/* Upgrade Billing — five journey roots only */

/* Shared stepper track + nav */
.billflow-track {
  display: flex;
  gap: 0.25rem;
  margin: 0 0 1.15rem;
  padding: 0;
  list-style: none;
}

.billflow-track li {
  flex: 1;
  text-align: center;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--ink-faint);
  position: relative;
}

.billflow-track li::before {
  content: attr(data-step);
  display: grid;
  place-items: center;
  width: 1.65rem;
  height: 1.65rem;
  margin: 0 auto 0.3rem;
  border-radius: 999px;
  border: 2px solid var(--border-strong);
  background: #fff;
  font-size: 0.7rem;
  color: var(--ink-muted);
}

.billflow-track li.is-done::before,
.billflow-track li.is-current::before {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.billflow-track li.is-current {
  color: var(--accent-deep);
}

.billflow-track li.is-done {
  color: var(--ink-muted);
}

.billflow-nav {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 1.15rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

[data-billflow-panel] {
  display: none;
}

[data-billflow-panel].is-active {
  display: block;
}

.billflow-panel-title {
  margin: 0 0 0.75rem;
  font-size: 1rem;
  font-weight: 700;
}

/* 1. Classic Stepper */
.billflow-classic {
  max-width: 26rem;
  margin-inline: auto;
  padding: 1.25rem;
  background: var(--surface-raised);
  border-radius: var(--billflow-radius);
  border: 1px solid var(--border);
}

.billflow-classic .billflow-track li {
  font-size: 0.62rem;
}

/* 2. Split Sticky Summary */
.billflow-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1.25rem;
  align-items: start;
}

.billflow-split__main,
.billflow-split__aside {
  padding: 1.15rem;
  background: var(--surface-raised);
  border-radius: var(--billflow-radius);
  border: 1px solid var(--border);
}

.billflow-split__aside {
  position: sticky;
  top: 0.75rem;
}

.billflow-split__aside-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.billflow-split__aside-head h3 {
  margin: 0;
  font-size: 1rem;
}

.billflow-split__stage {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-deep);
}

.billflow-split__list {
  margin: 0 0 0.85rem;
  padding: 0;
  list-style: none;
}

.billflow-split__list li {
  position: relative;
  padding: 0.45rem 0 0.45rem 1.15rem;
  font-size: 0.8125rem;
  color: var(--ink-muted);
  border-bottom: 1px solid var(--border);
}

.billflow-split__list li:last-child {
  border-bottom: 0;
}

.billflow-split__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 999px;
  background: var(--border-strong);
}

.billflow-split__list li.is-done::before {
  background: var(--success);
}

.billflow-split__list li.is-current::before {
  background: var(--accent);
}

.billflow-split__list li.is-current {
  color: var(--ink);
  font-weight: 600;
}

.billflow-split__plan {
  margin: 0;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}

.billflow-split__plan strong {
  display: block;
  font-size: 0.875rem;
}

.billflow-split__plan span {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.75rem;
  color: var(--ink-muted);
}

@media (max-width: 48rem) {
  .billflow-split {
    grid-template-columns: 1fr;
  }

  .billflow-split__aside {
    position: static;
  }
}

/* 3. Accordion Journey */
.billflow-accordion {
  max-width: 32rem;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.billflow-accordion [data-billflow-section] {
  border: 1px solid var(--border);
  border-radius: var(--billflow-radius);
  background: var(--surface-raised);
  overflow: hidden;
}

.billflow-accordion [data-billflow-section] > summary {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 0.9375rem;
  user-select: none;
}

.billflow-accordion [data-billflow-section] > summary::-webkit-details-marker {
  display: none;
}

.billflow-accordion [data-billflow-section] > summary::before {
  content: attr(data-step);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 999px;
  border: 2px solid var(--border-strong);
  background: #fff;
  font-size: 0.7rem;
  color: var(--ink-muted);
}

.billflow-accordion [data-billflow-section].is-done > summary::before,
.billflow-accordion [data-billflow-section][open] > summary::before {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.billflow-accordion [data-billflow-section].is-locked {
  opacity: 0.55;
}

.billflow-accordion [data-billflow-section].is-locked > summary {
  cursor: not-allowed;
  pointer-events: none;
}

.billflow-accordion [data-billflow-section].is-hidden {
  display: none;
}

.billflow-accordion__body {
  padding: 0 1rem 1rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.billflow-accordion__foot {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

.billflow-accordion [data-billflow-section] .billflow-badge {
  margin-left: auto;
}

/* 4. Mobile Sheet Stack */
.billflow-sheet {
  display: flex;
  flex-direction: column;
  position: relative;
  background: #eef2f6;
}

.billflow-sheet__chrome {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  height: 1.75rem;
  background: #1a2332;
}

.billflow-sheet__chrome::before {
  content: "";
  width: 4.5rem;
  height: 0.35rem;
  border-radius: 999px;
  background: rgb(255 255 255 / 0.25);
}

.billflow-sheet__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  position: relative;
  overflow: hidden;
}

.billflow-sheet [data-billflow-panel] {
  display: none;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.billflow-sheet [data-billflow-panel].is-active {
  display: flex;
}

.billflow-sheet__panel-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 0.85rem 0.9rem 0.5rem;
  -webkit-overflow-scrolling: touch;
}

.billflow-sheet__footer {
  flex-shrink: 0;
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem 0.9rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--surface-raised);
}

.billflow-sheet__footer .billflow-btn {
  flex: 1;
}

.billflow-sheet__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.billflow-sheet__header h3 {
  margin: 0;
  font-size: 1rem;
}

.billflow-sheet__steps {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 0.75rem;
}

.billflow-sheet__steps span {
  flex: 1;
  height: 3px;
  border-radius: 999px;
  background: var(--border);
}

.billflow-sheet__steps span.is-done,
.billflow-sheet__steps span.is-current {
  background: var(--accent);
}

.billflow-sheet__intro {
  margin-top: auto;
  padding: 0.85rem 0.9rem 0;
  border-radius: 1rem 1rem 0 0;
  background: var(--surface-raised);
  box-shadow: 0 -4px 24px rgb(26 35 50 / 0.08);
  border: 1px solid var(--border);
  border-bottom: 0;
}

.billflow-sheet__handle {
  width: 2.5rem;
  height: 0.3rem;
  margin: 0 auto 0.75rem;
  border-radius: 999px;
  background: var(--border-strong);
}

.billflow-sheet .billflow-unlock {
  padding-top: 0.5rem;
}

.billflow-sheet .billflow-title,
.billflow-sheet .billflow-lede {
  text-align: left;
}

.billflow-sheet .billflow-mark {
  margin-inline: 0;
}

/* 5. Soft Paywall Exit */
.billflow-paywall {
  max-width: 28rem;
  margin-inline: auto;
  padding: 1.25rem;
  background: var(--surface-raised);
  border-radius: var(--billflow-radius);
  border: 1px solid var(--border);
}

.billflow-paywall .billflow-track li {
  font-size: 0.62rem;
}

.billflow-paywall__lede {
  margin: 0 0 0.85rem;
  font-size: 0.875rem;
  color: var(--ink-muted);
  text-align: center;
}