dialog.cutout-dialog {
  --cutout-paper: var(--paper, #fafafa);
  --cutout-ink: var(--ink, #000);
  --cutout-muted: var(--muted, #666);
  --cutout-line: var(--line, #dedede);
  position: fixed; inset: 0; width: 100%; height: 100dvh; max-width: none; max-height: none;
  margin: 0; padding: 0; border: 0; background: var(--cutout-paper); color: var(--cutout-ink);
  font-family: var(--font-ui, sans-serif); font-size: 14px; line-height: 1.7; overflow-y: auto; overscroll-behavior: contain;
}
dialog.cutout-dialog[open] { display: block; }
dialog.cutout-dialog form { position: static; inset: auto; }
.cutout-dialog :is(h2, p, ol) { margin: 0; }
.cutout-dialog :is(button, input) { font: inherit; color: inherit; }
.cutout-dialog :is(button, input, [tabindex]):focus-visible { outline: 2px solid var(--cutout-ink); outline-offset: 4px; }
.cutout-header { display: flex; align-items: start; justify-content: space-between; gap: 24px; padding: max(20px, env(safe-area-inset-top)) clamp(16px, 3vw, 48px) 20px; }
.cutout-eyebrow { color: var(--cutout-muted); font-size: 12px; }
.cutout-dialog .cutout-title { max-width: 950px; margin-top: 12px; font: 27px/1.5 var(--font-art, serif); overflow-wrap: anywhere; }
.cutout-close { flex: 0 0 auto; min-width: 44px; min-height: 44px; padding-left: 16px; white-space: nowrap; color: var(--cutout-muted); }
.cutout-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 320px); gap: clamp(24px, 4vw, 56px); align-items: start; padding: 0 clamp(16px, 3vw, 48px) max(48px, env(safe-area-inset-bottom)); }
.cutout-workspace { position: sticky; top: 12px; min-width: 0; }
.cutout-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 20px; margin-bottom: 12px; }
.cutout-button-group { display: flex; flex-wrap: wrap; gap: 20px; }
.cutout-mode { min-height: 44px; padding: 8px 0; border-bottom: 1px solid transparent; color: var(--cutout-muted); }
.cutout-mode[aria-pressed="true"] { color: var(--cutout-ink); border-bottom-color: currentColor; }
.cutout-zoom-label { display: flex; flex: 1 1 190px; max-width: 300px; gap: 12px; align-items: center; min-height: 44px; font-size: 13px; }
.cutout-zoom-label input { flex: 1; min-width: 50px; min-height: 44px; accent-color: var(--cutout-ink); }
.cutout-zoom-label output { min-width: 40px; text-align: right; font-variant-numeric: tabular-nums; }
.cutout-text-button { display: inline-flex; align-items: center; min-height: 44px; text-align: left; text-decoration: underline; text-underline-offset: 5px; text-decoration-thickness: 1px; }
.cutout-text-button:hover { color: var(--cutout-muted); }
.cutout-stage { height: min(65dvh, 800px); min-height: 280px; overflow: auto; border: 1px solid var(--cutout-line); overscroll-behavior: contain; background: var(--cutout-paper); }
.cutout-stage[data-mode="draw"], .cutout-stage[data-mode="repair"] { touch-action: none; }
.cutout-stage[data-mode="move"] { touch-action: pan-x pan-y; cursor: grab; }
.cutout-stage[data-mode="move"]:active { cursor: grabbing; }
.cutout-surface { display: flex; min-width: 100%; min-height: 100%; align-items: center; justify-content: center; }
.cutout-image-space { position: relative; flex: 0 0 auto; overflow: hidden; }
.cutout-image-space[data-background="checker"] { background-color: #fff; background-image: conic-gradient(#e8e8e8 25%, transparent 0 50%, #e8e8e8 0 75%, transparent 0); background-size: 20px 20px; }
.cutout-image-space[data-background="white"] { background: #fff; }
.cutout-image-space :is(img, canvas) { position: absolute; inset: 0; width: 100%; height: 100%; max-width: none; max-height: none; display: block; user-select: none; -webkit-user-drag: none; }
.cutout-overlay-canvas { cursor: crosshair; touch-action: none; }
.cutout-stage[data-mode="repair"] .cutout-overlay-canvas { cursor: default; }
.cutout-stage[data-mode="repair"] .cutout-overlay-canvas:active { cursor: grabbing; }
.cutout-stage[data-mode="move"] .cutout-overlay-canvas { pointer-events: none; }
.cutout-compare { display: flex; flex-wrap: wrap; gap: 4px 24px; padding-top: 8px; }
.cutout-canvas-hint { margin-top: 8px !important; font-size: 13px; color: var(--cutout-muted); line-height: 1.6; }
.cutout-controls { padding-top: 8px; min-width: 0; }
.cutout-intro { margin-bottom: 20px !important; }
.cutout-flat-notice { margin-bottom: 20px !important; padding-left: 12px; border-left: 2px solid currentColor; font-size: 13px; }
.cutout-contour-type { border-bottom: 1px solid var(--cutout-line); margin-bottom: 12px; }
.cutout-small { color: var(--cutout-muted); font-size: 13px; line-height: 1.65; }
.cutout-path-actions { display: flex; flex-wrap: wrap; gap: 4px 20px; margin: 8px 0 16px; }
.cutout-path-list { list-style: none; padding: 0; max-height: 220px; overflow-y: auto; }
.cutout-path-list li { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 44px; border-top: 1px solid var(--cutout-line); font-size: 13px; }
.cutout-remove-path { flex: 0 0 auto; min-height: 44px; min-width: 44px; color: var(--cutout-muted); text-decoration: underline; text-underline-offset: 4px; }
.cutout-setting-label { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 8px 12px; margin-top: 28px; font-size: 14px; }
.cutout-setting-label input { grid-column: 1; grid-row: 2; width: 100%; min-width: 0; min-height: 44px; accent-color: var(--cutout-ink); }
.cutout-setting-label output { grid-column: 2; grid-row: 2; min-width: 42px; font-variant-numeric: tabular-nums; }
.cutout-float-label { display: flex; align-items: center; gap: 12px; min-height: 44px; margin: 8px 0 20px; cursor: pointer; }
.cutout-float-label input { width: 18px; height: 18px; margin: 0; accent-color: var(--cutout-ink); }
.cutout-boundary { margin: 16px 0 !important; padding-top: 16px; border-top: 1px solid var(--cutout-line); font-size: 13px; }
.cutout-status { white-space: pre-wrap; overflow-wrap: anywhere; }
.cutout-status:not(:empty) { margin: 20px 0 !important; padding-left: 12px; border-left: 2px solid currentColor; }
.cutout-save { display: block; min-height: 44px; margin: 20px 0 8px; padding: 10px 24px; border: 1px solid var(--cutout-ink); background: var(--cutout-ink); color: var(--cutout-paper) !important; }
.cutout-dialog button:disabled { opacity: .45; cursor: default; }
@media (max-width: 800px) {
  .cutout-layout { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .cutout-workspace { position: static; }
  .cutout-stage { height: 48dvh; min-height: 260px; }
  .cutout-controls { max-width: 600px; }
  .cutout-dialog .cutout-title { font-size: 23px; }
}
@media (max-width: 479px) {
  .cutout-toolbar { gap: 0 16px; }
  .cutout-zoom-label { flex-basis: calc(100% - 100px); }
  .cutout-compare { gap: 4px 20px; }
  .cutout-dialog .cutout-title { font-size: 21px; }
  .cutout-stage { min-height: 220px; }
}