/* ══════════════════════════════════════════════════════════════
   neko AI 聊天窗口 — 右下角浮动聊天气泡 + 抽屉式聊天面板
   配色与 input.css 共享 neko-* 色系，支持暗色模式
   ══════════════════════════════════════════════════════════════ */

/* ── 浮动气泡容器（按钮 + 标签 + 打招呼）── */
.neko-chat-container {
  position: fixed;
  bottom: 80px;
  right: 20px;
  z-index: 98;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0;
}

/* ── 常驻文字标签 ── */
.neko-chat-label {
  background: var(--surface);
  color: #ff5c96;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  box-shadow: var(--glass-shadow-sm);
  border: 1px solid var(--border);
  margin-bottom: 0.5rem;
  white-space: nowrap;
  animation: nekoLabelFloat 3s ease-in-out infinite;
  pointer-events: none;
}
@keyframes nekoLabelFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-3px); }
}
.dark .neko-chat-label {
  background: var(--surface-alt);
  color: #ff9ec2;
  border-color: var(--border);
}

/* ── 打招呼气泡 ── */
.neko-chat-greeting {
  background: var(--surface);
  color: #4a3028;
  font-size: 0.8rem;
  padding: 0.5rem 0.875rem;
  border-radius: 1rem 1rem 0.25rem 1rem;
  box-shadow: var(--glass-shadow-sm);
  border: 1px solid var(--border);
  margin-bottom: 0.5rem;
  white-space: nowrap;
  animation: nekoGreetingIn 0.4s ease, nekoGreetingOut 0.3s ease 4.5s forwards;
  pointer-events: none;
  position: relative;
}
.neko-chat-greeting::after {
  content: "";
  position: absolute;
  bottom: -6px;
  right: 16px;
  width: 10px;
  height: 10px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transform: rotate(45deg);
}
@keyframes nekoGreetingIn {
  from { opacity: 0; transform: translateX(12px) scale(0.9); }
  to   { opacity: 1; transform: translateX(0) scale(1); }
}
@keyframes nekoGreetingOut {
  to { opacity: 0; transform: translateY(-8px); }
}
.dark .neko-chat-greeting {
  background: var(--surface-alt);
  color: #d8c8c0;
  border-color: var(--border);
}
.dark .neko-chat-greeting::after {
  background: var(--surface-alt);
  border-color: var(--border);
}

/* 玻璃质感由 static/css/styles.css 的 .glass* 组件统一控制，
   此处不再预声明 will-change，避免强制提升合成层占用 GPU 内存。 */

/* ── 拖动把手光标 ── */
.neko-chat-bubble,
.neko-chat-header {
  cursor: grab;
}
.neko-chat-container.is-dragging .neko-chat-bubble,
.neko-chat-container.is-dragging .neko-chat-header {
  cursor: grabbing;
}
.neko-chat-container.is-dragging {
  transition: none !important;
  user-select: none;
}

/* ── 拖动提示小字 ── */
.neko-chat-drag-hint {
  padding: 0.25rem 0.875rem;
  font-size: 0.6875rem;
  line-height: 1.4;
  color: var(--text-muted);
  text-align: center;
  background: rgba(255, 158, 194, 0.08);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.dark .neko-chat-drag-hint {
  background: rgba(255, 158, 194, 0.05);
}

/* ── 浮动气泡按钮（加大 + 强光晕）── */
.neko-chat-bubble {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff5c96, #ff8db5);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(255, 92, 150, 0.4), 0 0 0 4px rgba(255,92,150,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  animation: nekoChatPulse 2.5s ease-in-out infinite;
}
.neko-chat-bubble:hover {
  transform: scale(1.15);
  box-shadow: 0 6px 28px rgba(255, 92, 150, 0.55), 0 0 0 8px rgba(255,92,150,0.18);
}
.neko-chat-bubble:active {
  transform: scale(0.92);
}
@keyframes nekoChatPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(255, 92, 150, 0.4), 0 0 0 4px rgba(255,92,150,0.12); }
  50%      { box-shadow: 0 4px 30px rgba(255, 92, 150, 0.6), 0 0 0 10px rgba(255,92,150,0.06); }
}

