:root{--bg:#fbf8f1;--card:#fff;--ink:#1c2430;--muted:#5b6573;--line:#e4e2dc;--brand:#1f4e79;--brand-d:#143657;--brand-l:#e9f0f7;--accent:#e8590c;--accent-l:#fff1e6;--ok:#2f855a;--ok-l:#e8f6ee;--warn:#b7791f;--warn-l:#fdf5e1;--bad:#c53030;--bad-l:#fdeaea;--r:14px;--sh:0 1px 2px rgba(28,36,48,.05),0 4px 16px rgba(28,36,48,.06);--max:1120px}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:18.5px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
img,svg{max-width:100%}
a{color:var(--brand);text-underline-offset:2px}
a:hover{color:var(--brand-d)}
h1,h2,h3{line-height:1.25;letter-spacing:-.01em;margin:0 0 .5em}
h1{font-size:clamp(1.75rem,4vw,2.4rem)}
h2{font-size:1.45rem;margin-top:1.8em}
h3{font-size:1.1rem;margin-top:1.4em}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:#fff;padding:8px;z-index:9}
/* header */
.hdr{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.2rem;color:var(--ink);text-decoration:none}
.logo b{color:var(--brand)}
.logo svg{width:32px;height:32px}
.nav{display:flex;gap:4px}
.nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem;padding:8px 12px;border-radius:9px}
.nav a:hover{background:var(--brand-l);color:var(--brand-d)}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:9px;padding:8px 11px;font:inherit;font-weight:600;cursor:pointer}
@media(max-width:760px){.menu-btn{display:block}.nav{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:8px 14px 14px;border-bottom:1px solid var(--line)}.nav.open{display:flex}}
/* breadcrumbs */
.crumbs{font-size:.88rem;color:var(--muted);padding:18px 0 4px}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 6px}
/* hero */
.hero{padding:56px 0 36px;text-align:center}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:640px;margin:0 auto 26px}
.search{max-width:520px;margin:0 auto;position:relative}
.search input{width:100%;padding:15px 18px 15px 46px;font:inherit;font-size:1.05rem;border:2px solid var(--line);border-radius:999px;background:#fff;outline:none}
.search input:focus{border-color:var(--brand)}
.search svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);width:20px;color:var(--muted)}
.badges{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:22px;font-size:.9rem;color:var(--muted)}
.badges span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 13px}
/* tool grid */
.cat-title{display:flex;align-items:center;gap:10px;margin:38px 0 14px;font-size:1.3rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.tcard{display:flex;gap:14px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;text-decoration:none;color:var(--ink);box-shadow:var(--sh);transition:transform .12s,border-color .12s}
.tcard:hover{transform:translateY(-2px);border-color:var(--brand);color:var(--ink)}
.tcard .ic{flex:none;width:44px;height:44px;border-radius:12px;background:var(--brand-l);display:grid;place-items:center;font-size:1.4rem}
.tcard h3{margin:0 0 3px;font-size:1.02rem}
.tcard p{margin:0;font-size:.9rem;color:var(--muted);line-height:1.45}
.soon{opacity:.55;pointer-events:none}
.soon h3::after{content:" · soon";font-weight:500;color:var(--muted);font-size:.85rem}
.noresult{display:none;text-align:center;color:var(--muted);padding:20px}
/* tool page */
.tool-head{padding:10px 0 6px}
.tool-head p{color:var(--muted);font-size:1.08rem;max-width:760px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start;margin-top:14px}
@media(max-width:920px){.layout{grid-template-columns:minmax(0,1fr)}.side{position:static}}
.calc{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh);padding:24px}
.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(200px,100%),1fr));gap:16px}
.f label{display:block;font-weight:650;font-size:.93rem;margin-bottom:6px}
.f small{display:block;color:var(--muted);font-size:.8rem;margin-top:5px;line-height:1.4}
.f input,.f select{width:100%;padding:12px 13px;font:inherit;border:1.5px solid #d6d3cb;border-radius:11px;background:#fff;color:var(--ink);min-height:48px}
.f input:focus,.f select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-l)}
.combo{display:flex}
.combo input{border-radius:11px 0 0 11px;min-width:0}
.combo select{width:auto;border-radius:0 11px 11px 0;border-left:0;background:#f3f2ee;font-weight:600}
.full{grid-column:1/-1}
.seg{display:flex;flex-wrap:wrap;gap:8px}
.seg label{margin:0;position:relative}
.seg input{position:absolute;left:0;top:0;width:1px;height:1px;opacity:0;pointer-events:none}
.seg span{display:inline-block;padding:9px 15px;border:1.5px solid #d6d3cb;border-radius:999px;cursor:pointer;font-weight:600;font-size:.92rem;background:#fff}
.seg input:checked+span{background:var(--brand);border-color:var(--brand);color:#fff}
.seg input:focus-visible+span{box-shadow:0 0 0 3px var(--brand-l)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--brand);color:#fff;border:0;border-radius:11px;padding:13px 22px;font:inherit;font-weight:700;cursor:pointer;min-height:48px}
.btn:hover{background:var(--brand-d)}
.btn.ghost{background:#fff;color:var(--brand);border:1.5px solid var(--brand)}
.result{margin-top:22px;border-radius:16px;background:var(--brand-l);padding:22px;border:1px solid #c9d9ea}
.result .big{font-size:clamp(2rem,6vw,2.8rem);font-weight:800;color:var(--brand-d);line-height:1.1}
.result .lbl{font-size:.9rem;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.04em;margin-bottom:4px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-top:16px}
