/* ==========================================================================
   عالم التلوين للأطفال - ملف الأنماط والتصميم (ColorBook Studio CSS)
   RTL First • Warm Editorial Paper Tone • Impeccable Design Standards
   ========================================================================== */

:root {
  /* ألوان الخلفيات والورق */
  --paper-ground: #FDFBF7;
  --paper-cream: #FAF6EE;
  --paper-card: #FFFFFF;
  --paper-border: #EBE4D5;
  --paper-border-dark: #D4C7AE;
  
  /* ألوان الحبر والنصوص */
  --ink-primary: #1E293B;
  --ink-body: #334155;
  --ink-muted: #64748B;
  --ink-faint: #94A3B8;

  /* درجات التلوين والهوية */
  --color-amber-primary: #D97706;
  --color-amber-hover: #B45309;
  --color-amber-light: #FEF3C7;
  --color-amber-border: #FCD34D;
  
  --color-terracotta: #C2410C;
  --color-emerald: #15803D;
  --color-blue: #0284C7;
  --color-purple: #7E22CE;

  /* خطوط وقياسات */
  --font-display: 'Cairo', system-ui, -apple-system, sans-serif;
  --font-body: 'Tajawal', system-ui, -apple-system, sans-serif;

  /* زوايا وظلال */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 30px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 3px rgba(30, 41, 59, 0.05);
  --shadow-sm: 0 4px 10px -2px rgba(30, 41, 59, 0.06);
  --shadow-md: 0 12px 24px -6px rgba(30, 41, 59, 0.08);
  --shadow-lg: 0 20px 40px -10px rgba(30, 41, 59, 0.12);
  --shadow-book: 0 15px 35px -5px rgba(30, 41, 59, 0.15), 0 5px 15px rgba(30, 41, 59, 0.05);
}

/* ضبط الأساسيات والتهيئة */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--paper-ground);
  color: var(--ink-body);
  line-height: 1.7;
  direction: rtl;
  text-align: right;
  overflow-x: hidden;
}

/* العناوين والطباعة */
h1, h2, h3, h4, h5, .logo-title, .btn {
  font-family: var(--font-display);
  color: var(--ink-primary);
  line-height: 1.3;
}

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

/* الحاوية المركزية */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* الأزرار اللمسية والتفاعلية */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  cursor: pointer;
  border-radius: var(--radius-md);
  border: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.96);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

.btn-md {
  padding: 10px 20px;
  font-size: 0.95rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
}

.btn-primary {
  background: linear-gradient(135deg, #F59E0B, #D97706);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.25);
  border-bottom: 3px solid #B45309;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #FBBF24, #D97706);
  box-shadow: 0 6px 16px rgba(217, 119, 6, 0.35);
}

.btn-dark {
  background: #0F172A;
  color: #FFFFFF;
  border-bottom: 3px solid #020617;
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.2);
}
.btn-dark:hover {
  background: #1E293B;
}

.btn-outline {
  background: #FFFFFF;
  color: var(--ink-primary);
  border: 2px solid var(--paper-border-dark);
}
.btn-outline:hover {
  background: var(--paper-cream);
  border-color: var(--color-amber-primary);
  color: var(--color-amber-primary);
}

.btn-white {
  background: #FFFFFF;
  color: var(--color-amber-primary);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}
.btn-white:hover {
  background: #FEF3C7;
}

.btn-translucent {
  background: rgba(255, 255, 255, 0.15);
  color: #FFFFFF;
  border: 2px solid rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(8px);
}
.btn-translucent:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* ==========================================================================
   الترويسة (Header)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(253, 251, 247, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--paper-border);
  height: 80px;
  display: flex;
  align-items: center;
  transition: height 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
              background 0.3s ease, 
              box-shadow 0.3s ease, 
              border-color 0.3s ease;
}

.site-header.is-scrolled {
  height: 68px;
  background: rgba(253, 251, 247, 0.98);
  box-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.08);
  border-bottom-color: rgba(226, 232, 240, 0.9);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #FBBF24, #EA580C);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  box-shadow: var(--shadow-xs);
  transition: transform 0.2s ease;
}
.logo-link:hover .logo-icon {
  transform: scale(1.08) rotate(5deg);
}

.logo-title {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.logo-title .highlight {
  color: var(--color-amber-primary);
}

.logo-en {
  display: inline-flex;
  align-items: center;
  font-family: 'Tajawal', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.4px;
  color: var(--color-amber-dark);
  background: #FEF3C7;
  border: 1px solid #FDE68A;
  padding: 2px 9px;
  border-radius: var(--radius-sm);
  direction: ltr;
}

.logo-en-dark {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #FDE047;
}

.logo-subtitle {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink-muted);
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  position: relative;
  font-weight: 700;
  font-size: 0.925rem;
  color: var(--ink-body);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  text-decoration: none;
}

.nav-link:hover {
  color: var(--color-amber-primary);
  background: rgba(217, 119, 6, 0.06);
}

.nav-link.active {
  color: var(--color-amber-primary);
  background: rgba(217, 119, 6, 0.1);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  right: 50%;
  transform: translateX(50%) scaleX(0);
  width: 18px;
  height: 2.5px;
  background: var(--color-amber-primary);
  border-radius: 2px;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link.active::after {
  transform: translateX(50%) scaleX(1);
}

