:root{--bg:#f7f9fc;--surface:#fff;--ink:#172033;--muted:#657089;--line:#e4e9f2;--accent:#4667e8;--accent2:#18a999;--soft:#edf1ff}*{box-sizing:border-box}html[data-theme=dark]{--bg:#111827;--surface:#1a2435;--ink:#f2f5fb;--muted:#aab6ca;--line:#2b3950;--soft:#26345a}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}p{color:var(--muted)}.wrap{width:min(1120px,calc(100% - 40px));margin:auto}.site-header{background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-weight:800;font-size:1.15rem;display:flex;align-items:center;gap:9px}.brand span{background:var(--accent);color:#fff;border-radius:10px;padding:3px 6px;font-size:.8rem}nav{display:flex;gap:28px;color:var(--muted);font-weight:600}nav a:hover{color:var(--accent)}.nav-actions{display:flex;gap:8px}.icon-btn{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:10px;padding:8px 11px;cursor:pointer}.hero{background:linear-gradient(110deg,var(--soft),var(--bg));padding:92px 0}.hero-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}.hero h1{font-size:clamp(2.6rem,6vw,5rem);line-height:1.03;letter-spacing:-.06em;max-width:700px;margin:12px 0}.hero h1 em{color:var(--accent);font-style:normal}.lead{font-size:1.15rem;max-width:650px}.eyebrow{font-size:.75rem;letter-spacing:.14em;color:var(--accent);font-weight:800}.search{display:flex;max-width:540px;margin-top:28px}.search input{flex:1;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:12px 0 0 12px;padding:14px 16px;font:inherit}.search button,.primary{border:0;background:var(--accent);color:#fff;padding:13px 20px;border-radius:0 12px 12px 0;font-weight:700;cursor:pointer}.primary.inline{display:inline-block;border-radius:10px}.hero-art{width:280px;height:280px;display:grid;place-items:center;position:relative}.orb{width:190px;height:190px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:white;font-size:3rem;font-weight:800;box-shadow:20px 22px 0 var(--accent2)}.float-card{position:absolute;top:10px;right:0;background:var(--surface);padding:15px 18px;border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 30px #17203318;z-index:1}.float-card small,.float-card strong{display:block}.section{padding:76px 0}.section-heading{display:flex;justify-content:space-between;align-items:end;margin-bottom:24px}.section-heading h2,.two-col h2{font-size:2.3rem;line-height:1.1;margin:5px 0}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.tool-card,.info-card,.calculator{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:23px;position:relative}.tool-card{min-height:185px;transition:transform .2s,box-shadow .2s}.tool-card:hover{transform:translateY(-3px);box-shadow:0 12px 25px #17203312}.tool-card h3{margin:14px 0 5px}.tool-card p{margin:0;padding-right:20px}.tool-icon{color:var(--accent);font-size:1.5rem}.arrow{color:var(--accent);position:absolute;right:22px;bottom:20px}.pill{font-size:.72rem;color:var(--accent);font-weight:700}.band{background:var(--ink);color:var(--bg);padding:75px 0}.band p{color:#c1ccdc}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:80px}.feature-list p{display:flex;gap:20px;border-bottom:1px solid #ffffff25;padding:16px 0}.feature-list b{color:#70e0ce}.page-head{padding:70px 0 35px}.page-head h1{font-size:clamp(2.2rem,5vw,4rem);line-height:1.05;margin:8px 0}.page-head.compact{padding-bottom:25px}.calc-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:20px;padding-bottom:60px}.calc-fields{display:grid;grid-template-columns:1fr 1fr;gap:16px}.calc-fields label{font-weight:700;font-size:.9rem}.calc-fields input{display:block;width:100%;margin-top:7px;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:9px;padding:12px;font:inherit}.button-row{display:flex;gap:10px;margin-top:24px}.button-row .primary{border-radius:10px}.secondary{border:1px solid var(--line);background:transparent;color:var(--ink);border-radius:10px;padding:12px 20px;font-weight:700;cursor:pointer}.result{margin-top:22px;background:var(--soft);border-radius:12px;padding:20px}.result strong{display:block;font-size:1.7rem;color:var(--accent);margin-top:6px}.result:not(.shown){opacity:.8}.content-section,.prose{padding-bottom:80px;max-width:800px}.content-section h2,.prose h2{margin-top:35px}footer{background:var(--surface);border-top:1px solid var(--line);padding:45px 0 0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:35px}.footer-grid h3{font-size:.9rem}.footer-grid a:not(.brand){display:block;color:var(--muted);margin:7px 0}.copyright{border-top:1px solid var(--line);margin-top:35px;padding:18px 0;color:var(--muted);font-size:.85rem}.skip{position:absolute;left:-9999px}.skip:focus{left:10px;top:10px;background:var(--surface);padding:8px;z-index:9}@media(max-width:760px){nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--surface);padding:20px;flex-direction:column;gap:12px;border-bottom:1px solid var(--line)}nav.open{display:flex}.menu-btn{display:block}.hero{padding:55px 0}.hero-inner{display:block}.hero-art{margin:35px auto 0}.card-grid,.calc-layout,.two-col,.footer-grid{grid-template-columns:1fr}.calc-fields{grid-template-columns:1fr}.section-heading{align-items:start;display:block}}