/* ============================================================
   Chat 主畫面專屬樣式（index.html）
   ============================================================ */

.chat-top { align-items: center; }
.chat-top__id { display: flex; align-items: center; gap: 12px; min-width: 0; }
.chat-top__avatar {
  width: 44px; height: 44px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  background: var(--surface-highest); color: var(--primary);
  font-size: 20px;
  border: 1px solid color-mix(in srgb, var(--outline-variant) 20%, transparent);
  cursor: pointer; overflow: hidden; padding: 0;
  transition: transform var(--dur) var(--ease);
}
.chat-top__avatar:active { transform: scale(0.92); }
.chat-top__status {
  margin: 2px 0 0; font-size: 10px; line-height: 1;
  color: var(--on-surface-variant);
  display: flex; align-items: center; gap: 5px;
}
.chat-top__status .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--success); display: inline-block;
}
.chat-top__actions { display: flex; gap: 8px; flex-shrink: 0; }

/* Model / Intimacy 快捷 chip（只留這兩個，規格 §1 決策4）*/
.chip {
  height: var(--btn-sm); padding: 0 14px;
  border-radius: var(--radius-full);
  background: var(--surface); color: var(--on-surface-variant);
  border: 1px solid color-mix(in srgb, var(--outline-variant) 30%, transparent);
  font-size: var(--fs-label); font-weight: 600;
  transition: transform var(--dur) var(--ease);
}
.chip:active { transform: scale(0.95); }
.chip--icon {
  width: var(--btn-sm); padding: 0;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--primary);
}
.chip--icon svg { width: 18px; height: 18px; }

/* Mic active state */
.icon-btn--active {
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  animation: mic-pulse-chat 1.2s ease-in-out infinite;
}
@keyframes mic-pulse-chat {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--primary) 25%, transparent); }
  50%      { box-shadow: 0 0 0 8px color-mix(in srgb, var(--primary) 0%, transparent); }
}

/* 對話畫布 */
.chat-canvas {
  display: flex; flex-direction: column; gap: 16px;
  padding: var(--margin-page);
}