/* Bird Feeder Web -- design system. Mobile-first, no web fonts, no layout shift. */
:root{
  --bg:#faf7f0; --bg-alt:#f2ede2; --surface:#ffffff; --line:#e2dbcc; --line-soft:#ece6da;
  --text:#1b2320; --muted:#5d6862; --heading:#14261e;
  --brand:#1d5138; --brand-soft:#e6efe8; --brand-ink:#123526;
  --accent:#a8570f; --accent-soft:#fbf0e2;
  --warn:#8a4b12; --warn-soft:#fdf2e0; --warn-line:#e9cfa4;
  --key:#1d4f6b; --key-soft:#e8f1f6; --key-line:#bcd8e6;
  --shadow:0 1px 2px rgba(20,30,25,.06),0 8px 24px -14px rgba(20,30,25,.28);
  --radius:14px; --radius-sm:9px;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --wrap:1180px; --measure:70ch;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#111614; --bg-alt:#161d1a; --surface:#18201d; --line:#2b3733; --line-soft:#232d29;
    --text:#e6e8e4; --muted:#a3b0aa; --heading:#f1f3ef;
    --brand:#7fc4a0; --brand-soft:#1a2a23; --brand-ink:#a8dcc0;
    --accent:#e6a45c; --accent-soft:#241b12;
    --warn:#e8b578; --warn-soft:#241c11; --warn-line:#4a3a22;
    --key:#8ec6e4; --key-soft:#141f26; --key-line:#2c4351;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 28px -16px rgba(0,0,0,.7);
  }
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:5rem}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.01ms!important;transition-duration:.01ms!important}}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);
  font-size:1.0625rem;line-height:1.68;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;height:auto}
a{color:var(--brand);text-underline-offset:.18em;text-decoration-thickness:.06em}
a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:3px}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:1.15rem}
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:.7rem 1rem;z-index:99;border-radius:0 0 8px 0}
.skip:focus{left:0}
.ico{width:1.15em;height:1.15em;flex:none}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.head-inner{display:flex;align-items:center;gap:.75rem;min-height:3.65rem}
.brand{display:flex;align-items:center;gap:.5rem;white-space:nowrap;font-family:var(--serif);font-size:1.16rem;font-weight:700;
  color:var(--heading);text-decoration:none;letter-spacing:-.01em;margin-right:auto}
.brand-mark{width:1.55rem;height:1.55rem;color:var(--brand)}
.brand-accent{color:var(--brand)}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:2.6rem;height:2.6rem;
  background:none;border:1px solid var(--line);border-radius:9px;color:var(--text);cursor:pointer}
.nav-bars,.nav-bars::before,.nav-bars::after{display:block;width:17px;height:2px;background:currentColor;border-radius:2px;position:relative;transition:transform .18s}
.nav-bars::before,.nav-bars::after{content:"";position:absolute;left:0}
.nav-bars::before{top:-5px}.nav-bars::after{top:5px}
[aria-expanded="true"] .nav-bars{background:transparent}
[aria-expanded="true"] .nav-bars::before{transform:translateY(5px) rotate(45deg)}
[aria-expanded="true"] .nav-bars::after{transform:translateY(-5px) rotate(-45deg)}
.site-nav{display:none;position:absolute;inset:100% 0 auto 0;background:var(--surface);border-bottom:1px solid var(--line);
  padding:.6rem 1.15rem 1.1rem;box-shadow:var(--shadow)}
.site-nav.open{display:block}
.site-nav ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:.15rem}
.site-nav a{display:block;padding:.6rem .5rem;border-radius:8px;text-decoration:none;color:var(--text);font-weight:600;font-size:.95rem}
.site-nav a:hover{background:var(--brand-soft);color:var(--brand-ink)}
.site-nav a[aria-current]{color:var(--brand);background:var(--brand-soft)}
.nav-search{position:relative;margin-top:.7rem;display:flex;align-items:center}
.nav-search input{width:100%;padding:.6rem 2.2rem .6rem .8rem;border:1px solid var(--line);border-radius:9px;
  background:var(--bg);color:var(--text);font:inherit;font-size:.95rem}
.nav-search .ico{position:absolute;right:.7rem;color:var(--muted);pointer-events:none}
.search-pop{position:absolute;top:calc(100% + .4rem);left:0;right:0;background:var(--surface);border:1px solid var(--line);
  border-radius:10px;box-shadow:var(--shadow);max-height:60vh;overflow:auto;z-index:60;padding:.3rem}
.search-pop a{display:block;padding:.5rem .6rem;border-radius:7px;text-decoration:none;color:var(--text)}
.search-pop a:hover,.search-pop a.sel{background:var(--brand-soft)}
.search-pop .sr-t{display:block;font-weight:600;font-size:.94rem}
.search-pop .sr-c{display:block;font-size:.76rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.search-pop .sr-none{padding:.7rem;color:var(--muted);font-size:.92rem}
@media (min-width:70rem){
  .nav-toggle{display:none}
  .site-nav{display:flex;position:static;align-items:center;gap:1rem;background:none;border:0;box-shadow:none;padding:0}
  .site-nav ul{display:flex;gap:.1rem}
  .site-nav a{padding:.42rem .55rem;font-size:.88rem;white-space:nowrap}
  .nav-search{margin:0;width:11.5rem;flex:none}
  .nav-search input{padding-block:.45rem;font-size:.88rem}
}

