/**
 * Enhanced Animations System
 * 결과 표시, 마이크로 인터랙션, 전환 효과 애니메이션
 */

/* ==========================================================================
   Animation Variables
   ========================================================================== */

:root {
  /* Animation Durations */
  --anim-fast: 0.15s;
  --anim-base: 0.3s;
  --anim-slow: 0.6s;
  --anim-slower: 1.2s;
  
  /* Easing Functions */
  --ease-spring: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.35);
  --ease-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-sharp: cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Animation States */
  --scale-hover: 1.02;
  --scale-active: 0.98;
  --lift-hover: -2px;
  --lift-active: 0px;
}

/* ==========================================================================
   Loading and Entry Animations
   ========================================================================== */

/* Page Load Animation */
.main-body {
  animation: fadeInUp var(--anim-slow) var(--ease-smooth) forwards;
}

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

/* Staggered Content Animation */
.mobile-input-section {
  animation: slideInLeft var(--anim-base) var(--ease-smooth) 0.2s both;
}

.mobile-button-primary {
  animation: slideInUp var(--anim-base) var(--ease-spring) 0.4s both;
}

.mobile-results-section {
  animation: slideInUp var(--anim-base) var(--ease-smooth) 0.6s both;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Input Field Animations
   ========================================================================== */

.mobile-input {
  transition: all var(--anim-base) var(--ease-smooth);
  position: relative;
}

.mobile-input:focus {
  transform: translateY(-1px);
  box-shadow: 
    0 0 0 3px rgba(59, 130, 246, 0.1),
    0 4px 12px rgba(0, 0, 0, 0.15);
}

.mobile-input:focus + .mobile-label {
  transform: translateY(-2px);
  color: var(--color-primary-600);
}

/* Input Label Float Animation */
.mobile-label {
  transition: all var(--anim-base) var(--ease-smooth);
}

/* Typing Animation for Placeholder */
.mobile-input::placeholder {
  transition: opacity var(--anim-base) var(--ease-smooth);
}

.mobile-input:focus::placeholder {
  opacity: 0.5;
  transform: translateX(4px);
}

/* ==========================================================================
   Button Animations
   ========================================================================== */

.mobile-button-primary {
  transition: all var(--anim-base) var(--ease-spring);
  position: relative;
  overflow: hidden;
}

.mobile-button-primary:hover:not(:disabled) {
  transform: translateY(var(--lift-hover)) scale(var(--scale-hover));
  box-shadow: 
    0 8px 25px rgba(59, 130, 246, 0.3),
    0 4px 12px rgba(0, 0, 0, 0.15);
}

.mobile-button-primary:active {
  transform: translateY(var(--lift-active)) scale(var(--scale-active));
  transition-duration: var(--anim-fast);
}

/* Button Ripple Effect */
.mobile-button-primary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width var(--anim-base), height var(--anim-base);
}

.mobile-button-primary:active::before {
  width: 300px;
  height: 300px;
}

/* Language Toggle Animation */
.lang-toggle {
  transition: all var(--anim-base) var(--ease-spring);
}

.lang-toggle:hover:not(:disabled) {
  transform: translateY(-1px) scale(1.05);
}

.lang-toggle:active {
  transform: scale(0.95);
  transition-duration: var(--anim-fast);
}

/* Theme Toggle Animation */
.theme-toggle {
  transition: all var(--anim-base) var(--ease-spring);
}

.theme-toggle:hover:not(:disabled) {
  transform: translateY(-1px) scale(1.05);
}

.theme-toggle-icon {
  transition: transform var(--anim-base) var(--ease-spring);
}

.theme-toggle:hover .theme-toggle-icon {
  transform: rotate(180deg) scale(1.1);
}

/* ==========================================================================
   Results Display Animations
   ========================================================================== */

/* Results Container Entry */
.mobile-results-section.show {
  animation: resultsReveal var(--anim-slower) var(--ease-spring) forwards;
}

@keyframes resultsReveal {
  0% {
    opacity: 0;
    transform: translateY(40px);
  }
  60% {
    opacity: 0.8;
    transform: translateY(-5px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Score Counter Animation */
.mobile-result.counting {
  animation: scoreReveal var(--anim-slower) var(--ease-bounce) forwards;
}

