:root{
  --bg:#f6f7fb;--card:#ffffff;--text:#14161f;--muted:#5b6275;--line:#e3e6ef;
  --brand:#4f46e5;--brand-2:#0ea5a4;--brand-soft:#eef0ff;--ok:#059669;--warn:#d97706;
  --radius:14px;--shadow:0 1px 2px rgba(20,22,31,.05),0 4px 16px rgba(20,22,31,.05);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0e1017;--card:#161924;--text:#eceef5;--muted:#9aa1b5;--line:#262a38;
  --brand:#8b85ff;--brand-2:#2dd4bf;--brand-soft:#1f2140;--shadow:none;}}
:root[data-theme="dark"]{--bg:#0e1017;--card:#161924;--text:#eceef5;--muted:#9aa1b5;--line:#262a38;
  --brand:#8b85ff;--brand-2:#2dd4bf;--brand-soft:#1f2140;--shadow:none;}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",sans-serif}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}
header.top{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:58px;gap:12px}
.logo{font-weight:800;font-size:1.15rem;color:var(--text);display:flex;align-items:center;gap:8px}
.logo span.dot{width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--brand),var(--brand-2));display:inline-grid;place-items:center;color:#fff;font-size:.9rem}
.logo:hover{text-decoration:none}
nav.top a{margin-left:14px;color:var(--muted);font-size:.95rem}
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:10px;padding:10px 16px;font-weight:600;cursor:pointer;font-size:.95rem}
.btn:hover{text-decoration:none;filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--line)}
.hero{padding:40px 0 18px;text-align:center}
.hero h1{font-size:clamp(1.7rem,4.5vw,2.6rem);line-height:1.15;margin:0 0 10px}
.hero p{color:var(--muted);max-width:620px;margin:0 auto 18px}
.search{max-width:520px;margin:0 auto;display:block;width:100%;padding:13px 16px;border-radius:12px;border:1px solid var(--line);background:var(--card);color:var(--text);font-size:1rem}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:22px 0}
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);color:var(--text);display:block;transition:transform .12s}
.tile:hover{transform:translateY(-2px);text-decoration:none;border-color:var(--brand)}
.tile .ic{font-size:1.5rem}
.tile h3{margin:6px 0 4px;font-size:1.02rem}
.tile p{margin:0;color:var(--muted);font-size:.88rem}
h2.sec{font-size:1.15rem;margin:30px 0 4px}
.crumbs{font-size:.85rem;color:var(--muted);margin:18px 0 6px}
.tool-head h1{margin:0 0 6px;font-size:clamp(1.5rem,4vw,2.1rem)}
.tool-head p{margin:0 0 16px;color:var(--muted)}
.layout{display:grid;grid-template-columns:1fr 300px;gap:18px;align-items:start}
@media (max-width:860px){.layout{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);margin-bottom:16px}
.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}
label{display:block;font-size:.86rem;font-weight:600;color:var(--muted);margin-bottom:5px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--bg);color:var(--text);font-size:1rem;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:0;border-color:transparent}
.field{margin-bottom:12px}
.result{background:var(--brand-soft);border-radius:12px;padding:16px;margin-top:14px}
.result .big{font-size:1.8rem;font-weight:800;color:var(--brand);line-height:1.2}
.kv{display:flex;justify-content:space-between;gap:10px;padding:7px 0;border-bottom:1px dashed var(--line);font-size:.95rem}
.kv:last-child{border-bottom:0}.kv b{font-variant-numeric:tabular-nums}
.bar{height:12px;border-radius:99px;overflow:hidden;background:var(--line);display:flex;margin:10px 0 4px}
.bar i{display:block;height:100%}
.legend{font-size:.8rem;color:var(--muted);display:flex;gap:14px;flex-wrap:wrap}
.legend span::before{content:"";display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:5px;background:var(--c)}
table{width:100%;border-collapse:collapse;font-size:.9rem}
th,td{text-align:right;padding:7px 6px;border-bottom:1px solid var(--line);font-variant-numeric:tabular-nums}
th:first-child,td:first-child{text-align:left}
.tbl-wrap{overflow-x:auto;max-height:340px}
.prose h2{font-size:1.2rem;margin:22px 0 8px}.prose p,.prose li{color:var(--text)}
.prose details{border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0;background:var(--card)}
.prose summary{font-weight:600;cursor:pointer}
.ad{min-height:0;margin:14px 0;text-align:center}
.ad:empty{display:none}
.side .card h3{margin:0 0 10px;font-size:1rem}
.side a.l{display:block;padding:7px 0;border-bottom:1px solid var(--line);color:var(--text);font-size:.93rem}
.side a.l:last-child{border-bottom:0}
.cta{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;border-radius:var(--radius);padding:18px}
.cta h3{margin:0 0 6px;color:#fff}.cta p{margin:0 0 12px;opacity:.92;font-size:.92rem}
.cta .btn{background:#fff;color:#1f1b6b}
.pill{display:inline-block;padding:4px 10px;border-radius:99px;background:var(--brand-soft);color:var(--brand);font-size:.8rem;font-weight:600;margin:2px}
.people .p{display:flex;gap:8px;margin-bottom:8px}
.people .p input{flex:1}
.x{background:transparent;border:1px solid var(--line);color:var(--muted);border-radius:10px;padding:0 12px;cursor:pointer;font-size:1rem}
.list .it{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:9px 0;border-bottom:1px solid var(--line)}
.list .it small{color:var(--muted)}
.muted{color:var(--muted)}.ok{color:var(--ok)}.warn{color:var(--warn)}
footer{border-top:1px solid var(--line);margin-top:40px;padding:24px 0 40px;color:var(--muted);font-size:.9rem;background:var(--card)}
footer .cols{display:flex;flex-wrap:wrap;gap:18px 28px;justify-content:space-between}
footer a{color:var(--muted);margin-right:14px}
.theme-toggle{background:transparent;border:1px solid var(--line);border-radius:10px;height:36px;width:36px;cursor:pointer;color:var(--text)}
@media (max-width:640px){nav.top a.hide-sm{display:none}}
.layout>div,.layout>aside{min-width:0}