.mtd{--mtd-ink:#111;--mtd-muted:#5d646b;--mtd-line:#d9dde1;--mtd-soft:#f5f6f7;--mtd-card:#fff;--mtd-accent:#ba2026;max-width:1120px;margin:0 auto;padding:clamp(18px,3vw,36px);color:var(--mtd-ink);font-family:Arial,Helvetica,sans-serif;line-height:1.55;overflow-wrap:anywhere}.mtd *{box-sizing:border-box}.mtd h1,.mtd h2,.mtd h3,.mtd p{margin-top:0}.mtd h1{font-size:clamp(38px,7vw,78px);line-height:.96;letter-spacing:-.045em;max-width:950px;margin-bottom:22px}.mtd h2{font-size:clamp(27px,4vw,46px);line-height:1.03;letter-spacing:-.035em;margin-bottom:18px}.mtd h3{font-size:19px;line-height:1.2}.mtd-eyebrow{font-size:12px;font-weight:800;letter-spacing:.15em;text-transform:uppercase;color:var(--mtd-muted)}.mtd-deckline{font-weight:700;margin:16px 0 10px}.mtd-lede{font-size:clamp(18px,2.2vw,23px);line-height:1.48;max-width:850px;color:var(--mtd-muted)}.mtd-meta{font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--mtd-muted);margin-top:24px}.mtd-hero{padding:8px 0 34px}.mtd-hero-actions,.mtd-button-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}.mtd-pill,.mtd-button-row button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border:1px solid var(--mtd-line);border-radius:999px;padding:10px 14px;background:#fff;color:var(--mtd-ink)!important;text-decoration:none!important;font-size:13px;font-weight:800;cursor:pointer}.mtd-pill-primary{background:var(--mtd-ink)!important;color:#fff!important;border-color:var(--mtd-ink)!important}.mtd-nav{display:flex;flex-wrap:wrap;gap:8px;padding:15px 0;border-top:1px solid var(--mtd-line);border-bottom:1px solid var(--mtd-line);position:relative}.mtd-nav a{font-size:13px;font-weight:800;text-decoration:none!important;color:var(--mtd-ink)!important;border:1px solid var(--mtd-line);border-radius:999px;padding:8px 11px}.mtd-section{padding:48px 0;border-bottom:1px solid var(--mtd-line);scroll-margin-top:25px}.mtd-copy{max-width:800px;font-size:17px;color:var(--mtd-muted)}.mtd-callout{margin-top:22px;border-left:4px solid var(--mtd-accent);background:var(--mtd-soft);padding:16px 18px;border-radius:0 10px 10px 0}.mtd-equation{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin:26px 0;font-weight:800}.mtd-equation span,.mtd-equation strong{border:1px solid var(--mtd-line);border-radius:10px;padding:10px 12px;background:#fff}.mtd-equation strong{background:var(--mtd-ink);color:#fff}.mtd-equation b{color:var(--mtd-muted)}.mtd-flow,.mtd-pathway{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-top:24px}.mtd-flow div,.mtd-pathway div{border-top:3px solid var(--mtd-ink);padding:12px 7px 4px;min-width:0}.mtd-flow span,.mtd-pathway b{display:block;font-size:11px;color:var(--mtd-muted);letter-spacing:.08em;margin-bottom:5px}.mtd-flow strong,.mtd-pathway span{display:block;font-size:14px;line-height:1.3}.mtd-grid{display:grid;gap:12px;margin-top:24px}.mtd-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.mtd-small-card,.mtd-test-grid article,.mtd-obstacles article{border:1px solid var(--mtd-line);border-radius:12px;padding:18px;background:var(--mtd-card);min-width:0}.mtd-small-card p,.mtd-test-grid p,.mtd-obstacles p{margin-bottom:0;color:var(--mtd-muted);font-size:14px}.mtd-controls{display:grid;grid-template-columns:minmax(0,1fr) minmax(190px,260px);gap:12px;margin-top:24px}.mtd-controls label,.mtd-action-panel>label{font-size:12px;font-weight:800}.mtd-controls label span{display:block;margin-bottom:6px}.mtd-controls input,.mtd-controls select,.mtd-action-panel select{width:100%;min-height:46px;border:1px solid var(--mtd-line);border-radius:9px;background:#fff;color:var(--mtd-ink);padding:10px 12px;font-size:16px}.mtd-empty{color:var(--mtd-muted);margin-top:20px}.mtd-model-list{margin-top:26px}.mtd-model{border-top:1px solid var(--mtd-line)}.mtd-model:last-child{border-bottom:1px solid var(--mtd-line)}.mtd-model summary{list-style:none;display:grid;grid-template-columns:42px minmax(0,1fr) auto;gap:14px;padding:19px 0;cursor:pointer;align-items:start}.mtd-model summary::-webkit-details-marker{display:none}.mtd-number{font-size:12px;font-weight:900;color:var(--mtd-muted);padding-top:4px}.mtd-summary-text{min-width:0}.mtd-summary-text