:root {
    color-scheme: light;
    --bg: #f5f5f3; --panel: #f5f5f3; --panel2: #eeeee9;
    --line: #d8d8d2; --text: #202020; --muted: #626262;
    --accent: #626262; --accent2: #404040; --good: #626262; --bad: #a8463b;
    --paper: #faf9f5; --checker: #efefeb; --on-accent: #fff;
    --radius: 2px;
    --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --serif: Georgia, 'Times New Roman', serif;
  }
  :root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #101010; --panel: #161616; --panel2: #202020;
    --line: #353535; --text: #d4d4d4; --muted: #a4a4a4;
    --accent: #a4a4a4; --accent2: #d4d4d4; --good: #a4a4a4; --bad: #e08579;
    --paper: #1a1a1a; --checker: #1e1e1e; --on-accent: #101010;
  }
  * { box-sizing: border-box; }
  html, body { height: 100%; margin: 0; }
  body {
    background: var(--bg);
    color: var(--text);
    font: 14px/1.5 var(--sans);
    display: grid;
    grid-template-columns: 340px 1fr;
    grid-template-rows: 100vh;
    overflow: hidden;
  }

  /* ---------- Sidebar ---------- */
  aside {
    background: var(--panel);
    border-right: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    min-height: 0;
    position: relative;
  }
  /* Highlight the settings panel when it's the active "view" (keyboard focus). */
  aside.view-active { box-shadow: inset 0 0 0 2px var(--accent); }
  .brand {
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .brand .logo {
    width: 26px; height: 26px; border-radius: 2px;
    background: var(--text);
    flex: none;
  }
  .brand h1 { font-size: 15px; margin: 0; font-weight: 650; }
  .brand small { color: var(--muted); font-weight: 400; display:block; font-size: 12px; }
  .brand .vim-badge { margin-left:auto; }
  button.vim-badge { background:var(--panel2); border:1px solid var(--line); border-radius: 2px; color:var(--muted); padding:3px 7px; cursor:pointer; }

  /* ---- Unified panel blocks (one continuous flow) ---- */
  /* Primary actions: the big buttons that used to live in the topbar. */
  .panel-actions { display:grid; grid-template-columns:1fr 1fr; gap:6px; margin:2px 0 12px; }
  .panel-actions .btn { width:100%; justify-content:center; }
  .panel-actions .btn.wide { grid-column:1 / -1; }
  /* Undo / redo pair sits on one row with a subtle divider look. */
  .ur-row { display:flex; gap:6px; }
  .ur-row.wide { grid-column:1 / -1; }
  .ur-row .btn { flex:1; justify-content:center; }

  /* Tools: eyedropper / fill / edit / lasso — chunky toggle buttons. */
  .tools-grid { display:grid; grid-template-columns:1fr 1fr; gap:6px; }
  .tool-btn {
    display:flex; flex-direction:column; align-items:flex-start; gap:2px;
    border:1px solid var(--line); background:var(--panel2); color:var(--text);
    padding:8px 10px; border-radius: 2px; cursor:pointer; text-align:left;
  }
  .tool-btn .t-name { font-size: 12px; font-weight:650; display:flex; align-items:center; gap:6px; }
  .tool-btn .t-key { font:12px var(--sans); color:var(--muted); border:1px solid var(--line); border-radius:4px; padding:0 4px; }
  .tool-btn .t-sub { font-size: 12px; color:var(--muted); }
  .tool-btn:hover { border-color: var(--accent); }
  .tool-btn.active { background: var(--accent); color:var(--on-accent); border-color:var(--accent); }
  .tool-btn.active .t-sub, .tool-btn.active .t-key { color:var(--on-accent); border-color:rgba(0,0,0,.3); }
  .tool-btn:disabled { opacity:.4; cursor:not-allowed; }

