:root {
    --bg-app: #0f0f0f;
    --bg-panel: #161616;
    --bg-element: #1e1e1e;
    --bg-hover: #2a2a2a;

    --border-subtle: #262626;
    --border-focus: #404040;

    --text-main: #e0e0e0;
    --text-muted: #808080;

    --accent-primary: #5b8dd9;
    --accent-glow: rgba(91, 141, 217, 0.15);

    --success: #69b38a;
    --warning: #e0c285;
    --error: #e06c75;

    --font-ui: 'Inter', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --sidebar-width: 280px;
}

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

body {
    background-color: var(--bg-app);
    color: var(--text-main);
    font-family: var(--font-ui);
    height: 100vh;
    overflow: hidden;
    font-size: 14px;
    line-height: 1.5;
}

.layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 4px 1fr;
    height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
    background: var(--bg-panel);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    width: 100%;
}

.sidebar-header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-subtle);
    white-space: nowrap;
}

.brand {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-main);
}

.brand-icon {
    color: var(--accent-primary);
    font-size: 18px;
    display: flex;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 10px 12px;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 2px;
    margin: 0 0 10px;
    background: var(--bg-app);
    padding: 3px;
    border-radius: 6px;
    overflow-x: auto;
    flex-shrink: 0;
    scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
    display: none;
}

.tab-btn {
    flex: 1 0 auto;
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 6px;
    font-size: 12px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab-btn.active {
    background: var(--bg-element);
    color: var(--text-main);
    font-weight: 500;
}

/* File Tree */
.file-tree, .todos-list {
    font-family: var(--font-mono);
    font-size: 13px;
}

.file-section-title {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
    padding: 10px 8px 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.file-section-title i {
    font-size: 13px;
    color: var(--accent-primary);
}

.file-item, .todo-item {
    padding: 6px 8px;
    border-radius: 4px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: default;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-item i, .todo-item i {
    font-size: 16px;
}

.file-item span {
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-item:hover {
    background: var(--bg-element);
    color: var(--text-main);
}

/* Folder Tree Styles */
.folder-item {
    padding: 6px 8px;
    border-radius: 4px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    user-select: none;
}

.folder-item:hover {
    background: var(--bg-element);
    color: var(--text-main);
}

.folder-item.expanded {
    color: var(--text-main);
}

.folder-chevron {
    font-size: 14px;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform 0.15s ease;
}

.folder-icon {
    font-size: 16px;
    color: var(--warning);
    flex-shrink: 0;
}

.folder-item.expanded .folder-icon {
    color: var(--accent-primary);
}

.folder-children {
    /* Indented via inline padding-left */
}

.file-item.clickable {
    cursor: pointer;
}

/* --- Resizer --- */
.resizer {
    width: 4px;
    background: var(--bg-app);
    cursor: col-resize;
    transition: background 0.2s;
    z-index: 10;
}

.resizer:hover, .resizer.active {
    background: var(--accent-primary);
}

/* --- Main Area --- */
.main-area {
    display: flex;
    flex-direction: row;
    background: var(--bg-app);
    position: relative;
    height: 100%;
    overflow: hidden;
}

.chat-panel {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
    height: 100%;
    overflow: hidden;
}

/* --- File Preview Panel (overlay) --- */
.file-preview-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    min-width: 300px;
    background: var(--bg-panel);
    border-left: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    height: 100%;
    z-index: 30;
}

.file-preview-panel.hidden {
    display: none;
}

.preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-subtle);
    background: var(--bg-element);
}

.preview-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-main);
    font-weight: 500;
}

.preview-icon {
    font-size: 16px;
    color: var(--accent-primary);
    display: flex;
}

.preview-actions {
    display: flex;
    gap: 4px;
}

.preview-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    width: 28px;
    height: 28px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    font-size: 14px;
}

.preview-btn:hover {
    background: var(--bg-hover);
    color: var(--text-main);
    border-color: var(--border-focus);
}

.preview-btn.close-btn:hover {
    background: rgba(224, 108, 117, 0.15);
    color: var(--error);
    border-color: var(--error);
}

/* Preview Mode Toggle */
.preview-mode-toggle {
    display: none;
    background: var(--bg-app);
    border-radius: 4px;
    padding: 2px;
    margin-right: 8px;
}

.preview-mode-toggle.visible {
    display: flex;
}

.mode-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    width: 26px;
    height: 26px;
    border-radius: 3px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    font-size: 14px;
}

.mode-btn:hover {
    color: var(--text-main);
    background: var(--bg-hover);
}

.mode-btn.active {
    background: var(--accent-primary);
    color: #fff;
}

/* Live Preview iframe */
.live-preview-frame {
    width: 100%;
    height: 100%;
    border: none;
    background: #fff;
}

.preview-content {
    flex: 1;
    overflow: hidden;
    padding: 0;
    display: flex;
    flex-direction: column;
    background: #121212;
}

/* Prism Overrides & Code View */
.preview-content pre {
    margin: 0 !important;
    padding: 16px !important;
    background: transparent !important;
    border: none !important;
    border-radius: 0 !important;
    font-family: var(--font-mono) !important;
    font-size: 13px !important;
    line-height: 1.5 !important;
    min-height: 100%;
    overflow: auto;
}

.preview-content code {
    font-family: var(--font-mono) !important;
}

/* CSV Table View */
.csv-container {
    overflow: auto;
    width: 100%;
    height: 100%;
    padding: 0;
}

.csv-info {
    padding: 8px 16px;
    background: var(--bg-element);
    border-bottom: 1px solid var(--border-subtle);
    font-size: 11px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    position: sticky;
    top: 0;
    z-index: 3;
}

.csv-table {
    border-collapse: collapse;
    width: max-content;
    min-width: 100%;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-main);
}

.csv-table th {
    background: var(--bg-element);
    position: sticky;
    top: 28px;
    text-align: left;
    font-weight: 600;
    color: var(--accent-primary);
    border: 1px solid var(--border-subtle);
    padding: 8px 12px;
    z-index: 2;
    white-space: nowrap;
}

