:root{--ink:#22303c;--ink2:#3c4c5a;--porc:#f7f4ec;--paper:#efe9db;--card:#fffdf8;--red:#cf3f2e;--red2:#a92f21;--brass:#b08a3c;--sage:#e8ebdd;--line:#ddd5c3;--muted:#69737c;--radius:16px}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:Inter,system-ui,sans-serif;background:var(--porc);color:var(--ink);font-size:16.5px;line-height:1.6}
h1,h2,h3{font-family:Fraunces,Georgia,serif;line-height:1.15;color:var(--ink)}
.mono{font-family:"IBM Plex Mono",monospace}
header{background:var(--ink);position:sticky;top:0;z-index:50}
.hbar{max-width:1180px;margin:0 auto;padding:0 20px;height:62px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--red);display:grid;place-items:center}
.brand-name{font-family:Fraunces,serif;font-weight:700;font-size:19px;line-height:1.05}
.brand-name small{display:block;font-family:Inter,sans-serif;font-weight:600;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:#c8b98a}
nav.main{display:flex;gap:26px;align-items:center}
nav.main a{color:#e6e1d2;text-decoration:none;font-size:15px;font-weight:500}
nav.main a.cta{background:var(--red);color:#fff;padding:8px 15px;border-radius:9px;font-weight:600}
.burger{display:none;background:none;border:0;color:#fff;font-size:23px;cursor:pointer}
.wrap{max-width:860px;margin:0 auto;padding:0 20px}
.hero{text-align:center;padding:52px 0 30px}
.kicker{display:inline-block;background:var(--sage);color:#51603c;border:1px solid #ccd4b4;font-size:12px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;padding:5px 13px;border-radius:99px;margin-bottom:18px}
.hero h1{font-size:47px;font-weight:700;letter-spacing:-.01em}
.hero h1 em{font-style:italic;color:var(--red)}
.hero .sub{max-width:640px;margin:16px auto 0;color:var(--ink2);font-size:18px}
.trust{display:flex;gap:10px 26px;justify-content:center;flex-wrap:wrap;margin-top:22px;color:var(--ink2);font-size:14.5px}
.trust b{color:var(--red)}
.calc{max-width:740px;margin:26px auto 0;background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:0 24px 48px -28px rgba(34,48,60,.35);overflow:hidden;text-align:left}
.calc-head{background:var(--ink);color:#fff;padding:15px 24px;display:flex;align-items:center;gap:10px}
.calc-head .dot{width:9px;height:9px;border-radius:50%;background:var(--red)}
.calc-head h2{color:#fff;font-size:19px}
.calc-head span{margin-left:auto;font-size:12.5px;color:#b9c2ca}
.calc-body{padding:24px}
.seg-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.seg-label{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:7px}
.seg{display:flex;background:var(--paper);border-radius:11px;padding:4px;gap:4px}
.seg button{flex:1;border:0;background:transparent;padding:8px 4px;border-radius:8px;font:inherit;font-size:14px;font-weight:600;color:var(--ink2);cursor:pointer}
.seg button.on{background:var(--ink);color:#fff}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px}
.field label small{color:var(--muted);font-weight:500}
.input{display:flex;align-items:center;border:1.5px solid var(--line);border-radius:11px;background:#fff;overflow:hidden}
.input input{flex:1;border:0;padding:11px 13px;font:inherit;font-size:16.5px;font-family:"IBM Plex Mono",monospace;min-width:0;background:transparent;color:var(--ink)}
.input .unit{padding:0 13px;color:var(--muted);font-size:13.5px;font-weight:600;border-left:1px solid var(--line);align-self:stretch;display:flex;align-items:center;background:var(--porc)}
.field select{width:100%;border:1.5px solid var(--line);border-radius:11px;padding:11px 13px;font:inherit;background:#fff;color:var(--ink)}
.results{margin-top:24px;border-top:2px dashed var(--line);padding-top:20px}
.results h3{font-size:17px;margin-bottom:13px}
.hero-result{background:var(--ink);color:#fff;border-radius:14px;padding:18px 22px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.hero-result .lbl{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#c8b98a}
.hero-result .val{font-family:"IBM Plex Mono",monospace;font-size:37px;font-weight:600;line-height:1.1}
.hero-result .buy{font-size:14px;color:#d8dee3;text-align:right}
.hero-result .buy b{display:block;color:#fff;font-size:16.5px}
.settable{margin-top:16px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.settable table{width:100%;border-collapse:collapse;font-size:14.5px}
.settable th{background:var(--sage);text-align:left;padding:9px 13px;font-size:12px;letter-spacing:.09em;text-transform:uppercase;color:#51603c}
.settable td{padding:8.5px 13px;border-top:1px solid var(--line)}
.settable td.num{font-family:"IBM Plex Mono",monospace;text-align:right;white-space:nowrap}
.calc-actions{display:flex;gap:14px;align-items:center;margin-top:18px;flex-wrap:wrap}
.btn-print{background:var(--red);color:#fff;border:0;padding:11px 20px;border-radius:10px;font:inherit;font-weight:600;cursor:pointer}
.calc-actions span{font-size:13.5px;color:var(--muted)}
figure.diagram{max-width:740px;margin:22px auto 0;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px 22px 12px}
figure.diagram figcaption{font-size:13.5px;color:var(--muted);text-align:center;padding:8px 0 6px}
section{padding:44px 0 6px}
