/* =========================================================================
     folder.css — vibe-coding project screen (#folder/<id>): file explorer +
     editor/preview + local-folder sync bar.
     ========================================================================= */

  .folder-h { align-items: flex-start; }
  .folder-title { word-break: break-word; }
  .folder-id { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 11px; }
  .folder-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
  .folder-actions .btn { display: inline-flex; align-items: center; gap: 6px; }
  .folder-actions .btn svg { width: 15px; height: 15px; }

  /* «Мои папки» — сетка карточек проектов (вкладка Кабинета). Сетку (display/gap)
     берём из общего .my-grid, переопределяем только ширину колонок. */
  .folder-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .folder-card {
    position: relative;
    display: flex; align-items: center; gap: 12px;
    padding: 14px;
    border-radius: var(--r-md, 10px);
    border: 1px solid var(--border-2);
    background: var(--surface);
    cursor: pointer;
    transition: border-color 0.15s ease, transform 0.12s ease;
  }
  .folder-card:hover { border-color: rgba(110, 150, 135, 0.45); transform: translateY(-2px); }
  .folder-card-ic { flex: 0 0 auto; color: var(--muted); display: grid; place-items: center; }
  .folder-card-ic svg { width: 30px; height: 30px; }
  .folder-card-body { flex: 1 1 auto; min-width: 0; }
  .folder-card-name {
    font-size: 14.5px; font-weight: 500; color: var(--text);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  }
  .folder-card-meta { display: flex; gap: 10px; margin-top: 3px; }
  .folder-card-del {
    flex: 0 0 auto;
    background: transparent; border: 0; color: var(--muted);
    cursor: pointer; padding: 4px; border-radius: 6px;
    opacity: 0; transition: opacity 0.12s ease, color 0.12s ease, background 0.12s ease;
  }
  .folder-card:hover .folder-card-del { opacity: 1; }
  .folder-card-del:hover { color: var(--danger); background: rgba(255, 255, 255, 0.05); }
  .folder-card-del svg { width: 16px; height: 16px; display: block; }

  /* Sync bar (shown when a local folder is linked / syncing). */
  .folder-sync-bar {
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
    margin: 0 0 14px; padding: 8px 12px;
    border: 1px solid var(--border-2); border-radius: var(--r-md, 10px);
    background: var(--surface-2); font-size: 12.5px; color: var(--muted);
  }
  .folder-sync-bar .sync-text { flex: 1; min-width: 120px; }
  .folder-sync-bar .btn.small { padding: 4px 10px; font-size: 12px; }
  .sync-dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 9px; background: var(--muted); }
  .sync-dot.ok { background: #5fb487; box-shadow: 0 0 8px rgba(95,180,135,0.6); }
  .sync-dot.err { background: var(--danger); }
  .sync-dot.init { background: var(--warn); animation: ai-dot 1s ease-in-out infinite; }
  .sync-dot.off { background: var(--muted); }

  /* «Без хранилища»: toggle active state + restore banner. */
  .folder-actions .btn.active { border-color: rgba(95,150,135,0.7); color: var(--text); background: rgba(95,150,135,0.12); }
  .folder-nostorage-banner {
    display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
    margin: 0 0 14px; padding: 9px 12px;
    border: 1px solid rgba(216,166,87,0.5); border-radius: var(--r-md, 10px);
    background: rgba(216,166,87,0.10); font-size: 12.5px; color: var(--text);
  }
  .folder-nostorage-banner .sync-text { flex: 1; min-width: 160px; }
  .folder-frozen-banner { border-color: rgba(213,106,82,0.5); background: rgba(213,106,82,0.10); }

