:root{--teal:#08666B;--teal-d:#04393D;--cream:#FFF8E9;--paper:#FFFDF7;--ink:#1B2B2C;--muted:#4F6364;--ochre:#8A5412;--ochre-bg:#F6E7C6;--line:#E3D8BF;--sage:#E4EFEB;--r:12px;--max:1120px;--read:72ch}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--cream);color:var(--ink);font:1rem/1.7 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}
img,svg{max-width:100%;height:auto}
a{color:var(--teal);text-underline-offset:3px}a:hover{color:var(--teal-d)}
:focus-visible{outline:3px solid #0C7E84;outline-offset:2px;border-radius:4px}
.skip{position:absolute;left:-9999px;top:8px;background:var(--teal-d);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}.skip:focus{left:12px}
.wrap{width:min(var(--max),calc(100% - 32px));margin:0 auto}
h1,h2,h3{font-family:Georgia,"Iowan Old Style","Times New Roman",serif;color:var(--teal-d);line-height:1.2;margin:0 0 .6em}
h1{font-size:clamp(1.9rem,4.6vw,3rem);letter-spacing:-.01em}h2{font-size:clamp(1.4rem,3vw,1.9rem);margin-top:2.2em}h3{font-size:1.15rem;margin-top:1.6em}
p{margin:0 0 1em}
.kicker{font:700 .78rem/1 system-ui,sans-serif;letter-spacing:.12em;text-transform:uppercase;color:var(--ochre);margin-bottom:.9rem}
.lead{font-size:1.14rem;color:var(--muted);max-width:var(--read)}.muted{color:var(--muted)}.small{font-size:.88rem}
.top{background:var(--teal-d);color:#d7e6e3;font-size:.84rem}.top .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:7px 0;align-items:center}.top a{color:#d7e6e3}
.lang{display:flex;gap:4px}.lang a{padding:2px 8px;border-radius:6px;text-decoration:none;font-weight:600}.lang a[aria-current]{background:#fff;color:var(--teal-d)}
header.site{background:var(--paper);border-bottom:1px solid var(--line)}header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--teal-d);font:700 1.1rem Georgia,serif}.brand img{width:38px;height:38px}
nav.main ul{display:flex;gap:6px 22px;list-style:none;margin:0;padding:0;flex-wrap:wrap}
nav.main a{display:block;padding:8px 2px;text-decoration:none;color:var(--ink);font-weight:600;white-space:nowrap;border-bottom:2px solid transparent}
nav.main a:hover,nav.main a[aria-current]{border-color:var(--ochre);color:var(--teal-d)}
.menu-btn{display:none;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:9px 14px;font-weight:600;font-size:.95rem;font-family:inherit;color:var(--teal-d);cursor:pointer}
@media(max-width:900px){.menu-btn{display:inline-block}nav.main{width:100%}nav.main ul{display:none;flex-direction:column;gap:0;padding:6px 0 4px;border-top:1px solid var(--line)}nav.main ul.open{display:flex}nav.main a{padding:12px 0;border-bottom:1px solid var(--line)}}
main{display:block;padding-bottom:40px}.page-head{padding:34px 0 10px}
.crumbs{font-size:.86rem;color:var(--muted);margin-bottom:18px}.crumbs a{color:var(--muted)}
.prose{max-width:var(--read)}.prose ul,.prose ol{padding-left:1.2em}.prose li{margin-bottom:.5em}
.meta{font-size:.86rem;color:var(--muted);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:8px 0;margin:18px 0 26px;max-width:var(--read)}
.grid{display:grid;gap:18px}@media(min-width:760px){.g2{grid-template-columns:1fr 1fr}.g3{grid-template-columns:repeat(3,1fr)}}
.panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:22px 24px}.panel h2,.panel h3{margin-top:0}
.silo{display:block;text-decoration:none;color:inherit;background:var(--paper);border:1px solid var(--line);border-top:4px solid var(--teal);border-radius:var(--r);padding:20px 22px}
.silo:hover{border-top-color:var(--ochre);background:#fff}.silo h3{margin:0 0 .4em}.silo p{margin:0;color:var(--muted);font-size:.95rem}.silo .go{display:inline-block;margin-top:.8em;font-weight:700;color:var(--teal)}
