.auth-shell {
  min-height: calc(100vh - 180px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 0 12px;
}
.auth-card {
  width: min(720px, 92vw);
  padding: 40px 46px 34px;
  border-radius: 28px;
  background:
    radial-gradient(420px 180px at 88% -6%, rgba(167, 139, 250, 0.26) 0%, transparent 56%),
    linear-gradient(180deg, rgba(34, 24, 62, 0.97) 0%, rgba(20, 14, 39, 0.98) 100%);
  color: #f5f3ff;
  border: 1px solid rgba(139, 92, 246, 0.18);
  box-shadow: 0 24px 56px rgba(39, 21, 87, 0.34);
}
.auth-brand {
  text-align: center;
  margin-bottom: 28px;
}
.auth-brand-title {
  margin: 0;
  font-size: 42px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: #f5f3ff;
}
.auth-brand-subtitle {
  margin: 12px 0 0;
  font-size: 18px;
  color: rgba(221, 214, 254, 0.82);
  font-weight: 700;
}
.auth-card label {
  margin-bottom: 10px;
  color: rgba(233, 213, 255, 0.88);
  font-size: 14px;
  letter-spacing: 0.04em;
}
.auth-card input {
  height: 64px;
  padding: 14px 18px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.16);
  background: rgba(255,255,255,0.92);
  color: #1f1637;
  -webkit-text-fill-color: #1f1637;
  font-size: 18px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.55);
}
.auth-card input::placeholder {
  color: rgba(76, 57, 113, 0.42);
}
.auth-card input:focus {
  border-color: rgba(167, 139, 250, 0.82);
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.18);
}
.auth-actions {
  margin-top: 18px;
}
.auth-error {
  min-height: 20px;
  margin-top: 4px;
  color: #fca5a5;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}
.auth-login-btn {
  width: 100%;
  justify-content: center;
  min-height: 68px;
  border-radius: 18px;
  background: linear-gradient(180deg, #8b5cf6 0%, #7c3aed 100%);
  color: #f8fafc;
  font-size: 22px;
  font-weight: 800;
  box-shadow: 0 14px 28px rgba(124, 58, 237, 0.28);
}
.auth-login-btn:hover {
  box-shadow: 0 18px 30px rgba(124, 58, 237, 0.34);
}