:root{color-scheme:light;--ink:#172c35;--muted:#566970;--paper:#f5f7f5;--line:#dce4df;--green:#08775d;--green-pale:#e4f3eb;--amber:#986007;--red:#b54b43;--gray:#6a7685;--train:#08775d;--loss:#b9d9cc;--shadow:0 6px 22px #1c3d3210}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--green);text-underline-offset:3px}button,input,select{font:inherit}button,a,input,select,summary{touch-action:manipulation}:focus-visible{outline:3px solid #1b70c5;outline-offset:4px}h1,h2,h3,p{margin:0}h2{font-size:20px;line-height:1.3;letter-spacing:-.35px}button{cursor:pointer}.site-header{max-width:1320px;margin:auto;padding:24px 32px;display:flex;justify-content:space-between;align-items:center}.brand{color:var(--ink);text-decoration:none;font-size:20px;font-weight:750;display:flex;align-items:center;gap:10px}.brand-mark{background:var(--green);color:white;width:32px;height:32px;border-radius:10px;text-align:center;font-size:26px;line-height:30px}.site-header nav{display:flex;gap:24px;font-size:14px}.site-header nav a{text-decoration:none;color:var(--muted)}main{max-width:1320px;margin:auto;padding:0 32px}.hero{padding:34px 0 32px}.eyebrow{color:var(--green);font-size:11px;font-weight:750;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}h1{font-size:clamp(30px,4.2vw,50px);letter-spacing:-1.8px;line-height:1.13;font-weight:760}h1 span{color:var(--green)}.intro{color:var(--muted);max-width:700px;margin-top:19px;font-size:17px}.provenance{margin-top:17px;color:var(--muted);font-size:12px}.provenance>span:first-child{color:var(--green);font-size:9px;margin-right:5px}.workspace{display:grid;grid-template-columns:270px minmax(0,1fr);gap:24px;align-items:start}.controls,.panel,.card{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.controls{padding:24px;position:sticky;top:20px}.controls h2{font-size:18px;margin-bottom:24px}label{display:block;font-size:13px;font-weight:650;margin-bottom:8px}select{width:100%;padding:10px;border:1px solid #bccdc3;border-radius:8px;background:white;color:var(--ink)}.control-description{font-size:12px;color:var(--muted);margin-top:10px;min-height:55px}.slider-heading{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-top:25px}.slider-heading label{margin:0}.slider-heading output{font-size:13px;font-variant-numeric:tabular-nums;color:var(--green);font-weight:750;white-space:nowrap}input[type=range]{accent-color:var(--green);width:100%;margin:15px 0 7px;cursor:pointer}.range-labels{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}.preset-label{font-size:12px;font-weight:650;margin-top:26px;margin-bottom:9px}.presets{display:flex;flex-wrap:wrap;gap:7px}.presets button{border:1px solid var(--line);border-radius:6px;background:white;color:var(--muted);padding:6px 9px;font-size:11px}.presets button:hover,.presets button[aria-pressed=true]{background:var(--green-pale);border-color:#9dc8b5;color:var(--green)}.objective{margin-top:25px;padding-top:20px;border-top:1px solid var(--line)}.objective strong{font-size:12px}.objective p{font-size:13px;margin:7px 0 10px;color:var(--green)}.objective small{display:block;font-size:11px;color:var(--muted)}.results{display:grid;gap:20px;min-width:0}.status{font-size:13px;color:var(--muted);min-height:20px}.status.error{color:#a33428;background:#fff0eb;padding:14px;border-radius:8px}.cards{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.card{padding:17px 15px;box-shadow:none}.card.optimized{background:var(--green-pale);border-color:#a5cdb8}.card-label{font-size:12px;font-weight:700;white-space:nowrap}.card-value{font-size:28px;letter-spacing:-1px;line-height:1.25;margin:9px 0 