/* Problem display styling */
.user-answer-container,
.problem-container {
  font-size: 2.5rem;
  font-weight: bold;
  margin: 0 0;
}

.problem-number {
  padding: 0.25rem;
}

.problem-operator {
  padding: 0 0.5rem;
}

/* Score display styling */
.score-display {
  font-size: 2rem;
  margin: 0 0 1rem;
}

/* Numeric Keypad styling */
.numeric-keypad {
  max-width: 400px;
  margin: 0 auto;
}

#toggle-settings,
#reset-score,
.numeric-keypad .btn {
  --bs-btn-hover-color: var(--bs-btn-color);
  --bs-btn-hover-bg: var(--bs-btn-bg);
}

.keypad-row {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.keypad-btn {
  width: 4rem;
  height: 4rem;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border-radius: 0.5rem;
}

#enter-or-next-button {
  font-size: 28px;
}

.keypad-btn.keypad-double-btn {
  font-size: 3rem;
  width: 8.5rem;
}

#toggle-settings,
#reset-score {
  font-size: 1.5rem;
}

/* Mobile responsiveness */
@media (max-width: 576px) {
  .problem-container {
    font-size: 2rem;
  }

  .problem-operator {
    padding: 0 0.25rem;
  }

  .keypad-btn {
    width: 3.5rem;
    height: 3.5rem;
    font-size: 1.25rem;
  }

  .keypad-btn.keypad-double-btn {
    width: 7.5rem;
  }
}

#settings-section {
  display: none;
}
#settings-section.shown {
  display: block;
}