.uauth-container {
  /* Theme tokens (prefer app-level CSS variables, fall back to safe defaults) */
  --uauth-primary: var(--primary, var(--accent-primary, #d81b60));
  --uauth-primary-dark: var(--primary-dark, var(--accent-primary-hover, #ad1457));
  --uauth-text: var(--text-main, var(--text-primary, #f2f2f2));
  --uauth-muted: var(--text-muted, var(--text-secondary, #b8b8b8));
  --uauth-bg: var(--bg-card, var(--bg-elevated, var(--card-surface, #121212)));
  --uauth-input-bg: var(--bg-input, var(--bg-tertiary, var(--bg-secondary, #1a1a1a)));
  --uauth-border: var(--border-color, var(--border, rgba(255, 255, 255, 0.14)));
  --uauth-focus: var(--border-highlight, var(--uauth-primary));
  --uauth-error: var(--error, #f44336);
  --uauth-success: var(--success, #4caf50);
  --uauth-info: var(--info, #2196f3);
  --uauth-warning: var(--warning, #ff9800);
  --uauth-shadow: var(--shadow-md, rgba(0, 0, 0, 0.35));
  --uauth-overlay: var(--overlay, rgba(0, 0, 0, 0.42));
  --uauth-spinner-track: var(--spinner-track, rgba(255, 255, 255, 0.22));
  --uauth-biometric-bg: var(--biometric-bg, #2e7d32);
  --uauth-biometric-bg-hover: var(--biometric-bg-hover, #1b5e20);

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  max-width: 400px;
  margin: 0 auto;
  padding: 24px;
  background: var(--uauth-bg);
  border-radius: 12px;
  box-shadow: 0 4px 20px var(--uauth-shadow);
  position: relative;
  color: var(--uauth-text);
  border: 1px solid var(--uauth-border);
}

/* Optional role-specific tweaks (useful if an app doesn't define --primary). */
.uauth-theme-customer {
  --uauth-primary: var(--primary, #b01255);
  --uauth-primary-dark: var(--primary-dark, #8f0f45);
}
.uauth-theme-staff {
  --uauth-primary: var(--primary, #2563eb);
  --uauth-primary-dark: var(--primary-dark, #1d4ed8);
}
.uauth-theme-rider {
  --uauth-primary: var(--primary, #16a34a);
  --uauth-primary-dark: var(--primary-dark, #15803d);
}

.uauth-header {
  text-align: center;
  margin-bottom: 24px;
}
.uauth-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--uauth-text);
  margin: 0 0 8px 0;
}
.uauth-subtitle {
  font-size: 14px;
  color: var(--uauth-muted);
  margin: 0;
}

.uauth-section {
  margin-bottom: 16px;
}

.uauth-phone-group {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.uauth-country-select {
  flex: 0 0 100px;
  padding: 12px;
  border: 2px solid var(--uauth-border);
  border-radius: 8px;
  font-size: 16px;
  background: var(--uauth-input-bg);
  color: var(--uauth-text);
  cursor: pointer;
}
.uauth-country-select:focus {
  outline: none;
  border-color: var(--uauth-focus);
}

.uauth-phone-input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--uauth-border);
  border-radius: 8px;
  font-size: 18px;
  letter-spacing: 1px;
  background: var(--uauth-input-bg);
  color: var(--uauth-text);
}
.uauth-phone-input:focus {
  outline: none;
  border-color: var(--uauth-focus);
}

.uauth-otp-input {
  width: 100%;
  padding: 16px;
  border: 2px solid var(--uauth-border);
  border-radius: 8px;
  font-size: 24px;
  text-align: center;
  letter-spacing: 8px;
  margin-bottom: 16px;
  box-sizing: border-box;
  background: var(--uauth-input-bg);
  color: var(--uauth-text);
}
.uauth-otp-input:focus {
  outline: none;
  border-color: var(--uauth-focus);
}

.uauth-btn {
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s ease, color 0.12s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 12px;
}
.uauth-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.uauth-btn-primary {
  background: var(--uauth-primary);
  color: var(--text-inverse, #ffffff);
}
.uauth-btn-primary:hover:not(:disabled) {
  background: var(--uauth-primary-dark);
  transform: translateY(-1px);
}
.uauth-btn-secondary {
  background: transparent;
  border: 2px solid var(--uauth-border);
  color: var(--uauth-text);
}
.uauth-btn-secondary:hover:not(:disabled) {
  border-color: var(--uauth-focus);
  transform: translateY(-1px);
}
.uauth-btn-biometric {
  background: var(--uauth-biometric-bg);
  color: var(--text-inverse, #ffffff);
}
.uauth-btn-biometric:hover:not(:disabled) {
  background: var(--uauth-biometric-bg-hover);
  transform: translateY(-1px);
}
.uauth-btn-link {
  background: transparent;
  color: var(--uauth-muted);
  font-weight: 400;
}
.uauth-btn-link:hover {
  color: var(--uauth-primary);
}
.uauth-icon {
  font-size: 20px;
}

.uauth-status {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
  text-align: center;
}
.uauth-status.error {
  background: rgba(244, 67, 54, 0.12);
  color: var(--uauth-error);
  border: 1px solid var(--uauth-error);
}
.uauth-status.success {
  background: rgba(76, 175, 80, 0.12);
  color: var(--uauth-success);
  border: 1px solid var(--uauth-success);
}
.uauth-status.info {
  background: rgba(33, 150, 243, 0.12);
  color: var(--uauth-info);
  border: 1px solid var(--uauth-info);
}

.uauth-phone-display {
  font-size: 18px;
  font-weight: 500;
  text-align: center;
  color: var(--uauth-text);
  margin-bottom: 20px;
  padding: 12px;
  background: var(--uauth-input-bg);
  border-radius: 8px;
  border: 1px solid var(--uauth-border);
}
.uauth-otp-prompt {
  font-size: 14px;
  color: var(--uauth-muted);
  text-align: center;
  margin-bottom: 16px;
}

.uauth-loading {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--uauth-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  z-index: 10;
}
.uauth-loading[hidden] {
  display: none !important;
}
.uauth-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--uauth-spinner-track);
  border-top-color: var(--uauth-primary);
  border-radius: 50%;
  animation: uauth-spin 1s linear infinite;
}
@keyframes uauth-spin {
  to {
    transform: rotate(360deg);
  }
}

.uauth-fallback-notice {
  font-size: 12px;
  color: var(--uauth-warning);
  text-align: center;
  margin-top: 8px;
}
.uauth-welcome-back {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 16px;
}
.uauth-welcome-icon {
  font-size: 28px;
}
.uauth-welcome-text {
  font-size: 20px;
  font-weight: 600;
  color: var(--uauth-text);
}