/* Responsive figures for the four-axis essay. Text stays in HTML so it wraps
   with the reader's font and language; only geometric marks live in SVG. */
.pu-figure, .pu-dialog {
  --pu-paper: #fafbf9;
  --pu-surface: #ffffff;
  --pu-ink: #202c35;
  --pu-muted: #50616e;
  --pu-line: #cbd4d8;
  --pu-blue: #e8f1f8;
  --pu-gold: #f8f0d9;
  --pu-purple: #efebf6;
  --pu-red: #f8e9e5;
  --pu-accent: #226794;
  --pu-amber: #966014;
  --pu-grid: #d6dfe4;
  color: var(--pu-ink);
  color-scheme: light;
}
[data-md-color-scheme="slate"] .pu-figure,
[data-md-color-scheme="slate"] .pu-dialog {
  --pu-paper: #171e26;
  --pu-surface: #202a35;
  --pu-ink: #edf1f5;
  --pu-muted: #bdc8d2;
  --pu-line: #4c5c6b;
  --pu-blue: #213b50;
  --pu-gold: #3e3522;
  --pu-purple: #332e48;
  --pu-red: #432e2b;
  --pu-accent: #93cffa;
  --pu-amber: #f2c777;
  --pu-grid: #465665;
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  html[lang="ko"] .pu-figure, html[lang="ko"] .pu-dialog {
    --pu-paper: #171e26; --pu-surface: #202a35; --pu-ink: #edf1f5;
    --pu-muted: #bdc8d2; --pu-line: #4c5c6b; --pu-blue: #213b50;
    --pu-gold: #3e3522; --pu-purple: #332e48; --pu-red: #432e2b;
    --pu-accent: #93cffa; --pu-amber: #f2c777; --pu-grid: #465665;
    color-scheme: dark;
  }
}
.pu-figure {
  container-type: inline-size;
  box-sizing: border-box;
  padding: clamp(16px, 3vw, 28px);
  border: 1px solid var(--pu-line);
  border-radius: 12px;
  background: var(--pu-paper);
  font-family: var(--md-text-font-family, "Apple SD Gothic Neo", Arial, sans-serif);
  font-size: max(16px, 1em);
  line-height: 1.55;
  text-align: left;
  word-break: normal;
  overflow-wrap: anywhere;
}
.pu-figure *, .pu-dialog * { box-sizing: border-box; }
.pu-figure[lang="ko"] { word-break: keep-all; }
.pu-figure .pu-title {
  font-size: clamp(22px, 1.45em, 30px);
  font-weight: 680;
  line-height: 1.25;
  letter-spacing: -.025em;
  text-wrap: balance;
}
.pu-figure .pu-subtitle { margin-top: 10px; color: var(--pu-muted); }
.pu-figure .pu-body { margin-top: 24px; }
.pu-figure .pu-columns { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.pu-figure .pu-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.pu-figure .pu-panel {
  min-width: 0;
  padding: 22px;
  background: var(--pu-surface);
  border: 1px solid var(--pu-line);
  border-radius: 8px;
}
.pu-figure .pu-blue { background: var(--pu-blue); }
.pu-figure .pu-gold { background: var(--pu-gold); }
.pu-figure .pu-purple { background: var(--pu-purple); }
.pu-figure .pu-red { background: var(--pu-red); }
.pu-figure .pu-label { color: var(--pu-muted); font-size: max(14px, .85em); line-height: 1.5; }
.pu-figure .pu-panel-title { font-size: 1.12em; font-weight: 650; line-height: 1.4; }
.pu-figure .pu-panel-title + .pu-copy { margin-top: 10px; }
.pu-figure .pu-label + .pu-panel-title { margin-top: 6px; }
.pu-figure .pu-copy, .pu-figure .pu-ranks { margin-top: 16px; }
.pu-figure .pu-note { margin-top: 16px; color: var(--pu-muted); font-size: max(14px, .9em); font-weight: 400; }
.pu-figure .pu-footer { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--pu-line); color: var(--pu-muted); }
.pu-figure .pu-ranks { list-style: none; padding: 0; margin-bottom: 0; }
.pu-figure .pu-ranks li { display: flex; align-items: baseline; gap: 12px; margin: 0; padding: 10px 0; border-bottom: 1px solid var(--pu-line); }
.pu-figure .pu-ranks li:last-child { border-bottom: 0; padding-bottom: 0; }
.pu-figure .pu-rank { flex: 0 0 24px; color: var(--pu-muted); font-variant-numeric: tabular-nums; }
.pu-figure .pu-model { font-weight: 650; min-width: 0; }
.pu-figure .pu-bits { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-top: 20px; }
.pu-figure .pu-bit { border: 1px solid var(--pu-line); border-radius: 4px; padding: 6px 10px; text-align: center; font-variant-numeric: tabular-nums; }
.pu-figure .pu-number { display: block; font-size: 1.8em; font-weight: 650; line-height: 1.25; margin-top: 18px; font-variant-numeric: tabular-nums; }
.pu-figure .pu-flow { margin: 18px 0; text-align: center; color: var(--pu-muted); }
.pu-figure .pu-parcels { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.pu-figure .pu-parcel { padding: 18px 12px; border: 1px solid var(--pu-line); border-radius: 6px; text-align: center; }
.pu-figure .pu-parcel strong { display: block; }
.pu-figure .pu-table { width: 100%; margin: 20px 0 0; border-collapse: collapse; font-size: 1em; line-height: 1.5; background: transparent; box-shadow: none; }
.pu-figure .pu-table :is(th, td) { padding: 14px 10px; border-bottom: 1px solid var(--pu-line); color: var(--pu-ink); text-align: left; background: transparent; white-space: normal; min-width: 0; }
.pu-figure .pu-table th { font-weight: 650; }
.pu-figure .pu-result { margin-top: 18px; font-weight: 650; }
.pu-figure .pu-result + .pu-note { margin-top: 8px; }
