/* ======================================================================
   PDF Reader Pro – Professional Enhanced Stylesheet
   Version: 2.0.0 - Professional Design Update
   
   ✨ Features Added:
   • Glassmorphism effects with backdrop-filter
   • Advanced gradient backgrounds and animations
   • Professional micro-interactions and hover effects
   • Enhanced glassmorphism modals and components
   • Sophisticated loading animations and skeleton loaders
   • Beautiful progress bars with shimmer effects
   • Professional delayed download system with countdown
   • Enhanced success notifications with animations
   • Improved accessibility and dark mode support
   • Advanced responsive design for all devices
   • Custom scrollbars and focus states
   • Professional typography and spacing
   ====================================================================== */

/* -------------------------
   1) Enhanced Professional Color Palette
   ------------------------- */
:root {
  /* Primary Colors with Gradients */
  --primary-color:     #1ab685;
  --primary-light:     #2dd196;
  --primary-dark:      #138a61;
  --primary-gradient:  linear-gradient(135deg, #1ab685 0%, #2dd196 50%, #138a61 100%);
  --primary-glow:      0 0 20px rgba(26, 182, 133, 0.3);
  
  /* Secondary Colors */
  --secondary-color:   #667eea;
  --secondary-light:   #7c8df8;
  --secondary-dark:    #5a67d8;
  --secondary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  
  /* Neutral Colors */
  --white:             #ffffff;
  --light-gray:        #f8fafc;
  --medium-gray:       #e2e8f0;
  --dark-gray:         #4a5568;
  --text-primary:      #2d3748;
  --text-secondary:    #718096;
  
  /* Status Colors */
  --success-color:     #48bb78;
  --success-gradient:  linear-gradient(135deg, #48bb78 0%, #38a169 100%);
  --warning-color:     #ed8936;
  --error-color:       #f56565;
  
  /* Shadow Definitions */
  --shadow-sm:         0 2px 4px rgba(0,0,0,0.06);
  --shadow-md:         0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg:         0 10px 15px rgba(0,0,0,0.1);
  --shadow-xl:         0 20px 25px rgba(0,0,0,0.1);
  --shadow-2xl:        0 25px 50px rgba(0,0,0,0.25);
  --shadow-inner:      inset 0 2px 4px rgba(0,0,0,0.06);
  
  /* Legacy Variables (for backward compatibility) */
  --indicator-bg:      rgba(0,0,0,0.8);
  --indicator-fg:      #fff;
  --download-bg:       var(--primary-color);
  --download-color:    #ffffff;
  --preview-bg:        var(--primary-color);
  --preview-color:     #ffffff;
  --popup-bg:          rgba(0,0,0,0.8);
  --popup-color:       #ffffff;
  
  /* Animation Variables */
  --transition-fast:   0.15s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow:   0.5s ease-out;
  --bounce:            cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* -------------------------
   2) Cairo Custom Font with Performance Optimization
   ------------------------- */
@font-face {
  font-family: 'CairoCustom';
  src: url('https://yamister.com/wp-content/uploads/2025/cairo.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap; /* تحسين أداء تحميل الخط */
}

/* Fallback font stack for better performance */
.pdf-font-optimized {
  font-family: 'CairoCustom', 'Segoe UI', Tahoma, Arial, sans-serif;
}

/* -------------------------------------------------------
   3) Enhanced Modal with Glassmorphism
   ------------------------------------------------------- */
.pdf-modal {
  display: none !important;
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background: radial-gradient(circle at center, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.8) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  animation: modalFadeIn var(--transition-slow) ease-out;
}

.pdf-modal.active {
  display: block !important;
}

@keyframes modalFadeIn {
  from { 
    opacity: 0;
    backdrop-filter: blur(0px);
  }
  to { 
    opacity: 1;
    backdrop-filter: blur(8px);
  }
}

.pdf-reader-modal-content {
  background: rgba(255, 255, 255, 0.95) !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--text-primary) !important;
  width: 95vw; 
  max-width: 920px;
  height: 92vh; 
  margin: 4vh auto;
  display: flex; 
  flex-direction: column;
  overflow: hidden; 
  border-radius: 20px;
  position: relative;
  font-family: 'CairoCustom', sans-serif !important;
  box-shadow: var(--shadow-2xl);
  animation: modalSlideIn var(--transition-slow) var(--bounce);
}

@keyframes modalSlideIn {
  from {
    transform: scale(0.9) translateY(60px);
    opacity: 0;
  }
  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.pdf-reader-modal-content .pdf-reader-toolbar {
  width: 100%;
  box-sizing: border-box;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 20px 20px 0 0;
}

