.cnr{color-scheme:light;--ink:#152923;--muted:#4c6259;--line:#bfd0c6;--paper:#f6f8f3;--white:#fff;--green:#174f3d;--lime:#d9edbd;--red:#9b2c24}.cnr *{box-sizing:border-box}.cnr{scroll-behavior:smooth}.cnr{margin:0;background:var(--paper);color:var(--ink);font:17px/1.55 system-ui,-apple-system,Segoe UI,sans-serif}.cnr a{color:#165c46;text-underline-offset:3px}.cnr a:hover{text-decoration-thickness:2px}.cnr a:focus-visible,.cnr button:focus-visible,.cnr input:focus-visible,.cnr select:focus-visible{outline:3px solid #ef9d34;outline-offset:3px}.cnr .skip{position:absolute;left:-999px;top:8px;z-index:3;background:white;padding:8px}.cnr .skip:focus{left:8px}.cnr .site-head{display:flex;align-items:center;justify-content:space-between;gap:20px;background:#102f27;color:white;padding:16px max(20px,calc((100vw - 1120px)/2))}.cnr .site-head a{color:white}.cnr .brand{font-weight:800;font-size:1.2rem;text-decoration:none}.cnr .site-head nav{display:flex;flex-wrap:wrap;gap:18px}.cnr .site-head nav a[aria-current]{text-decoration:underline;text-decoration-color:var(--lime);text-decoration-thickness:3px}.cnr .wrap{max-width:1120px;margin:auto;padding:0 20px}.cnr .narrow{max-width:850px}.cnr .cnr-main{padding:46px 0 70px}.cnr .back{display:inline-block;margin-bottom:24px}.cnr .eyebrow{margin:0 0 8px;color:#2a6b51;font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.cnr h1{font-size:clamp(2.1rem,5vw,3.5rem);line-height:1.12;letter-spacing:-.03em;margin:0 0 18px}.cnr h1,.cnr h2,.cnr h3{overflow-wrap:anywhere}.cnr h2{font-size:clamp(1.4rem,3vw,2rem);line-height:1.2}.cnr h3{font-size:1.23rem;line-height:1.25}.cnr .lead{max-width:75ch;color:var(--muted);font-size:1.14rem;margin:0 0 32px}.cnr .grid{display:grid;gap:18px}.cnr .cards{grid-template-columns:repeat(3,minmax(0,1fr));margin-bottom:60px}.cnr .card,.cnr .panel,.cnr .note{background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:0 3px 16px rgba(9,36,25,.04)}.cnr .card{display:flex;flex-direction:column;min-height:240px;padding:24px;color:inherit;text-decoration:none}.cnr .card:hover{border-color:#347457;box-shadow:0 8px 24px rgba(9,36,25,.1)}.cnr .card h2{margin:10px 0}.cnr .card p{margin:0 0 22px;color:var(--muted)}.cnr .card .arrow{margin-top:auto;color:#075b3b;font-weight:750}.cnr .card.quiet{background:#eff6e9}.cnr .tag{font-size:.76rem;font-weight:800;color:#2b6b51;text-transform:uppercase;letter-spacing:.09em}.cnr .section-title{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.cnr .section-title h2{margin:0}.cnr .section-title p:last-child{max-width:360px;color:var(--muted)}.cnr .converter-grid{grid-template-columns:repeat(3,minmax(0,1fr));align-items:start}.cnr .panel{padding:24px}.cnr .converter{scroll-margin-top:24px}.cnr .converter h3{margin:0 0 10px}.cnr .hint{color:var(--muted);font-size:.92rem}.cnr .fields{display:grid;gap:16px}.cnr .fields.two{grid-template-columns:repeat(2,minmax(0,1fr));margin:14px 0 20px}.cnr .fields label{display:block;font-weight:650;font-size:.93rem}.cnr .fields input,.cnr .fields select{display:block;width:100%;margin-top:6px;padding:11px 12px;border:1.5px solid #8fa69a;border-radius:8px;background:#fff;color:#102f27;font:inherit;font-size:1rem;min-height:46px}.cnr .fields input[aria-invalid=true]{border-color:var(--red);background:#fff8f7}.cnr .error{min-height:1.5em;color:var(--red);font-weight:650}.cnr .actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.cnr button{border:1.5px solid var(--green);background:white;color:var(--green);border-radius:8px;padding:10px 14px;min-height:44px;font:inherit;font-weight:700;cursor:pointer}.cnr button:hover{background:#e9f4e9}.cnr button.primary{background:var(--green);color:white}.cnr button.primary:hover{background:#0c3b2d}.cnr .copy-status{color:var(--muted);min-height:1.4em;font-size:.87rem}.cnr .note{margin-top:32px;padding:24px;background:#e9f2e5}.cnr .note h2{margin-top:0}.cnr fieldset.panel{margin:0;border:1px solid var(--line)}.cnr legend{padding:0 8px;font-size:1.25rem;font-weight:800}.cnr .radio-row{display:flex;flex-wrap:wrap;gap:12px 24px;margin-bottom:20px}.cnr .radio-row label{display:flex;gap:8px;align-items:center;font-weight:700}.cnr .radio-row input{width:20px;height:20px;accent-color:var(--green)}.cnr [hidden]{display:none!important}.cnr .result{margin-top:24px;border-color:#43815b;background:#f4fbef}.cnr .metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px}.cnr .metrics div{padding:16px;background:white;border:1px solid var(--line);border-radius:10px}.cnr .metrics strong{display:block;font-size:1.7rem;line-height:1.15;color:#0a5136}.cnr .metrics span{display:block;color:var(--muted);font-size:.83rem}.cnr .formula,.cnr .caution{margin-top:20px}.cnr .caution{font-weight:750;color:#7e4613}.cnr footer{background:#102f27;color:white;padding:25px 0;font-size:.85rem}@media(max-width:840px){.cnr .cards,.cnr .converter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.cnr .site-head{padding-left:20px;padding-right:20px}}@media(max-width:560px){.cnr{font-size:16px}.cnr .site-head{display:block}.cnr .site-head nav{margin-top:10px;gap:12px}.cnr .cards,.cnr .converter-grid,.cnr .fields.two{grid-template-columns:1fr}.cnr .card{min-height:190px}.cnr .section-title{display:block}.cnr .panel{padding:18px}.cnr .cnr-main{padding:30px 0 55px}}@media print{.cnr .site-head,.cnr footer,.cnr .back,.cnr .actions,.cnr .copy-status,.cnr .skip{display:none!important}.cnr{background:white;color:black}.cnr .cnr-main{padding:0}.cnr .panel,.cnr .note{box-shadow:none;break-inside:avoid}.cnr .result{display:block!important}}