8px;font-variant-numeric:tabular-nums;font-weight:750}.card-unit{font-size:10px;font-weight:400;letter-spacing:0;margin-left:4px}.card-note{font-size:11px;color:var(--muted);line-height:1.65}.panel{padding:23px}.panel-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:12px}.panel-heading .eyebrow{font-size:10px;margin-bottom:7px}.chart-key{font-size:11px;color:var(--muted);white-space:nowrap}.panel-description{font-size:13px;color:var(--muted);margin-bottom:12px}.chart-note{font-size:11px;color:var(--muted);line-height:1.5;margin-top:9px}svg{display:block;width:100%;height:auto;font-family:inherit}svg text{fill:var(--muted);font-size:11px}svg .row-label{font-size:12px;font-weight:650}svg .axis{stroke:var(--line);stroke-width:1}svg .step-value{font-size:9px}svg .total-label{font-size:12px;font-weight:700;fill:var(--ink)}.chart-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px}.chart-pair .panel h2{font-size:17px}.chart-scroll,.table-scroll{overflow-x:auto;overscroll-behavior-x:contain}.chart-scroll svg{min-width:580px}.legend{display:flex;gap:18px;font-size:11px;color:var(--muted)}.legend span{display:flex;gap:6px;align-items:center}.legend i{display:block;width:10px;height:10px;border-radius:2px}.train-swatch{background:var(--train)}.loss-swatch{background:var(--loss)}details summary{cursor:pointer;font-size:14px;font-weight:650}details[open] summary{margin-bottom:20px}.details p{font-size:12px;line-height:1.7;color:var(--muted);margin-top:15px}table{border-collapse:collapse;width:100%;font-size:11px;font-variant-numeric:tabular-nums}caption{caption-side:bottom;text-align:left;color:var(--muted);margin-top:10px}th,td{padding:10px 7px;text-align:right;border-bottom:1px solid var(--line);white-space:nowrap}th{font-weight:650}th:first-child,td:first-child{text-align:left}.next-step{display:flex;gap:24px;justify-content:space-between;align-items:center;padding:9px 0}.next-step h2{font-size:18px}.next-step p{font-size:12px;color:var(--muted);margin-top:7px;max-width:440px}.primary-link{white-space:nowrap;padding:12px 17px;background:var(--green);color:white;text-decoration:none;border-radius:9px;font-size:13px;font-weight:600}footer{margin-top:38px;padding:23px 0 30px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);display:flex;gap:16px;justify-content:space-between}code{font-size:.94em;overflow-wrap:anywhere}.skip-link{position:fixed;left:16px;top:-100px;padding:12px;background:white;z-index:10}.skip-link:focus{top:12px}.noscript{margin:32px}.results:focus{outline:none}
@media(max-width:1100px){.workspace{grid-template-columns:240px minmax(0,1fr);gap:18px}.controls{padding:19px}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}.chart-pair{grid-template-columns:1fr}.card{padding:15px}.card-value{font-size:27px}.chart-pair svg{max-height:250px}.panel-heading{align-items:flex-start}}
@media(max-width:760px){main{padding:0 18px}.site-header{padding:19px 18px}.site-header nav{gap:15px;font-size:12px}.hero{padding:23px 0 27px}h1{letter-spacing:-1px}.intro{font-size:15px}.workspace{grid-template-columns:1fr}.controls{position:static;padding:22px}.control-description{min-height:0}.controls h2{margin-bottom:18px}.slider-heading{margin-top:20px}.objective{margin-top:20px;padding-top:15px}.objective small{font-size:12px}.range-labels,.presets button{font-size:12px}.presets button{padding:8px 10px}.panel{padding:20px 16px}.panel-heading{display:block}.chart-key{display:block;margin-top:10px}.card{padding:16px}.card-note{font-size:12px}.chart-pair{gap:18px}.next-step{display:block;padding:12px 0}.primary-link{display:inline-block;margin-top:16px}footer{display:block;margin-top:20px}footer a{display:inline-block;margin-top:12px}.provenance{font-size:11px}.chart-note{font-size:12px}.details p{font-size:13px}}