/* =============================================================================
   BUAMS AI new-ui — PRICING PAGE
   Spec: /frontend_design.md §K.8
   ============================================================================= */

/* ── Segmented toggles (audience + billing cycle) ─────────────────────────── */
.bui-pricing-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--bui-space-4);
  flex-wrap: wrap;
  margin-bottom: var(--bui-space-10);
}

.bui-segmented {
  display: inline-flex;
  padding: var(--bui-space-1);
  background: var(--bui-surface-2);
  border: 1px solid var(--bui-line);
  border-radius: var(--bui-radius-pill);
}

.bui-segmented-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--bui-space-2);
  min-height: 38px;
  padding: var(--bui-space-2) var(--bui-space-5);
  background: none;
  border: 0;
  border-radius: var(--bui-radius-pill);
  font-size: var(--bui-text-sm);
  font-weight: var(--bui-fw-semibold);
  color: var(--bui-ink-500);
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--bui-transition), color var(--bui-transition);
}

.bui-segmented-btn:hover {
  color: var(--bui-primary-700);
}

.bui-segmented-btn[aria-selected='true'] {
  background: var(--bui-surface);
  box-shadow: var(--bui-shadow-xs);
  color: var(--bui-primary-800);
}

.bui-segmented-btn:focus-visible {
  outline: 2px solid var(--bui-primary-700);
  outline-offset: 2px;
}

/* Annual saving flag — the only place a second accent is allowed here */
.bui-save-flag {
  padding: 2px var(--bui-space-2);
  background: var(--bui-success-bg);
  border: 1px solid rgba(21, 127, 79, .3);
  border-radius: var(--bui-radius-pill);
  font-size: var(--bui-text-overline);
  font-weight: var(--bui-fw-heavy);
  letter-spacing: .04em;
  text-transform: uppercase;
  color: #0E5334;
}

/* ── Plan grid ────────────────────────────────────────────────────────────── */
.bui-plans {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--bui-space-5);
  align-items: stretch;
}

.bui-plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--bui-space-6);
  background: var(--bui-surface);
  border: 1px solid var(--bui-line);
  border-radius: var(--bui-radius-lg);
  transition: border-color var(--bui-transition), box-shadow var(--bui-transition);
}

.bui-plan-card:hover {
  border-color: var(--bui-primary-200);
  box-shadow: var(--bui-shadow-md);
}

/* The recommended tier. Not stored in the schema — chosen in the view, so it
   is a presentation decision rather than an invented database column. */
.bui-plan-card.is-featured {
  border-color: var(--bui-primary-700);
  box-shadow: var(--bui-shadow-md);
}

.bui-plan-flag {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: var(--bui-space-1) var(--bui-space-4);
  background: var(--bui-primary-700);
  border-radius: var(--bui-radius-pill);
  font-size: var(--bui-text-overline);
  font-weight: var(--bui-fw-heavy);
  letter-spacing: .06em;
  text-transform: uppercase;
  color: #fff;
  white-space: nowrap;
}

.bui-plan-head {
  padding-bottom: var(--bui-space-5);
  border-bottom: 1px solid var(--bui-line);
}

.bui-plan-title {
  font-size: var(--bui-text-h2);
  font-weight: var(--bui-fw-bold);
  color: var(--bui-ink-900);
}

.bui-plan-tagline {
  margin-top: var(--bui-space-1);
  font-size: var(--bui-text-sm);
  color: var(--bui-ink-500);
}

/* ── Price ────────────────────────────────────────────────────────────────── */
.bui-price {
  display: flex;
  align-items: baseline;
  gap: var(--bui-space-1);
  margin-top: var(--bui-space-5);
}

.bui-price-currency {
  font-size: 1.125rem;
  font-weight: var(--bui-fw-bold);
  color: var(--bui-ink-900);
}

.bui-price-amount {
  font-size: 2.375rem;
  line-height: 1;
  font-weight: var(--bui-fw-heavy);
  letter-spacing: -.03em;
  color: var(--bui-ink-900);
  font-variant-numeric: tabular-nums;
}

.bui-price-cycle {
  font-size: var(--bui-text-sm);
  color: var(--bui-ink-500);
}

.bui-price-note {
  margin-top: var(--bui-space-2);
  font-size: var(--bui-text-xs);
  line-height: var(--bui-lh-snug);
  color: var(--bui-ink-500);
}

/* Per-seat line — the part of clinic pricing most easily missed */
.bui-price-seat {
  display: flex;
  align-items: baseline;
  gap: var(--bui-space-1);
  margin-top: var(--bui-space-3);
  padding: var(--bui-space-2) var(--bui-space-3);
  background: var(--bui-primary-50);
  border: 1px solid var(--bui-primary-200);
  border-radius: var(--bui-radius-md);
  font-size: var(--bui-text-sm);
  color: var(--bui-primary-800);
}

.bui-price-seat strong {
  font-weight: var(--bui-fw-heavy);
  font-variant-numeric: tabular-nums;
}

/* ── Plan meta (seats, credits, trial) ────────────────────────────────────── */
.bui-plan-meta {
  display: flex;
  flex-direction: column;
  gap: var(--bui-space-2);
  margin-top: var(--bui-space-5);
  padding: var(--bui-space-4);
  background: var(--bui-surface-2);
  border-radius: var(--bui-radius-md);
  list-style: none;
}

.bui-plan-meta li {
  display: flex;
  align-items: center;
  gap: var(--bui-space-2);
  font-size: var(--bui-text-sm);
  color: var(--bui-ink-700);
}

