:root{color-scheme:light dark;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 10px;--radius-pill: 999px;--font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji", "Segoe UI Emoji";--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--border-weak: rgba(127, 127, 127, .25);--border: rgba(127, 127, 127, .35);--text-dim: rgba(127, 127, 127, .75);--bg-control: rgba(30, 30, 30, .15)}body{margin:0;font-family:var(--font-sans)}header{padding:var(--space-3) var(--space-4);display:flex;gap:var(--space-3);align-items:center;flex-wrap:wrap;border-bottom:1px solid var(--border-weak)}header .spacer{flex:1}main{display:grid;grid-template-columns:360px 1fr;gap:var(--space-4);padding:var(--space-4)}@media(max-width:900px){main{grid-template-columns:1fr}}.panel{border:1px solid var(--border-weak);border-radius:var(--radius-lg);padding:var(--space-3)}label{display:block;margin:var(--space-2) 0 var(--space-1);opacity:.85}select,button,input[type=number]{width:100%;padding:var(--space-2) 10px;border-radius:var(--radius-md);border:1px solid var(--border);background:transparent}button{cursor:pointer}.row{display:flex;gap:10px}.row>*{flex:1}#canvasWrap{display:grid;place-items:center;border:1px solid var(--border-weak);border-radius:var(--radius-lg);padding:var(--space-2)}canvas{max-width:100%;height:auto;image-rendering:pixelated}pre{margin:0;white-space:pre-wrap;word-break:break-word;font-size:12px;opacity:.9}.hint{font-size:12px;opacity:.75;line-height:1.35}.badge{display:inline-block;padding:var(--space-1) var(--space-2);border-radius:var(--radius-pill);border:1px solid var(--border);font-size:12px;opacity:.9}.kbd{font-family:var(--font-mono);border:1px solid var(--border);border-bottom-width:2px;padding:1px 6px;border-radius:var(--radius-sm);font-size:12px}#dpad{position:fixed;right:14px;bottom:14px;z-index:9999;display:grid;grid-template-columns:56px 56px 56px;grid-template-rows:56px 56px 56px;gap:var(--space-2);touch-action:none;-webkit-user-select:none;user-select:none}#dpad .dpad-btn{width:56px;height:56px;border-radius:14px;border:1px solid var(--border);background:var(--bg-control);font-size:20px;line-height:1}#dpad .dpad-btn:active{transform:translateY(1px)}#dpad .dpad-btn[data-dir=U]{grid-column:2;grid-row:1}#dpad .dpad-btn[data-dir=L]{grid-column:1;grid-row:2}#dpad .dpad-btn[data-dir=D]{grid-column:2;grid-row:3}#dpad .dpad-btn[data-dir=R]{grid-column:3;grid-row:2}