/**
 * Enhanced Physics-Based Animation Styles
 * Supports the SwipePhysics engine and EnhancedSwipeCard component
 */

:root {
  /* Physics Animation Variables */
  --spring-gentle: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --spring-bouncy: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --spring-wobbly: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --spring-stiff: cubic-bezier(0.55, 0.055, 0.675, 0.19);
  --spring-smooth: cubic-bezier(0.4, 0.0, 0.2, 1);
  
  /* Enhanced Color Palette */
  --physics-primary: #667eea;
  --physics-success: #f093fb;
  --physics-danger: #ffecd2;
  --physics-warning: #fcb69f;
  
  /* Gradient Definitions */
  --gradient-physics-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-physics-success: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-physics-danger: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
  --gradient-physics-warning: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
  
  /* Animation Timing */
  --physics-duration-fast: 0.2s;
  --physics-duration-normal: 0.4s;
  --physics-duration-slow: 0.8s;
  
  /* 3D Perspective */
  --physics-perspective: 1200px;
  --physics-depth: 100px;
}

/* Enhanced Card Styles */
.enhanced-card {
  position: relative;
  transform-style: preserve-3d;
  backface-visibility: hidden;
  will-change: transform, filter, opacity;
  
  /* Subtle glow effect */
  &::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-physics-primary);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity var(--physics-duration-normal) var(--spring-smooth);
  }
  
  &.enhanced-swiping::before {
    opacity: 0.3;
  }
}

/* Enhanced Loading Animation */
.enhanced-loading {
  .loading-indicator {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    transition: all var(--physics-duration-normal) var(--spring-wobbly);
  }
  
  .physics-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(102, 126, 234, 0.2);
    border-top-color: var(--physics-primary);
    border-radius: 50%;
    animation: physicsSpinnerRotate 1s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
    position: relative;
    
    &::after {
      content: '';
      position: absolute;
      top: 2px;
      left: 2px;
      right: 2px;
      bottom: 2px;
      border: 2px solid transparent;
      border-top-color: rgba(102, 126, 234, 0.6);
      border-radius: 50%;
      animation: physicsSpinnerRotate 0.6s linear infinite reverse;
    }
  }
  
  .loading-text {
    margin-top: 15px;
    font-weight: 600;
    color: var(--physics-primary);
    animation: loadingPulse 1.5s ease-in-out infinite;
  }
}

@keyframes physicsSpinnerRotate {
  0% { transform: rotate(0deg) scale(1); }
  50% { transform: rotate(180deg) scale(1.1); }
  100% { transform: rotate(360deg) scale(1); }
}

@keyframes loadingPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.05); }
}

/* Enhanced Action Hints */
.enhanced-hint {
  backdrop-filter: blur(12px);
  background: rgba(0, 0, 0, 0.85);
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  
  transform: scale(0.8) translateZ(0);
  transition: all var(--physics-duration-normal) var(--spring-wobbly);
  
  .hint-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--gradient-physics-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    
    &::before {
      content: '';
      width: 12px;
      height: 12px;
      background: white;
      border-radius: 50%;
      animation: hintPulse 2s ease-in-out infinite;
    }
  }
  
  .hint-text {
    font-weight: 600;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  }
  
  &.enhanced-visible {
    transform: scale(1) translateZ(var(--physics-depth));
    
    .hint-icon::before {
      animation-duration: 0.8s;
    }
  }
  
  /* Direction-specific styling */
  &.left-hint {
    border-left-color: #ff6b6b;
    .hint-icon { background: linear-gradient(135deg, #ff6b6b, #ee5a52); }
  }
  
  &.right-hint {
    border-right-color: #51cf66;
    .hint-icon { background: linear-gradient(135deg, #51cf66, #40c057); }
  }
  
  &.up-hint {
    border-top-color: #339af0;
    .hint-icon { background: linear-gradient(135deg, #339af0, #228be6); }
  }
  
  &.down-hint {
    border-bottom-color: #ffb84d;
    .hint-icon { background: linear-gradient(135deg, #ffb84d, #fd7e14); }
  }
}

@keyframes hintPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

/* Enhanced Decision Indicators */
.enhanced-decision {
  transform: translate(-50%, -50%) scale(0) rotateZ(0deg);
  transition: all var(--physics-duration-normal) var(--spring-bouncy);
  filter: drop-shadow(0 0 20px rgba(0, 0, 0, 0.5));
  opacity: 0;
  visibility: hidden;
  
  .decision-icon {
    font-size: 4rem;
    animation: decisionFloat 3s ease-in-out infinite;
    text-shadow: 0 0 30px currentColor;
  }
  
  .decision-particles {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
  }
  
  .particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: currentColor;
    border-radius: 50%;
    opacity: 0;
    animation: particleBurst 1s ease-out forwards;
    
