/* Chat - 무채색 전문적 스타일 */

/* Messages Container */
.messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--color-bg-secondary);
}

/* Message */
.message {
    display: flex;
    gap: 10px;
    max-width: 85%;
    animation: fadeIn 0.2s ease;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.message.sent {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.message-avatar .material-icons {
    font-size: 20px;
    color: var(--color-text-secondary);
}

.message-body {
    display: flex;
    flex-direction: column;
}

.message-bubble {
    padding: 12px 16px;
    border-radius: var(--radius-lg);
    line-height: 1.5;
    font-size: 14px;
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-sm);
}
.message.received .message-bubble {
    border-bottom-left-radius: var(--radius-sm);
}
.message.sent .message-bubble {
    background: var(--color-primary);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
}

.message-time {
    font-size: 10px;
    color: var(--color-text-tertiary);
    margin-top: 4px;
    padding: 0 4px;
}
.message.sent .message-time {
    text-align: right;
}

/* Chat Header */
.chat-header {
    display: flex;
    align-items: center;
    padding: calc(12px + var(--safe-top)) 12px 12px;
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
}

.chat-header-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
}
.chat-header-avatar .material-icons {
    font-size: 22px;
    color: var(--color-text-secondary);
}

.chat-header-info {
    flex: 1;
}
.chat-header-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.chat-header-status {
    font-size: 12px;
    color: var(--color-text-tertiary);
}

/* Input Area */
.chat-input-area {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 12px calc(10px + var(--safe-bottom));
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border);
}

.input-action-btn,
.send-btn {
    width: 36px;
    height: 36px;
    border: none;
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--color-text-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}
.input-action-btn:hover,
.send-btn:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}
.input-action-btn .material-icons,
.send-btn .material-icons {
    font-size: 22px;
}

.voice-btn.recording {
    background: #FFEBEE;
    color: var(--color-error);
    animation: pulse 1s infinite;
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.chat-input-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    padding: 8px 14px;
    min-height: 36px;
}
.chat-input {
    flex: 1;
    border: none;
    background: none;
    font-size: 14px;
    resize: none;
    max-height: 80px;
    line-height: 1.4;
    font-family: inherit;
    color: var(--color-text-primary);
}
.chat-input::placeholder {
    color: var(--color-text-disabled);
}

/* Conversation List */
.conv-list {
    flex: 1;
    overflow-y: auto;
    background: var(--color-bg-primary);
}

.conv-section-title {
    padding: 16px 16px 8px;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--color-bg-secondary);
    position: sticky;
    top: 0;
    z-index: 1;
}

.conv-item {
    display: flex;
    align-items: center;
    padding: 14px 16px;
    background: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border-light);
    cursor: pointer;
    transition: background 0.2s;
}
.conv-item:hover {
    background: var(--color-bg-secondary);
}

.conv-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 14px;
    flex-shrink: 0;
}
.conv-avatar .material-icons {
    font-size: 24px;
    color: var(--color-text-secondary);
}

.conv-info {
    flex: 1;
    min-width: 0;
}
.conv-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 2px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.conv-badge {
    font-size: 9px;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
}

.conv-preview {
    font-size: 13px;
    color: var(--color-text-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conv-meta {
    text-align: right;
    margin-left: 12px;
}
.conv-time {
    font-size: 11px;
    color: var(--color-text-disabled);
    margin-bottom: 4px;
}
.conv-unread {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: 10px;
    font-weight: 600;
}

/* Attached File/Image */
.file-bubble {
    padding: 8px !important;
}
.attached-image {
    max-width: 200px;
    max-height: 200px;
    border-radius: var(--radius-md);
}
.attached-file {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}
.attached-file .material-icons {
    color: var(--color-text-secondary);
}

/* Typing Indicator */
.message-bubble.typing {
    display: flex;
    gap: 4px;
    padding: 14px 18px;
}
.message-bubble.typing span {
    width: 6px;
    height: 6px;
    background: var(--color-text-disabled);
    border-radius: var(--radius-full);
    animation: typing 1.4s infinite ease-in-out;
}
.message-bubble.typing span:nth-child(1) { animation-delay: 0s; }
.message-bubble.typing span:nth-child(2) { animation-delay: 0.2s; }
.message-bubble.typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-6px); }
}

/* OpenHash Save Notice */
.openhash-save-notice {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin: 16px;
    padding: 16px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-lg);
    border-left: 3px solid var(--color-success);
}
.openhash-save-notice .material-icons {
    font-size: 28px;
    color: var(--color-success);
}
.notice-title {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 8px;
    font-size: 14px;
}
.notice-detail {
    font-size: 12px;
    color: var(--color-text-secondary);
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.notice-detail .hash-display {
    font-family: 'Courier New', monospace;
    font-size: 11px;
    color: var(--color-text-tertiary);
    margin-top: 4px;
}

/* Chat Screen Layout Fix */
.chat-screen {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: var(--color-bg-secondary);
}

.chat-input-area {
    margin-top: auto;
}

/* 안드로이드 모바일 하단 바 대응 - 고정값 */
@media screen and (max-width: 768px) {
    .chat-input-area {
        padding-bottom: 48px !important;
    }
    .messages {
        padding-bottom: 120px !important;
    }
}