/* PhoneIDE - Mobile-Optimized Dark Theme CSS */
:root {
    --bg-primary: #FAF9F6;
    --bg-secondary: #F5F0E8;
    --bg-tertiary: #EDE8DB;
    --bg-surface: #FFFFFF;
    --bg-hover: #E8E2D6;
    --bg-active: #D4C5B0;
    --text-primary: #2D2319;
    --text-secondary: #5C4A3A;
    --text-muted: #8B7355;
    --accent: #C4621A;
    --accent-hover: #A8510F;
    --green: #2D7D46;
    --red: #C0392B;
    --yellow: #B8860B;
    --orange: #D97706;
    --blue: #2563EB;
    --mauve: #7C3AED;
    --teal: #0D9488;
    --border: #D4C5B0;
    --border-light: #C4B5A0;
    --radius: 8px;
    --radius-sm: 4px;
    --toolbar-height: 44px;
    --sidebar-width: 360px;
    --bottom-panel-height: 85vh;  /* fallback; overridden below for modern browsers */
    --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', 'JetBrains Mono', 'Consolas', monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --footer-height: 24px;
    --safe-top: env(safe-area-inset-top, 0px);
    --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* Use dvh (dynamic viewport height) when available — excludes system chrome
   on Android WebView, giving correct visible area calculations */
@supports (height: 100dvh) {
    :root {
        --bottom-panel-height: 85dvh;
    }
    @media (orientation: landscape) and (max-height: 500px) {
        :root {
            --bottom-panel-height: 85dvh;
        }
    }
}

/* Dark theme override — Claude Code Warm Style */
[data-theme="dark"] {
    --bg-primary: #1a1510;
    --bg-secondary: #231e17;
    --bg-tertiary: #16120d;
    --bg-surface: #2d2620;
    --bg-hover: #3a3228;
    --bg-active: #4a3f33;
    --text-primary: #f5f0eb;
    --text-secondary: #b5a898;
    --text-muted: #7d7068;
    --accent: #e8853d;
    --accent-hover: #d4752f;
    --green: #6bc96b;
    --red: #e85d5d;
    --yellow: #e8c45d;
    --orange: #e8a35d;
    --blue: #5d9de8;
    --mauve: #b87de8;
    --teal: #5dc4b8;
    --border: #3a3228;
    --border-light: #4a3f33;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    overflow: hidden;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    -webkit-tap-highlight-color: transparent;
    -webkit-text-size-adjust: 100%;
    touch-action: manipulation;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--bg-active);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ==================== Toolbar ==================== */
#toolbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--toolbar-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 8px;
    padding-top: var(--safe-top);
    z-index: 100;
    gap: 6px;
}

#btn-menu {
    width: 36px;
    height: 36px;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
#btn-menu:active {
    background: var(--bg-hover);
}

#file-name {
    flex: 1;
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
    font-family: var(--font-mono);
}

#toolbar-actions {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
}

#toolbar-actions button {
    width: 34px;
    height: 34px;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 16px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}
#toolbar-actions button:active {
    background: var(--bg-hover);
    transform: scale(0.92);
}
#btn-run {
    color: var(--green);
    font-weight: bold;
}
#btn-stop {
    color: var(--red);
}
#btn-chat {
    color: var(--mauve);
}


/* ==================== Sidebars ==================== */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    max-width: 85vw;
    background: var(--bg-secondary);
    z-index: 200;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition);
    will-change: transform;
}
.sidebar.left {
    left: 0;
    transform: translateX(-100%);
    border-right: 1px solid var(--border);
}
.sidebar.right {
    right: 0;
    transform: translateX(100%);
    border-left: 1px solid var(--border);
}
.sidebar.open {
    transform: translateX(0);
}

/* Sidebar Headers */
#sidebar-left-header,
#sidebar-right-header {
    height: var(--toolbar-height);
    padding: 0 12px;
    padding-top: var(--safe-top);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
#sidebar-right-header > div {
    display: flex;
    gap: 4px;
    align-items: center;
}

#sidebar-left-header h3,
#sidebar-right-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--accent);
}

#close-left, #close-right {
    width: 30px;
    height: 30px;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}
#close-left:active, #close-right:active {
    background: var(--bg-hover);
}

/* ==================== Chat Search Bar ==================== */
.chat-search-bar {
    display: flex;
    align-items: center;
    padding: 4px 8px;
    gap: 4px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.chat-search-bar.hidden {
    display: none;
}
#chat-search-input {
    flex: 1;
    min-width: 0;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
}
#chat-search-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent);
}
.chat-search-count {
    font-size: 11px;
    color: var(--text-muted);
    white-space: nowrap;
    min-width: 30px;
    text-align: center;
}
.chat-search-bar button {
    width: 26px;
    height: 26px;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.chat-search-bar button:active {
    background: var(--bg-hover);
}
.chat-search-bar button:disabled {
    color: var(--text-muted);
    opacity: 0.4;
}
/* Search highlight marks */
.chat-search-match {
    background: rgba(255, 200, 0, 0.35);
    border-radius: 2px;
    padding: 0 1px;
}
.chat-search-match.current {
    background: rgba(255, 140, 0, 0.7);
    color: #fff;
}

/* ==================== Left Tabs ==================== */
#left-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

#left-tabs .tab {
    flex: 1;
    min-width: 0;
    padding: 8px 4px;
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
    border-bottom: 2px solid transparent;
}
#left-tabs .tab:active {
    background: var(--bg-hover);
}
#left-tabs .tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* ==================== Panels ==================== */
#left-panels {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.panel {
    position: absolute;
    inset: 0;
    display: none;
    flex-direction: column;
    overflow: hidden;
}
.panel.active {
    display: flex;
}

.panel-toolbar {
    display: flex;
    gap: 4px;
    padding: 8px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    flex-wrap: wrap;
}

.panel-toolbar button {
    padding: 6px 10px;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-size: 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    white-space: nowrap;
    min-height: 32px;
    min-width: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}
.panel-toolbar button:active {
    background: var(--bg-hover);
}
#btn-set-workspace {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
#btn-set-workspace:active {
    opacity: 0.8;
}

.panel-toolbar input {
    flex: 1;
    min-width: 60px;
    padding: 6px 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-family: var(--font-mono);
}

/* Breadcrumb in file panel */
.workspace-breadcrumb {
    flex: 1;
    min-width: 60px;
    padding: 6px 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-family: var(--font-mono);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 20px;
    cursor: default;
    display: flex;
    align-items: center;
}
.workspace-breadcrumb:empty::before {
    content: '工作区路径';
    color: var(--text-muted);
}
.breadcrumb-segment {
    color: var(--text-secondary);
    cursor: pointer;
    padding: 1px 3px;
    border-radius: 3px;
    transition: background 0.15s;
}
.breadcrumb-segment:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.breadcrumb-segment.current {
    color: var(--text-primary);
    cursor: default;
    font-weight: 600;
}
.breadcrumb-segment.current:hover {
    background: none;
}
.breadcrumb-separator {
    color: var(--text-muted);
    margin: 0 1px;
    user-select: none;
}

/* ==================== File Tree ==================== */
#file-tree {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 4px 0;
}

.file-item {
    display: flex;
    align-items: center;
    padding: 7px 12px;
    cursor: pointer;
    font-size: 13px;
    transition: background 0.15s;
    gap: 6px;
    border-left: 3px solid transparent;
}
.file-item:active {
    background: var(--bg-hover);
}
.file-item.active {
    background: var(--bg-surface);
    border-left-color: var(--accent);
    color: var(--accent);
}
.file-item .icon {
    font-size: 14px;
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}
.file-item .name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: var(--font-mono);
    font-size: 12px;
}
.file-item .size {
    font-size: 11px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.file-item.directory {
    font-weight: 500;
}
.file-item .arrow {
    font-size: 10px;
    color: var(--text-muted);
    width: 16px;
    text-align: center;
    transition: transform 0.2s;
}
.file-item .arrow.open {
    transform: rotate(90deg);
}

.file-context-menu {
    position: absolute;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px;
    z-index: 300;
    min-width: 160px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.file-context-menu button {
    display: block;
    width: 100%;
    padding: 8px 12px;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 13px;
    text-align: left;
    cursor: pointer;
    border-radius: var(--radius-sm);
}
.file-context-menu button:active {
    background: var(--bg-hover);
}

.context-menu {
    position: fixed;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px;
    z-index: 400;
    min-width: 160px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.context-menu button, .context-menu .context-menu-item {
    display: block;
    width: 100%;
    padding: 10px 12px;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 13px;
    text-align: left;
    cursor: pointer;
    border-radius: var(--radius-sm);
}
.context-menu button:active, .context-menu .context-menu-item:active {
    background: var(--bg-hover);
}
.context-menu .danger {
    color: var(--red);
}

/* ==================== Git Panel ==================== */
#git-branch-info {
    padding: 8px 12px;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

#git-current-branch {
    font-family: var(--font-mono);
    color: var(--accent);
    font-weight: 600;
}

#git-status-count {
    color: var(--text-muted);
    font-size: 11px;
}

#git-changes-list {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 4px 0;
    min-height: 0;
    max-height: 45%;
}

.git-change-item {
    display: flex;
    flex-direction: column;
    padding: 6px 12px;
    font-size: 12px;
    gap: 4px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
}
.git-change-item:active {
    background: var(--bg-hover);
}
.git-change-row {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}
.git-change-icon {
    flex-shrink: 0;
    font-size: 14px;
}
.git-change-path {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
}
.git-change-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    padding-left: 22px;
    flex-shrink: 0;
}
.git-action-btn {
    padding: 2px 6px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    line-height: 1.2;
    transition: background 0.15s;
}
.git-action-btn:active {
    background: var(--bg-active);
    transform: scale(0.92);
}
.git-action-btn.git-action-danger:active {
    background: rgba(232, 93, 93, 0.2);
    color: var(--red);
}
.git-change-item .git-status-badge {
    font-size: 10px;
    font-weight: bold;
    padding: 1px 4px;
    border-radius: 2px;
    font-family: var(--font-mono);
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}
.git-change-item .git-status-badge.staged {
    background: var(--green);
    color: var(--bg-primary);
}
.git-change-item .git-status-badge.modified {
    background: var(--yellow);
    color: var(--bg-primary);
}
.git-change-item .git-status-badge.untracked {
    background: var(--text-muted);
    color: var(--bg-primary);
}
.git-change-item .git-file-path {
    flex: 1;
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

#git-commit-area {
    padding: 8px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

#git-commit-msg {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-family: var(--font-mono);
    resize: none;
}

#git-commit-btn {
    width: 100%;
    margin-top: 6px;
    padding: 8px;
    border: none;
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
}
#git-commit-btn:active {
    background: var(--accent-hover);
}

#git-log-list {
    max-height: 200px;
    overflow-y: auto;
    padding: 4px 0;
    overscroll-behavior-y: contain;
}

.git-log-loader {
    padding: 8px 12px;
    text-align: center;
    font-size: 11px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
}

.git-log-item {
    padding: 6px 12px;
    font-size: 11px;
    border-bottom: 1px solid var(--border);
}
.git-log-item .git-hash {
    font-family: var(--font-mono);
    color: var(--accent);
    font-weight: 600;
}
.git-log-item .git-msg {
    color: var(--text-secondary);
    margin-top: 2px;
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Git log item layout with checkout button */
.git-log-header {
    display: flex;
    align-items: center;
    gap: 6px;
}
.git-log-hash {
    font-family: var(--font-mono);
    color: var(--accent);
    font-weight: 600;
    font-size: 11px;
    flex-shrink: 0;
}
.git-log-author {
    color: var(--text-muted);
    font-size: 10px;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.git-log-checkout-btn {
    width: 26px;
    height: 22px;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    border-radius: 4px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.git-log-checkout-btn:hover,
.git-log-checkout-btn:active {
    background: var(--bg-hover);
    color: var(--accent);
}
.git-log-message {
    color: var(--text-secondary);
    margin-top: 2px;
    font-family: var(--font-mono);
    font-size: 11px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.git-log-date {
    color: var(--text-muted);
    font-size: 9px;
    margin-top: 1px;
    font-family: var(--font-mono);
}

/* Expand/collapse arrow for commit items */
.git-log-expand-icon {
    font-size: 10px;
    color: var(--text-muted);
    cursor: pointer;
    flex-shrink: 0;
    width: 14px;
    text-align: center;
    transition: transform 0.15s ease;
    user-select: none;
    -webkit-user-select: none;
}
.git-log-expand-icon:hover {
    color: var(--accent);
}

/* Container for the expanded file list under a commit */
.git-log-files {
    padding: 4px 0 4px 20px;
    border-top: 1px solid var(--border);
    margin-top: 4px;
}
.git-log-files-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.git-log-file-item {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 6px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    font-family: var(--font-mono);
    transition: background 0.12s;
}
.git-log-file-item:hover {
    background: var(--bg-hover);
}
.git-log-file-icon {
    font-size: 11px;
    flex-shrink: 0;
    width: 16px;
    text-align: center;
}
.git-log-file-path {
    flex: 1;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 10px;
}
.git-log-file-stat {
    color: var(--text-muted);
    font-size: 9px;
    flex-shrink: 0;
    font-family: var(--font-mono);
    white-space: nowrap;
}
.git-log-file-stat.binary {
    color: #e67e22;
    font-style: italic;
}
.git-log-file-diff-btn {
    width: 22px;
    height: 20px;
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 11px;
    cursor: pointer;
    border-radius: 3px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.git-log-file-diff-btn:hover,
.git-log-file-diff-btn:active {
    background: var(--bg-hover);
    color: var(--accent);
}

