/* TODO: Task 1.2.2 - 챗봇 UI 스타일링 */

/* TODO: Task 1.2.2 - .chat-container 레이아웃 */
.chat-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md);
}

/* TODO: Task 1.2.2 - .messages 스크롤 영역 */
.messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    -webkit-overflow-scrolling: touch;
}

/* 스크롤바 커스터마이징 (가벼운 스타일) */
.messages::-webkit-scrollbar {
    width: 4px;
}

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

.messages::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 2px;
}

/* TODO: Task 1.2.2 - .message 공통 스타일 */
.message {
    display: flex;
    width: 100%;
    margin-bottom: var(--spacing-xs);
}

.message-bubble {
    max-width: 75%;
    padding: var(--spacing-sm) var(--spacing-md);
    word-wrap: break-word;
    line-height: 1.5;
}

.message-content {
    font-size: 0.9375rem;
    white-space: pre-wrap;
}

/* TODO: Task 1.2.2 - .message.bot 말풍선 (왼쪽 정렬) */
.message.bot {
    justify-content: flex-start;
}

.message.bot .message-bubble {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-text);
    border-radius: var(--border-radius-md) var(--border-radius-md) var(--border-radius-md) var(--border-radius-sm);
    border: 1px solid rgba(224, 224, 224, 0.5);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* TODO: Task 1.2.2 - .message.user 말풍선 (오른쪽 정렬) */
.message.user {
    justify-content: flex-end;
}

.message.user .message-bubble {
    background-color: rgba(102, 126, 234, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-white);
    border-radius: var(--border-radius-md) var(--border-radius-md) var(--border-radius-sm) var(--border-radius-md);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

/* TODO: Task 1.2.2 - 입력 영역 (.app-footer 내부) */
.input-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    max-width: 100%;
}

/* TODO: Task 1.2.2 - input 스타일 */
.message-input {
    flex: 1;
    min-width: 0;
    height: 44px;
    padding: 0 var(--spacing-md);
    border: 1px solid rgba(224, 224, 224, 0.5);
    border-radius: var(--border-radius-lg);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: 0.9375rem;
    outline: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.message-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 2px 12px rgba(102, 126, 234, 0.3);
}

.message-input::placeholder {
    color: var(--color-text-light);
}

/* TODO: Task 1.2.2 - 전송 버튼 */
.send-button {
    height: 44px;
    min-width: 60px;
    padding: 0 var(--spacing-md);
    border: none;
    border-radius: var(--border-radius-lg);
    background-color: rgba(102, 126, 234, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--color-white);
    font-family: var(--font-family);
    font-size: 0.9375rem;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
    transition: all 0.2s ease;
}

.send-button:hover {
    background-color: rgba(102, 126, 234, 1);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    transform: translateY(-1px);
}

.send-button:active {
    opacity: 0.8;
    transform: translateY(0);
}

/* TODO: Task 1.2.2 - 사진 버튼 (아이콘 느낌) */
.photo-button {
    height: 44px;
    width: 44px;
    padding: 0;
    border: none;
    border-radius: var(--border-radius-lg);
    background-color: transparent;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    outline: none;
}

.photo-button:active {
    background-color: var(--color-border);
    opacity: 0.7;
}

/* TODO: Task 1.2.2 - 모바일 우선 반응형 */
/* 태블릿 (768px 이상) */
@media (min-width: 768px) {
    .message-bubble {
        max-width: 65%;
    }
    
    .input-container {
        max-width: 600px;
        margin: 0 auto;
    }
}

/* 데스크톱 (1024px 이상) */
@media (min-width: 1024px) {
    .message-bubble {
        max-width: 60%;
    }
    
    .input-container {
        max-width: 800px;
    }
}