.paint-app {
  overflow-x: auto;
  --pa-accent: var(--primary, #2563eb);
  --pa-accent-hover: var(--primary-hover, var(--primary, #2563eb));
  --pa-surface: var(--bg-card, var(--bg, #ffffff));
  --pa-chrome: var(--bg-subtle, var(--bg-card, var(--bg, #f3f4f6)));
  --pa-work: var(--bg-subtle, var(--bg, #f3f4f6));
  --pa-line: var(--line, var(--border, #e5e7eb));
  --pa-text: var(--text, #333);
  --pa-muted: var(--muted, #6b7280);
  --pa-input: var(--bg-input, var(--bg-card, #ffffff));
  --pa-btn: var(--bg-btn, #f3f4f6);
  --pa-r: var(--radius, 10px);
  --pa-rs: var(--radius-sm, 6px);

  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  background: var(--pa-surface);
  color: var(--pa-text);
  border: 1px solid var(--pa-line);
  border-radius: var(--pa-r);
  overflow: hidden;
  font-size: 13px;
  line-height: 1.4;
}

.paint-app *, .paint-app *::before, .paint-app *::after { box-sizing: border-box; }

/* ---- */
.paint-tabs {
  display: flex;
  align-items: stretch;
  gap: 2px;
  padding: 6px 8px 0;
  background: var(--pa-chrome);
  border-bottom: 1px solid var(--pa-line);
  flex-wrap: wrap;
}
.paint-tab {
  appearance: none;
  border: 1px solid transparent;
  border-bottom: none;
  background: transparent;
  color: var(--pa-muted);
  padding: 6px 14px;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  border-radius: var(--pa-rs) var(--pa-rs) 0 0;
}
.paint-tab:hover { color: var(--pa-text); }
.paint-tab.active {
  background: var(--pa-surface);
  color: var(--pa-accent);
  border-color: var(--pa-line);
  font-weight: 600;
}
.paint-tab:focus-visible { outline: 2px solid var(--pa-accent); outline-offset: -2px; }

/* ---- */
.paint-filemenu {
  position: absolute;
  min-width: 190px;
  padding: 5px;
  background: var(--pa-surface);
  border: 1px solid var(--pa-line);
  border-radius: var(--pa-rs);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.14);
  display: flex;
  flex-direction: column;
}
.paint-filemenu[hidden] { display: none; }
.paint-mi {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--pa-text);
  text-align: left;
  padding: 7px 10px;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  border-radius: var(--pa-rs);
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.paint-mi:hover { background: var(--pa-btn); }
.paint-mi-sep { height: 1px; margin: 4px 6px; background: var(--pa-line); }

/* ---- */
.paint-ribbon {
  background: var(--pa-chrome);
  border-bottom: 1px solid var(--pa-line);
  overflow-x:auto;
  overflow-y: hidden;
}
.paint-panel { display: flex; align-items: stretch; gap: 0; padding: 6px 4px; min-height: 92px; flex-wrap: wrap; }
.paint-panel[hidden] { display: none; }
.paint-group {
  display: flex;
  flex-direction: column;
  padding: 2px 8px;
  border-right: 1px solid var(--pa-line);
  min-width: 0;
}
.paint-group:last-child { border-right: 0; }
.paint-gtitle {
  font-size: 11px;
  color: var(--pa-muted);
  text-align: center;
  margin-top: auto;
  padding-top: 4px;
  white-space: nowrap;
}
.paint-gbody { display: flex; align-items: flex-start; gap: 3px; flex-wrap: wrap; }

/* ---- */
.paint-btn {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--pa-text);
  border-radius: var(--pa-rs);
  padding: 5px 8px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 46px;
  line-height: 1.2;
}
.paint-btn:hover { background: var(--pa-btn); border-color: var(--pa-line); }
.paint-btn.active {
  background: var(--pa-accent);
  border-color: var(--pa-accent);
  color: #ffffff;
}
.paint-btn:focus-visible { outline: 2px solid var(--pa-accent); outline-offset: 1px; }
.paint-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.paint-btn-ico { font-size: 16px; line-height: 1; }
.paint-btn-label { white-space: nowrap; font-size: 11px; }

/* ---- */
.paint-shape-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; max-width: 250px; }
.paint-shape-btn {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--pa-text);
  border-radius: var(--pa-rs);
  width: 30px;
  height: 26px;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.paint-shape-btn:hover { background: var(--pa-btn); }
.paint-shape-btn.active { background: var(--pa-accent); color: #ffffff; }
.paint-shape-btn:focus-visible { outline: 2px solid var(--pa-accent); }