  /* Version-snapshots modal (Batch 4, p.11). */
  .snap-modal-back { position: fixed; inset: 0; z-index: 1300; display: grid; place-items: center; background: rgba(0,0,0,0.5); padding: 20px; }
  .snap-modal {
    width: min(460px, 100%); max-height: 80vh; display: flex; flex-direction: column;
    background: var(--surface, #1a1714); border: 1px solid var(--border-2);
    border-radius: 12px; box-shadow: 0 16px 48px rgba(0,0,0,0.5); overflow: hidden;
  }
  .snap-modal-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; border-bottom: 1px solid var(--border-2); font-weight: 600; color: var(--text); }
  .snap-x { appearance: none; background: transparent; border: 0; cursor: pointer; color: var(--muted); display: inline-grid; place-items: center; padding: 4px; border-radius: 6px; }
  .snap-x svg { width: 15px; height: 15px; }
  .snap-x:hover { color: var(--text); background: rgba(255,255,255,0.06); }
  .snap-actions { padding: 12px 14px; border-bottom: 1px solid var(--border-2); }
  .snap-list { overflow: auto; padding: 6px 0; }
  .snap-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 9px 14px; }
  .snap-row:hover { background: rgba(255,255,255,0.03); }
  .snap-meta { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
  .snap-label { color: var(--text); font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

  /* In-browser run output (Batch 4, p.3). */
  .run-out {
    padding: 10px 12px; height: 100%; box-sizing: border-box; overflow: auto;
    font: 12.5px/1.5 ui-monospace, Menlo, Consolas, monospace;
    color: var(--text); white-space: pre-wrap; word-break: break-word;
  }
  .run-line { padding: 1px 0; }
  .run-head { color: var(--muted); border-bottom: 1px solid var(--border-2); padding-bottom: 6px; margin-bottom: 6px; }
  .run-err { color: var(--danger); }
  .run-done { color: var(--muted); margin-top: 6px; }
  .run-frame { width: 0; height: 0; border: 0; position: absolute; }