/* ==================== Search Panel ==================== */
.search-box {
    display: flex;
    gap: 4px;
    padding: 8px;
    border-bottom: 1px solid var(--border);
}

.search-box input {
    flex: 1;
    padding: 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: var(--font-mono);
}

.search-box button {
    padding: 8px 12px;
    border: none;
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
}

.search-options {
    display: flex;
    gap: 8px;
    padding: 6px 12px;
    font-size: 11px;
    align-items: center;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border);
}

.search-options label {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
}

.search-options input[type="checkbox"] {
    accent-color: var(--accent);
}

.search-options input[type="text"] {
    flex: 1;
    min-width: 80px;
    padding: 4px 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-family: var(--font-mono);
}

#search-results {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 4px 0;
}

.search-result-item {
    padding: 6px 12px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}
.search-result-item:active {
    background: var(--bg-hover);
}
.search-result-file {
    font-size: 11px;
    color: var(--accent);
    font-family: var(--font-mono);
    font-weight: 600;
}
.search-result-line {
    font-size: 11px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}
.search-result-text {
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
}
.search-result-text mark {
    background: var(--yellow);
    color: var(--bg-primary);
    padding: 0 2px;
    border-radius: 2px;
}

.search-summary {
    padding: 8px 12px;
    font-size: 12px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

/* ==================== Debug Panel ==================== */
#debug-config {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-shrink: 0;
}

#debug-config select {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 12px;
}

#venv-info {
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

#current-venv {
    font-family: var(--font-mono);
    color: var(--green);
}

#debug-config button {
    padding: 8px;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
}
#debug-config button:active {
    background: var(--bg-hover);
}

#debug-breakpoints {
    overflow-y: auto;
    padding: 4px 0;
    min-height: 0;
    /* Only take space if it has content; otherwise collapses */
    flex-shrink: 1;
}

#venv-packages {
    display: none;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

#venv-packages > #venv-progress-area,
#venv-packages > #venv-pkg-label {
    flex-shrink: 0;
}

#venv-pkg-list {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 0 4px;
    font-size: 11px;
    font-family: var(--font-mono);
}

/* ==================== Editor Tabs ==================== */
.editor-tabs-bar {
    display: flex;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
    overflow-y: hidden;
    flex-shrink: 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    position: fixed;
    top: var(--toolbar-height);
    left: 0;
    right: 0;
    height: 34px;
    z-index: 99;
}
.editor-tabs-bar::-webkit-scrollbar {
    height: 0;
}
.editor-tab {
    display: flex;
    align-items: center;
    padding: 0 12px;
    height: 34px;
    min-width: 0;
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-right: 2px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    max-width: 140px;
    gap: 4px;
}
.editor-tab:hover {
    background: var(--bg-hover);
}
.editor-tab.active {
    color: var(--text-primary);
    background: var(--bg-primary);
    border-right-color: var(--accent);
}
.editor-tab .tab-close {
    width: 16px;
    height: 16px;
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 14px;
    cursor: pointer;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    opacity: 0.6;
}
.editor-tab:hover .tab-close {
    opacity: 1;
    color: var(--red);
}
.editor-tab .tab-name {
    overflow: hidden;
    text-overflow: ellipsis;
}
.editor-tab .tab-modified {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
}

/* ==================== Main Area ==================== */
#main-area {
    position: fixed;
    top: calc(var(--toolbar-height) + 34px);
    left: 0;
    right: 0;
    bottom: var(--footer-height);
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    padding-top: var(--safe-top);
    padding-bottom: var(--safe-bottom);
}

/* Editor Toolbar */
#editor-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    min-height: 32px;
}

#editor-toolbar input {
    flex: 1;
    padding: 4px 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-family: var(--font-mono);
}

#editor-toolbar button {
    width: 28px;
    height: 28px;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}
#editor-toolbar button:active {
    background: var(--bg-hover);
}

#btn-md-tts.active {
    color: var(--accent-color);
}

/* CodeMirror Overrides */
#editor-container {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.CodeMirror {
    height: 100% !important;
    font-family: var(--font-mono) !important;
    font-size: 8px !important;
    line-height: 1.5 !important;
    background: var(--bg-primary) !important;
    -webkit-user-select: text !important;
    user-select: text !important;
    -webkit-touch-callout: default !important;
}

/* Ensure all CodeMirror child elements allow text selection */
.CodeMirror *,
.CodeMirror-code,
.CodeMirror-line,
.CodeMirror-line span,
.CodeMirror-gutter-elt,
.CodeMirror-linenumber {
    -webkit-user-select: text !important;
    user-select: text !important;
    -webkit-touch-callout: default !important;
}

.CodeMirror-scroll {
    background: var(--bg-primary) !important;
}

.CodeMirror-gutters {
    background: var(--bg-secondary) !important;
    border-right: 1px solid var(--border) !important;
    min-width: 22px !important;
}

.CodeMirror-gutter {
    background: var(--bg-secondary) !important;
}

.CodeMirror-gutter-wrapper {
    background: var(--bg-secondary) !important;
}

.CodeMirror-gutter-elt {
    background: var(--bg-secondary) !important;
}

.CodeMirror-linenumber {
    color: var(--text-muted) !important;
    font-size: 7px !important;
    padding: 0 2px 0 4px !important;
    min-width: 18px !important;
    width: 18px !important;
}

.CodeMirror-activeline-background {
    background: rgba(58, 50, 40, 0.3) !important;
}

.CodeMirror-cursor {
    border-left: 1px solid var(--accent) !important;
}

.CodeMirror-selected {
    background: rgba(232, 133, 61, 0.2) !important;
}

.CodeMirror-focused .CodeMirror-selected {
    background: rgba(232, 133, 61, 0.3) !important;
}

.CodeMirror-matchingbracket {
    color: var(--green) !important;
    background: rgba(107, 201, 107, 0.2) !important;
    border-bottom: 1px solid var(--green) !important;
}

/* Dialog addon override */
.CodeMirror-dialog {
    background: var(--bg-surface) !important;
    color: var(--text-primary) !important;
    border-bottom: 1px solid var(--border) !important;
    padding: 4px 8px !important;
    font-size: 12px !important;
}

.CodeMirror-dialog input {
    background: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border) !important;
    padding: 2px 6px !important;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono) !important;
}

/* Search match highlighting */
.CodeMirror-searching {
    background: rgba(255, 213, 0, 0.4) !important;
}
.CodeMirror-searching.match {
    background: rgba(255, 150, 0, 0.5) !important;
}

/* Breakpoint gutter marker styles */
.CodeMirror-gutter-elt {
    cursor: pointer;
}

/* Breakpoint red dot */
.CodeMirror-breakpoint-marker {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff5555;
    margin: 2px auto;
    cursor: pointer;
    box-shadow: 0 0 4px rgba(255, 85, 85, 0.5);
    transition: transform 0.15s ease;
}

/* Debug current line highlight */
.debug-current-line {
    background: rgba(249, 226, 175, 0.35) !important;
    border-left: 3px solid var(--yellow) !important;
    outline: 1px solid rgba(249, 226, 175, 0.2);
}

/* Multi-Select Styles */
.CodeMirror-multi-select-cursor {
    border-left: 2px solid #ff6b6b !important;
    opacity: 0.7 !important;
}

.CodeMirror-multi-select-active {
    border-left: 2px solid var(--accent) !important;
    opacity: 1.0 !important;
}

.multi-select-notification {
    animation: slideIn 0.3s ease-out;
}

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

/* Multi-select cursor indicators in status bar */
.editor-status-bar .multi-select-indicator {
    color: #ff6b6b;
    font-weight: bold;
}

.editor-status-bar {
    display: flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 10px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
    gap: 4px;
    min-height: 18px;
}

/* Debug var/stack/bp rows */
.debug-var-row,
.debug-stack-row,
.debug-bp-row,
.debug-ai-row {
    display: flex;
    align-items: center;
    padding: 3px 8px;
    font-size: 11px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    gap: 6px;
}
.debug-var-row:hover,
.debug-stack-row:hover,
.debug-bp-row:hover {
    background: var(--bg-hover);
}
.var-name,
.stack-func,
.bp-file,
.ai-tool {
    color: var(--accent);
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex-shrink: 1;
    min-width: 0;
}
.var-value,
.stack-loc,
.bp-line,
.ai-time {
    color: var(--text-muted);
    font-family: var(--font-mono);
    white-space: nowrap;
    flex-shrink: 0;
}
.bp-remove {
    color: var(--red);
    cursor: pointer;
    font-size: 12px;
    padding: 0 4px;
    flex-shrink: 0;
}
.bp-remove:hover {
    background: rgba(232, 93, 93, 0.2);
    border-radius: 2px;
}
.debug-stack-row.current {
    background: rgba(232, 133, 61, 0.1);
    border-left: 2px solid var(--accent);
}
.debug-empty {
    color: var(--text-muted);
    font-size: 11px;
    padding: 8px 12px;
    text-align: center;
    font-style: italic;
}

/* ==================== Bottom Panel (Output) ==================== */
#bottom-panel {
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    transition: height 0.15s ease;
    height: var(--bottom-panel-height);
    flex-shrink: 0;
}
#bottom-panel.hidden {
    height: 0;
    min-height: 0;
    overflow: hidden;
}
/* Disable height transition during drag for smooth resizing */
body.panel-resizing #bottom-panel {
    transition: none !important;
}
body.panel-resizing,
body.panel-resizing * {
    user-select: none !important;
    -webkit-user-select: none !important;
}
/* When keyboard is open, bottom-panel lifts up */
#bottom-panel.keyboard-open {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 150;
    transition: none;
}
/* Hide copyright footer when keyboard is open to prevent overlap with shell input */
body.keyboard-open #copyright-footer {
    display: none !important;
}

#bottom-panel-header {
    display: flex;
    align-items: center;
    padding: 4px 4px;
    border-bottom: 1px solid var(--border);
    gap: 0;
    flex-shrink: 0;
}

#bottom-panel-header span {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 600;
    flex: 1;
}

#bottom-panel-header button {
    padding: 2px 8px;
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    border-radius: var(--radius-sm);
}
#bottom-panel-header button:active {
    background: var(--bg-hover);
}
/* Clear (🗑) and Close (✕) buttons must always be visible */
#bottom-panel-clear,
#bottom-panel-close {
    flex-shrink: 0;
    padding: 2px 6px;
    font-size: 14px;
    line-height: 1;
}

#output-content {
    flex: 1;
    min-height: 0;                   /* Critical: allow shrinking below content size for scroll */
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 8px;
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-all;
    overscroll-behavior-y: contain;  /* Prevent pull-to-refresh on mobile */
    touch-action: pan-y;             /* Allow vertical scroll, prevent browser gestures */
}

/* ==================== Shell Input Bar ==================== */
#shell-input-bar {
    display: flex;
    align-items: center;
    gap: 0;
    padding: 6px 8px;
    padding-bottom: calc(6px + var(--safe-bottom));
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}

#shell-prompt {
    color: var(--green);
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: bold;
    padding: 0 6px 0 4px;
    flex-shrink: 0;
    user-select: none;
}

#shell-input {
    flex: 1;
    min-width: 0;
    padding: 8px 10px;
    border: 1px solid var(--border);
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.4;
    outline: none;
    -webkit-appearance: none;
}
#shell-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(232, 133, 61, 0.2);
}
#shell-input::placeholder {
    color: var(--text-muted);
    font-size: 13px;
}

.output-line {
    padding: 2px 0;
    border-bottom: 1px solid rgba(49, 50, 68, 0.3);
    user-select: text;
    -webkit-user-select: text;
}
.output-line:last-child {
    border-bottom: none;
}

/* Command block wrapper */
.cmd-block {
    position: relative;
    border-left: 3px solid var(--surface0);
    padding-left: 4px;
    margin-bottom: 4px;
}
.cmd-block-actions {
    display: flex;
    justify-content: flex-end;
    padding: 4px 0 2px;
}
.cmd-forward-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 3px 10px;
    border-radius: var(--radius);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s;
}
.cmd-forward-btn:hover {
    background: var(--mauve);
    color: var(--bg-primary);
    border-color: var(--mauve);
}
.cmd-forward-btn:active {
    transform: scale(0.96);
}
.output-line.stdout {
    color: var(--text-primary);
}
.output-line.stderr {
    color: var(--red);
    font-style: italic;
}
.output-line.error {
    color: var(--red);
    font-weight: 600;
    text-decoration: underline wavy var(--red);
    text-underline-offset: 2px;
}
.output-line.status {
    color: var(--text-muted);
    font-style: italic;
}
.output-line.info {
    color: var(--blue);
}
.output-line.success {
    color: var(--green);
}
.output-line.system {
    color: var(--mauve);
    font-weight: 600;
}
.output-line .log-time {
    color: var(--text-muted);
    font-size: 10px;
    margin-right: 6px;
}
.output-line .log-prefix {
    color: var(--accent);
    font-weight: bold;
    margin-right: 4px;
}

