/* =====================================================
   بُنْيَان ـ Inner Pages Stylesheet
   Shared styles for book, frameworks, author, courses,
   blog, support, contact pages
   ===================================================== */

/* ===== PAGE HEADER ===== */
.page-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: var(--space-xl) 0 var(--space-lg);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(193, 154, 79, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(193, 154, 79, 0.1) 0%, transparent 50%);
}

.page-header::after {
  content: '۞';
  position: absolute;
  top: 50%;
  left: 8%;
  transform: translateY(-50%);
  font-size: 8rem;
  color: rgba(193, 154, 79, 0.08);
  pointer-events: none;
}

.page-header-content {
  position: relative;
  z-index: 2;
}

.page-eyebrow {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-light);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.page-header h1 {
  font-family: var(--font-arabic-display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  color: white;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.page-lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.85);
  max-width: 700px;
  margin: 0 auto;
  line-height: 1.9;
}

/* ===== BOOK SHOWCASE ===== */
.book-showcase {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-xl);
  align-items: center;
  margin: var(--space-lg) 0;
}

.book-cover-display {
  display: flex;
  justify-content: center;
  perspective: 1500px;
}

.book-3d {
  transform: rotateY(-15deg) rotateX(2deg);
  transition: transform 0.6s ease;
}

.book-3d:hover {
  transform: rotateY(0deg) rotateX(0deg) scale(1.02);
}

.book-cover {
  width: 320px;
  height: 460px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 8px 4px 4px 8px;
  box-shadow:
    var(--shadow-lg),
    -8px 0 12px rgba(0, 0, 0, 0.15),
    inset 4px 0 6px rgba(0, 0, 0, 0.2);
  padding: 2.5rem 1.8rem;
  color: white;
  position: relative;
  overflow: hidden;
}

.book-cover::before {
  content: '';
  position: absolute;
  inset: 12px;
  border: 2px solid rgba(193, 154, 79, 0.4);
  border-radius: 4px;
  pointer-events: none;
}

.book-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 50% 50%, rgba(193, 154, 79, 0.08) 0%, transparent 70%);
}

.book-cover-inner {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.cover-ornament-top {
  font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.book-cover h2 {
  font-family: var(--font-arabic-display);
  font-size: 3.2rem;
  font-weight: 700;
  color: var(--accent-light);
  margin: 0.5rem 0;
  letter-spacing: 0.05em;
}

.cover-subtitle {
  font-size: 1.05rem;
  font-weight: 600;
  color: white;
  margin: 0.5rem 0 1rem;
  line-height: 1.5;
}

.cover-perspective {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--accent-light);
  line-height: 1.6;
  margin-bottom: auto;
}

.cover-author {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid rgba(193, 154, 79, 0.3);
  width: 100%;
}

.cover-author p {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.3rem;
}

.cover-author h4 {
  font-family: var(--font-arabic-display);
  font-size: 1rem;
  font-weight: 700;
  color: white;
  margin: 0.3rem 0;
}

.cover-creds {
  font-family: var(--font-latin);
  font-size: 0.7rem !important;
  color: var(--accent-light) !important;
  letter-spacing: 0.03em;
}

.cover-ornament-bottom {
  color: var(--accent);
  font-size: 1rem;
  margin-top: 0.8rem;
}

/* Book info on right side */
.book-meta {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: var(--primary-faint);
  color: var(--primary);
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
}

.badge-gold {
  background: var(--accent-faint);
  color: var(--accent-dark);
}

.book-title {
  font-family: var(--font-arabic-display);
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1.2rem;
  line-height: 1.3;
}

.book-description {
  font-size: 1.05rem;
  color: var(--text);
  line-height: 2;
  margin-bottom: 1.2rem;
}

.book-specs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 0.8rem;
  margin: var(--space-md) 0;
  padding: 1.2rem;
  background: var(--bg-paper);
  border-radius: 14px;
  border: 1px solid rgba(193, 154, 79, 0.15);
}