  /* ---- Colors panel (used palette + picked list) ---- */
  .colors-panel { margin-bottom: 6px; }
  .palette-meta { font-size: 12px; color:var(--muted); margin:2px 0 8px; }
  /* Fill-color picker row (choose any color, not just palette ones). */
  .fill-pick { display:flex; align-items:center; gap:8px; margin:4px 0 8px; }
  .fill-pick .fp-swatch {
    width:28px; height:28px; border-radius: 2px; border:1px solid rgba(255,255,255,.3);
    position:relative; overflow:hidden; cursor:pointer; flex:none; background:#ff00ff;
  }
  .fill-pick .fp-swatch input[type=color] {
    position:absolute; inset:0; opacity:0; width:100%; height:100%; border:none; cursor:pointer;
  }
  .fill-pick .fp-hex {
    width:80px; background:var(--bg); border:1px solid var(--line); color:var(--text);
    border-radius: 2px; padding:4px 7px; font:12px var(--sans);
  }
  .fill-pick .fp-hex:focus { outline:none; border-color:var(--accent); }
  .fill-pick .fp-label { font-size: 12px; color:var(--muted); }
  .palette-meta b { color:var(--text); }
  .swatch-grid { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:6px; }
  .swatch {
    position:relative; width:30px; height:30px; border-radius: 2px; cursor:pointer; padding:0;
    border:1px solid rgba(255,255,255,.18); box-shadow:0 1px 3px rgba(0,0,0,.4);
  }
  .swatch:hover { outline:2px solid var(--accent); outline-offset:1px; }
  .swatch.active { outline:2px solid var(--good); outline-offset:1px; }
  /* Selected-for-merge swatch: purple ring + checkmark. */
  .swatch.picked-sel { outline:2px solid var(--accent2); outline-offset:1px; }
  /* Keyboard cursor over a swatch. */
  .swatch.kb-cursor { outline:2px solid #fff; outline-offset:2px; box-shadow:0 0 0 1px #000, 0 0 8px var(--accent); }
  .swatch .tick {
    position:absolute; top:-5px; left:-5px; width:14px; height:14px; border-radius:50%;
    background:var(--accent2); color:#fff; font:700 12px/14px system-ui; text-align:center;
  }
  /* Multi-select merge toolbar. */
  .merge-bar { display:none; flex-direction:column; gap:6px; margin:2px 0 8px;
    background:var(--panel2); border:1px solid var(--accent2); border-radius: 2px; padding:8px; }
  .merge-bar.show { display:flex; }
  .merge-bar .mb-row { display:flex; flex-wrap:wrap; gap:5px; align-items:center; font-size: 12px; color:var(--muted); }
  .merge-bar .mb-chip { width:14px; height:14px; border-radius:4px; border:1px solid rgba(255,255,255,.25);
    display:inline-block; vertical-align:middle; margin-right:3px; }
  .merge-bar .mini-btn { display:inline-flex; align-items:center; }
  /* Colors panel tools row (Select toggle + tip). */
  .colors-tools { display:flex; align-items:center; gap:8px; margin:2px 0 7px; }
  .colors-tip { font-size: 12px; color:var(--muted); }
  #selectModeBtn.on { background:var(--accent2); color:#fff; border-color:var(--accent2); }
  .swatch .cnt {
    position:absolute; bottom:-4px; right:-4px; background:var(--bg); color:var(--text);
    border:1px solid var(--line); border-radius: 2px; font:600 12px/1 var(--sans);
    padding:1px 3px; min-width:12px; text-align:center;
  }
  /* Selected-for-menu state shows a little toolbar under the grid. */
  .swatch-menu {
    display:none; gap:5px; align-items:center; flex-wrap:wrap;
    background:var(--panel2); border:1px solid var(--line); border-radius: 2px;
    padding:6px 8px; margin:2px 0 8px; font-size: 12px;
  }
  .swatch-menu.show { display:flex; }
  .swatch-menu .sw-chip { width:16px;height:16px;border-radius:4px;border:1px solid rgba(255,255,255,.2); }
  .swatch-menu .hex { font-family:var(--sans); color:var(--muted); }
  .mini-btn {
    border:1px solid var(--line); background:var(--bg); color:var(--text);
    border-radius: 2px; padding:2px 7px; font-size: 12px; cursor:pointer;
  }
  .mini-btn:hover { border-color:var(--accent); }
  .mini-btn.danger:hover { border-color:var(--bad); color:var(--bad); }
  .picked-head {
    font-size: 12px; color:var(--muted); margin:8px 0 5px; display:flex;
    align-items:center; justify-content:space-between; text-transform:uppercase; letter-spacing:.06em;
  }
  .picked-empty { font-size: 12px; color:var(--muted); font-style:italic; }
  /* The active Fill color indicator. */
  .fill-active {
    display:flex; align-items:center; gap:6px; font-size: 12px; color:var(--muted);
    margin:6px 0 2px;
  }
  .fill-active .fa-chip { width:16px;height:16px;border-radius:4px;border:1px solid rgba(255,255,255,.25); }

  /* Mode pill in the topbar shows NORMAL / VIEW / EDIT / PICK etc. */
  .mode-pill {
    font:12px var(--sans); font-weight:700; letter-spacing:.06em;
    border:1px solid var(--line); border-radius: 2px; padding:3px 9px; color:var(--muted);
  }
  .mode-pill.edit { background:var(--accent2); color:var(--on-accent); border-color:var(--accent2); }
  .mode-pill.view { background:var(--accent); color:var(--on-accent); border-color:var(--accent); }
  .mode-pill.pick, .mode-pill.lasso { background:var(--good); color:var(--on-accent); border-color:var(--good); }

  .controls {
    padding: 8px 14px 16px;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
  }
  .controls::-webkit-scrollbar { width: 10px; }
  .controls::-webkit-scrollbar-thumb { background: var(--line); border-radius: 2px; }

