/* ===== ONBOARDING OVERLAY ===== */
.onboarding {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
}

.onboarding[hidden] {
  display: none;
}

.onboarding__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.onboarding__card {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-xl);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  animation: onboard-in 0.4s ease;
}

@keyframes onboard-in {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Progress bar */
.onboarding__progress {
  display: flex;
  gap: var(--space-sm);
  width: 100%;
  max-width: 200px;
}

.onboarding__progress-step {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: var(--bg-hover);
  transition: background var(--transition-normal);
}

.onboarding__progress-step--active {
  background: var(--accent-green);
}

.onboarding__progress-step--done {
  background: var(--accent-green-dim);
}

/* Title */
.onboarding__title {
  font-size: 24px;
  font-weight: 600;
  text-align: center;
  color: var(--text-primary);
}

.onboarding__desc {
  font-size: 15px;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.6;
}

/* Step content */
.onboarding__body {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

/* Language selector (step 1) */
.onboarding__lang-toggle {
  display: flex;
  gap: var(--space-sm);
}

.onboarding__lang-btn {
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.onboarding__lang-btn:hover {
  background: var(--bg-hover);
}

.onboarding__lang-btn--active {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(59, 138, 240, 0.1);
}

/* Distro cards (step 2) */
.onboarding__distro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  width: 100%;
}

.distro-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.distro-card:hover {
  background: var(--bg-hover);
}

.distro-card--selected {
  border-color: var(--accent-green);
  background: rgba(0, 255, 136, 0.06);
}

.distro-card__icon {
  font-size: 28px;
}

.distro-card__name {
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
}

/* Level selector (step 2) */
.onboarding__level-group {
  display: flex;
  gap: var(--space-sm);
  width: 100%;
}

.level-btn {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  text-align: center;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.level-btn:hover {
  background: var(--bg-hover);
}

.level-btn--selected {
  border-color: var(--accent-blue);
  color: var(--accent-blue);
  background: rgba(59, 138, 240, 0.1);
}

/* API config (step 3) */
.onboarding__api-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
}

.api-option {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
}

.api-option:hover {
  background: var(--bg-hover);
}

.api-option--selected {
  border-color: var(--accent-green);
  background: rgba(0, 255, 136, 0.06);
}

.api-option__radio {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--text-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color var(--transition-fast);
}

.api-option--selected .api-option__radio {
  border-color: var(--accent-green);
}

.api-option--selected .api-option__radio::after {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
}

.api-option__label {
  font-size: 14px;
  color: var(--text-primary);
}

.onboarding__api-key-group {
  display: flex;
  gap: var(--space-sm);
  width: 100%;
}

.onboarding__api-key-input {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
}

.onboarding__api-key-input:focus {
  border-color: var(--border-active);
}

.onboarding__api-verify-btn {
  padding: var(--space-sm) var(--space-md);
  background: var(--accent-blue);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  transition: background var(--transition-fast);
}

.onboarding__api-verify-btn:hover {
  background: var(--accent-blue-dim);
}

.onboarding__api-status {
  font-size: 13px;
  text-align: center;
}

.onboarding__api-status--valid {
  color: var(--accent-green);
}

.onboarding__api-status--invalid {
  color: var(--accent-red);
}

.onboarding__api-link {
  font-size: 13px;
  color: var(--text-secondary);
  text-align: center;
}

.onboarding__api-link a {
  color: var(--accent-blue);
}

/* Navigation buttons */
.onboarding__nav {
  display: flex;
  gap: var(--space-sm);
  width: 100%;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-sm);
}

.onboarding__skip {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 13px;
  color: var(--text-tertiary);
  cursor: pointer;
}

.onboarding__skip input[type="checkbox"] {
  accent-color: var(--accent-green);
}

.onboarding__btn-back {
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  transition: all var(--transition-fast);
}

.onboarding__btn-back:hover {
  background: var(--bg-hover);
}

.onboarding__btn-next {
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 14px;
  background: var(--accent-green);
  color: var(--bg-base);
  margin-left: auto;
  transition: background var(--transition-fast);
}

.onboarding__btn-next:hover {
  background: var(--accent-green-dim);
}

/* Responsive */
@media (max-width: 480px) {
  .onboarding__card {
    padding: var(--space-lg) var(--space-md);
    border-radius: var(--radius-lg);
  }

  .onboarding__title {
    font-size: 20px;
  }

  .onboarding__distro-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs);
  }

  .onboarding__level-group {
    flex-direction: column;
  }
}