/* Bottom panel tab panels */
#bottom-panels {
    position: relative;
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 0;  /* allow flex children to shrink below content size */
}
.bpanel {
    display: none;
    position: absolute;
    inset: 0;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
    z-index: 0;
    visibility: hidden;
}
.bpanel.active {
    display: flex;
    z-index: 1;
    visibility: visible;
}

/* Output panel: allow shell input bar at bottom */
#bpanel-output {
    overflow: hidden;
}

/* Bottom panel copy button — fixed at bottom-left */
.output-copy-btn {
    position: absolute;
    bottom: 0;
    left: 0;
    z-index: 10;
    padding: 3px 10px;
    font-size: 11px;
    color: var(--text-muted);
    background: var(--bg-tertiary, rgba(30,30,46,0.85));
    border: 1px solid var(--border);
    border-bottom: none;
    border-left: none;
    border-radius: 0 6px 0 0;
    cursor: pointer;
    backdrop-filter: blur(4px);
    transition: opacity 0.2s;
    user-select: none;
}
.output-copy-btn:hover {
    color: var(--text-primary);
    background: var(--bg-surface, rgba(49,50,68,0.95));
}
.output-copy-btn.copied {
    color: var(--green, #50fa7b);
}

/* Browser preview panel: ensure iframe doesn't leak out */
#bpanel-browser {
    z-index: 0;
}
#bpanel-browser.active {
    z-index: 1;
}
#preview-frame {
    border: none !important;
    background: #fff;
    width: 100%;
    min-height: 0;
    pointer-events: none;
}
#bpanel-browser.active #preview-frame {
    pointer-events: auto;
}

#bottom-panel-resize {
    height: 14px;
    cursor: ns-resize;
    background: var(--bg-tertiary);
    flex-shrink: 0;
    position: relative;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s ease, border-color 0.15s ease;
}
#bottom-panel-resize::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 4px;
    background: var(--text-muted);
    opacity: 0.3;
    border-radius: 2px;
    transition: opacity 0.15s ease, width 0.15s ease;
}
#bottom-panel-resize:hover {
    background: var(--bg-primary);
    border-bottom-color: var(--accent);
}
#bottom-panel-resize:hover::after,
#bottom-panel-resize.active::after {
    opacity: 0.6;
    width: 60px;
    background: var(--accent);
}

/* ==================== Terminal Extra Keys (removed) ==================== */

/* ==================== Chat Panel ==================== */
#chat-messages {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chat-msg {
    padding: 8px 10px;
    border-radius: var(--radius);
    font-size: 13px;
    line-height: 1.5;
    max-width: 95%;
    word-break: break-word;
}

.chat-msg.user {
    align-self: flex-end;
    background: var(--accent);
    color: var(--bg-primary);
    border-bottom-right-radius: 2px;
}

.chat-msg.assistant {
    align-self: flex-start;
    background: var(--bg-surface);
    color: var(--text-primary);
    border-bottom-left-radius: 2px;
}

.chat-msg.tool {
    align-self: flex-start;
    background: rgba(203, 166, 247, 0.15);
    border: 1px solid rgba(203, 166, 247, 0.3);
    color: var(--text-secondary);
    font-size: 12px;
}

.chat-msg.error {
    align-self: flex-start;
    background: rgba(232, 93, 93, 0.15);
    border: 1px solid rgba(232, 93, 93, 0.3);
    color: var(--red);
    font-size: 12px;
}

.chat-msg.warning {
    align-self: flex-start;
    background: rgba(232, 180, 30, 0.12);
    border: 1px solid rgba(232, 180, 30, 0.3);
    color: #c8a000;
    font-size: 12px;
}

.chat-msg.system.alarm-msg {
    align-self: center;
    background: linear-gradient(135deg, rgba(251, 146, 60, 0.15), rgba(245, 158, 11, 0.10));
    border: 1px solid rgba(251, 146, 60, 0.4);
    color: var(--text-primary);
    font-size: 13px;
    padding: 10px 16px;
    border-radius: 12px;
    text-align: center;
    max-width: 85%;
}

.chat-msg .chat-time {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
}
.chat-msg.user .chat-time {
    color: rgba(0,0,0,0.5);
}

/* Deleted user messages */
.chat-msg.user.deleted {
    opacity: 0.5;
    background: var(--bg-surface);
    color: var(--text-secondary);
    border: 1px dashed var(--border);
}
[data-theme="claude"] .chat-msg.user.deleted {
    background: rgba(0,0,0,0.05);
    color: var(--text-secondary);
}
.chat-msg.user.deleted .chat-time {
    color: var(--text-tertiary);
}

.chat-msg pre {
    background: var(--bg-tertiary);
    padding: 8px;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 12px;
    margin: 6px 0;
    white-space: pre-wrap;
    word-break: break-all;
}

.chat-msg code {
    font-family: var(--font-mono);
    background: var(--bg-tertiary);
    padding: 1px 4px;
    border-radius: 2px;
    font-size: 12px;
}

.chat-msg .tool-name {
    color: var(--mauve);
    font-weight: 600;
    font-size: 11px;
}

.chat-msg .tool-result {
    margin-top: 4px;
    font-family: var(--font-mono);
    font-size: 11px;
    white-space: pre-wrap;
    max-height: 200px;
    overflow-y: auto;
}

.chat-typing {
    align-self: flex-start;
    padding: 8px 12px;
    background: var(--bg-surface);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 13px;
}
.chat-typing::after {
    content: '...';
    animation: typing 1s infinite;
}

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

#chat-input-area {
    padding: 8px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    padding-bottom: calc(8px + var(--safe-bottom));
}

#chat-execute-status {
    font-size: 11px;
    color: var(--teal);
    margin-bottom: 4px;
    min-height: 16px;
}

.chat-api-status-bar {
    font-size: 11px;
    font-family: var(--font-mono);
    padding: 3px 8px;
    margin-bottom: 4px;
    border-radius: var(--radius-sm);
    line-height: 1.4;
}
.chat-api-status-bar.chat-api-has-retries {
    color: #e8b41e;
    background: rgba(232, 180, 30, 0.08);
    border: 1px solid rgba(232, 180, 30, 0.25);
}
.chat-api-status-bar.chat-api-has-errors {
    color: var(--red);
    background: rgba(232, 93, 93, 0.08);
    border: 1px solid rgba(232, 93, 93, 0.25);
}

/* ── Pending Queue Display ── */
#chat-pending-queue {
    display: none;
    margin-bottom: 4px;
    background: rgba(255, 149, 0, 0.08);
    border: 1px solid rgba(255, 149, 0, 0.25);
    border-radius: var(--radius);
    overflow: hidden;
    max-height: 180px;
}

.pending-queue-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 10px;
    background: rgba(255, 149, 0, 0.12);
    border-bottom: 1px solid rgba(255, 149, 0, 0.15);
}

.pending-queue-title {
    font-size: 12px;
    font-weight: 600;
    color: #ff9500;
}

.pending-queue-clear {
    font-size: 11px;
    padding: 2px 8px;
    border: 1px solid rgba(255, 149, 0, 0.3);
    background: transparent;
    color: #ff9500;
    border-radius: 4px;
    cursor: pointer;
}

.pending-queue-clear:hover {
    background: rgba(255, 149, 0, 0.15);
}

.pending-queue-list {
    max-height: 140px;
    overflow-y: auto;
}

.pending-queue-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    font-size: 12px;
    border-bottom: 1px solid rgba(255, 149, 0, 0.08);
}

.pending-queue-item:last-child {
    border-bottom: none;
}

.pending-queue-num {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 149, 0, 0.2);
    border-radius: 50%;
    font-size: 10px;
    font-weight: 700;
    color: #ff9500;
}

.pending-queue-text {
    flex: 1;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pending-queue-del {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    border-radius: 3px;
    padding: 0;
    line-height: 1;
}

.pending-queue-del:hover {
    background: rgba(255, 59, 48, 0.15);
    color: #ff3b30;
}

#chat-input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius);
    font-size: 13px;
    font-family: var(--font-mono);
    resize: none;
    line-height: 1.4;
}

#chat-input:focus {
    border-color: var(--accent);
    outline: none;
}

#chat-send {
    flex: 1;
    padding: 10px;
    border: none;
    background: var(--mauve);
    color: var(--bg-primary);
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 14px;
}

.chat-send-row {
    display: flex;
    gap: 6px;
    margin-top: 6px;
    align-items: center;
}

#chat-model-select {
    width: auto;
    min-width: 100px;
    max-width: 40%;
    padding: 10px 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius);
    font-size: 12px;
    font-family: var(--font-mono);
    appearance: auto;
    flex-shrink: 1;
}
#chat-send:active {
    background: var(--accent);
    transform: scale(0.98);
}
#chat-send:disabled {
    opacity: 0.5;
}

/* Queue Button (shown next to send during processing) */
.chat-queue-btn {
    padding: 8px 12px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 12px;
    white-space: nowrap;
    flex-shrink: 0;
    transition: background 0.15s;
}
.chat-queue-btn:active {
    background: var(--bg-hover);
    transform: scale(0.98);
}

/* Context Progress Ring */
.ctx-progress-ring {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    cursor: default;
    position: relative;
}
.ctx-progress-ring svg {
    display: block;
    width: 100%;
    height: 100%;
}
.ctx-ring-bg {
    stroke: rgba(255, 255, 255, 0.15);
}
.ctx-ring-fill {
    stroke: white;
    transition: stroke-dashoffset 0.3s ease, stroke 0.3s ease;
}
.ctx-progress-ring .ctx-pct {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8px;
    color: var(--text-secondary);
    pointer-events: none;
    font-family: var(--font-mono);
}

/* ==================== Overlay ==================== */
#overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 150;
    transition: opacity var(--transition);
}
#overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

/* ==================== Dialog ==================== */
#dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
#dialog-overlay.hidden {
    display: none;
}

#dialog {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 400px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.5);
}

#dialog-title {
    padding: 14px 16px 8px;
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
}

#dialog-body {
    padding: 8px 16px 14px;
    font-size: 13px;
    color: var(--text-secondary);
}

#dialog-body input {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: var(--font-mono);
    margin-top: 8px;
}
#dialog-body input:focus {
    border-color: var(--accent);
    outline: none;
}

#dialog-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 8px 16px 14px;
}

#dialog-buttons button {
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
}
#dialog-buttons .btn-cancel {
    background: var(--bg-hover);
    color: var(--text-secondary);
}
#dialog-buttons .btn-confirm {
    background: var(--accent);
    color: var(--bg-primary);
}

/* ==================== Toast ==================== */
#toast {
    position: fixed;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--bg-surface);
    color: var(--text-primary);
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 13px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
    z-index: 600;
    opacity: 0;
    transition: all 0.3s;
    text-align: center;
    max-width: 80vw;
    border: 1px solid var(--border);
}
#toast.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateX(-50%) translateY(20px);
}
#toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}
#toast.success {
    border-color: var(--green);
}
#toast.error {
    border-color: var(--red);
}

/* ==================== Loading ==================== */
.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ==================== Empty State ==================== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    font-size: 13px;
    padding: 20px;
    text-align: center;
}
.empty-state .emoji {
    font-size: 40px;
    margin-bottom: 12px;
}

/* Venv install progress bar animation */
@keyframes venv-progress-indeterminate {
    0% { width: 15%; margin-left: 0; }
    50% { width: 50%; margin-left: 30%; }
    100% { width: 15%; margin-left: 85%; }
}

/* ==================== Responsive ==================== */
@media (min-width: 768px) {
    :root {
        --sidebar-width: 400px;
    }
    #main-area {
        left: 0;
    }
    .sidebar.open ~ #main-area {
        /* Optional: push content on desktop */
    }
}

@media (min-width: 1024px) {
    .sidebar.left.open ~ #main-area,
    .sidebar.right.open ~ #main-area {
        /* Keep overlay mode even on large screens for simplicity */
    }
}

/* ==================== Touch Improvements ==================== */
button, .file-item, .search-result-item, .git-change-item {
    -webkit-tap-highlight-color: transparent;
}

/* Prevent zoom on input focus (iOS) */
@media screen and (-webkit-min-device-pixel-ratio: 0) {
    input, textarea, select {
        font-size: 16px !important;
    }
    #output-content, .chat-msg, .file-item .name, .git-file-path,
    .search-result-text, .git-log-item .git-msg,
    .CodeMirror, .CodeMirror-linenumber {
        font-size: revert !important;
    }
    /* Shell input: keep 16px to prevent iOS zoom, but look compact */
    #shell-input {
        font-size: 16px !important;
        padding: 6px 10px !important;
    }
}

/* Landscape mode adjustments */
@media (orientation: landscape) and (max-height: 500px) {
    :root {
        --toolbar-height: 38px;
        --bottom-panel-height: 85vh;  /* fallback */
    }
    .editor-tabs-bar {
        height: 28px;
        top: var(--toolbar-height);
    }
    #main-area {
        top: calc(var(--toolbar-height) + 28px);
    }
    .editor-tab {
        height: 28px;
        font-size: 11px;
        padding: 0 8px;
    }
    #chat-input-area {
        padding: 4px 8px;
        padding-bottom: calc(4px + var(--safe-bottom));
    }
}

