:root{--paper:#f3f1e9;--ink:#183730;--muted:#4e625a;--green:#245b47;--accent:#d5ea78;--line:#b5bfb0;--white:#fffef8;--space:24px;--radius:16px;--small:14px;--body:16px;--large:clamp(44px,7vw,84px)}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:var(--body)/1.7 system-ui,sans-serif}main{max-width:1200px;margin:auto;padding:0 40px}header{display:flex;justify-content:space-between;gap:var(--space);align-items:center;border-bottom:1px solid var(--line);padding:var(--space) 0;font-size:var(--small)}a{color:inherit;text-underline-offset:4px}.brand{font-weight:900;letter-spacing:.15em;text-decoration:none}.hero{padding:64px 0 48px}.eyebrow{font-size:12px;letter-spacing:.2em;font-weight:800}h1{font-size:var(--large);line-height:1.2;letter-spacing:-.05em;margin:20px 0 28px}h1 em{font-style:normal;color:var(--green)}.intro{font-size:19px}.badge{display:inline-block;background:var(--accent);border-radius:40px;padding:8px 16px;font-size:var(--small);font-weight:700}.explain{display:grid;grid-template-columns:1fr auto 1fr;gap:40px;background:var(--ink);color:var(--white);padding:36px 40px;border-radius:var(--radius)}.explain h2{font-size:28px;margin:8px 0}.tag{font-size:12px;letter-spacing:.12em;color:var(--accent)}.blocks{font-size:28px;letter-spacing:.08em;color:var(--accent)}.explain p{font-size:var(--small)}.arrow{align-self:center;font-size:40px}.lab{padding:56px 0}.section-title{display:flex;align-items:center;justify-content:space-between;gap:var(--space);border-bottom:1px solid var(--line);margin-bottom:var(--space)}h2{font-size:21px}.section-title span,.fine{font-size:12px;color:var(--muted);overflow-wrap:anywhere}.controls{display:flex;flex-wrap:wrap;gap:16px}label{display:flex;flex-direction:column;font-size:var(--small);font-weight:700;gap:8px}input,select,button{font:inherit;min-height:44px;border:1px solid var(--line);border-radius:8px;padding:8px 14px;background:var(--white);color:var(--ink)}input{max-width:280px}button{cursor:pointer;border:0;background:var(--green);color:var(--white);font-weight:700}button:disabled{opacity:.5;cursor:default}.secondary{background:transparent;color:var(--ink);border:1px solid var(--line)}:focus-visible{outline:3px solid var(--green);outline-offset:4px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:var(--space)}#status{font-weight:700;min-height:28px}.results{display:grid;grid-template-columns:1fr 1fr;gap:var(--space);margin-top:32px}article{padding:var(--space);background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}h3{font-size:var(--body);margin:0 0 12px}.metric{font-size:48px;font-weight:800;line-height:1.2;font-variant-numeric:tabular-nums}.metric small{font-size:var(--body);font-weight:500}article p{font-size:12px;color:var(--muted)}canvas{display:block;width:100%;height:auto;border-radius:8px}.diff{display:grid;grid-template-columns:180px 1fr;gap:var(--space);margin-top:var(--space);padding:var(--space);border:1px solid var(--line);border-radius:var(--radius)}footer{padding:32px 0 56px;border-top:1px solid var(--line);max-width:850px}footer p{font-size:var(--small);color:var(--muted)}@media(max-width:700px){main{padding:0 20px}header span{display:none}.hero{padding:40px 0}.explain{grid-template-columns:1fr;gap:12px;padding:var(--space)}.arrow{transform:rotate(90deg);justify-self:center}.section-title{display:block}.results{grid-template-columns:1fr}.diff{grid-template-columns:1fr}.diff canvas{max-width:180px}.metric{font-size:40px}input{max-width:100%}.intro{font-size:var(--body)}}