  /* Body: resizable panes — [files side] | editor | [preview]. */
  .folder-body {
    display: flex; align-items: stretch;
    height: calc(100vh - 210px); height: calc(100dvh - 210px); min-height: 420px;
  }
  /* Left side pane: open-files list + search + tree. Collapsible + resizable. */
  .folder-side {
    flex: 0 0 248px; width: 248px; min-width: 0; box-sizing: border-box;
    display: flex; flex-direction: column;
    border: 1px solid var(--border-2); border-radius: var(--r-md, 10px);
    background: var(--surface); overflow: hidden;
  }
  .folder-side[hidden] { display: none; }
  .folder-side-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 7px 8px 7px 12px; border-bottom: 1px solid var(--border-2);
    font-size: 12px; color: var(--muted); flex: 0 0 auto;
  }
  .folder-side-hide {
    appearance: none; background: transparent; border: 0; cursor: pointer;
    color: var(--muted); display: inline-grid; place-items: center; padding: 3px; border-radius: 5px;
  }
  .folder-side-hide svg { width: 14px; height: 14px; }
  .folder-side-hide:hover { color: var(--text); background: rgba(255,255,255,0.06); }
  /* Show-pane handle (only when the side is collapsed). */
  .folder-side-show {
    flex: 0 0 auto; align-self: stretch; width: 22px; margin-right: 8px;
    background: var(--surface); border: 1px solid var(--border-2); border-radius: var(--r-md, 10px);
    color: var(--muted); cursor: pointer; display: grid; place-items: center;
  }
  .folder-side-show[hidden] { display: none; }
  .folder-side-show:hover { color: var(--text); border-color: rgba(110,150,135,0.45); }
  .folder-side-show svg { width: 16px; height: 16px; }
  /* Open-files list (vertical «tabs»). */
  .folder-open { flex: 0 0 auto; max-height: 28vh; overflow: auto; border-bottom: 1px solid var(--border-2); padding: 4px 0 6px; }
  .folder-open[hidden] { display: none; }
  .folder-open-title { padding: 5px 12px 3px; text-transform: uppercase; letter-spacing: 0.04em; font-size: 10.5px; }
  .folder-open-row { display: flex; align-items: center; gap: 7px; padding: 4px 8px 4px 12px; cursor: pointer; font-size: 13px; color: var(--text); }
  .folder-open-row:hover { background: rgba(255,255,255,0.04); }
  .folder-open-row.active { background: var(--accent-glow, rgba(95,180,135,0.14)); }
  .folder-open-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .folder-open-close {
    appearance: none; background: transparent; border: 0; cursor: pointer; color: var(--muted);
    display: inline-grid; place-items: center; padding: 2px; border-radius: 4px; opacity: 0; flex: 0 0 auto;
  }
  .folder-open-close svg { width: 12px; height: 12px; }
  .folder-open-row:hover .folder-open-close { opacity: 0.7; }
  .folder-open-close:hover { opacity: 1; color: var(--danger); background: rgba(213,106,82,0.12); }
  /* Search box. */
  .folder-search { flex: 0 0 auto; padding: 8px; border-bottom: 1px solid var(--border-2); }
  .folder-search-input {
    width: 100%; box-sizing: border-box; padding: 6px 9px;
    background: var(--bg, #111); border: 1px solid var(--border-2); border-radius: 7px;
    color: var(--text); font-size: 12.5px; outline: none;
  }
  .folder-search-input:focus { border-color: rgba(95,180,135,0.6); }
  /* The tree fills the rest of the side pane and scrolls. */
  .folder-tree { flex: 1 1 auto; overflow: auto; padding: 6px 0; }
  /* Editor column. */
  .folder-center { flex: 1 1 auto; min-width: 0; display: flex; }
  .folder-center .folder-editor { flex: 1 1 auto; }
  /* Pane resizer (drag to resize the adjacent pane). */
  .pane-rz { flex: 0 0 8px; align-self: stretch; cursor: col-resize; background: transparent; position: relative; touch-action: none; }
  .pane-rz[hidden] { display: none; }
  .pane-rz::after { content: ''; position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; transform: translateX(-0.5px); background: var(--border-2); }
  .pane-rz:hover::after, .pane-rz.rz-active::after { background: rgba(110,150,135,0.7); width: 2px; }
  /* Right-hand preview pane (beside the editor). */
  .editor-preview-pane {
    flex: 0 0 42%; width: 42%; min-width: 0; box-sizing: border-box;
    border: 1px solid var(--border-2); border-radius: var(--r-md, 10px);
    background: var(--surface); overflow: auto;
  }
  .editor-preview-pane[hidden] { display: none; }
  .tree-row {
    display: flex; align-items: center; gap: 7px;
    padding: 5px 10px 5px 8px; cursor: pointer; font-size: 13px;
    color: var(--text); position: relative;
  }
  .tree-row.tree-dir { color: var(--muted); cursor: pointer; font-weight: 600; }
  .tree-row.tree-dir:hover { background: rgba(255,255,255,0.04); }
  .tree-row.tree-file:hover { background: rgba(255,255,255,0.04); }
  .tree-row.active { background: var(--accent-glow, rgba(95,180,135,0.14)); }
  .tree-ic { display: inline-grid; place-items: center; flex: 0 0 16px; color: var(--muted); }
  .tree-ic svg { width: 15px; height: 15px; }
  .tree-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .tree-size { font-size: 10.5px; color: var(--dim, var(--muted)); flex: 0 0 auto; }
  .tree-del {
    appearance: none; background: transparent; border: 0; cursor: pointer;
    color: var(--muted); padding: 2px; border-radius: 4px; opacity: 0;
    display: inline-grid; place-items: center; flex: 0 0 auto;
  }
  .tree-del svg { width: 13px; height: 13px; }
  .tree-row:hover .tree-del { opacity: 0.7; }
  .tree-del:hover { opacity: 1; color: var(--danger); background: rgba(213,106,82,0.12); }

  /* Expand/collapse caret. Rotates 0→90° when the folder is open. */
  .tree-caret {
    flex: 0 0 13px; display: inline-grid; place-items: center;
    color: var(--muted); transition: transform 0.12s ease;
  }
  .tree-caret svg { width: 12px; height: 12px; }
  .tree-caret.open { transform: rotate(90deg); }
  .tree-caret-leaf { visibility: hidden; } /* files keep alignment, no caret */

  /* Drag & drop feedback. */
  .tree-row.dragging { opacity: 0.45; }
  .tree-row.tree-dir.drag-over {
    background: rgba(95,180,135,0.18);
    outline: 1px dashed rgba(95,180,135,0.65); outline-offset: -1px;
  }