/* قائمة الأقسام المنسدلة للترويسة (Header Nav Dropdown) */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: none;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.925rem;
  color: var(--ink-body);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.nav-dropdown-btn:hover,
.nav-dropdown:hover .nav-dropdown-btn,
.nav-dropdown-btn.active {
  color: var(--color-amber-primary);
  background: rgba(217, 119, 6, 0.08);
}

.nav-dropdown-btn.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  right: 50%;
  transform: translateX(50%);
  width: 18px;
  height: 2.5px;
  background: var(--color-amber-primary);
  border-radius: 2px;
}

.nav-dropdown-chevron {
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--ink-muted);
  display: inline-flex;
  align-items: center;
}

.nav-dropdown:hover .nav-dropdown-chevron,
.nav-dropdown-menu.show ~ .nav-dropdown-btn .nav-dropdown-chevron {
  transform: rotate(180deg);
  color: var(--color-amber-primary);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 330px;
  background: #FFFFFF;
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-xl);
  box-shadow: 0 15px 35px -5px rgba(15, 23, 42, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.03);
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 120;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu,
.nav-dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-header-label {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--ink-muted);
  padding: 6px 12px 4px;
  border-bottom: 1px solid var(--paper-border);
  margin-bottom: 4px;
}

.dropdown-card-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all 0.18s ease;
  border: 1px solid transparent;
}

.dropdown-card-item:hover {
  background: #FEF3C7;
  border-color: #FDE68A;
  transform: translateX(-3px);
}

.dropdown-card-item.active {
  background: #FEF3C7;
  border-color: #FCD34D;
}

.dropdown-card-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: #F8FAFC;
  border: 1px solid var(--paper-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-amber-primary);
  flex-shrink: 0;
  transition: all 0.18s ease;
}

.dropdown-card-item:hover .dropdown-card-icon {
  background: #FFFFFF;
  border-color: var(--color-amber-primary);
  transform: scale(1.08);
}

.dropdown-card-content {
  flex: 1;
  min-width: 0;
}

.dropdown-card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.dropdown-card-title {
  font-weight: 800;
  font-size: 0.875rem;
  color: var(--ink-primary);
  line-height: 1.3;
}

.dropdown-card-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: #F1F5F9;
  color: var(--ink-muted);
  white-space: nowrap;
}

.dropdown-card-item:hover .dropdown-card-badge {
  background: #FDE68A;
  color: #92400E;
}

.dropdown-card-sub {
  display: block;
  font-size: 0.74rem;
  color: var(--ink-muted);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dropdown-footer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  margin-top: 4px;
  border-top: 1px dashed var(--paper-border);
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--color-amber-dark);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background 0.2s ease;
}

.dropdown-footer-link:hover {
  background: #FEF3C7;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 42px;
  height: 42px;
  gap: 5px;
  background: #FFFFFF;
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  padding: 8px;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-xs);
}

.menu-toggle:hover {
  background: var(--paper-cream);
  border-color: var(--color-amber-primary);
}

.menu-toggle .bar {
  display: block;
  width: 22px;
  height: 2.2px;
  background: var(--ink-primary);
  border-radius: 2px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

.menu-toggle.active .bar-1 {
  transform: translateY(7.2px) rotate(45deg);
  background: var(--color-amber-primary);
}
.menu-toggle.active .bar-2 {
  opacity: 0;
  transform: scaleX(0);
}
.menu-toggle.active .bar-3 {
  transform: translateY(-7.2px) rotate(-45deg);
  background: var(--color-amber-primary);
}

/* القائمة المنزلقة للجوال (Mobile Drawer) */
.mobile-nav-drawer {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 2px solid var(--paper-border);
  box-shadow: 0 15px 30px -5px rgba(15, 23, 42, 0.12);
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.35s ease;
  z-index: 99;
}

.mobile-nav-drawer.active {
  max-height: 85vh;
  overflow-y: auto;
  padding: 16px 20px 28px;
}

.mobile-nav-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink-body);
  background: #F8FAFC;
  border-radius: var(--radius-md);
  border: 1px solid var(--paper-border);
  transition: all 0.2s ease;
  text-decoration: none;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: #FEF3C7;
  color: var(--color-amber-dark);
  border-color: #FCD34D;
}

.mobile-nav-link .nav-arrow {
  color: var(--ink-muted);
  font-size: 1.1rem;
  transition: transform 0.2s ease;
}

.mobile-nav-link:hover .nav-arrow {
  transform: translateX(-4px);
  color: var(--color-amber-primary);
}

/* مجموعات صفحات الهبوط داخل قائمة الجوال */
.mobile-nav-group {
  margin: 6px 0;
  padding: 12px;
  background: #F8FAFC;
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-group-title {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--color-amber-dark);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--paper-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-sub-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  text-decoration: none;
  background: #FFFFFF;
  border: 1px solid var(--paper-border);
  color: var(--ink-body);
  transition: all 0.18s ease;
}

.mobile-sub-link:hover,
.mobile-sub-link.active {
  background: #FEF3C7;
  border-color: #FCD34D;
  color: var(--color-amber-dark);
}

