/* Arena Battle App */

#arena-app {
  min-height: 100vh;
  background: var(--background);
  padding: var(--spacing-2xl);
  overflow-x: hidden;
}

.arena-container {
  width: 100%;
  max-width: 80rem;
  margin-inline: auto;
}

/* Battle View */
.battle-view {
  display: grid;
  gap: 2rem;
  transition: opacity 0.4s ease;
}

.battle-view.transitioning {
  opacity: 0;
}

@media (min-width: 768px) {
  .battle-view {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

/* Image Cards */
.image-card {
  position: relative;
  aspect-ratio: 1;
  min-height: 300px;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  touch-action: none;
  cursor: grab;
  transition: transform var(--transition-normal), 
              opacity var(--transition-normal), 
              box-shadow var(--transition-normal);
  background: var(--brand-gradient);
  box-shadow: var(--shadow-lg);
  animation: card-float 3s ease-in-out infinite;
}

.image-card[data-side="right"] {
  animation-delay: -1.5s;
}

@keyframes card-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.image-card.dragging,
.image-card.winner,
.image-card.loser {
  animation: none;
}

@media (hover: hover) {
  .image-card:hover:not(.dragging):not(.winner):not(.loser) {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    animation: none;
  }
}

.image-card.loading {
  background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #4facfe);
  background-size: 400% 400%;
  animation: gradient-shift 3s ease infinite;
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.image-card.dragging {
  cursor: grabbing;
  z-index: 50;
  transition: none;
}

.image-card.target {
  z-index: 30;
  transform: scale(0.95);
  opacity: 0.8;
}

.image-card.loser {
  transition: all 0.5s ease;
  opacity: 0;
  transform: translateY(20px) scale(0.9);
  pointer-events: none;
}

.image-card.winner {
  cursor: default;
}

@media (min-width: 640px) {
  .image-card {
    min-height: 400px;
  }
}

@media (min-width: 768px) {
  .image-card {
    min-height: 450px;
  }
}

@media (min-width: 1024px) {
  .image-card {
    min-height: 500px;
  }
}

/* Image Loading */
.image-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
}

.loading-spinner {
  z-index: 5;
  transition: opacity var(--transition-normal);
}

.loading-spinner.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-spinner::before {
  content: '';
  width: 4rem;
  height: 4rem;
  border: 5px solid rgba(255, 255, 255, 0.15);
  border-top-color: rgba(255, 255, 255, 0.95);
  border-right-color: rgba(255, 255, 255, 0.75);
  border-radius: 50%;
  animation: spinner-rotate 0.9s cubic-bezier(0.5, 0, 0.5, 1) infinite;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1));
}

@keyframes spinner-rotate {
  to { transform: rotate(360deg); }
}

.battle-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--transition-normal), transform 0.5s ease;
  opacity: 0;
}

.battle-image.loaded {
  opacity: 1;
}

/* Fist Emoji */
.fist-emoji {
  font-size: 6rem;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 60;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
}

.image-card.dragging .fist-emoji {
  opacity: 1;
}

@media (min-width: 768px) {
  .fist-emoji {
    font-size: 8rem;
  }
}

/* Target Overlay */
.target-overlay {
  background: rgba(239, 68, 68, 0.3);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--transition-normal);
  pointer-events: none;
  z-index: 20;
}

.image-card.target .target-overlay {
  opacity: 1;
}

/* Image Info */
.image-info {
  position: absolute;
  inset: auto 0 0;
  padding: var(--spacing-lg);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent);
  gap: var(--spacing-md);
  z-index: 10;
}

/* Hide image info when reveal feature is disabled */
#arena-app[data-enable-reveal="false"] .image-info {
  display: none;
}

/* Card Action Buttons */
.card-actions {
  position: absolute;
  inset: auto var(--spacing-lg) var(--spacing-lg) auto;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  z-index: 15;
  opacity: 0;
  transform: translateX(10px);
  transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.image-card:hover .card-actions,
.image-card.winner .card-actions {
  opacity: 1;
  transform: translateX(0);
}

