#gc-auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  overflow-y: auto;
  padding: 28px 18px;
  background: radial-gradient(circle at 22% 12%, #184b69 0%, transparent 38%),
    radial-gradient(circle at 85% 94%, #0f514e 0%, transparent 33%),
    linear-gradient(140deg, #061b31 0%, #0b2942 55%, #0c2c3e 100%);
  color: #112e47;
  font: 14px system-ui, -apple-system, Segoe UI, sans-serif;
}
#gc-auth-overlay * { box-sizing: border-box; }
#gc-auth-overlay .gc-auth-card {
  width: min(440px, 100%);
  overflow: hidden;
  border: 1px solid #2a5267;
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 24px 80px #0013248c, 0 0 0 1px #ffffff10;
}
#gc-auth-overlay .gc-auth-hero {
  padding: 30px 36px 24px;
  text-align: center;
  color: #d4eaf3;
  background: radial-gradient(circle at 55% -30%, #185273, transparent 70%),
    linear-gradient(140deg, #0a233d, #0c3447);
}
#gc-auth-overlay .gc-auth-logo {
  display: block;
  width: min(270px, 100%);
  height: auto;
  margin: 0 auto;
  object-fit: contain;
}
#gc-auth-overlay .gc-auth-hero p {
  margin: 5px 0 0;
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: .1px;
}
#gc-auth-overlay .gc-auth-body { padding: 27px 36px 23px; }
#gc-auth-overlay .gc-auth-body h1 {
  margin: 0;
  font-size: 21px;
  letter-spacing: -.35px;
  color: #0d2e46;
}
#gc-auth-overlay .gc-auth-intro {
  margin: 7px 0 24px;
  color: #748a9c;
  line-height: 1.45;
}
#gc-auth-overlay #gc-login label {
  display: block;
  margin: 0 0 8px;
  color: #314e62;
  font-size: 12px;
  font-weight: 700;
}
#gc-auth-overlay #gc-login input {
  display: block;
  width: 100%;
  height: 46px;
  margin: 0 0 17px;
  padding: 11px 13px;
  border: 1px solid #cedee9;
  border-radius: 10px;
  background: #fbfdff;
  color: #102b43;
  font: inherit;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
#gc-auth-overlay #gc-login input:focus {
  border-color: #16b49f;
  box-shadow: 0 0 0 3px #16b49f28;
}
#gc-auth-overlay #gc-submit {
  width: 100%;
  height: 47px;
  margin-top: 3px;
  border: 0;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(100deg, #058cc6, #10b59c);
  font: inherit;
  font-weight: 750;
  cursor: pointer;
  box-shadow: 0 6px 18px #069eaf30;
}
#gc-auth-overlay #gc-submit:hover { filter: brightness(1.06); }
#gc-auth-overlay #gc-submit:disabled { opacity: .55; cursor: wait; }
#gc-auth-overlay #gc-login-status {
  margin: 14px 0 0;
  min-height: 19px;
  color: #aa493c;
  font-size: 12px;
  line-height: 1.45;
}
#gc-auth-overlay #gc-login-status.gc-auth-status-success { color: #178b72; }
#gc-auth-overlay .gc-auth-note {
  margin: 7px 0 0;
  color: #7d91a0;
  text-align: center;
  font-size: 11px;
  line-height: 1.5;
}
#gc-auth-overlay .gc-auth-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 81px;
  padding: 7px 26px;
  border-top: 1px solid #1c495b;
  background: linear-gradient(120deg, #08263b, #0d3548);
}
#gc-auth-overlay .gc-auth-footer span {
  color: #a5c1ce;
  font-size: 11px;
  white-space: nowrap;
}
#gc-auth-overlay .gc-auth-footer img {
  display: block;
  width: 122px;
  height: 70px;
  object-fit: contain;
}
@media (max-width: 470px) {
  #gc-auth-overlay { padding: 14px; }
  #gc-auth-overlay .gc-auth-card { border-radius: 17px; }
  #gc-auth-overlay .gc-auth-hero { padding: 24px 24px 21px; }
  #gc-auth-overlay .gc-auth-body { padding: 24px 25px 21px; }
  #gc-auth-overlay .gc-auth-footer { min-height: 72px; }
}