/* 꿈해몽 AI 채팅 위젯 스타일 */
:root {
    --primary-color: #7367F0;
    --primary-light: #9D95F5;
    --primary-dark: #5A4FD1;
    --secondary-color: #FF9F43;
    --success-color: #28C76F;
    --danger-color: #EA5455;
    --warning-color: #FF9F43;
    --info-color: #00CFE8;
    --light-color: #F8F8F8;
    --dark-color: #4B4B4B;
    --text-color: #333333;
    --text-muted: #6E6B7B;
    --border-color: #E0E0E0;
    --bg-light: #FFFFFF;
    --chat-bg: #F8F8F8;
    --user-message-bg: #EBE9FB;
    --assistant-message-bg: #e1f5fe;
    --system-message-bg: #FFF4E6;
    --dream-intro-bg: #EBE9FB;
    --border-radius: 0.5rem;
    --box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --transition-speed: 0.3s;
  }
  
  /* 다크 모드 변수 */
  [data-theme="dark"] {
    --primary-color: #7367F0;
    --primary-light: #9D95F5;
    --primary-dark: #5A4FD1;
    --secondary-color: #FF9F43;
    --text-color: #EEEEEE;
    --text-muted: #9E9E9E;
    --border-color: #444444;
    --bg-light: #2D2D2D;
    --chat-bg: #1E1E1E;
    --user-message-bg: #3A3446;
    --assistant-message-bg: #313D44;
    --system-message-bg: #40383A;
    --dream-intro-bg: #37336B;
  }
  
  /* 기본 스타일 리셋 */
  .dreamchat-widget * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  }
  
  /* 위젯 컨테이너 */
  .dreamchat-widget {
    width: 100%;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    display: flex;
    flex-direction: column;
    background-color: var(--bg-light);
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease;
    color: var(--text-color);
    position: relative;
  }
  
  /* 헤더 */
  .dreamchat-header {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border-bottom: 1px solid var(--primary-dark);
    position: relative;
  }
  
  .dreamchat-logo {
    width: 2rem;
    height: 2rem;
    margin-right: 0.75rem;
  }
  
  .dreamchat-title {
    font-size: 1.125rem;
    font-weight: 600;
    flex-grow: 1;
  }
  
  /* 테마 토글 */
  .theme-toggle {
    display: flex;
    align-items: center;
  }
  
  .theme-toggle button {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem;
    border-radius: 50%;
    transition: background-color 0.2s;
  }
  
  .theme-toggle button:hover {
    background-color: rgba(255, 255, 255, 0.1);
  }
  
  .theme-toggle svg {
    width: 1.25rem;
    height: 1.25rem;
  }
  
  /* 채팅 컨테이너 */
  .chat-container {
    flex: 1;
    min-height: 300px;
    background-color: var(--chat-bg);
    overflow-y: auto;
    padding: 1rem;
    transition: background-color var(--transition-speed) ease;
    position: relative;
    scroll-behavior: smooth;
  }
  
  /* 스크롤바 스타일링 */
  .chat-container::-webkit-scrollbar {
    width: 0.5rem;
  }
  
  .chat-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
  }
  
  .chat-container::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 0.25rem;
  }
  
  /* 채팅 소개 */
  .chat-intro {
    background-color: var(--dream-intro-bg);
    border-radius: var(--border-radius);
    padding: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-color);
    box-shadow: var(--box-shadow);
    animation: fadeIn 0.5s ease;
    position: relative;
  }
  
  .chat-intro h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--primary-dark);
  }
  
  .chat-intro p {
    margin-bottom: 1rem;
    line-height: 1.5;
  }
  
  .dream-tips {
    list-style-type: none;
    padding-left: 0.5rem;
    margin-bottom: 1rem;
  }
  
  .dream-tips li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
    line-height: 1.4;
  }
  
  .dream-tips li::before {
    content: "✦";
    position: absolute;
    left: 0;
    color: var(--primary-color);
  }
  
  .dream-note {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 0.75rem;
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: 0.25rem;
    font-size: 0.85rem;
    color: var(--text-muted);
  }
  
  .dream-note svg {
    margin-top: 0.1rem;
    flex-shrink: 0;
  }
  
  /* 메시지 스타일 */
  .chat-messages {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .chat-message {
    max-width: 85%;
    border-radius: var(--border-radius);
    padding: 0.75rem;
    position: relative;
    animation: messageAppear 0.3s ease;
    word-break: break-word;
  }
  
  @keyframes messageAppear {
    from {
      opacity: 0;
      transform: translateY(10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
  
  .chat-message.user {
    align-self: flex-end;
    background-color: var(--user-message-bg);
    box-shadow: var(--box-shadow);
  }
  
  .chat-message.assistant {
    align-self: flex-start;
    background-color: var(--assistant-message-bg);
    box-shadow: var(--box-shadow);
    width: 90%;
    max-width: 90%;
  }
  