/* ---- */
.paint-brush-list { display: flex; flex-direction: column; gap: 2px; max-height: 84px; overflow-y: auto; }
.paint-brush-btn {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--pa-text);
  border-radius: var(--pa-rs);
  padding: 3px 8px;
  font-size: 12px;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}
.paint-brush-btn:hover { background: var(--pa-btn); }
.paint-brush-btn.active { background: var(--pa-accent); color: #ffffff; }
.paint-brush-sample { width: 34px; height: 8px; border-radius: var(--pa-rs); background: var(--pa-text); opacity: 0.75; flex: none; }

/* ---- */
.paint-size-btn {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  border-radius: var(--pa-rs);
  padding: 4px 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  color: var(--pa-text);
  font-family: inherit;
}
.paint-size-btn:hover { background: var(--pa-btn); }
.paint-size-btn.active { background: var(--pa-accent); color: #ffffff; }
.paint-size-bar { display: block; width: 30px; border-radius: var(--pa-rs); background: var(--pa-text); }
.paint-size-btn.active .paint-size-bar { background: #ffffff; }
.paint-size-label { font-size: 11px; }

/* ---- */
.paint-colors { display: flex; flex-direction: column; gap: 4px; }
.paint-color-top { display: flex; align-items: center; gap: 6px; }
.paint-cslot {
  width: 34px;
  height: 26px;
  border-radius: var(--pa-rs);
  border: 2px solid var(--pa-line);
  cursor: pointer;
  padding: 0;
  appearance: none;
}
.paint-cslot.active { border-color: var(--pa-accent); box-shadow: 0 0 0 2px var(--pa-accent); }
.paint-palette { display: grid; grid-template-columns: repeat(10, 1fr); gap: 2px; max-width: 210px; }
.paint-swatch {
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: var(--pa-rs);
  border: 1px solid var(--pa-line);
  cursor: pointer;
  padding: 0;
}
.paint-swatch:hover { transform: scale(1.1); }
.paint-swatch:focus-visible { outline: 2px solid var(--pa-accent); }

/* ---- */
.paint-checkrow { display: flex; flex-direction: column; gap: 3px; }
.paint-checkbtn {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--pa-text);
  border-radius: var(--pa-rs);
  padding: 3px 8px;
  font-size: 12px;
  font-family: inherit;
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 6px;
}
.paint-checkbtn:hover { background: var(--pa-btn); }
.paint-checkbtn.on { background: var(--pa-accent); color: #ffffff; }
.paint-checkbox { font-size: 12px; }

/* ---- */
.paint-workspace {
  position: relative;
  flex: 1;
  min-height: 320px;
  display: grid;
  grid-template-columns: 18px 1fr;
  grid-template-rows: 18px 1fr;
  background: var(--pa-work);
  border-bottom: 1px solid var(--pa-line);
}
.paint-ruler-corner { background: var(--pa-chrome); border-right: 1px solid var(--pa-line); border-bottom: 1px solid var(--pa-line); }
.paint-ruler { display: block; background: var(--pa-chrome); }
.paint-ruler-h { grid-column: 2; grid-row: 1; border-bottom: 1px solid var(--pa-line); width: 100%; height: 100%; }
.paint-ruler-v { grid-column: 1; grid-row: 2; border-right: 1px solid var(--pa-line); width: 100%; height: 100%; }
.paint-workspace.no-ruler { grid-template-columns: 0 1fr; grid-template-rows: 0 1fr; }
.paint-workspace.no-ruler .paint-ruler, .paint-workspace.no-ruler .paint-ruler-corner { display: none; }

.paint-scroll { grid-column: 2; grid-row: 2; overflow: auto; position: relative; padding: 14px; }
.paint-stack { position: relative; width: max-content; height: max-content; }
#paint-main {
  display: block;
  background: #ffffff;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
  border: 1px solid var(--pa-line);
  touch-action: none;
}
#paint-overlay { position: absolute; left: 0; top: 0; pointer-events: none; }
.paint-textbox {
  position: absolute;
  border: 1px dashed var(--pa-accent);
  background: transparent;
  color: var(--pa-text);
  font-family: inherit;
  resize: none;
  overflow: hidden;
  padding: 2px 4px;
  margin: 0;
  outline: none;
  line-height: 1.25;
}
.paint-textbox[hidden] { display: none; }

/* ---- */
.paint-status {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 4px;
  min-height: 24px;
  background: var(--pa-chrome);
  border-top: 1px solid var(--pa-line);
  font-size: 11px;
  color: var(--pa-muted);
  flex-wrap: wrap;
}
.paint-status[hidden] { display: none; }
.paint-status-item { padding: 3px 10px; border-right: 1px solid var(--pa-line); white-space: nowrap; }
.paint-status-item:first-child { flex: 1; min-width: 90px; }
.paint-status-item:last-child { border-right: 0; }