  /* fixed top area: presets + background tool */
  .sidebar-top { padding: 10px 14px 4px; border-bottom: 1px solid var(--line); }
  .presets { margin-bottom: 10px; }
  .presets-label, .bg-desc, .bg-head {
    font-size: 12px; color: var(--muted);
  }
  .presets-label { text-transform: uppercase; letter-spacing: .07em; display:block; margin-bottom:5px; }
  .preset-row { display: flex; gap: 5px; }
  .preset-row button {
    flex: 1; border: 1px solid var(--line); background: var(--panel2); color: var(--text);
    padding: 6px 4px; border-radius: 2px; cursor: pointer; font-size: 12px; font-weight: 600;
  }
  .preset-row button:hover { border-color: var(--accent); }
  .preset-row button.active { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }

  .bg-tool { background: var(--panel2); border: 1px solid var(--line); border-radius: 2px; padding: 9px 11px; margin-top: 6px; }
  .bg-head { display:flex; align-items:center; gap:7px; cursor:pointer; }
  .bg-head b { color: var(--text); font-size: 12px; font-weight: 600; }
  .bg-head input { accent-color: var(--accent); }
  .bg-desc { margin: 5px 0 2px; font-size: 12px; }
  .bg-body { max-height: 0; overflow: hidden; transition: max-height .2s ease, opacity .15s; opacity: .5; }
  .bg-tool.on .bg-body { max-height: 460px; opacity: 1; margin-top: 4px; }
  .bg-tool.on { border-color: var(--accent); }
  /* Radio-style mode chooser (replaces the cryptic Edges/Everywhere toggle) */
  .bg-modes { display:flex; flex-direction:column; gap:6px; margin-top:9px; }
  .bg-modes label {
    display:flex; gap:8px; align-items:flex-start; cursor:pointer;
    font-size:12px; color:var(--text); line-height:1.3;
  }
  .bg-modes input { accent-color: var(--accent); margin-top:1px; flex:none; }
  .bg-modes .sub { display:block; color:var(--muted); font-size: 12px; }
  /* Color list: chips of colors that get turned transparent */
  .bg-colors-label { font-size: 12px; color:var(--muted); margin:10px 0 5px; }
  .bg-chips { display:flex; flex-wrap:wrap; gap:6px; }
  .bg-chip {
    display:flex; align-items:center; gap:6px; padding:3px 5px 3px 3px;
    background:var(--bg); border:1px solid var(--line); border-radius: 2px; font-size: 12px;
  }
  .bg-chip .dot {
    width:16px; height:16px; border-radius:4px; border:1px solid rgba(255,255,255,.15); flex:none;
  }
  .bg-chip .hex { color:var(--muted); font-family: var(--sans); font-size: 12px; }
  .bg-chip button {
    border:none; background:none; color:var(--muted); cursor:pointer; font-size:14px;
    line-height:1; padding:0 2px; border-radius:4px;
  }
  .bg-chip button:hover { color:var(--bad); }
  .bg-chip-add {
    display:flex; align-items:center; gap:5px; padding:3px 8px;
    border:1px dashed var(--line); border-radius: 2px; cursor:pointer;
    background:none; color:var(--muted); font-size: 12px; font-weight:600;
  }
  .bg-chip-add:hover { border-color: var(--accent); color: var(--text); }
  .bg-chip-add.armed { border-color: var(--accent); border-style:solid; background: var(--accent); color:var(--on-accent); }
  .bg-chips-empty { font-size: 12px; color:var(--muted); font-style:italic; }
  .pane.picking { cursor: crosshair; }
  .pane.picking::after {
    content:'click the background color'; position:absolute; top:8px; left:50%; transform:translateX(-50%);
    background: var(--accent); color:var(--on-accent); font-size: 12px; font-weight:700; padding:3px 10px; border-radius: 2px; z-index:3;
  }

  /* color-count pills in status */
  .status .pill {
    display:inline-block; background:var(--bg); border:1px solid var(--line);
    border-radius: 2px; padding:1px 7px; margin-left:6px; font-size: 12px; color:var(--muted);
  }
  .status .pill.warn { border-color: var(--bad); color: var(--bad); }
  .status .pill b { color: var(--text); }

  .group-title {
    font-size: 12px; text-transform: uppercase; letter-spacing: .08em;
    color: var(--muted); margin: 18px 4px 7px;
    display: flex; align-items: baseline; justify-content: space-between; gap: 8px;
    border-bottom: 1px solid var(--line); padding-bottom: 5px;
    transition: opacity .15s;
  }
  .group-title:first-child { margin-top: 6px; }
  .group-title .group-note {
    text-transform: none; letter-spacing: 0; font-size: 12px;
    color: var(--muted); font-weight: 400;
  }
  .group-title.dim { opacity: .4; }

