.new-game {
  max-width: 600px;
  margin: 0 auto;
  padding: 24px 0;
}

.new-game__title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-heading);
  text-align: center;
  margin-bottom: 32px;
}

.new-game__section {
  margin-bottom: 32px;
}

.new-game__subtitle {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* Difficulty cards */
.difficulty-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.difficulty-card {
  display: block;
  cursor: pointer;
}

.difficulty-card__input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.difficulty-card__content {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 2px solid var(--border-subtle);
  border-radius: 8px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.difficulty-card__input:checked + .difficulty-card__content {
  border-color: var(--accent);
  background: var(--bg-elevated);
}

.difficulty-card:hover .difficulty-card__content {
  border-color: var(--border-hover);
}

.difficulty-card__input:checked + .difficulty-card__content {
  border-color: var(--accent);
}

.difficulty-card__name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-heading);
}

.difficulty-card__desc {
  font-size: 0.85rem;
  color: var(--text-faint);
}

/* Colour cards */
.colour-cards {
  display: flex;
  gap: 16px;
}

.colour-card {
  flex: 1;
  display: block;
  cursor: pointer;
}

.colour-card__input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.colour-card__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 20px;
  background: var(--bg-card);
  border: 2px solid var(--border-subtle);
  border-radius: 8px;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.colour-card__input:checked + .colour-card__content {
  border-color: var(--accent);
  background: var(--bg-elevated);
}

.colour-card:hover .colour-card__content {
  border-color: var(--border-hover);
}

.colour-card__input:checked + .colour-card__content {
  border-color: var(--accent);
}

.colour-card__piece {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.colour-card__piece--white {
  background: var(--piece-white-fill);
  border: 2px solid var(--piece-white-stroke);
}

.colour-card__piece--black {
  background: var(--piece-black-fill);
  border: 2px solid var(--piece-black-stroke);
}

.colour-card__label {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* Submit button */
.new-game__submit {
  width: 100%;
  padding: 14px 24px;
  font-size: 1.1rem;
  margin-top: 8px;
}

/* Game over guest prompt */
.game-info__guest-prompt {
  margin-top: 16px;
  padding: 12px 16px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-tertiary);
}

.game-info__guest-prompt a {
  font-weight: 600;
}

@media (max-width: 480px) {
  .colour-cards {
    flex-direction: column;
  }
}