/* ---- App Onboarding ---- */

.onboarding-page {
  display: grid;
  gap: 1.25rem;
}

.onboarding-skip-form {
  display: inline-flex;
}

.onboarding-skip-form--step {
  display: none;
}

.onboarding-wizard {
  display: grid;
  grid-template-columns: minmax(14rem, 17rem) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.onboarding-wizard__nav {
  display: grid;
  gap: 0.75rem;
}

.onboarding-step-link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.75rem;
  align-items: start;
  padding: 0.85rem 1rem;
  border: 1px solid var(--rule);
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
}

.onboarding-step-link:hover {
  border-color: color-mix(in srgb, var(--accent) 32%, var(--rule) 68%);
  background: var(--panel-elevated);
}

.onboarding-step-link--active {
  border-color: color-mix(in srgb, var(--accent) 44%, var(--rule) 56%);
  background: color-mix(in srgb, var(--accent) 8%, var(--panel) 92%);
}

.onboarding-step-link__index {
  font-size: var(--text-caption);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.onboarding-step-link__copy {
  display: grid;
  gap: 0.2rem;
}

.onboarding-step-link__title {
  font-size: var(--text-body);
  font-weight: 700;
}

.onboarding-step-link__detail {
  display: none;
  margin: 0;
  color: var(--muted);
  font-size: var(--text-secondary);
  line-height: var(--leading-body);
}

.onboarding-step {
  display: grid;
  gap: 0.85rem;
  padding: 0.9rem;
  border: 1px solid var(--rule);
  background: var(--panel);
}

.onboarding-step__header {
  display: grid;
  gap: 0.45rem;
}

.onboarding-step__count {
  font-size: var(--text-caption);
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.onboarding-step__title {
  margin: 0;
  font-size: clamp(1.25rem, 2.4vw, 1.65rem);
  line-height: 1.12;
}

.onboarding-step__detail {
  margin: 0;
  max-width: 62ch;
}

.onboarding-step__demo {
  padding: 0.8rem;
  border: 1px solid var(--rule);
  background: var(--panel-strong);
}

.onboarding-preview {
  display: grid;
  gap: 0.75rem;
}

.onboarding-preview__sentence-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.65rem;
}

.onboarding-preview__sentence {
  display: grid;
  gap: 0.35rem;
  padding: 0.75rem;
  border: 1px solid var(--rule);
  background: var(--panel);
}

.onboarding-preview__sentence--translated {
  background: color-mix(in srgb, var(--accent) 6%, var(--panel) 94%);
}

.onboarding-preview__label {
  color: var(--muted);
  font-size: var(--text-caption);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.onboarding-preview__text {
  margin: 0;
  color: var(--ink);
  font-size: var(--text-body);
  line-height: var(--leading-body);
}

.onboarding-preview__token {
  display: inline-block;
  padding: 0.06rem 0.24rem;
  border-radius: 0.35rem;
  background: color-mix(in srgb, var(--onboarding-preview-color) 14%, transparent);
  box-shadow: inset 0 -0.12rem 0 color-mix(in srgb, var(--onboarding-preview-color) 42%, transparent);
}

.onboarding-preview__workflow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.onboarding-preview__flow-item {
  display: grid;
  gap: 0.25rem;
  min-height: 6.5rem;
  padding: 0.65rem;
  border: 1px solid var(--rule);
  background: var(--panel);
}

.onboarding-preview__flow-item--active {
  border-color: color-mix(in srgb, var(--accent) 46%, var(--rule) 54%);
  background: color-mix(in srgb, var(--accent) 8%, var(--panel) 92%);
}

.onboarding-preview__flow-index {
  color: var(--accent);
  font-size: var(--text-caption);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.onboarding-preview__flow-title {
  color: var(--ink);
  font-weight: 800;
  line-height: 1.2;
}

.onboarding-preview__flow-example {
  align-self: end;
  color: var(--muted);
  font-size: var(--text-caption);
  line-height: 1.35;
}

.onboarding-preview__example-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  align-items: center;
}

