* { box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: #f6f7fb;
  margin: 0;
  padding: 16px;
  color: #1f2330;
}
.wrap { max-width: 420px; margin: 0 auto; text-align: center; }
.status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
  font-size: 16px;
}
#newbtn {
  background: #4f46e5; color: white; border: 0; padding: 8px 14px;
  border-radius: 6px; cursor: pointer;
}
#newbtn:hover { background: #4338ca; }
#newbtn:disabled { background: #9ca3af; cursor: not-allowed; }
.pad {
  background: #1f2330;
  color: white;
  padding: 80px 12px;
  border-radius: 6px;
  font-size: 22px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  touch-action: manipulation;
}
.pad:focus { outline: 2px solid #4f46e5; }
.pad.waiting { background: #4b5563; }
.pad.armed   { background: #b91c1c; }
.pad.go      { background: #16a34a; }
.pad.early   { background: #f59e0b; color: #1f2330; }
.hint { color: #6b7280; font-size: 13px; margin-top: 8px; }
.result {
  margin-top: 16px;
  padding: 12px;
  background: #d1fae5;
  color: #065f46;
  border-radius: 6px;
  font-size: 18px;
  font-weight: 600;
}
.result.hidden { display: none; }
#trialList {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  font-weight: 400;
  font-size: 14px;
  color: #064e3b;
}