.csv-table th.row-num,
.csv-table td.row-num {
    background: var(--bg-panel);
    color: var(--text-muted);
    text-align: right;
    width: 40px;
    min-width: 40px;
    padding: 6px 8px;
    border-right: 2px solid var(--border-subtle);
    position: sticky;
    left: 0;
    z-index: 1;
}

.csv-table th.row-num {
    z-index: 4;
}

.csv-table td {
    border: 1px solid var(--border-subtle);
    padding: 6px 12px;
    white-space: nowrap;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.csv-table td:hover {
    white-space: pre-wrap;
    max-width: none;
    background: var(--bg-hover);
}

.csv-table tr:nth-child(even) td:not(.row-num) {
    background: rgba(255,255,255,0.02);
}

.csv-table tr:hover td:not(.row-num) {
    background: var(--bg-hover);
}

/* PDF/Embed View */
.embed-container {
    width: 100%;
    height: 100%;
    border: none;
}

/* --- Chat Stream --- */
.chat-stream {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem 12%;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.message {
    display: flex;
    flex-direction: column;
    gap: 6px;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.message-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.message-header i {
    font-size: 14px;
}

/* Copy message button */
.msg-copy-btn {
    margin-left: auto;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 13px;
    padding: 2px 6px;
    border-radius: 3px;
    opacity: 0;
    transition: all 0.15s;
}

.message:hover .msg-copy-btn {
    opacity: 0.6;
}

.msg-copy-btn:hover {
    opacity: 1 !important;
    color: var(--accent-primary);
    background: var(--bg-element);
}

.msg-copy-btn.copied {
    opacity: 1 !important;
    color: var(--success);
}

/* Attachment chips in user messages */
.msg-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
}

.msg-attach-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 12px;
    color: var(--text-muted);
    max-width: 280px;
}

.msg-attach-chip i {
    font-size: 14px;
    color: var(--accent-primary);
    flex-shrink: 0;
}

.msg-attach-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-main);
    font-weight: 500;
}

.msg-attach-size {
    flex-shrink: 0;
    font-size: 11px;
    color: var(--text-muted);
}

.msg-attach-thumb {
    width: 20px;
    height: 20px;
    border-radius: 3px;
    object-fit: cover;
    flex-shrink: 0;
}

.icon-user i { color: var(--accent-primary); }
.icon-ai i { color: var(--success); }
.icon-system i { color: var(--warning); }

.message-content {
    color: var(--text-main);
    font-size: 14px;
    line-height: 1.55;
    font-weight: 400;
}

/* Action bar below assistant messages */
.message-actions {
    display: flex;
    gap: 4px;
    margin-top: 6px;
    opacity: 0;
    transition: opacity 0.15s;
}

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

.msg-action-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    font-size: 11px;
    font-family: var(--font-ui);
    padding: 3px 10px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.15s;
}

.msg-action-btn:hover {
    color: var(--text-main);
    border-color: var(--border-focus);
    background: var(--bg-element);
}

.msg-action-btn.copied {
    color: var(--success);
    border-color: var(--success);
}

.message.user .message-content {
    color: var(--text-main);
    background: var(--bg-panel);
    padding: 10px 14px;
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
    font-family: var(--font-mono);
    font-size: 13px;
}

.welcome-banner {
    text-align: center;
    padding: 2rem;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--bg-element);
    margin-bottom: 2rem;
}

.welcome-banner h3 {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.welcome-banner p {
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.capabilities {
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.capabilities span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.message-content code {
    font-family: var(--font-mono);
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 4px;
    border-radius: 4px;
    font-size: 0.9em;
    color: var(--accent-primary);
}

.message-content p {
    margin: 0.4em 0;
}

.message-content p:first-child {
    margin-top: 0;
}

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

.message-content pre {
    background: #121212;
    border: 1px solid var(--border-subtle);
    padding: 0.75rem;
    border-radius: 6px;
    overflow-x: auto;
    margin: 0.5em 0;
}

.message-content strong {
    color: #fff;
    font-weight: 600;
}

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

.message-content del {
    text-decoration: line-through;
    color: var(--text-muted);
}

.message-content h1, .message-content h2, .message-content h3, .message-content h4 {
    color: #fff;
    margin: 0.75em 0 0.25em 0;
    font-weight: 600;
    line-height: 1.3;
}

.message-content h1:first-child,
.message-content h2:first-child,
.message-content h3:first-child {
    margin-top: 0;
}

.message-content h1 {
    font-size: 1.4em;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 0.3em;
    margin-top: 1em;
}
.message-content h2 { font-size: 1.15em; margin-top: 1em; }
.message-content h3 { font-size: 1.05em; color: var(--accent-primary); }
.message-content h4 { font-size: 0.95em; color: var(--text-muted); }

.message-content hr {
    border: none;
    border-top: 1px solid var(--border-subtle);
    margin: 0.75em 0;
}

.message-content blockquote {
    border-left: 3px solid var(--accent-primary);
    padding-left: 12px;
    color: var(--text-muted);
    margin: 0.4em 0;
}

.message-content ul, .message-content ol {
    padding-left: 1.5rem;
    margin: 0.3em 0;
}

.message-content li {
    margin: 3px 0;
    line-height: 1.5;
}

.message-content ul ul, .message-content ol ul, .message-content ul ol {
    margin: 2px 0;
}

.message-content a {
    color: var(--accent-primary);
    text-decoration: none;
    border-bottom: 1px dotted var(--accent-primary);
}

.message-content a:hover {
    color: #fff;
    border-bottom-style: solid;
}

/* Markdown tables in messages */
.md-table {
    border-collapse: collapse;
    width: 100%;
    font-size: 13px;
    font-family: var(--font-mono);
    margin: 0.5rem 0;
}

.md-table th {
    background: var(--bg-element);
    text-align: left;
    font-weight: 600;
    color: var(--accent-primary);
    border: 1px solid var(--border-subtle);
    padding: 6px 10px;
}

.md-table td {
    border: 1px solid var(--border-subtle);
    padding: 6px 10px;
}

.md-table tr:nth-child(even) td {
    background: rgba(255,255,255,0.02);
}

/* Code block wrapper with lang label and copy button */
.code-block-wrapper {
    position: relative;
    margin: 0.75rem 0;
}

