.keyboard {
  display: flex;
  flex-direction: column;
  gap: clamp(0.25rem, 1.2vh, 0.375rem);
  width: 100%;
  max-width: 34.375rem;
  margin: 0.25rem auto 0.5rem;
  padding: 0 0.5rem;
  user-select: none;
}

.keyboard-row {
  display: flex;
  justify-content: center;
  gap: 0.375rem;
  width: 100%;
}

.key {
  background-color: var(--key-bg);
  border: 0.0625rem solid var(--border);
  border-radius: clamp(0.25rem, 1vw, 0.5rem);
  color: var(--text);
  height: clamp(2.8125rem, 7vh, 3.625rem);
  font-size: clamp(0.75rem, 3.5vw, 0.95rem);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  user-select: none;
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.1);
}

.key:hover {
  background-color: #2d3748;
  transform: translateY(-0.125rem);
  border-color: rgba(255, 255, 255, 0.2);
}

.key:active {
  transform: translateY(0) scale(0.96);
  background-color: #1a202c;
}

.key.large {
  flex: 1.6;
  font-size: 0.85rem;
  text-transform: uppercase;
  background-color: rgba(255, 255, 255, 0.1);
}

.key.correct {
  background-color: var(--success);
  border-color: var(--success);
  color: white;
}

.key.present {
  background-color: var(--warning);
  border-color: var(--warning);
  color: white;
}

.key.absent {
  background-color: var(--absent);
  opacity: 0.4;
  border-color: transparent;
}

@media (max-width: 30rem) {
  .keyboard {
    gap: 0.3125rem;
    padding: 0 0.25rem;
    max-width: 100%;
  }
  .keyboard-row {
    gap: 0.25rem;
  }
  .key {
    height: clamp(2.625rem, 8vh, 3.25rem);
    font-size: 0.85rem;
  }
  .key.large {
    font-size: 0.75rem;
    flex: 1.5;
  }
}