.mobile-sub-link-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mobile-sub-icon {
  color: var(--color-amber-primary);
  display: flex;
  align-items: center;
}

.mobile-sub-title {
  font-size: 0.9rem;
  font-weight: 700;
}

.mobile-sub-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: #F1F5F9;
  color: var(--ink-muted);
}

.mobile-sub-link:hover .mobile-sub-badge,
.mobile-sub-link.active .mobile-sub-badge {
  background: #FDE68A;
  color: #92400E;
}

.mobile-drawer-cta {
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px dashed var(--paper-border);
}

/* زر العودة للأعلى العائم (Floating Back to Top Button) */
.back-to-top-btn {
  position: fixed;
  bottom: 24px;
  left: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #0F172A;
  color: #FFFFFF;
  border: 2px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.35);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px) scale(0.85);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.back-to-top-btn.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.back-to-top-btn:hover {
  background: var(--color-amber-primary);
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 15px 30px -5px rgba(217, 119, 6, 0.45);
}

/* ==========================================================================
   القسم الرئيسي (Hero Section)
   ========================================================================== */
.hero-section {
  padding: 60px 0 90px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #FEF3C7;
  border: 1px solid #FDE68A;
  color: #92400E;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: #D97706;
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 900;
  line-height: 1.22;
  margin-bottom: 20px;
}

.highlight-underline {
  color: var(--color-amber-primary);
  position: relative;
  display: inline-block;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--ink-muted);
  line-height: 1.8;
  margin-bottom: 30px;
  max-width: 620px;
}

.trust-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 34px;
}

.trust-card {
  background: #FFFFFF;
  border: 1px solid var(--paper-border);
  padding: 14px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-xs);
}

.trust-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.trust-card strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--ink-primary);
}

.trust-card span {
  display: block;
  font-size: 0.725rem;
  color: var(--ink-muted);
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* مجسم الكتاب التفاعلي في القسم الرئيسي */
.hero-visual {
  display: flex;
  justify-content: center;
}

.interactive-book-card {
  position: relative;
  width: 100%;
  max-width: 380px;
  aspect-ratio: 3 / 4;
  background: #FFFFFF;
  border-radius: var(--radius-xl);
  border: 4px solid var(--paper-border-dark);
  box-shadow: var(--shadow-book);
  padding: 30px 24px;
  display: flex;
  flex-col: column;
  justify-content: space-between;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  overflow: hidden;
}

.interactive-book-card:hover {
  transform: translateY(-8px) rotate(-1deg);
  box-shadow: var(--shadow-lg);
}

.book-spine {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 14px;
  background: linear-gradient(to left, rgba(217, 119, 6, 0.25), transparent);
  pointer-events: none;
}

.book-top-tag {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: #92400E;
  background: #FEF3C7;
  padding: 5px 12px;
  border-radius: var(--radius-full);
}

.book-cover-art {
  text-align: center;
  margin: auto 0;
}

.book-art-frame {
  width: 170px;
  height: 170px;
  margin: 0 auto 16px;
  background: #FFFBEB;
  border: 2px solid #FDE68A;
  border-radius: var(--radius-lg);
  padding: 12px;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.04);
}

.cover-svg {
  width: 100%;
  height: 100%;
}

.book-cover-title {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--ink-primary);
  margin-bottom: 4px;
}

.book-cover-sub {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
}

.book-footer-cta {
  border-top: 1px solid var(--paper-border);
  padding-top: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.825rem;
  font-weight: 800;
  color: var(--color-amber-primary);
}

/* ==========================================================================
   مكتبة الكتب (Catalog Section)
   ========================================================================== */
.catalog-section {
  padding: 80px 0;
  background: var(--paper-cream);
  border-top: 1px solid var(--paper-border);
  border-bottom: 1px solid var(--paper-border);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 40px;
}

.section-badge {
  display: inline-block;
  padding: 4px 14px;
  background: #FEF3C7;
  border: 1px solid #FCD34D;
  color: #92400E;
  font-size: 0.775rem;
  font-weight: 800;
  border-radius: var(--radius-full);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.3rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--ink-muted);
}

.filters-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 50px;
}

.age-tabs {
  display: flex;
  gap: 8px;
  background: #FFFFFF;
  padding: 6px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--paper-border);
  box-shadow: var(--shadow-xs);
  overflow-x: auto;
  max-width: 100%;
}

.filter-tab {
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  border: none;
  background: transparent;
  color: var(--ink-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.filter-tab.active {
  background: var(--color-amber-primary);
  color: #FFFFFF;
  box-shadow: var(--shadow-xs);
}

.theme-chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  max-width: 100%;
  padding-bottom: 6px;
}

.theme-chip {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 0.825rem;
  font-weight: 700;
  border: 1px solid var(--paper-border);
  background: #FFFFFF;
  color: var(--ink-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.theme-chip.active {
  background: #0F172A;
  color: #FFFFFF;
  border-color: #0F172A;
}

/* شبكة بطاقات الكتب */
.books-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.book-card {
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-xl);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.book-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-amber-border);
}

.card-top-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.age-badge {
  padding: 4px 10px;
  background: #FFFBEB;
  border: 1px solid #FDE68A;
  color: #92400E;
  font-size: 0.75rem;
  font-weight: 800;
  border-radius: var(--radius-sm);
}