.code-block-wrapper .code-lang {
    position: absolute;
    top: 6px;
    left: 12px;
    font-size: 10px;
    text-transform: uppercase;
    color: var(--text-muted);
    font-family: var(--font-mono);
    letter-spacing: 0.05em;
    z-index: 1;
}

.code-copy-btn {
    position: absolute;
    top: 6px;
    right: 8px;
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    width: 26px;
    height: 26px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    opacity: 0;
    transition: all 0.15s;
    z-index: 1;
}

.code-block-wrapper:hover .code-copy-btn {
    opacity: 1;
}

.code-copy-btn:hover {
    background: var(--bg-hover);
    color: var(--text-main);
    border-color: var(--border-focus);
}

/* Cancelled label */
.cancelled-label {
    color: var(--text-muted);
    font-size: 13px;
    font-style: italic;
    display: flex;
    align-items: center;
    gap: 6px;
}

.cancelled-label i {
    color: var(--error);
    font-size: 16px;
}

.message-tools {
    margin-bottom: 4px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.tool-call {
    font-family: var(--font-mono);
    font-size: 12px;
    background: #000;
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    overflow: hidden;
}

.tool-header {
    background: var(--bg-element);
    padding: 5px 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--border-subtle);
}

.tool-name {
    color: var(--accent-primary);
    font-weight: 600;
}

.tool-status {
    margin-left: auto;
    text-transform: uppercase;
    font-size: 10px;
    opacity: 0.7;
}

.tool-args, .tool-output pre {
    padding: 6px 10px;
    color: var(--text-muted);
    background: #000;
    margin: 0;
    white-space: pre-wrap;
    border: none;
}

.tool-output {
    border-top: 1px dashed var(--border-subtle);
}

.tool-output pre {
    color: var(--success);
}

.tool-output-wrap {
    position: relative;
}

.tool-copy-btn {
    position: absolute;
    top: 4px;
    right: 4px;
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 12px;
    padding: 3px 6px;
    border-radius: 4px;
    opacity: 0;
    transition: all 0.15s;
}

.tool-output-wrap:hover .tool-copy-btn {
    opacity: 0.7;
}

.tool-copy-btn:hover {
    opacity: 1 !important;
    color: var(--accent-primary);
}

.tool-copy-btn.copied {
    opacity: 1 !important;
    color: var(--success);
}

/* Input Area */
.input-container {
    padding: 12px 12%;
    background: var(--bg-app);
    border-top: 1px solid var(--border-subtle);
}

/* Background agents badge */
.bg-agents-badge {
    display: none;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    margin-bottom: 8px;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.25);
    border-radius: 100px;
    color: #a855f7;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--font-ui);
    width: fit-content;
}

.bg-agents-badge i.spinning {
    animation: spin 1s linear infinite;
}

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

/* Attached files preview */
.attached-files {
    display: none;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.attachment-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 6px 10px;
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--text-main);
    animation: fadeIn 0.2s ease-out;
}

.attachment-chip i {
    font-size: 14px;
    color: var(--accent-primary);
}

.attachment-thumb {
    width: 24px;
    height: 24px;
    object-fit: cover;
    border-radius: 3px;
}

.attachment-name {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.attachment-size {
    color: var(--text-muted);
    font-size: 10px;
}

.attachment-remove {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 0;
    display: flex;
    line-height: 1;
    transition: color 0.15s;
}

.attachment-remove:hover {
    color: var(--error);
}

.input-wrapper {
    position: relative;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 0;
    transition: border-color 0.2s;
    display: flex;
    align-items: flex-end;
}

.input-wrapper:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 1px var(--accent-glow);
}

.input-icon-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    width: 36px;
    height: 36px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s;
    flex-shrink: 0;
    margin-bottom: 10px;
    margin-left: 4px;
    font-size: 18px;
}

.input-icon-btn:hover {
    color: var(--accent-primary);
}

.input-icon-btn.stop-btn {
    color: var(--error);
    animation: pulse 1s infinite;
}

.input-icon-btn.stop-btn:hover {
    color: #fff;
    background: var(--error);
    border-radius: 4px;
}

#message-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 16px 8px;
    font-family: var(--font-ui);
    font-size: 15px;
    resize: none;
    outline: none;
    min-height: 56px;
    max-height: 200px;
}

#send-btn {
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
    margin: 0 8px 10px 0;
}

#send-btn i { font-size: 16px; }

#send-btn:hover:not(:disabled) {
    background: var(--accent-primary);
    color: #fff;
    border-color: var(--accent-primary);
}

#stop-btn {
    margin: 0 8px 10px 0;
}

/* Drag & drop overlay on chat */
.chat-panel.drag-active {
    outline: 2px dashed var(--accent-primary);
    outline-offset: -4px;
    background: var(--accent-glow);
}

.input-hints {
    display: flex;
    gap: 6px;
    margin-top: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
}

.input-hints button {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    padding: 6px 12px;
    border-radius: 100px;
    font-size: 11px;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.input-hints button i { font-size: 14px; }

.input-hints button:hover {
    border-color: var(--text-muted);
    color: var(--text-main);
}

.message-thinking {
    border-left: 2px solid var(--border-focus);
    margin: 8px 0;
    padding-left: 12px;
}

.thinking-label {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 4px;
    display: block;
}

.thinking-content {
    font-size: 13px;
    color: #555;
    font-family: var(--font-mono);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #444;
}

@media (max-width: 1000px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .sidebar, .resizer {
        display: none;
    }

    .chat-stream, .input-container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    .tasks-panel {
        margin: 0 1rem;
    }
}

/* --- Inline TODO Display in Chat --- */
.message-todos {
    margin-top: 12px;
    padding: 12px 14px;
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 12px;
}

.todos-header {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-subtle);
}

.todos-header i {
    font-size: 12px;
    color: var(--accent-primary);
}

.todos-count {
    margin-left: auto;
    color: var(--text-main);
    font-weight: 500;
}

.todos-items {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.todo-item-inline {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 4px 0;
    color: var(--text-main);
    line-height: 1.4;
}

.todo-item-inline i {
    font-size: 14px;
    flex-shrink: 0;
    margin-top: 1px;
}

