.keypad {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}

.keypad__key {
  background: var(--bp-bg-secondary);
  border: 1px solid var(--bp-border);
  border-radius: var(--radius-sm);
  color: var(--bp-text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  padding: 10px 4px;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s;
  position: relative;
  line-height: 1.2;
}

.keypad__key:hover:not(.keypad__key--disabled) {
  border-color: rgba(176, 137, 255, 0.44);
  box-shadow: 0 0 10px rgba(176, 137, 255, 0.24);
}

.keypad__key:active:not(.keypad__key--disabled) {
  background: rgba(176, 137, 255, 0.2);
}

.keypad__key:focus-visible {
  outline: 2px solid var(--bp-purple-light);
  outline-offset: 1px;
}

.keypad__key--flash {
  background: rgba(176, 137, 255, 0.3) !important;
  border-color: var(--bp-purple) !important;
}

.keypad__key--inactive {
  opacity: 0.25;
  cursor: default;
}

.keypad__key--disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.keypad__key--disabled::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(176, 137, 255, 0.16);
  border-radius: var(--radius-sm);
}

.keypad__key-num {
  font-size: 14px;
  font-weight: 600;
  color: var(--bp-text-accent);
}

.keypad__key-label {
  display: block;
  font-size: 9px;
  color: var(--bp-text-secondary);
  margin-top: 2px;
}