/**
 * Factchecker Frontend Styles
 * Based on compare_models.html design with enhancements
 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #e3e3e3;
    --text-secondary: #999;
    --accent: #8ab4f8;
    --accent-hover: #aecbff;
    --border: #303030;
    --message-user: #303134;
    --message-bot: #1a1a1a;
    --error: #f28b82;
    --success: #81c995;
    --warning: #fdd663;
    --shadow: rgba(0, 0, 0, 0.5);
    --code-bg: #282828;
    --code-border: #404040;
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e8eaed;
    --text-primary: #202124;
    --text-secondary: #5f6368;
    --accent: #1a73e8;
    --accent-hover: #1967d2;
    --border: #dadce0;
    --message-user: #e8f0fe;
    --message-bot: #f8f9fa;
    --error: #d93025;
    --success: #188038;
    --warning: #ea8600;
    --shadow: rgba(0, 0, 0, 0.1);
    --code-bg: #f5f5f5;
    --code-border: #d0d0d0;
}

body {
    font-family: 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    max-height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: background 0.3s, color 0.3s;
}

/* Header */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px var(--shadow);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 500;
}

.logo-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.language-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 8px 16px;
    cursor: pointer;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s;
    font-weight: 600;
    font-size: 13px;
    min-width: 50px;
}

.language-toggle:hover {
    background: var(--accent);
    color: white;
}

/* Language toggle flag icon */
.language-toggle .icon {
    width: 20px;
    height: 20px;
    border-radius: 2px;
    object-fit: cover;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 8px 12px;
    cursor: pointer;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.theme-toggle:hover {
    background: var(--accent);
    color: white;
}

.settings-icon-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.3s;
}

.settings-icon-btn:hover {
    background: var(--accent);
    transform: scale(1.1);
}

/* Auth Pages Container */
.auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.auth-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    max-width: 400px;
    width: 100%;
    box-shadow: 0 4px 16px var(--shadow);
}

.auth-card h1 {
    font-size: 28px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.auth-card .subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 14px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.button {
    width: 100%;
    padding: 12px 24px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    font-family: inherit;
}

.button:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.button:disabled {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
}

.button.loading::after {
    content: '...';
    animation: loading 1s infinite;
}

@keyframes loading {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

.auth-link {
    text-align: center;
    margin-top: 20px;
    color: var(--text-secondary);
    font-size: 14px;
}

.auth-link a {
    color: var(--accent);
    text-decoration: none;
}

.auth-link a:hover {
    text-decoration: underline;
}

/* Main Container */
.main-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.content-wrapper {
    flex: 1;
    display: flex;
    gap: 0;
    overflow: hidden;
}

/* Conversations Sidebar */
.conversations-sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform 0.3s ease, width 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* Hidden state */
.conversations-sidebar.hidden {
    transform: translateX(-100%);
    width: 0;
    min-width: 0;
    border-right: none;
}

/* Explicitly hide sidebar toggle button when sidebar is hidden */
.conversations-sidebar.hidden .sidebar-toggle-btn {
    visibility: hidden;
    pointer-events: none;
}

.conversations-header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.new-conversation-btn {
    flex: 1;
    padding: 12px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s;
}

.new-conversation-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.new-conversation-btn span:first-child {
    font-size: 18px;
    font-weight: bold;
}

.conversations-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.conversations-list::-webkit-scrollbar {
    width: 6px;
}

.conversations-list::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.conversations-list::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.conversations-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.conversations-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 40px;
}

.conversation-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.2s;
    gap: 8px;
}

.conversation-item:hover {
    background: var(--bg-tertiary);
}

.conversation-item.active {
    background: var(--message-user);
    border-left: 3px solid var(--accent);
}

.conversation-item-content {
    flex: 1;
    min-width: 0; /* Allow text truncation */
}

.conversation-item-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Editable conversation name input */
.conversation-item-title.editing {
    background: var(--bg-secondary);
    border: 2px solid var(--accent);
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    outline: none;
    width: 100%;
    box-sizing: border-box;
}

