/* COLOR SCHEME → ui/shared/css/design-system.css (single source of truth).
   No raw hex/rgb here: use var(--brand) / var(--accent) / var(--accent-hover) for
   the brand accent, rgba(var(--brand-rgb), a) for any accent opacity, var(--success|
   warning|danger) (or rgba(var(--*-rgb), a)) for status, var(--purple) for the 2nd hue.
   Need a colour that doesn't exist yet? Add a token to the palette in design-system.css
   (the dark :root block AND its body.light-mode twin), then reference it here.
   Re-theming the whole app (e.g. peach → green) is then a one-file edit. */
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 11px;
    outline: none;
    font-family: inherit;
    max-width: 130px;
  }
  .status-select:focus { border-color: var(--brand); }
  #user-label, #session-label, #agent-label { display: flex; align-items: center; gap: 4px; color: var(--fg-3); font-size: 11px; }
  .status-btn {
    background: var(--bg-tint);
    border: var(--border-width) solid var(--border-strong);
    color: var(--fg-2);
    padding: 2px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
    font-family: inherit;
    transition: 0.15s;
  }
  .status-btn:hover { background: var(--fg-4); border-color: var(--brand); color: var(--fg-1); }
  .status-btn:active { background: var(--fg-3); }
  .status-btn.restarting { opacity: 0.5; pointer-events: none; }
#btn-restart.restarting { animation: spin 1s linear infinite; opacity: 0.6; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

  /* Cloud / Local — UI only (no backend routing) */
  #control-host-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 8px;
    padding-right: 12px;
    border-right: var(--border-width) solid var(--border);
    flex-shrink: 0;
  }
  #control-host-toggle .ch-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--fg-3);
    font-weight: 600;
  }
  #control-host-toggle .segment-track {
    display: flex;
    background: var(--bg-0);
    border: var(--border-width) solid var(--border);
    border-radius: 7px;
    padding: 2px;
    gap: 0;
  }
  #control-host-toggle .segment-track button {
    border: none;
    background: transparent;
    color: var(--fg-3);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-family: inherit;
  }
  #control-host-toggle .segment-track button:hover:not(.active) { color: var(--fg-2); }
  #control-host-toggle .segment-track button.active {
    background: var(--bg-tint);
    color: var(--fg-1);
  }
  #control-host-toggle .segment-track button:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 1px;
  }

  /* ── Responsive ── */
  @media (max-width: 800px) {
    html { overflow: hidden; }
    #stage { flex-direction: column; }
    #chat-panel { width: 100%; min-width: 0; border-left: none; border-top: var(--border-width) solid var(--border); flex: 1; min-height: 0; max-height: none; }
    #main-panel { flex: 1; min-height: 0; }
    #chat-input-area { touch-action: none; overscroll-behavior: none; }
    body.chat-hidden #chat-panel,
    body.chat-hidden #chat-resize-handle { display: none !important; }
    body.chat-visible #main-panel { display: none !important; }
  }

  /* ── Tab buttons in main header ── */
  .tab-btn-group {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-right: 8px;
    padding-right: 12px;
    border-right: var(--border-width) solid var(--border);
  }
  .tab-btn-group .tab-btn {
    background: none;
    border: none;
    color: var(--fg-3);
    padding: 3px 10px;
    font-size: 11px;
    cursor: pointer;
    font-family: inherit;
    border-radius: 4px;
    transition: 0.15s;
    font-weight: 500;
  }
  .tab-btn-group .tab-btn:hover { color: var(--fg-2); background: var(--bg-elev); }
  .tab-btn-group .tab-btn.active {
    color: var(--brand);
    background: rgba(var(--brand-rgb), 0.08);
  }
  .tab-content { display: none; flex: 1; min-height: 0; }
  .tab-content.active { display: flex; flex-direction: column; }
  /* Terminal tab: the embedded web-terminal page fills the panel. */
  .terminal-frame { flex: 1; width: 100%; min-height: 0; border: 0; display: block; background: var(--bg-0); }

  /* ── Collapsible JSON tree ── */
  .json-root {
    font-family: 'Fira Code', Menlo, monospace;
    font-size: 11px;
    line-height: 1.6;
  }
  .json-line {
    padding-left: 12px;
  }
  .json-block {
    cursor: default;
  }
  .json-block.json-collapsed > .json-children { display: none; }
  .json-block.json-collapsed > .json-punc:first-of-type::after { content: ' ... '; color: var(--fg-3); font-style: italic; }
  .json-toggle {
    cursor: pointer;
    color: var(--fg-3);
    font-size: 9px;
    margin-right: 2px;
    user-select: none;
  }
  .json-toggle:hover { color: var(--brand); }
  .json-punc { color: var(--fg-3); }
  .json-key { color: var(--brand); }
  .json-str { color: var(--success); }
  .json-num { color: var(--warning); }
  .json-bool { color: var(--purple); }
  .json-null { color: var(--fg-3); font-style: italic; }