/* ---------- layout ---------- */
main{display:block;padding-bottom:2.5rem}
.crumbs{padding:.9rem 0 .2rem;font-size:.83rem;color:var(--muted)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:.35rem;margin:0;padding:0}
.crumbs li+li::before{content:"›";margin-right:.35rem;color:var(--line)}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--brand);text-decoration:underline}
.layout{display:block;padding-top:.6rem}
@media (min-width:64rem){
  .layout{display:grid;grid-template-columns:minmax(0,1fr) 15.5rem;column-gap:3rem;row-gap:0;align-items:start}
  .layout .page-head{grid-column:1/-1}
  .layout-wide{display:block}
  .side{position:sticky;top:5rem;max-height:calc(100vh - 6.5rem);overflow-y:auto;
    padding-left:1.35rem;border-left:1px solid var(--line);font-size:.88rem}
}
.page-head{padding:.4rem 0 1.1rem;border-bottom:1px solid var(--line);margin-bottom:1.6rem}
h1{font-family:var(--serif);font-size:clamp(1.95rem,1.3rem + 2.6vw,3rem);line-height:1.13;letter-spacing:-.02em;
  color:var(--heading);margin:.1rem 0 .5rem;text-wrap:balance}
.dek{font-size:clamp(1.05rem,1rem + .5vw,1.25rem);color:var(--muted);margin:0 0 .8rem;max-width:62ch;line-height:1.55}
.page-meta{font-size:.83rem;color:var(--muted);margin:0;display:flex;flex-wrap:wrap;gap:.4rem;align-items:center}
.page-meta .dot{opacity:.5}
.page-body{max-width:none;min-width:0}
.page-body>p,.page-body>ul,.page-body>ol,.page-body>blockquote,
.page-body>h2,.page-body>h3,.page-body>h4,.page-body>hr,
.page-body>.callout,.page-body>.takeaways,.page-body>.quickfacts,
.page-body>.review-note,.page-body>.matrix-legend,.page-body>.table-note,
.page-body>.faq,.page-body>.sources,.page-body>.rank-list,.page-body>.who-eats{max-width:var(--measure)}
.faq-item,.src-list{max-width:var(--measure)}

h2,h3,h4{font-family:var(--serif);color:var(--heading);letter-spacing:-.015em;line-height:1.24;scroll-margin-top:5rem}
h2{font-size:clamp(1.45rem,1.2rem + 1.1vw,1.85rem);margin:2.6rem 0 .8rem}
h3{font-size:clamp(1.16rem,1.08rem + .5vw,1.35rem);margin:2rem 0 .55rem}
h4{font-size:1.03rem;margin:1.5rem 0 .4rem;font-family:var(--sans);font-weight:700}
.page-body>h2:first-child,.page-body>h3:first-child{margin-top:.3rem}
p{margin:0 0 1.05rem}
.page-body ul,.page-body ol{margin:0 0 1.2rem;padding-left:1.35rem}
.page-body li{margin-bottom:.42rem}
.page-body li>ul,.page-body li>ol{margin:.4rem 0 .1rem}
strong{color:var(--heading);font-weight:670}
hr{border:0;border-top:1px solid var(--line);margin:2.4rem 0}
code{font-family:var(--mono);font-size:.88em;background:var(--bg-alt);padding:.12em .35em;border-radius:5px}
pre{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius-sm);padding:.9rem 1rem;overflow:auto}
pre code{background:none;padding:0}
blockquote{margin:1.6rem 0;padding:.2rem 0 .2rem 1.15rem;border-left:3px solid var(--brand);color:var(--muted);
  font-family:var(--serif);font-size:1.08rem;font-style:italic}
.anchor{opacity:0;margin-left:.35rem;color:var(--line);text-decoration:none;font-weight:400;font-size:.75em}
h2:hover .anchor,h3:hover .anchor,h4:hover .anchor,.anchor:focus{opacity:1;color:var(--brand)}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;scroll-behavior:smooth;margin:1.4rem 0 1.7rem;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--surface);-webkit-overflow-scrolling:touch}
table{border-collapse:collapse;width:100%;font-size:.93rem;min-width:31rem}
th,td{padding:.62rem .8rem;text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top}
thead th{background:var(--bg-alt);font-family:var(--sans);font-size:.79rem;text-transform:uppercase;letter-spacing:.055em;
  color:var(--muted);font-weight:700;white-space:nowrap;position:sticky;top:0}
tbody th{font-weight:650;color:var(--heading)}
tbody tr:last-child th,tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:var(--bg-alt)}

