/* ===================================
   Animations & Transitions
   تأثيرات حركية احترافية
   =================================== */

/* ===================================
   Page Transitions - التنقل السلس
   =================================== */
@keyframes pageEnter {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.page-enter {
  animation: pageEnter 0.2s ease-out;
}

/* ===================================
   Loading Animations - مميزة وليست دوائر غبية
   =================================== */

/* Loading Dots */
.loading-dots {
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.loading-dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  animation: dotPulse 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(1) {
  animation-delay: 0s;
}

.loading-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

@keyframes dotPulse {

  0%,
  80%,
  100% {
    transform: scale(0.6);
    opacity: 0.4;
  }

  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Loading Wave */
.loading-wave {
  display: inline-flex;
  gap: 4px;
  align-items: flex-end;
  height: 40px;
}

.loading-wave span {
  width: 5px;
  height: 20px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-secondary));
  border-radius: 3px;
  animation: waveAnimation 1.2s ease-in-out infinite;
}

.loading-wave span:nth-child(1) {
  animation-delay: 0s;
}

.loading-wave span:nth-child(2) {
  animation-delay: 0.1s;
}

.loading-wave span:nth-child(3) {
  animation-delay: 0.2s;
}

.loading-wave span:nth-child(4) {
  animation-delay: 0.3s;
}

.loading-wave span:nth-child(5) {
  animation-delay: 0.4s;
}

@keyframes waveAnimation {

  0%,
  40%,
  100% {
    height: 20px;
    opacity: 0.5;
  }

  20% {
    height: 40px;
    opacity: 1;
  }
}

/* Loading Orbit */
.loading-orbit {
  position: relative;
  width: 60px;
  height: 60px;
  margin: 0 auto;
}

.loading-orbit span {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  animation: orbitRotate 2s linear infinite;
}

.loading-orbit span:nth-child(1) {
  animation-delay: 0s;
  background: var(--color-primary);
}

.loading-orbit span:nth-child(2) {
  animation-delay: 0.5s;
  background: var(--color-secondary);
}

.loading-orbit span:nth-child(3) {
  animation-delay: 1s;
  background: var(--color-accent);
}

@keyframes orbitRotate {
  0% {
    transform: rotate(0deg) translateX(25px) rotate(0deg);
  }

  100% {
    transform: rotate(360deg) translateX(25px) rotate(-360deg);
  }
}

/* ===================================
   Progress Bar - شريط تقدم احترافي
   =================================== */
.progress-container {
  width: 100%;
  background: var(--glass-bg);
  border-radius: var(--radius-full);
  overflow: hidden;
  height: 8px;
  position: relative;
  backdrop-filter: blur(10px);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary), var(--color-accent));
  background-size: 200% 100%;
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
  animation: progressShine 2s linear infinite;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  animation: progressGlow 1.5s ease-in-out infinite;
}

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

  100% {
    background-position: 200% 0%;
  }
}

@keyframes progressGlow {

  0%,
  100% {
    transform: translateX(-100%);
  }

  50% {
    transform: translateX(100%);
  }
}

/* ===================================
   Toast Notifications - إشعارات منبثقة
   =================================== */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  padding: var(--space-md) var(--space-xl);
  background: white;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  min-width: 300px;
  max-width: 500px;
  opacity: 0;
  transition: all 0.2s ease;
  z-index: 10000;
  pointer-events: none;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.toast-icon {
  font-size: var(--text-2xl);
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.toast-success .toast-icon {
  background: rgba(16, 185, 129, 0.2);
  color: var(--color-success);
}

.toast-error .toast-icon {
  background: rgba(239, 68, 68, 0.2);
  color: var(--color-error);
}

.toast-warning .toast-icon {
  background: rgba(245, 158, 11, 0.2);
  color: var(--color-warning);
}

.toast-info .toast-icon {
  background: rgba(59, 130, 246, 0.2);
  color: var(--color-info);
}

.toast-message {
  flex: 1;
  color: var(--color-text);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
}

/* ===================================
   Drag & Drop Animations
   =================================== */
.upload-zone {
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.upload-zone::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.upload-zone.drag-active {
  border-color: var(--color-primary);
  transform: scale(1.02);
}

.upload-zone.drag-active::before {
  opacity: 0.1;
}

@keyframes uploadPulse {

  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
  }

  50% {
    box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
  }
}

.upload-zone.uploading {
  animation: uploadPulse 2s infinite;
}

/* ===================================
   File Card Animations
   =================================== */
.file-card {
  animation: fileCardEnter 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes fileCardEnter {
  from {
    opacity: 0;
    transform: scale(0.8) translateY(20px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.file-card.removing {
  animation: fileCardExit 0.3s cubic-bezier(0.6, -0.28, 0.735, 0.045) forwards;
}

@keyframes fileCardExit {
  to {
    opacity: 0;
    transform: scale(0.8) translateY(-20px);
  }
}

/* ===================================
   Button Ripple Effect
   =================================== */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::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;
}

.btn:active::after {
  width: 300px;
  height: 300px;
}

/* ===================================
   Skeleton Loading
   =================================== */
.skeleton {
  background: linear-gradient(90deg,
      var(--color-surface) 25%,
      var(--color-surface-light) 50%,
      var(--color-surface) 75%);
  background-size: 200% 100%;
  animation: skeletonLoading 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

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

  100% {
    background-position: -200% 0;
  }
}

/* ===================================
   Success Checkmark Animation
   =================================== */
.success-checkmark {
  width: 80px;
  height: 80px;
  margin: 0 auto;
  position: relative;
}

.success-checkmark circle {
  stroke: var(--color-success);
  stroke-width: 3;
  fill: none;
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  animation: strokeAnimation 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.success-checkmark path {
  stroke: var(--color-success);
  stroke-width: 3;
  fill: none;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: strokeAnimation 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.3s forwards;
}

@keyframes strokeAnimation {
  to {
    stroke-dashoffset: 0;
  }
}

/* ===================================
   Bounce Animation للتنبيهات
   =================================== */
.bounce {
  animation: bounce 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes bounce {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

/* ===================================
   Shake Animation للأخطاء
   =================================== */
.shake {
  animation: shake 0.5s cubic-bezier(0.36, 0.07, 0.19, 0.97);
}

@keyframes shake {

  10%,
  90% {
    transform: translateX(-5px);
  }

  20%,
  80% {
    transform: translateX(5px);
  }

  30%,
  50%,
  70% {
    transform: translateX(-3px);
  }

  40%,
  60% {
    transform: translateX(3px);
  }
}

/* ===================================
   Pulse Animation للإشعارات
   =================================== */
.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}