/* ===== LEFT PANEL (cheat sheet) ===== */
  #left-panel {
    width: 220px;
    flex-shrink: 0;
    background: var(--gutter-bg);
    border-right: 1px solid var(--border);
    overflow-y: scroll;
    overflow-x: hidden;
    padding: 4px 0;
    font-size: 11px;
    scrollbar-width: auto;
    scrollbar-color: var(--scrollbar-hover) var(--gutter-bg);
  }
  #left-panel::-webkit-scrollbar { width: 10px; }
  #left-panel::-webkit-scrollbar-track { background: var(--gutter-bg); border-left: 1px solid var(--border); }
  #left-panel::-webkit-scrollbar-thumb { background: var(--scrollbar-hover); border-radius: 5px; border: 2px solid var(--gutter-bg); }
  #left-panel::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

  .cheat-section { padding: 6px 10px; }
  .cheat-title {
    color: var(--accent);
    font-weight: 600;
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 4px;
    padding-bottom: 3px;
    border-bottom: 1px solid var(--border);
  }
  .cheat-row {
    display: flex;
    justify-content: space-between;
    padding: 2px 0;
    color: var(--text);
    transition: background 0.1s;
  }
  .cheat-key {
    color: var(--orange);
    font-weight: 500;
    min-width: 70px;
    font-size: 11px;
  }
  .cheat-desc { color: var(--text-dim); font-size: 10px; }

  /* ===== RIGHT PANEL (inspector) ===== */
  #right-panel {
    width: 300px;
    height: 100%;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    background: var(--gutter-bg);
    border-left: 1px solid var(--border);
    overflow: hidden;
  }

  #inspector-tabs {
    display: flex;
    align-items: stretch;
    height: 28px;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border);
    background: var(--title-bg);
    user-select: none;
  }
  .insp-tab {
    display: flex;
    align-items: center;
    padding: 0 9px;
    font-size: 10px;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: var(--text-dim);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: color 0.12s, background 0.12s;
  }
  .insp-tab:hover { color: var(--text); background: var(--cur-line); }
  .insp-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
  .insp-spacer { flex: 1; }
  .insp-act {
    display: flex;
    align-items: center;
    padding: 0 8px;
    font-size: 11px;
    color: var(--text-dim);
    cursor: pointer;
  }
  .insp-act:hover { color: var(--red); background: var(--cur-line); }

  #inspector-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 4px 0 10px;
    font-size: 11px;
  }
  #inspector-body::-webkit-scrollbar { width: 9px; }
  #inspector-body::-webkit-scrollbar-track { background: var(--scrollbar-track); }
  #inspector-body::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 4px; border: 2px solid var(--scrollbar-track); }
  #inspector-body::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-hover); }

  .insp-head {
    font-size: 9px;
    letter-spacing: 1.4px;
    text-transform: uppercase;
    color: var(--accent);
    padding: 10px 10px 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 3px;
  }

  /* log rows */
  .insp-log {
    display: flex;
    gap: 7px;
    padding: 2px 10px;
    line-height: 15px;
    word-break: break-word;
  }
  .insp-time { color: var(--line-num); flex-shrink: 0; font-size: 10px; }
  .insp-msg  { flex: 1; min-width: 0; }
  .insp-log.log-success .insp-msg { color: var(--green); }
  .insp-log.log-error   .insp-msg { color: var(--red); }
  .insp-log.log-warn    .insp-msg { color: var(--yellow); }
  .insp-log.log-cmd     .insp-msg { color: var(--accent); }
  .insp-log.log-info    .insp-msg { color: var(--text-dim); }

  /* key/value rows — registers, marks, buffers, stats */
  .insp-kv {
    display: flex;
    align-items: baseline;
    gap: 7px;
    padding: 3px 10px;
    line-height: 15px;
    border-bottom: 1px solid color-mix(in srgb, var(--border) 55%, transparent);
  }
  .insp-k {
    color: var(--orange);
    font-weight: 600;
    min-width: 18px;
    flex-shrink: 0;
  }
  .insp-flag {
    font-size: 9px;
    color: var(--tk-type);
    border: 1px solid var(--border-light);
    border-radius: 3px;
    padding: 0 4px;
    flex-shrink: 0;
  }
  .insp-v {
    flex: 1;
    min-width: 0;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .insp-note { font-size: 9px; color: var(--text-dim); flex-shrink: 0; }
  .insp-mod  { color: var(--yellow); }
  .insp-click { cursor: pointer; }
  .insp-click:hover { background: var(--cur-line); }
  .insp-active { background: color-mix(in srgb, var(--accent) 14%, transparent); }
  .insp-active .insp-v { color: var(--text-bright); }

  .stat-k { color: var(--text-dim); font-weight: 400; min-width: 0; flex: 1; }
  .stat-v { flex: 0 0 auto; color: var(--text-bright); text-align: right; }

  /* line-length histogram */
  .insp-spark {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 54px;
    padding: 6px 10px 0;
  }
  .insp-spark i {
    flex: 1;
    background: var(--accent);
    opacity: 0.65;
    border-radius: 1px 1px 0 0;
    min-height: 1px;
  }
  .insp-axis { padding: 4px 10px 0; text-align: center; }

  .insp-empty { padding: 22px 14px; text-align: center; }
  .insp-empty-t { color: var(--text-dim); font-size: 11px; margin-bottom: 4px; }
  .insp-empty-h { color: var(--line-num); font-size: 10px; line-height: 15px; }
  .insp-empty-h b, .insp-empty b {
    color: var(--orange);
    background: var(--bg-normal);
    border: 1px solid var(--border-light);
    border-radius: 3px;
    padding: 0 3px;
  }

  @media (max-width: 1280px) { #right-panel { width: 250px; } }
  @media (max-width: 1024px) { #right-container { display: none !important; } }

  /* ===== WHICH-KEY =====
     Opens over the bottom of the editor while a prefix key is pending,
     listing what can follow it. It is advisory, so it never takes focus
     and never moves the text underneath. */
  #whichkey {
    display: none;
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: 12px;
    z-index: 40;
    background: color-mix(in srgb, var(--gutter-bg) 96%, transparent);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 10px 14px 8px;
    font-size: 12px;
    pointer-events: none;
    backdrop-filter: blur(6px);
    animation: wk-in 120ms ease-out;
  }
  @keyframes wk-in {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
  }
  @media (prefers-reduced-motion: reduce) {
    #whichkey { animation: none; }
  }

  .wk-title {
    color: var(--accent);
    font-weight: 700;
    font-size: 12px;
    letter-spacing: 0.3px;
    margin-bottom: 8px;
  }
  /* Auto-fit rather than a fixed column count, so the list stays readable
     from a narrow split all the way to a wide window. */
  .wk-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2px 18px;
  }
  .wk-row { display: flex; align-items: baseline; gap: 8px; min-width: 0; }
  .wk-key {
    color: var(--yellow);
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
    min-width: 76px;
  }
  .wk-desc {
    color: var(--text-dim);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .wk-foot {
    margin-top: 8px;
    padding-top: 6px;
    border-top: 1px solid var(--border);
    color: var(--line-num);
    font-size: 10.5px;
  }

  /* On a short window the panel would cover the text it is describing. */
  @media (max-height: 560px) {
    #whichkey { max-height: 42vh; overflow-y: auto; }
  }