/* チャットウィジェット - スタイル */

/* フローティングボタン */
#chat-widget-button {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff9800 0%, #ff6b00 100%);
    color: white;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(255, 152, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9998;
    outline: none;
}

#chat-widget-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(255, 152, 0, 0.5);
}

#chat-widget-button:active {
    transform: scale(0.95);
}

#chat-widget-button.active {
    transform: rotate(180deg);
}

/* チャットウィンドウ */
#chat-widget-window {
    position: fixed;
    bottom: 100px;
    right: 24px;
    width: 380px;
    max-width: calc(100vw - 48px);
    height: 600px;
    max-height: calc(100vh - 140px);
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 9999;
    transform-origin: bottom right;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#chat-widget-window.hidden {
    opacity: 0;
    transform: scale(0.8) translateY(20px);
    pointer-events: none;
}

#chat-widget-window.visible {
    opacity: 1;
    transform: scale(1) translateY(0);
}

/* ヘッダー */
.chat-header {
    background: linear-gradient(135deg, #ff9800 0%, #ff6b00 100%);
    color: white;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.chat-header-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    font-weight: 600;
}

.chat-header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #ff9800;
}

.chat-header-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.chat-header-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* メッセージエリア */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: #f5f5f5;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-messages::-webkit-scrollbar {
    width: 6px;
}

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

.chat-messages::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: #999;
}

/* メッセージバブル */
.chat-message {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.5;
    word-wrap: break-word;
    animation: messageSlide 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-message.user {
    align-self: flex-end;
    background: linear-gradient(135deg, #ff9800 0%, #ff6b00 100%);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-message.bot {
    align-self: flex-start;
    background: white;
    color: #333;
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.chat-message-time {
    font-size: 11px;
    opacity: 0.7;
    margin-top: 4px;
}

/* タイピングインジケーター */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: white;
    border-radius: 12px;
    width: fit-content;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ccc;
    animation: typing 1.4s infinite;
}

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

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

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.5;
    }
    30% {
        transform: translateY(-8px);
        opacity: 1;
    }
}

/* 入力エリア */
.chat-input-container {
    padding: 16px;
    background: white;
    border-top: 1px solid #e5e5e5;
    display: flex;
    gap: 12px;
}

.chat-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e5e5e5;
    border-radius: 24px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
    font-family: inherit;
}

.chat-input:focus {
    border-color: #ff9800;
}

.chat-send-button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ff9800 0%, #ff6b00 100%);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.2s;
    flex-shrink: 0;
}

.chat-send-button:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(255, 152, 0, 0.4);
}

.chat-send-button:active:not(:disabled) {
    transform: scale(0.95);
}

.chat-send-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ウェルカムメッセージ */
.welcome-message {
    text-align: center;
    padding: 40px 20px;
    color: #666;
}

.welcome-message-icon {
    font-size: 48px;
    color: #ff9800;
    margin-bottom: 16px;
}

.welcome-message-title {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.welcome-message-text {
    font-size: 14px;
    line-height: 1.6;
}

/* レスポンシブ */
@media (max-width: 480px) {
    #chat-widget-window {
        width: calc(100vw - 32px);
        height: calc(100vh - 100px);
        right: 16px;
        bottom: 84px;
    }

    #chat-widget-button {
        right: 16px;
        bottom: 16px;
    }
}

/* アクセシビリティ */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}