/* ============================================================
   Noble Imprint Resource Website - Stylesheet
   Mockup B: Visual Catalog with List Toggle

   Class names match the approved mockup HTML.
   ============================================================ */

/* ----- Custom Properties ----- */
:root {
  --color-green: #536942;
  --color-green-light: #6a8556;
  --color-green-dark: #3e4f32;
  --color-gold: #dfb53b;
  --color-gold-light: #f5d36a;
  --color-charcoal: #242833;
  --color-bg: #ffffff;
  --color-bg-warm: #f6f8f5;
  --color-bg-sidebar: #fafbf9;
  --color-border: #e2e6df;
  --color-text: #3a3a3a;
  --color-text-light: #6b6b6b;
  --color-white: #ffffff;

  --font-serif: 'DM Serif Display', Georgia, serif;
  --font-reading: 'Lora', Georgia, serif;
  --font-sans: 'Poppins', sans-serif;
  --font-heading: 'DM Sans', sans-serif;

  --sidebar-width: 280px;
  --header-height: 64px;
}

/* ----- Reset & Base ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: #9EA0A2;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ============================================================
   1. HEADER
   ============================================================ */
/* Default header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(58, 56, 56, 0.75);
  backdrop-filter: blur(3px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.header-inner {
  display: grid;
  grid-template-areas: 'heading navigation icons';
  grid-template-columns: auto auto auto;
  align-items: center;
  column-gap: 2rem;
  padding: 8px 50px;
  max-width: 1100px;
  margin: 0 auto;
}

.logo {
  grid-area: heading;
  display: inline-block;
  padding: 7.5px;
  text-decoration: none;
  line-height: 0;
}

.logo-img {
  width: 150px;
  height: auto;
}

/* Nav */
.desktop-nav {
  grid-area: navigation;
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
}

.desktop-nav > a,
.nav-dropdown-toggle {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.75);
  padding: 12px;
  line-height: 1.8;
  transition: color 0.2s;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
}

.desktop-nav > a span,
.nav-dropdown-toggle span {
  transition: text-decoration 100ms ease;
}

.desktop-nav > a:hover,
.nav-dropdown-toggle:hover {
  color: #d7b44a;
}

.desktop-nav > a:hover span,
.nav-dropdown-toggle:hover span {
  text-decoration: underline;
  text-underline-offset: 3px;
  color: #d7b44a;
}

.desktop-nav > a.active span {
  color: #d7b44a;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* About dropdown */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-white);
  border: 1px solid rgba(0, 0, 0, 0.2);
  min-width: 20rem;
  padding: 0;
  z-index: 200;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  display: block;
}

.nav-dropdown-menu a {
  display: block;
  padding: 8px 16px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 400;
  color: var(--color-green);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-dropdown-menu a:hover {
  color: #d7b44a;
}

/* Give button */
.header-icons {
  grid-area: icons;
  display: flex;
  align-items: center;
  justify-self: start;
  padding-left: 1rem;
}

.give-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  color: white;
  background-color: #d7b44a;
  padding: 8px 40px;
  border-radius: 2px;
  text-decoration: none;
  transition: background 0.2s;
}

.give-btn:hover {
  background-color: #c4a340;
  text-decoration: none;
}

.give-btn .arrow-icon {
  transition: transform 0.2s ease;
  width: 20px;
  height: 20px;
}

.give-btn:hover .arrow-icon {
  transform: translateX(3px);
}

/* ============================================================
   2. LAYOUT: Sidebar + Main
   ============================================================ */
.layout {
  display: flex;
  min-height: calc(100vh - var(--header-height));
  background: var(--color-bg);
}

/* ----- Sidebar (shared) ----- */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--color-bg-sidebar);
  border-right: 1px solid var(--color-border);
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
  padding: 1.5rem 0;
  font-family: var(--font-sans);
  font-size: 0.82rem;
}

.sidebar::-webkit-scrollbar {
  width: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

/* ----- Main content ----- */
.main {
  flex: 1;
  min-width: 0;
  padding: 3rem 4rem;
}

