.bm-install {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 1.25rem;
  width: min(calc(100% - 2rem), 1080px);
  margin: 0 auto;
  padding-bottom: 2rem;
}
.bm-card,
.bm-panel {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
}
.bm-card { padding: 2rem; }
.bm-card h2 {
  margin: 0 0 1.5rem;
  font-family: "Manrope", sans-serif;
  font-size: clamp(1.35rem, 2.2vw, 1.75rem);
  font-weight: 560;
  line-height: 1.2;
  letter-spacing: -.02em;
}
.bm-drop {
  display: grid;
  justify-items: center;
  gap: .8rem;
  padding: 2rem 1rem;
  border: 1.5px dashed var(--line);
  border-radius: 14px;
}
.bm-button {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  min-height: 52px;
  padding: 0 1.5rem;
  border-radius: 999px;
  color: #1a0d09;
  background: var(--orange);
  box-shadow: 0 12px 32px rgba(255, 94, 66, .28);
  font-size: 1rem;
  font-weight: 700;
  cursor: grab;
  transition: transform .2s ease, box-shadow .2s ease;
}
.bm-button span { font-size: .7rem; }
.bm-button:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(255, 94, 66, .36); }
.bm-button:active { cursor: grabbing; }
.bm-hint { margin: 0; color: var(--muted); font-size: .86rem; text-align: center; }
.bm-hint.is-active { color: var(--text); font-weight: 600; }
.bm-steps {
  display: grid;
  gap: .75rem;
  margin: 1.75rem 0 0;
  padding-left: 1.25rem;
  color: var(--muted);
}
.bm-steps strong { color: var(--text); font-weight: 600; }
.bm-steps kbd {
  display: inline-block;
  min-width: 1.5em;
  padding: 0 .35em;
  border: 1px solid var(--line);
  border-radius: 6px;
  font: 600 .78rem/1.6 "DM Sans", sans-serif;
  text-align: center;
}
.bm-mobile { display: none; margin: 1.25rem 0 0; color: var(--muted); font-size: .9rem; }
.bm-side { display: grid; gap: 1.25rem; align-content: start; }
.bm-panel { padding: 1.4rem 1.5rem; }
.bm-panel h3 { margin: 0 0 .35rem; font-family: "Manrope", sans-serif; font-size: 1.05rem; font-weight: 600; }
.bm-panel p { margin: 0; color: var(--muted); font-size: .9rem; line-height: 1.6; }
.bm-panel dl { margin: 1rem 0 0; }
.bm-panel dl > div { padding: .6rem 0; border-top: 1px solid var(--line); }
.bm-panel dt { font-size: .86rem; font-weight: 600; }
.bm-panel dd { margin: .1rem 0 0; color: var(--muted); font-size: .84rem; }

@media (max-width: 860px) {
  .bm-install { grid-template-columns: 1fr; }
}
@media (hover: none) and (pointer: coarse) {
  .bm-drop, .bm-steps { display: none; }
  .bm-mobile { display: block; }
}