/* Messages CSS - Message Display Styling */

/* Message Viewer */
.message-viewer {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Message Header */
.message-header {
    background-color: #fff;
    border-bottom: 1px solid #e0e0e0;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
    box-shadow: 0 1px 2px 0 rgba(60,64,67,0.08);
}

[data-theme="dark"] .message-header {
    background-color: #202124;
    border-bottom-color: #5f6368;
}

.message-header-info {
    flex: 1;
    min-width: 0;
}

.space-name {
    font-size: var(--font-size-xl);
    font-weight: 400;
    color: var(--on-surface);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.space-description {
    font-size: var(--font-size-sm);
    color: var(--on-surface-variant);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.message-header-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* Messages Container */
.messages-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    background-color: #fff;
    position: relative;
}

[data-theme="dark"] .messages-container {
    background-color: #1a1a1a;
}

/* Loading state for messages */
#messagesLoading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
}

/* Messages List */
.messages-list {
    padding: var(--spacing-lg);
    max-width: 1200px;
    margin: 0 auto;
}

/* Message Item */
.message-item {
    display: flex;
    gap: 8px;
    margin-bottom: 2px;
    padding: 2px 16px;
    animation: fadeInUp var(--transition-base);
    border-radius: 8px;
    transition: background-color var(--transition-fast);
}

.message-item:hover {
    background-color: rgba(60,64,67,0.04);
}

[data-theme="dark"] .message-item:hover {
    background-color: rgba(255,255,255,0.04);
}

.message-item.thread-start {
    margin-top: var(--spacing-md);
}

/* Message grouping - add spacing between different senders */
.message-item[data-sender-change="true"] {
    margin-top: 16px;
}

/* Message Avatar */
.message-avatar {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
    font-size: 12px;
    flex-shrink: 0;
    overflow: hidden;
    margin-top: 2px;
}

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

.message-avatar.bot {
    background-color: #5f6368;
    border-radius: var(--radius-sm);
}

/* Hide avatar for consecutive messages from same sender */
.message-item:not([data-sender-change="true"]) .message-avatar {
    visibility: hidden;
}

/* Message Content */
.message-content {
    flex: 1;
    min-width: 0;
    max-width: 80%;
}

/* Message bubble */
.message-bubble {
    background-color: #f1f3f4;
    border-radius: 18px;
    padding: 8px 12px;
    display: inline-block;
    max-width: 100%;
    position: relative;
}

[data-theme="dark"] .message-bubble {
    background-color: #303134;
}

/* Bot messages have different background */
.message-item .message-avatar.bot ~ .message-content .message-bubble {
    background-color: #e3f2fd;
}

[data-theme="dark"] .message-item .message-avatar.bot ~ .message-content .message-bubble {
    background-color: #1e3a5f;
}

/* Sender name - only show for first message in group */
.message-sender {
    font-weight: 500;
    color: var(--on-surface);
    font-size: 13px;
    margin-bottom: 2px;
    display: none;
}

.message-item[data-sender-change="true"] .message-sender {
    display: block;
}

.message-timestamp {
    font-size: 11px;
    color: var(--on-surface-variant);
    margin-left: var(--spacing-sm);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.message-item:hover .message-timestamp {
    opacity: 1;
}

.message-text {
    color: #202124;
    font-size: 14px;
    line-height: 20px;
    font-family: 'Google Sans', Roboto, Arial, sans-serif;
    word-wrap: break-word;
    white-space: pre-wrap;
}

[data-theme="dark"] .message-text {
    color: #e8eaed;
}

.message-text p {
    margin-bottom: var(--spacing-sm);
}

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

/* Message Formatting */
.message-text strong {
    font-weight: 600;
}

.message-text em {
    font-style: italic;
}

.message-text code {
    background-color: var(--surface-variant);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9em;
}

.message-text pre {
    background-color: var(--surface);
    border: 1px solid var(--divider);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    overflow-x: auto;
    margin: var(--spacing-sm) 0;
}

.message-text pre code {
    background: none;
    padding: 0;
}

.message-text a {
    color: var(--primary-color);
    text-decoration: none;
}

.message-text a:hover {
    text-decoration: underline;
}

/* Message Cards */
.message-card {
    background-color: var(--surface);
    border: 1px solid var(--divider);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-sm);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--divider);
}

.card-title {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--on-surface);
    margin-bottom: 4px;
}

.card-subtitle {
    font-size: var(--font-size-sm);
    color: var(--on-surface-variant);
}