/* ============================================================
   3. SIDEBAR — Home: Library Navigation
   ============================================================ */
.sidebar-title {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-light);
  padding: 0 1.25rem;
  margin-bottom: 1rem;
}

.nav-series {
  list-style: none;
}

.nav-series-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.5rem 1.25rem;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-green);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}

.nav-series-link:hover {
  background: rgba(83, 105, 66, 0.06);
}

.nav-caret {
  width: 10px;
  height: 6px;
  flex-shrink: 0;
  transition: transform 200ms ease;
}

.nav-series-link[aria-expanded="true"] .nav-caret {
  transform: rotate(180deg);
}

.nav-subseries {
  list-style: none;
  display: none;
  overflow: hidden;
}

.nav-subseries.is-expanded {
  display: block;
}

.nav-sub-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.3rem 1.25rem 0.3rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
}

.nav-sub-caret {
  width: 8px;
  height: 5px;
  flex-shrink: 0;
  transition: transform 200ms ease;
}

.nav-sub-label[aria-expanded="true"] .nav-sub-caret {
  transform: rotate(180deg);
}

.nav-sub-books {
  list-style: none;
  display: none;
  padding: 0;
  margin: 0;
}

.nav-sub-books.is-expanded {
  display: block;
}

.nav-book-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1.25rem 0.4rem 1.75rem;
  color: var(--color-text);
  transition: background 0.15s;
  font-size: 0.8rem;
}

.nav-book-item:hover {
  background: rgba(83, 105, 66, 0.04);
}

.nav-book-item.active {
  background: rgba(83, 105, 66, 0.1);
  color: var(--color-green);
  font-weight: 600;
}

.nav-thumb {
  width: 28px;
  height: 42px;
  border-radius: 2px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.55rem;
  color: var(--color-white);
  text-align: center;
  line-height: 1.1;
  padding: 2px;
}

.nav-book-name {
  font-family: var(--font-sans);
  font-size: 0.8rem;
}

/* ============================================================
   3b. SIDEBAR — Book detail: back link, cover, sessions
   ============================================================ */
.sidebar-back {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.25rem 1rem;
  font-size: 0.78rem;
  color: var(--color-text-light);
  transition: color 0.15s;
}

.sidebar-back:hover {
  color: var(--color-green);
}

.sidebar-book-info {
  text-align: center;
  padding: 0 1.25rem;
  margin-bottom: 1.25rem;
}

.sidebar-book-cover {
  width: 80px;
  height: 120px;
  border-radius: 5px;
  margin: 0 auto 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  color: var(--color-white);
  text-align: center;
  line-height: 1.2;
  padding: 0.5rem;
}

.sidebar-book-title {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}

.sidebar-book-subtitle {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--color-text-light);
}

.sidebar-sessions-title {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-light);
  padding: 0.5rem 1.25rem;
  border-top: 1px solid var(--color-border);
}

.nav-session-list {
  list-style: none;
  padding-top: 0.25rem;
}

.nav-session-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 1.25rem;
  font-size: 0.8rem;
  color: var(--color-text);
  border-left: 3px solid transparent;
  transition: background 0.15s, border-color 0.15s;
}

.nav-session-item:hover {
  background: var(--color-bg-warm);
}

.nav-session-item.active {
  border-left-color: var(--color-green);
  background: var(--color-bg-warm);
  font-weight: 600;
}

.nav-session-item .session-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  font-weight: 600;
  flex-shrink: 0;
}

.nav-session-item.active .session-num {
  background: var(--color-green);
  color: var(--color-white);
}

.nav-session-name {
  font-family: var(--font-sans);
  font-size: 0.8rem;
}

/* H2 sub-nav under active session */
.nav-h2-list {
  list-style: none;
  padding: 0.25rem 0 0.5rem 0;
  margin: 0;
}

.nav-h2-item {
  display: block;
  padding: 0.3rem 1.25rem 0.3rem 3.25rem;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 0.15s;
  line-height: 1.4;
}

.nav-h2-item:hover {
  color: var(--color-green);
}

/* ============================================================
   4. HOMEPAGE — Visual Mode (default)
   ============================================================ */
.home-header-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.page-title {
  font-family: var(--font-sans);
  font-size: 2.4rem;
  color: var(--color-charcoal);
  line-height: 1.2;
}

