/* Nova Royale ID — SCID-style webview login.
   Clean, first-class, Supercell-ID-flow aesthetic; Nova-branded. Light + dark aware. */
:root{
  --bg1:#f3f5fb; --bg2:#e7ecf7;
  --card:#ffffff; --ink:#12172b; --muted:#69708a; --line:#e4e8f2;
  --primary:#5b6bff; --primary-ink:#ffffff; --primary-press:#4655e6;
  --field:#f6f8fd; --err:#e5484d; --ring:rgba(91,107,255,.28);
  --shadow:0 18px 50px rgba(24,33,77,.16),0 3px 10px rgba(24,33,77,.06);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg1:#0d1020; --bg2:#141a30; --card:#171d33; --ink:#eef1fb; --muted:#9aa2bd;
    --line:#26304d; --field:#111730; --primary:#6d7bff; --primary-press:#5a68f0;
    --ring:rgba(109,123,255,.35); --shadow:0 24px 60px rgba(0,0,0,.55);
  }
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
body{
  margin:0; color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:radial-gradient(1200px 700px at 50% -10%,var(--bg2),var(--bg1));
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
.app{min-height:100%;display:flex;align-items:center;justify-content:center;padding:24px 16px}

/* view switching */
.view{display:none;width:100%;max-width:400px;flex-direction:column;align-items:center;animation:fade .28s ease}
.view.is-active{display:flex}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* card */
.card{width:100%;background:var(--card);border:1px solid var(--line);border-radius:22px;
  padding:30px 26px 26px;box-shadow:var(--shadow)}
.card--center{text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px}

/* brand */
.brand{text-align:center;margin-bottom:22px}
.brand--tight{margin-bottom:18px}
.brand__mark{display:flex;justify-content:center;margin-bottom:14px}
.brand__mark svg{filter:drop-shadow(0 6px 14px rgba(91,107,255,.4));border-radius:14px}
.brand__name{font-size:22px;font-weight:800;letter-spacing:-.2px}
.brand__name span{color:var(--primary)}
.brand__sub{margin-top:6px;color:var(--muted);font-size:14px;line-height:1.4}

/* form */
.form{display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:7px}
.field__label{font-size:12.5px;font-weight:600;color:var(--muted);letter-spacing:.2px}
.field__input{width:100%;height:52px;padding:0 16px;font-size:16px;color:var(--ink);
  background:var(--field);border:1.5px solid var(--line);border-radius:14px;outline:none;transition:border-color .15s,box-shadow .15s}
.field__input:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--ring)}

/* buttons */
.btn{position:relative;height:52px;border:0;border-radius:14px;font-size:16px;font-weight:700;
  cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;transition:transform .05s,background .15s,opacity .15s}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--primary);color:var(--primary-ink);box-shadow:0 8px 20px rgba(91,107,255,.35)}
.btn--primary:active{background:var(--primary-press)}
.btn[disabled]{opacity:.6;cursor:default}
.btn__spin{width:18px;height:18px;border:2.5px solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}

/* otp */
.otp{display:flex;gap:9px;justify-content:space-between;direction:ltr}
.otp__box{width:100%;aspect-ratio:1/1.15;min-width:0;text-align:center;font-size:24px;font-weight:800;color:var(--ink);
  background:var(--field);border:1.5px solid var(--line);border-radius:13px;outline:none;transition:border-color .15s,box-shadow .15s}
.otp__box:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--ring)}
.otp__box.filled{border-color:var(--primary)}

/* misc text */
.fineprint{margin:16px 2px 0;text-align:center;color:var(--muted);font-size:12.5px;line-height:1.5}
.err{margin:0 2px;color:var(--err);font-size:13px;font-weight:600}
.linkback{align-self:flex-start;background:none;border:0;color:var(--muted);font-size:14px;font-weight:600;padding:0 0 14px;cursor:pointer}
.linkmuted{display:block;margin:16px auto 0;background:none;border:0;color:var(--primary);font-size:14px;font-weight:700;cursor:pointer}
.acct{background:var(--field);border:1px solid var(--line);border-radius:12px;padding:12px 16px;font-weight:700;font-size:15px;width:100%;word-break:break-all}
.check{animation:pop .35s ease}
@keyframes pop{0%{transform:scale(.6);opacity:0}60%{transform:scale(1.08)}100%{transform:scale(1);opacity:1}}

/* footer */
.foot{margin-top:18px;padding:0 8px;text-align:center;color:var(--muted);font-size:11px;line-height:1.5;opacity:.85;max-width:360px}

/* spinner (loading view) */
.spinner{width:38px;height:38px;border:3.5px solid var(--line);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}