.shortest-straw-controller {
  font-family: system-ui, sans-serif;
  text-align: center;
  padding: 18px 14px 28px;
  color: #fff;
  background: #071a33;
  min-height: 100%;
  box-sizing: border-box;
}
.shortest-straw-controller h1 {
  margin: 0 0 8px;
  letter-spacing: .08em;
  font-size: clamp(28px, 7vw, 42px);
}
.instruction,.status-subtitle { margin: 6px auto; opacity: .86; }
.status-title,.result-title { font-size: 28px; font-weight: 900; margin-top: 8px; }
.selection-progress { margin: 10px auto 14px; font-weight: 800; opacity: .8; }
.number-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(110px, 1fr));
  gap: 14px;
  max-width: 460px;
  margin: 0 auto;
}
.number-choice {
  min-width: 0;
  min-height: 112px;
  border: 2px solid rgba(255,255,255,.22);
  border-radius: 16px;
  background: #102a4d;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  overflow: hidden;
  transition: transform .12s ease, border-color .12s ease, opacity .12s ease;
}
.number-choice:not(:disabled):active { transform: scale(.97); }
.number-choice.claimed { opacity: .42; }
.number-choice.mine {
  opacity: 1;
  border-color: #fff;
  box-shadow: 0 0 0 2px rgba(255,255,255,.18) inset;
}
.number-choice.winner {
  opacity: 1;
  border-color: #ffd45a;
  box-shadow: 0 0 20px rgba(255,212,90,.55);
}
.choice-number {
  font-size: clamp(46px, 14vw, 72px);
  line-height: 1;
  font-weight: 900;
}
@media (max-width: 390px) {
  .number-grid { gap: 10px; }
  .number-choice { min-height: 96px; }
}