/* Enhanced modal close animation */
.pdf-modal:not(.active) {
  animation: modalFadeOut var(--transition-normal) ease-in;
}

.pdf-modal:not(.active) .pdf-reader-modal-content {
  animation: modalSlideOut var(--transition-normal) ease-in;
}

@keyframes modalFadeOut {
  from { 
    opacity: 1;
    backdrop-filter: blur(8px);
  }
  to { 
    opacity: 0;
    backdrop-filter: blur(0px);
  }
}

@keyframes modalSlideOut {
  from {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
  to {
    transform: scale(0.95) translateY(-30px);
    opacity: 0;
  }
}

/* -------------------------------------------------------
   4) Enhanced Toolbar with Better Sizing
   ------------------------------------------------------- */
.pdf-reader-toolbar {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 16px 20px;
  display: flex; 
  align-items: stretch; 
  gap: 15px; /* تقليل المسافة لإتاحة مساحة أكبر للسلكتور */
  position: sticky; 
  top: 0; 
  z-index: 1000;
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  min-height: 80px;
  width: 100%;
  border-radius: 20px 20px 0 0;
  box-sizing: border-box; /* ضمان حساب الحدود في العرض */
}

.pdf-reader-toolbar .pdf-reader-close {
  background: var(--primary-gradient) !important;
  border: 1px solid rgba(255, 255, 255, 0.3) !important;
  color: var(--white) !important;
  border-radius: 14px;
  padding: 16px 24px; /* تقليل padding لإتاحة مساحة أكبر للسلكتور */
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  font-family: 'CairoCustom', sans-serif !important;
  transition: all var(--transition-normal);
  flex: 0 0 180px; /* تقليل عرض زر العودة قليلاً لإتاحة مساحة أكبر للسلكتور */
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.pdf-reader-toolbar .pdf-reader-close::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: inherit;
  transition: all var(--transition-fast);
  opacity: 0;
}

.pdf-reader-toolbar .pdf-reader-close:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--primary-glow);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 50%, var(--primary-dark) 100%) !important;
}

.pdf-reader-toolbar .pdf-reader-close:hover::before {
  opacity: 1;
}

.pdf-reader-toolbar .pdf-reader-close:active {
  transform: translateY(0);
  transition: transform var(--transition-fast);
}

.pdf-reader-toolbar .pdf-page-select {
  background: rgba(248, 249, 250, 0.9) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 2px solid rgba(26, 182, 133, 0.3) !important;
  color: var(--text-primary) !important;
  border-radius: 14px;
  padding: 16px 24px 16px 45px;
  font-size: 18px; /* إرجاع حجم الخط الأصلي */
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  font-family: 'CairoCustom', sans-serif !important;
  flex: 1; /* يأخذ كامل المساحة المتاحة */
  min-width: 200px; /* عرض أدنى مناسب */
  height: 52px;
  transition: all var(--transition-normal);
  text-align: center; /* محاذاة وسط */
  text-align-last: center;
  direction: rtl;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23667eea' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: left 15px center;
  background-size: 20px;
  position: relative;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* تحسين خيارات السلكتور */
.pdf-reader-toolbar .pdf-page-select option {
  padding: 8px 16px;
  font-family: 'CairoCustom', sans-serif;
  font-size: 14px;
  direction: rtl;
  text-align: right;
  background: white;
  color: var(--text-primary);
}

.pdf-reader-toolbar .pdf-page-select option.loaded-page {
  background-color: rgba(34, 197, 94, 0.1) !important;
  color: #166534 !important;
}

.pdf-reader-toolbar .pdf-page-select option.failed-page {
  background-color: rgba(239, 68, 68, 0.1) !important;
  color: #991b1b !important;
}

.pdf-reader-toolbar .pdf-page-select::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
  border-radius: inherit;
  transition: all var(--transition-fast);
  opacity: 0;
}

.pdf-reader-toolbar .pdf-page-select:focus,
.pdf-reader-toolbar .pdf-page-select:hover {
  border-color: var(--secondary-color) !important;
  background: rgba(255, 255, 255, 0.95) !important;
  box-shadow: var(--shadow-lg), 0 0 20px rgba(102, 126, 234, 0.2);
  outline: none;
  transform: translateY(-1px);
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235a67d8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");
}

.pdf-reader-toolbar .pdf-page-select:hover::before {
  opacity: 1;
}

.pdf-reader-toolbar .pdf-page-select:active {
  transform: translateY(0);
  transition: transform var(--transition-fast);
}