    @for $i from 1 through 8 {
      &:nth-child(#{$i}) {
        transform: rotate(#{$i * 45}deg) translateX(40px);
        animation-delay: #{$i * 0.05}s;
      }
    }
  }
  
  &.enhanced-visible {
    transform: translate(-50%, -50%) scale(1) rotateZ(360deg);
    opacity: 1;
    visibility: visible;
  }
  
  /* Direction-specific colors */
  &.decision-left {
    color: #ff6b6b;
    .decision-icon { animation-duration: 2s; }
  }
  
  &.decision-right {
    color: #51cf66;
    .decision-icon { animation-duration: 2.5s; }
  }
  
  &.decision-up {
    color: #339af0;
    .decision-icon { animation-duration: 3s; }
  }
  
  &.decision-down {
    color: #ffb84d;
    .decision-icon { animation-duration: 2.2s; }
  }
}

@keyframes decisionFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-10px) scale(1.1); }
}

@keyframes particleBurst {
  0% {
    opacity: 1;
    transform: rotate(var(--rotation, 0deg)) translateX(0) scale(1);
  }
  100% {
    opacity: 0;
    transform: rotate(var(--rotation, 0deg)) translateX(60px) scale(0);
  }
}

/* Enhanced Swipe Container */
.swipe-container {
  perspective: var(--physics-perspective);
  transform-style: preserve-3d;
  
  &::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: var(--gradient-physics-primary);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    filter: blur(20px);
    transition: opacity var(--physics-duration-slow) var(--spring-smooth);
  }
  
}

/* Physics-based Button Enhancements */
.action-btn {
  position: relative;
  overflow: hidden;
  transform: translateZ(0);
  transition: all var(--physics-duration-normal) var(--spring-wobbly);
  
  &::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all var(--physics-duration-fast) ease-out;
  }
  
  &:active::before {
    width: 300px;
    height: 300px;
  }
  
  &:hover {
    transform: translateY(-8px) scale(1.05) translateZ(var(--physics-depth));
    box-shadow: 
      0 20px 40px rgba(0, 0, 0, 0.2),
      0 0 0 1px rgba(255, 255, 255, 0.1);
  }
  
  &:active {
    transform: translateY(-4px) scale(0.98) translateZ(calc(var(--physics-depth) / 2));
    transition-duration: var(--physics-duration-fast);
  }
}

/* Enhanced Modal Animations */
.modal {
  backdrop-filter: blur(15px);
  
  &.show {
    animation: modalFadeIn var(--physics-duration-slow) var(--spring-wobbly);
  }
  
  .modal-content {
    transform: scale(0.8) translateY(50px) rotateX(10deg);
    transition: all var(--physics-duration-slow) var(--spring-wobbly);
  }
  
  &.show .modal-content {
    transform: scale(1) translateY(0) rotateX(0deg);
  }
}

@keyframes modalFadeIn {
  0% {
    opacity: 0;
    backdrop-filter: blur(0px);
  }
  100% {
    opacity: 1;
    backdrop-filter: blur(15px);
  }
}

/* Enhanced Toast Notifications */
.toast {
  backdrop-filter: blur(10px);
  background: rgba(0, 0, 0, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transform: translateX(-50%) translateY(100px) scale(0.8);
  transition: all var(--physics-duration-normal) var(--spring-bouncy);
  
  &.show {
    transform: translateX(-50%) translateY(0) scale(1);
  }
  
  &::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-physics-primary);
    border-radius: 50px 50px 0 0;
  }
}

/* Performance Optimizations */
.enhanced-card,
.enhanced-hint,
.enhanced-decision,
.action-btn {
  will-change: transform, opacity, filter;
  backface-visibility: hidden;
  transform-style: preserve-3d;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
  :root {
    --physics-perspective: 800px;
    --physics-depth: 50px;
    --physics-duration-normal: 0.3s;
  }
  
  .enhanced-hint {
    padding: 8px 16px;
    font-size: 0.9rem;
    
    .hint-icon {
      width: 20px;
      height: 20px;
      
      &::before {
        width: 10px;
        height: 10px;
      }
    }
  }
  
  .enhanced-decision .decision-icon {
    font-size: 3rem;
  }
  
  .particle {
    width: 4px;
    height: 4px;
  }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  
  .enhanced-card::before,
  .swipe-container::before {
    display: none;
  }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
  .enhanced-hint {
    background: rgba(0, 0, 0, 0.95);
    border-width: 3px;
  }
  
  .enhanced-decision {
    filter: contrast(1.5) drop-shadow(0 0 10px rgba(0, 0, 0, 0.8));
  }
}

/* Print Styles */
@media print {
  .enhanced-hint,
  .enhanced-decision,
  .physics-spinner {
    display: none !important;
  }
  
  .enhanced-card {
    transform: none !important;
    filter: none !important;
  }
}