/* メインスタイル */
:root {
  --primary-color: #7e57c2;
  --primary-light: #b085f5;
  --primary-dark: #4d2c91;
  --secondary-color: #ff7043;
  --background-color: #f8f9fa;
  --card-color: #ffffff;
  --text-primary: #212121;
  --text-secondary: #757575;
  --border-color: #e0e0e0;
  --success-color: #4caf50;
  --warning-color: #ff9800;
  --error-color: #f44336;
  --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --header-height: 60px;
  --footer-height: 0px;
  --max-width: 1440px;
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
  :root[data-theme="auto"] {
    --background-color: #121212;
    --card-color: #1e1e1e;
    --text-primary: #f0f0f0;
    --text-secondary: #bdbdbd;
    --border-color: #424242;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    --primary-light: #9966FF;
  }
}

:root[data-theme="dark"] {
  --background-color: #121212;
  --card-color: #1e1e1e;
  --text-primary: #f0f0f0;
  --text-secondary: #bdbdbd;
  --border-color: #424242;
  --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
  --primary-light: #9966FF;
}

body {
  background-color: var(--background-color);
  color: var(--text-primary);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* アプリのコンテナ */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* ヘッダー */
.app-header {
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1.5rem;
  background-color: var(--card-color);
  box-shadow: var(--box-shadow);
  z-index: 10;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.settings-button {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color var(--transition-fast);
}

.settings-button:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.material-symbols-rounded {
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* メインコンテンツ */
.app-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* 3Dキャラクター表示エリア */
.character-container {
  flex: 2;
  position: relative;
  background-color: #f0f2f5;
  overflow: hidden;
}

#vrm-container {
  width: 100%;
  height: 100%;
}

.model-controls {
  position: absolute;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  z-index: 5;
}

.control-button {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background-color: var(--card-color);
  border-radius: var(--border-radius-md);
  box-shadow: var(--box-shadow);
  color: var(--primary-color);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.control-button:hover {
  background-color: var(--primary-light);
  color: white;
}

.control-button .material-symbols-rounded {
  font-size: 1.2rem;
}

/* チャットインターフェース */
.chat-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--card-color);
  border-top: 1px solid var(--border-color);
  min-height: 200px;
  max-height: 40vh;
}

.chat-messages {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.message {
  max-width: 80%;
  padding: 0.8rem 1rem;
  border-radius: var(--border-radius-md);
  animation: fadeIn 0.3s ease;
}

.message-user {
  align-self: flex-end;
  background-color: var(--primary-light);
  color: white;
  border-radius: var(--border-radius-md) var(--border-radius-md) 0 var(--border-radius-md);
}

.message-ai {
  align-self: flex-start;
  background-color: var(--primary-light);
  color: var(--text-primary);
  border-radius: var(--border-radius-md) var(--border-radius-md) var(--border-radius-md) 0;
}

.chat-input-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem;
  border-top: 1px solid var(--border-color);
}

#user-input {
  flex: 1;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  resize: none;
  max-height: 120px;
  transition: all var(--transition-fast);
}

#user-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

#send-button, #voice-button {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  transition: all var(--transition-fast);
}

#send-button:hover, #voice-button:hover {
  background-color: var(--primary-dark);
}

/* 設定パネル */
.settings-panel {
  position: fixed;
  top: 0;
  right: -350px;
  width: 350px;
  height: 100vh;
  background-color: var(--card-color);
  box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
  z-index: 20;
  transition: right var(--transition-normal);
  overflow-y: auto;
}

.settings-panel.open {
  right: 0;
}

.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.settings-header h2 {
  font-size: 1.2rem;
  font-weight: 600;
}

.close-button {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background-color var(--transition-fast);
}

.close-button:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.settings-content {
  padding: 1.5rem;
}

.setting-group {
  margin-bottom: 2rem;
}

.setting-group h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.setting-item {
  margin-bottom: 1rem;
}

.setting-item label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.setting-item select, .setting-item input:not([type="range"]), .setting-item textarea {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background-color: var(--card-color);
  color: var(--text-primary);
}

.setting-item select:focus, .setting-item input:focus, .setting-item textarea:focus {
  outline: none;
  border-color: var(--primary-color);
}

.setting-item input[type="range"] {
  width: 80%;
  vertical-align: middle;
}

.range-value {
  display: inline-block;
  width: 40px;
  text-align: center;
}

.setting-item small {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.3;
}

.setting-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 2rem;
}

.primary-button, .secondary-button {
  padding: 0.8rem 1.5rem;
  border-radius: var(--border-radius-md);
  font-weight: 500;
  transition: all var(--transition-fast);
}

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

.primary-button:hover {
  background-color: var(--primary-dark);
}

.secondary-button {
  background-color: transparent;
  border: 1px solid var(--border-color);
}

.secondary-button:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

/* アニメーション */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ローディングインジケータ */
.loading-indicator {
  display: inline-block;
  margin-left: 0.5rem;
}

.loading-indicator span {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--text-secondary);
  border-radius: 50%;
  animation: loadingDots 1.4s infinite ease-in-out both;
}

.loading-indicator span:nth-child(1) {
  animation-delay: -0.32s;
}

.loading-indicator span:nth-child(2) {
  animation-delay: -0.16s;
}

@keyframes loadingDots {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

/* モーション制御パネル */
.motion-controls {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: var(--card-color);
  border-radius: var(--border-radius-lg);
  padding: 1rem;
  box-shadow: var(--box-shadow);
  min-width: 280px;
  z-index: 5;
  transform: translateY(100%);
  opacity: 0;
  animation: slideUpIn 0.5s ease forwards;
  animation-delay: 1s;
}

@keyframes slideUpIn {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.motion-group {
  margin-bottom: 1rem;
}

.motion-group:last-child {
  margin-bottom: 0;
}

.motion-group h4 {
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-align: center;
}

.motion-buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.5rem;
}

.motion-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 0.5rem;
  background: var(--background-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-md);
  color: var(--text-primary);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 70px;
}

.motion-btn:hover {
  background: var(--primary-light);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(126, 87, 194, 0.2);
}

.motion-btn:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(126, 87, 194, 0.3);
}

.motion-btn .material-symbols-rounded {
  font-size: 20px;
  margin-bottom: 0.25rem;
}

.motion-btn.emotion-btn:hover {
  background: var(--secondary-color);
  box-shadow: 0 4px 12px rgba(255, 112, 67, 0.2);
}

.motion-btn.active {
  background: var(--primary-color);
  color: white;
  box-shadow: 0 4px 12px rgba(126, 87, 194, 0.3);
}

.motion-btn.emotion-btn.active {
  background: var(--secondary-color);
  box-shadow: 0 4px 12px rgba(255, 112, 67, 0.3);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
  .motion-controls {
    left: 10px;
    right: 10px;
    min-width: auto;
    max-width: calc(100% - 20px);
  }
  
  .motion-buttons {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .motion-btn {
    font-size: 0.7rem;
    padding: 0.5rem 0.25rem;
    min-height: 60px;
  }
  
  .motion-btn .material-symbols-rounded {
    font-size: 18px;
  }
}

/* レスポンシブデザイン */
@media (min-width: 768px) {
  .app-content {
    flex-direction: row;
  }
  
  .chat-container {
    max-width: 450px;
    max-height: none;
    border-top: none;
    border-left: 1px solid var(--border-color);
  }
}

@media (max-width: 767px) {
  .settings-panel {
    width: 100%;
    right: -100%;
  }
}

/* アクセシビリティ強化 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}