body.public-auth {
  min-height: 100vh;
  background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
}
.public-auth .public-card {
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
  border: 1px solid #eef2f7;
}
.public-auth .brand {
  font-weight: 600;
  color: #111827;
  text-decoration: none;
}
.public-auth .public-btn {
  background: #6366f1;
  border: none;
  color: #fff;
  border-radius: 8px;
  padding: 0.6rem 1rem;
}
.public-auth .public-btn:hover {
  background: #4f46e5;
}
.public-auth .muted-link {
  color: #6b7280;
}
.public-auth .muted-link a {
  color: #4f46e5;
  text-decoration: none;
}
.public-auth .muted-link a:hover {
  text-decoration: underline;
}
.btn-transparent {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  text-decoration: none;
  background: transparent;
  color: inherit;
  border: 1px solid transparent;
  border-radius: 6px;
  transition: background-color 150ms ease, border-color 150ms ease;
}

/* Hover */
.btn-transparent:hover,
.btn-transparent:focus {
  background-color: #ffffff;
  border-color: #cfcfcf;
}

/* Active */
.btn-transparent:active {
  transform: translateY(1px);
}

/* Disabled dạng link */
.btn-transparent.disabled {
  pointer-events: none;
  opacity: 0.6;
}