:root{
    --bg:#070b12;--panel:#0e1622;--panel2:#0b121d;--line:#1b2840;--line2:#243352;
    --txt:#dce8f7;--muted:#7c8db0;--dim:#8a9abb;
    --green:#27e08a;--greenbg:rgba(39,224,138,.12);--red:#ff5874;--redbg:rgba(255,88,116,.12);
    --amber:#ffb951;--amberbg:rgba(255,185,81,.13);--blue:#4f9dff;
    --accent:var(--blue);--bluebg:rgba(79,157,255,.12);
    --mono:'SF Mono',ui-monospace,Menlo,Consolas,monospace;
  }
  *{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
  html,body{max-width:100%;overflow-x:hidden}
  body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Inter,Roboto,sans-serif;
    background:radial-gradient(800px 420px at 80% -10%,#13213c 0%,var(--bg) 60%);
    color:var(--txt);line-height:1.45;-webkit-font-smoothing:antialiased;
    padding:0 12px calc(20px + env(safe-area-inset-bottom)) 12px}
  .center{min-height:72vh;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:10px}
  .card{width:100%;max-width:380px;background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:16px;padding:22px}
  .card h1{font-size:20px;font-weight:800;margin-bottom:6px}
  .card .lead{font-size:12.5px;color:var(--muted);margin-bottom:18px}
  .field{text-align:left;margin-bottom:12px}
  .field label{font-size:11px;color:var(--muted);display:block;margin-bottom:5px}
  .field input{width:100%;padding:12px 13px;border-radius:11px;border:1px solid var(--line2);background:#0a1120;color:var(--txt);font-size:15px}
  .field input:focus{outline:none;border-color:var(--blue)}
  .btn{display:block;width:100%;padding:13px;border-radius:12px;font-weight:750;font-size:14.5px;border:none;cursor:pointer}
  .btn-primary{background:linear-gradient(120deg,var(--green),var(--blue));color:#06121f}
  .btn-primary:active{filter:brightness(1.08)}
  .btn-ghost{background:transparent;border:1px solid var(--line2);color:var(--txt);margin-top:9px}
  .switch{font-size:12px;color:var(--muted);margin-top:14px}
  .switch a{color:var(--blue);font-weight:600;cursor:pointer}
  .showpwrow{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin:-4px 0 14px;cursor:pointer;text-align:left}
  .showpwrow input{width:16px;height:16px}
  .msg{font-size:12px;margin-top:12px;min-height:18px}
  .biglogo{width:64px;height:64px;margin:0 auto 16px;filter:drop-shadow(0 4px 14px rgba(39,224,138,.22))}
  .biglogo svg{width:100%;height:100%;display:block}
  .modenote{font-size:10.5px;color:var(--muted);line-height:1.5;padding:9px 13px;border-bottom:1px solid var(--line);background:#0a111c}
  .modenote b{color:var(--txt)}
  .ic{font-size:34px;margin-bottom:8px}
  .fatal{position:fixed;top:0;left:0;right:0;z-index:200;background:#2a1620;color:var(--red);border-bottom:1px solid #5a2230;
    padding:calc(8px + env(safe-area-inset-top)) 14px 9px;font-size:12.5px;text-align:center;line-height:1.4}
  .fatal a{color:var(--blue);font-weight:700;cursor:pointer;margin-left:8px;text-decoration:underline}
  .installbar{position:fixed;left:10px;right:10px;bottom:calc(12px + env(safe-area-inset-bottom));z-index:150;
    background:linear-gradient(135deg,#10243f,#0d1a2e);border:1px solid #25406a;border-radius:14px;
    padding:12px 14px;display:flex;align-items:center;gap:12px;box-shadow:0 10px 34px rgba(0,0,0,.45)}
  .installbar .ib-logo{width:38px;height:38px;border-radius:9px;background:linear-gradient(135deg,var(--green),var(--blue));color:#06121f;display:grid;place-items:center;font-weight:850;font-size:19px;flex:0 0 auto}
  .installbar .ib-txt{flex:1;min-width:0;font-size:12px;color:var(--muted);line-height:1.4}
  .installbar .ib-txt b{display:block;color:var(--txt);font-size:14px;margin-bottom:1px}
  .ib-act{display:flex;align-items:center;gap:8px;flex:0 0 auto}
  .ib-install{background:linear-gradient(120deg,var(--green),var(--blue));color:#06121f;border:none;border-radius:10px;padding:10px 16px;font-weight:750;font-size:13.5px;cursor:pointer}
  .ib-install:active{filter:brightness(1.08)}
  .ib-x{color:var(--dim);font-size:17px;cursor:pointer;padding:2px 4px;line-height:1}
  .ib-share{width:15px;height:15px;vertical-align:-3px;margin:0 1px}

.hide{display:none!important}.biglogo{width:64px;height:64px;margin:0 auto 18px}.biglogo svg{width:100%;height:100%}a{color:var(--blue)}.center{min-height:90vh}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.fatal{max-width:380px;margin:20px auto;padding:12px;border:1px solid var(--amber);border-radius:12px;color:var(--amber)}