:root{--bg: #fff;--fg: #111;--line: #111;--accent: #1f6feb}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--fg);background:var(--bg)}.app{max-width:1100px;margin:0 auto;padding:16px}h1{margin:0 0 4px;font-size:24px}.privacy{margin:0 0 12px;font-size:13px}.controls{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;border:1px solid var(--line);padding:10px;margin-bottom:10px}button,select{border:1px solid var(--line);border-radius:0;background:#fff;padding:6px 10px}button{cursor:pointer}button:disabled{opacity:.5;cursor:not-allowed}.stage-wrap{border:1px solid var(--line);background:#000}.stage{position:relative;width:100%;aspect-ratio:16/9}video,canvas{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}video{object-fit:cover;transform:scaleX(-1)}canvas{pointer-events:none}.stats,.log{border:1px solid var(--line);margin-top:10px;padding:10px;min-height:48px;white-space:pre-wrap;font-size:13px}.gesture-badge{display:inline-block;border:1px solid var(--line);padding:2px 6px;margin-left:6px;color:#fff;background:var(--accent)}