.learning-diagram {
  --diagram-ink: var(--art-ink, var(--ink));
  --diagram-accent: var(--accent, var(--art-leaf));
  --diagram-surface: var(--surface, var(--paper));
  color: var(--diagram-ink);
  width: 100%;
  min-width: 0;
  font-size: 20px;
  line-height: 1.65;
  overflow-wrap: anywhere;
}
.learning-diagram *, .learning-diagram *::before, .learning-diagram *::after { box-sizing: border-box; }
.learning-diagram p { margin: 0; }
.learning-diagram svg { display: block; width: 100%; height: 100%; }
.learning-diagram button { font-size: inherit; line-height: inherit; }
.diagram-prices { display: grid; grid-template-columns: repeat(var(--diagram-item-count), minmax(0, 1fr)); gap: 13px; }
.diagram-price-card { min-width: 0; display: flex; flex-direction: column; align-items: center; text-align: center; border: 1px solid var(--line); border-radius: 17px; padding: 18px 12px 16px; background: var(--diagram-surface); }
.diagram-price-picture { display: block; flex: 0 0 auto; width: 83px; height: 83px; max-width: 100%; margin-bottom: 10px; }
.diagram-price-label { color: var(--diagram-ink); font-size: 21px; font-weight: 550; line-height: 1.6; flex: 1 0 auto; }
.diagram-price-amount { display: flex; align-items: baseline; justify-content: center; flex-wrap: wrap; gap: 3px 6px; margin-top: 5px !important; color: var(--diagram-accent); }
.diagram-price-amount .diagram-value { font-size: 30px; line-height: 1.5; font-weight: 700; font-variant-numeric: tabular-nums; }
.diagram-unit { display: inline; font-size: 20px; line-height: 1.6; font-weight: 500; }
.diagram-table { border: 1px solid var(--line); border-radius: 16px; background: var(--paper); overflow: clip; }
.diagram-data-table { width: 100%; table-layout: fixed; border-collapse: collapse; border-spacing: 0; color: var(--diagram-ink); font-size: 20px; line-height: 1.65; text-align: center; }
.diagram-data-table th, .diagram-data-table td { min-width: 0; overflow-wrap: anywhere; word-break: normal; padding: 14px 10px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); vertical-align: middle; }
.diagram-data-table th { font-size: inherit; font-weight: 600; }
.diagram-data-table tbody td { font-size: 22px; }
.diagram-data-table thead th { background: var(--diagram-surface); color: var(--diagram-accent); }
.diagram-data-table tbody th { background: var(--diagram-surface); font-weight: 500; }
.diagram-data-table tr > :last-child { border-right: 0; }
.diagram-data-table tbody tr:last-child > * { border-bottom: 0; }
.diagram-numeric-cell { font-variant-numeric: tabular-nums; font-size: 23px; }
.diagram-route { display: grid; grid-template-columns: repeat(var(--route-columns), minmax(0, 1fr)); align-items: stretch; gap: 0; padding: 19px 17px 22px; background: var(--diagram-surface); border: 1px solid var(--line); border-radius: 17px; }
.diagram-route-stop, .diagram-route-segment { min-width: 0; display: flex; align-items: center; flex-direction: column; }
.diagram-route-label, .diagram-route-distance { display: flex; align-items: center; justify-content: center; flex: 1 0 auto; min-height: 57px; width: 100%; padding: 0 3px 10px; font-size: 22px; line-height: 1.55; text-align: center; }
.diagram-route-label { color: var(--diagram-ink); font-weight: 550; }
.diagram-route-marker { display: block; width: 20px; height: 20px; flex: 0 0 auto; background: var(--art-paper, var(--paper)); border: 4px solid var(--diagram-accent); border-radius: 50%; }
.diagram-route-track { display: block; width: 100%; flex: 0 0 auto; height: 3px; margin: 8.5px 0; background: var(--diagram-accent); position: relative; }
.diagram-route-track::after { content: ''; position: absolute; right: 1px; top: -3px; width: 8px; height: 8px; border-top: 2px solid var(--diagram-accent); border-right: 2px solid var(--diagram-accent); transform: rotate(45deg); }
.diagram-route-distance { flex-wrap: wrap; align-content: center; gap: 0 3px; color: var(--diagram-accent); }