.page-subtitle {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 2.5rem;
}

.home-visual {
  display: block;
}

.series-section {
  margin-bottom: 3.5rem;
}

.series-header {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.25rem;
}

.series-heading {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  color: var(--color-charcoal);
}

.series-subtitle {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.subseries-label {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-green-light);
  margin-bottom: 0.5rem;
  margin-top: 0.5rem;
}

.grid-full-width {
  grid-column: 1 / -1;
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.book-card {
  display: block;
  text-decoration: none;
  color: var(--color-text);
  transition: transform 0.15s;
}

.book-card:hover {
  transform: translateY(-3px);
}

.book-cover {
  width: 100%;
  aspect-ratio: 2 / 3;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem 0.75rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--color-white);
  line-height: 1.25;
  position: relative;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.book-cover .cover-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  font-family: var(--font-sans);
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.4rem;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.9);
}

.book-cover .cover-badge.preview {
  color: #8a7340;
}

.book-cover .cover-badge.prerelease {
  color: #4a5a7a;
}

.book-card-title {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text);
  margin-top: 0.6rem;
  line-height: 1.3;
}

.book-card-sub {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--color-text-light);
  margin-top: 0.15rem;
}

/* ============================================================
   5. HOMEPAGE — View Toggle & List/Text Mode
   ============================================================ */

/* Toggle buttons */
.view-toggle {
  display: flex;
  gap: 0;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  overflow: hidden;
}

.view-toggle button,
.view-toggle .toggle-btn {
  padding: 0.4rem 0.85rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  border: none;
  background: var(--color-white);
  color: var(--color-text-light);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.view-toggle button:not(:last-child),
.view-toggle .toggle-btn:not(:last-child) {
  border-right: 1px solid var(--color-border);
}

.view-toggle button.active,
.view-toggle .toggle-btn.active {
  background: var(--color-green);
  color: var(--color-white);
}

.view-toggle button:hover:not(.active),
.view-toggle .toggle-btn:hover:not(.active) {
  background: var(--color-bg-warm);
}

/* Hide/show modes */
.home-text {
  display: none;
}

body.text-mode .home-visual {
  display: none;
}

body.text-mode .home-text {
  display: block;
}

/* List/Text mode series blocks */
.text-series-block {
  margin-bottom: 2rem;
}

.text-series-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-green);
  margin-bottom: 1rem;
}

.text-series-count {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--color-text-light);
}

.text-subseries-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1rem 0 0.6rem;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-green-light);
}

.text-subseries-title {
  white-space: nowrap;
}

.text-subseries-desc {
  font-weight: 400;
  color: var(--color-text-light);
}

.text-subseries-header::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.text-book-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.6rem 0.75rem;
  border-radius: 6px;
  transition: background 0.15s, transform 0.15s;
}

.text-book-row:hover {
  background: var(--color-white);
  transform: translateX(4px);
}

.text-book-thumb {
  width: 32px;
  height: 48px;
  border-radius: 3px;
  flex-shrink: 0;
}

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

.text-book-title {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  line-height: 1.3;
}

.text-book-subtitle {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--color-text-light);
  margin-top: 0.1rem;
}

.text-book-meta {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  color: var(--color-text-light);
  margin-top: 0.1rem;
}

.text-book-arrow {
  color: var(--color-border);
  font-size: 0.75rem;
  transition: color 0.15s;
  flex-shrink: 0;
}

.text-book-row:hover .text-book-arrow {
  color: var(--color-green);
}

/* ============================================================
   6. BOOK DETAIL PAGE
   ============================================================ */
.book-detail-top {
  margin-bottom: 2.5rem;
}

.book-detail-header {
  display: flex;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.book-detail-cover {
  width: 180px;
  min-width: 180px;
  aspect-ratio: 2 / 3;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
  font-family: var(--font-sans);
  font-size: 1.3rem;
  color: var(--color-white);
  line-height: 1.25;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  flex-shrink: 0;
}

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

.book-detail-subtitle {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 0.75rem;
}

.book-detail-meta {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-text-light);
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.meta-sep {
  color: var(--color-border);
}