  .ctrl {
    background: var(--panel2);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 10px 12px;
    margin-bottom: 8px;
  }
  .ctrl-head {
    display: flex; align-items: baseline; justify-content: space-between; gap: 8px;
  }
  .ctrl-head label { font-weight: 600; font-size: 12px; }
  .ctrl-head .val {
    font-variant-numeric: tabular-nums;
    color: var(--accent);
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 2px;
    padding: 1px 8px;
    font-size: 12px;
    min-width: 42px; text-align: center;
  }
  .desc { color: var(--muted); font-size: 12px; margin: 4px 0 8px; }
  /* Descriptions/hints/sub-labels are HIDDEN by default (no layout shift, no
     hover jumpiness). The "Explain" toggle adds body.explain to reveal them all
     at once. Labels, values and sliders are always visible. */
  .ctrl .desc, .ctrl .hint,
  .tool-btn .t-sub, .group-title .group-note, .colors-tip { display: none; }
  body.explain .ctrl .desc,
  body.explain .ctrl .hint,
  body.explain .tool-btn .t-sub,
  body.explain .group-title .group-note,
  body.explain .colors-tip { display: block; }
  body.explain .group-title .group-note { display: inline; }
  /* Compact control padding when explanations are hidden. */
  .ctrl { padding: 8px 12px; }
  body.explain .ctrl { padding: 10px 12px; }
  .tool-btn { padding: 7px 10px; }
  /* A small toggle to turn tidy mode off if someone wants all the help text. */
  .tidy-toggle { font:12px system-ui; color:var(--muted); cursor:pointer; user-select:none;
    display:flex; align-items:center; gap:5px; }
  .tidy-toggle input { accent-color: var(--accent); }
  input[type=range] {
    -webkit-appearance: none; appearance: none;
    width: 100%; height: 4px; border-radius: 4px;
    background: var(--line); outline: none; margin: 2px 0;
  }
  input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none;
    width: 16px; height: 16px; border-radius: 50%;
    background: var(--accent); cursor: pointer;
    border: 2px solid var(--bg); box-shadow: 0 0 0 1px var(--accent);
  }
  input[type=range]:disabled { opacity: .4; }
  input[type=range]:disabled::-webkit-slider-thumb { background: var(--muted); box-shadow:none; }

  .seg {
    display: flex; gap: 4px; background:var(--bg); padding:3px; border-radius: 2px;
    border:1px solid var(--line);
  }
  .seg button {
    flex:1; border:0; background:transparent; color:var(--muted);
    padding:5px 6px; border-radius: 2px; cursor:pointer; font-size:12px; font-weight:600;
    transition: background .12s, color .12s;
  }
  .seg button.active { background: var(--accent); color:var(--on-accent); }
  .seg button:hover:not(.active) { color: var(--text); }

  .ctrl.disabled { opacity: .45; pointer-events: none; }

  /* vim: currently selected control */
  .ctrl.selected {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent), 0 0 12px -2px var(--accent);
  }
  .ctrl.selected::before {
    content: '';
    position: absolute; left: -1px; top: 8px; bottom: 8px; width: 3px;
    background: var(--accent); border-radius: 3px;
  }
  .ctrl { position: relative; }

  /* Keyboard nav: a button-GROUP is one nav stop. The group gets a soft ring;
     the item cursor (h/l) highlights the specific button inside. */
  .nav-group.selected { box-shadow: 0 0 0 2px var(--accent2); border-radius: 2px; }
  .nav-group.selected .nav-item.item-cursor {
    box-shadow: 0 0 0 2px var(--accent), 0 0 12px -2px var(--accent) !important;
    border-color: var(--accent) !important; position: relative; z-index: 1;
  }
  .tool-btn.item-cursor { outline: 2px solid var(--accent); outline-offset: 0; }

  /* keybinding help overlay */
  .help-overlay {
    position: fixed; inset: 0; z-index: 50;
    background: rgba(8,10,14,.72); backdrop-filter: blur(3px);
    display: none; align-items: center; justify-content: center;
  }
  .help-overlay.show { display: flex; }
  .help-card {
    background: var(--panel); border: 1px solid var(--line); border-radius: 2px;
    padding: 22px 26px; width: min(560px, 92vw); max-height: 86vh; overflow:auto;
    box-shadow: 0 24px 60px -12px #000;
  }
  .help-card h2 { margin: 0 0 4px; font-size: 16px; }
  .help-card p.sub { margin: 0 0 16px; color: var(--muted); font-size: 12px; }
  .help-grid { display: grid; grid-template-columns: auto 1fr; gap: 7px 16px; align-items: baseline; }
  .help-grid kbd {
    font: 12px var(--sans); background: var(--bg); border: 1px solid var(--line);
    border-bottom-width: 2px; border-radius: 2px; padding: 2px 7px; white-space: nowrap;
    color: var(--accent);
  }
  .help-grid span { font-size: 12px; color: var(--text); }
  .help-card .hgroup { grid-column: 1 / -1; margin-top: 12px; color: var(--muted);
    font-size: 12px; text-transform: uppercase; letter-spacing: .07em; }
  .help-card .close-hint { margin-top: 18px; color: var(--muted); font-size: 12px; text-align:center; }

