html {
  font-size: 15px;
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
  background-color: #f5f7fa;
}

.navbar-brand {
  font-weight: 600;
}

.card {
  border: none;
  border-radius: 0.5rem;
  transition: transform 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
}

.display-6 {
  font-weight: 700;
}

.table-responsive {
  background: #fff;
  border-radius: 0.5rem;
  padding: 0.5rem;
  box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.table thead.table-dark th {
  vertical-align: middle;
}

.form-control:focus,
.form-select:focus {
  border-color: #86b7fe;
  box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

.was-validated .form-control:invalid,
.form-control.is-invalid {
  border-color: #dc3545;
}

.pagination .page-link {
  color: #0d6efd;
}

.pagination .page-item.active .page-link {
  background-color: #0d6efd;
  border-color: #0d6efd;
}

.modal-header {
  background-color: #f8f9fa;
}

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

@media (max-width: 576px) {
  .display-6 {
    font-size: 1.5rem;
  }
  .table-responsive {
    padding: 0.25rem;
  }
}

@media print {
  .navbar, footer, .btn, form {
    display: none !important;
  }
}