@media (hover: none) {
  .card-actions {
    opacity: 1;
    transform: none;
  }
}

.image-card.dragging .card-actions,
.image-card.target .card-actions {
  opacity: 0;
  pointer-events: none;
}

.action-btn {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.action-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.action-btn svg {
  color: #374151;
  transition: color var(--transition-fast);
}

.reveal-btn:hover svg {
  color: #3b82f6;
}

.see-more-btn:hover svg {
  color: #10b981;
}

/* Avatar */
.avatar-container {
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  overflow: visible;
  flex-shrink: 0;
}

.avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: filter var(--transition-normal);
  filter: blur(2px);
  border-radius: var(--radius-full);
}

.avatar-container.revealed .avatar {
  filter: blur(0);
}

.avatar-blur {
  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(1px);
  transition: opacity var(--transition-normal);
  border-radius: var(--radius-full);
}

.avatar-container.revealed .avatar-blur {
  opacity: 0;
}

/* Author Details */
.author-details {
  flex: 1;
  min-width: 0;
}

.author-name-container {
  gap: 0.25rem;
}

.twitter-logo {
  width: 0.7rem;
  height: 0.7rem;
  color: white;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.author-name {
  color: white;
  font-weight: 500;
  font-size: 0.875rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.author-name.redacted {
  letter-spacing: 0.1em;
  opacity: 0.5;
  font-family: monospace;
}

.win-streak {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.75rem;
}

/* Skip Container - Hidden */
.skip-container {
  display: none;
}

/* Mobile Adjustments */
@media (max-width: 640px) {
  .image-info {
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
  }

  .avatar-container {
    width: 2rem;
    height: 2rem;
  }

  .twitter-logo {
    width: 0.625rem;
    height: 0.625rem;
  }

  .author-name {
    font-size: 0.8125rem;
  }

  .win-streak {
    font-size: 0.6875rem;
  }
}

@media (max-width: 768px) {
  .card-actions {
    inset: auto 0.75rem 0.75rem auto;
    gap: 0.375rem;
  }
  
  .action-btn {
    width: 2.25rem;
    height: 2.25rem;
  }
  
  .action-btn svg {
    width: 18px;
    height: 18px;
  }
}

/* Tutorial Hints */
.drag-hint {
  position: absolute;
  inset: auto 10% 10% auto;
  z-index: 70;
  text-align: center;
  pointer-events: none;
}

.hint-emoji {
  font-size: 3rem;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
}

@media (max-width: 767px) {
  .drag-hint-left .hint-emoji.dragging-demo {
    animation: hint-drag-down 1.2s ease-in-out;
  }
  
  .drag-hint-right .hint-emoji.dragging-demo {
    animation: hint-drag-up 1.2s ease-in-out;
  }
}

@media (min-width: 768px) {
  .drag-hint-left .hint-emoji.dragging-demo {
    animation: hint-drag-right 1.2s ease-in-out;
  }
  
  .drag-hint-right .hint-emoji.dragging-demo {
    animation: hint-drag-left 1.2s ease-in-out;
  }
}

@keyframes hint-drag-down {
  0%, 15% { opacity: 0; transform: translateY(0); }
  85% { opacity: 1; transform: translateY(40px); }
  100% { opacity: 0; transform: translateY(40px); }
}

@keyframes hint-drag-up {
  0%, 15% { opacity: 0; transform: translateY(0); }
  85% { opacity: 1; transform: translateY(-40px); }
  100% { opacity: 0; transform: translateY(-40px); }
}

@keyframes hint-drag-right {
  0%, 15% { opacity: 0; transform: translateX(0); }
  85% { opacity: 1; transform: translateX(40px); }
  100% { opacity: 0; transform: translateX(40px); }
}

