:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#172033;background:#eef3f8;--ink:#172033;--muted:#5f6b7c;--card:#fffffd;--line:#dde5ef;--accent:#2d5f95;--accent-dark:#1c4169;--soft:#e3eef9}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top left,#fffdfa 0,#eef4fb 42%,#dde8f3 100%);color:var(--ink)}a{color:var(--accent-dark)}.page-shell{max-width:1120px;margin:0 auto;padding:24px 18px 64px}.site-nav{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:16px;margin:-16px 0 24px;padding:12px 16px;background:rgba(255,255,255,.88);border:1px solid #e1e5ee;border-radius:24px;box-shadow:0 10px 24px rgba(22,31,54,.06);backdrop-filter:blur(12px)}.site-brand{display:inline-flex;align-items:center;gap:10px;color:#172033;text-decoration:none;font-weight:800}.brand-mark{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:12px;background:#172033;color:#fff;font-weight:900}.site-nav a:not(.site-brand){color:#4b5565;text-decoration:none;font-weight:700;font-size:.95rem}.site-nav a:hover{text-decoration:underline}.crumb{font-size:.92rem;color:var(--muted);margin:8px 0 28px}.hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(270px,.65fr);gap:22px;align-items:stretch}.eyebrow{display:inline-flex;margin:0 0 12px;padding:7px 11px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--accent-dark);font-weight:900;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em}.hero h1{font-size:clamp(2.15rem,7vw,4.9rem);line-height:.94;letter-spacing:-.065em;margin:0 0 18px}.lede{font-size:clamp(1rem,2.5vw,1.22rem);line-height:1.65;color:#405269;max-width:740px}.result-card,.calculator,.copy-block{background:rgba(255,255,253,.94);border:1px solid var(--line);box-shadow:0 18px 45px rgba(34,65,100,.09);border-radius:28px}.result-card{padding:24px;display:flex;flex-direction:column;justify-content:center;min-height:220px;background:linear-gradient(160deg,#fffffd,#dcecff)}.result-card .label{font-weight:900;color:var(--accent-dark);text-transform:uppercase;letter-spacing:.08em;font-size:.8rem}.result-card strong{font-size:clamp(2.45rem,8vw,4.9rem);line-height:.92;margin:12px 0;color:var(--accent-dark);letter-spacing:-.05em}.result-card span:last-child{line-height:1.5;color:#3f4f63}.calculator{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:22px;margin-top:26px;padding:20px}form{display:grid;gap:16px}fieldset{border:1px solid var(--line);border-radius:22px;padding:18px;background:#fffffd}legend{font-weight:900;padding:0 8px;color:#223247}.grid{display:grid;gap:14px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}label{display:grid;gap:8px;font-size:.9rem;font-weight:850;color:#27384f}input,select{width:100%;border:1px solid #cbd7e6;border-radius:14px;padding:12px 13px;background:#fff;color:var(--ink);font:inherit;font-weight:750}input:focus,select:focus{outline:3px solid rgba(45,95,149,.18);border-color:var(--accent)}.hint,.hint-inline{color:var(--muted);font-weight:500;line-height:1.55}.hint{margin:12px 0 0}.hint-inline{font-size:.82rem}.preset-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.preset-row button{border:1px solid #cbd7e6;background:var(--soft);color:var(--accent-dark);border-radius:999px;padding:9px 12px;font-weight:900;cursor:pointer}.preset-row button:hover{background:#d2e4f7}.breakdown{border-left:1px solid var(--line);padding-left:20px}.breakdown h2{margin:4px 0 16px;font-size:1.35rem}dl{display:grid;gap:12px;margin:0}dl div{display:grid;gap:4px;padding:14px;border:1px solid var(--line);border-radius:18px;background:#f8fbff}dt{color:var(--muted);font-weight:850;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em}dd{margin:0;font-size:1.35rem;font-weight:950;color:var(--accent-dark)}.copy-block{margin-top:22px;padding:24px}.copy-block h2{margin:0 0 12px;font-size:clamp(1.35rem,3vw,2rem);letter-spacing:-.02em}.copy-block p,.copy-block li{color:#405269;line-height:1.7}.examples ul{margin-bottom:0}.faq details{border-top:1px solid var(--line);padding:15px 0}.faq details:first-of-type{border-top:0}.faq summary{cursor:pointer;font-weight:950;color:#223247}.faq p{margin-bottom:0}@media (max-width:820px){.hero,.calculator{grid-template-columns:1fr}.breakdown{border-left:0;border-top:1px solid var(--line);padding:20px 0 0}.grid.two,.grid.three{grid-template-columns:1fr}.result-card{min-height:auto}.site-nav{margin-top:-8px;padding:10px 12px;border-radius:20px}.site-nav a:not(.site-brand){font-size:.9rem}.brand-mark{width:30px;height:30px}.site-brand span:last-child{max-width:180px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}}