.page-count-badge {
  font-size: 0.775rem;
  font-weight: 700;
  color: var(--ink-muted);
}

.book-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.book-subtitle {
  font-size: 0.875rem;
  color: var(--ink-muted);
  line-height: 1.6;
  margin-bottom: 12px;
  min-height: 42px;
}

.book-rating {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.rating-stars {
  color: #F59E0B;
}

.card-preview-window {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #FFFBEB, #FEF3C7);
  border: 2px solid #FDE68A;
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-bottom: 18px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.card-preview-window:hover {
  transform: scale(1.02);
  border-color: var(--color-amber-primary);
}

.card-preview-svg {
  width: 110px;
  height: 110px;
  margin: 0 auto 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-preview-svg svg {
  width: 100%;
  height: 100%;
  max-height: 110px;
}

.card-emoji {
  font-size: 3.2rem;
  margin-bottom: 6px;
}

.preview-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #FFFFFF;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-amber-primary);
  box-shadow: var(--shadow-xs);
}

.book-highlights-list {
  list-style: none;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.book-highlights-list li {
  font-size: 0.775rem;
  font-weight: 600;
  color: var(--ink-body);
  display: flex;
  align-items: center;
  gap: 6px;
}
.book-highlights-list li span.check-icon {
  color: var(--color-emerald);
  font-weight: 900;
}

.card-actions-wrapper {
  border-top: 1px solid var(--paper-border);
  padding-top: 16px;
}

.card-prices {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-muted);
  margin-bottom: 12px;
}
.card-prices strong {
  color: var(--color-amber-primary);
}

.card-buttons-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

/* ==========================================================================
   قسم النماذج المجانية للطباعة (Sampler Section)
   ========================================================================== */
.sampler-section {
  padding: 90px 0;
}

.sampler-banner {
  background: linear-gradient(135deg, #D97706, #EA580C);
  border-radius: var(--radius-xl);
  padding: 60px;
  color: #FFFFFF;
  box-shadow: var(--shadow-lg);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.sampler-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.35);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 0.825rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.sampler-title {
  font-size: 2.2rem;
  font-weight: 900;
  color: #FFFFFF;
  line-height: 1.3;
  margin-bottom: 16px;
}

.sampler-desc {
  font-size: 1.05rem;
  color: #FEF3C7;
  line-height: 1.8;
  margin-bottom: 24px;
}

.sampler-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 30px;
}

.sampler-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.sampler-cards-preview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.sample-mini-card {
  background: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
  color: var(--ink-primary);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease;
}
.sample-mini-card:hover {
  transform: translateY(-4px);
}

.mini-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 10px;
  border-radius: var(--radius-sm);
  background: #FFFBEB;
  color: var(--color-amber-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #FDE68A;
  transition: transform 0.2s ease;
}
.sample-mini-card:hover .mini-icon {
  transform: scale(1.1);
}

.mini-emoji {
  font-size: 2rem;
  margin-bottom: 6px;
}
.sample-mini-card strong {
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
  margin-bottom: 2px;
}
.sample-mini-card span {
  display: block;
  font-size: 0.675rem;
  font-weight: 700;
  color: var(--color-amber-primary);
}

/* ==========================================================================
   قسم النصائح ودليل الأهل (Tips Section)
   ========================================================================== */
.tips-section {
  padding: 80px 0;
  background: var(--paper-cream);
  border-top: 1px solid var(--paper-border);
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 50px;
}

.tip-card {
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-xs);
}

.tip-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: #FEF3C7;
  color: var(--color-amber-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  border: 1px solid #FDE68A;
}

.tip-title {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.tip-text {
  font-size: 0.925rem;
  color: var(--ink-muted);
  line-height: 1.7;
}

.tip-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--ink-body);
}

.testimonial-box {
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-xl);
  padding: 36px;
  display: flex;
  align-items: center;
  gap: 28px;
  box-shadow: var(--shadow-sm);
  max-width: 900px;
  margin: 0 auto;
}

.testimonial-avatar {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: #FEF3C7;
  color: #92400E;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 800;
  flex-shrink: 0;
  border: 2px solid #FDE68A;
}

.testimonial-quote {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink-body);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: 12px;
}

.testimonial-author strong {
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--ink-primary);
  margin-left: 8px;
}
.testimonial-author span {
  font-size: 0.8rem;
  color: var(--ink-muted);
}

/* ==========================================================================
   نافذة المعاينة التفاعلية "تصفح من الداخل" (Modal)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--paper-cream);
  width: 100%;
  max-width: 820px;
  max-height: 92vh;
  border-radius: var(--radius-xl);
  border: 4px solid var(--paper-border-dark);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform 0.25s ease;
}

.modal-overlay.active .modal-container {
  transform: scale(1);
}

.modal-header {
  background: #FFFFFF;
  padding: 16px 24px;
  border-bottom: 1px solid var(--paper-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-book-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.modal-book-badge {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: #FFFBEB;
  color: var(--color-amber-primary);
  border: 1px solid #FDE68A;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.modal-emoji {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: #FEF3C7;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 800;
}