/* Prevent text selection during drag */
.no-select {
    -webkit-user-select: none;
    user-select: none;
}

/* ==================== Debugger Panel ==================== */

/* Debug status badges */
.debug-status-idle { color: var(--text-muted); background: var(--bg-surface); }
.debug-status-running { color: var(--bg-primary); background: var(--green); }
.debug-status-paused { color: var(--bg-primary); background: var(--yellow); animation: pulse-pause 1.5s infinite; }
.debug-status-stopped { color: var(--bg-primary); background: var(--red); }

@keyframes pulse-pause {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Current line highlight in editor */
.debug-current-line {
    background: rgba(249, 226, 175, 0.35) !important;
    border-left: 3px solid var(--yellow) !important;
    outline: 1px solid rgba(249, 226, 175, 0.2);
}

/* Breakpoint line highlight */
.debug-breakpoint-line {
    background: rgba(232, 93, 93, 0.1) !important;
}

/* Breakpoint gutter */
.CodeMirror-gutters .breakpoints {
    width: 18px;
}
.CodeMirror-gutter-elt .breakpoints {
    /* ensure marker divs are centered */
}

/* Process table */
#process-table td {
    padding: 4px 8px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    vertical-align: middle;
}
#process-table td button {
    padding: 2px 8px;
    border: 1px solid var(--red);
    background: transparent;
    color: var(--red);
    border-radius: var(--radius-sm);
    font-size: 10px;
    cursor: pointer;
    transition: background 0.15s;
}
#process-table td button:active {
    background: var(--red);
    color: var(--bg-primary);
}
.proc-running { color: var(--green); font-weight: 600; }
.proc-stopped { color: var(--text-muted); }

/* Debug variable rows */
.debug-var-row {
    display: flex;
    padding: 3px 8px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s;
}
.debug-var-row:active { background: var(--bg-hover); }
.var-name { color: var(--mauve); font-weight: 600; flex-shrink: 0; width: 30%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.var-value { color: var(--text-secondary); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Call stack rows */
.debug-stack-row {
    display: flex;
    padding: 3px 8px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s;
}
.debug-stack-row:active { background: var(--bg-hover); }
.debug-stack-row.current { background: rgba(232, 133, 61, 0.1); }
.stack-func { color: var(--green); font-weight: 600; flex-shrink: 0; }
.stack-loc { color: var(--text-muted); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; margin-left: 8px; }

/* Breakpoint list rows */
.debug-bp-row {
    display: flex;
    padding: 3px 8px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    align-items: center;
    transition: background 0.15s;
}
.debug-bp-row:active { background: var(--bg-hover); }
.bp-file { color: var(--accent); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bp-line { color: var(--red); font-weight: 600; flex-shrink: 0; margin-left: 6px; }
.bp-remove { color: var(--text-muted); flex-shrink: 0; margin-left: 4px; font-size: 10px; padding: 0 4px; cursor: pointer; border-radius: 2px; }
.bp-remove:hover { color: var(--red); background: rgba(232, 93, 93, 0.2); }

/* Debug empty state */
.debug-empty { color: var(--text-muted); text-align: center; padding: 12px; font-size: 11px; }

/* Debug output lines */
.debug-output-line { padding: 1px 0; color: var(--text-primary); }

/* Evaluate input */
#debug-eval-input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(232, 133, 61, 0.2); }
.debug-eval-line { padding: 2px 0; font-family: var(--font-mono); font-size: 11px; }
.eval-prompt { color: var(--green); font-weight: bold; margin-right: 6px; }
.eval-result { color: var(--teal); }
.eval-error { color: var(--red); font-style: italic; }

/* AI debug activity log */
.debug-ai-row { display: flex; padding: 2px 8px; border-bottom: 1px solid var(--border); font-size: 11px; }
.ai-time { color: var(--text-muted); flex-shrink: 0; font-size: 10px; }
.ai-tool { color: var(--mauve); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ==================== Theme: Claude (Warm Cream) ==================== */
#project-title {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 6px;
}
#project-title.hidden {
    display: none;
}

#project-folder-picker {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

#project-folder-picker.hidden {
    display: none;
}

#project-picker-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    flex-shrink: 0;
}

#project-picker-header button {
    width: 30px;
    height: 30px;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-size: 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

#project-picker-select {
    width: auto !important;
    padding: 4px 10px !important;
    font-size: 12px !important;
    background: var(--accent) !important;
    color: var(--bg-primary) !important;
    border-color: var(--accent) !important;
    font-weight: 600;
    white-space: nowrap;
}
#project-picker-select:active {
    filter: brightness(0.9);
}

.project-folder-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    font-size: 13px;
    transition: background 0.15s;
    gap: 8px;
    border-left: 3px solid transparent;
}
.project-folder-item:active {
    background: var(--bg-hover);
}
.project-folder-info {
    display: flex;
    align-items: center;
    flex: 1;
    gap: 8px;
    cursor: pointer;
    min-width: 0;
}
.project-folder-info:active {
    opacity: 0.7;
}
.project-folder-info .icon {
    font-size: 16px;
    flex-shrink: 0;
}
.project-folder-info .name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-family: var(--font-mono);
    font-size: 12px;
}
.project-folder-info .git-badge {
    font-size: 12px;
    color: var(--text-muted);
    flex-shrink: 0;
}
.project-folder-set-btn {
    flex-shrink: 0;
    padding: 4px 10px;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: var(--bg-primary);
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    white-space: nowrap;
    transition: filter 0.15s, transform 0.1s;
}
.project-folder-set-btn:active {
    filter: brightness(0.85);
    transform: scale(0.95);
}

/* Workspace picker "设为工作目录" button — same style as project picker set button */
.ws-folder-set-btn {
    flex-shrink: 0;
    padding: 4px 10px;
    border: 1px solid var(--blue);
    background: var(--blue);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    white-space: nowrap;
    transition: filter 0.15s, transform 0.1s;
}
.ws-folder-set-btn:active {
    filter: brightness(0.85);
    transform: scale(0.95);
}

.project-no-project, .project-active {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

[data-theme="claude"] {
    --bg-primary: #FAF9F6;
    --bg-secondary: #F5F0E8;
    --bg-tertiary: #EDE8DB;
    --bg-surface: #FFFFFF;
    --bg-hover: #E8E2D6;
    --bg-active: #D4C5B0;
    --text-primary: #2D2319;
    --text-secondary: #5C4A3A;
    --text-muted: #8B7355;
    --accent: #C4621A;
    --accent-hover: #A8510F;
    --green: #2D7D46;
    --red: #C0392B;
    --yellow: #B8860B;
    --orange: #D97706;
    --blue: #2563EB;
    --mauve: #7C3AED;
    --teal: #0D9488;
    --border: #D4C5B0;
    --border-light: #C4B5A0;
}

[data-theme="claude"] .cm-s-dracula.CodeMirror,
[data-theme="claude"] .CodeMirror {
    background: #FAF9F6 !important;
    color: #2D2319 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-gutters,
[data-theme="claude"] .CodeMirror-gutters {
    background: #F5F0E8 !important;
    border-right: 1px solid #D4C5B0 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-gutter,
[data-theme="claude"] .CodeMirror-gutter {
    background: #F5F0E8 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-linenumber,
[data-theme="claude"] .CodeMirror-linenumber {
    color: #8B7355 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-activeline-background,
[data-theme="claude"] .CodeMirror-activeline-background {
    background: rgba(212, 197, 176, 0.35) !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-cursor,
[data-theme="claude"] .CodeMirror-cursor {
    border-left-color: #C4621A !important;
}
[data-theme="claude"] .cm-s-dracula div.CodeMirror-selected,
[data-theme="claude"] .CodeMirror-selected {
    background: rgba(196, 98, 26, 0.15) !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-matchingbracket,
[data-theme="claude"] .CodeMirror-matchingbracket {
    color: #2D7D46 !important;
    background: rgba(45, 125, 70, 0.15) !important;
    border-bottom-color: #2D7D46 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-dialog,
[data-theme="claude"] .CodeMirror-dialog {
    background: #FFFFFF !important;
    color: #2D2319 !important;
    border-bottom-color: #D4C5B0 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-dialog input,
[data-theme="claude"] .CodeMirror-dialog input {
    background: #FAF9F6 !important;
    color: #2D2319 !important;
    border-color: #D4C5B0 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-scroll,
[data-theme="claude"] .CodeMirror-scroll {
    background: #FAF9F6 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-gutter-wrapper,
[data-theme="claude"] .CodeMirror-gutter-wrapper {
    background: #F5F0E8 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-gutter-elt,
[data-theme="claude"] .CodeMirror-gutter-elt {
    background: #F5F0E8 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-foldgutter,
[data-theme="claude"] .CodeMirror-foldgutter {
    background: #F5F0E8 !important;
}
[data-theme="claude"] .cm-s-dracula .CodeMirror-foldgutter-open,
[data-theme="claude"] .CodeMirror-foldgutter-open,
[data-theme="claude"] .cm-s-dracula .CodeMirror-foldgutter-folded,
[data-theme="claude"] .CodeMirror-foldgutter-folded {
    color: #8B7355 !important;
}
/* Claude theme syntax highlighting */
[data-theme="claude"] .cm-s-dracula.CodeMirror,
[data-theme="claude"] .CodeMirror {
    background: #FAF9F6 !important;
}
[data-theme="claude"] .cm-s-dracula .cm-keyword { color: #7C3AED !important; font-weight: bold; }
[data-theme="claude"] .cm-s-dracula .cm-atom { color: #C0392B; }
[data-theme="claude"] .cm-s-dracula .cm-number { color: #B8860B; }
[data-theme="claude"] .cm-s-dracula .cm-def { color: #2563EB; }
[data-theme="claude"] .cm-s-dracula .cm-variable { color: #2D2319; }
[data-theme="claude"] .cm-s-dracula .cm-variable-2 { color: #0D9488; }
[data-theme="claude"] .cm-s-dracula .cm-variable-3, [data-theme="claude"] .cm-s-dracula .cm-type { color: #D97706; }
[data-theme="claude"] .cm-s-dracula .cm-property { color: #5C4A3A; }
[data-theme="claude"] .cm-s-dracula .cm-operator { color: #7C3AED; }
[data-theme="claude"] .cm-s-dracula .cm-comment { color: #8B7355; font-style: italic; }
[data-theme="claude"] .cm-s-dracula .cm-string { color: #2D7D46; }
[data-theme="claude"] .cm-s-dracula .cm-string-2 { color: #0D9488; }
[data-theme="claude"] .cm-s-dracula .cm-meta { color: #5C4A3A; }
[data-theme="claude"] .cm-s-dracula .cm-qualifier { color: #B8860B; }
[data-theme="claude"] .cm-s-dracula .cm-builtin { color: #2563EB; }
[data-theme="claude"] .cm-s-dracula .cm-bracket { color: #5C4A3A; }
[data-theme="claude"] .cm-s-dracula .cm-tag { color: #C0392B; }
[data-theme="claude"] .cm-s-dracula .cm-attribute { color: #D97706; }
[data-theme="claude"] .cm-s-dracula .cm-header { color: #7C3AED; font-weight: bold; }
[data-theme="claude"] .cm-s-dracula .cm-hr { color: #D4C5B0; }
[data-theme="claude"] .cm-s-dracula .cm-link { color: #2563EB; text-decoration: underline; }
[data-theme="claude"] .cm-s-dracula .cm-error { color: #C0392B; }
[data-theme="claude"] .CodeMirror-foldmarker {
    color: #8B7355;
    text-shadow: none;
    font-family: inherit;
}
[data-theme="claude"] .CodeMirror-foldgutter { width: 14px; }
[data-theme="claude"] .CodeMirror-foldgutter-open,
[data-theme="claude"] .CodeMirror-foldgutter-folded { color: #8B7355; }
[data-theme="claude"] .CodeMirror-cursor { border-left-color: #C4621A !important; }