.pdf-reader-toolbar .pdf-page-select option {
  padding: 12px 18px;
  font-size: 16px;
  font-family: 'CairoCustom', sans-serif;
  text-align: center;
  background: var(--white);
  color: var(--text-primary);
  border-radius: 8px;
  margin: 2px 0;
  direction: ltr;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 40px;
}

.pdf-reader-toolbar .pdf-page-select option:hover {
  background: var(--light-gray);
  color: var(--primary-color);
}

/* ضمان أن النص مرئي بالكامل في جميع المتصفحات */
.pdf-reader-toolbar .pdf-page-select {
  word-wrap: normal;
  text-align-last: center;
  vertical-align: middle;
  line-height: normal;
}

/* تحسين للأجهزة المحمولة */
@media (max-width: 768px) {
  .pdf-reader-toolbar {
    padding: 10px 15px;
    gap: 15px;
    min-height: 60px;
    flex-direction: row;
  }
  
  .pdf-reader-toolbar .pdf-reader-close {
    flex: 0 0 140px;
    height: 45px;
    padding: 12px 20px;
    font-size: 16px;
  }
  
  .pdf-reader-toolbar .pdf-page-select {
    height: 45px;
    padding: 12px 15px 12px 40px;
    font-size: 16px;
    flex: 1;
    min-width: 100px;
    background-size: 18px;
    background-position: left 12px center;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
  }
}

/* تحسين إضافي للشاشات الصغيرة جداً */
@media (max-width: 480px) {
  .pdf-reader-toolbar {
    padding: 8px 10px;
    gap: 10px;
    min-height: 55px;
  }
  
  .pdf-reader-toolbar .pdf-reader-close {
    flex: 0 0 120px;
    height: 42px;
    padding: 10px 15px;
    font-size: 15px;
  }
  
  .pdf-reader-toolbar .pdf-page-select {
    height: 42px;
    padding: 10px 12px 10px 35px;
    font-size: 15px;
    min-width: 80px;
    background-size: 16px;
    background-position: left 8px center;
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    text-align: center;
  }
}

/* -------------------------------------------------------
   5) Enhanced Loader with Glassmorphism
   ------------------------------------------------------- */
.pdf-loader {
  position: absolute;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.9) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1001;
  animation: loaderFadeIn var(--transition-normal) ease-out;
}

.pdf-loader.active {
  display: flex !important;
}

@keyframes loaderFadeIn {
  from { 
    opacity: 0;
    backdrop-filter: blur(0px);
  }
  to { 
    opacity: 1;
    backdrop-filter: blur(12px);
  }
}

.pdf-loader .spinner {
  position: relative;
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
}

.pdf-loader .spinner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 4px solid rgba(26, 182, 133, 0.2);
  border-radius: 50%;
}

.pdf-loader .spinner::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 4px solid transparent;
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spinEnhanced 1.2s linear infinite;
}

@keyframes spinEnhanced {
  0% { 
    transform: rotate(0deg);
    border-top-color: var(--primary-color);
  }
  25% { 
    border-top-color: var(--primary-light);
  }
  50% { 
    border-top-color: var(--secondary-color);
  }
  75% { 
    border-top-color: var(--primary-dark);
  }
  100% { 
    transform: rotate(360deg);
    border-top-color: var(--primary-color);
  }
}

.pdf-loader .loader-text {
  font-size: 16px;
  color: var(--text-secondary);
  font-family: 'CairoCustom', sans-serif;
  font-weight: 500;
  text-align: center;
  animation: textPulse 2s ease-in-out infinite;
}

@keyframes textPulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

/* -------------------------------------------------------
   6) Enhanced Progress & Summary
   ------------------------------------------------------- */
.pdf-reader-progress { 
  height: 6px; 
  background: rgba(226, 232, 240, 0.6);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
  transition: opacity var(--transition-slow), height var(--transition-slow);
}

.pdf-reader-progress.hide-progress {
  opacity: 0;
  height: 0;
  margin: 0;
  padding: 0;
}

.pdf-progress-bar { 
  width: 0; 
  height: 100%; 
  background: var(--primary-gradient);
  transition: width var(--transition-slow) ease-out;
  border-radius: 3px;
  position: relative;
  overflow: hidden;
}

.pdf-progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background-image: linear-gradient(
    -45deg,
    rgba(255, 255, 255, 0.3) 25%,
    transparent 25%,
    transparent 50%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0.3) 75%,
    transparent 75%,
    transparent
  );
  background-size: 20px 20px;
  animation: progressShine 2s linear infinite;
}