.todo-item-inline.completed {
    color: var(--text-muted);
    text-decoration: line-through;
    opacity: 0.7;
}

.todo-item-inline.completed i {
    color: var(--success);
}

.todo-item-inline.in_progress i {
    color: var(--warning);
    animation: pulse 1.5s infinite;
}

.todo-item-inline.pending i {
    color: var(--text-muted);
}

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

.todos-empty {
    color: var(--text-muted);
    font-style: italic;
    font-size: 11px;
}

/* --- Sticky Tasks Panel (above input) --- */
.tasks-panel {
    margin: 0 15%;
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    border-bottom: none;
    border-radius: 10px 10px 0 0;
    overflow: hidden;
    transition: all 0.3s ease;
}
.tasks-panel.all-done {
    background: rgba(105, 179, 138, 0.08);
    border-color: rgba(105, 179, 138, 0.2);
}

.tasks-header {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 14px;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: background 0.15s;
}
.tasks-header:hover { background: var(--bg-hover); }
.tasks-header > i:first-child {
    font-size: 14px;
    color: var(--accent-primary);
}
.tasks-panel.all-done .tasks-header > i:first-child {
    color: var(--success);
}

.tasks-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.tasks-badge {
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 600;
    background: var(--accent-primary);
    color: #fff;
}
.tasks-panel.all-done .tasks-badge {
    background: var(--success);
}

.tasks-elapsed {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    color: var(--text-muted);
}
.tasks-elapsed i { font-size: 11px; }

.tasks-chevron {
    font-size: 16px;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}
.tasks-panel.expanded .tasks-chevron {
    transform: rotate(180deg);
}

/* Progress bar */
.tasks-progress-bar {
    height: 3px;
    background: var(--bg-app);
}
.tasks-progress-fill {
    height: 100%;
    background: var(--accent-primary);
    transition: width 0.5s ease;
    width: 0%;
}
.tasks-panel.all-done .tasks-progress-fill {
    background: var(--success);
}

/* Collapsed preview (current task) */
.tasks-preview {
    padding: 8px 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-subtle);
}
.tasks-preview i {
    font-size: 12px;
    color: var(--warning);
    animation: spin 1s linear infinite;
}
.tasks-preview .tasks-more {
    margin-left: auto;
    font-size: 10px;
    color: var(--text-muted);
    flex-shrink: 0;
}

/* Expanded task list */
.tasks-list {
    padding: 6px 10px 10px;
    max-height: 220px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.task-row {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 5px 6px;
    border-radius: 6px;
    font-size: 12px;
    line-height: 1.4;
    animation: task-slide-in 0.25s ease-out;
}
.task-row.in_progress {
    background: rgba(224, 194, 133, 0.06);
    color: var(--warning);
}
.task-row.completed {
    color: var(--text-muted);
}
.task-row.completed span { text-decoration: line-through; opacity: 0.7; }

.task-row .task-icon {
    flex-shrink: 0;
    font-size: 14px;
    margin-top: 1px;
}
.task-row.pending .task-icon { color: var(--text-muted); }
.task-row.in_progress .task-icon {
    color: var(--warning);
    position: relative;
}
.task-row.in_progress .task-icon i { animation: spin 1s linear infinite; }
.task-row.in_progress .task-icon::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    border: 1.5px solid var(--warning);
    animation: task-pulse-ring 1.5s ease-out infinite;
    opacity: 0;
}
.task-row.completed .task-icon {
    color: var(--success);
    animation: task-check-pop 0.3s ease-out;
}

/* Task panel animations */
@keyframes task-slide-in {
    from { opacity: 0; transform: translateX(-8px); }
    to   { opacity: 1; transform: translateX(0); }
}
@keyframes task-check-pop {
    0%   { transform: scale(0); opacity: 0; }
    60%  { transform: scale(1.3); }
    100% { transform: scale(1); opacity: 1; }
}
@keyframes task-pulse-ring {
    0%   { transform: scale(1); opacity: 0.4; }
    100% { transform: scale(1.8); opacity: 0; }
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* File Link Styles */
.file-link {
    color: var(--accent-primary);
    cursor: pointer;
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 2px;
}

.file-link:hover {
    text-decoration-style: solid;
    color: #fff;
}

/* --- Excalidraw Link --- */
.excalidraw-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    margin: 4px 0;
    background: rgba(105, 65, 198, 0.15);
    border: 1px solid rgba(105, 65, 198, 0.3);
    border-radius: 6px;
    color: #a78bfa;
    text-decoration: none;
    font-size: 13px;
    transition: all 0.2s;
}

.excalidraw-link:hover {
    background: rgba(105, 65, 198, 0.25);
    border-color: rgba(105, 65, 198, 0.5);
    color: #c4b5fd;
}

.excalidraw-link i {
    font-size: 16px;
}

/* --- Excalidraw Inline Canvas (in chat flow) --- */
.excalidraw-inline {
    border: 1px solid rgba(105, 65, 198, 0.25);
    border-radius: 8px;
    overflow: hidden;
    background: var(--bg-element);
}

.excalidraw-inline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    background: rgba(105, 65, 198, 0.08);
    border-bottom: 1px solid rgba(105, 65, 198, 0.12);
    cursor: pointer;
}

.excalidraw-inline-title {
    font-size: 12px;
    font-weight: 500;
    color: #a78bfa;
    display: flex;
    align-items: center;
    gap: 6px;
}

.excalidraw-inline-title i {
    font-size: 14px;
}

.excalidraw-inline-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 16px;
    padding: 2px;
    border-radius: 4px;
    transition: color 0.15s;
}
.excalidraw-inline-toggle:hover {
    color: var(--text-main);
}

.excalidraw-inline-iframe {
    border: none;
    background: #fff;
    width: 100%;
    height: 450px;
    display: block;
}

.excalidraw-inline.collapsed .excalidraw-inline-iframe {
    display: none;
}
.excalidraw-inline.collapsed .excalidraw-inline-toggle i {
    transform: rotate(180deg);
}

/* Compact Excalidraw tool cards */
.excalidraw-compact {
    border-color: rgba(105, 65, 198, 0.2) !important;
    padding: 6px 10px !important;
}

