/* ============================================================
   BabyChat 样式 — Siri 风格
   风格：深色科技感、毛玻璃、脉冲光效
   响应式：适配移动端和桌面端
   ============================================================ */

:root {
  --color-primary: #6C63FF;
  --color-primary-light: #8B83FF;
  --color-secondary: #00D9A6;
  --color-accent: #4FC3F7;
  --color-danger: #FF6B6B;
  --color-text: #1f2329;
  --color-text-light: #1f2329;
  --color-text-muted: #646a73;
  --radius: 20px;
  --radius-sm: 12px;
}

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

body {
  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  -webkit-font-smoothing: antialiased;
}

/* ============================================================
   容器 — Flex 全屏布局
   ============================================================ */
.container {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  max-width: 460px;
  width: 100%;
  padding: 24px 16px 48px;
  padding-top: 3.5rem; /* 为固定导航栏腾出空间 */
}

/* ============================================================
   标题区
   ============================================================ */
.header {
  text-align: center;
  flex-shrink: 0;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.5px;
  line-height: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: fit-content;
  margin: 0 auto;
  padding-top: 3.5rem;
}

.logo::after {
  content: '';
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  border-radius: 2px;
}

.logo a {
  text-decoration: none;
}

.logo-brand {
  font-weight: 700;
  font-size: 1em;
  background: linear-gradient(135deg, var(--color-primary-light), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: opacity 0.2s ease;
}
.logo-brand:hover {
  opacity: 0.8;
}

/* ============================================================
   主内容区（flex:1 撑满，垂直居中）
   ============================================================ */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

/* ============================================================
   状态文字（取代 badge dot）
   ============================================================ */
.status-text {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text-light);
  text-align: center;
  letter-spacing: 2px;
  transition: color 0.4s ease;
  flex-shrink: 0;
  padding: 6px 0 8px;
}

.container-listening .status-text {
  color: var(--color-accent);
  animation: textBreathe 2s ease-in-out infinite;
}

.container-loading .status-text {
  color: var(--color-primary-light);
  animation: textBreathe 1.2s ease-in-out infinite;
}

.container-playing .status-text {
  color: var(--color-secondary);
  animation: textBreathe 1.8s ease-in-out infinite;
}

@keyframes textBreathe {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

/* ============================================================
   识别文字显示区（无背景）
   ============================================================ */
.recognition-area {
  text-align: center;
  min-height: 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: 100%;
}

.recognition-scope {
  min-height: 1.6em;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.final-text {
  font-size: 26px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  word-break: break-all;
}

/* 未开始时显示使用提示 */
.container-listening .recognition-scope {
  min-height: 52px;
}
.container-idle .recognition-scope {
  min-height: 52px;
}
.idle-placeholder {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.container-idle .idle-placeholder {
  display: flex;
}
.container-idle .final-text:empty {
  display: none;
}

.idle-placeholder .mic-icon {
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.hint-list {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.hint-row {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  text-align: left;
}

/* 临时识别结果样式 */
.final-text.is-interim {
  color: var(--color-primary);
  font-weight: 600;
}
.final-text.is-interim:not(:empty)::after {
  content: '|';
  animation: cursorBlink 0.8s step-end infinite;
  color: var(--color-primary);
  margin-left: 2px;
  font-weight: 400;
}

@keyframes cursorBlink {
  50% { opacity: 0; }
}

/* 加载中时在识别文字旁显示加载点 */
.container-loading .final-text::after {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-left: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: breathe 1s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ============================================================
   推荐动物显示区（毛玻璃）
   ============================================================ */
.animal-card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  padding: 8px 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 8px;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.animal-card.is-visible {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.animal-name {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-primary-light);
}

/* ============================================================
   音频播放指示器（毛玻璃）
   ============================================================ */
.player-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 8px;
  padding: 6px 14px 4px;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  width: 100%;
  max-width: 380px;
}
.player-indicator.is-visible {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.play-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--color-secondary);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  transition: background 0.2s ease, transform 0.15s ease;
  flex-shrink: 0;
}
.play-btn:hover {
  background: rgba(0, 217, 166, 0.1);
}
.play-btn:active {
  transform: scale(0.92);
}

#waveformCanvas {
  display: block;
  flex: 1;
  height: 48px;
  cursor: pointer;
  border-radius: 4px;
  min-width: 0;
}

.player-indicator.is-replayable {
  cursor: pointer;
  transition: background 0.2s ease;
}
.player-indicator.is-replayable:hover {
  background: rgba(0, 217, 166, 0.08);
}

/* ============================================================
   底部按钮区 — Siri 风格（圆底 + 脉冲光环）
   ============================================================ */
.controls {
  text-align: center;
  flex-shrink: 0;
  padding: 0 0 28px;
  margin-top: 28px;
}

.btn-toggle {
  position: relative;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  font-size: 28px;
  cursor: pointer;
  box-shadow: 0 4px 24px rgba(108, 99, 255, 0.4);
  transition: transform 0.2s ease, box-shadow 0.3s ease;
  font-family: inherit;
  -webkit-tap-highlight-color: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-toggle .icon-toggle-play,
.btn-toggle .icon-toggle-stop {
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.35));
}