@keyframes progressShine {
  0% { background-position: 0 0; }
  100% { background-position: 20px 0; }
}

.pdf-page-summary {
  text-align: center;
  font-weight: 600;
  font-size: 16px;
  padding: 12px 0;
  background: rgba(248, 249, 250, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  font-family: 'CairoCustom', sans-serif;
  color: var(--text-secondary);
  position: relative;
}

.pdf-page-summary::before {
  content: '📄';
  margin-left: 8px;
  font-size: 14px;
}

/* -------------------------------------------------------
   7) Page Label & Canvas
   ------------------------------------------------------- */
.pdf-page-label {
  display: inline-block;
  margin: 0 auto 8px;
  background: #fff;
  border: 1px solid #ddd;
  border-radius: 3px;
  padding: 2px 8px;
  font-size: 12px;
  color: #555;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  position: sticky; top: 56px; z-index: 500;
}
.pdf-reader-canvas-wrap {
  flex: 1;
  overflow-y: auto; overflow-x: hidden;
  background: #f9f9f9; padding: 10px;
  position: relative;
}
.pdf-reader-canvas-wrap canvas {
  display: block;
  width: 100% !important;
  height: auto !important;
  margin: 20px auto;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  border-radius: 2px;
}
canvas.low-res { filter: blur(1px) grayscale(.1); }

/* -------------------------------------------------------
   9) Professional Buttons with Glassmorphism Effects
   ------------------------------------------------------- */
.pdf-reader-wrapper {
  text-align: center;
  margin: 30px 0;
  font-family: 'CairoCustom', sans-serif;
  padding: 0 15px;
}

.pdf-reader-wrapper .pdf-reader-btn-download,
.pdf-reader-wrapper .pdf-reader-btn-preview {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0 10px 15px;
  padding: 16px 32px;
  font-size: 16px;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  min-width: 180px;
  min-height: 56px;
  text-decoration: none;
  overflow: hidden;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transform: translateY(0);
  box-shadow: var(--shadow-lg);
}

.pdf-reader-wrapper .pdf-reader-btn-download {
  background: var(--primary-gradient);
  color: var(--white) !important;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.pdf-reader-wrapper .pdf-reader-btn-preview {
  background: var(--secondary-gradient);
  color: var(--white) !important;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Glassmorphism overlay */
.pdf-reader-wrapper .pdf-reader-btn-download::before,
.pdf-reader-wrapper .pdf-reader-btn-preview::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: inherit;
  transition: all var(--transition-fast);
  opacity: 0;
}

/* Ripple effect */
.pdf-reader-wrapper .pdf-reader-btn-download::after,
.pdf-reader-wrapper .pdf-reader-btn-preview::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

/* Hover Effects */
.pdf-reader-wrapper .pdf-reader-btn-download:hover,
.pdf-reader-wrapper .pdf-reader-btn-preview:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl), var(--primary-glow);
}

.pdf-reader-wrapper .pdf-reader-btn-download:hover::before,
.pdf-reader-wrapper .pdf-reader-btn-preview:hover::before {
  opacity: 1;
}

.pdf-reader-wrapper .pdf-reader-btn-download:active::after,
.pdf-reader-wrapper .pdf-reader-btn-preview:active::after {
  width: 300px;
  height: 300px;
}

/* Icon enhancements */
.pdf-reader-wrapper .pdf-reader-btn-preview i.fa,
.pdf-reader-wrapper .pdf-reader-btn-download i.fa {
  margin-left: 8px !important;
  display: inline-block !important;
  transition: transform var(--transition-normal);
  font-size: 18px;
}

.pdf-reader-wrapper .pdf-reader-btn-download:hover i.fa {
  transform: translateY(-2px) scale(1.1);
  animation: downloadPulse 2s infinite;
}

.pdf-reader-wrapper .pdf-reader-btn-preview:hover i.fa {
  transform: scale(1.1) rotate(5deg);
}

@keyframes downloadPulse {
  0%, 100% { transform: translateY(-2px) scale(1.1); }
  50% { transform: translateY(-4px) scale(1.2); }
}

/* Loading state */
.pdf-reader-wrapper .pdf-reader-btn-download:disabled,
.pdf-reader-wrapper .pdf-reader-btn-preview:disabled {
  opacity: 0.7;
  cursor: wait;
  transform: none;
  pointer-events: none;
}

