rgba(245,158,11,.11);
  text-decoration: none;
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--primary-color);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  transition: background 0.18s;
  margin-left: 0.7rem;
}
.menu-toggle:focus, .menu-toggle:hover {
  background: var(--bg-secondary);
}
.search-form {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-left: 2rem;
  background: #fff;
  border-radius: 999px;
  box-shadow: 0 2px 8px 0 rgba(37,99,235,.06);
  padding: 0.1rem 0.7rem 0.1rem 0.5rem;
  transition: box-shadow 0.18s, border 0.18s;
  border: 1.5px solid transparent;
}
.search-form:focus-within {
  box-shadow: 0 4px 18px 0 rgba(37,99,235,.13);
  border: 1.5px solid var(--primary-light);
}
.search-field {
  padding: 0.5rem 0.9rem 0.5rem 0.5rem;
  border: none;
  border-radius: 999px;
  font-size: 1.04rem;
  min-width: 150px;
  background: none;
  outline: none;
  color: var(--text-primary);
  transition: background 0.18s;
}
.search-field:focus {
  background: #f1f5fb;
}
.search-submit {
  background: none;
  border: none;
  color: var(--primary-color);
  cursor: pointer;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  transition: background 0.18s;
  display: flex;
  align-items: center;
}
.search-submit:hover, .search-submit:focus {
  background: #f1f5fb;
}
@media (max-width:1100px) {
  .header-container { gap: 1.1rem; }
  .nav-menu { gap: 1.2rem; }
  .search-form { margin-left: 1rem; }
}
@media (max-width:900px) {
  .header-container { flex-direction: row; gap: 0.7rem; }
  .main-navigation { flex: 1 0 auto; }
  .menu-toggle { display: inline-flex; }
  .nav-menu { display: none; position: absolute; left: 0; right: 0; top: 100%; background: #fff; flex-direction: column; gap: 0; box-shadow: 0 8px 32px 0 rgba(37,99,235,.09); border-radius: 0 0 1.2rem 1.2rem; z-index: 150; animation: slideDown 0.22s cubic-bezier(.4,0,.2,1); }
  .main-navigation.open .nav-menu { display: flex; }
  .nav-menu li { width: 100%; }
  .nav-menu a { width: 100%; padding: 1.1rem 1.5rem; font-size: 1.13rem; border-radius: 0; text-align: left; }
  .search-form { display: flex; width: 100%; margin: 1.1rem 0 0 0; }
}
@media (max-width:600px) {
  .header-container { flex-direction: column; align-items: stretch; gap: 0.3rem; }
  .site-branding { justify-content: flex-start; }
  .custom-logo-link, .custom-logo { max-height: 36px; max-width: 36px; }
  .site-title { font-size: 1.18rem; margin-left: 0.4rem; }
  .menu-toggle { width: 44px; height: 44px; font-size: 1.5rem; }
  .nav-menu a { padding: 0.95rem 1.2rem; font-size: 1.04rem; }
  .search-form { margin: 0.7rem 0 0 0; }
}
@keyframes slideDown{0%{opacity:0;transform:translateY(-8px);}100%{opacity:1;transform:translateY(0);}}

header.site-header {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  transition: var(--transition);
}

header.site-header.sticky {
  box-shadow: var(--shadow-md);
}

.site-branding {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.site-title {
  font-size: 1.875rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.site-title:hover {
  opacity: 0.8;
}

/* Navigation */
nav.primary-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav.primary-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius);
  transition: var(--transition);
}

nav.primary-menu a:hover, nav.primary-menu a:focus {
  color: var(--primary-color);
  background: var(--bg-secondary);
}

.search-form {display:flex;align-items:center;gap:.5rem;margin-left:2rem;}
.search-field {padding:.4rem .7rem;border:1px solid #e5e7eb;border-radius:999px;font-size:1rem;min-width:120px;background:#fff;transition:border .2s;}
.search-field:focus {outline:none;border-color:#2563eb;}
.search-submit {background:none;border:none;color:#2563eb;cursor:pointer;padding:.3rem .5rem;border-radius:999px;transition:background .2s;}
.search-submit:hover,.search-submit:focus {background:#f1f5fb;}
.header-row {display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1.5rem;}
@media (max-width:900px){
  .header-row{flex-direction:column;align-items:stretch;gap:.7rem;}
  .menu-toggle{display:inline-block;width:48px;height:48px;min-width:48px;min-height:48px;justify-content:center;align-items:center;}
  nav.primary-menu{display:none;width:100%;margin:0;}
  nav.primary-menu.open{display:block;animation:slideDown .25s cubic-bezier(.4,0,.2,1);}
  nav.primary-menu ul{flex-direction:column;gap:.5rem;align-items:flex-start;}
  nav.primary-menu a{width:100%;padding:.7rem 1rem;box-sizing:border-box;font-size:1.1rem;}
  .search-form{width:100%;margin:0;margin-top:.5rem;}
}
@media (max-width:600px){
  header.site-header{padding:.3rem 0;}
  .header-row{flex-direction:row;align-items:center;justify-content:space-between;gap:0;flex-wrap:nowrap;}
  .site-branding{flex:1 0 auto;display:flex;align-items:center;gap:.5rem;min-width:0;}
  .custom-logo-link,.custom-logo{max-height:36px;max-width:36px;display:inline-block;}
  .site-title{font-size:1rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-left:.5rem;font-weight:700;}
  .menu-toggle{display:inline-flex;width:44px;height:44px;min-width:44px;min-height:44px;align-items:center;justify-content:center;margin-left:.5rem;}
  .search-form{display:none!important;}
}
@keyframes slideDown{0%{opacity:0;transform:translateY(-8px);}100%{opacity:1;transform:translateY(0);}}

nav.primary-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1.5rem;
}
nav.primary-menu li {
  position: relative;
}
nav.primary-menu a {
  color: #2563eb;
  text-decoration: none;
  font-weight: 500;
  padding: 0.25rem 0.5rem;
  border-radius: 0.25rem;
  transition: background 0.15s, color 0.15s;
}
nav.primary-menu a:focus, nav.primary-menu a:hover {
  text-decoration: underline;
  background: #f1f5fb;
  color: #1e40af;
}
@media (max-width: 600px) { header.site-header, .site-footer, .container { padding-left: 0.5rem; padding-right: 0.5rem; } }

.grid { display: grid; gap: 2rem; }
.grid-cols-1 { grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid-cols-2 { grid-template-columns: repeat(2,1fr); } }
@media (min-width: 900px) { .grid-cols-3 { grid-template-columns: repeat(3,1fr); } }
@media (min-width: 1200px) { .grid-cols-4 { grid-template-columns: repeat(4,1fr); } }
.ebook-card{background:#fff;border-radius:.75rem;box-shadow:0 2px 12px 0 rgba(0,0,0,.04);overflow:hidden;display:flex;flex-direction:column;transition:box-shadow .2s;}
.ebook-card:hover{box-shadow:0 4px 24px 0 rgba(37,99,235,.08);}
.ebook-card img{width:100%;height:220px;object-fit:cover;background:#e5e7eb;display:block;}
@media (max-width:600px){.ebook-card img{height:160px;}}
.ebook-meta{padding:1rem;flex:1 1 auto;display:flex;flex-direction:column;}
.ebook-title{font-size:1.1rem;font-weight:600;margin-bottom:.4rem;color:#222;text-decoration:none;line-height:1.25;}
.ebook-title:hover{color:#2563eb;}
.ebook-author{font-size:.95rem;color:#555;margin-bottom:.5rem;}
.ebook-view-count{font-size:.85rem;color:#888;margin-top:.7rem;display:flex;align-items:center;gap:.25rem;}
.single-ebook-cover{width:100%;max-width:380px;height:auto;border-radius:.5rem;margin:0 auto 1.5rem;display:block;box-shadow:0 2px 12px 0 rgba(0,0,0,.05);}
@media (max-width:600px){.single-ebook-cover{max-width:95vw;}}
.prose{line-height:1.7;color:#222;margin-bottom:2rem;}
.related-ebooks{margin-top:2.5rem;}
.related-ebooks-title{font-size:1.2rem;font-weight:600;margin-bottom:.7rem;color:#2563eb;}
.related-ebooks .ebook-card{min-width:0;}
.ebook-links{margin-bottom:1.5rem;display:flex;flex-wrap:wrap;gap:.7rem;}
.ebook-links .button,.ebook-links .ebook-download-btn{margin:0;}
.no-ebooks-found{text-align:center;color:#888;margin:2rem 0;}
.footer-widget{margin-bottom:1.5rem;}
.footer-title{font-size:1.1rem;font-weight:600;margin-bottom:.5rem;}
.footer-bottom{border-top:1px solid #eee;margin-top:2rem;padding-top:1rem;color:#aaa;font-size:.98rem;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:.7rem;text-align:center;}
.footer-credits{font-size:.9rem;color:#888;margin-top:.5rem;}
@media (max-width:600px){.footer-bottom{flex-direction:column;gap:.3rem;font-size:.93rem;padding:1.2rem 0 .7rem 0;}}

.search-results-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 2rem;
}
@media (max-width: 1200px) {
  .search-results-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 900px) {
  .search-results-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .search-results-grid { grid-template-columns: 1fr; }
}

.read-more-container {
  margin-top: 2em;
  margin-bottom: 2em;
  text-align: center;
}