/* Banner bars on book detail */
.banner-bar {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.banner-preview {
  background: #f0ebe0;
  color: #8a7340;
}

.banner-prerelease {
  background: #e8edf5;
  color: #4a5a7a;
}

/* Session list on book detail */
.book-sessions-area {
  margin-top: 1rem;
}

.sessions-heading-label {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--color-charcoal);
}

.session-list {
  list-style: none;
}

.session-list li {
  border-bottom: 1px solid var(--color-border);
}

.session-list li:first-child {
  border-top: 1px solid var(--color-border);
}

.session-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  color: var(--color-text);
  transition: color 0.15s;
}

.session-list a:hover {
  color: var(--color-green);
}

.session-num {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--color-text-light);
  min-width: 1.5rem;
}

.session-name {
  font-family: var(--font-sans);
  font-size: 1rem;
  flex: 1;
  margin-left: 0.5rem;
}

.session-arrow {
  color: var(--color-text-light);
}

/* ============================================================
   7. SESSION READING PAGE
   ============================================================ */
.reading-top {
  margin-bottom: 1.5rem;
}

.reading-content {
  max-width: 680px;
}

/* Session content typography */
.session-content h1,
.reading-content h1 {
  font-family: var(--font-sans);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-charcoal);
  margin-bottom: 1.5rem;
  line-height: 1.25;
}

.session-content h2,
.reading-content h2 {
  font-family: var(--font-sans);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-charcoal);
  margin: 2.5rem 0 1rem;
  line-height: 1.3;
  scroll-margin-top: 100px;
}

.session-content h3,
.reading-content h3 {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
}

.session-content h4,
.reading-content h4 {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  font-weight: 600;
  margin: 1.25rem 0 0.35rem;
  color: var(--color-text-light);
}

.session-content p,
.reading-content p {
  font-family: var(--font-reading);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
  margin-bottom: 1.25rem;
  color: #1a1a1a;
  text-align: justify;
  hyphens: auto;
  -webkit-hyphens: auto;
}

.session-content ul,
.reading-content ul,
.session-content ol,
.reading-content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.session-content ul,
.reading-content ul {
  list-style: disc;
}

.session-content ol,
.reading-content ol {
  list-style: decimal;
}

.session-content li,
.reading-content li {
  font-family: var(--font-reading);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: 0.01em;
  margin-bottom: 0.35rem;
  text-align: justify;
  hyphens: auto;
  -webkit-hyphens: auto;
}

/* Blockquote */
.session-content blockquote,
.reading-content blockquote {
  border-left: 3px solid var(--color-green);
  background: var(--color-bg-warm);
  padding: 0.75rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 6px 6px 0;
}

.session-content blockquote p,
.reading-content blockquote p {
  font-family: var(--font-reading);
  font-style: italic;
  font-size: 17px;
  line-height: 1.7;
  letter-spacing: 0.01em;
  margin-bottom: 0.5rem;
}

.session-content blockquote p:last-child,
.reading-content blockquote p:last-child {
  margin-bottom: 0;
}

/* Attribution */
.attribution {
  text-align: right;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-light);
  font-weight: 600;
  margin: -0.5rem 0 1.5rem;
}

/* Pullquote callout */
.pullquote {
  background: rgba(83, 105, 66, 0.07);
  border-radius: 12px;
  padding: 2rem 2.5rem 1.75rem;
  margin: 2.5rem auto;
  max-width: 88%;
  position: relative;
  text-align: center;
}

.pullquote::before {
  content: "\201C";
  display: block;
  font-size: 3.5em;
  color: var(--color-green);
  opacity: 0.35;
  font-weight: 700;
  line-height: 0.6;
  margin-bottom: 0.5rem;
}

.pullquote p {
  font-family: var(--font-reading);
  font-size: 1.2em;
  font-weight: 500;
  font-style: italic;
  line-height: 1.6;
  color: var(--color-green-dark);
  margin: 0;
}

/* Question block */
.question-block {
  border-left: 3px solid var(--color-gold);
  background: #fdfbf4;
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
  border-radius: 0 4px 4px 0;
}