  .chat-message.system {
    background-color: var(--system-message-bg);
    align-self: center;
    text-align: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    max-width: 90%;
    animation: fadeIn 0.3s ease;
  }
  
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
  
  .message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
  }
  
  .nickname {
    font-weight: 600;
    color: var(--primary-dark);
  }
  
  .time {
    color: var(--text-muted);
    font-size: 0.7rem;
  }
  
  .message-content {
    line-height: 1.5;
    font-size: 0.95rem;
  }
  
  .message-content.system {
    color: var(--secondary-color);
    font-weight: 500;
  }
  
  /* 진행률 표시 */
  .progress-bar {
    height: 0.375rem;
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 0.188rem;
    margin-top: 0.5rem;
    overflow: hidden;
  }
  
  .progress {
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
  }
  
  /* 로딩 표시 */
  .loading-indicator {
    margin: 0.5rem 0;
  }
  
  .loading-dots {
    display: flex;
    gap: 0.25rem;
    justify-content: center;
    margin-top: 0.5rem;
  }
  
  .loading-dot {
    width: 0.5rem;
    height: 0.5rem;
    background-color: var(--primary-color);
    border-radius: 50%;
    animation: loadingDot 1.5s infinite ease-in-out;
  }
  
  .loading-dot:nth-child(2) {
    animation-delay: 0.2s;
  }
  
  .loading-dot:nth-child(3) {
    animation-delay: 0.4s;
  }
  
  @keyframes loadingDot {
    0%, 100% {
      transform: scale(0.5);
      opacity: 0.5;
    }
    50% {
      transform: scale(1);
      opacity: 1;
    }
  }
  
  /* 입력 영역 */
  .chat-input-container {
    padding: 0.75rem;
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
    transition: background-color var(--transition-speed) ease;
  }
  
  .chat-input-wrapper {
    display: flex;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
    background-color: var(--bg-light);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }
  
  .chat-input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(115, 103, 240, 0.2);
  }
  
  textarea {
    flex: 1;
    border: none;
    padding: 0.75rem;
    resize: none;
    background-color: transparent;
    color: var(--text-color);
    font-size: 0.95rem;
    outline: none;
    font-family: inherit;
    line-height: 1.5;
  }
  
  textarea::placeholder {
    color: var(--text-muted);
  }
  
  .send-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    width: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.3s ease;
  }
  
  .send-button:hover {
    background-color: var(--primary-dark);
  }
  
  .send-button svg {
    width: 1.25rem;
    height: 1.25rem;
  }
  
  /* 예시 버튼 영역 */
  .chat-examples {
    margin-top: 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
  }
  
  .examples-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-right: 0.25rem;
  }
  
  .greeting-example {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
  }

  .greeting-example:hover {
    background-color: var(--warning-color);
    border-color: var(--warning-color);
  }

  .example-button {
    background-color: var(--bg-light);
    border: 1px solid var(--primary-light);
    color: var(--primary-color);
    border-radius: 1rem;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 150px;
  }
  
  .example-button:hover {
    background-color: var(--primary-light);
    color: white;
  }
  
  /* 채팅 푸터 */
  .chat-footer {
    padding: 0.5rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
  }
  
  .powered-by {
    opacity: 0.7;
  }
  
  /* 반응형 디자인 */
  @media (max-width: 768px) {
    .dreamchat-header {
      padding: 0.75rem;
    }
    
    .dreamchat-title {
      font-size: 1rem;
    }
    
    .chat-message {
      max-width: 90%;
    }
    
    .chat-message.assistant {
      width: 95%;
      max-width: 95%;
    }
    
    .chat-examples {
      overflow-x: auto;
      padding-bottom: 0.5rem;
      flex-wrap: nowrap;
      justify-content: flex-start;
      width: 100%;
    }
    
    .example-button {
      flex-shrink: 0;
    }
  }
  
  @media (max-width: 480px) {
    .dreamchat-header {
      padding: 0.5rem;
    }
    
    .chat-message {
      max-width: 95%;
    }
    
    .dream-tips li {
      font-size: 0.9rem;
    }
  }
  
  /* 접근성 향상 */
  @media (prefers-reduced-motion: reduce) {
    .chat-message, .chat-intro, .progress {
      animation: none;
      transition: none;
    }
  }
  
  /* 고대비 모드 지원 */
  @media (prefers-contrast: more) {
    :root {
      --primary-color: #0000FF;
      --text-color: #000000;
      --bg-light: #FFFFFF;
      --user-message-bg: #CCCCFF;
      --assistant-message-bg: #D8E8F0;
    }
    
    [data-theme="dark"] {
      --primary-color: #AAAAFF;
      --text-color: #FFFFFF;
      --bg-light: #000000;
    }
  }