.login-stage{
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.crest-logos{ margin-bottom: 6px; filter: drop-shadow(0 0 18px rgba(212,175,55,.35)); animation: floaty 6s ease-in-out infinite; }
@keyframes floaty{ 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(-8px);} }

.login-card{
  position: relative;
  width: min(420px, 92vw);
  padding: 46px 40px 34px;
  text-align: center;
  background: linear-gradient(180deg, rgba(53,12,28,.55), rgba(23,10,36,.75));
  border: 1px solid rgba(212,175,55,.28);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow:
    0 30px 80px -20px rgba(0,0,0,.65),
    0 0 0 1px rgba(255,255,255,.02) inset,
    0 1px 0 rgba(255,255,255,.06) inset;
}

.eyebrow{
  margin: 0 0 10px;
  font-size: .68rem;
  letter-spacing: .32em;
  text-transform: uppercase;
  color: var(--gold-400);
  font-weight: 600;
}

.login-card h1{
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2.1rem, 6vw, 2.6rem);
  color: var(--cream);
  letter-spacing: .01em;
}

.subhead{
  margin: 14px auto 0;
  max-width: 320px;
  font-family: var(--script);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--cream-dim);
  line-height: 1.5;
}

.field{
  text-align: left;
  margin-bottom: 20px;
}
.field label{
  display: block;
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}
.field input{
  width: 100%;
  padding: 13px 16px;
  font-family: var(--sans);
  font-size: .95rem;
  color: var(--cream);
  background: rgba(0,0,0,.25);
  border: 1px solid rgba(212,175,55,.22);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color .3s ease, box-shadow .3s ease, background .3s ease;
}
.field input::placeholder{ color: rgba(214,201,224,.35); }
.field input:focus{
  border-color: var(--gold-500);
  background: rgba(0,0,0,.35);
  box-shadow: 0 0 0 3px rgba(212,175,55,.14);
}

.pass-wrap{ position: relative; }
.pass-wrap input{ padding-right: 44px; }
.toggle-pass{
  position: absolute;
  top: 50%;
  right: 10px;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 6px;
  display: flex;
  transition: color .25s ease;
}
.toggle-pass:hover{ color: var(--gold-400); }

.error-msg{
  display: none;
  margin: -6px 0 16px;
  padding: 10px 12px;
  font-size: .82rem;
  color: #ffd9d9;
  background: rgba(140,20,30,.28);
  border: 1px solid rgba(220,80,90,.4);
  border-radius: var(--radius-sm);
  text-align: left;
}
.error-msg.show{ display: block; animation: fadeIn .3s ease; }

.login-card.shake{ animation: shake .5s var(--ease-lux); }
@keyframes shake{
  10%,90%{ transform: translateX(-1px); }
  20%,80%{ transform: translateX(3px); }
  30%,50%,70%{ transform: translateX(-7px); }
  40%,60%{ transform: translateX(7px); }
}
@keyframes fadeIn{ from{ opacity:0; transform: translateY(-4px);} to{ opacity:1; transform: translateY(0);} }

.footnote{
  margin: 26px 0 0;
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--muted);
  text-transform: uppercase;
}

.tiny-credit{
  margin-top: 30px;
  font-size: .72rem;
  color: rgba(182,168,196,.55);
  letter-spacing: .04em;
}

/* success transition */
.login-stage.authorizing .login-card{
  animation: cardOut .7s var(--ease-lux) forwards;
}
@keyframes cardOut{
  to{ opacity: 0; transform: translateY(-14px) scale(.97); filter: blur(6px); }
}
.login-stage.authorizing .crest-logos{
  animation: crestOut .7s var(--ease-lux) forwards;
}
@keyframes crestOut{
  to{ opacity: 0; transform: scale(1.4) rotate(20deg); filter: blur(6px); }
}

#submit-btn.loading span{ visibility: hidden; }
#submit-btn.loading{ pointer-events: none; }
#submit-btn.loading::after{
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid rgba(13,6,17,.35);
  border-top-color: var(--ink);
  animation: spin .7s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }