/* 쪽지함 컨테이너 */
.messages-container {
    display: flex !important;
    height: 75% !important;
    width: 1050px !important;
    max-width: 1050px !important;
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: absolute !important;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%) !important;
    margin-left: -35px !important;
}

/* 쪽지함 탭일 때 content-area 스타일 */
.content-area:has(#messages-tab-content.active) {
    padding: 20px;
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.content-area:has(#messages-tab-content.active) #current-tab-title {
    display: none;
}

#messages-tab-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
    padding: 0;
    height: 100%;
    position: relative;
}

/* 좌측 사이드바 */
.messages-sidebar {
    width: 525px !important;
    min-width: 525px !important;
    max-width: 525px !important;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    background: white;
    height: 100%;
    max-height: 100%;
}

.messages-sidebar-header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    background: white;
}

.messages-sidebar-header h2 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    margin: 0;
}

/* 대화 목록 */
.messages-conversations-list {
    flex: 1;
    overflow-y: auto;
}

.conversation-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: white;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.2s;
    position: relative;
}

.conversation-item:hover {
    background: #f5f5f5;
}

.conversation-item.active {
    background: #e8f4ff;
    border-left: 3px solid #007aff;
}

body.dark-mode .conversation-item.active {
    background: rgba(0, 122, 255, 0.2);
}

.conversation-delete-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    padding: 6px;
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    color: #999;
    transition: all 0.2s;
    display: none;
    align-items: center;
    justify-content: center;
}

.conversation-item:hover .conversation-delete-btn {
    display: flex;
}

.conversation-delete-btn:hover {
    background: #fee;
    color: #ff3b30;
}

.conversation-delete-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.conversation-item.unread {
    background: #f0f7ff;
}

body.dark-mode .conversation-item.unread {
    background: rgba(0, 122, 255, 0.15);
}

.conversation-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
}

.conversation-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.conversation-avatar svg {
    width: 20px;
    height: 20px;
    color: var(--text-light);
}

.conversation-info {
    flex: 1;
    min-width: 0;
    padding-right: 30px;
}

.conversation-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 4px;
}

.conversation-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    transition: color 0.2s;
    cursor: pointer;
}

.conversation-name:hover {
    color: #007aff;
}

.conversation-time {
    font-size: 11px;
    color: var(--text-light);
    white-space: nowrap;
}

.conversation-preview {
    font-size: 12px;
    color: var(--text-light);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conversation-item.unread .conversation-name {
    font-weight: 700;
}

.conversation-item.unread .conversation-preview {
    font-weight: 600;
    color: var(--text);
}

/* 우측 대화 영역 */
.messages-chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: white;
    min-height: 0;
    overflow: hidden;
    height: 100%;
    max-height: 100%;
}

/* 대화 선택 전 빈 상태 */
.messages-chat-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

.messages-chat-empty svg {
    margin-bottom: 16px;
    opacity: 0.3;
}

.messages-chat-empty p {
    font-size: 16px;
    margin: 0;
}

/* 대화 내용 */
.messages-chat-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    overflow: hidden;
}

/* 대화 헤더 */
.messages-chat-header {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    background: white;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.messages-chat-user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.messages-chat-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: #f5f5f5;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.messages-chat-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.messages-chat-avatar svg {
    width: 18px;
    height: 18px;
    color: var(--text-light);
}

.messages-chat-username {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    transition: color 0.2s;
}

.messages-chat-username:hover {
    color: #007aff;
}


/* 메시지 목록 */
.messages-chat-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
    background: #fafafa;
    min-height: 0;
    scroll-behavior: smooth;
}

/* 스크롤바 스타일링 */
.messages-chat-messages::-webkit-scrollbar {
    width: 8px;
}

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

.messages-chat-messages::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 4px;
}

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

.message-bubble {
    display: flex;
    margin-bottom: 12px;
    animation: fadeIn 0.3s;
}

.message-bubble.sent {
    justify-content: flex-end;
}

.message-bubble.received {
    justify-content: flex-start;
}

.message-bubble-content {
    max-width: 60%;
    display: flex;
    flex-direction: column;
}

.message-bubble.sent .message-bubble-content {
    align-items: flex-end;
}

.message-bubble.received .message-bubble-content {
    align-items: flex-start;
}

.message-bubble-text {
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 13px;
    line-height: 1.5;
    word-break: break-word;
    white-space: pre-wrap;
}

.message-bubble.sent .message-bubble-text {
    background: #007aff;
    color: white;
    border-bottom-right-radius: 4px;
}

.message-bubble.received .message-bubble-text {
    background: white;
    color: var(--text);
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.message-bubble-time {
    font-size: 10px;
    color: var(--text-light);
    margin-top: 4px;
    padding: 0 4px;
}

/* 메시지 입력 영역 */
.messages-chat-input-area {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    background: white;
    flex-shrink: 0;
    position: relative;
    z-index: 10;
}

.messages-chat-input {
    flex: 1;
    min-height: 36px;
    max-height: 100px;
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: 18px;
    font-size: 13px;
    font-family: inherit;
    resize: none;
    transition: border-color 0.2s;
    background: white;
    color: var(--text);
}

.messages-chat-input:focus {
    outline: none;
    border-color: #007aff;
}

.messages-chat-send-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #007aff;
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.messages-chat-send-btn:hover {
    background: #0051d5;
    transform: scale(1.05);
}

.messages-chat-send-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.messages-chat-send-btn svg {
    width: 18px;
    height: 18px;
}

/* 로딩 스피너 */
.messages-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 60px 20px;
}

.messages-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid #f0f0f0;
    border-top-color: #007aff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* 프로필 쪽지 버튼 */
.profile-message-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: #007aff;
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    transition: all 0.2s;
}

.profile-message-btn:hover {
    background: #0051d5;
    transform: scale(1.05);
}

.profile-message-btn svg {
    width: 20px;
    height: 20px;
}

/* 쪽지 보내기 모달 */
#message-content {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.2s;
    background: var(--card-bg);
    color: var(--text);
}

#message-content:focus {
    outline: none;
    border-color: #007aff;
}

#message-receiver {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: var(--card-bg);
    color: var(--text);
}

.modal-btn.delete {
    background: #ff3b30;
    color: white;
}

.modal-btn.delete:hover {
    background: #d32f2f;
}

/* 읽지 않은 쪽지 배지 (탭 버튼) */
.tab-button {
    position: relative;
}

.tab-button .unread-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: #ff3b30;
    color: white;
    font-size: 11px;
    font-weight: 600;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* 애니메이션 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

/* 다크모드 스타일 */
body.dark-mode .messages-container {
    border: 2px solid #444;
    box-shadow: 0 2px 12px rgba(255, 255, 255, 0.1);
    background: var(--card-bg);
}

body.dark-mode .messages-sidebar {
    border-right: 2px solid #444;
    background: var(--bg);
}

body.dark-mode .messages-sidebar-header {
    border-bottom: 2px solid #444;
    background: var(--card-bg);
}

body.dark-mode .conversation-item {
    border-bottom: 1px solid #333;
    background: var(--card-bg);
}

body.dark-mode .conversation-item:hover {
    background: var(--bg);
}

body.dark-mode .conversation-avatar {
    background: var(--bg);
}

body.dark-mode .messages-chat-area {
    background: var(--card-bg);
}

body.dark-mode .messages-chat-header {
    border-bottom: 2px solid #444;
    background: var(--card-bg);
}

body.dark-mode .messages-chat-avatar {
    background: var(--bg);
}

body.dark-mode .messages-chat-messages {
    background: var(--bg);
}

body.dark-mode .message-bubble.received .message-bubble-text {
    background: var(--card-bg);
}

body.dark-mode .messages-chat-input-area {
    border-top: 2px solid #444;
    background: var(--card-bg);
}

body.dark-mode .messages-chat-input {
    border: 2px solid #444;
    background: var(--card-bg);
}

body.dark-mode .messages-chat-messages::-webkit-scrollbar-thumb {
    background: #555;
}

body.dark-mode .messages-chat-messages::-webkit-scrollbar-thumb:hover {
    background: #666;
}

/* 반응형 */
@media (max-width: 768px) {
    .messages-container {
        flex-direction: column;
        height: 100%;
    }
    
    .content-area:has(#messages-tab-content.active) {
        height: 100vh;
    }

    .messages-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #e5e5e5;
        max-height: 40vh;
        min-height: 0;
    }

    .messages-chat-area {
        flex: 1;
        min-height: 0;
        overflow: hidden;
    }

    .conversation-item {
        padding: 12px 16px;
    }

    .conversation-avatar {
        width: 40px;
        height: 40px;
    }

    .messages-chat-header {
        padding: 12px 16px;
    }

    .messages-chat-messages {
        padding: 16px;
        overflow-y: auto;
    }
    
    .messages-chat-input-area {
        padding: 12px 16px;
    }

    .message-bubble-content {
        max-width: 80%;
    }

    .messages-chat-input-area {
        padding: 12px 16px;
    }
}