.question-block p {
  font-family: var(--font-reading);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0.01em;
  margin: 0;
}

/* Common content (shared sections) */
.common-content {
  background: var(--color-bg-warm);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 1.5rem 2rem;
  margin-bottom: 2.5rem;
}

.common-content .section-tag {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-green);
  margin-bottom: 0.5rem;
}

.common-content p {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Cover images */
.book-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
  position: absolute;
  top: 0;
  left: 0;
}

.book-cover {
  position: relative;
  overflow: hidden;
}

.nav-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 2px;
}

.text-book-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 3px;
}

.sidebar-book-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 5px;
}

.sidebar-book-cover {
  overflow: hidden;
}

.book-detail-cover {
  position: relative;
  overflow: hidden;
}

.book-detail-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 6px;
  position: absolute;
  top: 0;
  left: 0;
}

/* Image placeholders */
.image-placeholder {
  background: var(--color-bg-warm);
  border: 2px dashed var(--color-border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin: 1.5rem 0;
}

/* Session prev/next nav */
.session-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.session-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  transition: border-color 0.15s, background 0.15s;
  max-width: 45%;
}

.session-nav-link:hover {
  border-color: var(--color-green);
  background: var(--color-bg-warm);
}

.session-nav-dir {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-light);
}

.session-nav-name {
  font-family: var(--font-sans);
  font-size: 0.9rem;
}

.session-nav-next {
  margin-left: auto;
  text-align: right;
}

.session-nav-placeholder {
  border: none;
}

/* ============================================================
   8. UTILITIES
   ============================================================ */

/* Badges */
.badge {
  display: inline-block;
  padding: 0.1rem 0.3rem;
  border-radius: 2px;
  font-family: var(--font-sans);
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  vertical-align: middle;
  white-space: nowrap;
}

.badge-preview {
  background: #f0ebe0;
  color: #8a7340;
}

.badge-prerelease {
  background: #e8edf5;
  color: #4a5a7a;
}

/* Breadcrumbs */
.breadcrumb {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.breadcrumb a {
  color: var(--color-green);
}

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

.breadcrumb span {
  margin: 0 0.35rem;
}

/* Error page */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  min-height: 50vh;
}

.error-title {
  font-family: var(--font-sans);
  font-size: 4rem;
  color: var(--color-green);
  margin-bottom: 0.5rem;
}

.error-message {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.error-home-link {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--color-green);
  border: 1px solid var(--color-green);
  padding: 0.5rem 1.5rem;
  border-radius: 6px;
  transition: background 0.15s, color 0.15s;
}

.error-home-link:hover {
  background: var(--color-green);
  color: var(--color-white);
}

/* ============================================================
   9. COVER COLOR CLASSES
   ============================================================ */
.cover-green {
  background: linear-gradient(135deg, #536942, #3d5030);
}

.cover-gold {
  background: linear-gradient(135deg, #c4a44e, #a08530);
}

.cover-slate {
  background: linear-gradient(135deg, #404A77, #2e3558);
}

.cover-charcoal {
  background: linear-gradient(135deg, #3a3f4d, #242833);
}

.cover-sage {
  background: linear-gradient(135deg, #7a9b6a, #5d7a4e);
}

.cover-warm {
  background: linear-gradient(135deg, #8b7355, #6b5840);
}

.cover-dark-green {
  background: linear-gradient(135deg, #2d4a2d, #1a331a);
}

/* ============================================================
   10. BIBLE
   ============================================================ */
.bible-content {
  font-family: var(--font-reading);
  font-size: 17px;
  line-height: 1.8;
  color: #1a1a1a;
}

.bible-paragraph {
  font-family: var(--font-reading);
  font-size: 17px;
  line-height: 1.8;
  color: #1a1a1a;
  margin-bottom: 1.25rem;
  text-align: justify;
  hyphens: auto;
  -webkit-hyphens: auto;
}

.bible-section-heading {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-green-dark);
  margin: 2rem 0 0.75rem;
}

.bible-verse {
  display: inline;
}

/* Bible reference links */
.bible-ref {
  color: var(--color-green);
  text-decoration: none;
  border-bottom: 1px dotted var(--color-green);
  cursor: pointer;
  transition: color 0.15s;
}