.bui-plan-meta .bi {
  flex-shrink: 0;
  color: var(--bui-primary-700);
}

.bui-plan-meta strong {
  font-variant-numeric: tabular-nums;
}

/* ── Feature list ─────────────────────────────────────────────────────────── */
.bui-plan-features {
  margin-top: var(--bui-space-5);
  padding-top: var(--bui-space-5);
  border-top: 1px solid var(--bui-line);
  flex: 1 1 auto;
}

.bui-feature-group-title {
  margin: var(--bui-space-4) 0 var(--bui-space-2);
  font-size: var(--bui-text-overline);
  font-weight: var(--bui-fw-heavy);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--bui-ink-500);
}

.bui-feature-group-title:first-child {
  margin-top: 0;
}

.bui-feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--bui-space-2);
  list-style: none;
}

.bui-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--bui-space-2);
  font-size: var(--bui-text-sm);
  line-height: var(--bui-lh-snug);
  color: var(--bui-ink-700);
}

.bui-feature-list .bi {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--bui-success);
  font-size: .9rem;
}

.bui-plan-cta {
  margin-top: var(--bui-space-6);
}

/* ── Add-ons & credit packs ─────────────────────────────────────────────────
   Named .bui-plan-addon, NOT .bui-addon: components/forms.css already owns
   .bui-addon for the input-group chip (the ".buams.com" suffix), and that rule
   sets white-space: nowrap. Reusing the name here made every add-on
   description refuse to wrap and pushed the page 278px wider than a phone
   viewport. One concept, one name (spec §L). */
.bui-plan-addon-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--bui-space-5);
}

.bui-plan-addon {
  display: flex;
  flex-direction: column;
  /* Pair with minmax(0, 1fr) on the track: a flex container's automatic
     minimum size would otherwise keep the card at its content width and push
     the single-column grid wider than the viewport. */
  min-width: 0;
  padding: var(--bui-space-5);
  background: var(--bui-surface);
  border: 1px solid var(--bui-line);
  border-radius: var(--bui-radius-lg);
}

.bui-plan-addon-name {
  font-size: var(--bui-text-h3);
  font-weight: var(--bui-fw-bold);
  color: var(--bui-ink-900);
}

.bui-plan-addon-desc {
  flex: 1 1 auto;
  margin-top: var(--bui-space-2);
  font-size: var(--bui-text-sm);
  line-height: var(--bui-lh-normal);
  color: var(--bui-ink-500);
}

.bui-plan-addon-price {
  display: flex;
  align-items: baseline;
  gap: var(--bui-space-1);
  margin-top: var(--bui-space-4);
  padding-top: var(--bui-space-4);
  border-top: 1px solid var(--bui-line);
}

.bui-plan-addon-amount {
  font-size: 1.375rem;
  font-weight: var(--bui-fw-heavy);
  color: var(--bui-ink-900);
  font-variant-numeric: tabular-nums;
}

.bui-plan-addon-unit {
  font-size: var(--bui-text-xs);
  color: var(--bui-ink-500);
}

.bui-pack-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--bui-space-4);
}

.bui-pack {
  padding: var(--bui-space-5);
  background: var(--bui-surface);
  border: 1px solid var(--bui-line);
  border-radius: var(--bui-radius-lg);
  text-align: center;
}

.bui-pack-credits {
  font-size: 1.5rem;
  font-weight: var(--bui-fw-heavy);
  color: var(--bui-primary-700);
  font-variant-numeric: tabular-nums;
}

.bui-pack-name {
  margin-top: 2px;
  font-size: var(--bui-text-xs);
  color: var(--bui-ink-500);
}

.bui-pack-price {
  margin-top: var(--bui-space-3);
  padding-top: var(--bui-space-3);
  border-top: 1px solid var(--bui-line);
  font-size: var(--bui-text-body);
  font-weight: var(--bui-fw-bold);
  color: var(--bui-ink-900);
  font-variant-numeric: tabular-nums;
}

/* ── Responsive (spec §H) ─────────────────────────────────────────────────── */
@media (max-width: 991.98px) {
  .bui-plans,
  .bui-plan-addon-grid { grid-template-columns: minmax(0, 1fr); }
  .bui-pack-grid  { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  /* The flag overlaps the card above once stacked, so give it room. */
  .bui-plan-card.is-featured { margin-top: var(--bui-space-4); }
}

@media (max-width: 575.98px) {
  .bui-pricing-controls { flex-direction: column; gap: var(--bui-space-3); }
  .bui-segmented { width: 100%; }
  .bui-segmented-btn { flex: 1 1 0; justify-content: center; padding-inline: var(--bui-space-3); }
  .bui-plan-card { padding: var(--bui-space-5); }
  .bui-pack-grid { grid-template-columns: minmax(0, 1fr); }
}

/* ── Secondary demo link on clinic plan cards ─────────────────────────────
   A clinic buyer evaluating a $186-and-up commitment on behalf of a clinical
   team is far more likely to want a walkthrough than a self-serve trial, and
   the page previously offered them only the trial button. Kept as a quiet
   text link rather than a second button so the card still has one primary
   action. */
.bui-plan-demo-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--bui-space-1);
  width: 100%;
  margin-top: var(--bui-space-3);
  font-size: var(--bui-text-xs);
  font-weight: var(--bui-fw-semibold);
  color: var(--bui-ink-500);
  text-decoration: none;
}

.bui-plan-demo-link:hover,
.bui-plan-demo-link:focus-visible {
  color: var(--bui-primary-700);
  text-decoration: underline;
}