/* ---------- callouts / boxes ---------- */
.callout{margin:1.6rem 0;padding:1rem 1.15rem;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:var(--surface);font-size:.98rem}
.callout>*:last-child{margin-bottom:0}
.callout-title{font-weight:700;color:var(--heading);margin:0 0 .4rem;font-size:.95rem;
  text-transform:uppercase;letter-spacing:.05em}
.callout-tip{background:var(--brand-soft);border-color:color-mix(in srgb,var(--brand) 26%,transparent)}
.callout-warn{background:var(--warn-soft);border-color:var(--warn-line)}
.callout-warn .callout-title{color:var(--warn)}
.callout-key{background:var(--key-soft);border-color:var(--key-line)}
.callout-key .callout-title{color:var(--key)}
.callout-data{background:var(--accent-soft);border-color:color-mix(in srgb,var(--accent) 30%,transparent)}
.callout-data .callout-title{color:var(--accent)}
.callout-quote{font-family:var(--serif);font-size:1.05rem;background:var(--bg-alt)}

.takeaways{background:var(--brand-soft);border:1px solid color-mix(in srgb,var(--brand) 24%,transparent);
  border-radius:var(--radius);padding:1.1rem 1.25rem;margin:0 0 1.9rem}
.takeaways h2{margin:0 0 .55rem;font-size:.82rem;font-family:var(--sans);text-transform:uppercase;
  letter-spacing:.09em;color:var(--brand-ink)}
.takeaways ul{margin:0;padding-left:1.15rem}
.takeaways li{margin-bottom:.45rem}
.takeaways li:last-child{margin-bottom:0}

.quickfacts{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);
  padding:1rem 1.15rem;margin:0 0 1.9rem;box-shadow:var(--shadow)}
.quickfacts h2{margin:0 0 .6rem;font-size:.82rem;font-family:var(--sans);text-transform:uppercase;letter-spacing:.09em;color:var(--muted)}
.quickfacts dl{margin:0;display:grid;gap:.1rem}
.qf-row{display:grid;grid-template-columns:1fr;gap:0;padding:.42rem 0;border-bottom:1px solid var(--line-soft)}
.qf-row:last-child{border-bottom:0;padding-bottom:0}
.qf-row dt{font-size:.79rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:650}
.qf-row dd{margin:0;font-size:.97rem}
@media (min-width:34rem){.qf-row{grid-template-columns:11rem 1fr;gap:1rem;align-items:baseline}}

.review-note{margin:2.6rem 0 0;padding:.95rem 1.1rem;border:1px dashed var(--line);border-radius:var(--radius-sm);
  font-size:.87rem;color:var(--muted);background:var(--bg-alt)}
.review-note p{margin:0}

/* ---------- faq / sources / related ---------- */
.faq{margin-top:2.8rem;border-top:1px solid var(--line);padding-top:.4rem}
.faq-item{padding:.15rem 0 .3rem;border-bottom:1px solid var(--line-soft)}
.faq-item:last-child{border-bottom:0}
.faq-item h3{font-size:1.09rem;margin:1.2rem 0 .45rem}
.sources{margin-top:2.6rem;font-size:.92rem}
.src-list{padding-left:1.3rem;color:var(--muted)}
.src-list li{margin-bottom:.55rem}
.src-pub{color:var(--muted)}
.src-pub::before{content:" — "}
.src-note{display:block;font-size:.86rem;color:var(--muted)}
.related{margin-top:3rem;padding-top:1.6rem;border-top:1px solid var(--line)}
.related h2{margin-top:0}