.bible-ref:hover {
  color: var(--color-green-dark);
}

/* Verse popup */
.verse-popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 500;
  display: none;
  align-items: center;
  justify-content: center;
}

.verse-popup-overlay.is-visible {
  display: flex;
}

.verse-popup {
  background: var(--color-white);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  max-width: 520px;
  width: 90%;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.verse-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.verse-popup-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-light);
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
  flex-shrink: 0;
}

.verse-popup-close:hover {
  color: var(--color-text);
}

.verse-popup-scroll {
  overflow-y: auto;
  padding: 1.5rem 2rem;
  flex: 1;
}

.verse-popup-title {
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-charcoal);
}

.verse-popup-body {
  font-family: var(--font-reading);
  font-size: 16px;
  line-height: 1.75;
  color: #1a1a1a;
}

.verse-popup-body .verse-num {
  font-family: var(--font-sans);
  font-size: 0.7em;
  font-weight: 600;
  color: var(--color-green);
  margin-right: 2px;
  vertical-align: super;
}

.verse-popup-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 0.75rem;
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.verse-popup-translation {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.verse-popup-link {
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--color-green);
  text-decoration: none;
}

.verse-popup-link:hover {
  text-decoration: underline;
}

.verse-popup-chapter {
  font-family: var(--font-sans);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-charcoal);
  margin: 2rem 0 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.verse-popup-heading {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-green-dark);
  margin: 1rem 0 0.5rem;
}

.verse-popup-body p {
  margin-bottom: 0.75rem;
}

.verse-gap {
  border-top: 1px dashed var(--color-border);
  margin: 1rem 0;
}

.verse-popup-loading {
  text-align: center;
  padding: 2rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.verse-num {
  font-family: var(--font-sans);
  font-size: 0.7em;
  font-weight: 600;
  color: var(--color-green);
  margin-right: 2px;
  vertical-align: super;
  line-height: 0;
}

/* ============================================================
   10b. FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-charcoal);
  color: rgba(255, 255, 255, 0.6);
  text-align: center;
  padding: 2rem 3rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.15s;
}

.site-footer a:hover {
  color: var(--color-white);
}

/* ============================================================
   11. MOBILE MENU DRAWER
   ============================================================ */

/* Hamburger button — hidden on desktop */
.menu-drawer-container {
  display: none;
}

.hamburger-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  color: rgb(255, 255, 255);
  cursor: pointer;
  position: relative;
}

.hamburger-btn .icon-hamburger,
.hamburger-btn .icon-close {
  width: 20px;
  height: 20px;
  position: absolute;
  transition: transform 150ms ease, opacity 150ms ease;
}

.hamburger-btn .icon-close {
  opacity: 0;
  transform: scale(0.8);
}

.hamburger-btn.is-open .icon-hamburger {
  opacity: 0;
  transform: scale(0.8);
}

.hamburger-btn.is-open .icon-close {
  opacity: 1;
  transform: scale(1);
}

/* Overlay — positioned below header */
.menu-drawer-overlay {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: calc(100vh - 100%);
  background: rgba(83, 105, 66, 0.5);
  z-index: 2;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms ease, visibility 200ms ease;
}

.menu-drawer-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

/* Drawer panel — positioned below header */
.menu-drawer {
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  height: calc(100vh - 100%);
  background-color: #ffffff;
  color: #536942;
  z-index: 3;
  transform: translateX(-100%);
  visibility: hidden;
  transition: transform 200ms ease, visibility 200ms ease;
  overflow-x: hidden;
  overflow-y: auto;
}

.menu-drawer.is-open {
  transform: translateX(0);
  visibility: visible;
}

@media screen and (min-width: 750px) {
  .menu-drawer {
    width: 400px;
    border-right: 1px solid rgba(83, 105, 66, 0.1);
  }
}

.menu-drawer__inner {
  position: relative;
  height: 100%;
}

.menu-drawer__nav {
  display: block;
  width: 100%;
  padding: 30px 0;
}

.menu-drawer__menu {
  list-style: none !important;
  padding: 0 !important;
  margin: 0 !important;
}