.card-section {
    padding: var(--spacing-md);
}

.card-section + .card-section {
    border-top: 1px solid var(--divider);
}

/* Message Attachments */
.message-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.attachment-item {
    background-color: var(--surface);
    border: 1px solid var(--divider);
    border-radius: var(--radius-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.attachment-item:hover {
    background-color: var(--surface-variant);
    box-shadow: var(--shadow-1);
}

.attachment-icon {
    font-size: 20px;
    color: var(--primary-color);
}

.attachment-name {
    font-size: var(--font-size-sm);
    color: var(--on-surface);
    max-width: 200px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.attachment-size {
    font-size: var(--font-size-xs);
    color: var(--on-surface-variant);
}

/* Image Attachments */
.message-image {
    max-width: 400px;
    margin-top: var(--spacing-sm);
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
}

.message-image img {
    width: 100%;
    height: auto;
    display: block;
}

.image-fallback {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--surface-variant);
    color: var(--on-surface-variant);
    font-size: var(--font-size-sm);
}

.image-fallback .material-icons {
    font-size: 24px;
}

/* Thread Indicator */
.thread-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--surface-variant);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    color: var(--primary-color);
    cursor: pointer;
    transition: all var(--transition-fast);
    width: fit-content;
}

.thread-indicator:hover {
    background-color: var(--primary-light);
}

.thread-indicator .material-icons {
    font-size: 16px;
}

/* Thread Messages */
.thread-messages {
    margin-left: 52px;
    margin-top: var(--spacing-sm);
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--divider);
}

.thread-message {
    margin-bottom: var(--spacing-md);
}

/* User Mention */
.user-mention {
    background-color: var(--primary-light);
    color: var(--primary-color);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
}

/* Slash Command */
.slash-command {
    background-color: var(--surface-variant);
    color: var(--on-surface-variant);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'Roboto Mono', monospace;
    font-size: 0.9em;
}

/* Date Divider */
.date-divider {
    display: flex;
    align-items: center;
    margin: 24px 0 16px;
    position: relative;
}

.date-divider-text {
    background-color: #fff;
    color: #5f6368;
    font-size: 12px;
    font-weight: 500;
    padding: 4px 16px;
    border-radius: 16px;
    margin: 0 auto;
    box-shadow: 0 1px 2px 0 rgba(60,64,67,0.08);
}

[data-theme="dark"] .date-divider-text {
    background-color: #303134;
    color: #9aa0a6;
}

/* Message Actions */
.message-actions {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.message-item:hover .message-actions {
    opacity: 1;
}

.message-action {
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    background-color: transparent;
    color: var(--on-surface-variant);
    font-size: 16px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.message-action:hover {
    background-color: var(--surface-variant);
}

/* Load More Container */
.load-more-container {
    padding: var(--spacing-lg);
    text-align: center;
}

.load-more-button {
    padding: var(--spacing-sm) var(--spacing-xl);
    background-color: var(--surface);
    border: 1px solid var(--divider);
    border-radius: var(--radius-full);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.load-more-button:hover {
    background-color: var(--primary-light);
    box-shadow: var(--shadow-1);
}

.load-more-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Message Skeleton */
.message-skeleton {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.skeleton-message-content {
    flex: 1;
}

.skeleton-sender {
    height: 14px;
    width: 120px;
    background-color: var(--surface-variant);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.skeleton-text {
    height: 12px;
    background-color: var(--surface-variant);
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
}

.skeleton-text:last-child {
    width: 60%;
}

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

/* Compact View */
.compact-view .message-item {
    margin-bottom: var(--spacing-sm);
}

.compact-view .message-avatar {
    width: 28px;
    height: 28px;
    font-size: var(--font-size-xs);
}

.compact-view .message-header-row {
    margin-bottom: 2px;
}

.compact-view .message-text {
    font-size: var(--font-size-sm);
}

/* Responsive */
@media (max-width: 768px) {
    .messages-list {
        padding: var(--spacing-md);
    }
    
    .message-header {
        padding: var(--spacing-md);
    }
    
    .space-name {
        font-size: var(--font-size-lg);
    }
    
    .message-image {
        max-width: 100%;
    }
    
    .thread-messages {
        margin-left: 0;
        padding-left: var(--spacing-sm);
    }
}

/* Print Styles */
@media print {
    .message-header-actions,
    .message-actions,
    .load-more-container {
        display: none !important;
    }
    
    .message-item {
        break-inside: avoid;
    }
}