/* ---- */
.paint-modal {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.paint-modal[hidden] { display: none; }
.paint-modal-box {
  background: var(--pa-surface);
  color: var(--pa-text);
  border: 1px solid var(--pa-line);
  border-radius: var(--pa-r);
  padding: 16px;
  min-width: 260px;
  max-width: 340px;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.24);
}
.paint-modal-title { margin: 0; font-size: 15px; font-weight: 600; }
.paint-field { display: flex; align-items: center; gap: 8px; font-size: 12px; }
.paint-field > span { min-width: 62px; color: var(--pa-muted); }
.paint-field input[type="number"], .paint-field input[type="text"] {
  flex: 1;
  min-width: 0;
  padding: 5px 8px;
  border: 1px solid var(--pa-line);
  border-radius: var(--pa-rs);
  background: var(--pa-input);
  color: var(--pa-text);
  font-family: inherit;
  font-size: 12px;
}
.paint-check { display: flex; align-items: center; gap: 6px; font-size: 12px; cursor: pointer; }
.paint-radio-row { display: flex; gap: 14px; }
.paint-modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 2px; }
.paint-modal-actions .paint-btn { flex-direction: row; min-width: 0; padding: 6px 14px; font-size: 12px; }
.paint-btn-primary { background: var(--pa-accent); border-color: var(--pa-accent); color: #ffffff; }
.paint-btn-primary:hover { background: var(--pa-accent-hover); border-color: var(--pa-accent-hover); }
.paint-apply-row { display: flex; gap: 8px; }
.paint-apply-row .paint-btn { flex: 1; flex-direction: row; justify-content: center; }
.paint-color-preview {
  height: 46px;
  border-radius: var(--pa-rs);
  border: 1px solid var(--pa-line);
  background: #000000;
}

/* ---- */
.paint-app input[type="range"] {
  --pa-fill: 0%;
  appearance: none;
  -webkit-appearance: none;
  flex: 1;
  min-width: 0;
  height: 18px;
  background: transparent;
  cursor: pointer;
}
.paint-app input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: var(--pa-rs);
  background: linear-gradient(to right, var(--pa-accent) 0 var(--pa-fill), var(--pa-line) var(--pa-fill) 100%);
}
.paint-app input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  margin-top: -4px;
  border-radius: 50%;
  background: var(--pa-accent);
  border: 0;
}
.paint-app input[type="range"]::-webkit-slider-thumb:hover { background: var(--pa-accent-hover); }
.paint-app input[type="range"]::-moz-range-track { height: 6px; border-radius: var(--pa-rs); background: var(--pa-line); }
.paint-app input[type="range"]::-moz-range-progress { height: 6px; border-radius: var(--pa-rs); background: var(--pa-accent); }
.paint-app input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border: 0; border-radius: 50%; background: var(--pa-accent); }
.paint-app input[type="range"]:focus-visible { outline: 2px solid var(--pa-accent); outline-offset: 2px; }

/* ---- */
.paint-ribbon, .paint-scroll, .paint-brush-list, .paint-status {
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--pa-muted) 45%, var(--pa-surface)) transparent;
}
.paint-ribbon::-webkit-scrollbar, .paint-scroll::-webkit-scrollbar, .paint-brush-list::-webkit-scrollbar { width: 10px; height: 10px; }
.paint-ribbon::-webkit-scrollbar-track, .paint-scroll::-webkit-scrollbar-track, .paint-brush-list::-webkit-scrollbar-track { background: transparent; }
.paint-ribbon::-webkit-scrollbar-thumb, .paint-scroll::-webkit-scrollbar-thumb, .paint-brush-list::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--pa-muted) 45%, var(--pa-surface));
  border-radius: var(--pa-rs);
  border: 2px solid transparent;
  background-clip: padding-box;
}
.paint-ribbon::-webkit-scrollbar-thumb:hover, .paint-scroll::-webkit-scrollbar-thumb:hover { background: var(--pa-accent); background-clip: padding-box; }

/* ---- */
@media (max-width: 900px) {
  .paint-panel { flex-wrap: wrap; }
  .paint-group { border-right: 0; border-bottom: 1px solid var(--pa-line); }
}
@media (max-width: 560px) {
  .paint-btn { min-width: 40px; padding: 4px 5px; }
  .paint-btn-label { font-size: 10px; }
  .paint-shape-grid { grid-template-columns: repeat(5, 1fr); max-width: 170px; }
}