:root {
  --bf-private-brand-primary: #19b3ff;
  --bf-private-brand-primary-dark: #1092d8;
  --bf-private-brand-navy: #004b70;
  --bf-private-surface: #ffffff;
  --bf-private-text: #102437;
  --bf-private-text-muted: #576777;
  --bf-private-border: rgba(0, 75, 112, 0.12);
  --bf-private-shadow: 0 24px 42px rgba(0, 38, 64, 0.16);
  --bf-private-radius: 8px;
}

.auth-overlay-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  z-index: 1000;
}

.auth-card {
  width: min(440px, 100%);
  border-radius: var(--bf-private-radius);
  background: var(--bf-private-surface);
  padding: 32px 28px;
  box-shadow: var(--bf-private-shadow);
  text-align: center;
}

.auth-card h1 {
  margin: 0 0 12px;
  font-size: 24px;
  color: var(--bf-private-brand-navy);
}

.auth-card p {
  margin: 0 0 20px;
  color: var(--bf-private-text-muted);
}

.auth-error {
  margin: 0 0 16px;
  padding: 12px 14px;
  border-radius: var(--bf-private-radius);
  color: #b00020;
  background: rgba(176, 0, 32, 0.08);
  border: 1px solid rgba(176, 0, 32, 0.24);
  font-size: 14px;
}

.google-signin-button {
  display: flex;
  justify-content: center;
}

.local-auth-bypass-button {
  border-radius: 999px;
  border: 1px solid rgba(0, 75, 112, 0.26);
  background: #0a5f89;
  color: #fff;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease;
}

.local-auth-bypass-button:hover {
  background: #084f73;
}

.dev-auth-banner {
  margin: 0;
  padding: 12px 14px;
  border-radius: var(--bf-private-radius);
  border: 1px solid rgba(240, 138, 36, 0.35);
  background: rgba(255, 193, 127, 0.25);
  color: #6f4206;
  font-size: 14px;
  font-weight: 600;
}

.hidden {
  display: none !important;
}

.nav-user {
  color: var(--bf-private-text-muted);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 0;
}

.signout-button {
  border-radius: 999px;
  border: 1px solid rgba(0, 75, 112, 0.26);
  background: transparent;
  color: var(--bf-private-brand-navy);
  padding: 6px 16px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.2s ease, border 0.2s ease, background 0.2s ease;
}

.signout-button:hover {
  border-color: var(--bf-private-brand-primary);
  color: var(--bf-private-brand-primary-dark);
  background: rgba(199, 233, 253, 0.24);
}

.signout-button:focus-visible {
  outline: 2px solid var(--bf-private-brand-primary);
  outline-offset: 2px;
}

.bf-private-toolbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 16px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--bf-private-border);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
}

.bf-private-toolbar__home {
  color: var(--bf-private-brand-navy);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.bf-private-toolbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.bf-private-auth-links {
  margin: 16px 0 0;
}

@media (max-width: 640px) {
  .bf-private-toolbar {
    padding: 12px 16px;
  }
}