@keyframes scoreReveal {
  0% {
    opacity: 0;
    transform: scale(0.5);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.1);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* Progress Bar Fill Animation */
.mobile-progress-fill {
  transition: width var(--anim-slower) var(--ease-smooth);
  position: relative;
  overflow: hidden;
}

.mobile-progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  transform: translateX(-100%);
  animation: shimmer 2s ease-in-out infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(100%);
  }
}

/* Explanation Text Animation */
.mobile-explanation {
  animation: explanationSlide var(--anim-base) var(--ease-smooth) 0.8s both;
}

@keyframes explanationSlide {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ==========================================================================
   Share Component Animations
   ========================================================================== */

/* Quick Share Buttons Stagger */
.quick-share-btn {
  transition: all var(--anim-base) var(--ease-spring);
}


/* Button Hover Animations */
.quick-share-btn:hover:not(:disabled) {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 
    0 8px 20px rgba(0, 0, 0, 0.15),
    0 4px 8px rgba(0, 0, 0, 0.1);
}

.quick-share-btn:active {
  transform: translateY(-1px) scale(0.98);
  transition-duration: var(--anim-fast);
}

/* Icon Animations */
.btn-icon {
  transition: transform var(--anim-base) var(--ease-spring);
}

.quick-share-btn:hover .btn-icon {
  transform: scale(1.2) rotate(5deg);
}

.quick-share-btn.primary:hover .btn-icon {
  transform: scale(1.3) rotate(-5deg);
}

/* Loading Animation */
.quick-share-btn.loading .btn-icon,
.quick-share-btn.loading .btn-label {
  animation: pulse var(--anim-slower) ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.4;
  }
  50% {
    opacity: 0.8;
  }
}

/* ==========================================================================
   Modal Animations
   ========================================================================== */

/* Preview Modal Animation */
.share-preview-modal {
  animation: modalFadeIn var(--anim-base) var(--ease-smooth) forwards;
}

.share-preview-modal .preview-modal-content {
  animation: modalSlideUp var(--anim-base) var(--ease-spring) forwards;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    backdrop-filter: blur(0px);
  }
  to {
    opacity: 1;
    backdrop-filter: blur(4px);
  }
}

@keyframes modalSlideUp {
  from {
    opacity: 0;
    transform: translateY(40px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Template Modal Styles */
.story-template-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal, 1100);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4, 16px);
  opacity: 0;
  animation: modalFadeIn var(--anim-base) var(--ease-smooth) forwards;
}

.story-template-modal.show {
  opacity: 1;
}

.template-modal-content {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  max-width: 500px;
  width: 100%;
  max-height: 80vh;
  overflow: hidden;
  transform: scale(0.3);
  animation: modalBounceIn var(--anim-slow) var(--ease-bounce) forwards;
}

.template-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--border);
  background: var(--muted);
}

.template-header h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  font-family: var(--font-sans);
  color: var(--card-foreground);
  margin: 0;
}

.template-close-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: var(--radius-full);
  background: transparent;
  color: var(--muted-foreground);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  cursor: pointer;
  transition: all var(--transition-base);
}

.template-close-btn:hover {
  background: var(--accent);
  color: var(--accent-foreground);
}

.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-3);
  padding: var(--space-4);
  max-height: 400px;
  overflow-y: auto;
}

.template-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--card);
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: var(--font-sans);
}

.template-option:hover {
  border-color: var(--ring);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.template-option:focus {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
}

.template-preview {
  width: 80px;
  height: 120px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.template-elements {
  font-size: 18px;
  opacity: 0.8;
}

.template-name {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--card-foreground);
  text-align: center;
}

/* Mobile responsive */
@media (max-width: 767px) {
  .story-template-modal {
    padding: var(--space-2);
  }
  
  .template-modal-content {
    max-width: none;
    margin: 0;
    border-radius: var(--radius-lg);
  }
  
  .template-header {
    padding: var(--space-3) var(--space-4);
  }
  
  .template-header h3 {
    font-size: var(--text-base);
  }
  
  .template-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
    padding: var(--space-3);
  }
  