.modal-meta {
  font-size: 0.775rem;
  color: var(--ink-muted);
}

.modal-close {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: #F1F5F9;
  border: none;
  font-size: 1.2rem;
  color: var(--ink-body);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}
.modal-close:hover {
  background: #E2E8F0;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

/* محاكاة صفحة الكتاب المفتوح */
.open-book-spread {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1 / 1.18;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 2px solid var(--paper-border-dark);
  box-shadow: var(--shadow-book);
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-spine-shadow {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 20px;
  background: linear-gradient(to left, rgba(0, 0, 0, 0.07), transparent);
  pointer-events: none;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #F1F5F9;
  padding-bottom: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ink-faint);
}

.page-illustration-viewport {
  width: 100%;
  height: 100%;
  max-height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px;
}

.page-illustration-viewport svg {
  width: 100%;
  height: 100%;
  max-height: 320px;
}

.page-footer {
  text-align: center;
  border-top: 1px solid #F1F5F9;
  padding-top: 10px;
}

.page-illustration-title {
  font-size: 1.05rem;
  font-weight: 800;
}

.page-illustration-desc {
  font-size: 0.775rem;
  color: var(--ink-muted);
}

/* أزرار تقليب الصفحات العائمة */
.flip-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 1px solid var(--paper-border);
  box-shadow: var(--shadow-sm);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--ink-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  z-index: 10;
}
.flip-btn:hover {
  background: var(--paper-cream);
  transform: translateY(-50%) scale(1.1);
}
.flip-prev {
  right: -20px;
}
.flip-next {
  left: -20px;
}

.page-scrubber {
  display: flex;
  gap: 8px;
}

.scrub-tab {
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid var(--paper-border);
  background: #FFFFFF;
  color: var(--ink-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}
.scrub-tab.active {
  background: var(--color-amber-primary);
  color: #FFFFFF;
  border-color: var(--color-amber-primary);
}

.modal-footer {
  background: #FFFFFF;
  padding: 16px 24px;
  border-top: 1px solid var(--paper-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.modal-footer-note {
  font-size: 0.825rem;
  font-weight: 700;
  color: var(--color-emerald);
}

.modal-footer-actions {
  display: flex;
  gap: 10px;
}

/* ==========================================================================
   التذييل (Footer)
   ========================================================================== */
.site-footer {
  background: #0F172A;
  color: #CBD5E1;
  padding: 70px 0 30px;
  border-top: 1px solid #334155;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 50px;
  margin-bottom: 50px;
}

.text-white { color: #FFFFFF !important; }
.text-slate-300 { color: #94A3B8 !important; }

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.8;
  margin: 16px 0;
  max-width: 440px;
}

.print-badge {
  display: inline-block;
  background: #1E293B;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 0.775rem;
  font-weight: 700;
  color: #F8FAFC;
  border: 1px solid #334155;
}

.footer-heading {
  font-size: 1.1rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 18px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 0.9rem;
  color: #94A3B8;
  transition: color 0.2s ease;
}
.footer-links a:hover {
  color: var(--color-amber-primary);
}

.footer-bottom {
  border-top: 1px solid #1E293B;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.825rem;
  color: #64748B;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-heart {
  font-weight: 600;
  color: #94A3B8;
}

/* ==========================================================================
   قواعد الطباعة الرسمية (Print Stylesheet)
   ========================================================================== */
.print-only-container {
  display: none;
}

@media print {
  /* إخفاء كل ما يخص واجهة الشاشة */
  .print-hidden,
  .site-header,
  .hero-section,
  .catalog-section,
  .sampler-section,
  .tips-section,
  .modal-overlay,
  .site-footer {
    display: none !important;
  }

  /* إظهار حاوية أوراق التلوين للطباعة فقط */
  .print-only-container {
    display: block !important;
    width: 100% !important;
    background: #FFFFFF !important;
  }

  .print-sheet {
    page-break-after: always;
    break-after: page;
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 90vh;
    text-align: center;
  }

  .print-sheet-header {
    border-bottom: 2px solid #000000;
    padding-bottom: 10px;
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    font-weight: bold;
    color: #000000;
  }

  .print-svg-wrapper {
    margin: auto;
    width: 100%;
    max-width: 580px;
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .print-svg-wrapper svg {
    width: 100%;
    height: 100%;
  }

  .print-sheet-footer {
    border-top: 1px solid #CCCCCC;
    padding-top: 10px;
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: #666666;
  }

  @page {
    size: A4 portrait;
    margin: 10mm;
  }
}

/* ==========================================================================
   شريط الكلمات المفتاحية والبحث الرائج (Search Keywords Strip)
   ========================================================================== */
.search-keywords-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
  padding-top: 16px;
  border-top: 1px dashed var(--paper-border-dark);
  width: 100%;
}

.keywords-label {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--ink-primary);
  white-space: nowrap;
}

.keywords-pills {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.keyword-pill {
  display: inline-block;
  background: #FFFFFF;
  border: 1px solid var(--paper-border-dark);
  color: var(--ink-body);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  transition: all 0.2s ease;
  box-shadow: var(--shadow-xs);
}

.keyword-pill:hover {
  background: var(--paper-cream);
  border-color: var(--color-amber-primary);
  color: var(--color-amber-primary);
  transform: translateY(-2px);
}

