/* PASS 4C — Ponds, Irrigation & Tree Spacing */
.water-hero-visual{background:linear-gradient(145deg,#e8f4f3,#f7f2df);border:1px solid #c8d9d6;border-radius:26px;padding:16px;box-shadow:var(--shadow-sm)}
.water-hero-visual svg{display:block;width:100%;height:auto}.water-fill{fill:#bfe1df}.water-deep{fill:#73b6b3}.water-line{stroke:#2d7774;stroke-width:3;fill:none}.water-ground{fill:#d8d0aa}.tree-fill{fill:#6a925e}.tree-trunk{fill:#8a6644}.tree-gridline{stroke:#7aa38b;stroke-width:1.5;stroke-dasharray:5 4}.tree-dot{fill:#2f7051}.flow-arrow{stroke:#2d7774;stroke-width:3;fill:none;marker-end:url(#arrow)}
.calc-choice{display:flex;gap:10px;flex-wrap:wrap;margin:4px 0 16px}.calc-choice label{display:flex;align-items:center;gap:7px;background:#fff;border:1px solid #cbd8cf;border-radius:12px;padding:9px 12px;font-weight:760}.calc-choice input{accent-color:#2f7051}
.result-wide{grid-column:1/-1}.data-table{width:100%;border-collapse:collapse;margin:18px 0}.data-table th,.data-table td{padding:10px 12px;border-bottom:1px solid #dbe4dc;text-align:left}.data-table th{background:#f2f7f0;color:var(--forest)}.math-callout{background:#eef7f5;border:1px solid #c9ded9;border-radius:16px;padding:17px 19px;margin:18px 0}.math-callout strong{color:#1e5c59}.scope-note{background:#fdf6e9;border:1px solid #e9d1a9;border-radius:15px;padding:16px 18px;margin:18px 0}.scope-note strong{color:#6b4c22}.unit-row{display:grid;grid-template-columns:1fr 180px;gap:12px}.mode-intro{margin:-2px 0 17px;color:#53665c;font-size:.92rem}.micro-note{font-size:.78rem;color:#66776f;margin-top:5px}.metric-badge{display:inline-flex;align-items:center;gap:6px;background:#e7f4ef;border:1px solid #c7ddd3;border-radius:999px;padding:6px 10px;font-size:.78rem;font-weight:850;color:#245d48}.imperial-note{font-size:.82rem;color:#5f7069;margin-top:8px}.mini-equation{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f3f7f2;border:1px solid #d7e1d8;border-radius:10px;padding:9px 11px;display:inline-block;margin:6px 0}
@media(max-width:620px){.unit-row{grid-template-columns:1fr}.data-table{font-size:.86rem}.data-table th,.data-table td{padding:8px 7px}.calc-choice{display:grid;grid-template-columns:1fr}}