/* ── 聊天窗口（绝对定位在容器上方，跟随拖动）── */
.neko-chat-window {
  position: absolute;
  bottom: 88px;
  right: 0;
  width: 420px;
  max-height: 620px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  box-shadow: var(--glass-shadow-xl);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform-origin: bottom right;
  animation: nekoChatSlideIn 0.3s ease;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.neko-chat-window.closing {
  animation: nekoChatSlideOut 0.25s ease forwards;
}
@keyframes nekoChatSlideIn {
  from { transform: scale(0.85); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}
@keyframes nekoChatSlideOut {
  from { transform: scale(1);    opacity: 1; }
  to   { transform: scale(0.85); opacity: 0; }
}

/* ── 头部 ── */
.neko-chat-header {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.75rem 1rem;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}
.neko-chat-header-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #ff9ec2;
  flex-shrink: 0;
}
.neko-chat-header-info {
  flex: 1;
  min-width: 0;
}
.neko-chat-header-name {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--heading);
  font-family: 'Lolita', serif;
  line-height: 1.2;
}
.neko-chat-header-status {
  font-size: 0.6875rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.neko-chat-header-status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4ade80;
  animation: nekoOnlinePulse 2s ease-in-out infinite;
}
@keyframes nekoOnlinePulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}
.neko-chat-close {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,0.06);
  color: #9b7e72;
  cursor: pointer;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
  flex-shrink: 0;
}
.neko-chat-close:hover {
  background: rgba(0,0,0,0.12);
  color: #4a3028;
}
.neko-chat-expand {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,0.06);
  color: #9b7e72;
  cursor: pointer;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
  flex-shrink: 0;
  text-decoration: none;
}
.neko-chat-expand:hover {
  background: rgba(0,0,0,0.12);
  color: #4a3028;
}

/* ── 消息区域 ── */
.neko-chat-body {
  flex: 1;
  overflow-y: auto;
  padding: 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  min-height: 240px;
  max-height: 420px;
  scroll-behavior: smooth;
}
.neko-chat-body::-webkit-scrollbar {
  width: 4px;
}
.neko-chat-body::-webkit-scrollbar-track {
  background: transparent;
}
.neko-chat-body::-webkit-scrollbar-thumb {
  background: #ff9ec2;
  border-radius: 4px;
}

/* ── 欢迎消息 ── */
.neko-chat-welcome {
  text-align: center;
  padding: 1.5rem 1rem;
}
.neko-chat-welcome-emoji {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}
.neko-chat-welcome-text {
  font-size: 0.8125rem;
  color: #9b7e72;
  line-height: 1.6;
}
.neko-chat-welcome-text strong {
  color: #ff5c96;
}

/* ── 消息气泡 ── */
.neko-chat-message {
  display: flex;
  gap: 0.5rem;
  max-width: 88%;
  animation: nekoMsgFadeIn 0.25s ease;
}
@keyframes nekoMsgFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.neko-chat-message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}
.neko-chat-message.neko {
  align-self: flex-start;
}
.neko-chat-msg-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  margin-top: 2px;
}
.neko-chat-message.user .neko-chat-msg-avatar {
  display: none;
}
.neko-chat-msg-bubble {
  padding: 0.5rem 0.875rem;
  border-radius: 1rem;
  font-size: 0.8125rem;
  line-height: 1.6;
  word-break: break-word;
  white-space: pre-wrap;
}
.neko-chat-message.user .neko-chat-msg-bubble {
  background: linear-gradient(135deg, #ff5c96, #ff8db5);
  color: #fff;
  border-bottom-right-radius: 0.25rem;
}
.neko-chat-message.neko .neko-chat-msg-bubble {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: #4a3028;
  border: 1px solid var(--glass-border);
  border-bottom-left-radius: 0.25rem;
}
.dark .neko-chat-message.neko .neko-chat-msg-bubble {
  background: var(--glass-bg);
  color: #d8c8c0;
  border-color: var(--glass-border);
}