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

/* Action buttons container */
.conversation-item-actions {
    display: none; /* Hidden by default */
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.conversation-item:hover .conversation-item-actions {
    display: flex; /* Show on hover */
}

.conversation-item-edit-btn,
.conversation-item-delete-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 16px;
    padding: 6px;
    border-radius: 4px;
    transition: background 0.2s, transform 0.1s;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
}

.conversation-item-edit-btn:hover,
.conversation-item-delete-btn:hover {
    opacity: 1;
    background: var(--bg-secondary);
    transform: scale(1.1);
}

.conversation-item-edit-btn:active,
.conversation-item-delete-btn:active {
    transform: scale(0.95);
}

.conversation-item-delete-btn:hover {
    background: rgba(255, 59, 48, 0.1);
}

.conversation-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conversation-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-secondary);
}

.message-count {
    display: flex;
    align-items: center;
    gap: 4px;
}

.conversation-date {
    font-size: 11px;
}

.conversations-empty {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-secondary);
}

/* Comparison Mode Container */
.comparison-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

.comparison-panels {
    flex: 1;
    display: flex;
    gap: 0;
    overflow: hidden;
}

.comparison-panels .chat-panel:first-child {
    border-right: 1px solid var(--border);
}

/* Chat Panel */
.chat-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    position: relative;
}

.chat-header {
    background: var(--bg-secondary);
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Sidebar Toggle Button */
.sidebar-toggle-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    flex-shrink: 0;
    padding: 0;
}

.sidebar-toggle-btn:hover {
    background: var(--accent);
}

.sidebar-toggle-btn .icon {
    width: 20px;
    height: 20px;
}

/* Chat toggle button (in chat header) - only visible when sidebar is hidden */
.chat-toggle-btn {
    display: none;
    margin-right: 12px;
}

.conversations-sidebar.hidden ~ .chat-panel .chat-toggle-btn,
.conversations-sidebar.hidden ~ .comparison-container .chat-toggle-btn {
    display: flex;
}

/* Defensive CSS: Ensure chat toggle is hidden when sidebar is NOT hidden */
.conversations-sidebar:not(.hidden) ~ .chat-panel .chat-toggle-btn,
.conversations-sidebar:not(.hidden) ~ .comparison-container .chat-toggle-btn {
    display: none !important;
}

/* Defensive CSS: Ensure sidebar toggle inside sidebar is hidden when sidebar is hidden */
.conversations-sidebar.hidden > .conversations-header .sidebar-toggle-btn {
    display: none;
}

/* Comparison header styling */
.comparison-header {
    background: var(--bg-secondary);
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.conversation-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
    margin-right: 12px;
}

.model-selector {
    background: var(--bg-secondary);
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.model-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.model-dropdown {
    display: flex;
    align-items: center;
    gap: 12px;
}

.model-label {
    color: var(--text-secondary);
    font-size: 14px;
}

.conversation-id {
    font-size: 11px;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
}

select {
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    min-width: 180px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border-radius: 20px;
    font-size: 12px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-dot.error {
    background: var(--error);
    animation: none;
}

.status-dot.warning {
    background: var(--warning);
}

/* Messages Container */
.messages-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    scroll-behavior: smooth;
}

.messages-container::-webkit-scrollbar {
    width: 8px;
}

.messages-container::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.messages-container::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

.messages-container::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.message {
    display: flex;
    gap: 12px;
    animation: fadeIn 0.3s;
}

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

.user-avatar {
    background: var(--accent);
    color: white;
}

.bot-avatar {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.message-content {
    flex: 1;
    padding: 12px 16px;
    border-radius: 12px;
    line-height: 1.5;
    font-size: 14px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.user-message .message-content {
    background: var(--message-user);
}

.bot-message .message-content {
    background: var(--message-bot);
    border: 1px solid var(--border);
}

.message-content h1, .message-content h2, .message-content h3,
.message-content h4, .message-content h5, .message-content h6 {
    margin: 16px 0 8px 0;
    color: var(--text-primary);
    font-weight: 600;
}