.spec {
  text-align: center;
}

.spec-number {
  display: block;
  font-family: var(--font-latin);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
}

.spec-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

.book-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: var(--space-md);
}

/* ===== TABLE OF CONTENTS ===== */
.section-toc {
  background: var(--bg-paper);
}

.parts-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.part-card {
  background: white;
  padding: var(--space-md);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--accent);
  transition: all var(--transition);
  position: relative;
}

.part-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-top-color: var(--primary);
}

.part-card-final {
  background: linear-gradient(135deg, var(--bg-cream) 0%, var(--accent-faint) 100%);
}

.part-number {
  display: inline-block;
  font-family: var(--font-arabic);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-dark);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.part-card h3 {
  font-family: var(--font-arabic-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.part-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 1rem;
  line-height: 1.7;
}

.chapters {
  list-style: none;
  padding: 0;
}

.chapters li {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.5rem 0;
  font-size: 0.95rem;
  color: var(--text);
  border-bottom: 1px solid rgba(193, 154, 79, 0.1);
}

.chapters li:last-child { border-bottom: none; }

.chapters li span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--primary-faint);
  color: var(--primary);
  border-radius: 50%;
  font-family: var(--font-latin);
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}

/* ===== EXCERPT ===== */
.section-excerpt {
  background: linear-gradient(180deg, var(--bg-cream) 0%, var(--bg-cream-deep) 100%);
}

.excerpt-card {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-md);
  background: white;
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  text-align: center;
  position: relative;
  border: 1px solid rgba(193, 154, 79, 0.2);
}

.excerpt-mark {
  font-family: var(--font-latin);
  font-size: 5rem;
  color: var(--accent);
  opacity: 0.3;
  line-height: 0.5;
  display: block;
  margin-bottom: 1rem;
}

.excerpt-text {
  font-family: var(--font-arabic-display);
  font-size: clamp(1.1rem, 2.2vw, 1.4rem);
  line-height: 2;
  color: var(--text);
  font-style: italic;
  margin-bottom: 1.5rem;
}

.excerpt-card cite {
  display: block;
  font-style: normal;
  font-size: 0.95rem;
  color: var(--accent-dark);
  font-weight: 700;
}

/* ===== FRAMEWORK DETAILED CARDS ===== */
.framework-detail {
  background: white;
  padding: var(--space-lg);
  border-radius: 20px;
  margin-bottom: var(--space-md);
  box-shadow: var(--shadow-sm);
  border-right: 5px solid var(--accent);
  transition: all var(--transition);
}

.framework-detail:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(-4px);
  border-right-color: var(--primary);
}

.framework-detail-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid var(--bg-paper);
}

.framework-detail-code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: white;
  font-family: var(--font-latin);
  font-size: 1.5rem;
  font-weight: 700;
  padding: 0.8rem 1.5rem;
  border-radius: 12px;
  letter-spacing: 0.05em;
  min-width: 90px;
  text-align: center;
}

.framework-detail h2 {
  font-family: var(--font-arabic-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.3rem;
}

.framework-detail-subtitle {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.95rem;
}

.framework-detail p {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--text);
  margin-bottom: 1rem;
}

.framework-key-points {
  background: var(--bg-paper);
  padding: 1.5rem;
  border-radius: 12px;
  margin: 1.5rem 0;
}

.framework-key-points h4 {
  font-family: var(--font-arabic-display);
  color: var(--primary);
  margin-bottom: 0.8rem;
  font-size: 1.15rem;
}

.framework-key-points ul {
  list-style: none;
  padding: 0;
}

.framework-key-points li {
  padding: 0.5rem 0;
  padding-right: 1.8rem;
  position: relative;
  line-height: 1.8;
}

.framework-key-points li::before {
  content: '◆';
  position: absolute;
  right: 0;
  top: 0.6rem;
  color: var(--accent);
  font-size: 0.8rem;
}

/* ===== AUTHOR PAGE ===== */
.author-hero {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-lg);
  align-items: center;
  margin: var(--space-lg) 0;
}