.read-more-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-color);
  color: #fff;
  border-radius: var(--border-radius);
  padding: 0.7em 1.4em;
  font-size: 1.08rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  box-shadow: var(--shadow-sm);
  transition: background 0.22s, box-shadow 0.22s, transform 0.22s;
  margin-bottom: 1em;
}
.read-more-btn:hover, .read-more-btn:focus {
  background: var(--primary-dark);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px) scale(1.04);
  outline: none;
}

/* Footer Styles */
.site-footer {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 3rem 0 0 0;
  border-top: 1px solid var(--border-color);
  font-size: 1rem;
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}
.footer-widgets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.5rem;
  margin-bottom: 2rem;
}
.footer-widget, .widget, .wp-block-group {
  background: none;
  box-shadow: none;
  padding: 0;
  border: none;
}
.footer-title, .wp-block-heading {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1.1rem;
  margin-top: 0;
}
.footer-menu ul, .footer-widget ul, .widget ul, .wp-block-archives-list, .wp-block-categories-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-menu li, .footer-widget li, .widget li, .wp-block-archives-list li, .wp-block-categories-list li {
  margin-bottom: 0.6rem;
}
.footer-menu a, .footer-widget a, .widget a, .wp-block-archives-list a, .wp-block-categories-list a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-menu a:hover, .footer-widget a:hover, .widget a:hover, .wp-block-archives-list a:hover, .wp-block-categories-list a:hover {
  color: var(--primary-color);
  text-decoration: underline;
}
@media (max-width: 800px) {
  .footer-container {
    padding: 0 1rem;
  }
  .footer-widgets {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}


/* Single Ebook Two-Column Layout */

/* Modern Hamburger Navbar Styles */
.navbar {
  align-items: center;
  background: #fff;
  box-shadow: 0 5px 20px rgba(0,0,0,0.2);
  display: flex;
  flex-direction: row;
  font-family: sans-serif;
  padding: 10px 50px;
  position: relative;
  z-index: 1200;
}
.logo {
  max-width: 200px;
  display: flex;
  align-items: center;
}
.push-left {
  margin-left: auto;
}
.hamburger {
  background: transparent;
  border: none;
  cursor: pointer;
  display: none;
  outline: none;
  height: 30px;
  position: relative;
  width: 30px;
  z-index: 1000;
}
.hamburger-line {
  background: #272727;
  height: 3px;
  position: absolute;
  left: 0;
  transition: all .2s ease-out;
  width: 100%;
}
.hamburger-line-top { top: 3px; }
.hamburger-line-middle { top: 50%; transform: translateY(-50%); }
.hamburger-line-bottom { bottom: 3px; }
.menu-active .hamburger-line-top { top: 50%; transform: rotate(45deg) translateY(-50%); }
.menu-active .hamburger-line-middle { left: 50%; opacity: 0; width: 0; }
.menu-active .hamburger-line-bottom { bottom: 50%; transform: rotate(-45deg) translateY(50%); }
@media screen and (max-width: 768px) {
  .hamburger { display: inline-block; }
  .nav-menu {
    background: #fff;
    flex-direction: column;
    justify-content: center;
    opacity: 0;
    position: absolute;
    top: 100%; left: 0; right: 0;
    transform: translateY(-100%);
    text-align: center;
    width: 100vw;
    min-width: 200px;
    box-shadow: 0 8px 32px 0 rgba(37,99,235,.09);
    transition: all .25s ease-in;
    z-index: 1200;
  }
  .menu-active.nav-menu {
    transform: translateY(0%);
    opacity: 1;
  }
}
.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  transition: all .25s ease-in;
}
.nav-menu li {
  position: relative;
}
.nav-menu .menu-item a {
  color: #444444;
  display: block;
  line-height: 30px;
  margin: 0px 10px;
  text-decoration: none;
  text-transform: uppercase;
  font-weight: 600;
  font-size: 15px;
  padding: 8px 16px;
  border-radius: 6px;
  transition: background 0.18s, color 0.18s;
}
.nav-menu .menu-item a:hover {
  color: #222;
  background: #f0f0f0;
  text-decoration: underline;
}
@media screen and (max-width: 768px) {
  .nav-menu {
    flex-direction: column;
    width: 100vw;
    left: 0; right: 0;
    top: 100%;
  }
  .nav-menu .menu-item a {
    font-size: 20px;
    margin: 8px;
    padding: 12px 0;
  }
}
.sub-nav {
  border: 1px solid #ccc;
  display: none;
  position: absolute;
  background-color: #fff;
  padding: 5px 5px;
  list-style: none;
  width: 230px;
  left: 0;
  top: 100%;
  z-index: 1300;
}
@media screen and (max-width: 768px) {
  .sub-nav {
    position: relative;
    width: 100%;
    display: none;
    background-color: rgba(0, 0, 0, 0.20);
    box-sizing: border-box;
    left: 0;
    top: auto;
  }
}
.menu-item-has-children:hover > .sub-nav,
.menu-item-has-children:focus-within > .sub-nav {
  display: block;
}
.sub-nav:hover {
  display: block;
}
.search-form-navbar {
  display: flex;
  align-items: center;
  margin: 0 0 0 20px;
  background: #f6f6f6;
  border-radius: 999px;
  padding: 3px 10px;
  box-shadow: 0 1px 5px rgba(0,0,0,0.04);
  transition: box-shadow 0.18s, border 0.18s;
  border: 1px solid #eee;
}
.search-field-navbar {
  border: none;
  background: transparent;
  font-size: 15px;
  padding: 7px 8px 7px 4px;
  outline: none;
  color: #272727;
  min-width: 120px;
}
.search-submit-navbar {
  background: none;
  border: none;
  color: #272727;
  cursor: pointer;
  padding: 0 6px;
  border-radius: 50%;
  transition: background 0.18s;
}
.search-submit-navbar:hover, .search-submit-navbar:focus {
  background: #eee;
}
@media screen and (max-width: 768px) {
  .search-form-navbar {
    margin: 15px auto 10px auto;
    width: 90vw;
    max-width: 400px;
    justify-content: center;
  }
  .search-field-navbar {
    width: 100%;
    min-width: 0;
  }
}