  /* Floating context menu + inline name prompt (file tree). */
  .tree-floater { position: fixed; z-index: 1200; }
  .ctx-menu {
    min-width: 170px; padding: 5px;
    background: var(--surface, #1a1714); border: 1px solid var(--border-2);
    border-radius: 10px; box-shadow: 0 12px 34px rgba(0,0,0,0.5);
  }
  .ctx-item {
    display: flex; align-items: center; gap: 9px; width: 100%;
    padding: 8px 10px; background: transparent; border: 0; border-radius: 7px;
    color: var(--text); font-size: 13px; text-align: left; cursor: pointer;
  }
  .ctx-item:hover { background: rgba(255,255,255,0.06); }
  .ctx-item.danger { color: var(--danger); }
  .ctx-item.danger:hover { background: rgba(213,106,82,0.14); }
  .ctx-ic { display: inline-grid; place-items: center; flex: 0 0 16px; color: var(--muted); }
  .ctx-item.danger .ctx-ic { color: var(--danger); }
  .ctx-ic svg { width: 15px; height: 15px; }

  .ctx-prompt {
    width: 244px; padding: 12px;
    background: var(--surface, #1a1714); border: 1px solid var(--border-2);
    border-radius: 10px; box-shadow: 0 12px 34px rgba(0,0,0,0.5);
  }
  .ctx-prompt-title { font-size: 12.5px; color: var(--muted); margin-bottom: 7px; }
  .ctx-prompt-input {
    width: 100%; box-sizing: border-box; padding: 7px 9px;
    background: var(--bg, #111); border: 1px solid var(--border-2); border-radius: 7px;
    color: var(--text); font-size: 13px; outline: none;
    font-family: ui-monospace, Menlo, Consolas, monospace;
  }
  .ctx-prompt-input:focus { border-color: rgba(95,180,135,0.6); }
  .ctx-prompt-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 10px; }
  .ctx-prompt-actions .btn.small { padding: 5px 12px; font-size: 12px; }

  .folder-editor {
    border: 1px solid var(--border-2); border-radius: var(--r-md, 10px);
    background: var(--surface); display: flex; flex-direction: column; overflow: hidden;
  }
  .folder-empty-edit { padding: 40px 20px; text-align: center; font-size: 13px; }
  .editor-bar {
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
    padding: 8px 12px; border-bottom: 1px solid var(--border-2); flex: 0 0 auto;
    background: var(--bg-2);
  }
  .editor-path {
    font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12px;
    color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  }
  .editor-bar-actions { display: flex; gap: 6px; flex: 0 0 auto; }
  .editor-bar-actions .btn.small { display: inline-flex; align-items: center; gap: 5px; padding: 5px 10px; font-size: 12px; }
  .editor-bar-actions .btn.small svg { width: 14px; height: 14px; }
  /* Code editor: line-number gutter + a transparent textarea over a highlighted
     <pre>. textarea, pre and gutter MUST share font/size/line-height so the
     highlighted layer aligns exactly under the (transparent) textarea text. */
  .code-edit { flex: 1 1 auto; display: flex; min-height: 0; overflow: hidden; background: var(--bg); }
  .code-gutter {
    flex: 0 0 auto; overflow: hidden; text-align: right; white-space: pre;
    padding: 12px 8px 12px 12px; min-width: 34px; user-select: none;
    color: var(--dim, var(--muted)); background: rgba(255,255,255,0.02);
    border-right: 1px solid var(--border-2);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 13px; line-height: 1.55;
  }
  .code-main { position: relative; flex: 1 1 auto; min-width: 0; }
  .editor-area, .code-hl {
    margin: 0; border: 0; padding: 12px 14px; letter-spacing: 0;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 13px; line-height: 1.55; tab-size: 2;
    white-space: pre; word-wrap: normal; overflow-wrap: normal;
  }
  .code-hl {
    position: absolute; inset: 0; overflow: hidden; pointer-events: none;
    z-index: 1; color: var(--text); background: transparent;
  }
  .editor-area {
    position: absolute; inset: 0; overflow: auto; resize: none; outline: none;
    z-index: 2; background: transparent; color: transparent; caret-color: var(--text);
  }
  .editor-area.plain { color: var(--text); }   /* no overlay (plain / large file) */
  .editor-area::selection { background: rgba(95,180,135,0.30); }
  .code-hl .tok-com { color: #7d8a99; font-style: italic; }
  .code-hl .tok-str { color: #9ecf8f; }
  .code-hl .tok-num { color: #d8a657; }
  .code-hl .tok-kw  { color: #7fb3d5; }
  .code-hl .tok-tag { color: #e0879a; }