  .vim-badge {
    font: 12px var(--sans); color: var(--muted);
    border: 1px solid var(--line); border-radius: 2px; padding: 2px 7px; cursor: pointer;
  }
  .vim-badge:hover { border-color: var(--accent); color: var(--text); }

  /* ---------- Main / preview ---------- */
  main { display: flex; flex-direction: column; min-width: 0; min-height: 0; }
  .topbar {
    height: 52px; flex: none;
    border-bottom: 1px solid var(--line);
    display: flex; align-items: center; gap: 10px; padding: 0 16px;
    background: var(--panel);
  }
  .btn {
    border: 1px solid var(--line); background: var(--panel2); color: var(--text);
    padding: 7px 13px; border-radius: 2px; cursor: pointer; font-size: 12px; font-weight: 600;
    display: inline-flex; align-items:center; gap:7px;
  }
  .btn:hover { border-color: var(--accent); }
  .btn.primary { background: var(--text); border:0; color:var(--on-accent); }
  .btn:disabled { opacity:.5; cursor: not-allowed; }
  .spacer { flex: 1; }
  .status { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
  .status b { color: var(--text); font-weight:600; }
  .dot { display:inline-block; width:8px; height:8px; border-radius:50%; background:var(--muted); margin-right:6px; vertical-align: middle;}
  .dot.busy { background: var(--accent); animation: pulse 1s infinite; }
  .dot.ok { background: var(--good); }
  .dot.err { background: var(--bad); }
  @keyframes pulse { 0%,100%{opacity:.3} 50%{opacity:1} }

  .toggle {
    display:flex; align-items:center; gap:6px; font-size:12px; color:var(--muted); cursor:pointer;
    user-select:none;
  }
  .toggle input { accent-color: var(--accent); }

  .stage {
    flex: 1; min-height: 0; display: grid; gap: 1px;
    grid-template-columns: 1fr 1fr; background: var(--line);
  }
  .stage.single { grid-template-columns: 1fr; }
  .pane { position: relative; overflow: hidden; background:
      linear-gradient(45deg, var(--checker) 25%, transparent 25%) 0 0/20px 20px,
      linear-gradient(-45deg, var(--checker) 25%, transparent 25%) 0 0/20px 20px,
      linear-gradient(45deg, transparent 75%, var(--checker) 75%) 0 0/20px 20px,
      linear-gradient(-45deg, transparent 75%, var(--checker) 75%) 0 0/20px 20px,
      var(--paper);
    display:flex; align-items:center; justify-content:center;
  }
  .pane .tag {
    position:absolute; top:8px; left:8px; z-index:2;
    background: rgba(0,0,0,.55); color:#fff; font-size: 12px; font-weight:600;
    padding:3px 8px; border-radius: 2px; backdrop-filter: blur(4px);
  }
  .pane .content { position:relative; width:100%; height:100%; overflow:hidden; display:flex; align-items:center; justify-content:center; padding:16px; user-select:none;}
  /* In edit mode, let the SVG (and its anchor grab-zones) overflow .content so
     anchors near the edges stay clickable when zoomed. The parent .pane still
     has overflow:hidden, so nothing visually leaks outside the pane. */
  .pane.editing .content { overflow: visible; }
  .pane img, .pane svg { max-width:100%; max-height:100%; object-fit:contain; }
  .pane .content > * { transition: transform .05s linear; transform-origin: center; }
  /* When zoomed, the media is absolutely centered so overflow:hidden reliably
     clips it (a centered flex child that overflows can leak out otherwise). */
  .pane .content.zoomed { display:block; }
  .pane .content.zoomed > .zoomel {
    position:absolute; left:50%; top:50%; max-width:none; max-height:none;
  }
  /* Highlight the pane you're inspecting in keyboard view mode. */
  .pane.view-active { outline: 2px solid var(--accent); outline-offset: -2px; }
  .pane.view-active .tag { background: var(--accent); color:var(--on-accent); }

