.pin-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.68);
  z-index: 3000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.pin-modal-card {
  width: min(340px, 100%);
  background: var(--color-bg, #ffffff);
  color: var(--color-text, #1f2937);
  border-radius: 16px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
  padding: 20px;
}

.pin-modal-title {
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
}

.pin-modal-subtitle {
  margin: 8px 0 14px;
  font-size: 14px;
  color: var(--color-text-muted, #6b7280);
}

.pin-digit-row {
  display: inline-flex;
  gap: 8px;
  width: 100%;
  justify-content: center;
  margin-bottom: 12px;
}

.pin-digit-box {
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-border, #d1d5db);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--color-text, #1f2937);
  background: var(--color-surface, #ffffff);
}

.pin-digit-box.active {
  border-color: var(--color-primary, #2194dd);
  box-shadow: 0 0 0 2px rgba(33, 148, 221, 0.2);
}

.pin-digit-box.error {
  border-color: var(--color-danger, #ef4444);
}

.pin-modal-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.pin-modal-message {
  margin: 0 0 14px;
  min-height: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--color-text-muted, #6b7280);
}

.pin-modal-message.error {
  color: var(--color-danger, #ef4444);
}

.pin-modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.pin-modal-btn {
  min-width: 96px;
}

.pin-modal-card.shake {
  animation: pin-shake 180ms linear 2;
}

@keyframes pin-shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  50% { transform: translateX(6px); }
  75% { transform: translateX(-4px); }
  100% { transform: translateX(0); }
}

html.dark-mode .pin-modal-card {
  background: #1f2937;
  color: #f3f4f6;
}

html.dark-mode .pin-modal-subtitle,
html.dark-mode .pin-modal-message {
  color: #9ca3af;
}

html.dark-mode .pin-digit-box {
  background: #111827;
  color: #f3f4f6;
  border-color: #374151;
}