:root{--navy:#0b2545;--green:#16a34a;--green-l:#e8f7ee;--grey:#64748b;--line:#e2e8f0;--bg:#f8fafc;--red:#b91c1c}
*{box-sizing:border-box}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:#1e293b;background:#fff}
a{color:var(--navy)}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.site-header{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:5}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;padding-bottom:12px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-weight:600;font-size:1.15rem}
.brand b{color:var(--green)}
nav a{margin-left:16px;text-decoration:none;color:var(--navy);font-size:.95rem}
nav a:hover{color:var(--green)}
.hero{background:linear-gradient(180deg,var(--bg),#fff);padding:48px 0 32px;text-align:center}
.hero h1{color:var(--navy);font-size:clamp(1.9rem,5vw,2.8rem);line-height:1.2;margin:14px 0 10px}
.lead{max-width:680px;margin:0 auto 26px;color:var(--grey)}
.pill{display:inline-block;background:var(--green-l);color:var(--green);border:1px solid #b7e4c7;font-weight:700;letter-spacing:.08em;font-size:.78rem;padding:4px 12px;border-radius:99px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:0 2px 10px rgba(11,37,69,.05);text-align:left}
.search{max-width:680px;margin:0 auto}
.search label{font-weight:600;color:var(--navy);display:block;margin-bottom:6px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.row.links{margin-top:12px}
input[type=text]{flex:1 1 220px;padding:13px 14px;font-size:1.05rem;border:1.5px solid #cbd5e1;border-radius:10px;letter-spacing:.06em;text-transform:uppercase;font-family:ui-monospace,Consolas,monospace}
input:focus,button:focus-visible{outline:3px solid #86efac;border-color:var(--green)}
.btn{border:1.5px solid var(--navy);background:#fff;color:var(--navy);padding:12px 20px;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer}
.btn.primary{background:var(--navy);color:#fff;display:inline-flex;align-items:center;gap:8px;justify-content:center}
.btn.ghost{border-color:var(--green);color:var(--green)}
.btn:hover:not(:disabled){filter:brightness(1.1)}
.btn:disabled{opacity:.65;cursor:not-allowed}
.linkbtn{background:none;border:0;color:var(--navy);text-decoration:underline;cursor:pointer;font-size:.95rem}
.spin{width:16px;height:16px;border:2.5px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:s .7s linear infinite}
.spin[hidden]{display:none}
@keyframes s{to{transform:rotate(360deg)}}
.small{font-size:.88rem}.muted{color:var(--grey)}
.msg{margin-top:14px;padding:12px 14px;border-radius:10px;background:#fef2f2;border:1px solid #fecaca;color:var(--red);font-size:.95rem}
.msg .btn{margin-top:8px;padding:7px 14px;font-size:.9rem}
#result{max-width:760px;margin:24px auto 0}
.demo-banner{background:#fff7ed;border:1px dashed #f59e0b;color:#9a3412;font-weight:700;text-align:center;padding:9px;border-radius:8px;margin-bottom:16px;letter-spacing:.04em}
.res-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.res-head h2{margin:0;color:var(--navy);font-size:1.4rem}
.mono{font-family:ui-monospace,Consolas,monospace;letter-spacing:.06em;margin:4px 0 0;color:var(--grey)}
.badge{padding:5px 14px;border-radius:99px;font-weight:700;font-size:.85rem}
.badge.ok{background:var(--green-l);color:var(--green)}.badge.bad{background:#fee2e2;color:var(--red)}.badge.unk{background:#e2e8f0;color:#475569}
dl{display:grid;grid-template-columns:200px 1fr;margin:0;border-top:1px solid var(--line)}
dt,dd{margin:0;padding:11px 0;border-bottom:1px solid var(--line)}
dt{color:var(--grey);font-size:.92rem}dd{font-weight:500;word-break:break-word}
dd ul{margin:0;padding-left:18px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.section{padding:40px 20px}
.section h2{color:var(--navy);text-align:center;margin:0 0 22px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.step .num{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--green);color:#fff;font-weight:700;align-items:center;justify-content:center}
.card h3{margin:10px 0 6px;color:var(--navy)}
.card p{margin:0;color:#475569}
.doc{padding:40px 20px;max-width:780px}.doc h1{color:var(--navy)}
.site-footer{background:var(--navy);color:#cbd5e1;padding:28px 0;margin-top:40px;text-align:center}
.site-footer a{color:#86efac}.site-footer p{margin:6px 0}
@media(max-width:560px){dl{grid-template-columns:1fr}dt{border-bottom:0;padding-bottom:0}nav a{margin:0 12px 0 0}.btn{flex:1 1 auto}#disclaimer{grid-column:auto!important}}
@media print{.site-header,.site-footer,.hero .pill,.hero h1,.lead,.search,.actions,#how,.section{display:none!important}.hero{padding:0;background:#fff}.card{box-shadow:none}}