  /* ── Markdown-rendered content fields ── */
  .json-content-md {
    display: inline-block;
    vertical-align: top;
    padding: 8px 12px;
    margin: 2px 0 2px 8px;
    background: var(--bg-0);
    border: var(--border-width) solid var(--border);
    border-radius: 6px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 12px;
    line-height: 1.6;
    color: var(--fg-1);
    max-width: 100%;
    overflow-x: auto;
    min-width: 120px;
  }
  .json-content-md h1 { font-size: 16px; font-weight: 700; color: var(--brand); margin: 8px 0 4px; }
  .json-content-md h2 { font-size: 14px; font-weight: 700; color: var(--brand-strong); margin: 6px 0 3px; }
  .json-content-md h3 { font-size: 13px; font-weight: 600; color: var(--fg-1); margin: 5px 0 2px; }
  .json-content-md h4,
  .json-content-md h5,
  .json-content-md h6 { font-size: 12px; font-weight: 600; color: var(--fg-2); margin: 4px 0 2px; }
  .json-content-md p { margin: 4px 0; }
  .json-content-md pre {
    background: var(--bg-elev);
    border: var(--border-width) solid var(--border);
    border-radius: 4px;
    padding: 8px 10px;
    margin: 4px 0;
    overflow-x: auto;
    max-width: 100%;
  }
  .json-content-md code {
    font-family: 'Fira Code', Menlo, monospace;
    font-size: 11px;
    background: var(--bg-elev);
    padding: 1px 4px;
    border-radius: 3px;
    color: var(--warning);
  }
  .json-content-md pre code {
    background: none;
    padding: 0;
    border-radius: 0;
    color: var(--fg-1);
    white-space: pre-wrap;
    word-break: break-word;
  }
  .json-content-md ul,
  .json-content-md ol {
    margin: 4px 0;
    padding-left: 20px;
  }
  .json-content-md li { margin: 2px 0; }
  .json-content-md strong { color: var(--fg-1); font-weight: 700; }
  .json-content-md em { font-style: italic; color: var(--fg-2); }
  .json-content-md a { color: var(--brand); text-decoration: underline; }
  .json-content-md a:hover { color: var(--brand-strong); }
  .json-content-md br { content: ''; display: block; margin: 0; }
  .json-content-md h1:first-child,
  .json-content-md h2:first-child,
  .json-content-md h3:first-child,
  .json-content-md p:first-child { margin-top: 0; }
  .json-content-md :last-child { margin-bottom: 0; }
  .db-cell-json {
    overflow: auto;
    max-height: 200px;
    padding: 4px;
  }
  /* ── Database viewer ── */
  #db-toolbar {
    display: flex;
    gap: 8px;
    padding: 8px 12px;
    border-bottom: var(--border-width) solid var(--border);
    align-items: center;
    flex-shrink: 0;
  }
  #db-toolbar select {
    background: var(--bg-elev);
    border: var(--border-width) solid var(--border);
    color: var(--fg-1);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    outline: none;
    font-family: inherit;
  }
  #db-toolbar select:focus { border-color: var(--accent); }
  #db-refresh {
    background: var(--bg-elev);
    border: var(--border-width) solid var(--border);
    color: var(--fg-1);
    padding: 4px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-family: inherit;
  }
  #db-refresh:hover { border-color: var(--accent); color: var(--accent); }
  #db-table-list {
    width: 180px;
    min-width: 140px;
    border-right: var(--border-width) solid var(--border);
    overflow-y: auto;
    padding: 4px 0;
    flex-shrink: 0;
  }
  .db-table-item {
    padding: 6px 14px;
    cursor: pointer;
    color: var(--fg-2);
    display: flex;
    justify-content: space-between;
    font-size: 12px;
  }
  .db-table-item:hover { background: var(--bg-elev); }
  .db-table-item.active { background: var(--accent-soft); color: var(--accent); }
  .db-table-item .count {
    color: var(--fg-3);
    font-size: 11px;
  }
  .db-table-reset-btn {
    background: none;
    border: none;
    color: var(--fg-3);
    cursor: pointer;
    font-size: 10px;
    padding: 0 4px;
    line-height: 1;
    opacity: 0;
    transition: opacity 0.15s, color 0.15s;
  }
  .db-table-item:hover .db-table-reset-btn {
    opacity: 1;
  }
  .db-table-reset-btn:hover {
    color: var(--danger);
  }
  #db-table-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    position: relative;
  }
  #db-table-footer {
    padding: 6px 12px;
    background: var(--files-bg-sidebar);
    border-top: var(--border-width) solid var(--files-border-strong);
    color: var(--files-text-muted);
    font-size: 11px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    min-height: 36px;
    flex-shrink: 0;
    box-sizing: border-box;
  }
  #db-table-footer #db-page-info {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
  }
  #db-table-footer .db-table-footer-actions {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
  }
  #db-table-data {
    flex: 1;
    overflow: auto;
    padding: 0;
  }
  .db-hint {
    color: var(--fg-3);
    text-align: center;
    padding: 40px 20px;
    font-size: 13px;
  }
  .db-table {
    min-width: 100%;
    width: auto;
    table-layout: fixed;
    border-collapse: collapse;
    font-size: 12px;
    font-family: 'Fira Code', Menlo, monospace;
  }
  .db-table th {
    background: var(--files-bg-sidebar);
    color: var(--files-text);
    padding: 6px 10px;
    text-align: left;
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: var(--border-width) solid var(--files-border-strong);
    border-right: var(--border-width) solid var(--files-border-strong);
  }