.cnr .cnr-page-heading{font-size:clamp(2.1rem,5vw,3.5rem);line-height:1.12;letter-spacing:-.03em;margin:0 0 18px}
.entry-header{position:absolute!important;width:1px!important;height:1px!important;overflow:hidden!important;clip-path:inset(50%)!important;white-space:nowrap!important}

/* CompoundNation shop skin. Kept inside the calculator root so WooCommerce,
 * theme navigation and unrelated content remain byte-for-byte untouched. */
.cnr{
  color-scheme:dark;
  --ink:#f7faf5;
  --muted:#b9c5b5;
  --line:rgba(255,255,255,.14);
  --paper:#08100c;
  --white:#111811;
  --green:#a8ef27;
  --lime:#a8ef27;
  --red:#ffb4ab;
  overflow:hidden;
  border:1px solid rgba(168,239,39,.18);
  border-radius:22px;
  background:
    radial-gradient(circle at 82% 3%,rgba(168,239,39,.11),transparent 27%),
    linear-gradient(180deg,#111811,#08100c 38%);
  box-shadow:0 18px 55px rgba(0,0,0,.28);
}
.entry-content>.cnr{margin-block:0!important}
.cnr .eyebrow,.cnr .tag,.cnr .card .arrow,.cnr a{color:var(--lime)}
.cnr .lead,.cnr .card p,.cnr .hint,.cnr .copy-status,
.cnr .section-title p:last-child,.cnr .metrics span{color:var(--muted)}
.cnr .card,.cnr .panel,.cnr .note{
  border-color:var(--line);
  background:linear-gradient(145deg,#172016,#0c100c);
  box-shadow:0 12px 32px rgba(0,0,0,.22);
}
.cnr .card.quiet,.cnr .note{background:linear-gradient(145deg,#1b281b,#101710)}
.cnr .card:hover{border-color:rgba(168,239,39,.62);box-shadow:0 16px 38px rgba(0,0,0,.32)}
.cnr .fields input,.cnr .fields select{
  border-color:#8fa69a;
  background:#f7faf5;
  color:#102f27;
}
.cnr button{
  border-color:var(--lime);
  background:#111811;
  color:var(--lime);
}
.cnr button:hover{background:#1d2a1d}
.cnr button.primary{border-color:var(--lime);background:var(--lime);color:#071006}
.cnr button.primary:hover{background:#c1f56a;color:#071006}
.cnr .result{border-color:rgba(168,239,39,.55);background:#111b12}
.cnr .metrics div{border-color:var(--line);background:#0b120d}
.cnr .metrics strong{color:var(--lime)}
.cnr .caution{color:#ffcf8a}
.cnr .error{color:var(--red)}
@media(max-width:560px){
  .cnr{border-radius:16px}
}

/* Theme heading colors are more specific than inherited .cnr text color.
 * Keep every calculator heading on the verified high-contrast shop white. */
.cnr h1,.cnr h2,.cnr h3,.cnr .cnr-page-heading{
  color:var(--ink);
}