.keyword-pill.highlight-pill {
  background: #FEF3C7;
  border-color: #FCD34D;
  color: #92400E;
}
.keyword-pill.highlight-pill:hover {
  background: #FDE68A;
  color: #78350F;
}

/* ==========================================================================
   قسم الأسئلة الشائعة (FAQ Accordion Section)
   ========================================================================== */
.faq-section {
  padding: 80px 0;
  background: var(--paper-ground);
}

.faq-accordion-grid {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: var(--shadow-xs);
}

.faq-item.active {
  border-color: var(--color-amber-primary);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  padding: 18px 24px;
  background: none;
  border: none;
  text-align: right;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--ink-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: color 0.2s ease;
}

.faq-question:hover {
  color: var(--color-amber-primary);
}

.faq-toggle-icon {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-amber-primary);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #FEF3C7;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item.active .faq-toggle-icon {
  transform: rotate(45deg);
  background: #FDE68A;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--ink-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

.faq-item.active .faq-answer {
  max-height: 250px;
  padding-bottom: 20px;
}

.faq-answer strong {
  color: var(--ink-primary);
}

/* ==========================================================================
   التجاوب مع الشاشات والأجهزة (Responsive Styles)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero-content {
    align-items: center;
    text-align: center;
  }
  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }
  .trust-cards {
    max-width: 500px;
  }
  .hero-buttons {
    justify-content: center;
  }
  .books-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .sampler-banner {
    grid-template-columns: 1fr;
    padding: 40px;
  }
  .tips-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .main-nav {
    display: none !important;
  }
  .menu-toggle {
    display: flex;
  }
  .mobile-nav-drawer {
    display: block;
  }
  .header-actions .header-cta-btn {
    display: none;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .trust-cards {
    grid-template-columns: 1fr;
    width: 100%;
  }
  .books-grid {
    grid-template-columns: 1fr;
  }
  .flip-btn {
    display: none; /* استخدام السحب أو الأزرار السفلية في الجوال */
  }
  .back-to-top-btn {
    bottom: 18px;
    left: 18px;
    width: 42px;
    height: 42px;
  }
}

/* ==========================================================================
   قسم استوديو التلوين أونلاين (Online Coloring Studio Styles)
   ========================================================================== */
.studio-section {
  padding: 80px 0;
  background: linear-gradient(180deg, #FDFBF7 0%, #FFF7ED 50%, #FDFBF7 100%);
  border-top: 1px solid var(--paper-border);
  border-bottom: 1px solid var(--paper-border);
  position: relative;
}

.studio-category-chips {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  max-width: 100%;
  padding-bottom: 14px;
  margin-bottom: 24px;
  justify-content: center;
}

.studio-gallery-container {
  width: 100%;
}

/* معرض مصغرات الرسومات في الصفحة الرئيسية */
.studio-drawings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 10px 0;
}

.drawing-thumb-card {
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-xl);
  padding: 18px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  box-shadow: var(--shadow-xs);
  color: inherit;
}

.drawing-thumb-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-amber-primary);
  box-shadow: 0 14px 25px -4px rgba(217, 119, 6, 0.18);
}

.drawing-thumb-svg {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #FAFAFA;
  border-radius: var(--radius-lg);
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed var(--paper-border-dark);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.drawing-thumb-card:hover .drawing-thumb-svg {
  background: #FFFBEB;
  border-color: var(--color-amber-primary);
}

.drawing-thumb-svg svg {
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.drawing-thumb-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 100%;
}

.drawing-thumb-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--ink-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

.drawing-thumb-tag {
  font-size: 0.8rem;
  color: var(--ink-muted);
  font-weight: 700;
}

.drawing-start-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 9px 16px;
  background: var(--paper-cream);
  color: var(--color-amber-dark);
  border: 1px solid var(--paper-border-dark);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 800;
  margin-top: 4px;
  transition: all 0.2s ease;
}

.drawing-thumb-card:hover .drawing-start-btn {
  background: var(--color-amber-primary);
  color: #FFFFFF;
  border-color: var(--color-amber-primary);
}

/* منصة اللوحة التفاعلية */
.studio-canvas-container {
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.studio-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  background: #F8FAFC;
  border-bottom: 1px solid var(--paper-border);
  flex-wrap: wrap;
  gap: 16px;
}

.current-drawing-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.current-drawing-emoji {
  font-size: 2rem;
  line-height: 1;
}

.current-drawing-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--ink-primary);
  margin: 0;
}

.current-drawing-category {
  font-size: 0.825rem;
  color: var(--ink-muted);
  font-weight: 600;
}

.studio-actions-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.studio-tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--ink-body);
  background: #FFFFFF;
  border: 1px solid var(--paper-border-dark);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
}

.studio-tool-btn:hover {
  background: #F1F5F9;
  border-color: #94A3B8;
  transform: translateY(-1px);
}

.studio-tool-btn.primary-tool {
  background: var(--color-amber-primary);
  color: #FFFFFF;
  border-color: var(--color-amber-primary);
}

.studio-tool-btn.primary-tool:hover {
  background: var(--color-amber-dark);
  border-color: var(--color-amber-dark);
}

.studio-workspace {
  display: flex;
  flex-direction: column;
  padding: 24px;
  gap: 20px;
  background: #FDFBF7;
}

