.puzzle-input {
  width: 100%;
}

.puzzle-input__form {
  display: flex;
  flex-direction: column;
  gap: var(--app-spacing-md);
}

.puzzle-input__field {
  width: 100%;
  min-height: 56px;
  padding: var(--app-spacing-md) var(--app-spacing-lg);
  border: 2px solid var(--app-color-border-strong);
  border-radius: var(--app-radius-md);
  background: var(--app-color-surface);
  color: var(--app-color-text);
  font-size: var(--app-font-size-xl);
  font-weight: 600;
  text-align: center;
  outline: none;
  letter-spacing: 0.5px;
  transition: border-color var(--app-transition-fast), box-shadow var(--app-transition-fast);
}

.puzzle-input__field::placeholder {
  color: var(--app-color-text-muted);
  font-weight: 400;
  letter-spacing: 0;
}

.puzzle-input__field:focus {
  border-color: var(--app-color-primary);
  box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.18);
}

.puzzle-input__feedback {
  margin: 0;
  text-align: center;
  font-size: var(--app-font-size-sm);
  font-weight: 600;
  min-height: 1.4em;
}

.puzzle-input__feedback--error { color: var(--app-color-error); }
.puzzle-input__feedback--success { color: var(--app-color-success); }

.puzzle-input--shake { animation: app-shake 0.3s ease; }