/* Static chapter renderer: dense prose + reliable explanatory diagrams. */

.static-diagram {
  margin: 2.2rem 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  max-width: 100%;
}
.static-diagram .d-head {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
}
.static-diagram .d-title { font-weight: 750; }
.static-diagram .d-tag {
  font-size: .6rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--warm);
  background: var(--warm-wash);
  border-radius: 999px;
  padding: .14rem .5rem;
  font-weight: 750;
}
.static-diagram .d-body { padding: 1.1rem; }
.static-diagram .d-note {
  color: var(--ink-faint);
  font-size: .82rem;
  line-height: 1.55;
  padding: 0 1.1rem 1rem;
}

.diag-flow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(8rem, 1fr));
  gap: .75rem;
  align-items: stretch;
}
.flow-node {
  position: relative;
  min-height: 7rem;
  padding: .9rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
}
.flow-node b {
  display: block;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: .82rem;
  margin-bottom: .35rem;
}
.flow-node span { display: block; font-weight: 750; line-height: 1.35; }
.flow-node p { margin: .45rem 0 0; font-size: .82rem; color: var(--ink-faint); line-height: 1.5; }

.diag-stack { display: grid; gap: .45rem; }
.stack-row {
  display: grid;
  grid-template-columns: 7.5rem minmax(0, 1fr);
  gap: .8rem;
  padding: .7rem .85rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface-2);
}
.stack-row b { color: var(--accent); }
.stack-row span { color: var(--ink-soft); }

.diag-split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: .8rem;
}
.split-card {
  min-height: 10rem;
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface-2);
}
.split-card h4 { margin: 0 0 .5rem; font-size: 1rem; }
.split-card p { margin: 0; color: var(--ink-soft); font-size: .88rem; line-height: 1.6; }

.diag-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.diag-table th,
.diag-table td {
  padding: .65rem .75rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.diag-table th {
  color: var(--accent-ink);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.diag-table td { color: var(--ink-soft); }
.diag-table tr:last-child td { border-bottom: none; }

.diag-timeline {
  display: grid;
  gap: .75rem;
  border-left: 2px solid var(--accent);
  margin-left: .7rem;
  padding-left: 1rem;
}
.time-item {
  position: relative;
  padding: .75rem .9rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-2);
}
.time-item::before {
  content: "";
  position: absolute;
  left: -1.44rem;
  top: 1.05rem;
  width: .7rem;
  height: .7rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-wash);
}
.time-item b { color: var(--accent); font-family: var(--font-mono); }
.time-item span { display: block; font-weight: 750; margin: .18rem 0; }
.time-item p { margin: 0; color: var(--ink-faint); font-size: .84rem; line-height: 1.55; }

.diag-matrix {
  display: grid;
  grid-template-columns: 9rem repeat(var(--cols, 3), minmax(7rem, 1fr));
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.matrix-cell {
  padding: .72rem .8rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  min-width: 7rem;
  background: var(--surface);
}
.matrix-cell.head {
  background: var(--surface-2);
  color: var(--accent-ink);
  font-weight: 750;
}
.matrix-cell.good { background: var(--good-wash); }
.matrix-cell.warn { background: var(--warm-wash); }
.matrix-cell:last-child { border-right: none; }

.source-note {
  margin-top: 3rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--line);
  color: var(--ink-faint);
  font-size: .82rem;
  line-height: 1.6;
}

@media (max-width: 640px) {
  html, body { max-width: 100%; overflow-x: hidden; }
  .stack-row { grid-template-columns: 1fr; gap: .25rem; }
  .static-diagram .d-body { padding: .85rem; overflow-x: auto; max-width: 100%; }
  .diag-flow { grid-template-columns: 1fr; }
  .diag-matrix {
    grid-template-columns: 7rem repeat(var(--cols, 3), minmax(6.25rem, 1fr));
    width: max-content;
    min-width: 100%;
  }
  .matrix-cell { min-width: 6.25rem; }
}