.pu-figure .pu-case { display: grid; grid-template-columns: 30px 1fr; gap: 16px; align-items: start; }
.pu-figure .pu-case + .pu-case { margin-top: 16px; }
.pu-figure .pu-case-letter { font-size: 1.4em; font-weight: 650; }
.pu-figure .pu-regions { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.pu-figure .pu-region { padding: 14px; border: 1px solid var(--pu-line); border-radius: 5px; }
.pu-figure .pu-region strong { display: block; font-size: 1.15em; }
.pu-figure .pu-summary { margin-top: 12px; display: flex; flex-wrap: wrap; gap: 6px 24px; }
.pu-figure .pu-scale + .pu-scale { margin-top: 28px; }
.pu-figure .pu-scale-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 20px; margin-bottom: 12px; }
.pu-figure .pu-segments { display: grid; grid-template-columns: repeat(3, 1fr); }
.pu-figure .pu-segments span { padding: 10px 0; border: 1px solid var(--pu-line); text-align: center; }
.pu-figure .pu-segments-wide { grid-template-columns: repeat(12,1fr); height: 40px; }
.pu-figure .pu-ticks { display: flex; justify-content: space-between; gap: 8px; margin-top: 10px; font-size: max(14px,.9em); font-variant-numeric: tabular-nums; }
.pu-figure .pu-tree { width: 100%; height: auto; margin-top: 18px; }
.pu-figure .pu-tree path, .pu-figure .pu-tree line { vector-effect: non-scaling-stroke; }
.pu-figure .pu-formula { margin-top: 14px; display: flex; flex-wrap: wrap; align-items: baseline; justify-content: center; gap: 6px 10px; font-size: 1.2em; font-weight: 600; }
.pu-figure .pu-formula span { white-space: nowrap; }
.pu-figure .pu-plot-pair { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 24px; align-items: center; }
.pu-figure .pu-chart { min-width: 0; }
.pu-figure .pu-chart svg { display: block; width: 100%; height: auto; max-width: 460px; margin: 12px auto; }
.pu-figure .pu-chart svg text { font-family: Arial,sans-serif !important; }
.pu-figure .pu-axis-label { font-size: 1em; color: var(--pu-muted); }
.pu-figure .pu-axis-label:last-child { text-align: center; }
.pu-figure .pu-legend { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-top: 16px; }
.pu-figure .pu-legend span { display: flex; align-items: center; gap: 9px; }
.pu-figure .pu-key { width: 26px; border-top: 3px solid var(--pu-accent); flex-shrink: 0; }
.pu-figure .pu-key-dash { border-top: 2px dashed var(--pu-muted); }
.pu-figure .pu-measures { display: grid; gap: 14px; }
.pu-figure .pu-measure { padding: 16px; border: 1px solid var(--pu-line); border-radius: 7px; }
.pu-figure .pu-measure strong { display: block; margin-top: 7px; font-size: 1.25em; font-variant-numeric: tabular-nums; }
.pu-figure .pu-energy-section + .pu-energy-section { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--pu-line); }
.pu-figure .pu-ops { display: grid; gap: 14px; }
.pu-figure .pu-op { display: grid; grid-template-columns: 28px 1fr; gap: 9px; }
.pu-figure .pu-op strong { display: block; font-variant-numeric: tabular-nums; }
.pu-toolbar { display: flex; justify-content: flex-end; margin-top: 10px; }
figure:has(.pu-figure) > figcaption {
  max-width: none;
  margin: 14px 0 0;
  text-align: left;
  font-style: normal;
  font-size: max(15px, .9em);
  line-height: 1.65;
  color: inherit;
}
.pu-expand, .pu-close { font: inherit; font-size: 14px; cursor: pointer; border: 1px solid currentColor; border-radius: 5px; background: transparent; color: inherit; padding: 8px 13px; }
.pu-expand:focus-visible, .pu-close:focus-visible { outline: 3px solid #438fc1; outline-offset: 3px; }
.pu-dialog { width: min(1140px, calc(100vw - 24px)); max-width: none; max-height: calc(100dvh - 24px); border: 1px solid var(--pu-line); border-radius: 10px; background: var(--pu-paper); padding: 16px; }
.pu-dialog::backdrop { background: rgb(0 0 0 / .72); }
.pu-dialog-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 14px; font-size: 16px; }
.pu-dialog-body { overflow: auto; max-height: calc(100dvh - 130px); overscroll-behavior: contain; }
.pu-dialog-body img { display: block; max-width: none; width: max(100%, 1000px); height: auto; }
.pu-dialog-body .pu-figure { font-size: 18px; }
body.pu-modal-open { overflow: hidden; }
body.folded .pu-figure, body.folded .pu-toolbar { display: none; }
@container (max-width: 680px) {
  .pu-figure .pu-steps { grid-template-columns: 1fr; }
  .pu-figure .pu-plot-pair { grid-template-columns: 1fr; }
}
@container (max-width: 540px) {
  .pu-figure .pu-columns { grid-template-columns: 1fr; }
  .pu-figure .pu-panel { padding: 18px; }
  .pu-figure .pu-parcels { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .pu-figure .pu-table :is(th, td) { padding: 12px 6px; }
  .pu-figure .pu-case { grid-template-columns: 24px 1fr; gap: 8px; }
  .pu-figure .pu-region { padding: 10px; }
}
@media print { .pu-toolbar, .pu-dialog { display: none; } .pu-figure { break-inside: avoid; } }