.onboarding-preview__arrow {
  color: var(--accent);
  font-weight: 800;
}

.onboarding-preview__progress-example {
  display: grid;
  gap: 0.3rem;
}

.onboarding-preview__progress-label {
  color: var(--muted);
  font-size: var(--text-caption);
  font-weight: 700;
}

.onboarding-preview__progress-track {
  display: block;
  height: 0.25rem;
  overflow: hidden;
  background: var(--rule);
}

.onboarding-preview__progress-fill {
  display: block;
  width: 30%;
  height: 100%;
  background: var(--accent);
}

.onboarding-step__actions {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.onboarding-step__actions--final {
  justify-content: flex-end;
}

.onboarding-step__finish-form {
  display: inline-flex;
}

.onboarding-step__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-left: auto;
}

.onboarding-step__actions a,
.onboarding-step__actions form {
  display: inline-flex;
}

.onboarding-step__actions .onboarding-skip-form--step {
  display: none;
}

@media (max-width: 980px) {
  .onboarding-wizard {
    grid-template-columns: 1fr;
  }

  .onboarding-wizard__nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .onboarding-step__actions {
    align-items: stretch;
  }

  .onboarding-step__nav {
    width: 100%;
    margin-left: 0;
  }

  .onboarding-step__nav a,
  .onboarding-step__nav form {
    flex: 1 1 12rem;
  }

  .onboarding-step__nav sl-button::part(base) {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .onboarding-page {
    gap: 0.85rem;
    padding-bottom: 5rem;
  }

  .onboarding-page-heading .page-heading__actions {
    display: none;
  }

  .onboarding-step__actions {
    position: fixed;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 30;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
    padding:
      0.65rem
      max(1rem, env(safe-area-inset-right))
      max(0.65rem, env(safe-area-inset-bottom))
      max(1rem, env(safe-area-inset-left));
    border-top: 1px solid var(--rule);
    background: color-mix(in srgb, var(--panel) 94%, transparent);
    box-shadow: 0 -0.75rem 1.5rem var(--shadow-color);
    backdrop-filter: blur(12px);
  }

  .onboarding-step__actions--final {
    justify-content: stretch;
  }

  .onboarding-step__actions .onboarding-skip-form--step {
    display: inline-flex;
    flex: 0 0 auto;
  }

  .onboarding-skip-form--step sl-button::part(base) {
    width: auto;
  }

  .onboarding-wizard__nav {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .onboarding-step-link {
    grid-template-columns: 2rem minmax(0, 1fr);
    gap: 0.6rem;
    padding: 0.6rem 0.7rem;
  }

  .onboarding-step-link__copy {
    gap: 0.12rem;
  }

  .onboarding-step-link--active {
    padding-block: 0.7rem;
  }

  .onboarding-step-link--active .onboarding-step-link__detail {
    display: block;
    margin-top: 0.35rem;
  }

  .onboarding-step__header {
    display: block;
  }

  .onboarding-step__count {
    display: inline-flex;
    width: fit-content;
    padding: 0.15rem 0.45rem;
    border: 1px solid var(--rule);
    background: var(--panel-strong);
  }

  .onboarding-step__title,
  .onboarding-step__detail {
    display: none;
  }

  .onboarding-step {
    padding: 0.85rem;
  }

  .onboarding-step__demo {
    padding: 0.6rem;
  }

  .onboarding-step__nav {
    width: auto;
    margin-left: 0;
    flex: 0 1 auto;
    flex-wrap: nowrap;
    justify-content: flex-end;
  }

  .onboarding-step__nav a,
  .onboarding-step__nav form {
    flex: 0 0 auto;
  }

  .onboarding-step__nav sl-button::part(base) {
    width: auto;
  }

  .onboarding-step__actions--final .onboarding-step__nav,
  .onboarding-step__actions--final .onboarding-step__nav form,
  .onboarding-step__actions--final .onboarding-step__nav sl-button::part(base) {
    width: 100%;
  }

  .onboarding-preview {
    gap: 0.55rem;
  }

  .onboarding-preview__sentence-pair {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .onboarding-preview__sentence {
    padding: 0.6rem;
  }

  .onboarding-preview__workflow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.45rem;
  }

  .onboarding-preview__flow-item {
    min-height: 5.5rem;
    padding: 0.55rem;
  }

}