.btn{display:inline-block;background:var(--teal);color:#fff;text-decoration:none;font-weight:700;padding:12px 20px;border-radius:10px;border:2px solid var(--teal)}.btn:hover{background:var(--teal-d);border-color:var(--teal-d);color:#fff}
.btn.alt{background:transparent;color:var(--teal)}.btn.alt:hover{background:var(--sage);color:var(--teal-d)}
.row{display:flex;gap:12px;flex-wrap:wrap;margin:1.2em 0}
.note{background:var(--ochre-bg);border-left:4px solid var(--ochre);border-radius:8px;padding:14px 18px;margin:1.4em 0;font-size:.95rem;max-width:var(--read)}.note.plain{background:var(--sage);border-color:var(--teal)}
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--paper);margin:1.2em 0}
table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:620px}caption{text-align:left;padding:12px 14px;font-weight:700;color:var(--teal-d)}
th{text-align:left;background:var(--sage);color:var(--teal-d);padding:10px 14px;font-size:.82rem}td{padding:10px 14px;border-top:1px solid var(--line);vertical-align:top}tbody tr:hover{background:#fffaf0}
.badge{display:inline-block;font-size:.76rem;font-weight:700;padding:2px 9px;border-radius:999px;background:var(--sage);color:var(--teal-d)}.badge.warn{background:var(--ochre-bg);color:var(--ochre)}
.decision td:first-child{font-weight:700;color:var(--teal-d);width:26%}
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:end;margin:1em 0}.filters label{font-size:.85rem;font-weight:700;color:var(--teal-d);display:block;margin-bottom:4px}
select,input[type=text],input[type=number]{font:inherit;padding:9px 11px;border:1px solid #bfb393;border-radius:8px;background:#fff;color:var(--ink);min-width:0}
.calc{display:grid;gap:20px}@media(min-width:900px){.calc{grid-template-columns:1.15fr .85fr;align-items:start}}
.fg{margin-bottom:20px}.fg h3{margin:0 0 10px;font-size:1rem}.fields{display:grid;gap:12px}@media(min-width:520px){.fields{grid-template-columns:1fr 1fr}}
.fields label{font-size:.86rem;font-weight:600;display:block;margin-bottom:4px}.fields input{width:100%}
.result{background:var(--teal-d);color:#fff;border-radius:var(--r);padding:22px 24px}@media(min-width:900px){.result{position:sticky;top:12px}}
.result h2,.result h3{color:#fff;margin:0 0 .3em}.result .big{font:700 2.3rem Georgia,serif;margin:.1em 0}
.result dl{margin:14px 0 0;display:grid;gap:8px}.result dl div{display:flex;justify-content:space-between;gap:10px;border-top:1px solid rgba(255,255,255,.18);padding-top:8px;font-size:.92rem}
.result dt{opacity:.85}.result dd{margin:0;font-weight:700;text-align:right}.result p{font-size:.85rem;opacity:.85;margin:14px 0 0}
footer.site{background:var(--teal-d);color:#d7e6e3;margin-top:40px;padding:34px 0 22px}footer.site a{color:#e8f3f0}
footer.site h2{font:700 .8rem system-ui;letter-spacing:.1em;text-transform:uppercase;color:#f1d9a6;margin:0 0 10px}
footer.site ul{list-style:none;margin:0;padding:0}footer.site li{margin-bottom:6px}
.fgrid{display:grid;gap:24px}@media(min-width:760px){.fgrid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.fsmall{border-top:1px solid rgba(255,255,255,.18);margin-top:24px;padding-top:14px;font-size:.84rem}
details{background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin-bottom:10px;max-width:var(--read)}summary{cursor:pointer;font-weight:700;color:var(--teal-d)}details p{margin:.7em 0 0}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{.top,header.site,footer.site,.menu-btn{display:none}}