.message-content h1 { font-size: 1.5em; }
.message-content h2 { font-size: 1.3em; }
.message-content h3 { font-size: 1.1em; }

.message-content p {
    margin: 8px 0;
}

.message-content ul, .message-content ol {
    margin: 8px 0;
    padding-left: 24px;
}

.message-content li {
    margin: 4px 0;
}

.message-content blockquote {
    margin: 12px 0;
    padding: 8px 16px;
    border-left: 4px solid var(--accent);
    background: var(--bg-tertiary);
    border-radius: 0 8px 8px 0;
    font-style: italic;
}

.message-content code {
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: 4px;
    padding: 2px 6px;
    font-family: 'Courier New', Consolas, monospace;
    font-size: 0.9em;
}

.message-content pre {
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    border-radius: 8px;
    padding: 12px;
    overflow-x: auto;
    margin: 12px 0;
    white-space: pre-wrap;
}

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

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

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

.message-content strong {
    font-weight: 600;
    color: var(--text-primary);
}

.message-content em {
    font-style: italic;
    color: var(--text-primary);
}

.message-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 12px 0;
}

.message-content th, .message-content td {
    border: 1px solid var(--border);
    padding: 8px 12px;
    text-align: left;
}

.message-content th {
    background: var(--bg-tertiary);
    font-weight: 600;
}

.message-time {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 8px;
}

/* Input Section */
.input-section {
    border-top: 1px solid var(--border);
    padding: 16px 20px;
    background: var(--bg-secondary);
}

.input-container {
    display: flex;
    gap: 12px;
    align-items: center;
}

.message-input {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 24px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    resize: none;
    outline: none;
    transition: border-color 0.3s;
    min-height: 44px;
}

.message-input:focus {
    border-color: var(--accent);
}

.send-button {
    padding: 12px 24px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 24px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 44px;
}

.send-button:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.send-button:disabled {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
}

/* Loading Indicator */
.loading-indicator {
    display: none;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: 12px;
    margin: 0 24px;
}

.loading-indicator.active {
    display: flex;
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

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

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

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-10px);
    }
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    text-align: center;
    padding: 40px;
}

.empty-state-icon {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-state-text {
    font-size: 16px;
    margin-bottom: 8px;
}

.empty-state-subtext {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Settings Modal */
.settings-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s;
}

.settings-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
}

.settings-content {
    position: relative;
    width: 500px;
    max-width: 90vw;
    max-height: 80vh;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 8px 32px var(--shadow);
    display: flex;
    flex-direction: column;
    animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
    from {
        transform: translateX(100px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.settings-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.settings-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.close-settings-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 24px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.close-settings-btn:hover {
    background: var(--error);
    color: white;
    transform: rotate(90deg);
}

.settings-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.settings-body::-webkit-scrollbar {
    width: 8px;
}

.settings-body::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

.settings-body::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

.settings-section {
    margin-bottom: 24px;
}

.settings-section:last-child {
    margin-bottom: 0;
}

.settings-section h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.user-info-card {
    padding: 16px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.user-info-text {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
}

.settings-select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: border-color 0.3s;
}

.settings-select:focus {
    outline: none;
    border-color: var(--accent);
}

.settings-help-text {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
}

.toggle-switch {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: background 0.3s;
}

.toggle-switch:hover {
    background: var(--bg-primary);
}

.toggle-switch input[type="checkbox"] {
    width: 48px;
    height: 24px;
    cursor: pointer;
    appearance: none;
    background: var(--border);
    border-radius: 12px;
    position: relative;
    transition: background 0.3s;
}

.toggle-switch input[type="checkbox"]:checked {
    background: var(--accent);
}

.toggle-switch input[type="checkbox"]::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    top: 2px;
    left: 2px;
    transition: transform 0.3s;
}

.toggle-switch input[type="checkbox"]:checked::before {
    transform: translateX(24px);
}