.pdf-reader-wrapper .pdf-reader-btn-download:disabled::before,
.pdf-reader-wrapper .pdf-reader-btn-preview:disabled::before {
  opacity: 0.5;
  animation: loadingShimmer 1.5s infinite;
}

@keyframes loadingShimmer {
  0% { background-position: -200px 0; }
  100% { background-position: calc(200px + 100%) 0; }
}

/* -------------------------------------------------------
   10) Enhanced Delayed Download Modal
   ------------------------------------------------------- */
.pdf-download-delay-modal {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background: radial-gradient(circle at center, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.8) 100%);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  font-family: 'CairoCustom', sans-serif;
  animation: delayModalBackdropFade var(--transition-slow) ease-out;
}

@keyframes delayModalBackdropFade {
  from { 
    opacity: 0;
    backdrop-filter: blur(0px);
  }
  to { 
    opacity: 1;
    backdrop-filter: blur(8px);
  }
}

.pdf-download-delay-content {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  padding: 40px;
  border-radius: 24px;
  text-align: center;
  max-width: 450px;
  width: 90%;
  box-shadow: var(--shadow-2xl);
  animation: delayModalSlideIn var(--transition-slow) var(--bounce);
  position: relative;
  overflow: hidden;
}

.pdf-download-delay-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(26, 182, 133, 0.1) 0%, rgba(102, 126, 234, 0.1) 100%);
  border-radius: inherit;
  z-index: -1;
}

@keyframes delayModalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.8) translateY(60px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.pdf-delay-timer {
  font-size: 64px;
  font-weight: 800;
  color: var(--primary-color);
  margin: 25px 0;
  text-shadow: 0 4px 8px rgba(26, 182, 133, 0.3);
  animation: timerPulse 1s ease-in-out infinite;
  position: relative;
  z-index: 10;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-feature-settings: "tnum";
  font-variant-numeric: tabular-nums;
}

@keyframes timerPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.pdf-delay-message {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 25px;
  line-height: 1.6;
  font-weight: 500;
}

.pdf-delay-progress {
  width: 100%;
  height: 12px;
  background: rgba(226, 232, 240, 0.6);
  border-radius: 6px;
  overflow: hidden;
  margin: 25px 0;
  position: relative;
  box-shadow: var(--shadow-inner);
}

.pdf-delay-progress::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, 
    rgba(255, 255, 255, 0.2) 0%, 
    rgba(255, 255, 255, 0.1) 50%, 
    rgba(255, 255, 255, 0.2) 100%
  );
  animation: progressGlow 2s ease-in-out infinite;
}

@keyframes progressGlow {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.pdf-delay-progress-bar {
  height: 100%;
  background: var(--primary-gradient);
  transition: width 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
}

.pdf-delay-progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background-image: linear-gradient(
    -45deg,
    rgba(255, 255, 255, 0.4) 25%,
    transparent 25%,
    transparent 50%,
    rgba(255, 255, 255, 0.4) 50%,
    rgba(255, 255, 255, 0.4) 75%,
    transparent 75%,
    transparent
  );
  background-size: 20px 20px;
  animation: progressBarShine 1.5s linear infinite;
}

@keyframes progressBarShine {
  0% { background-position: 0 0; }
  100% { background-position: 20px 0; }
}

.pdf-delay-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 30px;
}

.pdf-delay-cancel, .pdf-delay-download-now {
  position: relative;
  padding: 14px 28px;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-family: 'CairoCustom', sans-serif;
  min-width: 140px;
  overflow: hidden;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
}

.pdf-delay-cancel {
  background: rgba(245, 245, 245, 0.9);
  color: var(--text-secondary);
  border: 1px solid rgba(226, 232, 240, 0.8);
}

.pdf-delay-cancel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(156, 163, 175, 0.1) 0%, rgba(107, 114, 128, 0.1) 100%);
  border-radius: inherit;
  transition: all var(--transition-fast);
  opacity: 0;
}

.pdf-delay-cancel:hover {
  background: rgba(226, 232, 240, 0.9);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.pdf-delay-cancel:hover::before {
  opacity: 1;
}

.pdf-delay-download-now {
  background: var(--primary-gradient);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.pdf-delay-download-now::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: inherit;
  transition: all var(--transition-fast);
  opacity: 0;
}

.pdf-delay-download-now:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--primary-glow);
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 50%, var(--primary-dark) 100%);
}

.pdf-delay-download-now:hover::before {
  opacity: 1;
}

.pdf-delay-cancel:active,
.pdf-delay-download-now:active {
  transform: translateY(0);
  transition: transform var(--transition-fast);
}

