html {
  font-size: 14px;
}

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

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  background-color: #f5f7fb;
  color: #333;
}

.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;
}

.card {
  border-radius: 0.5rem;
  border: none;
}

.card-header {
  border-bottom-width: 1px;
}

.navbar-brand {
  font-size: 1.1rem;
  letter-spacing: 0.05em;
}

.form-label {
  font-weight: 500;
}

.required-field-label::after {
  content: " *";
  color: #dc3545;
}

.field-validation-error {
  font-size: 0.85rem;
}

.validation-summary-errors ul {
  margin-bottom: 0;
}

.progress {
  height: 0.75rem;
}