/**
 * Advanced Animations & Transitions
 * All animation keyframes and interactive effects
 */

/* ===== Keyframe Animations ===== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0%, 100% { 
    transform: scale(1); 
    opacity: 1;
  }
  50% { 
    transform: scale(1.05); 
    opacity: 0.8;
  }
}

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

@keyframes ripple {
  to {
    transform: translate(-50%, -50%) scale(4);
    opacity: 0;
  }
}

@keyframes float {
  0%, 100% { 
    transform: translateY(0); 
  }
  50% { 
    transform: translateY(-10px); 
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* ===== Loading Animations ===== */

/* Skeleton loader */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--gray-100) 25%,
    var(--gray-200) 50%,
    var(--gray-100) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 16px;
  margin-bottom: 8px;
}

.skeleton-title {
  height: 24px;
  width: 60%;
  margin-bottom: 12px;
}

.skeleton-card {
  height: 200px;
  width: 100%;
}

/* Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--gray-200);
  border-top-color: var(--primary-500);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

/* ===== Interactive Effects ===== */

/* Ripple effect for buttons */
.ripple-effect {
  position: relative;
  overflow: hidden;
}

.ripple-effect::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  background: rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  animation: ripple 0.6s ease-out;
  pointer-events: none;
}

.ripple-effect:active::after {
  animation: ripple 0.3s ease-out;
}

/* Hover lift */
.hover-lift {
  transition: transform var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
}

/* Hover scale */
.hover-scale {
  transition: transform var(--transition-base);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* Hover glow */
.hover-glow {
  transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(147, 51, 234, 0.5);
}

/* ===== Page Transitions ===== */

.page-fade-in {
  animation: fadeIn 0.5s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.5s ease-out;
}

.slide-in-left {
  animation: slideInLeft 0.5s ease-out;
}

.scale-in {
  animation: scaleIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* ===== Stagger Animations ===== */

.stagger-item {
  opacity: 0;
  animation: fadeIn 0.5s ease-out forwards;
}

.stagger-item:nth-child(1) { animation-delay: 0.1s; }
.stagger-item:nth-child(2) { animation-delay: 0.2s; }
.stagger-item:nth-child(3) { animation-delay: 0.3s; }
.stagger-item:nth-child(4) { animation-delay: 0.4s; }
.stagger-item:nth-child(5) { animation-delay: 0.5s; }
.stagger-item:nth-child(6) { animation-delay: 0.6s; }

/* ===== Attention Seekers ===== */

.animate-bounce {
  animation: bounce 1s infinite;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}