.sec-kicker{font-size:12px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--red);margin-bottom:8px}
section h2{font-size:31px;font-weight:700;margin-bottom:14px}
section p{margin-bottom:13px;color:var(--ink2)}
section p b,section li b{color:var(--ink)}
ul.tight{margin:0 0 13px 20px;color:var(--ink2)}ul.tight li{margin-bottom:7px}
.bigtable{overflow-x:auto;border:1px solid var(--line);border-radius:14px;margin:16px 0;background:var(--card)}
.bigtable table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.bigtable th{background:var(--ink);color:#fff;text-align:left;padding:11px 14px;font-size:13px;letter-spacing:.05em}
.bigtable td{padding:10px 14px;border-top:1px solid var(--line)}
.bigtable tr.hl td{background:#fbeae7;font-weight:600}
.bigtable td.num{font-family:"IBM Plex Mono",monospace}
.note{background:#fbeae7;border:1px solid #efc4bb;border-left:5px solid var(--red);border-radius:12px;padding:15px 18px;margin:16px 0;color:#6d2a20;font-size:15.5px}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
.xcard{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:19px}
.xcard .tag{font-size:11.5px;font-weight:700;letter-spacing:.11em;text-transform:uppercase;color:var(--brass);margin-bottom:8px}
.xcard h3{font-size:18.5px;margin-bottom:8px}
.xcard p{font-size:14.5px;margin:0}
.xcard .res{margin-top:12px;padding-top:11px;border-top:1px dashed var(--line);font-size:14.5px}
.toolgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
a.tool{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px;text-decoration:none;color:var(--ink);display:block}
a.tool:hover{border-color:var(--red)}
a.tool h3{font-size:18px;margin-bottom:5px}
a.tool p{font-size:14px;color:var(--muted);margin:0}
a.tool .star{color:var(--red);font-weight:700}
.methods{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px}
.methods .srcs{font-size:14.5px;color:var(--ink2);margin:10px 0}
.byline{display:flex;align-items:center;gap:12px;margin-top:14px}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:700;font-family:Fraunces,serif}
.byline .who{font-weight:600;font-size:15px}
.byline .who small{display:block;color:var(--muted);font-weight:500}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;padding:15px 19px}
.faq summary{font-weight:600;cursor:pointer;font-size:16.5px}
.faq details p{margin:10px 0 2px;font-size:15px}
footer{background:var(--ink);color:#c3ccd3;margin-top:56px}
.foot{max-width:1180px;margin:0 auto;padding:42px 20px 8px;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.foot h4{color:#fff;font-family:Fraunces,serif;font-size:16.5px;margin-bottom:12px}
.foot a{display:block;color:#c3ccd3;text-decoration:none;font-size:14.5px;margin-bottom:8px}
.foot .fbrand{font-family:Fraunces,serif;font-size:21px;color:#fff;margin-bottom:9px}
.foot p{font-size:14.5px;max-width:300px}
.legal{max-width:1180px;margin:0 auto;padding:16px 20px 24px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#8d99a3;border-top:1px solid #33424f;margin-top:22px}
@media (max-width:720px){
 nav.main a{display:none}.brand-name{font-size:16.5px}.burger{display:block}
 .hero{padding:36px 0 22px}.hero h1{font-size:34px}
 .seg-row,.grid{grid-template-columns:1fr}
 .cards3,.toolgrid{grid-template-columns:1fr}
 .foot{grid-template-columns:1fr 1fr}
 section h2{font-size:26px}.calc-body{padding:18px}
 .hero-result .val{font-size:31px}
}

/* inner pages + nav (build additions) */
.crumbs{max-width:860px;margin:0 auto;padding:20px 20px 0;font-size:13.5px;color:var(--muted)}
.crumbs a{color:var(--red);text-decoration:none;font-weight:600}
.hero-inner{text-align:center;padding:34px 0 8px}
.hero-inner h1{font-size:38px;font-weight:700}
.hero-inner .sub{max-width:640px;margin:13px auto 0;color:var(--ink2);font-size:17.5px}
.nav-group{position:relative}
.nav-dropdown{display:none;position:absolute;top:calc(100% + 6px);left:0;background:#fffdf8;border:1px solid var(--line);border-radius:12px;box-shadow:0 16px 34px -14px rgba(34,48,60,.35);padding:8px;min-width:235px;z-index:60}
.nav-dropdown a{display:block;color:var(--ink)!important;padding:8px 11px!important;border-radius:8px;font-size:14px!important}
.nav-dropdown a:hover{background:var(--porc)}
@media (min-width:721px){ .nav-group:hover .nav-dropdown,.nav-group:focus-within .nav-dropdown{display:block} }
.mobile-nav{display:none;background:#1a2732;padding:8px 14px 14px;max-height:calc(100dvh - 62px);overflow-y:auto}
.mobile-nav.open{display:block}
.mobile-nav a{display:block;color:#e6e1d2;font-size:15px;font-weight:500;padding:9px 6px;border-top:1px solid #33424f;text-decoration:none}
.hl-cell{background:#fbeae7!important;font-weight:700}
@media (max-width:720px){ .hero-inner h1{font-size:30px} }

/* result tiles (inner calculators) */
.tile{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.tile .t{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}
.tile .v{font-family:"IBM Plex Mono",monospace;font-size:19px;font-weight:600;color:var(--ink)}
.tile .v small{font-size:12.5px;color:var(--muted);font-family:Inter,sans-serif;font-weight:600}
@media (max-width:720px){ .results .tiles{grid-template-columns:1fr 1fr!important} }