html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}
/* 移除 main 與 footer 之間的空白 */
main {
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
}

footer {
    margin-top: 0 !important;
}

@media (max-width: 576px) {
    .navbar-brand img {
        height: 40px !important;
    }

    .hero-logo {
        max-height: 160px !important;
    }
}