/* Shared educational SVG system */
.edu-visual{
--visual-canvas:var(--white);--visual-surface:var(--green-50);--visual-surface-alt:var(--cream-deep);
--visual-ink:var(--ink);--visual-muted:var(--muted);--visual-primary:var(--green-700);
--visual-primary-strong:var(--green-900);--visual-secondary:#a97818;--visual-border:var(--line);
--visual-stroke:2;--visual-radius:16px;--visual-space:8px;
margin:clamp(2rem,5vw,3.5rem) 0;color:var(--visual-ink)
}
.edu-visual__frame{overflow:hidden;border:1px solid var(--visual-border);border-radius:var(--radius);background:var(--visual-canvas);box-shadow:var(--shadow-xs)}
.edu-visual svg{width:100%;height:auto;font-family:var(--sans);text-rendering:geometricPrecision}
.edu-visual .v-card{fill:var(--visual-surface);stroke:var(--visual-border);stroke-width:var(--visual-stroke)}
.edu-visual .v-card--primary{fill:var(--visual-primary-strong);stroke:var(--visual-primary-strong)}
.edu-visual .v-card--accent{fill:var(--visual-surface-alt);stroke:var(--visual-secondary)}
.edu-visual .v-title{fill:var(--visual-ink);font:700 22px/1.25 var(--sans)}
.edu-visual .v-label{fill:var(--visual-primary-strong);font:750 17px/1.3 var(--sans)}
.edu-visual .v-copy{fill:var(--visual-muted);font:500 15px/1.4 var(--sans)}
.edu-visual .v-note{fill:var(--visual-muted);font:650 13px/1.35 var(--sans);letter-spacing:.02em}
.edu-visual .v-axis{fill:none;stroke:var(--visual-muted);stroke-width:2;stroke-linecap:round}
.edu-visual .v-divider{fill:none;stroke:var(--visual-border);stroke-width:2}
.edu-visual .v-data{fill:none;stroke:var(--visual-primary);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.edu-visual .v-data-point{fill:var(--visual-canvas);stroke:var(--visual-primary);stroke-width:2.5}
.edu-visual .v-trend{fill:none;stroke:var(--visual-secondary);stroke-width:5;stroke-linecap:round}
.edu-visual .v-concept{fill:none;stroke:var(--visual-primary-strong);stroke-width:3;stroke-linecap:round;stroke-dasharray:11 8}
.edu-visual .v-fill-primary{fill:var(--visual-primary)}
.edu-visual .v-fill-secondary{fill:var(--visual-secondary)}
.edu-visual .v-fill-alt{fill:var(--visual-surface-alt)}
.edu-visual .v-on-dark{fill:var(--white)}
.edu-visual .v-on-dark-muted{fill:var(--green-100)}
.edu-visual .v-connector--both{marker-start:url(#edu-arrow);marker-end:url(#edu-arrow)}
.edu-visual .v-connector{fill:none;stroke:var(--visual-primary);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;marker-end:url(#edu-arrow)}
.edu-visual .v-connector--optional{stroke:var(--visual-muted);stroke-dasharray:7 7;marker-end:url(#edu-arrow-muted)}
.edu-visual .v-icon{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.edu-visual .v-step{fill:var(--visual-primary);font:800 15px/1 var(--sans)}
.edu-visual a .v-card{transition:fill .2s var(--ease),stroke .2s var(--ease)}
.edu-visual a:hover .v-card,.edu-visual a:focus .v-card{fill:var(--green-100);stroke:var(--green-700)}
.edu-visual a:focus{outline:none}
.edu-visual a:focus .v-focus{fill:none;stroke:var(--focus);stroke-width:4}
.edu-visual__caption{margin:.85rem .25rem 0;color:var(--muted);font-size:.875rem;line-height:1.55}
.edu-visual__caption strong{color:var(--ink)}
.edu-visual__legend{display:flex;flex-wrap:wrap;gap:.65rem 1.2rem;margin:.85rem 0 0;padding:0;list-style:none;color:var(--muted);font-size:.82rem}
.edu-visual__legend span{display:inline-block;width:22px;border-top:2px solid var(--visual-primary);vertical-align:middle;margin-right:.4rem}
.edu-visual__legend .is-optional{border-top-style:dashed;border-color:var(--visual-muted)}
.edu-visual--compact{max-width:760px;margin-inline:auto}
.edu-visual-defs{position:absolute;width:0;height:0;overflow:hidden}
@media(prefers-color-scheme:dark){
.edu-visual{--visual-canvas:#13261f;--visual-surface:#1b3329;--visual-surface-alt:#342d20;--visual-ink:#edf5f0;--visual-muted:#bfd0c6;--visual-primary:#7fc29b;--visual-primary-strong:#23583f;--visual-secondary:#e1bb61;--visual-border:#496258}
.edu-visual__frame{box-shadow:none}.edu-visual .v-on-dark{fill:#fff}.edu-visual .v-on-dark-muted{fill:#d6e8dd}
}
@media(max-width:620px){
.edu-visual{margin-block:2rem}.edu-visual__frame{margin-inline:-.25rem;border-radius:var(--radius-sm)}
.edu-visual__caption{font-size:.82rem}.edu-visual .v-title{font-size:26px}.edu-visual .v-label{font-size:21px}.edu-visual .v-copy{font-size:18px}
.edu-visual .v-note{font-size:16px}
}
@media print{
.edu-visual{--visual-canvas:#fff;--visual-surface:#f5f5f5;--visual-surface-alt:#fafafa;--visual-ink:#111;--visual-muted:#333;--visual-primary:#1f5138;--visual-primary-strong:#1f5138;--visual-secondary:#555;--visual-border:#777;break-inside:avoid}
.edu-visual__frame{box-shadow:none}.edu-visual a{text-decoration:none}.edu-visual__caption{color:#222}
}