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;
  background-color: #f8f9fa;
}

.footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  white-space: nowrap;
  line-height: 60px;
}

/* Custom styles for Patch Calculator */
.card {
  border: none;
  border-radius: 15px;
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  transform: translateY(-2px);
}

.card-header {
  border-radius: 15px 15px 0 0 !important;
  border-bottom: none;
}

.form-control, .form-select {
  border-radius: 10px;
  border: 2px solid #e9ecef;
  transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
  border-color: #0d6efd;
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.btn {
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(45deg, #0d6efd, #0b5ed7);
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(45deg, #0b5ed7, #0a58ca);
  transform: translateY(-1px);
}

.alert {
  border-radius: 10px;
  border: none;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
}

.navbar-nav .nav-link {
  font-weight: 500;
  transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
  transform: translateY(-1px);
}

/* Results styling */
.text-success {
  color: #198754 !important;
}

.text-info {
  color: #0dcaf0 !important;
}

.text-primary {
  color: #0d6efd !important;
}

/* Loading animation */
.spinner-border-sm {
  width: 1rem;
  height: 1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .container {
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .card-body {
    padding: 1rem;
  }
  
  .btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
  }
}

/* Custom animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card {
  animation: fadeIn 0.5s ease-out;
}

/* Material type icons */
.fa-fabric::before {
  content: "\f553"; /* Using a similar icon */
}

/* Enhanced form styling */
.form-label {
  font-weight: 600;
  color: #495057;
  margin-bottom: 0.5rem;
}

.form-control::placeholder {
  color: #6c757d;
  opacity: 0.7;
}

/* Success result styling */
.bg-success {
  background: linear-gradient(45deg, #198754, #157347) !important;
}

.bg-primary {
  background: linear-gradient(45deg, #0d6efd, #0b5ed7) !important;
}

.bg-info {
  background: linear-gradient(45deg, #0dcaf0, #0aa2c0) !important;
}