.diagram-route-distance .diagram-value { font-size: 24px; font-weight: 650; font-variant-numeric: tabular-nums; }
.diagram-route-distance .diagram-unit { font-size: 20px; }
.diagram-pictograph { border: 1px solid var(--line); border-radius: 17px; overflow: clip; background: var(--paper); }
.diagram-pictograph-key { padding: 13px 18px; border-bottom: 1px solid var(--line); background: var(--diagram-surface); font-size: 18px; line-height: 1.75; color: var(--diagram-accent); }
.diagram-pictograph-row { display: grid; grid-template-columns: minmax(76px, 1fr) minmax(0, 4fr); gap: 12px; align-items: center; padding: 17px 18px; border-bottom: 1px solid var(--line); }
.diagram-pictograph-row:last-child { border-bottom: 0; }
.diagram-pictograph-label { font-size: 20px; font-weight: 550; line-height: 1.7; color: var(--diagram-ink); }
.diagram-pictograph-symbols { display: flex; align-items: center; flex-wrap: wrap; min-width: 0; gap: 8px; }
.diagram-pictograph-picture { display: block; flex: 0 0 44px; width: 44px; height: 44px; }
.diagram-pictograph-zero { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; color: var(--diagram-accent); font-size: 24px; font-weight: 600; }

@media (max-width: 680px) {
  .diagram-prices { gap: 10px; }
  .diagram-price-card { padding: 15px 9px 13px; }
  .diagram-price-picture { width: 72px; height: 72px; }
  .diagram-price-label { font-size: 20px; }
  .diagram-data-table th, .diagram-data-table td { padding: 12px 8px; }
  .diagram-pictograph-row { grid-template-columns: minmax(68px, 1fr) minmax(0, 3fr); padding: 15px; }
}

@media (max-width: 540px) {
  .diagram-prices { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .diagram-prices[data-item-count="1"] { grid-template-columns: minmax(0, 1fr); }
  .diagram-prices[data-item-count="1"] .diagram-price-card { flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 5px 16px; }
  .diagram-prices[data-item-count="1"] .diagram-price-picture { margin: 0; }
  .diagram-prices[data-item-count="1"] .diagram-price-label { flex: 0 1 auto; }
  .diagram-prices[data-item-count="1"] .diagram-price-amount { flex: 0 1 auto; }
  .diagram-price-picture { width: 68px; height: 68px; }
  .diagram-price-card { padding: 14px 8px; border-radius: 13px; }
  .diagram-price-amount .diagram-value { font-size: 28px; }
  .diagram-unit { font-size: 19px; }
  .diagram-data-table { font-size: 18px; line-height: 1.7; }
  .diagram-data-table th, .diagram-data-table td { padding: 11px 6px; }
  .diagram-data-table .diagram-numeric-cell { font-size: 22px; }
  .diagram-route { display: flex; flex-direction: column; padding: 20px; }
  .diagram-route-stop { flex-direction: row-reverse; justify-content: flex-end; gap: 15px; align-items: center; }
  .diagram-route-label { width: auto; min-height: 0; flex: 0 1 auto; text-align: left; justify-content: flex-start; padding: 0; font-size: 22px; line-height: 1.6; }
  .diagram-route-marker { width: 20px; height: 20px; }
  .diagram-route-segment { flex-direction: row-reverse; justify-content: flex-end; gap: 24px; margin-left: 8.5px; min-height: 64px; align-items: center; }
  .diagram-route-track { flex: 0 0 3px; width: 3px; height: 52px; margin: 0; }
  .diagram-route-track::after { right: -2.5px; top: auto; bottom: 1px; transform: rotate(135deg); }
  .diagram-route-distance { width: auto; flex: 0 1 auto; min-height: 0; padding: 0; justify-content: flex-start; text-align: left; gap: 4px; }
  .diagram-route-distance .diagram-value, .diagram-route-distance .diagram-unit { font-size: 22px; }
  .diagram-pictograph-key { padding: 12px 14px; }
  .diagram-pictograph-row { grid-template-columns: minmax(0, 1fr); gap: 8px; padding: 14px; }
  .diagram-pictograph-symbols { gap: 7px; }
  .diagram-pictograph-picture { flex-basis: 44px; width: 44px; height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  .learning-diagram * { transition: none; animation: none; }
}