.toggle-label {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
}

.logout-button {
    width: 100%;
    padding: 12px 24px;
    background: var(--error);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
}

.logout-button:hover {
    background: #d93025;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(217, 48, 37, 0.3);
}

/* Reports Page (Full-page view) */
.reports-page-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 64px);
    padding: 24px;
    gap: 20px;
    overflow: hidden;
}

.reports-page-header {
    text-align: center;
}

.reports-page-header h1 {
    font-size: 28px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.reports-page-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.reports-page-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 16px 24px;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.report-nav-btn-large {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.report-nav-btn-large:hover:not(:disabled) {
    background: var(--bg-primary);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow);
}

.report-nav-btn-large:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.report-nav-btn-large .icon {
    width: 20px;
    height: 20px;
}

.report-page-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    min-width: 250px;
}

.report-datetime-large {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.report-counter-large {
    font-size: 13px;
    color: var(--text-secondary);
}

.reports-page-viewer {
    flex: 1;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: 0 4px 16px var(--shadow);
}

.reports-page-iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: white;
}

.back-button {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
    margin-right: 16px;
}

.back-button:hover {
    background: var(--bg-primary);
    border-color: var(--accent);
    transform: translateY(-1px);
}

.back-button .icon {
    width: 18px;
    height: 18px;
}

/* Responsive design for reports page */
@media (max-width: 768px) {
    .reports-page-container {
        padding: 16px;
        gap: 16px;
    }

    .reports-page-header h1 {
        font-size: 22px;
    }

    .reports-page-controls {
        flex-direction: column;
        gap: 12px;
        padding: 12px 16px;
    }

    .report-page-info {
        order: -1;
        width: 100%;
    }

    .report-nav-btn-large {
        width: 100%;
        justify-content: center;
    }

    .back-button {
        padding: 6px 12px;
        font-size: 13px;
    }
}

/* Icon Styles */
.icon {
    width: 20px;
    height: 20px;
    display: inline-block;
    vertical-align: middle;
    color: currentColor;
}

.icon-large {
    width: 48px;
    height: 48px;
    display: inline-block;
    color: currentColor;
    opacity: 0.5;
}

/* Logo icon specific styling */
.logo-icon .icon {
    width: 32px;
    height: 32px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

/* Theme toggle icon */
.theme-toggle .icon {
    width: 18px;
    height: 18px;
}

/* Settings icon button */
.settings-icon-btn .icon {
    width: 20px;
    height: 20px;
}

/* New conversation button icon */
.new-conversation-btn .icon {
    width: 18px;
    height: 18px;
}

/* Send button icon */
.send-button .icon {
    width: 18px;
    height: 18px;
}

/* Conversation item action icons */
.conversation-item-edit-btn .icon,
.conversation-item-delete-btn .icon {
    width: 16px;
    height: 16px;
}

/* Message avatar icons */
.message-avatar .icon {
    width: 20px;
    height: 20px;
}

/* Loading icon animation */
.empty-state-icon .icon-large {
    animation: spin 2s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Sidebar Overlay for Mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    backdrop-filter: blur(2px);
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    display: block;
}

/* Responsive Design */
@media (max-width: 768px) {
    /* Mobile: Sidebar slides over content */
    .conversations-sidebar {
        position: fixed;
        top: 68px; /* Below header */
        left: 0;
        bottom: 0;
        z-index: 999;
        box-shadow: 2px 0 8px var(--shadow);
        overflow: hidden;
    }

    .conversations-sidebar.hidden {
        transform: translateX(-100%);
    }

    .content-wrapper {
        flex-direction: column;
    }

    .settings-sidebar {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--border);
    }

    .auth-card {
        padding: 24px;
    }
}

/* ==================== API Keys Styles ==================== */

/* API Key Create Form */
.api-key-create-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.api-key-input {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    transition: border-color 0.2s ease;
}

.api-key-input:focus {
    outline: none;
    border-color: var(--primary);
}

.create-api-key-btn {
    padding: 10px 16px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.create-api-key-btn:hover {
    background-color: var(--accent-hover);
}