.excalidraw-compact .tool-header {
    margin: 0;
}

.excalidraw-tool .tool-name {
    color: #a78bfa;
}

.excalidraw-tool .tool-name i {
    margin-right: 4px;
}

.excalidraw-compact .tool-output {
    margin-top: 0;
}

/* --- Collapsible Tool Cards --- */
.tool-call.collapsible.collapsed .tool-args,
.tool-call.collapsible.collapsed .tool-output {
    display: none;
}

.tool-call.collapsible .tool-header {
    border-bottom: none;
}

.tool-call.collapsible:not(.collapsed) .tool-header {
    border-bottom: 1px solid var(--border-subtle);
}

.tool-call.collapsible .collapse-chevron {
    margin-left: auto;
    font-size: 14px;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}

.tool-call.collapsible:not(.collapsed) .collapse-chevron {
    transform: rotate(180deg);
}

/* --- Web Search Tool Cards --- */
.search-tool-card {
    border-left: 3px solid var(--search-color, var(--accent-primary)) !important;
    background: #000 !important;
}

.search-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    cursor: pointer;
    transition: background 0.15s;
    user-select: none;
}

.search-card-header:hover {
    background: var(--bg-hover);
}

.search-provider {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    font-size: 12px;
    color: var(--search-color, var(--accent-primary));
    white-space: nowrap;
}

.search-provider i {
    font-size: 15px;
}

.search-query {
    flex: 1;
    min-width: 0;
    color: var(--text-muted);
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-style: italic;
}

.search-status {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 10px;
    text-transform: uppercase;
    white-space: nowrap;
    flex-shrink: 0;
}

.search-status.running {
    color: var(--search-color, var(--accent-primary));
}

.search-status.running i {
    animation: spin 1s linear infinite;
}

.search-status.done {
    display: none;
}

.search-expand-icon {
    font-size: 14px;
    color: var(--text-muted);
    transition: transform 0.2s ease;
    flex-shrink: 0;
}

.search-tool-card.expanded .search-expand-icon {
    transform: rotate(180deg);
}

.search-tool-card .tool-output {
    display: none;
    border-top: 1px dashed rgba(255, 255, 255, 0.06);
}

.search-tool-card.expanded .tool-output {
    display: block;
}

.search-results-wrap {
    padding: 8px 12px;
    position: relative;
}

.search-results-wrap pre {
    color: var(--text-muted);
    font-size: 11px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
    background: none;
    border: none;
    padding: 0;
}

.search-show-more {
    display: block;
    margin-top: 6px;
    background: none;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: all 0.15s;
}

.search-show-more:hover {
    color: var(--text-main);
    border-color: var(--border-focus);
    background: var(--bg-element);
}

/* --- Config Panel --- */
.config-panel {
    font-family: var(--font-mono);
    font-size: 12px;
}

.config-section {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.config-section:last-child {
    border-bottom: none;
}

.config-section-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.config-section-title i {
    font-size: 13px;
    color: var(--accent-primary);
}

.config-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 0;
    gap: 8px;
}

.config-label {
    color: var(--text-main);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.config-value {
    color: var(--text-muted);
    font-size: 11px;
    text-align: right;
    flex-shrink: 0;
}

.config-value.tag {
    background: var(--bg-app);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.config-sub-item {
    font-size: 10px;
    color: var(--text-muted);
    padding-left: 12px;
    padding-top: 2px;
}

/* --- Middleware Events in Chat (hidden by default) --- */
.middleware-badge {
    display: none;
}

/* --- Checkpointing: Timeline Panel --- */

.timeline-panel {
    font-family: var(--font-mono);
    font-size: 12px;
    overflow-y: auto;
    flex: 1;
    padding: 0 12px;
}

.timeline-empty {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
}

.timeline-empty i {
    font-size: 32px;
    display: block;
    margin-bottom: 8px;
    opacity: 0.3;
}

.timeline-empty p {
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: 4px;
}

.timeline-empty span {
    font-size: 11px;
}

.timeline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.timeline-list {
    display: flex;
    flex-direction: column;
}

.timeline-item {
    display: flex;
    gap: 12px;
    position: relative;
}

.timeline-dot-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 12px;
    flex-shrink: 0;
}

.timeline-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-focus);
    border: 2px solid var(--bg-panel);
    flex-shrink: 0;
    margin-top: 4px;
    z-index: 1;
}

.timeline-dot.pulse {
    background: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
    animation: checkpoint-pulse 2s ease-in-out infinite;
}

@keyframes checkpoint-pulse {
    0%, 100% { box-shadow: 0 0 0 2px var(--accent-glow); }
    50% { box-shadow: 0 0 0 5px transparent; }
}

.timeline-line {
    width: 2px;
    flex: 1;
    background: var(--border-subtle);
    min-height: 8px;
}

.timeline-item:last-child .timeline-line {
    display: none;
}

.timeline-content {
    flex: 1;
    padding-bottom: 14px;
    min-width: 0;
}

.timeline-label {
    font-weight: 600;
    color: var(--text-main);
    font-size: 12px;
    margin-bottom: 4px;
    word-break: break-word;
}

.timeline-item.latest .timeline-label {
    color: var(--accent-primary);
}

.timeline-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 10px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.timeline-meta span {
    display: flex;
    align-items: center;
    gap: 3px;
}

.timeline-meta i {
    font-size: 11px;
}

.timeline-tool {
    background: var(--bg-app);
    padding: 1px 5px;
    border-radius: 3px;
}

.timeline-time {
    margin-left: auto;
}

.timeline-actions {
    display: flex;
    gap: 6px;
    margin-top: 4px;
}

.timeline-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    padding: 3px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 10px;
    font-family: var(--font-mono);
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.15s;
}

.timeline-btn i {
    font-size: 11px;
}

.timeline-btn.rewind:hover {
    border-color: var(--warning);
    color: var(--warning);
    background: rgba(224, 194, 133, 0.08);
}

.timeline-btn.fork:hover {
    border-color: #3b82f6;
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.08);
}

