.bp-layout {
  display: grid;
  grid-template-columns: minmax(0, 22rem) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

@media (max-width: 1000px) {
  .bp-layout { grid-template-columns: minmax(0, 1fr); }
}

.stat-inputs { display: grid; gap: 0 12px; }
.pct { display: flex; align-items: center; gap: 6px; }
.pct input { max-width: 8rem; }
.pct span { color: var(--text-dim); }

.bp-results { display: flex; flex-direction: column; gap: 16px; }

/* Each stat is shown like a tooltip: black panel, centred summary. */
.bp-card {
  background: var(--tooltip);
  border: 1px solid #3b3b3b;
  padding: 20px 24px;
  font-variant-numeric: lining-nums tabular-nums;
}
.bp-card h2 { font-size: var(--step-1); color: var(--q-unique); margin-bottom: 8px; }
.bp-card p { margin: 0; }

.bp-summary { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 16px; }
.bp-frames { color: var(--q-normal); }
.bp-big { font-family: var(--font-display); font-size: var(--step-4); line-height: 1; }
.bp-next { margin-top: 8px !important; color: var(--q-magic); }
.bp-max { color: var(--q-normal); }
.bp-card .small { margin-top: 10px; font-size: var(--step--1); }

/* The ladder: every breakpoint as a step; reached steps filled in. */
.bp-ladder {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}
.bp-ladder li {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 3.4rem;
  padding: 6px 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text-dim);
}
.bp-ladder li.reached { background: rgb(201 180 124 / 0.14); border-color: rgb(201 180 124 / 0.4); color: var(--text); }
.bp-ladder li[aria-current="step"] { background: var(--q-unique); border-color: var(--q-unique); color: var(--stone); }
.bp-step-value { font-size: var(--step--1); }
.bp-step-frames { font-weight: 700; font-size: var(--step-1); line-height: 1.2; }

.explain { margin-top: 32px; max-width: 44rem; color: var(--text-dim); }
.explain summary { cursor: pointer; color: var(--text); }