.menu-drawer__menu > li {
  display: block;
  margin: 0 0 2px 0;
  padding: 0;
}

.menu-drawer .menu-drawer__menu-item {
  display: block;
  width: 100%;
  padding: 11px 30px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 400;
  color: rgba(83, 105, 66, 0.75);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: color 0.2s, background-color 0.2s;
  box-sizing: border-box;
  line-height: 1.5;
}

.menu-drawer .menu-drawer__menu-item:hover,
.menu-drawer .menu-drawer__menu-item:focus,
.menu-drawer .menu-drawer__menu-item--active {
  color: rgb(83, 105, 66);
  background-color: rgba(83, 105, 66, 0.04);
}

.menu-drawer .menu-drawer__menu-item--active:hover {
  background-color: rgba(83, 105, 66, 0.08);
}

/* Submenu toggle — arrow pushed to far right via flexbox */
.menu-drawer .menu-drawer__submenu-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-right: 30px;
}

.menu-drawer__arrow {
  width: 15px;
  height: auto;
  flex-shrink: 0;
}

/* Submenu panel — slides from right */
.menu-drawer__submenu {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #ffffff;
  z-index: 1;
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 200ms ease, visibility 200ms ease;
  overflow-y: auto;
}

.menu-drawer__submenu.is-open {
  transform: translateX(0);
  visibility: visible;
}

/* Back button */
.menu-drawer__back-btn {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 12px 26px 12px 30px;
  margin-top: 15px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 400;
  color: rgba(83, 105, 66, 0.75);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  text-decoration: none;
}

.menu-drawer__back-arrow {
  width: 15px;
  margin-right: 10px;
  transform: rotate(180deg);
}

/* Body scroll lock */
body.drawer-open {
  overflow: hidden;
}

/* Mobile TOC — hidden on desktop */
.mobile-toc-bar {
  display: none;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 989px) {
  .menu-drawer-container {
    display: flex;
    align-items: center;
  }

  .desktop-nav {
    display: none;
  }

  .header-inner {
    display: flex;
    align-items: center;
    padding: 4px 30px 4px 15px;
    gap: 0;
    max-width: none;
  }

  .logo {
    grid-area: unset;
  }

  .header-icons {
    margin-left: auto;
  }

  .give-btn {
    font-size: 13px;
    padding: 6px 20px;
  }

  .mobile-toc-bar {
    display: block;
  }
}

@media (max-width: 1024px) {
  .give-btn {
    display: none;
  }
}

/* ---- Tablet (≤ 768px) ---- */
@media (max-width: 768px) {

  /* Layout: stack sidebar above main */
  .layout {
    flex-direction: column;
  }

  /* Sidebar becomes a collapsible panel */
  .sidebar {
    width: 100%;
    min-width: 100%;
    position: relative;
    top: 0;
    height: auto;
    max-height: none;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    overflow: visible;
  }

  /* Hide sidebar content by default on homepage, show toggle */
  .sidebar .nav-series {
    display: none;
  }

  .sidebar.sidebar-expanded .nav-series {
    display: block;
  }

  .sidebar .sidebar-title {
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-right: 1.25rem;
  }

  .sidebar .sidebar-title::after {
    content: '';
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--color-text-light);
    border-bottom: 2px solid var(--color-text-light);
    transform: rotate(45deg);
    transition: transform 200ms ease;
  }

  .sidebar.sidebar-expanded .sidebar-title::after {
    transform: rotate(-135deg);
  }

  /* Book/session sidebar (not homepage) — keep visible */
  .sidebar .sidebar-back,
  .sidebar .sidebar-book-info,
  .sidebar .sidebar-sessions-title,
  .sidebar .nav-session-list {
    display: block;
  }

  .main {
    padding: 1.5rem 1rem;
  }

  /* Homepage */
  .home-header-row {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }

  .page-title {
    font-size: 1.8rem;
  }

  .page-subtitle {
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
  }

  .series-heading {
    font-size: 1.25rem;
  }

  .book-grid {
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 1rem;
  }

  .book-cover {
    font-size: 0.8rem;
    padding: 0.5rem;
  }

  .book-card-title {
    font-size: 0.78rem;
  }

  /* List view mobile */
  .text-book-row {
    padding: 0.5rem;
    gap: 0.6rem;
  }