  .template-option {
    padding: var(--space-2);
  }
  
  .template-preview {
    width: 60px;
    height: 90px;
  }
}

@keyframes modalBounceIn {
  0% {
    opacity: 0;
    transform: scale(0.3);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.05);
  }
  70% {
    transform: scale(0.9);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

/* ==========================================================================
   Special Effects
   ========================================================================== */

/* Floating Animation for Decorative Elements */
.floating {
  animation: float 3s ease-in-out infinite;
}

.floating:nth-child(even) {
  animation-delay: -1.5s;
  animation-direction: reverse;
}

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

/* Glow Effect */
.glow-effect {
  position: relative;
}

.glow-effect::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(45deg, var(--color-primary-500), var(--color-secondary-500));
  border-radius: inherit;
  opacity: 0;
  transition: opacity var(--anim-base);
  z-index: -1;
  filter: blur(8px);
}

.glow-effect:hover::before {
  opacity: 0.3;
}

/* Sparkle Animation */
.sparkle {
  position: relative;
  overflow: hidden;
}

.sparkle::after {
  content: '✨';
  position: absolute;
  top: -10px;
  right: -10px;
  font-size: 14px;
  opacity: 0;
  animation: sparkleFloat 2s ease-in-out infinite;
}

@keyframes sparkleFloat {
  0%, 100% {
    opacity: 0;
    transform: translateY(0) rotate(0deg);
  }
  50% {
    opacity: 1;
    transform: translateY(-15px) rotate(180deg);
  }
}

/* ==========================================================================
   Theme Transition Animations
   ========================================================================== */

/* Theme Switch Animation */
.theme-switching * {
  transition: all var(--anim-fast) ease !important;
}

/* Smooth color transitions */
.theme-transition {
  transition: 
    background-color var(--anim-base) var(--ease-smooth),
    color var(--anim-base) var(--ease-smooth),
    border-color var(--anim-base) var(--ease-smooth),
    box-shadow var(--anim-base) var(--ease-smooth);
}

/* ==========================================================================
   Micro-Interactions
   ========================================================================== */

/* Success Feedback Animation */
.success-feedback {
  animation: successPop var(--anim-base) var(--ease-spring) forwards;
}

@keyframes successPop {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

/* Error Shake Animation */
.error-shake {
  animation: shake var(--anim-base) ease-in-out forwards;
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}

/* Attention Seeking Animation */
.attention-pulse {
  animation: attentionPulse 2s ease-in-out infinite;
}

@keyframes attentionPulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
  }
  50% {
    transform: scale(1.02);
    box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
  }
}

/* ==========================================================================
   Responsive Animation Adjustments
   ========================================================================== */

/* Mobile Animation Adjustments */
@media (max-width: 767px) {
  :root {
    --anim-base: 0.25s;
    --anim-slow: 0.5s;
    --anim-slower: 1s;
    --scale-hover: 1.01;
    --lift-hover: -1px;
  }
  
  .mobile-button-primary:hover:not(:disabled) {
    transform: scale(var(--scale-hover));
  }
}

/* ==========================================================================
   Accessibility and Performance
   ========================================================================== */

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }
  
  .floating,
  .sparkle::after,
  .mobile-progress-fill::after {
    animation: none !important;
  }
}

/* High Performance Mode */
@media (prefers-reduced-data: reduce) {
  .mobile-progress-fill::after,
  .glow-effect::before,
  .sparkle::after {
    display: none;
  }
}

/* ==========================================================================
   Animation Utilities
   ========================================================================== */

/* Animation Control Classes */
.anim-paused {
  animation-play-state: paused !important;
}

.anim-running {
  animation-play-state: running !important;
}

.no-transition {
  transition: none !important;
}

.fast-transition {
  transition-duration: var(--anim-fast) !important;
}

.slow-transition {
  transition-duration: var(--anim-slower) !important;
}

/* Visibility Animation Classes */
.fade-in {
  animation: fadeIn var(--anim-base) var(--ease-smooth) forwards;
}

.fade-out {
  animation: fadeOut var(--anim-base) var(--ease-smooth) forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeOut {
  from { opacity: 1; }
  to { opacity: 0; }
}