:root{
  --bg:#F6F5F1;--surface:#FFFFFF;--text:#12181F;--text-2:#55616A;--line:rgba(18,24,31,.14);
  --accent:#11776E;--accent-ink:#FFFFFF;--danger:#A63B31;--field:#FFFFFF;
  --shadow:0 1px 2px rgba(18,24,31,.05),0 18px 48px rgba(18,24,31,.10);
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0E1318;--surface:#171E26;--text:#F2F4F5;--text-2:#A9B4BC;--line:rgba(255,255,255,.16);
  --accent:#4FC8B9;--accent-ink:#0E1318;--danger:#F0897E;--field:#0E1318;--shadow:none;
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;min-height:100vh;min-height:100dvh;display:grid;place-items:center;
  padding:max(20px,env(safe-area-inset-top)) 16px max(20px,env(safe-area-inset-bottom));
  background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","IBM Plex Sans","Segoe UI",system-ui,sans-serif;
  line-height:1.45;-webkit-font-smoothing:antialiased;
}
.card{width:100%;max-width:400px;background:var(--surface);border-radius:24px;padding:32px 24px 24px;box-shadow:var(--shadow)}
.logo{display:block;height:auto;margin-bottom:28px}
.logo-dark{display:none}
@media (prefers-color-scheme:dark){.logo-light{display:none}.logo-dark{display:block}}
h1{margin:0 0 6px;font-size:28px;line-height:1.15;letter-spacing:-.02em;font-weight:700}
.lead{margin:0 0 22px;color:var(--text-2);font-size:16px}
label{display:block;font-size:14px;font-weight:600;margin:0 0 6px}
input{
  width:100%;height:52px;padding:0 14px;border:1px solid var(--line);border-radius:14px;
  background:var(--field);color:var(--text);font:inherit;font-size:17px;outline:none;
  transition:border-color .15s,box-shadow .15s;
}
input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(17,119,110,.18)}
.code{font-size:26px;font-weight:650;letter-spacing:.42em;text-align:center;padding-left:.42em;font-variant-numeric:tabular-nums}
button{
  width:100%;height:52px;margin-top:14px;border:0;border-radius:14px;background:var(--accent);color:var(--accent-ink);
  font:inherit;font-size:17px;font-weight:650;cursor:pointer;transition:transform .12s ease,opacity .15s;
  -webkit-tap-highlight-color:transparent;
}
button:active{transform:scale(.98)}
button:disabled{opacity:.55;cursor:default}
button:focus-visible{outline:3px solid rgba(79,200,185,.6);outline-offset:2px}
button.quiet{background:transparent;color:var(--accent);height:44px;margin-top:6px;font-weight:600}
.message{min-height:22px;margin:14px 0 0;font-size:15px;color:var(--text-2)}
.message.error{color:var(--danger);font-weight:600}
.foot{margin:18px 0 0;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-2)}
[hidden]{display:none!important}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}