/* ── Dark theme CodeMirror overrides ────────────────── */
/* Ensure dark background on ALL CodeMirror sub-elements to prevent
   black flash during page load/refresh (Dracula theme loads async). */
[data-theme="dark"] .CodeMirror {
    background: #1a1510 !important;
    color: #f5f0eb !important;
}
[data-theme="dark"] .CodeMirror-scroll {
    background: #1a1510 !important;
}
[data-theme="dark"] .CodeMirror-gutters {
    background: #231e17 !important;
    border-right: 1px solid #3a3228 !important;
}
[data-theme="dark"] .CodeMirror-gutter {
    background: #231e17 !important;
}
[data-theme="dark"] .CodeMirror-gutter-wrapper {
    background: #231e17 !important;
}
[data-theme="dark"] .CodeMirror-gutter-elt {
    background: #231e17 !important;
}
[data-theme="dark"] .CodeMirror-linenumber {
    color: #7d7068 !important;
}
[data-theme="dark"] .CodeMirror-foldgutter {
    background: #231e17 !important;
}
[data-theme="dark"] .CodeMirror-foldgutter-open,
[data-theme="dark"] .CodeMirror-foldgutter-folded {
    color: #7d7068 !important;
}
[data-theme="dark"] .CodeMirror-activeline-background {
    background: rgba(58, 50, 40, 0.3) !important;
}
[data-theme="dark"] .CodeMirror-cursor {
    border-left-color: #e8853d !important;
}
[data-theme="dark"] .CodeMirror-selected {
    background: rgba(232, 133, 61, 0.2) !important;
}
[data-theme="dark"] .CodeMirror-focused .CodeMirror-selected {
    background: rgba(232, 133, 61, 0.3) !important;
}
[data-theme="dark"] .CodeMirror-matchingbracket {
    color: #6bc96b !important;
    background: rgba(107, 201, 107, 0.2) !important;
}
[data-theme="dark"] .CodeMirror-dialog {
    background: #2d2620 !important;
    color: #f5f0eb !important;
    border-bottom: 1px solid #3a3228 !important;
}
[data-theme="dark"] .CodeMirror-dialog input {
    background: #16120d !important;
    color: #f5f0eb !important;
    border: 1px solid #3a3228 !important;
}
[data-theme="dark"] .CodeMirror-foldmarker {
    color: #7d7068;
    text-shadow: none;
    font-family: inherit;
}
/* Dark theme syntax highlighting (override Dracula to match warm dark palette) */
[data-theme="dark"] .cm-s-dracula .cm-keyword { color: #b87de8 !important; }
[data-theme="dark"] .cm-s-dracula .cm-atom { color: #e85d5d !important; }
[data-theme="dark"] .cm-s-dracula .cm-number { color: #e8c45d !important; }
[data-theme="dark"] .cm-s-dracula .cm-def { color: #5d9de8 !important; }
[data-theme="dark"] .cm-s-dracula .cm-variable { color: #f5f0eb !important; }
[data-theme="dark"] .cm-s-dracula .cm-variable-2 { color: #5dc4b8 !important; }
[data-theme="dark"] .cm-s-dracula .cm-variable-3,
[data-theme="dark"] .cm-s-dracula .cm-type { color: #e8a35d !important; }
[data-theme="dark"] .cm-s-dracula .cm-property { color: #b5a898 !important; }
[data-theme="dark"] .cm-s-dracula .cm-operator { color: #b87de8 !important; }
[data-theme="dark"] .cm-s-dracula .cm-comment { color: #7d7068 !important; font-style: italic; }
[data-theme="dark"] .cm-s-dracula .cm-string { color: #6bc96b !important; }
[data-theme="dark"] .cm-s-dracula .cm-string-2 { color: #5dc4b8 !important; }
[data-theme="dark"] .cm-s-dracula .cm-meta { color: #b5a898 !important; }
[data-theme="dark"] .cm-s-dracula .cm-qualifier { color: #e8c45d !important; }
[data-theme="dark"] .cm-s-dracula .cm-builtin { color: #5d9de8 !important; }
[data-theme="dark"] .cm-s-dracula .cm-bracket { color: #b5a898 !important; }
[data-theme="dark"] .cm-s-dracula .cm-tag { color: #e85d5d !important; }
[data-theme="dark"] .cm-s-dracula .cm-attribute { color: #e8a35d !important; }
[data-theme="dark"] .cm-s-dracula .cm-header { color: #b87de8 !important; font-weight: bold; }
[data-theme="dark"] .cm-s-dracula .cm-hr { color: #3a3228 !important; }
[data-theme="dark"] .cm-s-dracula .cm-link { color: #5d9de8 !important; text-decoration: underline; }
[data-theme="dark"] .cm-s-dracula .cm-error { color: #e85d5d !important; }

/* Claude theme chat bubbles */
[data-theme="claude"] .chat-msg.user {
    background: #C4621A;
    color: #FFFFFF;
}
[data-theme="claude"] .chat-msg.user .chat-time {
    color: rgba(255,255,255,0.65);
}
[data-theme="claude"] .chat-msg.assistant {
    background: #FFFFFF;
    color: #2D2319;
    border: 1px solid #D4C5B0;
}
[data-theme="claude"] .chat-msg.tool {
    background: rgba(124, 58, 237, 0.08);
    border-color: rgba(124, 58, 237, 0.25);
}
[data-theme="claude"] .chat-msg.error {
    background: rgba(192, 57, 43, 0.08);
    border-color: rgba(192, 57, 43, 0.25);
}
[data-theme="claude"] .chat-msg.warning {
    background: rgba(180, 140, 20, 0.08);
    border-color: rgba(180, 140, 20, 0.25);
    color: #9a7b00;
}
[data-theme="claude"] .chat-msg pre {
    background: #F5F0E8;
}
[data-theme="claude"] .chat-msg code {
    background: #EDE8DB;
}
[data-theme="claude"] .chat-msg .tool-name {
    color: #7C3AED;
}
[data-theme="claude"] .chat-typing {
    background: #FFFFFF;
    border: 1px solid #D4C5B0;
}

/* Claude theme output panel */
[data-theme="claude"] .output-line.stdout { color: #2D2319; }
[data-theme="claude"] .output-line.stderr { color: #C0392B; }
[data-theme="claude"] .output-line.error { color: #C0392B; }
[data-theme="claude"] .output-line.status { color: #8B7355; }
[data-theme="claude"] .output-line.info { color: #2563EB; }

/* Theme toggle button */
#btn-theme {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: color 0.2s, transform 0.3s;
}
#btn-theme:hover {
    color: var(--text-primary);
}
#btn-theme:active {
    transform: scale(0.88);
}

/* ==================== Markdown Preview ==================== */
#markdown-preview {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 16px;
    padding-bottom: 60px;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-primary);
}

#markdown-preview h1 { font-size: 1.8em; font-weight: 700; margin: 0.8em 0 0.4em; border-bottom: 2px solid var(--border); padding-bottom: 0.3em; color: var(--accent); }
#markdown-preview h2 { font-size: 1.5em; font-weight: 600; margin: 0.7em 0 0.3em; border-bottom: 1px solid var(--border); padding-bottom: 0.2em; color: var(--accent); }
#markdown-preview h3 { font-size: 1.25em; font-weight: 600; margin: 0.6em 0 0.3em; color: var(--accent); }
#markdown-preview h4 { font-size: 1.1em; font-weight: 600; margin: 0.5em 0 0.2em; }
#markdown-preview h5, #markdown-preview h6 { font-size: 1em; font-weight: 600; margin: 0.5em 0 0.2em; color: var(--text-secondary); }
#markdown-preview p { margin: 0.6em 0; }
#markdown-preview a { color: var(--blue); text-decoration: none; }
#markdown-preview a:hover { text-decoration: underline; }
#markdown-preview strong { color: var(--accent); font-weight: 700; }
#markdown-preview em { color: var(--text-secondary); }
#markdown-preview ul, #markdown-preview ol { margin: 0.5em 0; padding-left: 2em; }
#markdown-preview li { margin: 0.2em 0; }
#markdown-preview blockquote { margin: 0.8em 0; padding: 8px 16px; border-left: 3px solid var(--accent); background: var(--bg-surface); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--text-secondary); }
#markdown-preview code { font-family: var(--font-mono); background: var(--bg-surface); padding: 2px 6px; border-radius: 3px; font-size: 0.9em; }
#markdown-preview pre { background: var(--bg-tertiary); padding: 14px; border-radius: var(--radius-sm); overflow-x: auto; margin: 0.8em 0; border: 1px solid var(--border); }
#markdown-preview pre code { background: none; padding: 0; font-size: 13px; line-height: 1.5; }
#markdown-preview table { width: 100%; border-collapse: collapse; margin: 0.8em 0; font-size: 13px; }
#markdown-preview th, #markdown-preview td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; }
#markdown-preview th { background: var(--bg-surface); font-weight: 600; }
#markdown-preview tr:nth-child(even) { background: var(--bg-surface); }
#markdown-preview img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }
#markdown-preview hr { border: none; border-top: 2px solid var(--border); margin: 1.5em 0; }
#markdown-preview input[type="checkbox"] { margin-right: 6px; accent-color: var(--accent); }
#markdown-preview .katex-display { margin: 1em 0; overflow-x: auto; }
#markdown-preview .katex { font-size: 1.1em; }

/* Chat panel table rendering */
.chat-content table { width: 100%; border-collapse: collapse; margin: 0.8em 0; font-size: 0.92em; overflow-x: auto; display: block; }
.chat-content th, .chat-content td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; }
.chat-content th { background: var(--bg-surface); font-weight: 600; }
.chat-content tr:nth-child(even) { background: var(--bg-surface); }
.chat-content thead th { border-bottom: 2px solid var(--border); }

/* Chat panel list rendering */
.chat-content ul, .chat-system-msg ul { margin: 0.4em 0; padding-left: 1.5em; list-style: disc; }
.chat-content ol, .chat-system-msg ol { margin: 0.4em 0; padding-left: 1.5em; list-style: decimal; }
.chat-content li, .chat-system-msg li { margin: 0.15em 0; line-height: 1.5; }
.chat-content ul ul, .chat-system-msg ul ul { list-style: circle; margin: 0.15em 0; }
.chat-content ol ul, .chat-system-msg ol ul { list-style: circle; margin: 0.15em 0; }
.chat-content ul ol, .chat-system-msg ul ol { list-style: decimal; margin: 0.15em 0; }

/* Chat panel KaTeX math rendering */
.chat-content .katex-display { margin: 0.8em 0; overflow-x: auto; overflow-y: hidden; }
.chat-content .katex { font-size: 1em; }
.chat-system-msg .katex-display { margin: 0.5em 0; overflow-x: auto; overflow-y: hidden; }
.chat-system-msg .katex { font-size: 0.95em; }
.chat-system-msg table { width: 100%; border-collapse: collapse; margin: 0.5em 0; font-size: 0.9em; overflow-x: auto; display: block; }
.chat-system-msg th, .chat-system-msg td { border: 1px solid var(--border); padding: 5px 8px; text-align: left; }
.chat-system-msg th { background: var(--bg-surface); font-weight: 600; }
.chat-system-msg tr:nth-child(even) { background: var(--bg-surface); }

/* Sub-agent detail dialog styles */
.subagent-status-bar { margin-bottom: 8px; padding: 6px 10px; background: var(--bg-surface); border-radius: var(--radius-sm); font-size: 12px; color: var(--text-secondary); display: flex; align-items: center; gap: 6px; }
.subagent-back-btn { margin-bottom: 8px; padding: 4px 10px; border: 1px solid var(--border); background: var(--bg-tertiary); color: var(--text-secondary); border-radius: var(--radius-sm); cursor: pointer; font-size: 12px; }
.subagent-back-btn:hover { background: var(--bg-surface); color: var(--text-primary); }
.subagent-messages { display: flex; flex-direction: column; gap: 4px; }
.subagent-messages-scroll { display: flex; flex-direction: column; gap: 4px; flex: 1; overflow-y: auto; min-height: 0; -webkit-overflow-scrolling: touch; }
.subagent-messages .chat-msg { margin: 0; }
.subagent-messages .chat-msg.system { background: none; padding: 4px 0; color: var(--text-secondary); }
.subagent-messages .chat-msg.user { background: rgba(232,133,61,0.12); border-radius: 8px; padding: 8px 12px; color: var(--text-primary); }
.subagent-messages .chat-msg.user .chat-time { color: var(--text-muted); }
/* Main agent message badge in sub-agent chat */
.subagent-main-badge { display: inline-block; margin-bottom: 4px; padding: 2px 8px; background: rgba(59,130,246,0.15); color: #3b82f6; border-radius: 10px; font-size: 11px; font-weight: 600; }
.subagent-messages .chat-msg.subagent-main-msg { background: rgba(59,130,246,0.10); border-left: 3px solid #3b82f6; border-radius: 8px; padding: 8px 12px; }
/* Sub-agent → Main agent reply message */
.subagent-reply-badge { display: inline-block; margin-bottom: 4px; padding: 2px 8px; background: rgba(16,185,129,0.15); color: #10b981; border-radius: 10px; font-size: 11px; font-weight: 600; }
.subagent-messages .chat-msg.subagent-reply-msg { background: rgba(16,185,129,0.08); border-left: 3px solid #10b981; border-radius: 8px; padding: 8px 12px; }
.subagent-messages .chat-msg.assistant { background: var(--bg-surface); border-radius: 8px; padding: 8px 12px; color: var(--text-primary); }
/* Final summary message at the end of sub-agent chat */
.subagent-messages .chat-msg.subagent-final-summary { background: rgba(139,92,246,0.08); border-left: 3px solid #8b5cf6; border-radius: 8px; padding: 10px 12px; }
.subagent-final-summary .chat-role-badge { display: inline-block; margin-bottom: 4px; padding: 2px 8px; background: rgba(139,92,246,0.15); color: #8b5cf6; border-radius: 10px; font-size: 11px; font-weight: 600; }
.subagent-messages .chat-msg.tool { background: rgba(203,166,247,0.15); border: 1px solid rgba(203,166,247,0.3); color: var(--text-secondary); font-size: 12px; border-radius: 8px; padding: 4px 8px; }
/* Error & warning messages in sub-agent chat — match main chat red/yellow style */
.subagent-messages .chat-msg.error { background: rgba(232,93,93,0.15); border: 1px solid rgba(232,93,93,0.3); color: var(--red); font-size: 12px; border-radius: 8px; padding: 8px 12px; }
.subagent-messages .chat-msg.warning { background: rgba(232,180,30,0.12); border: 1px solid rgba(232,180,30,0.3); color: #c8a000; font-size: 12px; border-radius: 8px; padding: 8px 12px; }

