:root{--reservoir-deep:#1f6f6b;--reservoir-mid:#2f8b86;--reservoir-tint:#dceae8;--reservoir-wash:#eef4f3;--nutrient-lime:#cde356;--nutrient-lime-dark:#a8bd3a;--slate-ink:#2c3338;--slate-soft:#55606a;--slate-faint:#8b959d;--slate-line:#d3dad8;--offwhite:#f1f4f3;--card:#ffffff;--ec-grid:rgba(31,111,107,0.12);--ec-rule:rgba(31,111,107,0.28);--ph-band:rgba(205,227,86,0.34);--ppfd-glow:rgba(205,227,86,0.14);--reservoir-shadow:0 1px 0 rgba(44,51,56,0.06);--font-display:"Sora","Segoe UI",system-ui,-apple-system,sans-serif;--font-prose:"Lora",Georgia,"Songti 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