:root{--black:#070707;--black-2:#0f0f10;--black-3:#171717;--white:#fff;--off:#e9e6df;--mute:#9a978f;--gold:#d9b85a;--gold-2:#f3dc8f;--li:#0a66c2;--line:rgba(255,255,255,.1);--err:#ff7b7b;--ok:#4ade80}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--black);color:var(--off);font:16px/1.55 "Inter Tight",system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
a{color:var(--gold-2)}
.wrap{max-width:1040px;margin:0 auto;padding:28px 16px 72px}.wrap.narrow{max-width:760px}.center{text-align:center}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--white);text-decoration:none;font-weight:700;letter-spacing:.02em;margin-bottom:28px}.brand img{height:28px;width:auto}
.serif{font-family:"Instrument Serif",Georgia,serif;font-weight:400;letter-spacing:-.01em;line-height:1.05}
h1.serif{font-size:clamp(34px,5.5vw,56px);margin:8px 0 10px;color:var(--white)}
.eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:600}
.lead{color:var(--mute);font-size:17px;margin:0 0 26px}.lead b{color:var(--off)}
.grid{display:grid;grid-template-columns:1fr;gap:28px}@media(min-width:900px){.grid{grid-template-columns:420px 1fr;align-items:start}}
.card{background:var(--black-2);border:1px solid var(--line);border-radius:18px;padding:24px}
.f{margin:0 0 16px}.f label{display:block;font-size:13px;color:var(--mute);margin:0 0 6px;font-weight:500}
.f input{width:100%;background:var(--black-3);border:1px solid var(--line);border-radius:10px;color:var(--white);padding:13px 14px;font:inherit;outline:none}
.f input:focus{border-color:var(--gold)}.f.bad input{border-color:var(--err)}.f .msg{display:none;color:var(--err);font-size:13px;margin-top:6px}.f.bad .msg{display:block}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border:0;border-radius:999px;padding:14px 24px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;transition:transform .12s}.btn:active{transform:scale(.98)}
.btn.gold{background:var(--gold);color:var(--black)}.btn.gold:hover{background:var(--gold-2)}
.btn.li{background:var(--li);color:#fff}.btn.li svg{width:20px;height:20px;fill:#fff}
.btn.ghost{background:transparent;color:var(--off);border:1px solid var(--line)}
.btn[disabled]{opacity:.55;cursor:wait}
.note{font-size:13px;color:var(--mute);margin-top:12px}
.err{display:none;background:rgba(255,123,123,.1);border:1px solid rgba(255,123,123,.35);color:#ffd0d0;padding:12px 14px;border-radius:10px;font-size:14px;margin:0 0 16px}.err.on{display:block}
.stage{position:relative;background:var(--black-2);border:1px solid var(--line);border-radius:18px;padding:18px;min-height:260px;display:flex;align-items:center;justify-content:center}
.stage .empty{color:var(--mute);text-align:center;max-width:320px}.stage .empty .big{font-size:40px;margin-bottom:8px}
.stage img.cert{display:none;width:100%;height:auto;border-radius:8px;box-shadow:0 18px 60px rgba(0,0,0,.6)}
.stage.ready .empty{display:none}.stage.ready img.cert{display:block}
.stage.busy .empty{display:block}
.result{display:none;margin-top:18px}.result.on{display:block}
.result .who{font-size:15px;color:var(--mute);margin:0 0 14px}.result .who b{color:var(--white)}
.actions{display:flex;flex-wrap:wrap;gap:12px}
.badge{display:inline-block;font-size:13px;font-weight:600;padding:6px 12px;border-radius:999px;margin-bottom:10px}.badge.ok{background:rgba(74,222,128,.12);color:var(--ok)}.badge.bad{background:rgba(255,123,123,.12);color:var(--err)}
img.cert{width:100%;height:auto;border-radius:8px;box-shadow:0 18px 60px rgba(0,0,0,.6);margin:8px 0 20px}
.facts{display:grid;grid-template-columns:1fr;gap:10px;margin:0 0 22px;padding:0}@media(min-width:600px){.facts{grid-template-columns:repeat(3,1fr)}}
.facts div{background:var(--black-2);border:1px solid var(--line);border-radius:12px;padding:12px 14px}.facts dt{font-size:12px;color:var(--mute);text-transform:uppercase;letter-spacing:.08em}.facts dd{margin:4px 0 0;color:var(--white);font-weight:600;font-size:14px;word-break:break-word}
.k{display:inline-block;width:60px;height:60px;border-radius:50%;line-height:60px;font-size:30px;font-weight:700;margin:40px 0 8px}.k.ok{background:rgba(74,222,128,.15);color:var(--ok)}.k.bad{background:rgba(255,123,123,.15);color:var(--err)}
.spin{width:22px;height:22px;border:3px solid rgba(0,0,0,.25);border-top-color:var(--black);border-radius:50%;animation:s .8s linear infinite;display:none}.btn.busy .spin{display:inline-block}
@keyframes s{to{transform:rotate(360deg)}}