iv class="status">
        <div class="time" aria-live="polite">Time left: <span id="timeLeft">60</span>s</div>
        <div class="note" style="color:var(--muted)">Press Enter to submit • Esc to clear • Tab to skip</div>
      </div>
      <div class="problem">
        <div id="question" class="big" aria-live="assertive" aria-atomic="true">Ready?</div>
        <div class="answer-wrap">
          <input id="answer" class="answer" type="text" inputmode="numeric" autocomplete="off" autocorrect="off" aria-