.author-photo-placeholder {
  width: 100%;
  max-width: 350px;
  aspect-ratio: 1;
  margin: 0 auto;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: var(--shadow-lg);
  border: 8px solid white;
}

.author-photo-placeholder::before {
  content: '';
  position: absolute;
  inset: -16px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  opacity: 0.4;
}

.author-photo-placeholder span {
  font-family: var(--font-arabic-display);
  font-size: 6rem;
  color: var(--accent);
}

.author-detail-bio h2 {
  font-family: var(--font-arabic-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.author-title-line {
  font-size: 1.15rem;
  color: var(--accent-dark);
  font-style: italic;
  margin-bottom: 1.5rem;
}

.author-detail-bio p {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--text);
  margin-bottom: 1.2rem;
}

/* Experience timeline */
.experience-section {
  background: var(--bg-paper);
  padding: var(--space-lg) 0;
}

.timeline {
  max-width: 800px;
  margin: var(--space-md) auto 0;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  right: 30px;
  width: 2px;
  background: var(--accent);
}

.timeline-item {
  position: relative;
  padding-right: 70px;
  margin-bottom: var(--space-md);
}

.timeline-item::before {
  content: '';
  position: absolute;
  right: 22px;
  top: 8px;
  width: 18px;
  height: 18px;
  background: var(--accent);
  border: 4px solid var(--bg-paper);
  border-radius: 50%;
  z-index: 2;
}

.timeline-year {
  font-family: var(--font-latin);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-dark);
  margin-bottom: 0.3rem;
}

.timeline-item h4 {
  font-family: var(--font-arabic-display);
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 0.4rem;
}

.timeline-item p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===== COURSES PAGE ===== */
.course-card {
  background: white;
  padding: var(--space-md);
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--space-md);
  border-top: 5px solid var(--accent);
  position: relative;
  overflow: hidden;
}

.course-card-soon {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  background: var(--accent);
  color: white;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
}

.course-card h3 {
  font-family: var(--font-arabic-display);
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.course-card-level {
  display: inline-block;
  background: var(--primary-faint);
  color: var(--primary);
  padding: 0.3rem 0.8rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.course-card-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 1.2rem 0;
  padding: 1.2rem;
  background: var(--bg-paper);
  border-radius: 12px;
}

.course-feature {
  text-align: center;
}

.course-feature-icon {
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 0.3rem;
}

.course-feature-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.course-feature-value {
  display: block;
  font-weight: 700;
  color: var(--primary);
  font-size: 1rem;
  margin-top: 0.2rem;
}

/* ===== BLOG PAGE ===== */
.blog-filter {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin: var(--space-md) 0;
}

.filter-btn {
  background: white;
  border: 1px solid rgba(193, 154, 79, 0.3);
  padding: 0.5rem 1.2rem;
  border-radius: 999px;
  font-family: var(--font-arabic);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.blog-post {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.blog-post:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.blog-post-image {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 3rem;
}

.blog-post-image::after {
  content: '';
  position: absolute;
  inset: 12px;
  border: 2px solid rgba(193, 154, 79, 0.3);
  border-radius: 8px;
}

.blog-post-body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.blog-post-category {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent-dark);
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.blog-post h3 {
  font-family: var(--font-arabic-display);
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 0.7rem;
  line-height: 1.4;
}

.blog-post p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
  flex: 1;
  margin-bottom: 1rem;
}

.blog-post-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid var(--bg-paper);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.blog-read-more {
  color: var(--accent-dark);
  font-weight: 700;
}

/* ===== SUPPORT PAGE ===== */
.support-hero {
  text-align: center;
  max-width: 800px;
  margin: var(--space-md) auto var(--space-lg);
}

.support-amount-display {
  display: inline-block;
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  border-radius: 24px;
  margin: var(--space-md) 0;
  box-shadow: var(--shadow-lg);
}

.support-amount-display .amount {
  font-family: var(--font-latin);
  font-size: 4rem;
  font-weight: 600;
  color: var(--accent-light);
  display: block;
  line-height: 1;
}