.create-api-key-btn:disabled {
    background-color: var(--border);
    cursor: not-allowed;
}

/* API Keys List */
.api-keys-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.api-keys-loading, .api-keys-empty, .api-keys-error {
    text-align: center;
    padding: 30px;
    color: var(--text-secondary);
    font-style: italic;
}

.api-keys-loading {
    display: flex;
    justify-content: center;
    gap: 8px;
}

.api-keys-error {
    color: var(--error);
}

/* API Key Item */
.api-key-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    transition: box-shadow 0.2s ease;
}

.api-key-item:hover {
    box-shadow: 0 2px 8px var(--shadow);
}

.api-key-item.expired,
.api-key-item.revoked {
    opacity: 0.6;
    border-color: var(--border-light);
}

.api-key-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.api-key-name {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.api-key-status {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}

.api-key-status-active {
    background-color: rgba(76, 175, 80, 0.1);
    color: #4CAF50;
}

.api-key-status-expired {
    background-color: rgba(255, 152, 0, 0.1);
    color: #FF9800;
}

.api-key-status-revoked {
    background-color: rgba(244, 67, 54, 0.1);
    color: #F44336;
}

.api-key-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
    margin-bottom: 12px;
}

.api-key-detail {
    font-size: 13px;
    color: var(--text-secondary);
}

.api-key-detail strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 2px;
}

.api-key-prefix {
    font-family: 'Courier New', monospace;
    background-color: var(--bg-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 12px;
}

.revoke-api-key-btn {
    padding: 8px 14px;
    background-color: transparent;
    color: var(--error);
    border: 1px solid var(--error);
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.revoke-api-key-btn:hover {
    background-color: var(--error);
    color: white;
}

/* API Key Reveal Modal */
.api-key-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}

.api-key-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: transparent;
}

.api-key-modal-content {
    position: relative;
    background-color: var(--bg-primary);
    border-radius: 12px;
    padding: 0;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.api-key-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.api-key-modal-header h3 {
    margin: 0;
    font-size: 20px;
    color: var(--text-primary);
}

.close-modal-btn {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.close-modal-btn:hover {
    background-color: var(--bg-secondary);
}

.api-key-modal-body {
    padding: 24px;
}

.api-key-warning {
    background-color: rgba(255, 152, 0, 0.1);
    border-left: 4px solid #FF9800;
    padding: 12px 16px;
    margin-bottom: 20px;
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 14px;
}

.api-key-display {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
}

.api-key-code {
    flex: 1;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    word-break: break-all;
    color: var(--primary);
    background-color: var(--bg-primary);
    padding: 8px;
    border-radius: 4px;
}

.copy-api-key-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.2s ease;
}

.copy-api-key-btn:hover {
    background-color: var(--accent-hover);
}

.copy-api-key-btn .icon {
    width: 16px;
    height: 16px;
}

.api-key-info {
    margin-bottom: 20px;
    padding: 16px;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.8;
}

.api-key-final-warning {
    background-color: rgba(244, 67, 54, 0.1);
    border-left: 4px solid #F44336;
    padding: 12px 16px;
    margin-bottom: 20px;
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
}

.api-key-modal-close-btn {
    width: 100%;
    padding: 12px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.api-key-modal-close-btn:hover {
    background-color: var(--accent-hover);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .api-key-display {
        flex-direction: column;
    }

    .api-key-code {
        font-size: 12px;
    }

    .copy-api-key-btn {
        width: 100%;
        justify-content: center;
    }

    .api-key-details {
        grid-template-columns: 1fr;
    }
}

/* ===================================
   API Keys Page Styles
   =================================== */

/* Page Container */
.api-keys-page {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    min-height: calc(100vh - 60px);
}

.api-keys-container {
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* Page Header */
.api-keys-page-header {
    padding: 2rem;
    border-bottom: 1px solid var(--border);
}

.api-keys-page-header h1 {
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
    color: var(--text-primary);
}

