:root{--petroleum:#0E3A47;--teal:#2D6A73;--orange:#FF8A00;--peach:#FFC28A;--ice:#F2F4F6;--ink:#10252c;--line:#cdd8db;--radius:20px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--ink);font:400 16px/1.65 Manrope,Inter,system-ui,sans-serif}.esrd-shell{max-width:1180px;margin:auto;padding:0 24px}.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;z-index:4;background:#fff;padding:8px}.top{background:var(--petroleum);color:#fff;padding:14px 0}.top a{color:#fff}.crumb{font-size:.9rem;opacity:.9}.hero{background:linear-gradient(135deg,var(--petroleum),#174e59);color:#fff;padding:72px 0 56px}.eyebrow,.tag{font-weight:800;letter-spacing:.12em;font-size:.77rem;text-transform:uppercase;color:var(--orange)}h1{font-size:clamp(2.2rem,5vw,4.3rem);line-height:1.08;max-width:960px;margin:18px 0}h2{font-size:clamp(1.7rem,3vw,2.65rem);line-height:1.15;margin:0 0 18px}h3{line-height:1.25}.lede{font-size:1.22rem;max-width:70ch}.impact{font-size:1.3rem;font-weight:700;color:var(--peach);max-width:62ch}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.button{display:inline-flex;min-height:46px;align-items:center;justify-content:center;border:2px solid var(--orange);border-radius:12px;padding:10px 16px;font-weight:800;text-decoration:none;background:var(--orange);color:#172c33;cursor:pointer}.button.ghost{background:transparent;color:inherit}.button:disabled{cursor:not-allowed;opacity:.58}.toc{position:sticky;top:0;z-index:2;background:#fff;border-bottom:1px solid var(--line);padding:10px 0;overflow:auto;white-space:nowrap}.toc a{color:var(--petroleum);margin-right:18px;font-size:.9rem;font-weight:700;text-decoration:none}.section{padding:72px 0;border-bottom:1px solid var(--line)}.section.tint{background:var(--ice)}.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}.copy{grid-column:2/span 8;max-width:76ch}.wide{grid-column:1/-1}.card,.tool,details{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 8px 24px rgba(14,58,71,.06)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.status{border-left:5px solid var(--teal);padding:12px 16px;background:#e8f0f1}.status.warning{border-color:var(--orange);background:#fff5e8}.tool label{display:block;font-weight:700;margin:12px 0 4px}.tool select,.tool input{width:100%;min-height:44px;border:1px solid #82999f;border-radius:8px;padding:8px;background:#fff;color:var(--ink)}.tool output{display:block;margin-top:16px}.metric{font:800 1.8rem/1.1 "IBM Plex Mono",ui-monospace,monospace;color:var(--petroleum)}.sim-grid,.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}.matrix div{padding:12px;border:1px solid var(--line);border-radius:12px}.matrix strong{display:block}.pill{display:inline-block;border:1px solid currentColor;border-radius:99px;padding:3px 8px;font-size:.78rem;font-weight:700}.fallback{font-size:.95rem}.diagnostic fieldset{border:0;padding:0;margin:0 0 20px}.diagnostic legend{font-weight:800}.answers{display:flex;gap:8px;flex-wrap:wrap}.answers label{border:1px solid var(--line);border-radius:10px;padding:7px 10px;cursor:pointer}.answers input{width:auto;min-height:auto;padding:0}.result{margin-top:20px}.hidden{display:none!important}.lab-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.lab-steps div{border-left:3px solid var(--teal);background:var(--ice);padding:12px}.lab-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.table{overflow:auto}.table table{width:100%;border-collapse:collapse}.table th,.table td{padding:10px;text-align:left;border-bottom:1px solid var(--line)}.meta{font-size:.9rem;color:#49636b}.placeholder{min-height:160px;border:1px dashed var(--teal);border-radius:var(--radius);display:grid;place-items:center;color:var(--teal);background:linear-gradient(135deg,#f5fbfc,#fff)}footer{padding:36px 0;background:var(--petroleum);color:#fff}footer a{color:#fff}#inline-message{max-width:1180px;margin:16px auto 0;padding:0 24px}a{color:#075f75}:focus-visible{outline:3px solid var(--orange);outline-offset:4px}@media(max-width:760px){.esrd-shell{padding:0 16px}.hero{padding:48px 0}.copy{grid-column:1/-1}.cards,.sim-grid,.lab-steps{grid-template-columns:1fr}.section{padding:48px 0}.actions .button{width:100%}#inline-message{padding:0 16px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
.eyebrow,.tag{color:var(--petroleum)}.hero .eyebrow{color:var(--peach)}:focus-visible{outline-color:var(--petroleum);box-shadow:0 0 0 6px #fff}