/* حالة الزر الجاهز للتحميل */
.pdf-delay-download-now.pdf-download-ready {
  background: var(--success-gradient) !important;
  animation: downloadReadyPulse 2s ease-in-out infinite;
  box-shadow: var(--shadow-xl), 0 0 20px rgba(72, 187, 120, 0.4);
}

.pdf-delay-download-now.pdf-download-ready:hover {
  animation: none;
  transform: translateY(-3px) scale(1.05);
}

@keyframes downloadReadyPulse {
  0%, 100% { 
    box-shadow: var(--shadow-xl), 0 0 20px rgba(72, 187, 120, 0.4);
  }
  50% { 
    box-shadow: var(--shadow-xl), 0 0 30px rgba(72, 187, 120, 0.6);
  }
}

/* Enhanced Success Notification */
.pdf-download-success {
  position: fixed;
  top: 24px;
  right: 24px;
  background: var(--success-gradient);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--white);
  padding: 20px 28px;
  border-radius: 16px;
  box-shadow: var(--shadow-xl);
  z-index: 100000;
  font-family: 'CairoCustom', sans-serif;
  font-size: 16px;
  font-weight: 600;
  min-width: 300px;
  animation: successSlideIn var(--transition-slow) var(--bounce), 
             successFadeOut var(--transition-slow) ease-in 4s forwards;
  position: relative;
  overflow: hidden;
}

.pdf-download-success::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: inherit;
  animation: successShimmer 2s ease-in-out infinite;
}

.pdf-download-success {
  padding-left: 56px;
}

.pdf-download-success::after {
  content: '✓';
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  font-weight: bold;
  animation: successCheckmark 0.6s ease-out 0.3s both;
  background: rgba(255, 255, 255, 0.2);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes successSlideIn {
  from { 
    transform: translateX(120%) scale(0.8);
    opacity: 0;
  }
  to { 
    transform: translateX(0) scale(1);
    opacity: 1;
  }
}

@keyframes successFadeOut {
  0%, 80% { 
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  100% { 
    opacity: 0;
    transform: translateX(120%) scale(0.9);
  }
}

@keyframes successShimmer {
  0%, 100% { opacity: 0.1; }
  50% { opacity: 0.3; }
}

@keyframes successCheckmark {
  0% { 
    transform: translateY(-50%) scale(0);
    opacity: 0;
  }
  50% { 
    transform: translateY(-50%) scale(1.2);
    opacity: 1;
  }
  100% { 
    transform: translateY(-50%) scale(1);
    opacity: 1;
  }
}

/* Enhanced Mobile Experience */
@media (max-width: 768px) {
  /* Modal adjustments */
  .pdf-reader-modal-content {
    width: 98vw;
    height: 95vh;
    margin: 2.5vh auto;
    border-radius: 16px;
  }
  
  /* Delayed download modal */
  .pdf-download-delay-content {
    padding: 24px;
    margin: 16px;
    width: calc(100% - 32px);
    border-radius: 20px;
  }
  
  .pdf-delay-timer {
    font-size: 48px;
    margin: 20px 0;
  }
  
  .pdf-delay-message {
    font-size: 16px;
    margin-bottom: 20px;
  }
  
  .pdf-delay-actions {
    flex-direction: column;
    gap: 12px;
  }
  
  .pdf-delay-cancel, .pdf-delay-download-now {
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
    border-radius: 12px;
  }
  
  .pdf-download-success {
    top: 16px;
    right: 16px;
    left: 16px;
    padding: 16px 20px;
    font-size: 15px;
    text-align: center;
    border-radius: 12px;
  }
  
  /* Button adjustments */
  .pdf-reader-wrapper .pdf-reader-btn-download,
  .pdf-reader-wrapper .pdf-reader-btn-preview {
    min-width: 160px;
    min-height: 52px;
    font-size: 15px;
    margin: 0 6px 12px;
  }
  
  /* Scroll indicator */
  .pdf-scroll-indicator {
    right: 16px;
    bottom: 16px;
    padding: 6px 12px;
    font-size: 13px;
  }
}

/* Extra small screens */
@media (max-width: 480px) {
  .pdf-reader-wrapper .pdf-reader-btn-download,
  .pdf-reader-wrapper .pdf-reader-btn-preview {
    display: block;
    width: 90%;
    margin: 0 auto 10px;
    min-width: unset;
  }
  
  .pdf-delay-timer {
    font-size: 40px;
  }
  
  .pdf-download-delay-content {
    padding: 20px;
    margin: 12px;
    width: calc(100% - 24px);
  }
}