  /* Crosshair color picker overlay (in the PNG pane) */
  #pickCrosshair { position:absolute; inset:0; z-index:5; pointer-events:none; display:none; }
  #pickCrosshair .ch-h { position:absolute; left:0; right:0; top:var(--y); height:1px; background:rgba(255,255,255,.6); }
  #pickCrosshair .ch-v { position:absolute; top:0; bottom:0; left:var(--x); width:1px; background:rgba(255,255,255,.6); }
  /* Fill crosshair on the SVG pane (keyboard fill). */
  .fill-cursor { position:absolute; inset:0; z-index:7; pointer-events:none; display:none; }
  .fill-cursor .fc-h { position:absolute; left:0; right:0; top:var(--y); height:1px; background:rgba(255,255,255,.55); }
  .fill-cursor .fc-v { position:absolute; top:0; bottom:0; left:var(--x); width:1px; background:rgba(255,255,255,.55); }
  .fill-cursor .fc-dot { position:absolute; left:var(--x); top:var(--y); width:16px; height:16px; transform:translate(-50%,-50%); border:2px solid #fff; border-radius:50%; box-shadow:0 0 0 1px rgba(0,0,0,.7); }
  #pickCrosshair .ch-dot {
    position:absolute; left:var(--x); top:var(--y); width:10px; height:10px; transform:translate(-50%,-50%);
    border:2px solid #fff; border-radius:50%; box-shadow:0 0 0 1px rgba(0,0,0,.6);
  }
  #pickCrosshair .ch-swatch {
    position:absolute; left:var(--x); top:var(--y); transform:translate(14px, 14px);
    min-width:64px; padding:3px 6px; font:600 12px/1 var(--sans); color:#fff;
    background:#111; border:1px solid rgba(255,255,255,.3); border-radius: 2px;
    display:flex; align-items:center; gap:6px;
  }

  /* ---- SVG node editor overlay ---- */
  /* Handles live INSIDE the SVG (viewBox space) so they pan/zoom with the art.
     vector-effect keeps their stroke crisp; we counter-scale radius in JS. */
  .editor-layer { pointer-events:none; }
  .editor-layer .ed-seg { fill:none; stroke:var(--accent); stroke-opacity:.9; vector-effect:non-scaling-stroke; }
  .editor-layer .ed-handle-line { stroke:var(--accent2); stroke-opacity:.7; vector-effect:non-scaling-stroke; }
  /* Invisible magnetic grab zone: large hit target, no fill/stroke, catches the
     mouse so the small visible dot is still easy to grab near. */
  .editor-layer .ed-grab { fill:transparent; pointer-events:all; cursor:grab; }
  .editor-layer .ed-anchor {
    fill:var(--bg); stroke:var(--accent); stroke-width:1.5; vector-effect:non-scaling-stroke;
    pointer-events:none;   /* the .ed-grab zone under it handles hits */
  }
  .editor-layer .ed-anchor.sel { fill:var(--accent); }
  .editor-layer .ed-anchor.near { stroke:var(--good); stroke-width:2.5; }
  .editor-layer .ed-ctrl {
    fill:var(--accent2); stroke:var(--bg); stroke-width:1.5; vector-effect:non-scaling-stroke;
    pointer-events:none;
  }
  /* The whole SVG pane in edit mode gets a tinted ring + crosshair cursor. */
  .pane.editing { outline:2px solid var(--accent2); outline-offset:-2px; }
  .pane.editing .content { cursor:crosshair; }
  .pane.editing .tag { background:var(--accent2); color:var(--on-accent); }

  /* Path-search (easymotion) labels floating over each path centroid. */
  .path-labels { position:absolute; inset:0; z-index:6; pointer-events:none; }
  .path-label {
    position:absolute; transform:translate(-50%,-50%);
    font:700 12px/1 var(--sans); color:var(--on-accent); background:var(--good);
    border:1px solid var(--on-accent); border-radius:4px; padding:1px 4px; box-shadow:0 1px 4px rgba(0,0,0,.5);
  }
  .path-label.dim { opacity:.35; }
  .path-label b { color:var(--bad); }

  /* Edit-mode heads-up hint bar at the bottom of the SVG pane. */
  .edit-hud {
    position:absolute; left:8px; bottom:8px; z-index:6; pointer-events:none;
    background:rgba(8,10,14,.82); border:1px solid var(--line); border-radius: 2px;
    padding:6px 10px; font-size: 12px; color:var(--text); max-width:70%;
    display:none;
  }
  .edit-hud.show { display:block; }
  .edit-hud kbd { font:12px var(--sans); color:var(--accent2); background:var(--bg);
    border:1px solid var(--line); border-radius:4px; padding:1px 5px; margin:0 1px; }
  .edit-hud .sel-info { color:var(--muted); }

  /* Fill toolbar: floats on the SVG pane when the Fill tool is active. Lets you
     pick any color (native input), see the current fill, and grab from a shape. */
  .fill-bar {
    position:absolute; top:8px; right:8px; z-index:7; display:none;
    align-items:center; gap:8px; background:rgba(8,10,14,.9);
    border:1px solid var(--accent); border-radius: 2px; padding:6px 9px;
  }
  .fill-bar.show { display:flex; }
  .fill-bar label { font-size: 12px; color:var(--muted); }
  .fill-bar .fb-swatch {
    width:24px; height:24px; border-radius: 2px; border:1px solid rgba(255,255,255,.3);
    cursor:pointer; position:relative; overflow:hidden;
  }
  .fill-bar input[type=color] {
    position:absolute; inset:0; opacity:0; cursor:pointer; width:100%; height:100%; border:none;
  }
  .fill-bar .fb-hex { font:12px var(--sans); color:var(--text); }
  .fill-bar .fb-hint { font-size: 12px; color:var(--muted); }