.api-keys-page-description {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Create Section */
.api-keys-create-section {
    padding: 2rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-tertiary);
}

.api-keys-create-section h2 {
    margin: 0 0 1rem 0;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.api-keys-create-form {
    margin-top: 1rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group-grow {
    flex: 1;
}

.form-group-button {
    margin-bottom: 0;
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.input-field {
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.input-field:focus {
    outline: none;
    border-color: var(--accent);
}

.input-field[type="date"] {
    min-width: 180px;
}

.form-help-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0.25rem 0 0 0;
}

/* List Section */
.api-keys-list-section {
    padding: 2rem;
}

.api-keys-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.api-keys-toolbar h2 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.toolbar-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.search-input {
    padding: 0.6rem 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.95rem;
    min-width: 250px;
    transition: border-color 0.2s ease;
}

.search-input:focus {
    outline: none;
    border-color: var(--accent);
}

/* Back Link in Header */
.back-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
    transition: background-color 0.2s ease;
}

.back-link:hover {
    background: var(--border);
}

.back-link .icon {
    width: 16px;
    height: 16px;
}

/* Loading, Empty, No Results States */
.keys-loading,
.keys-empty-state,
.keys-no-results {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
}

.keys-loading {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.keys-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.keys-empty-state .empty-state-icon {
    opacity: 0.3;
}

.keys-empty-state .icon-large {
    width: 64px;
    height: 64px;
}

.keys-empty-state h3 {
    margin: 0;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.keys-empty-state p {
    margin: 0;
    max-width: 400px;
}

/* Table Styles */
.api-keys-table-container {
    overflow-x: auto;
}

.api-keys-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.api-keys-table thead {
    background: var(--bg-tertiary);
    border-bottom: 2px solid var(--border);
}

.api-keys-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.api-keys-table th.sortable {
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease;
}

.api-keys-table th.sortable:hover {
    background-color: var(--border);
}

.api-keys-table th.actions-column {
    text-align: center;
}

.api-keys-table .sort-indicator {
    color: var(--accent);
    font-weight: bold;
}

.api-keys-table tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background-color 0.2s ease;
}

.api-keys-table tbody tr:hover {
    background-color: var(--bg-tertiary);
}

.api-keys-table td {
    padding: 1rem;
    color: var(--text-primary);
}

.key-name-cell {
    font-weight: 500;
}

.key-name {
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.key-prefix {
    font-family: 'Courier New', monospace;
    background: var(--bg-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

.date-cell {
    color: var(--text-secondary);
    white-space: nowrap;
}

.date-cell.expiring-soon {
    color: var(--warning);
    font-weight: 500;
}

.expiry-warning {
    margin-left: 0.25rem;
}

.actions-cell {
    text-align: center;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
}

.status-success {
    background-color: rgba(76, 175, 80, 0.15);
    color: #4CAF50;
}

.status-warning {
    background-color: rgba(255, 152, 0, 0.15);
    color: #FF9800;
}

.status-danger {
    background-color: rgba(244, 67, 54, 0.15);
    color: #F44336;
}

/* Action Buttons */
.action-btn {
    padding: 0.5rem;
    border: none;
    border-radius: 6px;
    background: transparent;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.action-btn .icon {
    width: 18px;
    height: 18px;
}

.action-btn-danger:hover {
    background-color: rgba(244, 67, 54, 0.1);
}

.text-muted {
    color: var(--text-secondary);
}

/* Confirm Modal */
.confirm-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.confirm-modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1;
}

.confirm-modal-content {
    position: relative;
    background: var(--bg-secondary);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    max-width: 500px;
    width: 90%;
    padding: 2rem;
    z-index: 2;
}

.confirm-modal-header {
    margin-bottom: 1rem;
}

.confirm-modal-header h3 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.confirm-modal-body {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    line-height: 1.6;
}

.confirm-modal-body p {
    margin: 0 0 1rem 0;
}

.warning-text {
    padding: 0.75rem 1rem;
    background-color: rgba(255, 152, 0, 0.1);
    border-left: 3px solid var(--warning);
    border-radius: 4px;
    font-size: 0.9rem;
}