/* Inline checkpoint badge in chat (hidden by default) */
/* --- Right-Side Conversation Outline Panel --- */
.outline-panel {
    width: 220px;
    min-width: 220px;
    background: var(--bg-panel);
    border-left: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    transition: width 0.2s ease, min-width 0.2s ease, opacity 0.2s ease;
}

.outline-panel.collapsed {
    width: 0;
    min-width: 0;
    border-left: none;
    opacity: 0;
    pointer-events: none;
}

.outline-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
    gap: 6px;
}

.outline-tabs {
    display: flex;
    gap: 2px;
    background: var(--bg-app);
    padding: 3px;
    border-radius: 6px;
    flex: 1;
}

.outline-tab {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: all 0.15s;
    white-space: nowrap;
}

.outline-tab:hover {
    color: var(--text-main);
    background: var(--bg-hover);
}

.outline-tab.active {
    background: var(--bg-element);
    color: var(--text-main);
}

.outline-title {
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.outline-title i {
    font-size: 13px;
    color: var(--accent-primary);
}

.outline-toggle-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 2px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.outline-toggle-btn:hover {
    color: var(--text-main);
    background: var(--bg-element);
}

.outline-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
}

.outline-item {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    padding: 5px 12px;
    cursor: pointer;
    transition: background 0.1s;
    font-size: 11px;
    line-height: 1.4;
    border-left: 2px solid transparent;
}

.outline-item:hover {
    background: var(--bg-element);
}

.outline-item.active {
    background: var(--bg-element);
    border-left-color: var(--accent-primary);
}

.outline-item-icon {
    flex-shrink: 0;
    font-size: 13px;
    margin-top: 1px;
    width: 16px;
    text-align: center;
}

.outline-item.user .outline-item-icon {
    color: var(--accent-primary);
}

.outline-item.assistant .outline-item-icon {
    color: var(--success);
}

.outline-item.system .outline-item-icon {
    color: var(--warning);
}

.outline-item.tool .outline-item-icon {
    color: var(--text-muted);
}

.outline-item-text {
    flex: 1;
    min-width: 0;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--font-mono);
}

.outline-item.active .outline-item-text {
    color: var(--text-main);
}

.outline-empty {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
    font-size: 11px;
    font-family: var(--font-mono);
}

/* Outline panel toggle button floating (visible when panel is collapsed) */
.outline-float-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    cursor: pointer;
    width: 28px;
    height: 28px;
    border-radius: 4px;
    font-size: 14px;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 5;
    transition: all 0.15s;
}

.outline-float-btn:hover {
    color: var(--text-main);
    border-color: var(--border-focus);
    background: var(--bg-hover);
}

/* --- Ask User (plan mode questions) --- */
.ask-user-container {
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    border-left: 3px solid var(--accent-primary);
    border-radius: 8px;
    padding: 16px;
    margin: 8px 0;
}
.ask-user-container.answered {
    opacity: 0.6;
    pointer-events: none;
}
.ask-user-container.answered .ask-user-options,
.ask-user-container.answered .ask-user-custom {
    display: none;
}

.ask-user-question {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: 12px;
    line-height: 1.5;
}
.ask-user-question i {
    color: var(--accent-primary);
    margin-right: 6px;
}

.ask-user-options {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}

.ask-user-option {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 10px 14px;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    cursor: pointer;
    text-align: left;
    color: var(--text-main);
    transition: border-color 0.15s, background 0.15s;
}
.ask-user-option:hover {
    border-color: var(--accent-primary);
    background: var(--accent-glow);
}
.ask-user-option.recommended {
    border-color: rgba(105, 179, 138, 0.4);
}
.ask-user-option.recommended:hover {
    border-color: var(--success);
}

.option-top {
    display: flex;
    align-items: center;
    gap: 8px;
}
.option-label {
    font-size: 13px;
    font-weight: 600;
}
.option-badge {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--success);
    background: rgba(105, 179, 138, 0.12);
    padding: 2px 6px;
    border-radius: 3px;
}
.option-desc {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.4;
}

.ask-user-custom {
    display: flex;
    gap: 6px;
}
.ask-user-input {
    flex: 1;
    padding: 8px 12px;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    color: var(--text-main);
    font-size: 13px;
    font-family: var(--font-ui);
    outline: none;
}
.ask-user-input:focus {
    border-color: var(--accent-primary);
}
.ask-user-input::placeholder {
    color: var(--text-muted);
}
.ask-user-submit {
    padding: 8px 12px;
    background: var(--accent-primary);
    border: none;
    border-radius: 6px;
    color: #fff;
    cursor: pointer;
    font-size: 13px;
}
.ask-user-submit:hover {
    filter: brightness(1.15);
}

.ask-user-answered {
    margin-top: 10px;
    padding: 8px 12px;
    background: rgba(105, 179, 138, 0.1);
    border: 1px solid rgba(105, 179, 138, 0.3);
    border-radius: 6px;
    font-size: 13px;
    color: var(--success);
    font-weight: 500;
}
.ask-user-answered i {
    margin-right: 4px;
}

/* --- Toast notifications (background tasks) --- */
.toast-container {
    position: fixed;
    bottom: 16px;
    right: 16px;
    display: flex;
    flex-direction: column-reverse;
    gap: 8px;
    z-index: 1000;
    max-width: 380px;
}

.toast {
    display: flex;
    gap: 10px;
    padding: 12px 14px;
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    border-left: 3px solid var(--text-muted);
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4);
    animation: toast-in 0.3s ease;
    position: relative;
}

.toast-success { border-left-color: var(--success); }
.toast-error   { border-left-color: var(--error); }
.toast-info    { border-left-color: var(--accent-primary); }

.toast-exit {
    animation: toast-out 0.3s ease forwards;
}

@keyframes toast-in {
    from { opacity: 0; transform: translateX(40px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes toast-out {
    from { opacity: 1; transform: translateX(0); }
    to   { opacity: 0; transform: translateX(40px); }
}

.toast-icon {
    font-size: 18px;
    flex-shrink: 0;
    margin-top: 1px;
}
.toast-success .toast-icon { color: var(--success); }
.toast-error   .toast-icon { color: var(--error); }
.toast-info    .toast-icon { color: var(--accent-primary); }