.btn-toggle:active {
  transform: scale(0.92);
}

/* ============================================================
   激活态按钮 — 各状态完全不同动态效果
   ============================================================ */
/* 通用激活阴影（IDLE 以外的基础态） */
.btn-toggle.is-active {
  box-shadow: 0 4px 32px rgba(108, 99, 255, 0.5);
}

/* ---- 聆听中：声波逐层扩散（向外运动） ---- */
.container-listening .btn-toggle.is-active {
  box-shadow: 0 0 24px rgba(79, 195, 247, 0.4), 0 4px 32px rgba(79, 195, 247, 0.5);
  animation: btnPulse 1.6s ease-in-out infinite;
}
.container-listening .btn-toggle.is-active::before,
.container-listening .btn-toggle.is-active::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 4px solid rgba(79, 195, 247, 0.5);
  box-shadow: 0 0 18px rgba(79, 195, 247, 0.2), inset 0 0 18px rgba(79, 195, 247, 0.08);
  animation: waveExpand 1.8s ease-out infinite;
  pointer-events: none;
}
.container-listening .btn-toggle.is-active::after {
  animation-delay: 0.5s;
}

@keyframes waveExpand {
  0% { transform: scale(0.88); opacity: 1; border-width: 4px; }
  100% { transform: scale(2.2); opacity: 0; border-width: 1px; }
}

@keyframes btnPulse {
  0%, 100% { box-shadow: 0 0 24px rgba(79, 195, 247, 0.4), 0 4px 32px rgba(79, 195, 247, 0.5); }
  50% { box-shadow: 0 0 40px rgba(79, 195, 247, 0.6), 0 4px 32px rgba(79, 195, 247, 0.5); }
}

/* ---- 加载中：旋转加载环（圆周运动） ---- */
.container-loading .btn-toggle.is-active {
  box-shadow: 0 4px 32px rgba(139, 131, 255, 0.5);
}
.container-loading .btn-toggle.is-active::before {
  content: '';
  position: absolute;
  inset: -11px;
  border-radius: 50%;
  border: 3px solid rgba(139, 131, 255, 0.12);
  border-top-color: rgba(139, 131, 255, 0.7);
  border-right-color: rgba(139, 131, 255, 0.35);
  animation: spinLoader 0.8s linear infinite;
  pointer-events: none;
}
.container-loading .btn-toggle.is-active::after {
  display: none;
}

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

/* ---- 旧状态兼容 ---- */
.container-processing .btn-toggle.is-active {
  box-shadow: 0 4px 32px rgba(139, 131, 255, 0.5);
}
.container-processing .btn-toggle.is-active::before {
  content: '';
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 2.5px solid transparent;
  border-top-color: rgba(139, 131, 255, 0.5);
  border-right-color: rgba(139, 131, 255, 0.15);
  animation: spinLoader 0.7s linear infinite;
  pointer-events: none;
}
.container-processing .btn-toggle.is-active::after {
  display: none;
}

/* ---- 播放中：节拍律动（上下/缩放运动）+ 柔和光晕 ---- */
.container-playing .btn-toggle.is-active {
  box-shadow: 0 4px 32px rgba(0, 217, 166, 0.5);
  animation: playBeat 1.4s ease-in-out infinite;
}
.container-playing .btn-toggle.is-active::before,
.container-playing .btn-toggle.is-active::after {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 2px solid rgba(0, 217, 166, 0.12);
  animation: breather 2.4s ease-in-out infinite;
  pointer-events: none;
}
.container-playing .btn-toggle.is-active::after {
  animation-delay: 0.8s;
}

@keyframes playBeat {
  0%, 100% { transform: scale(1); }
  15% { transform: scale(1.14); box-shadow: 0 0 44px rgba(0, 217, 166, 0.6); }
  30% { transform: scale(1); }
  55% { transform: scale(1.07); box-shadow: 0 4px 32px rgba(0, 217, 166, 0.5); }
  70% { transform: scale(1); }
}

@keyframes breather {
  0%, 100% { opacity: 0.12; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.12); }
}

/* ---- 回放中（手工触发）：与播放中相同节拍，但带特殊光晕区分 ---- */
.container-playing .btn-toggle.is-active .icon-toggle-play,
.container-playing .btn-toggle.is-active .icon-toggle-stop {
  /* 播放/停止图标保持可见，不需要额外处理 */
}

/* ============================================================
   错误消息
   ============================================================ */
.error-msg {
  text-align: center;
  color: var(--color-danger);
  font-size: 14px;
  padding: 12px 14px;
  background: rgba(255, 107, 107, 0.12);
  border-radius: var(--radius-sm);
  animation: fadeInUp 0.3s ease;
  flex-shrink: 0;
}

/* ============================================================
   共通动画
   ============================================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   响应式：小屏幕（仅字号与横向留白；纵向位置全局统一，不随宽度变化）
   ============================================================ */
@media (max-width: 480px) {
  .container {
    padding-left: 12px;
    padding-right: 12px;
  }
}

/* ============================================================
   矮屏保护：屏幕高度较矮时，固定标题与提示文字的间距，
   避免被 flex 居中吸收空间而越挤越近
   ============================================================ */
@media (max-height: 700px) {
  .main-content {
    justify-content: flex-start;
  }
  .recognition-area {
    margin-top: 32px;
  }
}