/* Auth overlay — WomoHiking palette adaptation of the LakeTemp pattern.
   Public-data app: biometric + recovery-code paths only, no PIN UI. */

.auth-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(160deg, #0B1120, #122040 40%, #0C3547 70%, #0A2A1F);
  display: grid;
  place-items: center;
  padding: 1.5rem;
  z-index: 9999;
  animation: auth-fade-in 0.2s ease-out;
}
.auth-overlay.hidden { display: none; }
@keyframes auth-fade-in { from { opacity: 0; } to { opacity: 1; } }

.auth-box {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
  padding: 2rem 1.75rem;
  max-width: 360px;
  width: 100%;
  text-align: center;
}

.auth-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(160deg, #122040, #0C3547);
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin: 0 auto 1rem;
  font-size: 1.8rem;
}

.auth-box h2 {
  font-family: 'Playfair Display', serif;
  margin: 0 0 0.25rem;
  font-size: 1.4rem;
  font-weight: 900;
  color: #F9FAFB;
}
.auth-subtitle {
  margin: 0 0 1.25rem;
  color: var(--text-faint);
  font-size: 0.9rem;
}

.auth-error {
  background: #2A1515;
  color: #FCA5A5;
  border-radius: 8px;
  padding: 0.5rem 0.75rem;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  display: none;
}
.auth-error.visible { display: block; }

.auth-spinner {
  display: none;
  margin: 1rem auto 0;
  width: 22px;
  height: 22px;
  border: 2px solid var(--accent);
  border-top-color: transparent;
  border-radius: 50%;
  animation: auth-spin 0.6s linear infinite;
}
.auth-spinner.visible { display: block; }
@keyframes auth-spin { to { transform: rotate(360deg); } }

.auth-choices {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 0.25rem;
}

.auth-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s ease, transform 0.05s ease;
}
.auth-btn-primary {
  background: var(--accent);
  color: #fff;
}
.auth-btn-primary:hover { background: #2563EB; }
.auth-btn-primary:active { transform: scale(0.98); }
.auth-btn:disabled { opacity: 0.55; cursor: progress; }
.auth-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.auth-link {
  background: none;
  border: none;
  color: var(--text-faint);
  font-size: 0.85rem;
  text-decoration: underline;
  cursor: pointer;
  padding: 0.5rem;
  font-family: inherit;
}
.auth-link:hover { color: var(--text); }

body.auth-locked { overflow: hidden; }