:root{--bg:#F8FAFC;--card:#FFFFFF;--line:#E2E8F0;--ink:#0F172A;--muted:#475569;--blue:#2563EB;--err:#B91C1C;--err-bg:#FEF2F2}
@media (prefers-color-scheme:dark){:root{--bg:#0B1120;--card:#111827;--line:#1F2937;--ink:#E5E7EB;--muted:#94A3B8;--blue:#3B82F6;--err:#FCA5A5;--err-bg:#2A1215}}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:var(--bg);color:var(--ink);font:14px/1.55 Inter,"Segoe UI","Iskoola Pota","Nirmala UI",system-ui,sans-serif;
 background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:44px 44px;background-position:-1px -1px}
.wrap{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 16px;gap:22px}
.brand{display:flex;align-items:center;gap:12px}
.mark{display:flex;align-items:flex-end;gap:3px;height:26px}
.mark span{width:6px;background:var(--blue);border-radius:2px}
.mark span:nth-child(1){height:12px}.mark span:nth-child(2){height:20px}.mark span:nth-child(3){height:26px}
.name{font:700 15px/1 "JetBrains Mono",monospace;letter-spacing:.14em}
.tag{font-size:11.5px;color:var(--muted);margin-top:4px;letter-spacing:.02em}
.box{width:100%;max-width:380px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:26px;box-shadow:0 1px 2px rgba(15,23,42,.04),0 12px 32px -12px rgba(15,23,42,.12)}
h1{font-size:19px;margin:0 0 6px;letter-spacing:-.01em}
.sub{color:var(--muted);margin:0 0 18px;font-size:13.5px}
label{display:block;font-size:11.5px;font-weight:600;color:var(--muted);margin:14px 0 6px;text-transform:uppercase;letter-spacing:.06em}
input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--ink);font:inherit;font-size:15px}
input:focus{outline:2px solid var(--blue);outline-offset:1px;border-color:transparent}
input.code{font:600 22px/1 "JetBrains Mono",monospace;letter-spacing:.3em;text-align:center;padding:12px}
button{width:100%;margin-top:20px;padding:11px;border:0;border-radius:8px;background:var(--blue);color:#fff;font:600 14px Inter,system-ui,sans-serif;cursor:pointer}
button:hover{filter:brightness(1.08)}
.msg{background:var(--err-bg);color:var(--err);padding:10px 12px;border-radius:8px;font-size:13px;margin-bottom:6px}
.qr{display:flex;justify-content:center;background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px;margin:4px 0 10px}
.qr svg{width:200px;height:200px}
.secret{font-size:12px;color:var(--muted);text-align:center;margin:0}
.secret code{display:inline-block;margin-top:4px;font:600 13px "JetBrains Mono",monospace;color:var(--ink);letter-spacing:.06em;word-break:break-all}
.back{display:block;text-align:center;margin-top:14px;color:var(--muted);font-size:13px;text-decoration:none}
.foot{display:flex;align-items:center;justify-content:center;gap:7px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:11.5px;color:var(--muted)}
.lock{width:9px;height:8px;border-radius:2px;background:var(--muted);position:relative;margin-top:3px}
.lock::before{content:"";position:absolute;left:1.5px;top:-5px;width:6px;height:6px;border:1.5px solid var(--muted);border-bottom:0;border-radius:4px 4px 0 0;box-sizing:border-box}