/* HerdMath — shared styles */
:root{
  --ground:#F4F6F1; --paper:#FFFFFF; --ink:#1B241E; --muted:#56625A; --rule:#D6DDD3;
  --pine:#2E5D3A; --pine-dark:#224A2D; --pine-soft:#E3ECE3;
  --hay:#D9A521; --hay-soft:#FBF0CC; --barn:#9E3B2C; --barn-soft:#F6E0DA;
  --display:"Zilla Slab",Georgia,"Times New Roman",serif;
  --body:"Source Sans 3",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --radius:6px; --max:1120px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ground);color:var(--ink);font:17px/1.6 var(--body)}
img,svg{max-width:100%;height:auto}
a{color:var(--pine);text-underline-offset:3px}
a:hover{color:var(--pine-dark)}
:focus-visible{outline:3px solid var(--hay);outline-offset:2px}
.container{max-width:var(--max);margin:0 auto;padding-inline:16px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;background:var(--paper);padding:8px 12px;z-index:10}

/* header */
.site-header{background:var(--pine);color:#fff}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:62px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font:700 24px/1 var(--display);letter-spacing:.01em}
.logo:hover{color:#fff}
.logo svg{width:32px;height:32px}
.logo span b{color:var(--hay)}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:#E8F0E8;text-decoration:none;font-weight:600;font-size:15px;padding:8px 10px;border-radius:4px}
.nav a:hover,.nav a[aria-current="page"]{background:rgba(255,255,255,.12);color:#fff}

/* type */
h1,h2,h3{font-family:var(--display);line-height:1.15;text-wrap:balance;margin:0}
h1{font-size:clamp(32px,5vw,48px);font-weight:700}
h2{font-size:28px;font-weight:700;margin-top:44px;margin-bottom:12px}
h3{font-size:21px;font-weight:700;margin-top:26px;margin-bottom:8px}
p,li{max-width:70ch}
.lede{font-size:19px;color:var(--muted);margin:12px 0 0;max-width:62ch}
.crumbs{font-size:14px;color:var(--muted);padding-block:18px 10px}
.crumbs a{color:var(--muted)}
.page-head{padding-bottom:22px}

/* tool card */
.tool{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);box-shadow:0 1px 0 var(--rule),0 12px 28px -18px rgba(27,36,30,.35);display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.tool-inputs{padding:24px;border-right:1px solid var(--rule);display:grid;gap:16px;align-content:start}
.tool-results{padding:24px;background:linear-gradient(180deg,var(--pine-soft),var(--paper) 140px)}
.field{display:grid;gap:6px}
.field label,.field .label{font-weight:600;font-size:15px}
.field small{color:var(--muted);font-size:13px}
input,select{font:inherit;font-size:17px;color:var(--ink);background:var(--paper);border:1px solid #B9C4BB;border-radius:4px;padding:10px 12px;width:100%;min-height:46px}
input:focus,select:focus{border-color:var(--pine);outline:2px solid var(--pine-soft)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.seg{display:flex;border:1px solid #B9C4BB;border-radius:4px;overflow:hidden}
.seg label{flex:1;text-align:center;padding:9px 6px;cursor:pointer;font-weight:600;font-size:15px;border-left:1px solid #B9C4BB}
.seg label:first-child{border-left:0}
.seg input{position:absolute;opacity:0;width:1px;height:1px}
.seg input:checked+span{color:#fff}
.seg label:has(input:checked){background:var(--pine);color:#fff}
.seg label:has(input:focus-visible){outline:3px solid var(--hay);outline-offset:-3px}
.btn{font:600 16px/1 var(--body);border:0;border-radius:4px;padding:12px 16px;cursor:pointer;background:var(--pine);color:#fff;min-height:44px;display:inline-flex;align-items:center;gap:8px;text-decoration:none}
.btn:hover{background:var(--pine-dark);color:#fff}
.btn.ghost{background:transparent;color:var(--pine);border:1px solid var(--pine)}
.btn.ghost:hover{background:var(--pine-soft);color:var(--pine-dark)}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

/* results */
.result-label{font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.result-big{font:700 clamp(30px,4.4vw,42px)/1.1 var(--display);color:var(--pine-dark);margin:6px 0 2px;font-variant-numeric:tabular-nums}
.result-sub{color:var(--muted);margin:0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:4px;overflow:hidden;margin-top:18px}
.stats div{background:var(--paper);padding:12px 14px}
.stats b{display:block;font:700 22px/1.2 var(--display);font-variant-numeric:tabular-nums}
.stats span{font-size:13px;color:var(--muted)}
.timeline{list-style:none;margin:20px 0 0;padding:0;border-left:3px solid var(--pine-soft)}
.timeline li{position:relative;padding:0 0 14px 18px}
.timeline li::before{content:"";position:absolute;left:-8px;top:6px;width:13px;height:13px;border-radius:50%;background:var(--paper);border:3px solid var(--pine)}
.timeline li.key::before{background:var(--barn);border-color:var(--barn)}
.timeline time{display:block;font-weight:700;font-variant-numeric:tabular-nums}
.timeline span{color:var(--muted);font-size:15px}
.warn{background:var(--hay-soft);border-left:4px solid var(--hay);padding:10px 14px;border-radius:0 4px 4px 0;font-size:15px;margin-top:16px}
.error{color:var(--barn);font-weight:600}