/* ── 打字指示器 ── */
.neko-chat-typing {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 0.875rem;
  font-size: 0.75rem;
  color: #9b7e72;
  align-self: flex-start;
}
.neko-chat-typing-dots {
  display: flex;
  gap: 3px;
}
.neko-chat-typing-dots span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ff9ec2;
  animation: nekoTypingBounce 1.2s ease-in-out infinite;
}
.neko-chat-typing-dots span:nth-child(2) { animation-delay: 0.15s; }
.neko-chat-typing-dots span:nth-child(3) { animation-delay: 0.3s; }
@keyframes nekoTypingBounce {
  0%, 60%, 100% { transform: translateY(0); }
  30%            { transform: translateY(-6px); }
}

/* ── 输入区域 ── */
.neko-chat-input-area {
  display: flex;
  gap: 0.5rem;
  padding: 0.625rem 0.75rem;
  border-top: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  flex-shrink: 0;
}
.neko-chat-input {
  flex: 1;
  min-height: 38px;
  max-height: 100px;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--glass-border);
  border-radius: 1.25rem;
  font-size: 0.8125rem;
  font-family: inherit;
  color: var(--text);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  outline: none;
  resize: none;
  transition: border-color 0.2s;
  line-height: 1.4;
}
.neko-chat-input:focus {
  border-color: #ff9ec2;
  box-shadow: 0 0 0 3px rgba(255, 92, 150, 0.1);
}
.neko-chat-input::placeholder {
  color: var(--text-muted);
}
.dark .neko-chat-input {
  color: var(--text);
  background: var(--glass-bg);
  border-color: var(--glass-border);
}
.dark .neko-chat-input-area {
  background: var(--glass-bg);
  border-color: var(--glass-border);
}
.dark .neko-chat-input::placeholder {
  color: var(--text-muted);
}
.neko-chat-send {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #ff5c96, #ff8db5);
  color: #fff;
  cursor: pointer;
  font-size: 1rem;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s, box-shadow 0.2s;
}
.neko-chat-send:hover {
  transform: scale(1.08);
  box-shadow: 0 3px 12px rgba(255, 92, 150, 0.35);
}
.neko-chat-send:active {
  transform: scale(0.93);
}
.neko-chat-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ── 登录引导面板 ── */
.neko-chat-login-prompt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 2rem 1.5rem;
  text-align: center;
}
.neko-chat-login-prompt-emoji {
  font-size: 2.5rem;
}
.neko-chat-login-prompt-text {
  font-size: 0.875rem;
  color: #9b7e72;
  line-height: 1.6;
}
.neko-chat-login-prompt-buttons {
  display: flex;
  gap: 0.625rem;
  margin-top: 0.25rem;
}
.neko-chat-login-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1.25rem;
  border-radius: 2rem;
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}
.neko-chat-login-btn.primary {
  background: #ff5c96;
  color: #fff;
}
.neko-chat-login-btn.primary:hover {
  background: #e64d82;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 92, 150, 0.35);
}
.neko-chat-login-btn.outline {
  background: transparent;
  border: 2px solid #ff5c96;
  color: #ff5c96;
}
.neko-chat-login-btn.outline:hover {
  background: #ff5c96;
  color: #fff;
}

/* ── 错误提示 ── */
.neko-chat-error {
  text-align: center;
  padding: 0.5rem;
  font-size: 0.75rem;
  color: #e64d82;
  align-self: center;
}

