:root {
  --primary-color: #7c3aed;       
  --hover-color: #5b21b6;        
  --bg-color: #f8fafc;            
  --surface-color: #cccdec;       
  --text-primary: #1e293b;        
  --text-secondary: #64748b;      
}

body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  margin: 0;
  padding: 1rem;
  background: var(--bg-color);
  color: var(--text-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  line-height: 1.5;
  background: linear-gradient(45deg, 
  #ff6b6b, 
  #ff8e8e, 
  #4ecdc4, 
  #ffe66d);
background-size: 400% 400%;
animation: gradientFlow 10s ease infinite;
}

.app-container {
  text-align: center;
  background: white;
  padding: 1.5rem;
  border-radius: 1.25rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  width: 100%;
  max-width: 500px;
  margin: 1rem;
  transition: transform 0.3s ease;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin: 1.25rem 0;
}

.category-btn {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 0.875rem;
  border-radius: 0.75rem;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 1rem;
}

.category-btn:hover {
  background: var(--hover-color);
  transform: translateY(-2px);
  /* Start of code from MDN Web Docs */
  box-shadow: 0 4px 12px rgba(92, 33, 182, 0.2);
  /* End of code from MDN Web Docs */
}

.result-card {
  position: relative;
  background: var(--surface-color);
  border-radius: 1rem;
  padding: 1.25rem;
  margin-top: 1.25rem;
  opacity: 0;
  transform: scale(0.95);
  /* Start of code from MDN Web Docs */
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  /* End of code from MDN Web Docs */
}

.result-card.visible {
  opacity: 1;
  transform: scale(1);
}

.result-image {
  width: 100%;
  height: 200px;
  border-radius: 0.75rem;
  object-fit: cover;
  margin: 1rem 0;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.3s ease 0.2s;
}

.result-image.loaded {
  opacity: 1;
  transform: translateY(0);
}


.result-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  display: none;
}

.loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.dot-flashing {
  position: relative;
  width: 60px;
  height: 20px;
}

.dot-flashing::before,
.dot-flashing::after {
  content: '';
  position: absolute;
  top: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--primary-color);
  animation: dotFlashing 1s infinite linear;
}

@keyframes dotFlashing {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.3; }
  40% { transform: translateY(-10px); opacity: 1; }
}

.loading-text {
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: 0.05em;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 0.3; }
}

.retry-btn {
  background: none;
  border: 2px solid var(--primary-color);
  color: var(--primary-color);
  padding: 0.5rem 1.25rem;
  border-radius: 2rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 600;
  margin-top: 0.75rem;
}

.retry-btn:hover {
  background: var(--primary-color);
  color: white;
}

@media (max-width: 1050px) {
  .app-container {
    max-width: 90%;
    padding: 1.25rem;
  }
}

@media (max-width: 800px) {
  .category-grid {
    grid-template-columns: 1fr;
  }

  .category-btn {
    padding: 1rem;
    font-size: 1.05rem;
  }

  .result-image {
    height: 180px;
  }
}

@media (max-width: 600px) {
  body {
    padding: 0.5rem;
  }

  .app-container {
    border-radius: 1rem;
    padding: 1rem;
    margin: 0.5rem;
  }

  .category-btn {
    font-size: 0.95rem;
    padding: 0.75rem;
  }

  .result-text {
    font-size: 1.1rem;
  }

  .retry-btn {
    padding: 0.5rem 1rem;
  }
}


.hidden {
  display: none;
}

.text-center {
  text-align: center;
}

.subtitle {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

@keyframes gradientFlow {
  0% { background-position: 0% 50% }
  50% { background-position: 100% 50% }
  100% { background-position: 0% 50% }
}