.confirm-modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Button variants */
.button-primary {
    background-color: var(--accent);
    color: white;
}

.button-primary:hover:not(:disabled) {
    background-color: var(--accent-hover);
}

.button-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.button-secondary:hover:not(:disabled) {
    background-color: var(--border);
}

.button-danger {
    background-color: #F44336;
    color: white;
}

.button-danger:hover:not(:disabled) {
    background-color: #D32F2F;
}

.button-loading::before {
    content: "";
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 0.5rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .api-keys-page {
        padding: 1rem;
    }

    .api-keys-table {
        font-size: 0.9rem;
    }

    .api-keys-table th,
    .api-keys-table td {
        padding: 0.75rem 0.5rem;
    }
}

@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        align-items: stretch;
    }

    .form-group-button {
        margin-top: 1rem;
    }

    .api-keys-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar-actions {
        flex-direction: column;
    }

    .search-input {
        width: 100%;
    }

    /* Stack table into cards on mobile */
    .api-keys-table thead {
        display: none;
    }

    .api-keys-table,
    .api-keys-table tbody,
    .api-keys-table tr,
    .api-keys-table td {
        display: block;
        width: 100%;
    }

    .api-keys-table tr {
        margin-bottom: 1rem;
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 1rem;
    }

    .api-keys-table td {
        padding: 0.5rem 0;
        border: none;
        text-align: left !important;
        position: relative;
        padding-left: 50%;
    }

    .api-keys-table td::before {
        content: attr(data-label);
        position: absolute;
        left: 0;
        width: 45%;
        padding-left: 0.5rem;
        font-weight: 600;
        color: var(--text-secondary);
    }

    .api-keys-table td:first-child {
        padding-top: 0;
    }

    .api-keys-table td:last-child {
        padding-bottom: 0;
    }
}

@media (max-width: 480px) {
    .api-keys-page-header {
        padding: 1.5rem;
    }

    .api-keys-create-section,
    .api-keys-list-section {
        padding: 1.5rem;
    }

    .confirm-modal-content {
        padding: 1.5rem;
    }

    .confirm-modal-actions {
        flex-direction: column;
    }

    .confirm-modal-actions .button {
        width: 100%;
    }
}

/* Streaming Message Styles */
.message.streaming {
    opacity: 0.95;
}

.message-content-inner {
    min-height: 20px;
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-secondary);
    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% {
        opacity: 0.3;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-8px);
    }
}

/* Tool Call Indicator */
.tool-call-indicator {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--surface-secondary);
    border-radius: 8px;
    border-left: 3px solid var(--accent);
}

.tool-call-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-call-icon .icon {
    width: 20px;
    height: 20px;
    opacity: 0.8;
}

.tool-call-icon .icon.rotating {
    animation: rotate 2s linear infinite;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.tool-call-text {
    color: var(--text-secondary);
    font-size: 14px;
    font-style: italic;
}

/* Dark mode adjustments */
[data-theme="dark"] .tool-call-indicator {
    background: rgba(255, 255, 255, 0.05);
}

/* Light mode adjustments */
[data-theme="light"] .tool-call-indicator {
    background: rgba(0, 0, 0, 0.03);
}

/* Smooth content updates */
.message-content-inner {
    transition: opacity 0.2s ease;
}

.message.streaming .message-content-inner {
    opacity: 1;
}

/* WebSocket status indicator (optional) */
.ws-status-indicator {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 8px 16px;
    background: var(--surface-secondary);
    border-radius: 20px;
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s, transform 0.3s;
}

.ws-status-indicator.active {
    opacity: 1;
    transform: translateY(0);
}

.ws-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
}

.ws-status-indicator.connecting .ws-status-dot {
    background: var(--warning);
    animation: pulse 1.5s ease-in-out infinite;
}

.ws-status-indicator.disconnected .ws-status-dot {
    background: var(--error);
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.4;
    }
}