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;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}

.navbar-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 2rem;
}

.navbar-center .nav-link {
  transition: opacity 0.2s ease;
}

.navbar-center .nav-link:hover {
  opacity: 0.8;
}

/* Loading Overlay Styles */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.loading-overlay.show {
  opacity: 1;
  visibility: visible;
}

.loading-spinner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.spinner {
  border: 4px solid #f3f3f3;
  border-top: 4px solid #0066cc;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text {
  font-size: 1.125rem;
  color: #333;
  font-weight: 500;
}

/* Help Popup Styles */
.help-popup-container {
  display: inline-block;
  margin-left: 0.5rem;
}

.help-btn {
  padding: 0.25rem 0.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  width: 24px;
  height: 24px;
  cursor: help;
  transition: all 0.2s ease;
}

.help-btn:hover {
  background-color: #e7f1ff;
  border-color: #0056b3;
}

.help-btn:focus {
  box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

/* Popover styling for help content */
.popover {
  max-width: 400px;
}

.popover-header {
  background-color: #0066cc;
  color: white;
  font-weight: 600;
  border: none;
}

.popover-body {
  padding: 0.75rem;
  line-height: 1.5;
  color: #333;
}