/* ---------- cards ---------- */
.cards{display:grid;gap:.85rem;grid-template-columns:1fr;margin:1.5rem 0 2rem}
@media (min-width:38rem){.cards{grid-template-columns:repeat(2,1fr)}}
@media (min-width:70rem){.cards{grid-template-columns:repeat(3,1fr)}.cards-hub{grid-template-columns:repeat(3,1fr)}}
.card{display:flex;flex-direction:column;gap:.3rem;padding:1rem 1.05rem;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;color:var(--text);
  transition:border-color .15s,transform .15s,box-shadow .15s}
.card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow);color:var(--text)}
.card-head{display:flex;align-items:center;gap:.4rem;color:var(--brand)}
.card-ico{width:1.05rem;height:1.05rem}
.card-tag{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;font-weight:700;color:var(--muted)}
.card-title{font-family:var(--serif);font-size:1.12rem;font-weight:700;color:var(--heading);line-height:1.25}
.card-desc{font-size:.89rem;color:var(--muted);line-height:1.5}
.link-list{list-style:none;padding:0;margin:1.2rem 0 1.8rem;border-top:1px solid var(--line-soft)}
.link-list li{padding:.65rem 0;border-bottom:1px solid var(--line-soft);margin:0}
.link-list a{font-weight:640}
.li-desc{display:block;font-size:.87rem;color:var(--muted);line-height:1.5}

/* ---------- toc / side ---------- */
.toc{font-size:.87rem}
.toc-h{font-size:.75rem!important;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);
  font-family:var(--sans)!important;margin:0 0 .55rem!important;font-weight:700}
.toc ul,.side-cluster ul{list-style:none;margin:0;padding:0}
.toc li{margin-bottom:.06rem}
.toc a,.side-cluster a{display:block;padding:.28rem .5rem;border-radius:6px;color:var(--muted);text-decoration:none;line-height:1.4}
.toc a:hover,.side-cluster a:hover{background:var(--bg-alt);color:var(--brand)}
.toc a.active{color:var(--brand);background:var(--brand-soft);font-weight:640}
.toc-3 a{padding-left:1.25rem;font-size:.95em}
.side-cluster{margin-top:2rem;padding-top:1.2rem;border-top:1px solid var(--line)}
.side-more{margin:.5rem 0 0;padding-left:.5rem;font-size:.85rem}
@media (max-width:63.99rem){
  .toc{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius-sm);padding:.85rem 1rem;margin:0 0 1.8rem}
  .toc ul{columns:2;column-gap:1rem}
  .toc li{break-inside:avoid}
  .side-cluster{display:none}
  .layout{display:flex;flex-direction:column}
  .page-head{order:-2}.side{order:-1}
}