.toast-body {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 2px;
}

.toast-desc {
    font-size: 11px;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.toast-error {
    font-size: 11px;
    color: var(--error);
    margin-top: 4px;
}

.toast-view-btn {
    margin-top: 6px;
    padding: 3px 10px;
    font-size: 11px;
    background: var(--accent-primary);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
.toast-view-btn:hover {
    filter: brightness(1.15);
}

.toast-close {
    position: absolute;
    top: 6px;
    right: 6px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 14px;
    padding: 2px;
    line-height: 1;
}
.toast-close:hover {
    color: var(--text-main);
}

/* Task result notice (inserted from toast View button) */
.task-result-notice {
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    border-left: 3px solid var(--accent-primary);
    border-radius: 6px;
    padding: 12px;
}
.task-result-header {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-primary);
    margin-bottom: 8px;
}
.task-result-header i {
    margin-right: 4px;
}
.task-result-body {
    font-size: 13px;
    line-height: 1.5;
}

/* --- Subagent Result Cards (inline in chat) --- */
.subagent-result-card {
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    overflow: hidden;
    margin: 4px 0;
    animation: task-slide-in 0.3s ease-out;
}
.subagent-result-card.completed {
    border-left: 3px solid var(--success);
}
.subagent-result-card.failed {
    border-left: 3px solid var(--error);
}
.subagent-result-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    background: var(--bg-element);
    font-family: var(--font-mono);
    font-size: 12px;
}
.subagent-result-name {
    font-weight: 600;
}
.subagent-result-status {
    margin-left: auto;
    font-size: 11px;
    display: flex;
    align-items: center;
    gap: 4px;
}
.subagent-result-status.completed {
    color: var(--success);
}
.subagent-result-status.failed {
    color: var(--error);
}
.subagent-result-desc {
    padding: 6px 10px;
    font-size: 12px;
    color: var(--text-muted);
    border-top: 1px solid var(--border-subtle);
}
.subagent-result-body {
    border-top: 1px solid var(--border-subtle);
    padding: 10px;
    font-size: 13px;
    line-height: 1.5;
    max-height: 300px;
    overflow-y: auto;
}
.subagent-result-body.collapsed {
    display: none;
}
.subagent-result-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    width: 100%;
    padding: 6px 10px;
    border: none;
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-element);
    color: var(--text-muted);
    font-size: 11px;
    font-family: var(--font-mono);
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
}
.subagent-result-toggle:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}
.subagent-result-error {
    padding: 8px 10px;
    font-size: 12px;
    color: var(--error);
    background: rgba(239, 68, 68, 0.06);
    border-top: 1px solid var(--border-subtle);
}

/* -----------------------------------------------------------------------
   Session List Sidebar
   ----------------------------------------------------------------------- */
.sessions-panel {
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
    flex: 1;
    overflow-y: auto;
}

.new-session-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    width: calc(100% - 8px);
    margin: 4px;
    padding: 7px 10px;
    background: transparent;
    color: var(--text-muted);
    border: 1px dashed var(--border-subtle);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}
.new-session-btn:hover {
    color: var(--text-main);
    border-color: var(--accent-primary);
    background: var(--accent-glow);
}
.new-session-btn i {
    font-size: 14px;
}

.sessions-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.sessions-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 12px;
    padding: 24px 12px;
}
.sessions-empty i {
    display: block;
    font-size: 24px;
    margin-bottom: 6px;
    opacity: 0.3;
}

.session-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    cursor: pointer;
    transition: background 0.12s;
    border-left: 2px solid transparent;
}
.session-item:hover {
    background: var(--bg-hover);
}
.session-item.session-active {
    background: var(--accent-glow);
    border-left-color: var(--accent-primary);
}

.session-item-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.session-title {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.session-item.session-active .session-title {
    color: var(--accent-primary);
}

.session-meta {
    font-size: 10px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.session-delete-btn {
    opacity: 0;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 13px;
    padding: 2px 4px;
    border-radius: 4px;
    flex-shrink: 0;
    transition: opacity 0.15s, color 0.15s;
}
.session-item:hover .session-delete-btn {
    opacity: 1;
}
.session-delete-btn:hover {
    color: var(--error);
    background: rgba(224, 108, 117, 0.1);
}


/* -----------------------------------------------------------------------
   Approval Dialog
   ----------------------------------------------------------------------- */
.approval-dialog {
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-left: 3px solid var(--warning);
    border-radius: 8px;
    padding: 16px;
    margin: 8px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
.approval-dialog h4 {
    margin: 0 0 10px;
    font-size: 14px;
    color: var(--warning);
    display: flex;
    align-items: center;
    gap: 6px;
}
.approval-dialog p {
    font-size: 12px;
    color: var(--text-muted);
    margin: 0 0 12px;
}

.approval-item {
    background: var(--bg-element);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 10px 12px;
    margin-bottom: 8px;
}

.approval-tool {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 13px;
    margin-bottom: 6px;
}
.approval-tool .tool-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(224, 194, 133, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--warning);
    font-size: 14px;
    flex-shrink: 0;
}

.approval-args {
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--bg-app);
    border-radius: 4px;
    padding: 8px;
    max-height: 200px;
    overflow: auto;
    white-space: pre-wrap;
    color: var(--text-muted);
}

.approval-buttons {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 12px;
}
.approve-btn, .deny-btn {
    padding: 6px 16px;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: filter 0.2s;
}
.approve-btn {
    background: var(--success);
    color: #fff;
}
.deny-btn {
    background: var(--error);
    color: #fff;
}
.approve-btn:hover, .deny-btn:hover {
    filter: brightness(1.15);
}


/* -----------------------------------------------------------------------
   Subagent Delegation Cards
   ----------------------------------------------------------------------- */
.subagent-delegation {
    background: var(--bg-element) !important;
    border: 1px solid var(--border-subtle) !important;
    border-left: 3px solid #06b6d4 !important;
    border-radius: 8px !important;
    padding: 10px 12px !important;
}

.subagent-header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.subagent-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    background: rgba(6, 182, 212, 0.15);
    color: #06b6d4;
}