.studio-board {
  position: relative;
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-xl);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: inset 0 2px 8px rgba(15, 23, 42, 0.04);
}

.studio-svg-viewport {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.studio-svg-viewport svg {
  width: 100%;
  height: 100%;
  touch-action: manipulation;
  user-select: none;
}

/* الأشكال القابلة للتلوين داخل الرسمة */
.colorable-shape {
  cursor: pointer;
  transition: fill 0.15s ease, stroke-width 0.15s ease;
}

.colorable-shape:hover {
  filter: brightness(0.92);
  stroke: var(--color-amber-primary) !important;
  stroke-width: 6 !important;
}

.coloring-tip-pill {
  margin-top: 14px;
  background: #FEF3C7;
  color: #92400E;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid #FDE68A;
}

/* لوحة الألوان السحرية للأطفال */
.studio-palette-dock {
  background: #FFFFFF;
  border: 1px solid var(--paper-border);
  border-radius: var(--radius-xl);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-xs);
}

.palette-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.palette-title {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--ink-primary);
}

.active-color-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--ink-muted);
}

.color-sample {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid #FFFFFF;
  box-shadow: 0 0 0 1px #CBD5E1;
  display: inline-block;
  transition: transform 0.2s ease;
}

.palette-swatches-grid {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.palette-swatch {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 3px solid #FFFFFF;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.15);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.palette-swatch:hover {
  transform: scale(1.18);
  box-shadow: 0 6px 12px rgba(15, 23, 42, 0.2);
}

.palette-swatch.active {
  transform: scale(1.22);
  box-shadow: 0 0 0 3px var(--ink-primary), 0 8px 16px rgba(15, 23, 42, 0.25);
  z-index: 2;
}

.palette-swatch.active::after {
  content: '';
  position: absolute;
  top: 45%;
  left: 50%;
  width: 5px;
  height: 9px;
  border: solid #FFFFFF;
  border-width: 0 2.5px 2.5px 0;
  transform: translate(-50%, -50%) rotate(45deg);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.6);
}

.palette-swatch.is-white.active::after {
  color: #1E293B;
  text-shadow: none;
}

/* ==========================================================================
   صفحة التلوين المستقلة (Dedicated Coloring Page - coloring.html)
   ========================================================================== */
.coloring-page-body {
  background: var(--paper-cream);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.coloring-header {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--paper-border);
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 12px 0;
  box-shadow: var(--shadow-xs);
}

.coloring-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.back-to-gallery-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: #FFFFFF;
  border: 1.5px solid var(--paper-border-dark);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 800;
  color: var(--ink-primary);
  text-decoration: none;
  transition: all 0.2s ease;
}

.back-to-gallery-btn:hover {
  background: var(--color-amber-primary);
  color: #FFFFFF;
  border-color: var(--color-amber-primary);
  transform: translateX(3px);
}

.back-to-gallery-btn .back-arrow {
  font-size: 1.1rem;
  transition: transform 0.2s ease;
}

.coloring-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.coloring-breadcrumb-strip {
  background: #FFFFFF;
  border-bottom: 1px solid var(--paper-border);
  padding: 10px 0;
  font-size: 0.825rem;
  color: var(--ink-muted);
}

.coloring-subbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.breadcrumb-nav a {
  color: var(--ink-muted);
  text-decoration: none;
  font-weight: 600;
}

.breadcrumb-nav a:hover {
  color: var(--color-amber-primary);
}

.breadcrumb-separator {
  color: #CBD5E1;
}

.breadcrumb-current {
  color: var(--color-amber-dark);
  font-weight: 800;
}

.coloring-stage-main {
  flex: 1;
  padding: 30px 0 60px;
}

.coloring-canvas-card {
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: 40px;
}

.coloring-page-workspace {
  background: #FDFBF7;
  padding: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.dedicated-board {
  width: 100%;
  max-width: 650px;
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-2xl);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.05);
}

.dedicated-viewport {
  width: 100%;
  max-width: 520px;
  aspect-ratio: 1 / 1;
}

.dedicated-palette-dock {
  width: 100%;
  max-width: 650px;
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-2xl);
  padding: 20px 24px;
  box-shadow: var(--shadow-sm);
}

/* اقتراحات رسومات أخرى */
.suggested-drawings-section {
  margin-top: 40px;
}

.suggested-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.suggested-title {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--ink-primary);
}

.see-all-link {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--color-amber-primary);
  text-decoration: none;
}

.see-all-link:hover {
  text-decoration: underline;
}

.suggested-drawings-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.coloring-page-footer {
  background: #0F172A;
  color: #94A3B8;
  padding: 24px 0;
  margin-top: auto;
  border-top: 1px solid #1E293B;
}

/* تجاوب استوديو وصفحة التلوين */
@media (max-width: 1024px) {
  .studio-drawings-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .suggested-drawings-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .studio-drawings-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .suggested-drawings-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  .studio-topbar {
    flex-direction: column;
    align-items: flex-start;
  }
  .studio-actions-bar {
    width: 100%;
    justify-content: space-between;
  }
  .studio-tool-btn {
    flex: 1;
    justify-content: center;
    padding: 8px 6px;
    font-size: 0.75rem;
  }
  .palette-swatch {
    width: 32px;
    height: 32px;
  }
  .coloring-header-actions {
    display: none;
  }
  .dedicated-board, .dedicated-palette-dock {
    padding: 16px;
  }
  .coloring-page-workspace {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .studio-drawings-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .suggested-drawings-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .drawing-thumb-card {
    padding: 12px;
  }
  .drawing-thumb-title {
    font-size: 0.9rem;
  }
  .drawing-start-btn {
    padding: 7px 10px;
    font-size: 0.75rem;
  }
}

