html.auth-locked .site-content {
  display: none;
}

html:not(.auth-unlocked) .auth-gate {
  display: flex;
}

html.auth-unlocked .auth-gate {
  display: none;
}

.auth-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  padding-top: calc(var(--safe-top) + var(--space-md));
  padding-bottom: calc(var(--safe-bottom) + var(--space-md));
  background:
    radial-gradient(ellipse 70% 50% at 50% 20%, rgba(45, 212, 191, 0.1) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 80%, rgba(167, 139, 250, 0.08) 0%, transparent 60%),
    rgba(10, 10, 15, 0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.auth-card {
  width: min(100%, 400px);
  padding: var(--space-2xl);
  text-align: center;
  animation: authFadeIn var(--duration-slow) var(--ease-out);
}

@keyframes authFadeIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.auth-card.shake {
  animation: authShake 0.45s var(--ease-out);
}

@keyframes authShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
}

.auth-eyebrow {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--accent-teal);
  letter-spacing: 0.04em;
  margin-bottom: var(--space-sm);
}

.auth-eyebrow span {
  color: var(--text-primary);
}

.auth-title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-sm);
}

.auth-subtitle {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  text-align: left;
}

.auth-field label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
}

.auth-field input {
  width: 100%;
  min-height: var(--touch-min);
  padding: 0.75rem 1rem;
  font-family: inherit;
  font-size: var(--text-base);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: var(--glass-radius-sm);
  transition: border-color var(--duration-fast) var(--ease-out), box-shadow var(--duration-fast);
}

.auth-field input:focus {
  outline: none;
  border-color: rgba(45, 212, 191, 0.45);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.12);
}

.auth-remember {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--text-secondary);
  cursor: pointer;
  min-height: var(--touch-min);
}

.auth-remember input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-teal);
  cursor: pointer;
}

.auth-error {
  font-size: var(--text-sm);
  color: #f87171;
  text-align: center;
  min-height: 1.25rem;
}

.auth-form .btn-primary {
  width: 100%;
  margin-top: var(--space-xs);
}

.auth-note {
  margin-top: var(--space-lg);
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: 1.5;
}

.auth-gate.leaving {
  animation: authLeave var(--duration-normal) var(--ease-out) forwards;
}

@keyframes authLeave {
  to {
    opacity: 0;
    visibility: hidden;
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-card,
  .auth-gate.leaving {
    animation: none;
  }
}