.stat{background:#fff;border-radius:12px;padding:12px 14px}
.stat b{display:block;font-size:1.25rem}
.stat span{font-size:.82rem;color:var(--muted)}
.result.ok{background:var(--ok-l);border-color:#bfe3cd}.result.ok .big{color:var(--ok)}
.result.warn{background:var(--warn-l);border-color:#f1dca4}.result.warn .big{color:var(--warn)}
.result.bad{background:var(--bad-l);border-color:#f3c0c0}.result.bad .big{color:var(--bad)}
.note{font-size:.88rem;color:var(--muted);margin-top:14px;margin-bottom:0}
.alert{border-radius:12px;padding:14px 16px;margin:16px 0;font-size:.95rem}
.alert.vet{background:var(--accent-l);border:1px solid #fbd3b5}
.alert.red{background:var(--bad-l);border:1px solid #f3c0c0}
.names{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;margin-top:6px}
.names button{background:#fff;border:1.5px solid var(--line);border-radius:12px;padding:12px;font:inherit;font-weight:700;font-size:1.05rem;cursor:pointer;color:var(--ink)}
.names button:hover{border-color:var(--brand)}
.names button.copied{background:var(--brand);color:#fff;border-color:var(--brand)}
/* sidebar */
.side{position:sticky;top:84px;display:flex;flex-direction:column;gap:16px}
.box{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px}
.box h3{margin:0 0 10px;font-size:1rem}
.box ul{list-style:none;margin:0;padding:0}
.box li a{display:flex;gap:9px;align-items:center;padding:7px 0;text-decoration:none;color:var(--ink);font-weight:550;font-size:.94rem;border-bottom:1px dashed var(--line)}
.box li:last-child a{border:0}
.box li a:hover{color:var(--brand)}
/* article */
.article{max-width:780px}
.article ul,.article ol{padding-left:1.3em}
.article li{margin-bottom:.4em}
.tbl{overflow-x:auto;margin:14px 0 20px;border:1px solid var(--line);border-radius:12px;background:#fff}
table{border-collapse:collapse;width:100%;font-size:.94rem}
th,td{padding:10px 13px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}
th{background:#f3f2ee;font-weight:700}
tr:last-child td{border-bottom:0}
.formula{background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:10px;padding:12px 16px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92rem;overflow-x:auto}
details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px}
summary{cursor:pointer;padding:14px 18px;font-weight:650;list-style:none;position:relative;padding-right:44px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:18px;top:11px;font-size:1.3rem;color:var(--brand)}
details[open] summary::after{content:"–"}
details>div{padding:0 18px 14px;color:#333c48}
.sources{font-size:.9rem;color:var(--muted)}
.updated{font-size:.88rem;color:var(--muted)}
.page{padding:20px 0 50px;max-width:780px}
/* footer */
.ftr{margin-top:60px;background:#1c2430;color:#c9d1db;padding:42px 0 26px;font-size:.92rem}
.ftr a{color:#e6ebf1;text-decoration:none}
.ftr a:hover{text-decoration:underline}
.fcols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:26px}
@media(max-width:760px){.fcols{grid-template-columns:1fr 1fr}}
.ftr h4{color:#fff;margin:0 0 10px;font-size:.95rem}
.ftr ul{list-style:none;margin:0;padding:0}
.ftr li{margin-bottom:6px}
.fbottom{border-top:1px solid #344050;margin-top:28px;padding-top:18px;font-size:.84rem;color:#9aa5b3}
.ftr .logo{color:#fff;margin-bottom:10px}
.combo .sfx{display:flex;align-items:center;padding:0 13px;border:1.5px solid #d6d3cb;border-left:0;border-radius:0 11px 11px 0;background:#f3f2ee;font-weight:600;font-size:.92rem;color:var(--muted);white-space:nowrap}
.combo input+.sfx{min-height:48px}
.sub{font-size:.95rem;margin:18px 0 10px;color:var(--ink)}
.combo.pre .sfx{order:-1;border-left:1.5px solid #d6d3cb;border-right:0;border-radius:11px 0 0 11px}
.combo.pre input{border-radius:0 11px 11px 0}

.f label{font-size:1rem}
.f input,.f select{font-size:1.08rem;min-height:54px}
.btn{min-height:54px;font-size:1.05rem}
.result .big{font-size:clamp(2rem,7vw,3rem)}
.dob{display:grid;grid-template-columns:1.4fr .8fr 1fr;gap:10px}
.gold{color:#9a6700}
.star-list{list-style:none;margin:14px 0 0;padding:0;display:grid;gap:10px}
.star-list li{background:#fff;border:1px solid var(--line);border-radius:14px;padding:13px 16px;display:flex;justify-content:space-between;gap:12px;align-items:center;flex-wrap:wrap}
.star-list b{font-size:1.08rem}
.star-list span{color:var(--muted);font-size:.93rem}
.star-list .age{background:var(--brand-l);color:var(--brand-d);font-weight:700;border-radius:999px;padding:4px 12px;font-size:.92rem;white-space:nowrap}
.star-list .same{border:2px solid #d4a72c;background:#fffaeb}
.share{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.share a,.share button{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border-radius:12px;font:inherit;font-weight:700;font-size:.98rem;text-decoration:none;cursor:pointer;border:0}
.share .fb{background:#1877f2;color:#fff}
.share .cp{background:#fff;border:1.5px solid var(--brand);color:var(--brand)}
.byline{font-size:.9rem;color:var(--muted);margin-top:-4px}
.pill-links{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 20px}
.pill-links a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;text-decoration:none;font-weight:600;font-size:.95rem}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(220px,100%),1fr));gap:12px;margin:16px 0}
.facts div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px}
.facts b{display:block;font-size:1.15rem}
.facts span{color:var(--muted);font-size:.9rem}