:root{--ink:#102A3C;--ink-2:#3A5566;--mist:#F2F6F8;--line:#D9E3E8;--paper:#fff;--green:#1F8A70;--green-2:#E4F3EE;--amber:#C77C02;--amber-2:#FBF1DC;--red:#C03F3B;--red-2:#F9E4E3;--blue:#2E6F9E;--blue-2:#E3EEF6;--max:1080px;--r:10px;--font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font:16px/1.65 var(--font);color:var(--ink);background:var(--paper)}
a{color:var(--blue)}a:hover{color:var(--ink)}
img,svg{max-width:100%;height:auto}
h1,h2,h3{line-height:1.2;letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;margin-top:.9em}.crumbs+h1{margin-top:.3em}h2{font-size:1.5rem;font-weight:750;margin-top:2.2em}h3{font-size:1.15rem;margin-top:1.6em}
p,ul,ol{margin:0 0 1.1em}li{margin-bottom:.35em}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:.5rem 1rem;border-radius:6px}.skip:focus{left:8px;z-index:9}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line);background:var(--paper)}
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px}
.logo{font-weight:800;font-size:1.2rem;color:var(--ink);text-decoration:none;letter-spacing:-.02em}.logo b{color:var(--green)}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;gap:2px;flex-wrap:wrap}
nav.main a{display:block;padding:8px 10px;color:var(--ink-2);text-decoration:none;font-weight:600;font-size:.93rem;border-radius:6px}
nav.main a:hover,nav.main a[aria-current]{background:var(--mist);color:var(--ink)}
.crumbs{font-size:.85rem;color:var(--ink-2);margin:14px 0 6px}.crumbs ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px}.crumbs li+li:before{content:"›";margin-right:6px;color:#9ab}
.crumbs a{color:var(--ink-2);text-decoration:none}.crumbs a:hover{text-decoration:underline}
main{padding-bottom:3rem}
.lead{font-size:1.12rem;color:var(--ink-2);max-width:70ch}
.hero{display:grid;grid-template-columns:1fr;gap:24px;margin:16px 0 8px}
@media(min-width:880px){.hero{grid-template-columns:5fr 4fr;align-items:start}}
.calc{background:var(--mist);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.calc h2{margin:0 0 14px;font-size:1.2rem}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:12px}
label{display:block;font-size:.85rem;font-weight:700;color:var(--ink-2);margin-bottom:4px}
input,select{width:100%;font:inherit;font-size:1.05rem;padding:10px 12px;border:1px solid #B9C8D0;border-radius:8px;background:#fff;color:var(--ink)}
input:focus,select:focus,button:focus,a:focus{outline:3px solid #8FC9E8;outline-offset:1px}
.seg{display:flex;gap:6px}.seg label{flex:1;margin:0;cursor:pointer;background:#fff;border:1px solid #B9C8D0;border-radius:8px;text-align:center;padding:10px;font-weight:700;color:var(--ink-2)}
.seg input{position:absolute;opacity:0;width:0;height:0}.seg input:checked+span{color:var(--green)}.seg label:has(input:checked){border-color:var(--green);background:var(--green-2);color:var(--green)}
.btn{display:inline-block;font:inherit;font-weight:700;background:#1B7A62;color:#fff;border:0;border-radius:8px;padding:12px 20px;cursor:pointer;text-decoration:none}.btn:hover{background:#176c57;color:#fff}
.res{border:1px solid var(--line);border-radius:var(--r);padding:20px;min-height:180px}
.res .num{font-size:3.2rem;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.03em}
.res .cat{font-weight:700;font-size:1.15rem;margin:6px 0 10px;display:inline-block;padding:2px 10px;border-radius:6px}
.c-low{background:var(--blue-2);color:var(--blue)}.c-ok{background:var(--green-2);color:var(--green)}.c-over{background:var(--amber-2);color:var(--amber)}.c-ob{background:var(--red-2);color:var(--red)}
.scale{position:relative;height:14px;border-radius:7px;margin:14px 0 26px;background:linear-gradient(90deg,var(--blue) 0 21%,var(--green) 21% 48.5%,var(--amber) 48.5% 70%,var(--red) 70%)}
.scale i{position:absolute;top:-5px;width:4px;height:24px;background:var(--ink);border-radius:2px;transform:translateX(-50%);transition:left .3s}
.scale u{position:absolute;top:18px;font-size:.72rem;color:var(--ink-2);text-decoration:none;transform:translateX(-50%)}
.res small{color:var(--ink-2)}
.res .empty{color:var(--ink-2)}
table{border-collapse:collapse;width:100%;margin:0 0 1.4em;font-size:.95rem}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}th{background:var(--mist);font-weight:700}
.tbl{overflow-x:auto}
.box{border-left:4px solid var(--green);background:var(--green-2);padding:14px 16px;border-radius:0 8px 8px 0;margin:1.4em 0}
.note{border-left:4px solid var(--amber);background:var(--amber-2);padding:14px 16px;border-radius:0 8px 8px 0;margin:1.4em 0}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:1em 0 1.6em}
.card{border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;text-decoration:none;color:var(--ink);display:block}
.card:hover{border-color:var(--green);background:var(--mist)}.card b{display:block;margin-bottom:4px}.card span{font-size:.9rem;color:var(--ink-2)}
.aff{border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;margin:1.8em 0;background:#FCFDFD}
.aff h3{margin-top:0}.aff .grid{margin-bottom:.6em}.aff .card{background:#fff}.aff .card b:after{content:" →";color:var(--green)}
.disc{font-size:.8rem;color:var(--ink-2)}
.faq details{border-bottom:1px solid var(--line);padding:10px 0}.faq summary{font-weight:700;cursor:pointer;padding:4px 0}.faq summary::marker{color:var(--green)}
.cols{columns:2;column-gap:32px}.cols ul{break-inside:avoid}@media(max-width:700px){.cols{columns:1}}
.hub h3{margin-top:1.4em;font-size:1.05rem}.hub ul{list-style:none;padding:0;margin:0 0 1em}.hub li{padding:4px 0;border-bottom:1px dashed var(--line)}
.toc{background:var(--mist);border-radius:8px;padding:12px 18px;margin:1em 0 1.6em;font-size:.93rem}.toc ul{margin:0;padding-left:18px}
footer{border-top:1px solid var(--line);background:var(--mist);padding:36px 0 28px;font-size:.9rem;color:var(--ink-2)}
footer .fg{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}footer ul{list-style:none;padding:0;margin:0}footer li{margin:0 0 6px}footer a{color:var(--ink-2);text-decoration:none}footer a:hover{color:var(--ink);text-decoration:underline}
footer h3{margin:0 0 10px;color:var(--ink);font-size:.95rem;line-height:1.65;letter-spacing:normal}.legal{margin-top:24px;padding-top:16px;border-top:1px solid var(--line);font-size:.82rem}
@media(prefers-reduced-motion:reduce){.scale i{transition:none}html{scroll-behavior:auto}}
@media(max-width:560px){.row{grid-template-columns:1fr}.res .num{font-size:2.6rem}nav.main a{padding:7px 8px;font-size:.88rem}}