  /* ── DB file-selector dropdown (sidebar header) ─────────────
     Mirrors the .session-dropdown / .agent-dropdown look-and-feel
     in app1.css. Driven entirely by CSS variables so light-mode
     parity comes for free. The menu is position:fixed so it can
     escape the narrow ~180px sidebar column without clipping. */
  .db-select-dropdown {
    position: relative;
    display: flex;
    width: 100%;
    min-width: 0;
  }
  .db-select-dropdown-trigger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    background: var(--files-bg);
    border: var(--border-width) solid var(--files-border-strong);
    color: var(--files-text);
    padding: 0 8px;
    height: 24px;
    border-radius: 4px;
    font-family: inherit;
    font-size: 11px;
    cursor: pointer;
    box-sizing: border-box;
  }
  .db-select-dropdown-trigger:hover { background: var(--files-btn-hover); }
  .db-select-dropdown-trigger > * { pointer-events: none; }
  .db-select-dropdown-trigger #db-select-label {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: left;
  }
  .db-select-dropdown-menu {
    position: fixed;
    top: 0;
    left: 0;
    margin: 0;
    padding: 4px;
    list-style: none;
    background: var(--files-bg-menu);
    border: var(--border-width) solid var(--files-border-strong);
    border-radius: 6px;
    box-shadow: var(--files-menu-shadow);
    z-index: 9999;
    min-width: 240px;
    max-width: 320px;
    max-height: 360px;
    overflow-y: auto;
    font-size: 11px;
    color: var(--files-text);
  }
  .db-select-dropdown-menu[hidden] { display: none; }

  /* In-menu header row: "All databases" master toggle + delete-all */
  .db-pick-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-bottom: var(--border-width) solid var(--files-border-strong);
    margin-bottom: 4px;
    color: var(--files-text-strong);
    font-weight: 600;
    font-size: 11px;
  }
  .db-pick-header-label {
    flex: 1;
    cursor: pointer;
  }
  .db-pick-header-trash {
    background: transparent;
    border: none;
    color: var(--files-text-muted);
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
  }
  .db-pick-header-trash > * { pointer-events: none; }
  .db-pick-header-trash:hover {
    color: var(--files-danger);
    background: var(--files-danger-hov);
  }

  /* Per-database row */
  .db-pick-row {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    border-radius: 4px;
    cursor: pointer;
    color: var(--files-text);
  }
  .db-pick-row:hover { background: var(--files-row-hover); }
  .db-pick-row.selected { background: var(--files-row-selected); color: var(--files-text-strong); }
  .db-pick-row.selected:hover { background: var(--files-row-selected-hov); }
  .db-pick-cb {
    margin: 0;
    cursor: pointer;
    accent-color: var(--files-active-indicator);
    flex-shrink: 0;
  }
  .db-pick-title {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .db-pick-kebab {
    background: none;
    border: none;
    color: var(--files-text-muted);
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
  }
  .db-pick-kebab > * { pointer-events: none; }
  .db-pick-kebab:hover {
    background: var(--files-btn-hover);
    color: var(--files-text-strong);
  }

  /* Kebab popup (parallel to .session-row-actions) */
  .db-pick-actions {
    position: fixed;
    background: var(--files-bg-menu);
    border: var(--border-width) solid var(--files-border-strong);
    border-radius: 6px;
    box-shadow: var(--files-menu-shadow);
    z-index: 10000;
    min-width: 140px;
    padding: 4px;
    color: var(--files-text);
  }
  .db-pick-action {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    background: none;
    border: none;
    color: inherit;
    cursor: pointer;
    font: inherit;
    padding: 6px 8px;
    border-radius: 4px;
    text-align: left;
  }
  .db-pick-action:hover { background: var(--files-btn-hover); }
  .db-pick-action.danger { color: var(--files-danger); }
  .db-pick-action.danger:hover { background: var(--files-danger-hov); }

  /* ── Boot: header spinner (removed) ──────────────────────────────