@keyframes hint-drag-left {
  0%, 15% { opacity: 0; transform: translateX(0); }
  85% { opacity: 1; transform: translateX(-40px); }
  100% { opacity: 0; transform: translateX(-40px); }
}

.image-card.tutorial-shake {
  animation: tutorial-shake 0.4s ease;
}

@keyframes tutorial-shake {
  0%, 100% { transform: translateX(0); }
  25%, 75% { transform: translateX(-4px); }
  50% { transform: translateX(4px); }
}

/* Welcome Overlay */
.welcome-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  padding: var(--spacing-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.welcome-overlay.hidden {
  display: none;
}

.welcome-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.welcome-overlay-bg {
  background: var(--brand-gradient-opacity);
  backdrop-filter: blur(10px);
}

.welcome-content {
  position: relative;
  max-width: 32rem;
  width: 100%;
  background: white;
  border-radius: var(--radius-3xl);
  padding: 2.5rem var(--spacing-2xl);
  text-align: center;
  box-shadow: var(--shadow-2xl);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.welcome-overlay.active .welcome-content {
  transform: scale(1);
}

.welcome-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.welcome-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--foreground);
  margin-bottom: var(--spacing-md);
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.welcome-description {
  font-size: 1.125rem;
  color: var(--muted-foreground);
  line-height: 1.6;
  margin-bottom: 2rem;
  max-width: 28rem;
  margin-inline: auto;
}

.welcome-demo {
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
  padding: var(--spacing-2xl) var(--spacing-xl);
  background: rgba(102, 126, 234, 0.08);
  border-radius: 1.25rem;
}

.demo-card {
  width: 6rem;
  height: 6rem;
  background: var(--brand-gradient);
  border-radius: var(--radius-2xl);
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
  position: relative;
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.demo-card-left {
  animation: demo-drag 2.5s ease-in-out infinite;
  z-index: 2;
}

.demo-card-right {
  z-index: 1;
  animation: demo-fade 2.5s ease-in-out infinite;
}

@keyframes demo-drag {
  0%, 20% { transform: translateX(0); opacity: 1; }
  50% { transform: translateX(50px); opacity: 1; }
  70% { transform: translateX(50px); opacity: 0; }
  70.01%, 100% { transform: translateX(0); opacity: 0; }
}

@keyframes demo-fade {
  0%, 40% { opacity: 1; transform: scale(1); }
  50%, 65% { opacity: 0.4; transform: scale(0.95); }
  70%, 100% { opacity: 1; transform: scale(1); }
}

.demo-emoji {
  font-size: 2.5rem;
  position: absolute;
  inset: auto 8% 8% auto;
  animation: demo-emoji 2.5s ease-in-out infinite;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.3));
}

@keyframes demo-emoji {
  0%, 15% { opacity: 0; }
  20%, 65% { opacity: 1; }
  70%, 100% { opacity: 0; }
}

.welcome-start-btn {
  background: var(--brand-gradient);
  color: white;
  font-weight: 700;
  font-size: 1.25rem;
  padding: var(--spacing-lg) 3rem;
  border-radius: var(--radius-2xl);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-brand-lg);
  transition: all var(--transition-normal);
}

.welcome-start-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-brand-xl);
}

@media (max-width: 640px) {
  .welcome-content {
    padding: var(--spacing-2xl) var(--spacing-xl);
    max-width: calc(100vw - 2rem);
  }
  
  .welcome-title {
    font-size: 1.5rem;
  }
  
  .welcome-description {
    font-size: 1rem;
  }
  
  .demo-card {
    width: 5rem;
    height: 5rem;
  }
  
  .demo-emoji {
    font-size: 2rem;
  }
  
  .welcome-start-btn {
    font-size: 1.125rem;
    padding: 0.875rem 2.5rem;
  }
  
  .welcome-demo {
    padding: var(--spacing-xl) var(--spacing-lg);
    gap: var(--spacing-lg);
  }
}