/* Sub-agent API usage bar — inside bottom bar, solid background */
.subagent-api-usage {
    padding: 6px 10px;
    background: var(--bg-secondary);
    font-size: 10px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    line-height: 1.4;
    word-break: break-all;
    border-top: 1px solid var(--border);
}
.subagent-api-usage.subagent-api-running {
    color: var(--teal);
    background: var(--bg-secondary);
}
.subagent-api-usage.subagent-api-has-errors {
    color: var(--red);
    background: var(--bg-secondary);
}
@keyframes subagent-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Sub-agent bottom bar — solid bar anchored at bottom of dialog */
.subagent-bottom-bar {
    flex-shrink: 0;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
    z-index: 10;
}

/* Sub-agent dynamic execute status — solid bar inside bottom, no blinking overlay */
.subagent-execute-status {
    padding: 8px 12px;
    background: var(--bg-secondary);
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    border-top: 1px solid var(--border);
    font-weight: 500;
}
.subagent-execute-status.subagent-status-calling {
    color: var(--purple);
    background: var(--bg-secondary);
}
.subagent-execute-status.subagent-status-reasoning {
    color: var(--amber);
    background: var(--bg-secondary);
}
.subagent-execute-status.subagent-status-running {
    color: var(--teal);
    background: var(--bg-secondary);
}
.subagent-execute-status.subagent-status-generating {
    color: var(--blue);
    background: var(--bg-secondary);
}

/* Sub-agent persistent todo panel — pinned above messages, collapsible like main chat */
.subagent-persistent-todo {
    flex-shrink: 0;
    margin: 0;
    padding: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
    font-size: 11px;
}
.subagent-persistent-todo .subagent-todo-header {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 6px 10px;
    user-select: none;
    -webkit-user-select: none;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}
.subagent-persistent-todo .subagent-todo-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
}
.subagent-persistent-todo .subagent-todo-toggle-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-muted);
    font-size: 11px;
    cursor: pointer;
    padding: 2px 6px;
    line-height: 1;
    transition: background 0.15s, color 0.15s;
}
.subagent-persistent-todo .subagent-todo-toggle-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.subagent-persistent-todo .subagent-todo-title {
    font-weight: 600;
    font-size: 11px;
    color: var(--text-primary);
}
.subagent-persistent-todo .subagent-todo-progress {
    font-size: 10px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}
.subagent-persistent-todo .subagent-todo-bar {
    height: 3px;
    background: var(--bg-hover);
}
.subagent-persistent-todo .subagent-todo-bar-fill {
    height: 100%;
    background: var(--accent);
    transition: width 0.3s ease;
}
.subagent-persistent-todo .subagent-todo-body {
    padding: 4px 10px;
    max-height: 200px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transition: max-height 0.25s ease, padding 0.25s ease;
}
.subagent-persistent-todo .subagent-todo-body.collapsed {
    max-height: 0 !important;
    padding-top: 0 !important;
    padding-bottom: 0 !important;
    overflow: hidden;
}
.subagent-persistent-todo .subagent-todo-body .todo-item {
    padding: 3px 2px;
    line-height: 1.4;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 11px;
}
.subagent-persistent-todo .subagent-todo-body .todo-item:last-child {
    border-bottom: none;
}
.subagent-persistent-todo .subagent-todo-body .todo-item.todo-completed {
    opacity: 0.6;
    text-decoration: line-through;
}
.subagent-persistent-todo .subagent-todo-body .todo-item.todo-inprogress {
    color: var(--accent);
    font-weight: 500;
}

/* Sub-agent inline todo panel — same visual style as main chat's todo panel */
.subagent-todo-panel {
    margin-top: 6px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    font-size: 11px;
}
.subagent-todo-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}
.subagent-todo-title {
    font-weight: 600;
    font-size: 11px;
    color: var(--text-primary);
}
.subagent-todo-progress {
    font-size: 10px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}
.subagent-todo-bar {
    height: 3px;
    background: var(--bg-hover);
}
.subagent-todo-bar-fill {
    height: 100%;
    background: var(--accent);
    transition: width 0.3s ease;
}
.subagent-todo-items {
    padding: 4px 10px;
    max-height: 200px;
    overflow-y: auto;
}
.subagent-todo-items .todo-item {
    padding: 3px 2px;
    line-height: 1.4;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 11px;
}
.subagent-todo-items .todo-item:last-child {
    border-bottom: none;
}
.subagent-todo-items .todo-item.todo-completed {
    opacity: 0.6;
    text-decoration: line-through;
}
.subagent-todo-items .todo-item.todo-inprogress {
    color: var(--accent);
    font-weight: 500;
}

/* Claude theme markdown overrides */
[data-theme="claude"] #markdown-preview h1,
[data-theme="claude"] #markdown-preview h2 { border-color: #D4C5B0; }
[data-theme="claude"] #markdown-preview code { background: #EDE8DB; }
[data-theme="claude"] #markdown-preview pre { background: #F5F0E8; border-color: #D4C5B0; }
[data-theme="claude"] #markdown-preview blockquote { background: #F5F0E8; border-left-color: #C4621A; }

/* ==================== Bottom Panel Tabs ==================== */
#bottom-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    flex: 1;
    min-width: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
#bottom-tabs::-webkit-scrollbar { display: none; }
#bottom-tabs .btab {
    flex: 1 0 auto;
    min-width: 0;
    padding: 6px 4px;
    border: none;
    background: none;
    color: var(--text-muted);
    font-size: 11px;
    cursor: pointer;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}
#bottom-tabs .btab.active { color: var(--accent); border-bottom-color: var(--accent); }
#bottom-tabs .btab:active { background: var(--bg-hover); }

#bottom-panels { flex: 1; overflow: hidden; position: relative; }
.bpanel { position: absolute; inset: 0; display: none; flex-direction: column; overflow: hidden; }
.bpanel.active { display: flex; }

/* HTTP Client */
#http-client-panel { padding: 8px; display: flex; flex-direction: column; gap: 6px; overflow-y: auto; }
#http-client-panel .http-row { display: flex; gap: 4px; align-items: center; }
#http-client-panel select, #http-client-panel input, #http-client-panel textarea {
    flex: 1; padding: 6px 8px; border: 1px solid var(--border); background: var(--bg-tertiary);
    color: var(--text-primary); border-radius: var(--radius-sm); font-size: 12px; font-family: var(--font-mono);
}
#http-client-panel select { flex: 0 0 70px; }
#http-client-panel button { padding: 6px 12px; border: none; background: var(--accent); color: var(--bg-primary); font-weight: 600; border-radius: var(--radius-sm); cursor: pointer; font-size: 12px; flex-shrink: 0; }
#http-client-panel button:active { background: var(--accent-hover); }
#http-response { margin-top: 4px; background: var(--bg-tertiary); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 8px; font-family: var(--font-mono); font-size: 11px; white-space: pre-wrap; word-break: break-all; max-height: 300px; overflow-y: auto; flex: 1; }
.http-status { font-size: 11px; font-weight: 600; padding: 2px 0; }
.http-status.ok { color: var(--green); }
.http-status.err { color: var(--red); }

/* Process Manager */
#process-manager { padding: 8px; flex: 1; overflow-y: auto; }
#process-manager table { width: 100%; border-collapse: collapse; font-size: 11px; font-family: var(--font-mono); }
#process-manager th { text-align: left; padding: 4px 6px; color: var(--text-muted); border-bottom: 1px solid var(--border); font-weight: 600; font-size: 10px; text-transform: uppercase; }
#process-manager td { padding: 4px 6px; border-bottom: 1px solid rgba(49,50,68,0.2); }
#process-manager .proc-running { color: var(--green); }
#process-manager .proc-stopped { color: var(--text-muted); }
#process-manager button { padding: 3px 8px; border: 1px solid var(--red); background: none; color: var(--red); border-radius: 3px; font-size: 10px; cursor: pointer; }
#process-manager button:active { background: var(--red); color: var(--bg-primary); }

/* Shell Input Bar (inside output panel) */
#shell-input-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    border-top: 1px solid var(--border);
    background: var(--bg-tertiary);
    flex-shrink: 0;
}
#shell-prompt {
    color: var(--green);
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 700;
    user-select: none;
    min-width: 16px;
}
#shell-input {
    flex: 1;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 6px 8px;
    outline: none;
    min-width: 0;
}
#shell-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(232, 133, 61, 0.15);
}
#shell-input::placeholder {
    color: var(--text-muted);
    font-size: 12px;
}

/* Terminal Extra Keys Bar (removed) */

/* Mobile editor fixes */
.CodeMirror {
    height: 100% !important;
    font-size: 12px !important;
}
.CodeMirror-scroll {
    min-height: 100% !important;
}

/* ==================== Git Diff View ==================== */
.diff-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 450;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    animation: fadeIn 0.2s ease;
}

.diff-container {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 95vw;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.diff-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.diff-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

.diff-close-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 16px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.diff-close-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.diff-restore-btn {
    height: 28px;
    padding: 0 8px;
    border: 1px solid var(--border);
    background: none;
    color: var(--text-secondary);
    font-size: 11px;
    cursor: pointer;
    border-radius: 4px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 3px;
}
.diff-restore-btn:hover,
.diff-restore-btn:active {
    background: rgba(189, 147, 249, 0.15);
    color: var(--accent);
    border-color: var(--accent);
}

.diff-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: auto;
    padding: 4px 0;
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.5;
    -webkit-overflow-scrolling: touch;
}

.diff-line {
    display: flex;
    padding: 0 8px;
    min-height: 18px;
    white-space: pre;
}

/* Line number columns in diff view */
.diff-lnum {
    width: 40px;
    flex-shrink: 0;
    text-align: right;
    padding-right: 6px;
    color: var(--text-muted);
    user-select: none;
    font-size: 10px;
    opacity: 0.7;
    box-sizing: border-box;
}

.diff-lnum-old {
    border-right: 1px solid var(--border);
    margin-right: 6px;
}

.diff-lnum-new {
    border-right: 1px solid var(--border);
    margin-right: 6px;
}

.diff-line .diff-sign {
    width: 20px;
    flex-shrink: 0;
    text-align: center;
    color: var(--text-muted);
    user-select: none;
}

.diff-line.diff-add {
    background: rgba(46, 125, 70, 0.2);
}

.diff-line.diff-add .diff-sign {
    color: #2D7D46;
    font-weight: bold;
}

.diff-line.diff-del {
    background: rgba(192, 57, 43, 0.2);
    text-decoration: line-through;
}

.diff-line.diff-del .diff-sign {
    color: #C0392B;
    font-weight: bold;
}

.diff-line.diff-ctx {
    color: var(--text-secondary);
}

.diff-line.diff-meta {
    color: var(--accent);
    font-weight: 600;
    background: rgba(232, 133, 61, 0.1);
}

.diff-line.diff-hunk {
    color: var(--blue);
    font-weight: 600;
    background: rgba(37, 99, 235, 0.1);
}

.diff-line.diff-empty {
    min-height: 8px;
    background: rgba(58, 50, 40, 0.1);
}

/* Claude theme diff adjustments */
[data-theme="claude"] .diff-line.diff-add {
    background: rgba(45, 125, 70, 0.15);
}

[data-theme="claude"] .diff-line.diff-del {
    background: rgba(192, 57, 43, 0.15);
}

[data-theme="claude"] .diff-line.diff-hunk {
    color: #2563EB;
    background: rgba(37, 99, 235, 0.08);
}

[data-theme="claude"] .diff-line.diff-meta {
    color: #C4621A;
    background: rgba(196, 98, 26, 0.08);
}

[data-theme="claude"] .diff-lnum {
    opacity: 0.5;
}

/* Diff file sections (grouped by file) */
.diff-file-section {
    margin-bottom: 2px;
}

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

.diff-file-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    background: var(--bg-hover);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 2;
}

.diff-file-section:first-child .diff-file-header {
    border-top: none;
}

.diff-file-path {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-primary);
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
}

.diff-hunk-rollback-btn {
    height: 24px;
    padding: 0 8px;
    border: 1px solid var(--border);
    background: none;
    color: var(--text-secondary);
    font-size: 10px;
    cursor: pointer;
    border-radius: 4px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 3px;
    flex-shrink: 0;
    margin-left: 8px;
    transition: all 0.15s ease;
}

.diff-hunk-rollback-btn:hover,
.diff-hunk-rollback-btn:active {
    background: rgba(231, 76, 60, 0.15);
    color: #E74C3C;
    border-color: #E74C3C;
}

.diff-file-lines {
    /* Container for diff lines belonging to one file */
}

.diff-line.diff-file-header-line {
    /* "diff --git a/... b/..." lines are less prominent */
    color: var(--text-muted);
    font-size: 10px;
    padding: 2px 8px;
    min-height: 14px;
}