/* ---------- home ---------- */
.hero{padding:2.4rem 0 1.2rem;border-bottom:1px solid var(--line);margin-bottom:2rem}
.hero h1{margin-bottom:.7rem}
.hero-sub{font-size:clamp(1.06rem,1rem + .6vw,1.3rem);color:var(--muted);max-width:60ch;margin:0 0 1.4rem;line-height:1.55}
.hero-actions{display:flex;flex-wrap:wrap;gap:.6rem}
.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.68rem 1.15rem;border-radius:9px;font-weight:650;
  font-size:.95rem;text-decoration:none;border:1px solid var(--brand);background:var(--brand);color:#fff;cursor:pointer}
.btn:hover{background:var(--brand-ink);border-color:var(--brand-ink);color:#fff}
.btn-ghost{background:none;color:var(--brand);border-color:var(--line)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-ink);border-color:var(--brand)}
@media (prefers-color-scheme:dark){.btn{color:#0f1614}.btn:hover{color:#0f1614}.btn-ghost{color:var(--brand)}.btn-ghost:hover{color:var(--brand-ink)}}
.stat-row{display:grid;grid-template-columns:repeat(2,1fr);gap:.8rem;margin:1.8rem 0 2.2rem}
@media (min-width:46rem){.stat-row{grid-template-columns:repeat(4,1fr)}}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:.9rem 1rem}
.stat-n{display:block;font-family:var(--serif);font-size:1.7rem;font-weight:700;color:var(--brand);line-height:1.1}
.stat-l{display:block;font-size:.83rem;color:var(--muted);margin-top:.2rem}
.home-section{margin:2.8rem 0}
.home-section>h2{margin-top:0}
.tree{display:grid;gap:1.4rem;grid-template-columns:1fr;margin:1.5rem 0}
@media (min-width:44rem){.tree{grid-template-columns:repeat(2,1fr)}}
@media (min-width:72rem){.tree{grid-template-columns:repeat(3,1fr)}}
.tree-block h3{margin:0 0 .5rem;font-size:1.05rem}
.tree-list{list-style:none;margin:0;padding:0;font-size:.92rem}
.tree-list li{padding:.22rem 0;margin:0}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--line);background:var(--bg-alt);padding:2.4rem 0 2rem;margin-top:3rem;font-size:.9rem}
.foot-grid{display:grid;gap:1.4rem;grid-template-columns:repeat(2,1fr)}
@media (min-width:52rem){.foot-grid{grid-template-columns:repeat(5,1fr)}}
.fcol h3{margin:0 0 .5rem;font-size:.82rem;font-family:var(--sans);text-transform:uppercase;letter-spacing:.07em;color:var(--muted)}
.fcol h3 a{color:var(--heading);text-decoration:none}
.fcol ul{list-style:none;margin:0;padding:0}
.fcol li{margin-bottom:.3rem;line-height:1.4}
.fcol a{color:var(--muted);text-decoration:none;font-size:.87rem}
.fcol a:hover{color:var(--brand);text-decoration:underline}
.foot-bar{margin-top:2rem;padding-top:1.3rem;border-top:1px solid var(--line)}
.foot-brand{font-family:var(--serif);font-weight:700;color:var(--heading);margin:0 0 .5rem}
.foot-links{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem 1rem;margin:0 0 .9rem;padding:0}
.foot-links a{color:var(--muted);font-size:.87rem}
.foot-note{color:var(--muted);font-size:.82rem;margin:.3rem 0;max-width:75ch;line-height:1.55}

/* ---------- tools ---------- */
.tool{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.15rem 1.2rem;
  margin:1.6rem 0 2rem;box-shadow:var(--shadow)}
.tool h2,.tool h3{margin-top:0}
.tool-grid{display:grid;gap:.9rem 1.1rem;grid-template-columns:1fr}
@media (min-width:34rem){.tool-grid{grid-template-columns:repeat(2,1fr)}}
.field{display:flex;flex-direction:column;gap:.3rem}
.field label{font-size:.85rem;font-weight:650;color:var(--heading)}
.field .hint{font-size:.79rem;color:var(--muted);line-height:1.4}
input[type=number],input[type=text],select{width:100%;padding:.55rem .65rem;border:1px solid var(--line);
  border-radius:8px;background:var(--bg);color:var(--text);font:inherit;font-size:.95rem}
input[type=range]{width:100%;accent-color:var(--brand)}
fieldset{border:1px solid var(--line);border-radius:var(--radius-sm);padding:.8rem .9rem;margin:0 0 1rem}
legend{font-size:.85rem;font-weight:700;color:var(--heading);padding:0 .35rem}
.choices{display:flex;flex-wrap:wrap;gap:.45rem}
.choice{display:inline-flex;align-items:center;gap:.4rem;padding:.42rem .7rem;border:1px solid var(--line);
  border-radius:999px;font-size:.88rem;cursor:pointer;background:var(--bg)}
.choice input{accent-color:var(--brand);margin:0}
.choice:has(input:checked){border-color:var(--brand);background:var(--brand-soft);color:var(--brand-ink);font-weight:600}
.tool-out{margin-top:1.2rem;padding-top:1rem;border-top:1px solid var(--line)}
.result-big{font-family:var(--serif);font-size:clamp(1.4rem,1.2rem + 1.2vw,2rem);color:var(--brand);
  font-weight:700;line-height:1.2;margin:0 0 .4rem}
.result-note{font-size:.9rem;color:var(--muted);margin:0}
.result-list{list-style:none;padding:0;margin:.9rem 0 0}
.result-list li{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;padding:.55rem 0;border-bottom:1px solid var(--line-soft);margin:0}
.result-list li>span:first-child{flex:1 1 auto;min-width:0}
.result-list li:last-child{border-bottom:0}
.result-list .rl-v{font-weight:650;color:var(--heading);white-space:nowrap}
.bar{display:block;width:100%;height:.5rem;border-radius:999px;background:var(--bg-alt);overflow:hidden;margin-top:.4rem}
.bar>span{display:block;height:100%;background:var(--brand);border-radius:999px}
.badge{display:inline-block;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;
  padding:.18rem .5rem;border-radius:999px;background:var(--brand-soft);color:var(--brand-ink);vertical-align:middle}
.badge-warn{background:var(--warn-soft);color:var(--warn)}
.pick{border:1px solid var(--line);border-radius:var(--radius-sm);padding:.85rem 1rem;margin-bottom:.7rem;background:var(--bg)}
.pick h4{margin:0 0 .25rem}
.pick p{margin:0;font-size:.92rem;color:var(--muted)}
.pick-top{border-color:var(--brand);background:var(--brand-soft)}
.figure{margin:1.8rem 0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:1rem}
.figure svg{display:block;width:100%;height:auto}
.figure figcaption{font-size:.85rem;color:var(--muted);margin-top:.7rem;line-height:1.5}
.search-page-results{margin-top:1.5rem}
@media print{.site-head,.site-foot,.side,.related,.nav-search{display:none}body{font-size:11pt}}