/* ==========================================================================
   قسم وحزمة صفحات الحروف العربية للتلوين (Arabic Alphabet Coloring Page)
   ========================================================================== */
.alphabet-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #FEF3C7;
  color: #92400E;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 800;
  margin-bottom: 20px;
  border: 1px solid #FDE68A;
}

.alphabet-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 36px;
}

@media (max-width: 1024px) {
  .alphabet-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
}

@media (max-width: 768px) {
  .alphabet-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
}

@media (max-width: 480px) {
  .alphabet-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

.letter-card {
  background: #FFFFFF;
  border: 2px solid var(--paper-border);
  border-radius: var(--radius-xl);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
  overflow: hidden;
  scroll-margin-top: 90px;
}

.letter-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-amber-primary);
}

.letter-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.letter-order-tag {
  font-size: 0.775rem;
  font-weight: 800;
  color: #94A3B8;
}

.letter-audio-hint {
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--color-amber-primary);
  background: #FFFBEB;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  border: 1px solid #FDE68A;
}

.letter-preview-box {
  background: linear-gradient(135deg, #FFFBEB, #FEF3C7);
  border: 2px solid #FDE68A;
  border-radius: var(--radius-lg);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  min-height: 180px;
  position: relative;
}

.hollow-letter-display {
  font-family: 'Cairo', Tajawal, sans-serif;
  font-size: 4.4rem;
  font-weight: 900;
  line-height: 1.1;
  color: #FFFFFF;
  -webkit-text-stroke: 3.5px #1E293B;
  text-shadow: 2px 2px 0px rgba(0, 0, 0, 0.08);
  margin-bottom: 6px;
  user-select: none;
}

.letter-art-svg {
  width: 72px;
  height: 72px;
  margin-top: 4px;
}

.letter-word-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--ink-primary);
  margin-bottom: 4px;
}

.letter-sub-caption {
  font-size: 0.825rem;
  color: var(--ink-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.letter-actions-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: auto;
}

.btn-letter-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-letter-print {
  background: #F8FAFC;
  color: #1E293B;
  border: 1px solid #CBD5E1;
}
.btn-letter-print:hover {
  background: #E2E8F0;
  border-color: #94A3B8;
}

.btn-letter-color {
  background: var(--color-amber-primary);
  color: #FFFFFF;
  border: 1px solid var(--color-amber-primary);
}
.btn-letter-color:hover {
  background: #B45309;
}

.alphabet-bundle-banner {
  background: linear-gradient(135deg, #0F172A, #1E293B);
  color: #FFFFFF;
  border-radius: var(--radius-xl);
  padding: 48px;
  margin: 70px 0;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

@media (max-width: 900px) {
  .alphabet-bundle-banner {
    grid-template-columns: 1fr;
    padding: 32px 20px;
  }
}

.alphabet-bundle-title {
  font-size: 2rem;
  font-weight: 900;
  color: #FFFFFF;
  line-height: 1.3;
  margin-bottom: 16px;
}

.alphabet-bundle-desc {
  font-size: 1rem;
  color: #CBD5E1;
  line-height: 1.75;
  margin-bottom: 24px;
}

.alphabet-bundle-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #F1F5F9;
  margin-bottom: 28px;
}

.letters-quick-index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.letter-jump-chip {
  min-width: 38px;
  height: 38px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #FFFFFF;
  color: #0F172A;
  font-weight: 800;
  font-size: 1.05rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all 0.2s ease;
}

.letter-jump-chip:hover {
  background: var(--color-amber-primary);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.filter-pill {
  padding: 8px 18px;
  border-radius: 9999px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 1px solid var(--border-color);
  background: #FFFFFF;
  color: var(--ink-secondary);
  font-family: inherit;
}

.filter-pill:hover {
  border-color: var(--color-amber-primary);
  color: var(--color-amber-primary);
  transform: translateY(-1px);
}

.filter-pill.active {
  background: var(--color-amber-primary);
  color: #FFFFFF;
  border-color: var(--color-amber-primary);
  box-shadow: 0 2px 8px rgba(217, 119, 6, 0.25);
}

/* فئات مسار التنقل والأقسام السريعة لصفحات الهبوط */
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumb-item {
  display: inline-flex;
  align-items: center;
}

.quick-jump-section,
.quick-filter-strip {
  padding: 20px 0;
  position: relative;
  z-index: 10;
}

.alphabet-catalog-section {
  padding: 30px 0 60px;
}

.bundle-download-section {
  padding: 60px 0;
}

.btn-arrow,
.cta-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
  font-family: inherit;
}

.btn:hover .btn-arrow {
  transform: translateY(2px);
}

.btn:hover .cta-arrow,
.book-cover-card:hover .cta-arrow {
  transform: translateX(-4px);
}