/* ==================== Diff View Mobile Responsive ==================== */
@media (max-width: 768px) {
    .diff-overlay {
        padding: 0;
        align-items: stretch;
        justify-content: stretch;
    }

    .diff-container {
        max-width: 100vw;
        max-height: 100vh;
        height: 100vh;
        width: 100vw;
        border-radius: 0;
        border: none;
    }

    .diff-header {
        padding: 10px 12px;
    }

    .diff-title {
        font-size: 13px;
        max-width: 70vw;
    }

    .diff-close-btn {
        width: 36px;
        height: 36px;
        font-size: 18px;
    }

    .diff-content {
        font-size: 11px;
        line-height: 1.6;
        /* Allow horizontal scroll for long lines on mobile */
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Compact line numbers on tablets */
    .diff-lnum {
        width: 32px;
        padding-right: 4px;
        font-size: 9px;
    }

    .diff-lnum-old,
    .diff-lnum-new {
        margin-right: 4px;
    }

    .diff-line {
        padding: 0 4px;
        min-height: 20px;
    }

    .diff-file-header {
        padding: 8px 10px;
    }

    .diff-file-path {
        font-size: 11px;
        max-width: 60vw;
    }

    .diff-hunk-rollback-btn {
        height: 30px;
        padding: 0 10px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    /* On very small screens, keep line numbers but make compact */
    .diff-lnum {
        width: 24px;
        padding-right: 2px;
        font-size: 8px;
        overflow: hidden;
    }

    .diff-lnum-old,
    .diff-lnum-new {
        margin-right: 2px;
        border-right: 1px solid var(--border);
    }

    .diff-content {
        font-size: 10px;
    }

    .diff-line {
        padding: 0 4px;
        min-height: 18px;
    }

    .diff-line .diff-sign {
        width: 16px;
        font-size: 10px;
    }

    .diff-file-path {
        font-size: 10px;
    }

    .diff-hunk-rollback-btn {
        height: 28px;
        padding: 0 8px;
        font-size: 10px;
    }

    .diff-hunk {
        font-size: 9px;
    }
}

/* Landscape phone: give more height */
@media (max-height: 500px) and (orientation: landscape) {
    .diff-container {
        max-height: 100vh;
        height: 100vh;
    }
}

/* ==================== Conflict Resolution Dialog ==================== */
.conflict-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    animation: fadeIn 0.2s ease;
}

.conflict-container {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 95vw;
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.conflict-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    background: var(--bg-hover);
}

.conflict-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
}

.conflict-actions {
    display: flex;
    gap: 6px;
}

.conflict-header-merge-btn {
    height: 30px;
    padding: 0 14px;
    border: 1px solid #27AE60;
    background: #27AE60;
    color: white;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.15s ease;
    white-space: nowrap;
}
.conflict-header-merge-btn:hover {
    background: #219A52;
    transform: translateY(-1px);
}
.conflict-header-merge-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.conflict-header-refresh-btn {
    height: 30px;
    padding: 0 8px;
    border: 1px solid var(--border);
    background: none;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    transition: all 0.15s ease;
}
.conflict-header-refresh-btn:hover {
    background: rgba(52, 152, 219, 0.15);
    color: #3498DB;
    border-color: #3498DB;
}
.conflict-header-refresh-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.conflict-abort-btn {
    height: 30px;
    padding: 0 12px;
    border: 1px solid var(--border);
    background: none;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.15s ease;
}
.conflict-abort-btn:hover {
    background: rgba(231, 76, 60, 0.15);
    color: #E74C3C;
    border-color: #E74C3C;
}

.conflict-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px 0;
    -webkit-overflow-scrolling: touch;
}

/* File section */
.conflict-file-section {
    margin-bottom: 4px;
}

.conflict-file-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--bg-hover);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 3;
}

.conflict-file-section:first-child .conflict-file-header {
    border-top: none;
}

.conflict-file-icon {
    font-size: 14px;
    flex-shrink: 0;
}

.conflict-file-name {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    min-width: 0;
}

.conflict-file-count {
    font-size: 10px;
    color: #E67E22;
    font-weight: 600;
    background: rgba(230, 126, 34, 0.12);
    padding: 2px 8px;
    border-radius: 10px;
    flex-shrink: 0;
    white-space: nowrap;
}

/* Conflict section (one per <<<<<<<...>>>>>>> block) */
.conflict-section {
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    transition: background 0.3s ease;
}

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

.conflict-section.conflict-section-resolved {
    background: rgba(46, 125, 70, 0.06);
}

.conflict-section-heading {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.conflict-line-info {
    color: var(--text-muted);
    font-weight: 400;
    font-size: 11px;
}

/* Two-column layout for ours/theirs */
.conflict-cols {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: stretch;
}

.conflict-col {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* Chosen/discard states */
.conflict-col.conflict-col-chosen {
    flex: 2;
}

.conflict-col.conflict-col-discarded {
    flex: 0.5;
    opacity: 0.35;
    transform: scale(0.95);
}

.conflict-col.conflict-col-discarded .conflict-bubble {
    text-decoration: line-through;
}

/* Bubble label (本地 / 远程) */
.conflict-bubble-label {
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px 4px 0 0;
    display: inline-block;
    margin-bottom: 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.conflict-label-ours {
    color: #2980B9;
    background: rgba(41, 128, 185, 0.12);
}

.conflict-label-theirs {
    color: #E67E22;
    background: rgba(230, 126, 34, 0.12);
}

/* Code bubble */
.conflict-bubble {
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.5;
    border-radius: 6px;
    padding: 6px 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.conflict-bubble-ours {
    background: rgba(41, 128, 185, 0.08);
    border: 1px solid rgba(41, 128, 185, 0.2);
}

.conflict-bubble-theirs {
    background: rgba(230, 126, 34, 0.08);
    border: 1px solid rgba(230, 126, 34, 0.2);
}

/* Code lines inside bubbles */
.conflict-code-line {
    display: flex;
    padding: 0 8px;
    min-height: 17px;
    white-space: pre;
}

.conflict-code-lnum {
    width: 36px;
    flex-shrink: 0;
    text-align: right;
    padding-right: 8px;
    color: var(--text-muted);
    opacity: 0.6;
    user-select: none;
    font-size: 10px;
    border-right: 1px solid rgba(128, 128, 128, 0.15);
    margin-right: 8px;
}

.conflict-code-text {
    flex: 1;
    min-width: 0;
    color: var(--text-primary);
}

/* Adopt button */
.conflict-adopt-btn {
    margin-top: 6px;
    height: 32px;
    padding: 0 14px;
    border: 1px solid var(--border);
    background: none;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: all 0.15s ease;
    width: 100%;
}

.conflict-adopt-ours:hover,
.conflict-adopt-ours:active {
    background: rgba(41, 128, 185, 0.15);
    color: #2980B9;
    border-color: #2980B9;
}

.conflict-adopt-theirs:hover,
.conflict-adopt-theirs:active {
    background: rgba(230, 126, 34, 0.15);
    color: #E67E22;
    border-color: #E67E22;
}

.conflict-adopt-both {
    flex: 0 0 100%;
    width: 100%;
    margin-top: 4px;
    border-style: dashed;
    color: var(--text-muted);
    font-size: 11px;
}

.conflict-adopt-both:hover,
.conflict-adopt-both:active {
    background: rgba(142, 68, 173, 0.12);
    color: #8E44AD;
    border-color: #8E44AD;
    border-style: solid;
}

.conflict-adopt-btn:disabled {
    cursor: default;
    pointer-events: none;
}

/* Footer */
.conflict-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    background: var(--bg-hover);
}

.conflict-progress {
    text-align: center;
    margin-bottom: 10px;
}

.conflict-progress-text {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.conflict-footer-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.conflict-merge-btn {
    height: 40px;
    padding: 0 24px;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 600;
    cursor: not-allowed;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.conflict-merge-btn:disabled {
    opacity: 0.5;
}

.conflict-merge-btn-ready {
    background: #27AE60;
    color: white;
    border-color: #27AE60;
    cursor: pointer;
    opacity: 1;
    box-shadow: 0 2px 12px rgba(39, 174, 96, 0.3);
}

.conflict-merge-btn-ready:hover {
    background: #219A52;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(39, 174, 96, 0.4);
}

.conflict-refresh-btn {
    height: 40px;
    padding: 0 18px;
    border: 1px solid var(--border);
    background: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.15s ease;
}

.conflict-refresh-btn:hover {
    background: rgba(52, 152, 219, 0.12);
    color: #3498DB;
    border-color: #3498DB;
}

.conflict-refresh-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.conflict-abort-footer-btn {
    height: 40px;
    padding: 0 24px;
    border: 1px solid var(--border);
    background: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.15s ease;
}

.conflict-abort-footer-btn:hover {
    background: rgba(231, 76, 60, 0.12);
    color: #E74C3C;
    border-color: #E74C3C;
}

/* Claude theme adjustments */
[data-theme="claude"] .conflict-bubble-ours {
    background: rgba(41, 128, 185, 0.06);
    border-color: rgba(41, 128, 185, 0.15);
}

[data-theme="claude"] .conflict-bubble-theirs {
    background: rgba(230, 126, 34, 0.06);
    border-color: rgba(230, 126, 34, 0.15);
}

/* ==================== Conflict Dialog Mobile Responsive ==================== */
@media (max-width: 768px) {
    .conflict-overlay {
        padding: 0;
        align-items: stretch;
        justify-content: stretch;
    }

    .conflict-container {
        max-width: 100vw;
        max-height: 100vh;
        height: 100vh;
        width: 100vw;
        border-radius: 0;
        border: none;
    }

    .conflict-header {
        padding: 10px 12px;
        flex-wrap: wrap;
    }

    .conflict-title {
        font-size: 14px;
    }

    .conflict-actions {
        gap: 4px;
    }

    .conflict-header-merge-btn {
        font-size: 11px;
        padding: 0 10px;
    }

    .conflict-cols {
        flex-direction: column;
        gap: 8px;
    }

    .conflict-col {
        width: 100%;
    }

    .conflict-col.conflict-col-chosen {
        flex: none;
    }

    .conflict-col.conflict-col-discarded {
        flex: none;
        max-height: 60px;
        overflow: hidden;
        opacity: 0.3;
    }

    .conflict-section {
        padding: 8px 10px;
    }

    .conflict-bubble {
        font-size: 10px;
    }

    .conflict-code-lnum {
        width: 30px;
        font-size: 9px;
        padding-right: 5px;
        margin-right: 5px;
    }

    .conflict-adopt-btn {
        height: 36px;
        font-size: 13px;
    }

    .conflict-file-header {
        padding: 6px 10px;
    }

    .conflict-file-name {
        font-size: 11px;
    }

    .conflict-footer {
        padding: 10px 12px;
    }

    .conflict-merge-btn,
    .conflict-refresh-btn,
    .conflict-abort-footer-btn {
        height: 44px;
        font-size: 15px;
        flex: 1;
    }
}

@media (max-width: 480px) {
    .conflict-code-lnum {
        width: 0;
        padding: 0;
        margin: 0;
        border: none;
        overflow: hidden;
        display: none;
    }

    .conflict-bubble {
        font-size: 10px;
        padding: 4px 0;
    }

    .conflict-section-heading {
        font-size: 11px;
    }

    .conflict-col.conflict-col-discarded {
        max-height: 40px;
    }
}

/* Landscape phone */
@media (max-height: 500px) and (orientation: landscape) {
    .conflict-container {
        max-height: 100vh;
        height: 100vh;
    }
}

/* ==================== Browser Preview Panel ==================== */
#bpanel-browser {
    /* When NOT active, let .bpanel { display: none } take effect.
       Only show as flex when .active class is present. */
    flex-direction: column;
    overflow: hidden;
}

#bpanel-browser.active {
    display: flex !important;
}

#browser-toolbar {
    flex-shrink: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

#browser-toolbar input {
    font-size: 13px !important;  /* Prevent iOS zoom */
}

#browser-toolbar button {
    transition: background 0.15s;
}

#browser-toolbar button:active {
    opacity: 0.7;
    transform: scale(0.95);
}

#preview-frame {
    flex: 1;
    border: none;
    background: #fff;
    width: 100%;
    min-height: 0;
}

#iframe-logs-panel {
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    overflow: hidden;
}

#iframe-logs {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    font-size: 11px;
    font-family: var(--font-mono);
    line-height: 1.4;
}

/* MD TOC Panel — same transform slide pattern as .sidebar */
#md-toc-panel {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 220px;
    max-width: 85%;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    z-index: 10;
    display: flex;
    flex-direction: column;
    transform: translateX(-100%);
    transition: transform var(--transition);
    will-change: transform;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}
#md-toc-panel.md-toc-open {
    transform: translateX(0);
}
#md-toc-smart-import:hover {
    background: var(--accent) !important;
    color: var(--bg-primary) !important;
    border-color: var(--accent) !important;
}

.md-toc-item:active {
    opacity: 0.7;
}

#browser-toc-btn {
    transition: background 0.15s;
}

/* Browser tools status indicator in chat */
.chat-msg .tool-name[data-tool^="browser_"] {
    color: var(--orange) !important;
}

