/* Reusable, token-driven flowcharts for article content. */
.flowchart-image {
  margin: var(--space-12) 0;
}

.flowchart-image picture {
  display: block;
}

.flowchart-image img {
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
}

.flowchart-image figcaption {
  margin-top: var(--space-3);
  color: var(--text-3);
  font-family: var(--mono);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.flowchart {
  margin: var(--space-12) 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  overflow: hidden;
}

.flowchart-caption {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
}

.flowchart-caption-label,
.flowchart-edge-label,
.flowchart-node-kicker {
  font-family: var(--mono);
  font-size: var(--font-size-xs);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.flowchart-caption-label,
.flowchart-edge-label {
  color: var(--accent);
}

.flowchart-caption strong {
  color: var(--text-1);
  font-size: var(--font-size-2xl);
  line-height: 1.35;
}

.flowchart-caption small {
  color: var(--text-3);
  font-size: var(--font-size-md);
  line-height: 1.6;
}

.flowchart-body {
  padding: var(--space-10) var(--space-6);
}

.flowchart-node {
  position: relative;
  display: grid;
  gap: var(--space-2);
  padding: var(--space-5);
  border: 1px solid var(--border-2);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--bg-1);
  color: var(--text-1);
}

.flowchart-node strong {
  font-size: var(--font-size-base);
  line-height: 1.45;
}

.flowchart-node small {
  color: var(--text-2);
  font-size: var(--font-size-md);
  line-height: 1.55;
}

.flowchart-node-kicker {
  color: var(--text-3);
}

.flowchart-root {
  position: relative;
  width: min(75%, 36rem);
  margin: 0 auto;
  padding-bottom: var(--space-10);
}

.flowchart-root::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  height: var(--space-10);
  border-left: 1px solid var(--border-2);
}

.flowchart-branches {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-6);
  padding-top: var(--space-8);
}

.flowchart-branches::before {
  content: "";
  position: absolute;
  top: 0;
  right: 25%;
  left: 25%;
  border-top: 1px solid var(--border-2);
}

.flowchart-branch {
  position: relative;
}

.flowchart-branch::before {
  content: "";
  position: absolute;
  top: calc(-1 * var(--space-8));
  left: 50%;
  height: var(--space-8);
  border-left: 1px solid var(--border-2);
}

.flowchart-branch > .flowchart-edge-label {
  position: absolute;
  top: calc(-1 * var(--space-6));
  left: 50%;
  z-index: 1;
  padding: 0 var(--space-2);
  background: var(--bg);
  transform: translateX(-50%);
}

.flowchart-outcomes {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-8);
  padding-top: var(--space-8);
}

.flowchart-outcomes::before {
  content: "";
  position: absolute;
  top: 0;
  right: 25%;
  left: 25%;
  border-top: 1px solid var(--border-2);
}

.flowchart-outcome::before {
  content: "";
  position: absolute;
  top: calc(-1 * var(--space-8));
  left: 50%;
  height: var(--space-8);
  border-left: 1px solid var(--border-2);
}

.flowchart-outcome .flowchart-edge-label {
  /* A span is inline by default, and vertical margin on an inline box does nothing.
     Without this the margin-bottom below was inert: the stylesheet asked for space and
     the browser silently discarded it. Found by reading computed style in a browser,
     which is the half of the render gate that source review cannot replace. */
  display: block;
  margin-bottom: var(--space-1);
}

.flowchart-note {
  margin: 0;
  padding: 0 var(--space-6) var(--space-5);
  color: var(--text-3);
  font-size: var(--font-size-md);
  line-height: 1.6;
}

@media (max-width: 640px) {
  .flowchart-caption,
  .flowchart-body {
    padding-right: var(--space-4);
    padding-left: var(--space-4);
  }

  .flowchart-root {
    width: 100%;
    padding-bottom: var(--space-8);
  }

  .flowchart-root::after {
    height: var(--space-8);
  }

  .flowchart-branches {
    grid-template-columns: 1fr;
    gap: var(--space-10);
    padding-top: 0;
  }

  .flowchart-branches::before,
  .flowchart-branch::before {
    display: none;
  }

  .flowchart-branch {
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-2);
  }

  .flowchart-branch > .flowchart-edge-label {
    top: var(--space-1);
    left: var(--space-4);
    padding: 0 var(--space-2) 0 0;
    transform: none;
  }

  .flowchart-note {
    padding-right: var(--space-4);
    padding-left: var(--space-4);
  }
}