.auth-shell {
  position: relative; z-index: 2; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 40px 24px;
}
.auth-card {
  width: 100%; max-width: 440px;
  background: rgba(4,6,16,0.94);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(240,169,44,0.35);
  border-radius: 16px;
  padding: 38px 34px 30px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.85), 0 0 60px rgba(240,169,44,0.15);
  position: relative;
  z-index: 3;
}
.auth-brand {
  text-align: center; font-family: var(--font-display);
  font-size: 28px; letter-spacing: 8px; margin-bottom: 6px;
}
.auth-sub {
  text-align: center; font-size: 11px; letter-spacing: 4px;
  color: var(--ink-2); text-transform: uppercase; margin-bottom: 30px;
}
.tabs {
  display: flex; gap: 4px; padding: 4px;
  background: rgba(10,14,30,0.6); border-radius: 10px; margin-bottom: 26px;
  border: 1px solid rgba(240,169,44,0.12);
}
.tab {
  flex: 1; padding: 10px; text-align: center; border-radius: 8px;
  font-size: 12px; letter-spacing: 3px; text-transform: uppercase;
  color: var(--ink-2); cursor: pointer; transition: all .18s;
}
.tab.active {
  background: linear-gradient(135deg, rgba(240,169,44,0.2), rgba(255,87,34,0.12));
  color: var(--gold-hot); box-shadow: inset 0 0 20px rgba(240,169,44,0.15);
}
.form-row { margin-bottom: 16px; }
.form-actions { margin-top: 22px; }
.form-actions .btn { width: 100%; padding: 14px; }

.auth-foot {
  margin-top: 24px; padding-top: 20px;
  border-top: 1px solid rgba(240,169,44,0.1);
  display: flex; justify-content: space-between;
  font-size: 11px; color: var(--ink-2); letter-spacing: 1px;
}

.err-msg { color: #ff8a97; font-size: 12px; margin-top: 8px; min-height: 18px; }