/* ---------- preference matrix ---------- */
.matrix{font-size:.84rem;min-width:56rem}
.matrix .m-sp{position:sticky;left:0;background:var(--surface);z-index:2;min-width:12.5rem;
  box-shadow:1px 0 0 var(--line-soft)}
.matrix thead .m-sp{background:var(--bg-alt);z-index:3}
.matrix .m-h span{display:block;font-size:.72rem;line-height:1.2;white-space:normal;min-width:4.1rem}
.matrix td{text-align:center;padding:.35rem .3rem}
span.m{display:inline-block;min-width:2.7rem;padding:.16rem .35rem;border-radius:5px;font-size:.71rem;
  font-weight:700;text-transform:uppercase;letter-spacing:.03em;text-align:center;line-height:1.5}
.matrix td.m{padding:.3rem .25rem;text-align:center}
.matrix td.m span[aria-hidden]{display:inline-block;min-width:2.7rem;padding:.16rem .3rem;border-radius:5px;
  font-size:.71rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;line-height:1.5}
.m4,.m4 span[aria-hidden]{background:#1d5138;color:#fff}
.m3,.m3 span[aria-hidden]{background:#6fae8b;color:#0e2118}
.m2,.m2 span[aria-hidden]{background:#d9e6dc;color:#31463a}
.m1,.m1 span[aria-hidden]{background:var(--bg-alt);color:var(--muted)}
.m0,.m0 span[aria-hidden]{background:transparent;color:var(--muted);font-weight:500}
@media (prefers-color-scheme:dark){
  .m4,.m4 span[aria-hidden]{background:#2f7a55;color:#eaf6ef}
  .m3,.m3 span[aria-hidden]{background:#2b5540;color:#cfe8da}
  .m2,.m2 span[aria-hidden]{background:#26312c;color:#a9c4b6}
  .m0,.m0 span[aria-hidden]{color:var(--muted)}
}
.matrix-legend{font-size:.82rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:.3rem .55rem;align-items:center;margin:-.7rem 0 1.6rem}
.table-note{font-size:.85rem;color:var(--muted);margin:-.9rem 0 1.7rem;line-height:1.55}
.stars{letter-spacing:.12em;color:var(--brand);font-size:.8rem}
.stars .off{color:var(--line)}
.rank-list{padding-left:1.3rem}
.rank-list li{margin-bottom:.35rem}
.who-eats{list-style:none;padding:0;margin:1.2rem 0 1.6rem}
.who-eats li{padding:.6rem 0;border-bottom:1px solid var(--line-soft);line-height:1.6}
.who-eats li:last-child{border-bottom:0}

/* ---------- home layout ---------- */
.home .page-head{border-bottom:0;padding:1.4rem 0 .6rem;margin-bottom:.6rem}
.home .page-head h1{font-size:clamp(2.1rem,1.4rem + 3.1vw,3.4rem);max-width:20ch}
.home .dek{font-size:clamp(1.1rem,1rem + .7vw,1.35rem);color:var(--muted);max-width:58ch}
.home .page-body{max-width:none}
.home h2{border-top:1px solid var(--line);padding-top:1.6rem;margin-top:2.8rem}
.home .page-body>p:first-of-type{max-width:var(--measure)}