.ebook-content-wrapper.has-sidebar {
  display: flex;
  gap: 2.5rem;
  align-items: flex-start;
}
.ebook-main-content {
  flex: 1 1 0%;
  min-width: 0;
}
.ebook-sidebar {
  flex: 0 0 300px;
  max-width: 320px;
  width: 100%;
  background: var(--bg-secondary);
  border-radius: var(--border-radius);
  box-shadow: 0 2px 12px 0 rgba(0,0,0,.04);
  padding: 2rem 1.2rem;
  margin-top: 0;
}
@media (max-width: 1000px) {
  .ebook-content-wrapper.has-sidebar {
    flex-direction: column;
    gap: 2rem;
  }
  .ebook-sidebar {
    max-width: 100%;
    margin-top: 1.5rem;
    padding: 1.2rem 0.7rem;
  }
}
.archive-title,.homepage-title{font-size:2rem;font-weight:700;margin:2rem 0 1.5rem 0;color:#2563eb;}
.button:focus-visible,.ebook-download-btn:focus-visible{outline:2px solid #2563eb;outline-offset:2px;box-shadow:0 0 0 2px #fff,0 0 0 4px #2563eb;}
/* Single Ebook hero tweaks (overrides) */
.single-ebook-main .book-hero-section { padding: 48px 0; }
.single-ebook-main .book-hero-content { gap: 32px; }
.single-ebook-main .book-title-main { font-size: 2.25rem; margin: 0 0 12px 0; line-height: 1.2; }
.single-ebook-main .book-author-main { font-size: 1.05rem; margin-bottom: 12px; }
.single-ebook-main .book-excerpt { font-size: 1rem; line-height: 1.55; margin-bottom: 20px; }
.single-ebook-main .book-categories-main { margin-bottom: 20px; }
.single-ebook-main .book-actions { gap: 12px; }
.single-ebook-main .btn-primary, .single-ebook-main .btn-secondary { padding: 16px 32px; font-size: 1.05rem; min-width: 160px; }

@media (max-width: 768px) {
  .single-ebook-main .book-hero-content { gap: 24px; }
  .single-ebook-main .book-cover-image { width: 220px; height: 320px; }
  .single-ebook-main .book-title-main { font-size: 1.85rem; }
  .single-ebook-main .book-views { font-size: 0.8rem; }

  /* Sticky CTA */
  .single-ebook-main .book-actions {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    padding: 12px 16px env(safe-area-inset-bottom);
    background: linear-gradient(180deg, rgba(9,9,11,0) 0%, rgba(55,48,163,0.25) 20%, rgba(55,48,163,0.55) 60%, rgba(55,48,163,0.85) 100%);
    backdrop-filter: blur(8px);
    box-shadow: 0 -8px 24px rgba(0,0,0,0.25);
    justify-content: center;
    z-index: 1000;
  }
  .single-ebook-main .btn-primary.btn-download {
    flex: 1;
    font-size: 1.1rem;
    padding: 16px;
    min-width: 0;
    max-width: 520px;
    border-radius: 10px;
  }
  .single-ebook-main .btn-secondary.btn-buy { display: none; }

  /* prevent overlap with sticky bar */
  .single-ebook-main .book-hero-section { padding-bottom: 96px; }
}

@media (max-width: 480px) {
  .single-ebook-main .book-hero-section { padding: 28px 0; }
  .single-ebook-main .book-cover-image { width: 190px; height: 270px; }
  .single-ebook-main .book-title-main { font-size: 1.65rem; }
}