/* content */
.content{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;padding-block:18px 60px}
.article{min-width:0}
.aside{display:grid;gap:18px;align-content:start}
.panel{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:18px}
.panel h3{margin-top:0;font-size:19px}
.panel ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.table-wrap{overflow-x:auto;border:1px solid var(--rule);border-radius:4px;background:var(--paper);margin:14px 0}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--rule);font-variant-numeric:tabular-nums}
th{background:var(--pine-soft);font-weight:700}
tr:last-child td{border-bottom:0}
details{border-bottom:1px solid var(--rule);padding:12px 0}
summary{cursor:pointer;font-weight:700;font-size:17px}
details p{margin:8px 0 0}
.sources{font-size:14px;color:var(--muted)}
code,.embed-code{font:13px/1.5 ui-monospace,Consolas,monospace}
.embed-code{width:100%;min-height:86px;resize:vertical;padding:10px}

/* home */
.hero{padding-block:44px 30px}
.hero h1{font-size:clamp(36px,6vw,60px);max-width:16ch}
.cats{display:grid;gap:34px;padding-bottom:60px}
.cat h2{margin:0 0 12px;display:flex;align-items:baseline;gap:12px}
.cat h2 small{font:600 14px var(--body);color:var(--muted)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.card{background:var(--paper);border:1px solid var(--rule);border-radius:var(--radius);padding:16px 18px;text-decoration:none;color:var(--ink);display:grid;gap:4px;transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--pine);transform:translateY(-2px);color:var(--ink)}
.card b{font:700 19px/1.2 var(--display);color:var(--pine-dark)}
.card span{font-size:15px;color:var(--muted)}

/* footer */
.site-footer{background:#18211B;color:#C9D3CB;padding-block:34px;font-size:15px}
.site-footer a{color:#E8F0E8}
.site-footer .container{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.site-footer p{margin:6px 0}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:6px}
.site-footer .fine{grid-column:1/-1;border-top:1px solid #2E3A31;padding-top:16px;font-size:13px;color:#93A096}

/* embed mode */
.embed .site-header,.embed .site-footer,.embed .crumbs,.embed .content,.embed .page-head .lede{display:none}
.embed body,.embed{background:var(--paper)}
.embed .page-head{padding:8px 0}
.embed .page-head h1{font-size:22px}
.embed-credit{display:none;font-size:13px;text-align:right;padding:8px 4px}
.embed .embed-credit{display:block}

@media (max-width:860px){
  .tool{grid-template-columns:1fr}
  .tool-inputs{border-right:0;border-bottom:1px solid var(--rule)}
  .content{grid-template-columns:1fr}
  .site-footer .container{grid-template-columns:1fr}
}
@media (max-width:420px){.row{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}
@media print{
  .site-header,.site-footer,.aside,.actions,.crumbs,.tool-inputs,.no-print,.embed-box{display:none!important}
  body{background:#fff}
  .tool{box-shadow:none;border:0;grid-template-columns:1fr}
  .tool-results{background:none;padding:0}
}

/* breeding planner rows */
.plan-row{display:grid;grid-template-columns:1.3fr 1fr 1.2fr auto;gap:10px;align-items:end;padding-bottom:12px;border-bottom:1px dashed var(--rule)}
.plan-row .btn{min-width:44px;justify-content:center}
@media (max-width:560px){.plan-row{grid-template-columns:1fr 1fr}.plan-row .field:first-child{grid-column:1/-1}}

/* guides */
.guide-body{max-width:720px}
.guide-body h2{font-size:26px}
.answer{background:var(--paper);border:1px solid var(--rule);border-left:4px solid var(--pine);padding:14px 18px;border-radius:0 6px 6px 0;font-size:18px;margin:18px 0}
.cta-tool{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;background:var(--pine-soft);border-radius:6px;padding:16px 18px;margin:22px 0}
.cta-tool b{font-family:var(--display);font-size:20px}
.meta{color:var(--muted);font-size:14px}
.tool.wide{grid-template-columns:1fr}
.tool.wide .tool-inputs{border-right:0;border-bottom:1px solid var(--rule)}