.trace-step{grid-column:1/-1;background:#f0f8f4}
.trace-controls{display:flex;gap:10px;margin:18px 0}
.trace-letter{width:54px;height:54px;border:2px solid #94bfb0;border-radius:13px;background:#fff;color:#163c5b;font-size:30px;font-weight:900}
.trace-letter[aria-pressed="true"]{background:#163c5b;color:#fff;border-color:#163c5b}
.trace-canvas{display:block;width:100%;height:auto;max-height:360px;aspect-ratio:20/11;background:#f8fcfa;border:3px solid #a6cebe;border-radius:18px;touch-action:none;cursor:crosshair}
.trace-clear{min-height:44px;border:0;border-radius:11px;padding:10px 16px;background:#dcefe7;color:#163c5b;font-weight:900}
.trace-hint{font-weight:800}