:root{
  --ink:#16202b; --muted:#5a6b7b; --line:#e3e8ee; --bg:#ffffff;
  --accent:#0b6e4f; --accent-ink:#fff; --soft:#f5f7f9; --warn:#9a3b2f;
  --cat:var(--accent); --cat-soft:#eef4f1;
  --maxw:46rem;
}
/* Per-category theming — distinct, professional, all AA-contrast on white */
[data-cat="pricing-profit"]{--cat:#0b6e4f;--cat-soft:#e9f3ee}
[data-cat="cash-flow"]{--cat:#1f6f8b;--cat-soft:#e8f1f4}
[data-cat="investment-returns"]{--cat:#5b46b8;--cat-soft:#eeebf8}
[data-cat="growth-metrics"]{--cat:#a85b00;--cat-soft:#f6eee2}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--ink);background:var(--bg);
  font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
.wrap,main{max-width:var(--maxw);margin-inline:auto;padding-inline:1.1rem}
main{padding-block:2rem 3rem}
a{color:var(--accent);text-underline-offset:2px}
a:hover{text-decoration:underline}
h1{font-size:1.85rem;line-height:1.2;margin:.2em 0 .6em}
h2{font-size:1.3rem;margin:2rem 0 .6rem}
p{margin:.7em 0}
.muted{color:var(--muted)} .small{font-size:.85rem}
.skip{position:absolute;left:-999px}
.skip:focus{left:.5rem;top:.5rem;background:var(--ink);color:#fff;padding:.5rem .8rem;border-radius:6px;z-index:10}

.site-header{border-bottom:1px solid var(--line);background:var(--soft)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;padding-block:.8rem}
.brand{font-weight:700;color:var(--ink);text-decoration:none;font-size:1.1rem}
.site-header nav a{margin-left:1rem;color:var(--muted);text-decoration:none;font-size:.95rem}
.site-header nav a:hover{color:var(--ink)}

.hero{padding:1.5rem 0 .5rem}
.hero h1{margin-bottom:.2em}
.lede{font-size:1.1rem;color:var(--muted);max-width:38rem}

.hero-points{list-style:none;padding:0;margin:.9rem 0 0;display:flex;flex-wrap:wrap;gap:.4rem .5rem}
.hero-points li{font-size:.82rem;color:var(--muted);background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:.25rem .7rem}
.cat{margin-top:1.9rem}
.cat h2{display:flex;align-items:center;gap:.55rem;border:0;padding:0}
.cat-ico{display:inline-flex;width:1.6rem;height:1.6rem;color:var(--cat);flex:none;background:var(--cat-soft);border-radius:7px;padding:.22rem}
.cat-ico svg{width:100%;height:100%}
.tool-list,.guide-list{list-style:none;padding:0;margin:0;display:grid;gap:.6rem}
@media(min-width:40rem){.tool-list{grid-template-columns:1fr 1fr}}
.tool-list a{display:block;border:1px solid var(--line);border-left:4px solid var(--cat);border-radius:10px;padding:.9rem 1rem;text-decoration:none;color:var(--ink);background:#fff;transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease}
.tool-list a:hover{border-color:var(--cat);transform:translateY(-2px);box-shadow:0 6px 18px -10px rgba(22,32,43,.45)}
.tool-list strong{display:block;color:var(--cat)}
.tool-list span{display:block;color:var(--muted);font-size:.9rem;margin-top:.15rem}
@media(prefers-reduced-motion:reduce){.tool-list a{transition:none}.tool-list a:hover{transform:none}}

.crumbs{font-size:.85rem;color:var(--muted);margin-bottom:.4rem}
.crumbs a{color:var(--muted)}
.crumbs span{color:var(--cat);font-weight:600}

.widget{border:1px solid var(--line);border-radius:12px;padding:1.1rem;margin:1rem 0 1.6rem;background:var(--soft)}
.fields{display:grid;gap:.9rem}
@media(min-width:34rem){.fields{grid-template-columns:1fr 1fr}}
.field label{display:block;font-weight:600;font-size:.92rem;margin-bottom:.25rem}
.field .unit{color:var(--muted);font-weight:400}
.field input{width:100%;padding:.6rem .65rem;font-size:1rem;border:1px solid var(--line);border-radius:8px;background:#fff}
.field input:focus{outline:2px solid var(--cat);outline-offset:1px}
.field .help{font-size:.8rem;color:var(--muted);margin:.3rem 0 0}

