@font-face{font-family:Inter;src:url('frontierspace-fonts/inter-latin.woff2') format('woff2');font-display:swap}
@font-face{font-family:Cormorant;src:url('frontierspace-fonts/cormorant-garamond-latin.woff2') format('woff2');font-display:swap}
:root{--ink:#111216;--muted:#65666f;--line:#dedbd4;--paper:#fffdfa;--wash:#f6f3ed;--gold:#987127;--gold-soft:#fbf4e5;--navy:#293f5f;--green:#42735f;--red:#a75445;--shadow:0 18px 44px rgba(27,24,19,.06)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,Arial,sans-serif;font-size:15px;line-height:1.55}button,input{font:inherit}button{cursor:pointer}.shell{width:min(1180px,calc(100% - 48px));margin:auto}
.site-header{min-height:80px;position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:rgba(255,253,250,.96);backdrop-filter:blur(12px)}.site-nav-shell{width:min(1280px,calc(100% - 52px));min-height:80px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none}.brand-mark{width:40px;height:40px;display:grid;place-items:center;border:1px solid #c9a96a;border-radius:4px;background:#f7f7f7;color:var(--gold);font:700 24px Cormorant,Georgia,serif}.brand-name{font:600 15px Cormorant,Georgia,serif;text-transform:uppercase}.main-site-nav{display:flex;align-items:center;gap:28px;overflow-x:auto;color:#5b5753;font-size:13px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;white-space:nowrap}.main-site-nav a{padding-bottom:4px;color:inherit;text-decoration:none;border-bottom:2px solid transparent}.main-site-nav a:hover,.main-site-nav a:focus-visible{color:var(--ink);border-bottom-color:var(--gold);outline:none}
.crumbs{padding-top:38px;color:#77756f;font-size:11px}.crumbs a{color:inherit;text-decoration:none}.crumbs a:hover{color:var(--gold)}.crumbs span{padding:0 8px;color:#b0aca3}.intro{padding:24px 0 52px;border-bottom:1px solid var(--line);background:linear-gradient(112deg,#f4f0e8,#fffdfa 66%)}.eyebrow{margin:0 0 12px;color:var(--gold);font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase}h1{max-width:920px;margin:0;font:600 clamp(43px,6.1vw,72px)/.98 Cormorant,Georgia,serif;letter-spacing:-.035em}.subtitle{max-width:720px;margin:20px 0 0;color:#55565f;font-size:17px}.example{max-width:760px;margin:25px 0 0;padding:16px 18px;border-left:3px solid var(--gold);background:rgba(255,253,250,.82);font-size:17px;font-weight:700;letter-spacing:-.012em}
.calculator-section{padding:48px 0 78px}.calculator-layout{display:grid;grid-template-columns:minmax(0,390px) minmax(0,1fr);gap:clamp(54px,9vw,122px);align-items:start}.input-panel{position:sticky;top:104px;padding:25px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}.panel-kicker,.result-kicker{margin:0 0 5px;color:var(--gold);font-size:10px;font-weight:700;letter-spacing:.13em;text-transform:uppercase}.input-panel h2,.results h2{margin:0;font-size:27px;line-height:1.12;letter-spacing:-.025em}.panel-copy{margin:8px 0 22px;color:var(--muted);font-size:12px}.field{margin-top:17px}.field:first-child{margin-top:0}.field-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px}.field label{font-size:12px;font-weight:700}.field-help{display:block;margin-top:5px;color:#777881;font-size:10px;line-height:1.45}.input-box{display:flex;align-items:center;margin-top:7px;border:1px solid #d3d0c9;background:#fff}.input-box:focus-within{border-color:var(--gold);box-shadow:0 0 0 3px rgba(152,113,39,.11)}.input-box input{width:100%;min-width:0;padding:11px 12px;border:0;outline:0;color:#555761;background:transparent;font-size:16px}.unit{flex:0 0 auto;padding:0 12px;color:#85868e;font-size:11px;font-weight:700}.choice-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.choice{border:0;border-radius:999px;padding:8px 11px;background:transparent;color:#666770;font-size:10px;font-weight:700}.choice:hover,.choice:focus-visible{background:#efeee9;outline:0}.choice[aria-pressed=true]{background:var(--gold-soft);color:#70531c}.choice:focus-visible{box-shadow:0 0 0 2px #c8ad77}.form-note{margin:20px 0 0;padding-top:15px;border-top:1px solid var(--line);color:#777881;font-size:10px}.panel-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:17px}.reset{padding:0;border:0;background:none;color:var(--gold);font-size:10px;font-weight:700;letter-spacing:.09em;text-transform:uppercase}.live-note{color:#8a8b91;font-size:10px}
