.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
  .toolbar {
    height: 44px; flex-shrink: 0;
    display: flex; align-items: center; gap: 10px;
    padding: 0 14px;
    border-bottom: 1px solid var(--hairline-strong);
    background: rgba(0,0,0,0.15);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: relative; z-index: 50;
  }
  .breadcrumb { display: flex; align-items: center; gap: 6px; min-width: 0; }
  .crumb {
    font-size: var(--text-md); color: var(--muted);
    padding: 4px 6px; border-radius: 4px;
    cursor: pointer; transition: all 0.1s;
    display: inline-flex; align-items: center; gap: 6px;
    line-height: 1; border: 0; background: transparent;
    white-space: nowrap; text-decoration: none;
  }
  .crumb:hover { background: var(--surface-strong); color: var(--fg-2); }
  .crumb.terminal { color: var(--fg); font-weight: 600; cursor: default; }
  .crumb.terminal:hover { background: transparent; }
  .crumb svg { width: 13px; height: 13px; color: var(--muted); }
  .crumb.filename {
    font-family: var(--font-mono); font-weight: 500; color: var(--fg);
    overflow: hidden; text-overflow: ellipsis; min-width: 0;
  }
  .crumb-sep { color: var(--muted-2); font-size: var(--text-md); user-select: none; }
  .toolbar-spacer { flex: 1; }
  .toolbar-search { width: 220px; position: relative; }
  .toolbar-search input {
    width: 100%; height: 26px;
    padding: 0 30px 0 26px;
    border: 1px solid var(--hairline); border-radius: 5px;
    background: var(--surface);
    font-size: var(--text-base); color: var(--fg);
    transition: all 0.12s;
  }
  .toolbar-search input::placeholder { color: var(--muted-2); }
  .toolbar-search input:focus {
    outline: 0; border-color: var(--accent);
    background: var(--surface-strong);
    box-shadow: 0 0 0 2px var(--accent-soft);
  }
  .toolbar-search-icon {
    position: absolute; left: 8px; top: 50%; transform: translateY(-50%);
    width: 12px; height: 12px; color: var(--muted); pointer-events: none;
  }
  .toolbar-search-kbd {
    position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
    font-family: var(--font-mono); font-size: 10px; color: var(--muted-2);
    padding: 1px 5px;
    border: 1px solid var(--hairline); border-radius: 3px;
    pointer-events: none; line-height: 1.2;
  }
  .toolbar-search input:focus ~ .toolbar-search-kbd,
  .toolbar-search input:not(:placeholder-shown) ~ .toolbar-search-kbd { opacity: 0; }
  .filter-toggle {
    height: 26px; width: 26px; border-radius: 5px;
    color: var(--muted); display: inline-grid; place-items: center;
    transition: all 0.1s; border: 1px solid transparent;
  }
  .filter-toggle:hover { color: var(--fg-2); background: var(--surface-strong); }
  .filter-toggle.active { color: var(--accent-2); background: var(--accent-soft); border-color: var(--accent-soft); }
  .filter-toggle svg { width: 13px; height: 13px; }

  .sort-group {
    display: inline-flex; align-items: center; gap: 2px;
    height: 26px; padding: 0 4px 0 8px;
    border-radius: 5px; cursor: pointer;
    color: var(--muted); font-size: var(--text-sm);
    transition: background 0.1s, color 0.1s;
  }
  .sort-group:hover { background: var(--surface-strong); color: var(--fg-2); }
  .sort-group .label { font-family: var(--font-mono); letter-spacing: 0.02em; }
  .sort-group svg { width: 13px; height: 13px; }
  .sort-group .arrow-up, .sort-group .arrow-down { transition: opacity 0.12s; }
  .sort-group.desc .arrow-up { opacity: 0.25; }
  .sort-group.desc .arrow-down { opacity: 1; }
  .sort-group.asc .arrow-up { opacity: 1; }
  .sort-group.asc .arrow-down { opacity: 0.25; }

  .tab-group {
    display: inline-flex;
    border: 1px solid var(--hairline-strong); border-radius: 5px;
    overflow: hidden; height: 26px;
  }
  .tab-group button {
    padding: 0 12px; font-size: 12px; color: var(--muted);
    border: none; background: none; cursor: pointer;
    border-right: 1px solid var(--hairline-strong);
    display: inline-flex; align-items: center; transition: all 0.1s;
    font-family: inherit;
  }
  .tab-group button:last-child { border-right: 0; }
  .tab-group button:hover { background: var(--surface); color: var(--fg-2); }
  .tab-group button.active { background: var(--accent-soft); color: var(--accent-2); }

  /* Source filter */
  .source-filter-wrap { position: relative; }
  .filter-btn {
    display: inline-flex; align-items: center; gap: 6px;
    height: 26px; padding: 0 10px;
    border: 1px solid var(--hairline-strong); border-radius: 5px;
    background: var(--surface); color: var(--fg-2);
    font-size: 11.5px; font-weight: 500; cursor: pointer;
    transition: all 0.12s;
  }
  .filter-btn:hover { background: var(--surface-strong); color: var(--fg); border-color: var(--hairline-vivid); }
  .filter-btn.active { border-color: rgba(167,139,250,0.35); background: var(--accent-soft); color: var(--accent-2); }
  .filter-btn svg { width: 11px; height: 11px; }
  .filter-btn .filter-label { font-family: var(--font-mono); font-size: 10.5px; color: var(--muted); letter-spacing: 0.04em; }
  .filter-btn.active .filter-label { color: var(--accent); }

  .filter-dropdown {
    position: absolute; top: calc(100% + 6px); right: 0;
    width: 220px; background: rgba(20, 22, 38, 0.98);
    backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--hairline-strong); border-radius: 8px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.05);
    opacity: 0; transform: translateY(-4px);
    pointer-events: none; transition: all 0.15s;
    z-index: 100; padding: 6px;
  }
  .filter-dropdown.show { opacity: 1; transform: translateY(0); pointer-events: auto; }
  .fd-row {
    display: flex; align-items: center; gap: 10px;
    padding: 8px 10px; border-radius: 5px; cursor: pointer;
    transition: background 0.08s;
  }
  .fd-row:hover { background: rgba(255,255,255,0.03); }
  .fd-row .fd-check {
    width: 14px; height: 14px;
    border: 1.5px solid var(--muted-2); border-radius: 3px;
    flex-shrink: 0; display: grid; place-items: center;
    transition: all 0.1s;
  }
  .fd-row.checked .fd-check { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 6px var(--accent-glow); }
  .fd-row .fd-check svg { width: 10px; height: 10px; color: var(--bg); opacity: 0; }
  .fd-row.checked .fd-check svg { opacity: 1; }
  .fd-row .fd-name { font-size: 12.5px; color: var(--fg-2); flex: 1; }
  .fd-row.checked .fd-name { color: var(--fg); }
  .fd-divider { height: 1px; background: var(--hairline); margin: 4px 6px; }

  .toolbar-action-primary {
    display: inline-flex; align-items: center; gap: 5px;
    height: 26px; padding: 0 12px;
    border: 1px solid rgba(167,139,250,0.35); border-radius: 5px;
    background: var(--accent-soft); color: var(--accent-2);
    font-size: 12px; font-weight: 500; cursor: pointer;
    transition: all 0.12s;
  }
  .toolbar-action-primary:hover {
    background: rgba(167,139,250,0.18); border-color: var(--accent);
    color: var(--fg); box-shadow: 0 0 12px rgba(167,139,250,0.20);
  }
  .toolbar-action-primary .plus { font-size: 14px; line-height: 1; opacity: 0.8; font-weight: 400; }