/* ========================================
   チャットページ専用スタイル
   ======================================== */

/* ========================================
   チャットコンテナ
   ======================================== */
.chat-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, var(--sakura-light) 0%, var(--sakura-pink) 100%);
  padding-bottom: 0; /* パディング削除（入力エリアとナビゲーションが固定のため） */
}

/* ========================================
   ソウルメイトヘッダー（固定）
   ======================================== */
.chat-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(135deg, #FFE4E1, #FFB7C5);
  padding: 30px 20px 20px;
  text-align: center;
  border-radius: 0 0 30px 30px;
  box-shadow: 0 4px 20px rgba(255, 107, 157, 0.2);
  animation: fadeInDown 0.6s ease-out;
  transition: all 0.4s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* スクロール時の縮小ヘッダー */
.chat-header.scrolled {
  padding: 10px 20px;
  flex-direction: row;
  justify-content: flex-start;
  text-align: left;
  gap: 12px;
  border-radius: 0;
}

.soulmate-avatar-wrapper {
  margin-bottom: 20px;
  transition: all 0.4s ease;
}

.chat-header.scrolled .soulmate-avatar-wrapper {
  margin-bottom: 0;
}

.soulmate-avatar {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  border: 5px solid white;
  box-shadow: 0 8px 30px rgba(255, 107, 157, 0.3);
  object-fit: cover;
  animation: float 3s ease-in-out infinite;
  transition: all 0.4s ease;
}

.chat-header.scrolled .soulmate-avatar {
  width: 60px;
  height: 60px;
  border: 3px solid white;
  box-shadow: 0 4px 15px rgba(255, 107, 157, 0.3);
  animation: none; /* フローティングを停止 */
}

.soulmate-name {
  font-size: 1.75rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--sakura-accent), var(--sakura-deep));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  transition: all 0.4s ease;
}

.chat-header.scrolled .soulmate-name {
  font-size: 1.125rem;
  margin-bottom: 0;
}

.soulmate-concept {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: 10px;
  transition: all 0.3s ease;
  opacity: 1;
  max-height: 30px;
  overflow: hidden;
}

.chat-header.scrolled .soulmate-concept {
  opacity: 0;
  max-height: 0;
  margin-bottom: 0;
}

.soulmate-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 20px;
  transition: all 0.4s ease;
}

.chat-header.scrolled .soulmate-status {
  padding: 4px 8px;
  font-size: 0.75rem;
  margin-left: auto; /* 右寄せ */
}

.status-indicator {
  font-size: 0.75rem;
  animation: pulse 2s ease-in-out infinite;
}

/* ========================================
   チャットメッセージエリア
   ======================================== */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  padding-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 170px; /* 入力エリア（80px） + ナビゲーション（90px） */
  scroll-behavior: smooth;
}

/* スクロールバーのスタイル */
.chat-messages::-webkit-scrollbar {
  width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: var(--sakura-pink);
  border-radius: 3px;
}

/* ========================================
   メッセージスタイル
   ======================================== */

/* ソウルメイトのメッセージ（左） */
.message-soulmate {
  align-self: flex-start;
  max-width: 75%;
  animation: fadeInLeft 0.4s ease-out;
}

.message-soulmate .message-content {
  background: rgba(255, 255, 255, 0.95);
  color: var(--text-primary);
  padding: 12px 18px;
  border-radius: 20px 20px 20px 5px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  line-height: 1.6;
}

.message-soulmate .message-content p {
  margin: 6px 0;
}

.message-soulmate .message-content p:first-child {
  margin-top: 0;
}

.message-soulmate .message-content p:last-child {
  margin-bottom: 0;
}

/* 自分のメッセージ（右） */
.message-user {
  align-self: flex-end;
  max-width: 75%;
  animation: fadeInRight 0.4s ease-out;
}

.message-user .message-content {
  background: linear-gradient(135deg, var(--sakura-accent), var(--sakura-deep));
  color: white;
  padding: 12px 18px;
  border-radius: 20px 20px 5px 20px;
  box-shadow: 0 2px 10px rgba(255, 107, 157, 0.3);
  line-height: 1.6;
}

.message-user .message-content p {
  margin: 0;
}

/* メッセージタイムスタンプ */
.message-time {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 4px;
  text-align: right;
  opacity: 0.7;
}

.message-soulmate .message-time {
  text-align: left;
}

/* タイピングインジケーター */
.typing-indicator {
  align-self: flex-start;
  max-width: 75%;
  animation: fadeInLeft 0.4s ease-out;
}

.typing-indicator .message-content {
  background: rgba(255, 255, 255, 0.95);
  padding: 12px 18px;
  border-radius: 20px 20px 20px 5px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  display: flex;
  gap: 6px;
}

.typing-dot {
  width: 8px;
  height: 8px;
  background: var(--sakura-accent);
  border-radius: 50%;
  animation: typingDot 1.4s infinite;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.4s;
}

/* ========================================
   入力エリア（固定）
   ======================================== */
.chat-input-area {
  position: fixed;
  bottom: 90px; /* 下部ナビゲーション分（70px + マージン20px） */
  left: 0;
  right: 0;
  padding: 15px 20px;
  background: white;
  border-top: 2px solid var(--sakura-pink);
  display: flex;
  gap: 10px;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
  z-index: 50;
}

.chat-input {
  flex: 1;
  padding: 12px 18px;
  border: 2px solid var(--sakura-pink);
  border-radius: 25px;
  font-size: 1rem;
  outline: none;
  transition: all 0.3s ease;
  font-family: 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
}

.chat-input:focus {
  border-color: var(--sakura-accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.1);
}

.chat-send-btn {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--sakura-accent), var(--sakura-deep));
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(255, 107, 157, 0.3);
  transition: all 0.3s ease;
}

.chat-send-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 157, 0.4);
}

.chat-send-btn:active {
  transform: translateY(0);
}

.chat-send-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ========================================
   アニメーション
   ======================================== */
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes typingDot {
  0%, 60%, 100% {
    transform: translateY(0);
    opacity: 0.7;
  }
  30% {
    transform: translateY(-10px);
    opacity: 1;
  }
}

/* ========================================
   レスポンシブ対応
   ======================================== */
@media (max-width: 768px) {
  .chat-header {
    padding: 20px 15px 15px;
  }

  .soulmate-avatar {
    width: 150px;
    height: 150px;
  }

  .soulmate-name {
    font-size: 1.5rem;
  }

  .soulmate-concept {
    font-size: 0.9rem;
  }

  .chat-messages {
    padding: 15px;
    padding-bottom: 15px;
    margin-bottom: 150px; /* モバイル用調整 */
  }

  .message-soulmate,
  .message-user {
    max-width: 85%;
  }

  .message-content {
    font-size: 0.95rem;
  }

  .chat-input-area {
    padding: 12px 15px;
  }

  .chat-input {
    font-size: 0.95rem;
    padding: 10px 16px;
  }

  .chat-send-btn {
    width: 45px;
    height: 45px;
    font-size: 1.125rem;
  }
}

/* 極小画面対応 */
@media (max-width: 400px) {
  .soulmate-avatar {
    width: 120px;
    height: 120px;
  }

  .soulmate-name {
    font-size: 1.25rem;
  }

  .chat-messages {
    margin-bottom: 140px; /* 極小画面用調整 */
  }
}

/* 縮小時の情報グループ */
.soulmate-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  transition: all 0.4s ease;
}

.chat-header.scrolled .soulmate-info {
  flex-direction: row;
  align-items: center;
  gap: 12px;
  flex: 1;
}