/* ── 全屏聊天页消息气泡（不依赖 Tailwind CDN 动态扫描）── */
.chat-msg-user-bubble {
  max-width: 75%;
  padding: 0.625rem 1rem;
  border-radius: 1rem 1rem 0.25rem 1rem;
  background: linear-gradient(135deg, #ff5c96, #ff8db5);
  color: #fff;
  font-size: 0.875rem;
  line-height: 1.6;
  white-space: pre-wrap;
  box-shadow: 0 1px 4px rgba(255,92,150,0.2);
}
.chat-msg-neko-bubble {
  max-width: 80%;
  padding: 0.625rem 1rem;
  border-radius: 1rem 1rem 1rem 0.25rem;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: #4a3028;
  font-size: 0.875rem;
  line-height: 1.6;
  white-space: pre-wrap;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}
.chat-msg-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid #ffc2d8;
  flex-shrink: 0;
  margin-top: 0.125rem;
}
.dark .chat-msg-user-bubble {
  background: linear-gradient(135deg, #ff7aac, #ff9ec2);
}
.dark .chat-msg-neko-bubble {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  color: var(--text);
}
.dark .chat-msg-avatar {
  border-color: #3a1a28;
}

/* ══════════════════════════════════════════════════════════════
   暗色模式
   ══════════════════════════════════════════════════════════════ */
.dark .neko-chat-bubble {
  background: linear-gradient(135deg, #ff7aac, #ff9ec2);
  box-shadow: 0 4px 20px rgba(255, 122, 172, 0.35), 0 0 0 4px rgba(255,122,172,0.1);
}
.dark .neko-chat-window {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  box-shadow: var(--glass-shadow-xl);
}
.dark .neko-chat-header {
  background: var(--glass-bg);
  border-bottom-color: var(--glass-border);
}
.dark .neko-chat-header-name {
  color: var(--heading);
}
.dark .neko-chat-header-status {
  color: var(--text-muted);
}
.dark .neko-chat-close {
  background: rgba(255,255,255,0.06);
  color: #a09088;
}
.dark .neko-chat-close:hover {
  background: rgba(255,255,255,0.12);
  color: #d8c8c0;
}
.dark .neko-chat-body::-webkit-scrollbar-thumb {
  background: #6a3a50;
}
.dark .neko-chat-message.neko .neko-chat-msg-bubble {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  color: var(--text);
}
.dark .neko-chat-typing {
  color: var(--text-muted);
}
.dark .neko-chat-typing-dots span {
  background: var(--color-neko-400);
}
.dark .neko-chat-input-area {
  background: var(--glass-bg);
  border-top-color: var(--glass-border);
}
.dark .neko-chat-input {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  color: var(--text);
}
.dark .neko-chat-input:focus {
  border-color: var(--color-neko-400);
  box-shadow: 0 0 0 3px rgba(255, 122, 172, 0.15);
}
.dark .neko-chat-input::placeholder {
  color: var(--text-muted);
}
.dark .neko-chat-login-prompt-text {
  color: var(--text-muted);
}
.dark .neko-chat-welcome-text {
  color: var(--text-muted);
}
.dark .neko-chat-error {
  color: var(--color-neko-400);
}

/* ══════════════════════════════════════════════════════════════
   响应式：移动端
   ══════════════════════════════════════════════════════════════ */
@media (max-width: 480px) {
  .neko-chat-container {
    right: 8px;
    bottom: 72px;
  }
  .neko-chat-window {
    width: calc(100vw - 16px);
    max-width: 400px;
    bottom: 80px;
    max-height: 60vh;
    border-radius: 0.875rem;
  }
  .neko-chat-bubble {
    width: 48px;
    height: 48px;
    font-size: 1.35rem;
  }
  .neko-chat-label {
    font-size: 0.6875rem;
    margin-bottom: 0.375rem;
  }
  .neko-chat-greeting {
    font-size: 0.75rem;
  }
  .neko-chat-body {
    max-height: 40vh;
  }
}