/* ---------- refinements ---------- */
fieldset{position:relative}
legend{background:var(--surface);border-radius:5px;line-height:1.35}
#selector-form,#matcher-tool .tool-grid{grid-template-columns:1fr}
#matcher-tool fieldset{margin-bottom:0}
.tool .choices{gap:.5rem}
@media (max-width:44rem){
  .matrix{font-size:.78rem;min-width:47rem}
  .matrix .m-sp{min-width:8.4rem;padding-inline:.5rem}
  .matrix td.m span[aria-hidden]{min-width:2.2rem;padding:.13rem .18rem;font-size:.65rem}
  .matrix .m-h span{min-width:3.3rem;font-size:.67rem}
}
.table-wrap{background-image:linear-gradient(to left,var(--surface),rgba(255,255,255,0)),
  radial-gradient(farthest-side at 100% 50%,rgba(20,30,25,.13),rgba(255,255,255,0));
  background-position:100% 0,100% 0;background-repeat:no-repeat;
  background-size:30px 100%,12px 100%;background-attachment:local,scroll}
@media (prefers-color-scheme:dark){
  .table-wrap{background-image:linear-gradient(to left,var(--surface),rgba(0,0,0,0)),
    radial-gradient(farthest-side at 100% 50%,rgba(0,0,0,.5),rgba(0,0,0,0))}
}
.figure svg{max-height:22rem}
.page-body>.tool,.page-body>.figure{max-width:52rem}

.table-wrap:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* ---------- charts and diagrams ---------- */
:root{--chart-bar:#1d5138;--dg-safe:#e6efe8;--dg-danger:#fbf0e2;--dg-fill:#f2ede2}
@media (prefers-color-scheme:dark){:root{--chart-bar:#6fae8b;--dg-safe:#1a2a23;--dg-danger:#241b12;--dg-fill:#1e2724}}
.figure.chart,.figure.diagram{margin:1.8rem 0}
.chart-bar{fill:var(--chart-bar)}
.chart-axis{stroke:var(--line);stroke-width:1}
.chart-label{fill:var(--muted);font:600 13px/1 var(--sans)}
.chart-value{fill:var(--heading);font:700 13px/1 var(--sans);font-variant-numeric:tabular-nums}
.dg-label{fill:var(--heading);font:600 13px/1 var(--sans)}
.dg-lead,.dg-small{fill:var(--muted);font:400 12px/1 var(--sans)}
.dg-dim-text{opacity:.85}
.dg-zone{fill:var(--brand-ink);font:700 12px/1 var(--sans);letter-spacing:.06em}
.dg-zone-danger{fill:var(--warn)}
.dg-wall,.dg-box{fill:var(--dg-fill);stroke:var(--line);stroke-width:1.5}
.dg-glass{stroke:var(--brand);stroke-width:1.5;opacity:.85}
.dg-hatch{stroke:var(--brand);stroke-width:1;opacity:.5}
.dg-safe{fill:var(--dg-safe);stroke:none}
.dg-danger{fill:var(--dg-danger);stroke:none}
.dg-zone-c{fill:none;stroke:var(--line);stroke-width:1.5}
.dg-c1{fill:var(--dg-danger);opacity:.55}
.dg-c2{stroke-dasharray:5 4}
.dg-feeder,.dg-perch,.dg-branch{fill:none;stroke:var(--heading);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.dg-branch{stroke:var(--muted)}
.dg-ground,.dg-pole{stroke:var(--muted);stroke-width:2.5;stroke-linecap:round}
.dg-baffle{fill:none;stroke:var(--chart-bar);stroke-width:3}
.dg-dim{stroke:var(--muted);stroke-width:1.2;stroke-dasharray:5 4}
.dg-tick{stroke:var(--muted);stroke-width:1.5}
.dg-tube{fill:none;stroke:var(--heading);stroke-width:2}
.dg-seed{stroke:var(--chart-bar);opacity:.28;stroke-linecap:round}
.dg-port{fill:var(--bg);stroke:var(--heading);stroke-width:2}
.dg-seedmark{fill:var(--chart-bar);opacity:.85}
.card-ico{width:1.45rem;height:1.45rem;padding:.22rem;border-radius:7px;background:var(--brand-soft);
  color:var(--brand);box-sizing:content-box}
.cards-hub .card-title{font-size:1.18rem}