  /* Lasso overlay on the PNG pane. */
  .lasso-svg { position:absolute; inset:0; z-index:6; pointer-events:none; }
  .lasso-svg path { fill:rgba(255,107,107,.18); stroke:var(--bad); stroke-width:1.5;
    stroke-dasharray:5 4; vector-effect:non-scaling-stroke; }
  .lasso-svg circle { fill:var(--bad); }
  .pane.lassoing .content { cursor:crosshair; }
  .pane.lassoing { outline:2px solid var(--bad); outline-offset:-2px; }

  /* Fill/eyedrop cursor affordances on panes. */
  .pane.filling .content { cursor:cell; }
  .pane.eyedropping .content { cursor:crosshair; }
  /* Small swatch shown next to Fill/Eyedrop tool state in status. */
  .swatch-inline { display:inline-block; width:11px; height:11px; border-radius:3px;
    border:1px solid rgba(255,255,255,.3); vertical-align:middle; margin:0 3px; }

  .empty {
    color: var(--muted); text-align:center; padding: 24px; max-width: 320px;
  }
  .empty .big { font-size: 15px; color: var(--text); margin-bottom:6px; font-weight:600;}
  .drop-hint {
    border: 2px dashed var(--line); border-radius: 2px; padding: 28px 24px;
    transition: border-color .15s, background .15s;
  }
  body.dragging .drop-hint { border-color: var(--accent); background: rgba(91,157,255,.06); }

  .err-box {
    color: var(--bad); font-family: var(--sans); font-size: 12px;
    white-space: pre-wrap; text-align:left; max-width: 90%; max-height: 90%; overflow:auto;
  }
  input[type=file] { display:none; }

  .zoombar { position:absolute; bottom:8px; right:8px; z-index:2; display:flex; gap:4px; }
  .zoombar button {
    width:26px;height:26px;border-radius: 2px;border:1px solid var(--line);
    background:rgba(0,0,0,.55); color:#fff; cursor:pointer; font-size:14px; line-height:1;
    display:flex;align-items:center;justify-content:center;
  }
  .zoombar button:hover{ border-color: var(--accent); }
  :focus-visible { outline:2px solid var(--accent); outline-offset:3px; }
  .key-hint { padding:10px 14px; border-top:1px solid var(--line); color:var(--muted); font-size: 12px; }
  .control-search { padding:10px 14px; border-bottom:1px solid var(--line); }
  .control-search[hidden] { display:none; }
  .control-search input { width:100%; padding:8px; border:1px solid var(--accent); border-radius: 2px; background:var(--bg); color:var(--text); }
  .control-search small { display:block; color:var(--muted); padding-top:5px; }
  .preview-white { fill:#fff !important; }
  .color-highlight { stroke:#fff !important; stroke-width:2px !important; filter:drop-shadow(0 0 3px #fff); }
  .help-card { overflow-y:auto; max-height:85vh; }
  .topbar { flex-wrap:wrap; height:auto; min-height:52px; padding-top:8px; padding-bottom:8px; }
  main { min-width:0; }
  /* Shared visual language with lsj.sh: quiet paper, serif titles, neutral ink accents. */
  body { grid-template-columns:320px minmax(0,1fr); font-family:var(--sans); }
  button, input { font-family:var(--sans); }
  .brand { padding:24px 20px; min-height:108px; gap:12px; }
  .brand .logo { display:none; }
  .brand h1 { font:400 32px/1.15 var(--serif); letter-spacing:-.5px; }
  .brand small { font-size:12px; margin-top:8px; }
  .brand .vim-badge { align-self:flex-start; margin-top:4px; }
  .brand a { color:inherit; text-underline-offset:3px; }
  .controls { padding:16px 20px 24px; }
  .group-title { margin:28px 0 12px; padding-bottom:10px; font-size:12px; text-transform:none; letter-spacing:0; font-weight:600; }
  .group-title:first-child { margin-top:0; }
  .ctrl { background:transparent; border-color:transparent; border-bottom-color:var(--line); padding:12px 0; margin:0; }
  .ctrl.selected { border-color:var(--accent); box-shadow:none; }
  .ctrl-head label { font-weight:500; }
  .ctrl-head .val { background:var(--paper); color:var(--text); border:0; padding:2px 6px; }
  .tool-btn, .btn, .preset-row button { background:transparent; font-weight:500; padding:9px 10px; }
  .tool-btn .t-name { font-weight:500; }
  .tool-btn .t-key { font-family:var(--sans); }
  .btn.primary { background:var(--text); color:var(--bg); border:1px solid var(--text); }
  .tool-btn.active, .preset-row button.active, .seg button.active { background:var(--panel2); color:var(--text); border-color:var(--accent); }
  .tool-btn.active .t-sub, .tool-btn.active .t-key { color:var(--muted); border-color:var(--line); }
  .seg button.active { box-shadow:inset 0 -2px var(--accent); }
  .nav-group.selected, .nav-group.selected .nav-item.item-cursor { box-shadow:0 0 0 1px var(--accent) !important; }
  aside.view-active { box-shadow:none; }
  .topbar { min-height:108px; padding:24px 28px; gap:16px; background:var(--bg); }
  .topbar .status { flex-basis:100%; order:2; }
  .mode-pill { font-weight:500; font-family:var(--sans); letter-spacing:0; }
  .stage { margin:24px; gap:20px; background:transparent; }
  .pane { border:12px solid var(--paper); border-bottom-width:52px; box-shadow:0 0 0 1px var(--line), 0 8px 24px #00000008; }
  .pane .tag { top:12px; left:12px; background:var(--paper); color:var(--muted); border:1px solid var(--line); backdrop-filter:none; padding:6px 10px; font-weight:400; }
  .pane.view-active .tag, .pane.editing .tag { color:var(--text); background:var(--paper); border-color:var(--accent); }
  .zoombar { right:10px; bottom:10px; }
  .zoombar button { width:32px; height:32px; background:var(--paper); color:var(--text); }
  .empty .big { font:400 24px/1.3 var(--serif); margin-bottom:16px; }
  .drop-hint { border-width:1px; padding:28px 20px; }
  .help-card h2 { font:400 32px/1.2 var(--serif); }
  .help-card { padding:32px; }
  .edit-hud, .fill-bar { background:var(--paper); }
  .swatch .cnt { background:var(--paper); }
  .key-hint { padding:16px 20px; }
  .theme-toggle { background:transparent; color:var(--text); border:1px solid var(--line); padding:6px 10px; font-size:12px; cursor:pointer; }
  @media (max-width:1050px) {
    body { grid-template-columns:280px minmax(0,1fr); }
    .stage { margin:16px; gap:12px; }
    .topbar { padding:16px; gap:12px; }
    .brand h1 { font-size:24px; }
  }
  @media (max-width:700px) {
    html, body { height:auto; min-height:100%; }
    body { display:flex; flex-direction:column; overflow:auto; }
    main { order:1; }
    aside { order:2; border-right:0; border-top:1px solid var(--line); }
    .brand { min-height:0; }
    .controls { overflow:visible; }
    .stage { flex:none; height:400px; }
    .topbar { min-height:0; }
    .pane { border-width:8px; border-bottom-width:24px; }
    .pane .tag { top:4px; left:4px; padding:4px 6px; }
    .pane .content { padding:8px; }
    .empty { padding:12px; }
    .drop-hint { padding:16px 8px; }
    .empty .big { font-size:24px; }
  }
  @media (max-width:450px) {
    .stage { grid-template-columns:1fr; height:700px; }
    .stage.single { height:380px; }
  }
  @media (prefers-reduced-motion:reduce) { *, *::before, *::after { animation:none !important; transition:none !important; } }