/* Scenario presets */
.presets{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem;margin-top:1rem}
.presets-label{font-size:.85rem;color:var(--muted);font-weight:600;margin-right:.2rem}
.preset{font:inherit;font-size:.85rem;cursor:pointer;border:1px solid var(--line);background:var(--cat-soft);color:var(--cat);font-weight:600;border-radius:999px;padding:.3rem .8rem}
.preset:hover{border-color:var(--cat);filter:brightness(.97)}
.preset:focus-visible{outline:2px solid var(--cat);outline-offset:1px}

/* Answer card */
.results{margin-top:1.1rem;background:#fff;border:1px solid var(--line);border-radius:12px;padding:1.1rem;display:grid;gap:.85rem}
.answer{display:flex;flex-wrap:wrap;gap:1.4rem}
.answer-primary{display:flex;flex-direction:column-reverse;gap:.15rem;padding:.1rem 0 .1rem .85rem;background:none;border:0;border-left:4px solid var(--cat)}
.answer-primary .result-value{font-size:2rem;font-weight:800;line-height:1.1;color:var(--cat)}
.answer-primary .result-label{font-size:.85rem;color:var(--muted);font-weight:600}
.answer-primary .result-value.warn{font-size:1.05rem;color:var(--warn)}

.viz{display:grid;gap:.4rem}
.bar{position:relative;height:14px;border-radius:999px;background:var(--soft);overflow:hidden;border:1px solid var(--line)}
.bar-fill{position:absolute;inset:0 auto 0 0;background:var(--cat);border-radius:999px;transition:width .25s ease}
.bar.split{display:flex;overflow:hidden}
.bar .seg{height:100%;display:block}
.bar .seg-0{background:var(--cat)} .bar .seg-1{background:#cdaa3d}
.bar.meter .benchmark{position:absolute;top:-3px;bottom:-3px;width:2px;background:var(--ink)}
.viz-cap{font-size:.82rem;color:var(--muted);margin:0;display:flex;flex-wrap:wrap;gap:.2rem .9rem}
.viz-cap .key{display:inline-flex;align-items:center;gap:.3rem}
.viz-cap .sw{width:.7rem;height:.7rem;border-radius:2px;display:inline-block}
.viz-cap .sw-0{background:var(--cat)} .viz-cap .sw-1{background:#cdaa3d}

.interpretation{margin:0;padding:.7rem .85rem;background:var(--cat-soft);border-left:3px solid var(--cat);border-radius:0 8px 8px 0;font-size:.95rem;color:var(--ink)}
.result-grid{display:grid;gap:.5rem}
@media(min-width:34rem){.result-grid{grid-template-columns:1fr 1fr}}
.result{display:flex;flex-wrap:wrap;align-items:baseline;justify-content:space-between;gap:.3rem 1rem;padding:.55rem .75rem;background:var(--soft);border-radius:8px}
.result-label{font-weight:600;font-size:.92rem}
.result-value{font-variant-numeric:tabular-nums;font-size:1.1rem;font-weight:700}
.result-value.warn{color:var(--warn);font-size:.92rem;font-weight:600}
.result-help{flex-basis:100%;font-size:.8rem;color:var(--muted)}
.result-actions{display:flex;justify-content:flex-end}
.btn{font:inherit;font-size:.88rem;cursor:pointer;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:8px;padding:.45rem .9rem}
.btn:hover{border-color:var(--cat);color:var(--cat)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
.nojs{font-size:.85rem;color:var(--muted);margin:0}
body.js .nojs{display:none}
@media(prefers-reduced-motion:reduce){.bar-fill{transition:none}}

.prose{max-width:40rem}
.prose h2{border-top:1px solid var(--line);padding-top:1.3rem}
.faq details{border:1px solid var(--line);border-radius:8px;padding:.6rem .85rem;margin:.5rem 0;background:#fff}
.faq summary{cursor:pointer;font-weight:600}
.faq details>div{margin-top:.5rem;color:var(--ink)}

.affiliate{border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:8px;padding:.9rem 1rem;margin:1.6rem 0;background:var(--soft)}
.affiliate ul{margin:.4rem 0;padding-left:1.1rem}
.related ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:.5rem}
.related a{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:.35rem .8rem;text-decoration:none;font-size:.9rem}

.site-footer{border-top:1px solid var(--line);background:var(--soft);margin-top:2rem}
.site-footer .wrap{padding-block:1.4rem 2rem;font-size:.88rem}
.site-footer nav a{color:var(--muted)}