#ds-app h2, #ds-app h3 { font-size: 1.05rem; margin: 0 0 8px; font-weight: 700; }
#ds-app p { font-size: .88rem; line-height: 1.5; }
.ds-toolbar-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin: 16px 0 8px; }
.ds-toolbar-top p { margin: 0; }
.ds-workspace { display: grid; grid-template-columns: minmax(0, 1fr); gap: 20px; align-items: start; margin: 16px 0 24px; }
.ds-panel { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.ds-panel-header { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
.ds-panel-header h3 { margin: 0; }
.ds-hint { font-size: .8rem; }
#ds-arena { position: relative; width: 100%; max-width: 600px; margin: 0 auto; user-select: none; }
#ds-source { display: block; width: 100%; height: auto; border-radius: 6px; }
#ds-outline { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
#ds-outline polygon { fill: #16653422; stroke: #ffffff; stroke-width: 3; vector-effect: non-scaling-stroke; transition: stroke 0.15s ease; }
#ds-outline.is-invalid polygon { fill: #ef444422; stroke: #ef4444; }
#ds-app .ds-handle { position: absolute; transform: translate(-50%, -50%); width: 44px; height: 44px; border: 2px solid #ffffff; border-radius: 50%; background: #166534; color: #ffffff; cursor: grab; touch-action: none; font-weight: 700; font-size: .95rem; display: flex; align-items: center; justify-content: center; box-shadow: 0 2px 8px rgba(0,0,0,0.35); z-index: 10; padding: 0; }
#ds-app .ds-handle:active { cursor: grabbing; transform: translate(-50%, -50%) scale(1.12); }
#ds-app .ds-handle:focus-visible { outline: 3px solid var(--text); outline-offset: 3px; }
.ds-preview-wrap { position: relative; width: 100%; min-height: 240px; background: var(--bg); border-radius: 6px; display: flex; align-items: center; justify-content: center; overflow: hidden; border: 1px solid var(--border); padding: 8px; }
#ds-output { display: block; max-width: 100%; max-height: 520px; object-fit: contain; margin: 0 auto; border-radius: 4px; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.ds-download-bar { margin-top: 14px; display: flex; gap: 10px; flex-wrap: wrap; }
.ds-controls { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin: 16px 0; }
.ds-section-title { margin-bottom: 12px; }
#ds-app .ds-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 12px 0; }
#ds-app input { accent-color: var(--accent); }
#ds-app .input, #ds-app .select, #ds-app .btn, #ds-app .check, #ds-app input[type=range] { min-height: 44px; }
.ds-precise { margin-top: 16px; font-size: .88rem; }
.ds-precise summary { cursor: pointer; font-weight: 600; color: var(--muted); }
.tool-layout:has(#ds-app) .proc-tip-bubble { left: auto; right: -9px; }
.tool-layout:has(#ds-app) .proc-tip-bubble::after { left: auto; right: 11px; }

@media (min-width: 860px) {
  .ds-workspace { grid-template-columns: 1fr 1fr; }
  #ds-app .ds-fields { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 440px) {
  #ds-app .ds-fields { grid-template-columns: minmax(0, 1fr); }
  .ds-panel { padding: 12px; }
}