.privacy-note { padding: 12px 20px; border-top: 1px solid var(--border); font-size:12px; line-height:1.6; color:var(--muted); }
.privacy-note a { color:inherit; text-underline-offset:3px; }
.local-limit { font-size:12px; margin-top:16px; }
#cancelTask[hidden] { display:none; }

#chooseImage { width:auto; margin:16px 0; padding:10px 20px; }
.shape-toolbar { display:none; position:relative; flex:0 0 auto; width:100%; z-index:12; gap:6px; flex-wrap:wrap; padding:8px; background:var(--bg); border:1px solid var(--line); }
.pane.editing { flex-direction:column; }
.pane.editing .tag { display:none; }
.pane.editing .content { flex:1; min-height:0; overflow:hidden; }
.pane.editing .shape-toolbar { display:flex; }
.shape-toolbar button { min-height:36px; padding:6px 10px; cursor:pointer; background:var(--panel); color:var(--text); border:1px solid var(--line); font:12px var(--sans); }
.shape-toolbar button:not(:disabled):hover { background:var(--panel2); }
.path-labels .path-label { pointer-events:auto; min-width:26px; min-height:26px; cursor:pointer; background:var(--text); color:var(--bg); border:1px solid var(--muted); }
.ed-shape-outline { fill:none!important; stroke:var(--accent2)!important; stroke-width:2; vector-effect:non-scaling-stroke; pointer-events:none; }
@media(max-width:650px) { .shape-toolbar button { font-size:12px; min-height:40px; } }

.shape-toolbar button:disabled { opacity:.4; cursor:default; }
.shape-toolbar button:focus-visible, .path-label:focus-visible { outline:2px solid var(--text); outline-offset:3px; }
.pane.editing .edit-hud { background:var(--panel); max-width:calc(100% - 100px); }

.pane.editing .content { cursor:grab; }
/* Direct manipulation must use the same transform for drawing and hit testing. */
.pane.editing .content > .zoomel { transition:none; }