:root{color-scheme:light dark;--bg:#f5f6f1;--panel:#fff;--fg:#202822;--muted:#59635e;--line:#dbe2d7;--lime:#c8f578;--accent:#344c13}
@media(prefers-color-scheme:dark){:root{--bg:#111315;--panel:#1b1e21;--fg:#f3f5ee;--muted:#adb5ae;--line:#333a36;--accent:#c8f578}}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 system-ui,sans-serif}a{color:inherit;text-underline-offset:4px}button,input{font:inherit}a,button{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:5px}header,main,footer{width:min(1140px,calc(100% - 48px));margin:auto}header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 0}nav{display:flex;gap:24px;align-items:center;flex-wrap:wrap}nav a{text-decoration:none;font-size:.9rem}.brand{font-size:1.7rem;font-weight:800;letter-spacing:-1.3px;text-decoration:none}.brand i{display:inline-grid;place-items:center;background:var(--lime);color:#172010;width:35px;height:35px;border-radius:12px;font-size:1.3rem;font-style:normal;margin-right:8px}.hero{padding:70px 0 40px;max-width:900px}.eyebrow{font-size:.74rem;text-transform:uppercase;letter-spacing:2px;font-weight:700;color:var(--accent)}h1{font-size:clamp(2.6rem,6vw,5.2rem);line-height:1.06;letter-spacing:-.055em;margin:23px 0}h1 em{font-family:Georgia,serif;font-weight:400;color:var(--accent)}.lead{max-width:650px;font-size:1.15rem;color:var(--muted)}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}.button{display:inline-flex;justify-content:center;align-items:center;gap:10px;background:var(--lime);color:#172010;text-decoration:none;padding:12px 23px;border:1px solid transparent;border-radius:13px;font-weight:650;cursor:pointer;transition:transform .2s,box-shadow .2s}.button:hover{transform:translateY(-3px);box-shadow:0 9px 25px #0002}.button.secondary{background:var(--panel);border-color:var(--line);color:var(--fg)}.small{font-size:.86rem;color:var(--muted)}.preview{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:8px;overflow:hidden;margin:20px 0 60px}.preview img{display:block;width:100%;height:auto;border-radius:17px}.preview figcaption{padding:9px 14px;color:var(--muted);font-size:.8rem}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.card{padding:27px;border:1px solid var(--line);border-radius:22px;background:var(--panel)}.card p{color:var(--muted)}.card a{font-weight:600}.card .number{font-family:Georgia,serif;font-size:2rem;color:var(--accent)}h2{font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.2;letter-spacing:-.04em;margin:0 0 23px}h3{line-height:1.3;font-size:1.15rem}section{margin:60px 0}.split{display:grid;grid-template-columns:1fr 1fr;gap:45px;align-items:start}.callout{border:1px solid var(--line);border-radius:24px;background:var(--panel);padding:35px}.callout.lime{background:var(--lime);color:#172010}.callout.lime .small{color:#37482b}details{padding:20px 0;border-bottom:1px solid var(--line)}summary{font-weight:650;cursor:pointer}details p{color:var(--muted);max-width:800px}.article{max-width:780px}.article h1{font-size:clamp(2.5rem,5vw,4rem)}.article section{margin:38px 0}.article p{font-size:1.06rem}.exercise{border-left:4px solid var(--accent);padding:15px 23px;background:var(--panel);border-radius:0 14px 14px 0}.toc{display:flex;flex-wrap:wrap;gap:12px}.toc a{border:1px solid var(--line);border-radius:30px;padding:6px 14px;font-size:.9rem}footer{margin-top:70px;border-top:1px solid var(--line);padding:30px 0 40px;color:var(--muted);font-size:.85rem;display:flex;justify-content:space-between;gap:22px;flex-wrap:wrap}footer div{display:flex;gap:18px;flex-wrap:wrap}input{max-width:100%}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}td,th{padding:14px 10px;border-bottom:1px solid var(--line);text-align:left}address{font-style:normal}.metric{font-size:2.2rem;font-weight:750;letter-spacing:-1px}.field{display:grid;gap:6px;margin:18px 0}.field input{padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg);width:100%}.hero,.card{animation:enter .5s ease both}@keyframes enter{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media(max-width:760px){header,main,footer{width:calc(100% - 32px)}header{align-items:flex-start;gap:15px}nav{gap:13px;justify-content:flex-end}.grid{grid-template-columns:1fr 1fr}.split{grid-template-columns:1fr;gap:20px}.hero{padding:35px 0 20px}.callout{padding:24px}section{margin:40px 0}}@media(max-width:480px){.grid{grid-template-columns:1fr}nav a{font-size:.8rem}.brand{font-size:1.3rem}.brand i{display:none}.card{padding:23px}.actions .button{width:100%}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}