.results{min-width:0}.result-head{margin-bottom:17px}.result-head p{margin:7px 0 0;color:var(--muted);font-size:12px}.hero-result{padding:31px 33px;border-left:4px solid var(--gold);background:var(--ink);color:#fff}.hero-label{color:#ddd8cd;font-size:10px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}.hero-value{margin-top:8px;font-size:clamp(53px,7vw,78px);font-weight:700;line-height:.98;letter-spacing:-.05em}.hero-context{max-width:620px;margin:14px 0 0;color:#d0cec8;font-size:12px}.warning{display:none;margin-top:12px;padding:10px 12px;border:1px solid #dba99f;background:#fff2ef;color:#8c4033;font-size:11px}.warning.show{display:block}.metric-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:13px}.metric{min-height:115px;padding:18px;border:1px solid var(--line);background:#fff}.metric-label{display:block;color:#777882;font-size:9px;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.metric-value{display:block;margin-top:8px;font-size:25px;line-height:1.12;letter-spacing:-.035em}.metric-note{display:block;margin-top:7px;color:#74757d;font-size:9px;line-height:1.4}.formula-card{margin-top:22px;padding:22px 24px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--wash)}.formula-card h3{margin:0;font-size:16px}.formula{margin:9px 0 0;color:var(--navy);font-size:15px;font-weight:700}.formula-note{margin:7px 0 0;color:var(--muted);font-size:11px}.relationship{display:none;margin-top:12px;padding:12px 14px;border:1px solid #d7c49d;background:#fffaf0;color:#70531c;font-size:12px;font-weight:700}.relationship.show{display:block}
.learn{padding:70px 0;border-top:1px solid var(--line);background:#fff}.learn-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:90px}.learn h2{margin:0;font:600 36px/1.05 Cormorant,Georgia,serif}.learn-copy{margin:14px 0 0;color:var(--muted);font-size:14px}.related{margin-top:27px;padding-top:22px;border-top:1px solid var(--line)}.related h3{margin:0 0 10px;font-size:13px}.related-links{display:flex;flex-wrap:wrap;gap:8px}.related-links a{padding:8px 11px;border:1px solid var(--line);color:var(--ink);text-decoration:none;font-size:10px;font-weight:700}.related-links a:hover{border-color:#c9a96a;color:var(--gold)}.faq{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line)}.faq summary{position:relative;padding:17px 30px 17px 0;cursor:pointer;font-size:13px;font-weight:700;list-style:none}.faq summary:after{content:'+';position:absolute;right:2px;color:var(--gold);font-size:18px;font-weight:400}.faq details[open] summary:after{content:'−'}.faq p{margin:-3px 0 18px;color:var(--muted);font-size:12px}.disclaimer{padding:20px 0 34px;border-top:1px solid var(--line);color:#777881;font-size:10px}.site-footer{padding:25px 0 34px;border-top:1px solid var(--line);color:#74757d;font-size:11px}
noscript{display:block;padding:16px;border:1px solid #dba99f;background:#fff2ef;color:#8c4033}
@media(max-width:900px){.calculator-layout,.learn-grid{grid-template-columns:1fr;gap:42px}.input-panel{position:static}.main-site-nav{gap:16px;font-size:11px}.main-site-nav a:nth-child(2),.main-site-nav a:nth-child(3),.main-site-nav a:nth-child(4),.main-site-nav a:nth-child(5){display:none}}
@media(max-width:620px){.shell{width:min(100% - 32px,1180px)}.site-nav-shell{width:calc(100% - 32px);gap:16px}.brand-name{font-size:13px}.intro{padding-bottom:40px}.crumbs{padding-top:26px}.calculator-section{padding:34px 0 56px}.metric-grid{grid-template-columns:1fr}.hero-result{padding:25px 23px}.input-panel{padding:21px}.learn{padding:52px 0}.learn-grid{gap:34px}.main-site-nav a{display:none}.main-site-nav a:last-child{display:block}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}