:root{--navy:#071d38;--blue:#0b3765;--green:#168c2b;--ink:#102847;--muted:#52677c;--line:#ccdae5;--canvas:#f3f8fc;--white:#fff;color-scheme:light;font-family:Inter,Aptos,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--canvas)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:linear-gradient(180deg,#fff 0,var(--canvas) 28rem,#fff 100%);line-height:1.5}button,input{font:inherit}a{color:var(--blue)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #61bd69;outline-offset:3px}.page-width{width:min(1140px,calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;z-index:5;top:8px;left:8px;transform:translateY(-150%);padding:10px 14px;background:#fff;border-radius:7px}.skip-link:focus{transform:none}
.brand-bar{background:#fff;border-bottom:1px solid #e2ebf1}.brand-bar .page-width{min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:.65rem;color:var(--blue);text-decoration:none}.brand-mark{width:26px;height:31px;display:flex;align-items:flex-end;gap:3px}.brand-mark i{display:block;width:6px;border-radius:2px 2px 0 0;background:var(--blue)}.brand-mark i:nth-child(1){height:17px}.brand-mark i:nth-child(2){height:25px;background:var(--green)}.brand-mark i:nth-child(3){height:31px}.brand-name{font-size:1.23rem;letter-spacing:-.025em;white-space:nowrap}.brand-name strong{font-weight:850}.brand-name em{color:var(--green);font-style:normal;font-weight:800}.library-link{color:var(--blue);font-size:.9rem;font-weight:750;text-decoration:none;white-space:nowrap}.library-link:hover,.text-link:hover{text-decoration:underline}
.hero{background:var(--blue);color:#fff}.hero .page-width{padding:34px 0 38px}.eyebrow{display:block;color:#a6e98e;font-size:.76rem;font-weight:850;letter-spacing:.12em}.hero h1{font-size:clamp(2.1rem,4.5vw,3.2rem);line-height:1.08;letter-spacing:-.035em;margin:9px 0 10px}.hero p{max-width:700px;color:#e0ebf5;font-size:1.07rem;margin:0}
main.page-width{padding:25px 0 55px}.calculator-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:20px;align-items:start}.card{min-width:0;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 24px rgba(22,62,96,.07)}.inputs{padding:25px}.card h2{color:var(--navy);font-size:1.45rem;letter-spacing:-.02em;margin:0}.intro-copy{color:var(--muted);margin:7px 0 22px}.inputs fieldset{border:0;padding:0;margin:0 0 24px}.inputs legend{width:100%;border-bottom:1px solid var(--line);padding:0 0 9px;margin-bottom:14px;color:var(--blue);font-weight:800;font-size:1.08rem}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.fields label{font-size:.88rem;font-weight:750}.fields label span{color:var(--muted);font-weight:500}.fields input{display:block;width:100%;height:47px;margin-top:6px;padding:8px 11px;border:1px solid #9fb6c8;border-radius:8px;background:#fff;color:var(--ink);font-size:1rem}.fields input:focus{border-color:var(--green)}.help{font-size:.85rem;color:var(--muted);margin:12px 0 0}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 18px;border:0;border-radius:8px;font-weight:800;text-decoration:none}.button.primary{background:var(--green);color:#fff;cursor:pointer}.button.primary:hover{background:#0d6f20}.button.pending{background:#e8eef2;color:#536b7e;cursor:not-allowed;font-size:.9rem}.error{margin:14px 0 0;color:#a22525;font-weight:700}
.results{overflow:hidden;position:sticky;top:18px}.results-head{background:var(--navy);color:#fff;padding:19px 23px}.results-head h2{color:#fff;margin:4px 0 0}.empty-state{padding:28px 23px;color:var(--muted)}.headline{padding:23px;border-bottom:1px solid var(--line);background:#f3faf2}.headline span{display:block;color:var(--muted);font-size:.84rem;font-weight:750}.headline strong{display:block;margin:3px 0 6px;color:var(--blue);font-size:clamp(1.65rem,3vw,2.3rem);line-height:1.15}.headline p{margin:0;color:var(--muted);font-size:.84rem}.comparison{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.comparison>div{padding:13px 16px;border-bottom:1px solid var(--line)}.comparison>div:nth-child(2n){border-left:1px solid var(--line)}.comparison-label{background:#f2f6f9;color:var(--blue);font-size:.88rem;font-weight:850}.comparison span{display:block;color:var(--muted);font-size:.78rem}.comparison strong{display:block;color:var(--ink);font-size:1rem;margin-top:3px;overflow-wrap:anywhere}.result-note{color:var(--muted);font-size:.83rem;margin:15px 21px;line-height:1.55}
.after-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:20px}.after-grid .card{padding:23px}.after-grid p{color:var(--muted);margin:9px 0 16px}.text-link{font-weight:800;text-underline-offset:3px}.deeper-card{background:#edf5fb}.method-note{color:var(--muted);font-size:.84rem;max-width:900px;margin:22px 0 0}.guide-layout{max-width:840px}.guide-section{padding:25px;margin-bottom:18px}.guide-section p{color:#344a60;margin:10px 0}.guide-section ul{padding-left:22px;color:#344a60}.guide-section li+li{margin-top:7px}.guide-section .button{margin-top:6px}.sources{color:var(--muted);font-size:.85rem}footer{padding:25px 20px;background:var(--navy);color:#dce7ee;text-align:center;font-size:.85rem}
[hidden]{display:none!important}
@media(max-width:850px){.calculator-grid{grid-template-columns:1fr}.results{position:static}.after-grid{grid-template-columns:1fr}}
@media(max-width:550px){.page-width{width:calc(100% - 28px)}.brand-bar .page-width{min-height:58px}.brand-name{font-size:1.02rem}.library-link{font-size:.78rem}.hero .page-width{padding:28px 0}.hero h1{font-size:2.1rem}.inputs{padding:18px}.fields{grid-template-columns:1fr;gap:14px}.after-grid .card,.guide-section{padding:19px}.comparison>div{padding:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}