:root {
  --primary-color: #2196F3;
  --secondary-color: #FFC107;
  --danger-color: #f44336;
  --warning-color: #ff9800;
  --background-color: #F5F5F5;
  --text-color: #333333;
  --border-color: #DDDDDD;
}

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

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  line-height: 1.6;
  padding: 20px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header {
  text-align: center;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 2px solid var(--primary-color);
}

h1 {
  color: var(--primary-color);
  font-size: 2em;
}

h3 {
  margin-bottom: 10px;
  color: var(--text-color);
}

.controls, .summary-controls, .utilities {
  margin-bottom: 30px;
}

.control-group {
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

label {
  font-weight: 500;
}

select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-size: 14px;
}

button {
  padding: 10px 20px;
  margin: 5px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
  font-size: 14px;
  font-weight: 500;
}

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

.btn-secondary {
  background-color: var(--secondary-color);
  color: var(--text-color);
}

.btn-danger {
  background-color: var(--danger-color);
  color: white;
}

.btn-warning {
  background-color: var(--warning-color);
  color: white;
}

button:hover:not(:disabled) {
  opacity: 0.8;
  transform: translateY(-2px);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.status {
  padding: 8px 16px;
  background-color: #e0e0e0;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 500;
}

.status.recording {
  background-color: #ffebee;
  color: var(--danger-color);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
}

.result-section {
  margin-bottom: 20px;
}

.text-box {
  min-height: 150px;
  max-height: 300px;
  overflow-y: auto;
  padding: 15px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: white;
  line-height: 1.6;
  white-space: pre-wrap;
  word-wrap: break-word;
}

.text-box:empty::before {
  content: 'テキストがここに表示されます...';
  color: #999;
  font-style: italic;
}

.utilities {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

@media (max-width: 768px) {
  .container {
    padding: 15px;
  }

  .results {
    grid-template-columns: 1fr;
  }

  .control-group {
    flex-direction: column;
    align-items: flex-start;
  }

  button {
    width: 100%;
  }

  .utilities {
    flex-direction: column;
  }
}