/* -------------------------------------------------------
   11) Responsive – Stack Buttons on Mobile
   ------------------------------------------------------- */
@media (max-width: 768px) {
  .pdf-reader-wrapper .pdf-reader-btn-download,
  .pdf-reader-wrapper .pdf-reader-btn-preview {
    display: block !important;
    width: 90% !important;
    margin: 8px auto !important;
  }
}

/* -------------------------------------------------------
   11) Performance Optimizations
   ------------------------------------------------------- */
/* تحسينات الأداء العامة */
.pdf-modal * {
  box-sizing: border-box;
}

/* تحسين الرسوم المتحركة */
.pdf-modal, .pdf-progress-bar, .pdf-loader {
  will-change: auto;
  transform: translateZ(0); /* تفعيل التسريع الأجهزة */
}

/* تحسين scrolling performance */
.pdf-reader-canvas-wrap {
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

/* تحسين canvas rendering */
canvas.pdf-page-canvas {
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  image-rendering: pixelated;
}

/* Reduce paint complexity */
.pdf-page-label {
  contain: layout style paint;
}

/* Critical CSS inlining for buttons */
.pdf-reader-btn-preview, .pdf-reader-btn-download {
  contain: layout style;
  transform: translateZ(0);
}

/* تحسين الذاكرة للأجهزة المحمولة */
@media (max-width: 768px) {
  .pdf-modal {
    contain: strict;
  }
  
  canvas.pdf-page-canvas {
    max-width: 100vw;
    height: auto !important;
  }
}

/* Enhanced Skeleton Loaders */
.pdf-page-skeleton {
  background: linear-gradient(
    110deg,
    rgba(227, 227, 227, 0.8) 8%,
    rgba(249, 249, 249, 0.8) 18%,
    rgba(227, 227, 227, 0.8) 33%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.8s ease-in-out infinite;
  height: 420px;
  margin: 24px auto;
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.pdf-page-skeleton::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 20px;
  right: 20px;
  height: 20px;
  background: linear-gradient(
    110deg,
    rgba(200, 200, 200, 0.6) 8%,
    rgba(230, 230, 230, 0.6) 18%,
    rgba(200, 200, 200, 0.6) 33%
  );
  background-size: 200% 100%;
  border-radius: 6px;
  animation: skeletonShimmer 1.8s ease-in-out infinite 0.3s;
}

.pdf-page-skeleton::after {
  content: '';
  position: absolute;
  top: 60px;
  left: 20px;
  right: 40px;
  height: 16px;
  background: linear-gradient(
    110deg,
    rgba(210, 210, 210, 0.4) 8%,
    rgba(240, 240, 240, 0.4) 18%,
    rgba(210, 210, 210, 0.4) 33%
  );
  background-size: 200% 100%;
  border-radius: 4px;
  animation: skeletonShimmer 1.8s ease-in-out infinite 0.6s;
}

@keyframes skeletonShimmer {
  0% { 
    background-position: -200% 0;
    opacity: 1;
  }
  50% { 
    background-position: 200% 0;
    opacity: 0.8;
  }
  100% { 
    background-position: -200% 0;
    opacity: 1;
  }
}

/* -------------------------------------------------------
   12) Global Enhancements & Micro-interactions
   ------------------------------------------------------- */

/* Smooth scrolling for entire app */
* {
  box-sizing: border-box;
}

.pdf-modal *, .pdf-download-delay-modal * {
  scroll-behavior: smooth;
}

/* Enhanced focus states */
.pdf-reader-btn-download:focus,
.pdf-reader-btn-preview:focus,
.pdf-reader-close:focus,
.pdf-page-select:focus {
  outline: 3px solid rgba(26, 182, 133, 0.4);
  outline-offset: 2px;
}

/* Accessibility improvements */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  :root {
    --text-primary: #f7fafc;
    --text-secondary: #e2e8f0;
    --light-gray: #2d3748;
    --medium-gray: #4a5568;
  }
  
  .pdf-reader-modal-content {
    background: rgba(26, 32, 44, 0.95) !important;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  .pdf-reader-toolbar {
    background: rgba(26, 32, 44, 0.9);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
}

/* Selection styling */
::selection {
  background: rgba(26, 182, 133, 0.3);
  color: var(--text-primary);
}

::-moz-selection {
  background: rgba(26, 182, 133, 0.3);
  color: var(--text-primary);
}

/* Custom scrollbar for webkit browsers */
.pdf-reader-canvas-wrap::-webkit-scrollbar {
  width: 12px;
}