.subagent-info {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
}

.subagent-name {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-main);
}

.subagent-status {
    font-size: 11px;
    color: var(--text-muted);
}
.subagent-status.running {
    color: var(--warning);
    animation: pulse 1.5s infinite;
}
.subagent-status.done {
    display: none;
}

.subagent-task {
    background: var(--bg-app);
    border-radius: 4px;
    padding: 8px;
    margin-top: 8px;
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--text-muted);
    white-space: pre-wrap;
}

.subagent-result {
    border-top: 1px dashed var(--border-subtle);
    padding-top: 8px;
    margin-top: 8px;
    max-height: 300px;
    overflow-y: auto;
    font-size: 12px;
    color: var(--text-muted);
    white-space: pre-wrap;
}

/* -----------------------------------------------------------------------
   Team Agent Cards
   ----------------------------------------------------------------------- */
.team-card {
    background: var(--bg-element) !important;
    border: 1px solid var(--border-subtle) !important;
    border-left: 3px solid #a855f7 !important;
    border-radius: 8px !important;
    padding: 10px 12px !important;
}

.team-members {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
    padding: 8px;
    background: var(--bg-app);
    border-radius: 6px;
}

.team-member {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--bg-panel);
    border-radius: 6px;
    border: 1px solid var(--border-subtle);
    min-width: 120px;
}

.team-member-avatar {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    flex-shrink: 0;
}

.team-member-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.team-member-name {
    font-weight: 600;
    font-size: 12px;
    color: var(--text-main);
}

.team-member-role {
    font-size: 10px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}


/* -----------------------------------------------------------------------
   Tool Card Icons & Categories
   ----------------------------------------------------------------------- */
.tool-header .tool-icon-badge {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    flex-shrink: 0;
}

.tool-call.running .tool-header {
    animation: tool-shimmer 2s ease-in-out infinite;
}

@keyframes tool-shimmer {
    0%, 100% { background: var(--bg-element); }
    50% { background: #232323; }
}

/* Tool Groups — consecutive same-tool calls */
.tool-group {
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    overflow: hidden;
}

.tool-group-header {
    background: var(--bg-element);
    padding: 5px 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.tool-group-header:hover {
    background: #232323;
}

.tool-group-header .tool-name {
    font-weight: 600;
}

.tool-group-count {
    color: var(--text-muted);
    font-size: 11px;
    background: rgba(255,255,255,0.08);
    padding: 1px 6px;
    border-radius: 8px;
    margin-left: auto;
}

.tool-group.collapsed .tool-group-items {
    display: none;
}

.tool-group.collapsed .tool-group-header {
    border-bottom: none;
}

.tool-group-items .tool-call {
    border: none;
    border-radius: 0;
    border-bottom: 1px solid var(--border-subtle);
}

.tool-group-items .tool-call:last-child {
    border-bottom: none;
}

.tool-group-header .collapse-chevron {
    transition: transform 0.15s;
}

.tool-group.collapsed .tool-group-header .collapse-chevron {
    transform: rotate(0deg);
}

.tool-group:not(.collapsed) .tool-group-header .collapse-chevron {
    transform: rotate(180deg);
}


/* -----------------------------------------------------------------------
   Thinking Section — Purple Theme
   ----------------------------------------------------------------------- */
.message-thinking {
    border-left: 3px solid #8b5cf6;
    background: rgba(139, 92, 246, 0.04);
    border-radius: 0 6px 6px 0;
    margin: 8px 0;
    padding: 10px 12px;
    transition: max-height 0.3s ease;
}

.thinking-label {
    font-size: 11px;
    font-weight: 600;
    color: #8b5cf6;
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    user-select: none;
    text-transform: uppercase;
    margin-bottom: 6px;
}
.thinking-label:hover {
    color: #a78bfa;
}

.thinking-content {
    font-size: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    max-height: 250px;
    overflow-y: auto;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    white-space: pre-wrap;
}

.message-thinking.collapsed .thinking-content {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    margin: 0;
}


/* -----------------------------------------------------------------------
   Welcome Screen — Recent Sessions
   ----------------------------------------------------------------------- */

.welcome-sessions {
    margin-top: 1.25rem;
    text-align: left;
}

.welcome-sessions-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 8px;
    padding-left: 2px;
}

.welcome-sessions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 8px;
}

.welcome-session-card {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px 12px;
    background: var(--bg-app);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    cursor: pointer;
    text-align: left;
    color: var(--text-main);
    font-family: var(--font-ui);
    transition: border-color 0.15s, background 0.15s;
}

.welcome-session-card:hover {
    border-color: var(--accent-primary);
    background: var(--accent-glow);
}

.wsc-title {
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.wsc-meta {
    font-size: 11px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.welcome-sessions-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px;
    color: var(--text-muted);
    font-size: 13px;
}

.welcome-sessions-empty i {
    font-size: 16px;
    color: var(--accent-primary);
}

/* -----------------------------------------------------------------------
   Animated Status Indicators
   ----------------------------------------------------------------------- */

/* Streaming cursor */
.streaming-cursor::after {
    content: '|';
    animation: blink-cursor 0.8s step-end infinite;
    color: var(--accent-primary);
    font-weight: 300;
}

@keyframes blink-cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Typing indicator (three dots) */
.typing-indicator {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 4px 8px;
}
.typing-indicator .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: typing-bounce 1.4s infinite ease-in-out both;
}
.typing-indicator .dot:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator .dot:nth-child(2) { animation-delay: -0.16s; }
.typing-indicator .dot:nth-child(3) { animation-delay: 0s; }

@keyframes typing-bounce {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

/* Tool card fade in */
.tool-call {
    animation: fadeIn 0.2s ease;
}

/* Tool status done — green check with pop */
.tool-status.done {
    color: var(--success);
    font-size: 13px;
    animation: check-pop 0.3s ease-out;
}

@keyframes check-pop {
    0% { transform: scale(0); opacity: 0; }
    60% { transform: scale(1.3); }
    100% { transform: scale(1); opacity: 1; }
}


@media (max-width: 1000px) {
    .outline-panel {
        display: none;
    }
    .outline-float-btn {
        display: none !important;
    }
}