.support-amount-display .currency {
  font-family: var(--font-latin);
  font-size: 1.2rem;
  color: var(--accent-light);
  display: block;
  margin-top: 0.5rem;
}

.support-amount-display .description {
  margin-top: 0.8rem;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
}

.budget-table {
  background: white;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(193, 154, 79, 0.15);
  margin: var(--space-md) 0;
}

.budget-table table {
  width: 100%;
  border-collapse: collapse;
}

.budget-table th,
.budget-table td {
  padding: 1rem 1.5rem;
  text-align: right;
  border-bottom: 1px solid var(--bg-paper);
}

.budget-table th {
  background: var(--primary);
  color: white;
  font-family: var(--font-arabic-display);
  font-weight: 700;
}

.budget-table tr:last-child td {
  border-bottom: none;
  background: var(--bg-cream-deep);
  font-weight: 700;
  color: var(--primary);
}

.budget-table td:last-child {
  font-family: var(--font-latin);
  font-weight: 600;
  color: var(--accent-dark);
  text-align: left;
}

.phase-card {
  background: white;
  padding: var(--space-md);
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
  border-right: 6px solid var(--accent);
  margin-bottom: var(--space-md);
}

.phase-card-header {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1rem;
}

.phase-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  background: var(--primary);
  color: white;
  font-family: var(--font-latin);
  font-size: 1.8rem;
  font-weight: 700;
  border-radius: 50%;
}

.phase-card h3 {
  font-family: var(--font-arabic-display);
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 0.2rem;
}

.phase-subtitle {
  color: var(--text-muted);
  font-style: italic;
}

/* ===== CONTACT PAGE ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-lg);
  margin: var(--space-md) 0;
}

.contact-info-card {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  padding: var(--space-lg);
  border-radius: 20px;
  position: relative;
  overflow: hidden;
}

.contact-info-card::before {
  content: '۞';
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-size: 4rem;
  color: rgba(193, 154, 79, 0.15);
}

.contact-info-card h3 {
  font-family: var(--font-arabic-display);
  font-size: 1.6rem;
  color: var(--accent-light);
  margin-bottom: 1.5rem;
}

.contact-info-list {
  list-style: none;
  padding: 0;
}

.contact-info-list li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(193, 154, 79, 0.2);
}

.contact-info-list li:last-child { border-bottom: none; }

.contact-icon {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.contact-info-list .label {
  display: block;
  font-size: 0.82rem;
  color: var(--accent-light);
  margin-bottom: 0.2rem;
}

.contact-info-list .value {
  display: block;
  font-size: 1rem;
  color: white;
}

.contact-form {
  background: white;
  padding: var(--space-md);
  border-radius: 20px;
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(193, 154, 79, 0.15);
}

.contact-form h3 {
  font-family: var(--font-arabic-display);
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--bg-paper);
  border: 1px solid rgba(193, 154, 79, 0.3);
  border-radius: 10px;
  font-family: var(--font-arabic);
  font-size: 1rem;
  color: var(--text);
  transition: all var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  background: white;
  box-shadow: 0 0 0 4px rgba(193, 154, 79, 0.1);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
  font-family: var(--font-arabic);
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: 1rem;
  padding: 0.8rem;
  background: var(--accent-faint);
  border-radius: 8px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .book-showcase,
  .author-hero,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .book-3d { transform: none; }
  .book-cover { width: 280px; height: 400px; margin: 0 auto; }
}

@media (max-width: 600px) {
  .timeline { padding-right: 1rem; }
  .timeline::before { right: 18px; }
  .timeline-item { padding-right: 50px; }
  .timeline-item::before { right: 10px; width: 14px; height: 14px; }
  .framework-detail-header { flex-direction: column; align-items: flex-start; gap: 0.8rem; }
  .book-cover { width: 240px; height: 340px; padding: 1.8rem 1.2rem; }
  .book-cover h2 { font-size: 2.5rem; }
}