.pdf-reader-canvas-wrap::-webkit-scrollbar-track {
  background: rgba(226, 232, 240, 0.3);
  border-radius: 6px;
}

.pdf-reader-canvas-wrap::-webkit-scrollbar-thumb {
  background: var(--primary-gradient);
  border-radius: 6px;
  border: 2px solid transparent;
  background-clip: content-box;
}

.pdf-reader-canvas-wrap::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  background-clip: content-box;
}

/* Page label enhancements */
.pdf-page-label {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(226, 232, 240, 0.8);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.pdf-page-label:hover {
  background: rgba(255, 255, 255, 1);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* Canvas enhancements */
canvas.pdf-page-canvas {
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

canvas.pdf-page-canvas:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

/* Loading shimmer effect for buttons */
.pdf-reader-btn-download:disabled::before,
.pdf-reader-btn-preview:disabled::before {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.1) 0%,
    rgba(255, 255, 255, 0.3) 50%,
    rgba(255, 255, 255, 0.1) 100%
  );
  background-size: 200% 100%;
  animation: buttonShimmer 1.5s infinite;
}

@keyframes buttonShimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* -------------------------------------------------------
   13) Enhanced layout on large screens
   ------------------------------------------------------- */
@media (min-width: 769px) {
  .pdf-reader-wrapper {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    gap: 20px !important;
    margin: 40px auto !important;
  }
  .pdf-reader-wrapper .pdf-reader-btn-download,
  .pdf-reader-wrapper .pdf-reader-btn-preview {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    height: 60px !important;
    padding: 0 40px !important;
    font-size: 22px !important;
    min-width: 240px !important;
    vertical-align: middle !important;
  }
}
  .pdf-reader-wrapper .pdf-reader-btn-preview i.fa,
.pdf-reader-wrapper .pdf-reader-btn-download i.fa {
  margin-left: 8px !important;
  display: inline-block !important;
  font-size: 20px;
}



/* اجعل قائمة الصفحات تظهر بشكل صحيح داخل البوب-أب */
.pdf-reader-popup .pdf-page-select {
  display: inline-flex;      /* يسمح بمحاذاة المحتوى بسهولة */
  align-items: center;       /* محاذاة عمودية */
  justify-content: flex-end; /* محاذاة النص إلى اليمين */
  direction: rtl;            /* اتجاه من اليمين لليسار */
  text-align: right;         /* محاذاة النص داخل الصندوق */
  white-space: nowrap;       /* منع الكسر إلى سطر جديد */
  overflow: visible;         /* إظهار النص كاملاً */
  min-width: 180px;          /* عرض أدنى يكفي لعبارة "صفحة 27 ✓" */
  max-width: 300px;          /* سقف عرض اختياري */
  padding: 8px 12px;         /* حشوة مناسبة حول النص */
  font-size: 14px;           /* حجم خط مقروء */
  color: #333;               /* لون نص يتباين مع الخلفية */
  background: #fff;          /* خلفية واضحة */
  border: 1px solid #ccc;    /* إطار خفيف للصندوق */
  border-radius: 4px;        /* زوايا منحنية */
  box-shadow: 0 2px 6px rgba(0,0,0,0.1); /* ظل خفيف لتمييزه */
  z-index: 10001;            /* فوق عناصر البوب-أب الأخرى */
}






/* Override لقائمة الصفحات داخل Toolbar لإظهار النص كاملاً */

  .pdf-reader-toolbar .pdf-page-select {
    /* أوقف الاقتصاص */
    overflow: visible !important;
    text-overflow: clip !important;
    white-space: nowrap !important;

    /* أفسح عرضاً كافياً */
    min-width: 180px !important;
    max-width: none !important;

    /* يمكنك ضبط padding حسب الحاجة */
    padding: 8px 12px !important;

    /* إذا أردت، عدل flex ليأخذ حجماً ثابتاً */
    flex: none !important;
  }


/* 1) اجعل صندوق المودال خلفيّته صلبة تماماً */
.pdf-download-delay-content {
  background-color: #ffffff !important;
}

/* 2) أفرغ التدرّج الزخرفي من الـpseudo-element */
.pdf-download-delay-content::before {
  background: none !important;
}

/* 3) أرجع نص العداد إلى لون صلب بدل القصّ بالـbackground */
.pdf-delay-timer {
  background: none !important;
  -webkit-background-clip: initial !important;
  background-clip: initial !important;
  -webkit-text-fill-color: var(--primary-color) !important;
}