:root{--ink:#14213d;--body:#33405a;--muted:#667085;--line:#e4e7ec;--bg:#f7f8fa;--card:#fff;--brand:#0f766e;--brand-d:#0b5c56;--ok:#15803d;--okbg:#ecfdf3;--warn:#b45309;--warnbg:#fffaeb;--bad:#b42318;--badbg:#fef3f2;--info:#475467;--infobg:#f2f4f7;--r:12px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--body);background:var(--bg)}
a{color:var(--brand)}a:hover{color:var(--brand-d)}
h1,h2,h3,h4{color:var(--ink);line-height:1.25;margin:0 0 .5em}
h1{font-size:clamp(1.7rem,5vw,2.5rem)}h2{font-size:clamp(1.3rem,3.5vw,1.7rem);margin-top:1.4em}h3{font-size:1.1rem}
code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;background:#eef2f6;padding:.1em .35em;border-radius:5px;word-break:break-all}
pre{white-space:pre-wrap;word-break:break-all;background:#0f172a;color:#e2e8f0;padding:12px;border-radius:8px;font-size:.85rem;margin:.5em 0 0}
.wrap{max-width:960px;margin:0 auto;padding:0 18px}.narrow{max-width:740px}
.site-head{background:#fff;border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px;flex-wrap:wrap}
.logo{font-weight:800;color:var(--ink);text-decoration:none;font-size:1.1rem;display:flex;align-items:center;gap:8px}
.logo img{width:28px;height:28px}
nav a{margin-left:16px;text-decoration:none;color:var(--body);font-weight:500}nav a:first-child{margin-left:0}nav a[aria-current]{color:var(--brand)}
main{padding:28px 0 56px}
.hero{padding:16px 0 8px}.hero p.lead{font-size:1.1rem;max-width:640px}
.checker{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;box-shadow:0 1px 2px rgba(16,24,40,.05);margin:18px 0}
.checker form{display:flex;gap:10px;flex-wrap:wrap}
input,select{font:inherit;padding:12px 14px;border:1px solid #cfd4dc;border-radius:10px;width:100%;background:#fff;color:var(--ink)}
input:focus,select:focus{outline:3px solid #99f6e4;border-color:var(--brand)}
#domain{flex:1 1 260px;width:auto;font-size:1.05rem}
.btn{font:inherit;font-weight:700;background:var(--brand);color:#fff;border:0;border-radius:10px;padding:12px 20px;cursor:pointer;text-decoration:none;display:inline-block}
.btn:hover{background:var(--brand-d);color:#fff}.btn:disabled{opacity:.6;cursor:wait}
.muted{color:var(--muted)}.small{font-size:.875rem}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin:22px 0}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px}
.stat b{display:block;font-size:1.8rem;color:var(--ink);line-height:1.1}
.why{background:#f0fdfa;border:1px solid #ccfbf1;border-radius:var(--r);padding:14px 16px;margin:18px 0}
.score-head{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin:8px 0 14px}.score-head h2{margin:0 0 .2em}
.gauge{width:150px;text-align:center;position:relative}.gauge svg{width:150px;height:88px}
.gauge path{fill:none;stroke-width:12;stroke-linecap:round}.gauge .track{stroke:#e4e7ec}
.gauge .bar{transition:stroke-dashoffset .8s ease}.gauge.good .bar{stroke:var(--ok)}.gauge.fair .bar{stroke:#d97706}.gauge.poor .bar{stroke:var(--bad)}
.gnum{position:absolute;top:40px;left:0;right:0;font-weight:700;color:var(--muted)}.gnum span{font-size:2rem;color:var(--ink)}
.glabel{font-weight:600;margin-top:2px}
.cards{display:grid;gap:12px}
.rcard{background:var(--card);border:1px solid var(--line);border-left:5px solid var(--info);border-radius:var(--r);padding:14px 16px}
.rcard.ok{border-left-color:var(--ok)}.rcard.warn{border-left-color:#d97706}.rcard.bad{border-left-color:var(--bad)}
.rcard header{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.rcard h3{margin:0}.pts{margin-left:auto;font-weight:700;color:var(--ink)}
.pill{font-size:.75rem;font-weight:700;padding:2px 9px;border-radius:99px}
.pill.ok{background:var(--okbg);color:var(--ok)}.pill.warn{background:var(--warnbg);color:var(--warn)}.pill.bad{background:var(--badbg);color:var(--bad)}.pill.info{background:var(--infobg);color:var(--info)}
.rcard .summary{font-weight:600;color:var(--ink);margin:.5em 0 .3em}.rcard p{margin:.35em 0}
.notes{margin:.4em 0;padding-left:1.2em;font-size:.95rem}
.fix{background:#f9fafb;border-radius:8px;padding:10px 14px;margin-top:10px}.fix h4{margin:0 0 .3em;font-size:.95rem}.fix ol,.fix ul{margin:.2em 0;padding-left:1.2em}.fix li{margin:.3em 0}
details summary{cursor:pointer;color:var(--brand);font-weight:600;margin-top:8px}
.optin{background:var(--card);border:2px solid var(--brand);border-radius:var(--r);padding:18px;margin:22px 0}
.optin h2{margin-top:0;font-size:1.25rem}.grid2{display:grid;gap:12px}@media(min-width:640px){.grid2{grid-template-columns:1fr 1fr}}
label{font-weight:600;color:var(--ink);font-size:.95rem;display:block}label input,label select{margin-top:4px;font-weight:400}
.consent{display:flex;gap:10px;align-items:flex-start;font-weight:400;margin:14px 0 6px}.consent input{width:20px;height:20px;margin-top:3px;flex:none}
.hp{position:absolute;left:-9999px}
.form-msg{min-height:1.4em;margin:.5em 0 0}.error{color:var(--bad)}.loading{color:var(--muted)}
.success{background:var(--okbg);border:1px solid #abefc6;border-radius:var(--r);padding:14px 16px}
.guide-list{display:grid;gap:12px;padding:0;list-style:none}.guide-list li{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.guide-list a{font-weight:700;font-size:1.05rem;text-decoration:none}
article.prose{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px clamp(16px,4vw,34px)}
.prose li{margin:.35em 0}.prose table{border-collapse:collapse;width:100%;font-size:.95rem;margin:1em 0}.prose th,.prose td{border:1px solid var(--line);padding:8px;text-align:left;vertical-align:top}
.cta{background:#f0fdfa;border:1px solid #99f6e4;border-radius:var(--r);padding:18px;margin:26px 0 6px;text-align:center}.cta p{margin:.2em 0 .8em}
.faq h3{margin-top:1.1em}.crumbs{font-size:.9rem;margin-bottom:10px}
.site-foot{border-top:1px solid var(--line);background:#fff;padding:22px 0;font-size:.9rem;color:var(--muted)}.site-foot a{color:var(--muted);margin-right:14px}