  .text-book-title {
    font-size: 0.82rem;
  }

  /* Book detail page */
  .book-detail-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
  }

  .book-detail-cover {
    width: 140px;
    min-width: 140px;
  }

  .book-detail-meta {
    justify-content: center;
  }

  .book-detail-subtitle {
    font-size: 0.9rem;
  }

  /* Session reading page */
  .reading-content {
    padding: 0;
    max-width: 100%;
  }

  .session-content h1,
  .reading-content h1 {
    font-size: 1.6rem;
  }

  .session-content h2,
  .reading-content h2 {
    font-size: 1.25rem;
  }

  .session-content p,
  .reading-content p,
  .session-content li,
  .reading-content li {
    font-size: 16px;
  }

  .pullquote {
    max-width: 100%;
    padding: 1.5rem 1.25rem 1.25rem;
    margin: 1.5rem 0 2rem;
  }

  .pullquote p {
    font-size: 1.1em;
  }

  .question-block {
    padding: 0.75rem 1rem;
  }

  .session-content blockquote,
  .reading-content blockquote {
    padding: 0.6rem 1rem;
    margin: 1rem 0;
  }

  /* Breadcrumbs */
  .breadcrumb {
    font-size: 0.72rem;
    line-height: 1.6;
  }

  /* Mobile TOC bar — fixed below header */
  .mobile-toc-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 95;
    background: var(--color-bg-warm);
    border-bottom: 1px solid var(--color-border);
    transition: transform 200ms ease;
  }

  .mobile-toc-bar.is-hidden {
    transform: translateY(-100%);
  }

  .mobile-toc-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    width: 100%;
    padding: 0.5rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-green);
    background: none;
    border: none;
    cursor: pointer;
  }

  .mobile-toc-chevron {
    transition: transform 200ms ease;
  }

  .mobile-toc-bar.is-open .mobile-toc-chevron {
    transform: rotate(180deg);
  }

  .mobile-toc-panel {
    display: none;
    padding: 0 1rem 0.75rem;
  }

  .mobile-toc-bar.is-open .mobile-toc-panel {
    display: block;
  }

  .mobile-toc-list {
    list-style: none;
    padding: 0;
    margin: 0 0 0.75rem;
  }

  .mobile-toc-list li {
    margin: 0;
  }

  .mobile-toc-link {
    display: block;
    padding: 0.4rem 0;
    font-family: var(--font-sans);
    font-size: 0.78rem;
    color: var(--color-text);
    text-decoration: none;
    border-bottom: 1px solid rgba(0,0,0,0.05);
  }

  .mobile-toc-link:hover {
    color: var(--color-green);
  }

  .mobile-toc-nav {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border);
  }

  .mobile-toc-nav-link {
    font-family: var(--font-sans);
    font-size: 0.72rem;
    color: var(--color-green);
    text-decoration: none;
  }

  .mobile-toc-nav-next {
    margin-left: auto;
  }

  /* H2 sub-nav mobile */
  .nav-h2-item {
    padding-left: 2.5rem;
    font-size: 0.7rem;
  }

  /* Session prev/next — keep side by side */
  .session-nav {
    flex-direction: row;
  }

  .session-nav-link {
    max-width: 45%;
  }

  /* Footer */
  .site-footer {
    padding: 1.5rem 1rem;
  }
}

/* ---- Small phone (≤ 480px) ---- */
@media (max-width: 480px) {
  .header-inner {
    padding: 4px 10px;
  }

  .logo-img {
    width: 110px;
  }

  .main {
    padding: 1rem 0.75rem;
  }

  .page-title {
    font-size: 1.5rem;
  }

  .book-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
  }

  .book-detail-cover {
    width: 120px;
    min-width: 120px;
  }

  .session-content p,
  .reading-content p,
  .session-content li,
  .reading-content li {
    font-size: 15px;
  }

  .pullquote {
    padding: 1.25rem 1rem 1rem;
  }

  .pullquote p {
    font-size: 1.05em;
  }
}