  .editor-preview-frame { width: 100%; height: 100%; border: 0; background: #fff; display: block; }
  /* Active state for the «Просмотр» toggle. */
  .editor-bar-actions .btn.small.active { color: var(--text); border-color: rgba(95,180,135,0.6); }
  /* Non-iframe previews (JSON pretty-print, CSV table). */
  .editor-preview-pane .prev-json {
    margin: 0; padding: 14px; color: var(--text);
    font: 12.5px/1.55 ui-monospace, Menlo, Consolas, monospace;
    white-space: pre; overflow: auto;
  }
  .editor-preview-pane .prev-csv-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .editor-preview-pane .prev-csv { border-collapse: collapse; font-size: 12.5px; margin: 10px; }
  .editor-preview-pane .prev-csv th, .editor-preview-pane .prev-csv td {
    border: 1px solid var(--border-2); padding: 5px 9px; text-align: left; white-space: nowrap;
  }
  .editor-preview-pane .prev-csv th { background: var(--bg-2); color: var(--muted); position: sticky; top: 0; }
  .editor-preview-pane .prev-note, .editor-preview-pane .prev-empty { padding: 8px 12px; }

  @media (max-width: 760px) {
    .folder-body { flex-direction: column; height: auto; }
    .folder-side { flex: 0 0 auto; width: auto; }
    .folder-tree { max-height: 240px; }
    .folder-center { display: block; }
    .folder-editor { min-height: 360px; }
    .code-edit { min-height: 300px; }
    .pane-rz { display: none; }
    .editor-preview-pane { flex: 0 0 auto; width: auto; min-height: 280px; }
    .folder-side-show { align-self: flex-start; width: auto; padding: 4px 10px; }
  }

  /* ── Mobile / touch adaptations ── */

  /* P1: hover-only buttons: make delete/close buttons visible on touch devices */
  @media (hover: none) {
    .folder-card-del {
      opacity: .55;
      padding: 10px;
    }
    .folder-open-close {
      opacity: .55;
      padding: 10px;
    }
    .tree-del {
      opacity: .55;
      padding: 10px;
    }
    /* Wrap hover-gated :hover rules so they fire only on real hover devices */
    .folder-card:hover .folder-card-del { opacity: .55; }
    .folder-open-row:hover .folder-open-close { opacity: .55; }
    .tree-row:hover .tree-del { opacity: .55; }
  }

  /* P1: tap targets for snap-x and folder-side-hide (44×44 min) */
  @media (hover: none), (pointer: coarse) {
    .snap-x {
      min-width: 44px;
      min-height: 44px;
    }
    .folder-side-hide {
      min-width: 44px;
      min-height: 44px;
    }
  }

  /* P1: hover visual effects only on hover-capable devices */
  @media (hover: hover) {
    .folder-card:hover { border-color: rgba(110, 150, 135, 0.45); transform: translateY(-2px); }
    .folder-card:hover .folder-card-del { opacity: 1; }
    .folder-open-row:hover .folder-open-close { opacity: 0.7; }
    .tree-row:hover .tree-del { opacity: 0.7; }
    .snap-x:hover { color: var(--text); background: rgba(255,255,255,0.06); }
    .folder-side-hide:hover { color: var(--text); background: rgba(255,255,255,0.06); }
    .folder-side-show:hover { color: var(--text); border-color: rgba(110,150,135,0.45); }
    .tree-row.tree-dir:hover { background: rgba(255,255,255,0.04); }
    .tree-row.tree-file:hover { background: rgba(255,255,255,0.04); }
    .folder-open-row:hover { background: rgba(255,255,255,0.04); }
    .ctx-item:hover { background: rgba(255,255,255,0.06); }
    .ctx-item.danger:hover { background: rgba(213,106,82,0.14); }
    .folder-card-del:hover { color: var(--danger); background: rgba(255, 255, 255, 0.05); }
    .folder-open-close:hover { opacity: 1; color: var(--danger); background: rgba(213,106,82,0.12); }
    .tree-del:hover { opacity: 1; color: var(--danger); background: rgba(213,106,82,0.12); }
    .snap-row:hover { background: rgba(255,255,255,0.03); }
    .pane-rz:hover::after { background: rgba(110,150,135,0.7); width: 2px; }
  }