/* ==================== Copyright Footer ==================== */
#copyright-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--footer-height);
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-top: 1px solid var(--border);
    z-index: 50;
    user-select: none;
    -webkit-user-select: none;
}

/* ==================== Selection Mode ==================== */

/* Transparent overlay that covers the editor during selection mode */
.sel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
    /* Allow pinch-zoom — we only preventDefault single-finger touches in JS */
    touch-action: manipulation;
    cursor: pointer;
    background: transparent;
}

/* Selection cursor handles — fixed-positioned "hammer" style
 * Layout (top to bottom):
 *   .sel-handle-head  — SVG droplet (22×28), the "hammer head"
 *   .sel-handle-stem  — thin blue line (2px wide), the "hammer handle"
 * The droplet tip points DOWN to the exact char position.
 */
.sel-handle {
    position: fixed;
    z-index: 200;
    touch-action: none;
    cursor: grab;
    /* The handle is positioned so droplet tip aligns with the char.
     * No margin — JS sets left/top precisely. */
    pointer-events: auto;
}
.sel-handle:active {
    cursor: grabbing;
}

/* The droplet head — contains an SVG teardrop */
.sel-handle-head {
    width: 22px;
    height: 28px;
    /* Make the touch target larger than the visual droplet */
    padding: 11px 11px 0 11px;
    margin-left: -11px;
    /* The visual droplet is 22×28, but the touch target is 44×28 */
    pointer-events: auto;
}
.sel-handle-head svg {
    display: block;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.3));
}

/* The vertical stem (hammer handle) below the droplet */
.sel-handle-stem {
    width: 2px;
    background: #4a9eff;
    /* Center under the SVG droplet.
     * Head has padding-left:11px, SVG is 22px wide.
     * Stem needs to be at: 11 + 22/2 - 1 = 11 + 10 = 21px from container left */
    margin-left: 21px;
    pointer-events: none;
}

/* Long-press context menu */
.editor-context-menu {
    position: fixed;
    z-index: 1000;
    background: var(--bg-secondary, #2d2d2d);
    border: 1px solid var(--border, #444);
    border-radius: 8px;
    padding: 4px 0;
    min-width: 140px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}
.editor-context-menu-item {
    display: block;
    width: 100%;
    padding: 8px 16px;
    background: none;
    border: none;
    color: var(--text-primary, #e0e0e0);
    font-size: 13px;
    text-align: left;
    cursor: pointer;
}
.editor-context-menu-item:active {
    background: var(--bg-hover, rgba(255,255,255,0.1));
}

/* Selection mode toast */
.editor-toast {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.75);
    color: #fff;
    padding: 6px 16px;
    border-radius: 16px;
    font-size: 12px;
    z-index: 200;
    animation: toastFadeIn 0.2s, toastFadeOut 0.3s 1.2s;
    pointer-events: none;
    white-space: nowrap;
}
@keyframes toastFadeIn {
    from { opacity: 0; transform: translateX(-50%) translateY(4px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
@keyframes toastFadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* Exit selection mode button in toolbar */
#editor-exit-selection-btn {
    color: var(--red) !important;
    font-weight: bold;
    margin-left: auto;
    font-size: 11px;
    white-space: nowrap;
    padding: 2px 8px !important;
    width: auto !important;
}

/* Paste dialog — modal with textarea for native paste */
.sel-paste-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}
.sel-paste-dialog {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 340px;
    padding: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}
.sel-paste-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.sel-paste-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 12px;
}
.sel-paste-input {
    width: 100%;
    min-height: 80px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-mono);
    resize: vertical;
    outline: none;
    -webkit-appearance: none;
}
.sel-paste-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(232, 133, 61, 0.2);
}
.sel-paste-btn-row {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    justify-content: flex-end;
}
.sel-paste-btn {
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
}
.sel-paste-btn:active {
    transform: scale(0.96);
}
.sel-paste-btn-cancel {
    background: var(--bg-hover);
    color: var(--text-secondary);
}
.sel-paste-btn-confirm {
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
}

/* Selection mode active state — enhance selection visibility & hide cursor */
.CodeMirror.sel-mode-active .CodeMirror-selected {
    background: rgba(74, 158, 255, 0.35) !important;
}
.CodeMirror.sel-mode-active .CodeMirror-cursor {
    display: none !important;
}

/* ==================== TTS (Text-to-Speech) ==================== */
#chat-stop-row {
    display: flex;
    align-items: stretch;
    gap: 6px;
    margin-bottom: 6px;
}

#chat-stop-row .chat-stop-btn {
    flex: 1;
    width: auto;
}

/* Wrapper for TTS button + dropdown in stop row (siblings, not nested) */
.chat-tts-wrap {
    position: relative;
    flex-shrink: 0;
    display: flex;
    align-items: stretch;
}

.chat-tts-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 4px 12px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    flex-shrink: 0;
    position: relative;
    transition: all 0.15s ease;
    white-space: nowrap;
    min-height: 36px;
}

.chat-tts-btn:active {
    background: var(--bg-hover);
    transform: scale(0.96);
}

.chat-tts-btn .tts-icon {
    font-size: 14px;
    line-height: 1;
}

.chat-tts-btn .tts-label {
    font-size: 11px;
}

/* Active TTS mode indicator */
.chat-tts-btn.active {
    background: rgba(232, 133, 61, 0.15);
    border-color: var(--accent);
    color: var(--accent);
}

/* Speaking animation — pulse on the icon */
.chat-tts-speaking .tts-icon {
    animation: tts-pulse 1s ease-in-out infinite;
}

@keyframes tts-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.25); }
}

/* TTS Dropdown */
.chat-tts-dropdown {
    position: absolute;
    bottom: calc(100% + 6px);
    right: 0;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px;
    min-width: 140px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 350;
    display: none;
}

.chat-tts-dropdown.open {
    display: block;
}

.chat-tts-option {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 12px;
    border: none;
    background: none;
    color: var(--text-primary);
    font-size: 13px;
    text-align: left;
    cursor: pointer;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    transition: background 0.12s;
}

.chat-tts-option:active {
    background: var(--bg-hover);
}

.chat-tts-option .tts-check {
    width: 16px;
    font-size: 12px;
    color: var(--accent);
    flex-shrink: 0;
    text-align: center;
}

.chat-tts-option .tts-check.empty {
    visibility: hidden;
}

.chat-tts-option .tts-opt-icon {
    flex-shrink: 0;
    font-size: 14px;
}

.chat-tts-option .tts-opt-label {
    flex: 1;
}

/* Click-outside overlay for dropdown */
.chat-tts-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 349;
}

.chat-tts-overlay.open {
    display: block;
}

/* Static TTS toggle wrapper (button + dropdown as siblings) */
.chat-tts-static-wrap {
    position: relative;
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

/* Static TTS toggle button in send row (always visible) */
.chat-tts-toggle {
    width: 34px;
    height: 34px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    transition: all 0.15s ease;
    padding: 0;
}

.chat-tts-toggle:active {
    background: var(--bg-hover);
    transform: scale(0.92);
}

.chat-tts-toggle.active {
    background: rgba(232, 133, 61, 0.15);
    border-color: var(--accent);
    color: var(--accent);
}

.chat-tts-speaking {
    animation: tts-pulse 1s ease-in-out infinite;
}

/* ── Notebook Styles ─────────────────────────────────────────── */

#notebook-container {
    position: absolute;
    inset: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 8px;
    box-sizing: border-box;
}

#notebook-container.hidden {
    display: none !important;
}

.nb-toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    margin-bottom: 8px;
    background: var(--bg-tertiary, rgba(0,0,0,0.2));
    border: 1px solid var(--border);
    border-radius: var(--radius, 8px);
    flex-wrap: wrap;
}

.nb-toolbar button {
    padding: 5px 10px;
    border: 1px solid var(--border);
    background: var(--bg-surface, var(--bg-secondary));
    color: var(--text-primary);
    border-radius: var(--radius-sm, 4px);
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s;
}

.nb-toolbar button:active {
    transform: scale(0.95);
    background: var(--accent);
    color: var(--bg-primary);
}

.nb-kernel-dot {
    font-size: 12px;
    cursor: pointer;
    width: 18px;
    text-align: center;
}

.nb-cells-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* Cell */
.nb-cell {
    border: 1px solid var(--border);
    border-radius: var(--radius, 6px);
    overflow: hidden;
    background: var(--bg-secondary);
    transition: border-color 0.2s;
}

.nb-cell.nb-cell-running {
    border-color: var(--accent);
}

.nb-cell:hover {
    border-color: var(--accent);
}

.nb-cell-toolbar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px 6px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    font-size: 11px;
}

.nb-cell-type-badge {
    padding: 2px 6px;
    border-radius: 3px;
    background: var(--bg-hover);
    color: var(--text-secondary);
    font-weight: 600;
    font-family: var(--font-mono);
    cursor: pointer;
    font-size: 10px;
}

.nb-exec-count {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 10px;
    min-width: 28px;
}

.nb-cell-actions {
    margin-left: auto;
    display: flex;
    gap: 2px;
}

.nb-cell-actions button {
    padding: 2px 6px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 3px;
    font-size: 12px;
    cursor: pointer;
    line-height: 1;
}

.nb-cell-actions button:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nb-cell-actions .nb-btn-run {
    color: var(--green);
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid var(--green);
    transition: all 0.2s;
    font-size: 10px;
    padding: 0;
    background: transparent;
}

.nb-cell-actions .nb-btn-run:hover {
    background: var(--green);
    color: var(--bg-primary, #1e1e2e);
}

/* Running state: spinning circle with stop square inside */
.nb-cell.nb-cell-running .nb-btn-run {
    border-color: var(--accent, #8be9fd);
    color: var(--accent, #8be9fd);
    animation: nb-spin 1.2s linear infinite;
}

.nb-cell.nb-cell-running .nb-btn-run:hover {
    background: var(--accent, #8be9fd);
    color: var(--bg-primary, #1e1e2e);
}

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

.nb-cell-editor-area {
    min-height: 32px;
}

.nb-cell-editor-area .CodeMirror {
    height: auto !important;
    min-height: 32px;
    font-size: 13px;
    border: none;
    background: var(--bg-secondary);
}

.nb-cell-editor-area .CodeMirror-scroll {
    min-height: 0 !important;
    overflow-y: hidden;
}

/* Markdown preview in cell */
.nb-md-preview {
    padding: 8px 12px;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-wrap: break-word;
}

.nb-md-preview.hidden {
    display: none;
}

.nb-cell-editor-area.hidden {
    display: none;
}

/* Output area */
.nb-cell-output {
    padding: 4px 8px;
    max-height: 400px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 12px;
    border-top: 1px solid var(--border);
}

.nb-stream-output {
    margin: 2px 0;
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--text-primary);
}

.nb-stdout-output {
    color: var(--text-primary);
}

.nb-stderr-output {
    color: var(--yellow);
}

.nb-error-output {
    margin: 2px 0;
    padding: 4px 8px;
    background: rgba(255, 68, 68, 0.1);
    border-radius: 4px;
    color: var(--red);
    white-space: pre-wrap;
    word-break: break-all;
}

/* Output action buttons bar */
.nb-output-actions {
    display: flex;
    gap: 6px;
    padding: 4px 0 2px;
    border-top: 1px solid var(--border);
    margin-top: 4px;
}

.nb-output-btn {
    font-size: 11px;
    padding: 2px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg-secondary, #282a36);
    color: var(--text-muted, #888);
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}

.nb-output-btn:hover {
    background: var(--accent, #8be9fd);
    color: var(--bg-primary, #1e1e2e);
    border-color: var(--accent, #8be9fd);
}

.nb-output-btn:active {
    transform: scale(0.95);
}

.nb-result-output {
    margin: 2px 0;
    white-space: pre-wrap;
    word-break: break-all;
    color: var(--text-secondary);
}

.nb-html-output {
    margin: 4px 0;
    overflow-x: auto;
}

.nb-html-output img {
    max-width: 100%;
}

/* Add cell footer */
.nb-add-cell-footer {
    display: flex;
    gap: 8px;
    padding: 8px;
    justify-content: center;
}

.nb-add-cell-footer button {
    padding: 6px 16px;
    border: 1px dashed var(--border);
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius, 6px);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.15s;
}

.nb-add-cell-footer button:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(255,255,255,0.05);
}

/* Raw editor */
.nb-raw-editor {
    width: 100%;
    min-height: 32px;
    padding: 6px 8px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
    resize: vertical;
    box-sizing: border-box;
    outline: none;
}

/* [SCROLL-UX] Floating scroll navigation above the input box */
#chat-input-area {
    position: relative;
}
#chat-scroll-nav {
    position: absolute;
    right: 14px;
    bottom: calc(100% + 10px);
    display: flex;
    flex-direction: column;
    gap: 6px;
    z-index: 60;
}
#chat-scroll-nav button {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1;
    cursor: pointer;
    opacity: 0.72;
    transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
}
#chat-scroll-nav button:hover {
    opacity: 1;
    background: var(--accent);
    color: #fff;
}
#chat-scroll-nav button:active {
    transform: scale(0.94);
}