:root{--bg:#fff;--fg:#0f0f0f;--muted:#606060;--chip:#f2f2f2}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--fg);margin:0;font:16px/1.4 -apple-system,system-ui,Roboto,sans-serif}body{padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);overscroll-behavior:none}.probe{gap:10px;padding:12px;display:grid}.probe h1{margin:0;font-size:18px}.player-box{aspect-ratio:16/9;background:#000;width:100%}.player-box iframe{border:0;width:100%;height:100%;display:block}.row{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.row label{align-items:center;gap:4px;font-size:14px;display:flex}input[type=text]{border:1px solid #ccc;border-radius:8px;flex:1;min-width:0;padding:8px;font-size:16px}button{background:var(--chip);color:var(--fg);border:0;border-radius:18px;padding:10px 14px;font-size:15px}button.primary{color:#fff;background:#0f0f0f}pre.log{white-space:pre-wrap;word-break:break-all;background:#f7f7f7;border-radius:8px;max-height:38vh;margin:0;padding:8px;font:12px/1.35 ui-monospace,Menlo,monospace;overflow:auto}.env{color:var(--muted);word-break:break-all;font-size:12px}