:root {
  --primary-color: #3f51b5;
  --secondary-color: #303f9f;
  --accent-color: #ff4081;
  --background-color: #f5f7fa;
  --card-bg-color: #ffffff;
  --text-color: #37474f;
  --border-color: #e0e6ed;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --border-radius: 6px;
  --font-primary: 'Roboto', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 2rem;
}

h1 {
  text-align: center;
  color: var(--primary-color);
  margin-bottom: 2rem;
  font-weight: 500;
  letter-spacing: 0.5px;
}

h2 {
  color: var(--secondary-color);
  font-weight: 500;
  margin-bottom: 1rem;
}

.translation-area {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 2rem;
}

.input-section, .output-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

select {
  padding: 0.75rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  background-color: var(--card-bg-color);
  font-size: 1rem;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 1em;
  box-shadow: var(--shadow);
  transition: border-color 0.2s, box-shadow 0.2s;
}

select:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.2);
}

textarea {
  height: 200px;
  padding: 1rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  resize: none;
  font-size: 1rem;
  background-color: var(--card-bg-color);
  box-shadow: var(--shadow);
  transition: border-color 0.2s, box-shadow 0.2s;
}

textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.2);
}

.swap-btn {
  background: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  cursor: pointer;
  padding: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  transform: rotate(90deg);
  box-shadow: var(--shadow);
}

.swap-btn:hover {
  transform: rotate(90deg) scale(1.1);
  background-color: var(--primary-color);
}

.swap-btn:hover svg {
  color: white;
}

.swap-btn svg {
  color: var(--primary-color);
  transition: color 0.3s ease;
}

.translate-btn {
  display: block;
  width: 100%;
  padding: 1rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
}

.translate-btn:hover {
  background-color: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.translate-btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow);
}

.module-header {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  background-color: var(--card-bg-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  transition: background-color 0.3s ease;
  margin-bottom: 0;
}

.module-header:hover {
  background-color: rgba(63, 81, 181, 0.05);
}

.module-header h2 {
  margin-bottom: 0;
}

.module-header .toggle-icon {
  transition: transform 0.3s ease;
  color: var(--primary-color);
}

.module-header .toggle-icon.collapsed {
  transform: rotate(-90deg);
}

.module-content {
  transition: all 0.3s ease;
  max-height: 2000px;
  opacity: 1;
  overflow: hidden;
  margin-top: 1rem;
  background-color: var(--card-bg-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

.module-content.collapsed {
  max-height: 0;
  opacity: 0;
  padding-top: 0;
  padding-bottom: 0;
  margin-top: 0;
  margin-bottom: 0;
  box-shadow: none;
}

.json-formatter, .image-generator, .sql-studio {
  margin-top: 2rem;
}

.json-formatter-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}

.json-formatter-btn, .sql-btn, .generate-btn {
  padding: 0.75rem 1.25rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius);
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
}

.json-formatter-btn:hover, .sql-btn:hover, .generate-btn:hover {
  background-color: var(--secondary-color);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.json-formatter-btn:active, .sql-btn:active, .generate-btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow);
}

.json-input, .json-output, .image-prompt, .sql-input, .sql-output {
  width: 100%;
  padding: 1rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  font-size: 1rem;
  background-color: var(--card-bg-color);
  transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.05);
}

.json-input:focus, .image-prompt:focus, .sql-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.2);
}

.error-message {
  color: var(--accent-color);
  margin-top: 0.75rem;
  font-size: 0.9rem;
}

.json-output.error {
  border-color: var(--accent-color);
}

.image-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.aspect-ratio, .seed-value {
  padding: 0.75rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  font-size: 1rem;
  background-color: var(--card-bg-color);
  box-shadow: var(--shadow);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.aspect-ratio:focus, .seed-value:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(63, 81, 181, 0.2);
}

.seed-value {
  width: 150px;
}

.image-result {
  position: relative;
  min-height: 300px;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: rgba(0, 0, 0, 0.02);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(63, 81, 181, 0.1);
  border-left-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 1rem;
}

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

.sql-templates {
  margin-bottom: 1.5rem;
}

.sql-templates select {
  width: 100%;
}

.history-item {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  background-color: var(--card-bg-color);
}

.history-item:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.sql-output table {
  border-collapse: collapse;
  width: 100%;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.sql-output th, .sql-output td {
  border: 1px solid var(--border-color);
  padding: 10px;
  text-align: left;
}

.sql-output th {
  background-color: rgba(63, 81, 181, 0.1);
  color: var(--primary-color);
  font-weight: 500;
}

.sql-output tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.02);
}

.sql-output tr:hover {
  background-color: rgba(63, 81, 181, 0.05);
}

@media (max-width: 768px) {
  .translation-area {
    flex-direction: column;
  }
  
  .swap-btn {
    transform: rotate(180deg);
    margin: 1rem 0;
  }

  .swap-btn:hover {
    transform: rotate(180deg) scale(1.1);
  }
  
  .image-controls {
    flex-direction: column;
    align-items: stretch;
  }
  
  .generate-btn {
    margin-left: 0;
    width: 100%;
  }
  
  .sql-controls {
    flex-direction: column;
  }
  
  .sql-btn {
    width: 100%;
  }
}