:root{--bg:#EEF1F6;--surface:#fff;--line:#D3D9E4;--ink:#0D1430;--mute:#5A6379;--navy:#1B2262;--on-navy:#F2F4FB;--brass:#8F6A2B;--bad:#B42F38;--bad-soft:#F9E0E2;--info:#2E5DB0}
@media (prefers-color-scheme:dark){:root{--bg:#080C1C;--surface:#10162D;--line:#263156;--ink:#E7EAF5;--mute:#9AA3BD;--navy:#C3CCF6;--on-navy:#0D1430;--brass:#DDBF85;--bad:#FF8089;--bad-soft:#3A1519;--info:#8FB0F2;color-scheme:dark}}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 "Source Sans 3","Segoe UI",system-ui,sans-serif;-webkit-font-smoothing:antialiased}
.auth{min-height:100vh;display:grid;align-content:center;justify-items:center;gap:20px;padding:32px max(16px,env(safe-area-inset-right,0px)) 32px max(16px,env(safe-area-inset-left,0px))}
.brand{display:flex;align-items:center;gap:12px}
.brand svg{height:44px;width:auto;color:var(--navy)}
.brand b{display:block;font:800 21px/1.1 "Archivo",system-ui,sans-serif}
.brand span{font:500 11px/1.4 "IBM Plex Mono",monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--brass)}
.card{width:min(420px,100%);background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--brass);border-radius:12px;padding:26px 24px}
h1{font:800 24px/1.15 "Archivo",system-ui,sans-serif;margin:0 0 6px;letter-spacing:-.01em}
.lead{margin:0 0 18px;color:var(--mute)}
form{display:grid;gap:8px}
label{font-weight:600;font-size:14px;margin-top:6px}
.in{width:100%;min-height:46px;border:1px solid var(--line);border-radius:9px;padding:10px 12px;font:inherit;background:var(--surface);color:var(--ink)}
.in:focus{outline:2px solid var(--info);outline-offset:1px;border-color:var(--navy)}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace;letter-spacing:.06em}
.btn{margin-top:12px;min-height:46px;border:0;border-radius:9px;background:var(--navy);color:var(--on-navy);font:600 16px inherit;font-family:inherit;cursor:pointer}
.btn:hover{filter:brightness(1.08)}
.btn:focus-visible,.link:focus-visible{outline:2px solid var(--info);outline-offset:2px}
.link{background:none;border:0;padding:0;color:var(--info);font:600 14px inherit;font-family:inherit;cursor:pointer}
.row{display:flex;justify-content:flex-end;margin-top:6px}
.help{font-size:13.5px;color:var(--mute);margin:2px 0 0}
.err{background:var(--bad-soft);color:var(--bad);border-radius:8px;padding:9px 12px;margin:8px 0 0;font-size:14.5px}
.steps{margin:0 0 12px;padding-left:20px;color:var(--ink)}
.qr{display:grid;place-items:center;background:#fff;border-radius:10px;padding:12px;margin:0 auto 6px;width:226px;min-height:226px;color:#1B2262;font-size:13px;text-align:center}
.key{word-break:break-all;color:var(--ink)}
.codes{list-style:none;padding:0;margin:0 0 6px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.codes li{border:1px dashed var(--line);border-radius:8px;padding:8px;text-align:center;font-size:15px}
.foot{font-size:12.5px;color:var(--mute);margin:0}
.ok{background:#DDF1E7;color:#1F7553;border-radius:8px;padding:9px 12px;font-size:14.5px}
table{width:100%;border-collapse:collapse;font-size:14px;margin:8px 0}
td,th{border-bottom:1px solid var(--line);padding:6px 4px;text-align:left}