/* Train Game Specific Styles */

/* Form Container */
.train-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg) 0;
}

/* Number Inputs Container */
.train-form__inputs {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
}

/* Individual Digit Input */
.train-form__digit {
  width: 4rem;
  height: 4rem;
  font-size: 2rem;
  font-weight: 600;
  font-family: var(--font-family);
  text-align: center;
  border: 2px solid var(--color-foreground);
  border-radius: 0.5rem;
  background-color: var(--color-background);
  color: var(--color-foreground);
  transition: var(--transition-default);
  -moz-appearance: textfield;
}

.train-form__digit::-webkit-outer-spin-button,
.train-form__digit::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.train-form__digit::placeholder {
  color: var(--color-gray-200);
}

.train-form__digit:focus {
  outline: none;
  border-color: var(--color-foreground);
  box-shadow: 0 0 0 3px var(--color-gray-200);
}

/* Submit Button */
.train-form__submit {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-family);
  color: var(--color-background);
  background-color: var(--color-foreground);
  border: 2px solid var(--color-foreground);
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: var(--transition-default);
}

.train-form__submit:hover {
  background-color: var(--color-background);
  color: var(--color-foreground);
}

.train-form__submit:focus {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-gray-400);
}

/* Results Section */
.train-results {
  display: none;
  padding: var(--spacing-lg) 0;
  border-top: 1px solid var(--color-gray-200);
  margin-top: var(--spacing-md);
}

.train-results.visible {
  display: block;
  animation: fade-in 0.3s ease-out;
}

.train-results__label {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.train-results__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  max-height: 300px;
  overflow-y: auto;
}

.train-results__list .result {
  padding: var(--spacing-xs) var(--spacing-sm);
  background-color: var(--color-gray-100);
  border-radius: 0.25rem;
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
  font-size: 0.9rem;
  text-align: center;
}

.train-results__list .result--empty {
  background-color: transparent;
  color: var(--color-gray-600);
  font-family: var(--font-family);
  font-style: italic;
}

/* Explainer Section */
.train-explainer {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-gray-200);
  margin-top: var(--spacing-lg);
}

.train-explainer h2 {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.train-explainer p {
  margin-bottom: var(--spacing-md);
}

.train-explainer__note {
  font-size: 0.875rem;
  color: var(--color-gray-400);
  font-style: italic;
}

/* Responsive */
@media (max-width: 480px) {
  .train-form__digit {
    width: 3.5rem;
    height: 3.5rem;
    font-size: 1.5rem;
  }
  
  .train-form__inputs {
    gap: var(--spacing-xs);
  }
}