.bimmerle_mindmap {
  --bmm-accent: #b80e1d;
  --bmm-line: rgba(255, 255, 255, 0.25);
  --bmm-text: #fff;
  --bmm-text-muted: rgba(255, 255, 255, 0.7);

  width: 100%;
  max-width: 1800px;
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  margin: 0 auto;
  color: var(--bmm-text);
  text-align: center;
}

/* the intro sequence itself is a GSAP timeline built in bimmerle_mindmap.js;
   these rules only carry static layout, plus the transform-origins the
   timeline's scale tweens need */
.bmm-center-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.bmm-center {
  max-width: 350px;
  margin-top: 2rem;
  /* aspect-ratio: 1 / 1; */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  border-radius: 50%;
  /* border: 1px solid rgba(255, 255, 255, 0.35); */
  /* background: #1a1a1a; */
}

.bmm-center-image {
  /* max-width: 65%; */
  /* max-height: 55%; */
  width: auto;
  height: auto;
  object-fit: contain;
}

.bmm-center-label {
  font-size: clamp(1rem, 1.7vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.bmm-center-divider {
  display: block;
  width: 1.6em;
  height: 2px;
  margin-top: 0.6em;
  background: var(--bmm-accent);
}

/* vertical stem from the center circle down to the shared horizontal bar */
.bmm-center-stem {
  display: block;
  width: 1px;
  height: 2rem;
  margin-top: 0.5rem;
  background: var(--bmm-line);
  transform-origin: top center;
}

/* horizontal bar, inset so its ends line up with the outer nodes' centers */
.bmm-tree-bar {
  display: block;
  height: 1px;
  margin: 0 12.5%;
  background: var(--bmm-line);
}

.bmm-row {
  display: flex;
  align-items: stretch;
  margin-top: 1rem;
}

.bmm-node {
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 1.5rem 2rem;
  border-right: 1px solid rgba(255, 255, 255, 0.15);
  /* border right is a vertical gradient */
  border-image: linear-gradient(
      to bottom,
      rgba(255, 255, 255, 0),
      rgba(255, 255, 255, 0.15),
      rgba(255, 255, 255, 0)
    )
    1;
}

.bmm-node:last-child {
  border-right: none;
}

/* the whole card (circle + text) is one link; the stem/dot stay outside it */
.bmm-node-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  color: inherit;
  text-decoration: none;
}

/* vertical stem from the horizontal bar down to this node's circle, with the red dot at the join */
.bmm-node-stem {
  display: block;
  width: 1px;
  height: 2rem;
  background: var(--bmm-line);
  transform: translateY(-1rem);
  transform-origin: top center;
}

.bmm-dot {
  display: block;
  width: 0.75rem;
  height: 0.75rem;
  margin-top: -0.5rem;
  border-radius: 50%;
  background: var(--bmm-accent);
  transform: translateY(-1rem);
}

.bmm-node-circle {
  /* width: 9rem; */
  aspect-ratio: 1 / 1;
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  /* border: 1px solid rgba(255, 255, 255, 0.25); */
  /* background: #1a1a1a; */
  transition:
    filter 0.45s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.bmm-node-card:hover .bmm-node-circle {
  filter: drop-shadow(0 0 0.75rem rgba(226, 35, 26, 0.55));
  transform: translateY(-0.5rem);
}

.bmm-node-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.bmm-node-card:hover .bmm-node-image {
  transform: scale(1.08);
}

.bmm-node-text {
  margin-top: 1.5rem;
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.bmm-node-card:hover .bmm-node-text {
  transform: translateY(-0.5rem);
}

.bmm-node-title {
  margin: 0;
  font-size: clamp(1.4rem, 1.6vw, 1.8rem);/*clamp(0.85rem, 1.1vw, 1.8rem);*/
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.3;
  text-transform: uppercase;
}

.bmm-node-divider {
  display: block;
  width: 1.6em;
  height: 2px;
  margin: 0.6em auto 0.8em;
  background: var(--bmm-accent);
}

.bmm-node-desc {
  margin: 0 0 0.9em;
  font-size: clamp(0.75rem, 0.95vw, 0.95rem);
  line-height: 1.5;
  color: var(--bmm-text-muted);
}

.bmm-node-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bmm-text);
  transition: color 0.3s ease;
}

.bmm-node-card:hover .bmm-node-link {
  color: var(--bmm-accent);
}

.bmm-node-arrow {
  transition: transform 0.2s ease;
}

.bmm-node-card:hover .bmm-node-arrow {
  transform: translateX(0.3em);
}

@media (prefers-reduced-motion: reduce) {
  .bmm-node-circle,
  .bmm-node-image,
  .bmm-node-text,
  .bmm-node-link {
    transition: none;
  }

  .bmm-node-card:hover .bmm-node-circle {
    filter: none;
    transform: none;
  }

  .bmm-node-card:hover .bmm-node-image {
    transform: none;
  }

  .bmm-node-card:hover .bmm-node-text {
    transform: none;
  }

  .bmm-node-card:hover .bmm-node-link {
    color: var(--bmm-text);
  }
}

@media (max-width: 781px) {
  .bmm-center-stem,
  .bmm-tree-bar,
  .bmm-node-stem,
  .bmm-dot {
    display: none;
  }

  .bmm-row {
    flex-direction: column;
    align-items: center;
  }

  .bmm-node {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    padding: 2rem 0;
  }

  .bmm-node:last-child {
    border-bottom: none;
  }

  .bmm-node-circle {
    margin-top: 0;
  }

  .bmm-node-link {
    justify-content: center;
  }
}