small{display:block;font-size:11px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;color:var(--mtd-muted);margin-bottom:5px}.mtd-summary-text strong{display:block;font-size:20px;line-height:1.15;margin-bottom:5px}.mtd-summary-text em{display:block;font-size:14px;font-style:normal;color:var(--mtd-muted)}.mtd-toggle{font-size:12px;font-weight:900;border:1px solid var(--mtd-line);border-radius:999px;padding:7px 10px;white-space:nowrap}.mtd-model[open] .mtd-toggle{background:var(--mtd-ink);color:#fff}.mtd-model-body{padding:2px 0 26px 56px;max-width:100%}.mtd-model-body>p{max-width:820px;color:var(--mtd-muted)}.mtd-five{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin-bottom:20px}.mtd-five div{background:var(--mtd-soft);border-radius:9px;padding:12px;min-width:0}.mtd-five b{display:block;font-size:10px;letter-spacing:.07em;text-transform:uppercase;color:var(--mtd-muted);margin-bottom:6px}.mtd-five span{display:block;font-size:13px;line-height:1.35;font-weight:700}.mtd-test-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:25px}.mtd-test-grid article>span{font-size:12px;font-weight:900;color:var(--mtd-muted)}.mtd-test-grid h3{margin:7px 0 7px}.mtd-time-chain{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:8px;margin:24px 0}.mtd-time-chain div{padding:14px;background:var(--mtd-soft);border-radius:10px}.mtd-time-chain strong,.mtd-time-chain span{display:block}.mtd-time-chain strong{margin-bottom:5px}.mtd-time-chain span{font-size:13px;color:var(--mtd-muted)}.mtd-obstacles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:24px}.mtd-obstacles article small{font-size:10px;font-weight:900;text-transform:uppercase;letter-spacing:.1em;color:var(--mtd-muted)}.mtd-obstacles article strong{display:block;margin-top:14px;font-size:13px}.mtd-action-panel{background:var(--mtd-soft);border:1px solid var(--mtd-line);border-radius:14px;padding:20px;margin-top:24px}.mtd-action-panel select{max-width:440px;display:block;margin-top:7px}.mtd-result{border-top:1px solid var(--mtd-line);margin-top:20px;padding-top:19px}.mtd-result h3{font-size:24px;margin-bottom:10px}.mtd-result ol{padding-left:22px}.mtd-result li{margin:7px 0}.mtd-shift-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px}.mtd-shift-grid>div{border-top:4px solid var(--mtd-ink);padding-top:15px}.mtd-shift-grid small{font-size:11px;font-weight:900;letter-spacing:.1em;text-transform:uppercase;color:var(--mtd-muted)}.mtd-shift-grid p{font-size:19px;font-weight:800;line-height:1.8}.mtd-pathway{grid-template-columns:repeat(6,minmax(0,1fr))}.mtd-sources .mtd-note{font-size:13px;color:var(--mtd-muted);margin-top:16px}.mtd-final{padding:48px 0 20px}.mtd-final>p{max-width:820px;font-size:18px;color:var(--mtd-muted)}.mtd-final .mtd-bigline{font-size:clamp(24px,4vw,40px);font-weight:900;line-height:1.08;color:var(--mtd-ink);margin-top:28px}.mtd-final .mtd-tagline{font-weight:900;color:var(--mtd-ink);margin-top:24px}.mtd a:focus-visible,.mtd button:focus-visible,.mtd input:focus-visible,.mtd select:focus-visible,.mtd summary:focus-visible{outline:3px solid #2463eb;outline-offset:3px}@media(max-width:820px){.mtd-grid-3,.mtd-test-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mtd-five{grid-template-columns:repeat(2,minmax(0,1fr))}.mtd-five div:last-child{grid-column:1/-1}.mtd-flow,.mtd-time-chain{grid-template-columns:repeat(2,minmax(0,1fr))}.mtd-flow div:last-child,.mtd-time-chain div:last-child{grid-column:1/-1}.mtd-pathway{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:600px){.mtd{padding:18px 16px}.mtd h1{font-size:42px}.mtd-section{padding:38px 0}.mtd-controls{grid-template-columns:1fr}.mtd-grid-3,.mtd-test-grid,.mtd-obstacles,.mtd-shift-grid{grid-template-columns:1fr}.mtd-model summary{grid-template-columns:30px minmax(0,1fr);gap:10px}.mtd-toggle{grid-column:2;justify-self:start}.mtd-model-body{padding-left:0}.mtd-five{grid-template-columns:1fr}.mtd-five div:last-child{grid-column:auto}.mtd-pathway{grid-template-columns:repeat(2,minmax(0,1fr))}.mtd-equation{align-items:stretch}.mtd-equation span,.mtd-equation strong{flex:1 1 42%;text-align:center}.mtd-equation b{align-self:center}.mtd-nav{gap:6px}.mtd-nav a{font-size:12px}.mtd-summary-text strong{font-size:18px}}