/**
 * Bootstrap 4 → 5.3.8 compatibility layer
 * Keeps existing BS4 markup/classes working without UI/markup rewrites.
 */

/* ---------- Grid gutters closer to BS4 (15px) ---------- */
.row {
  --bs-gutter-x: 30px;
  --bs-gutter-y: 0;
}

/* ---------- Spacing: ml/mr/pl/pr (BS4) ---------- */
.ml-0 { margin-left: 0 !important; }
.ml-1 { margin-left: 0.25rem !important; }
.ml-2 { margin-left: 0.5rem !important; }
.ml-3 { margin-left: 1rem !important; }
.ml-4 { margin-left: 1.5rem !important; }
.ml-5 { margin-left: 3rem !important; }
.ml-auto { margin-left: auto !important; }

.mr-0 { margin-right: 0 !important; }
.mr-1 { margin-right: 0.25rem !important; }
.mr-2 { margin-right: 0.5rem !important; }
.mr-3 { margin-right: 1rem !important; }
.mr-4 { margin-right: 1.5rem !important; }
.mr-5 { margin-right: 3rem !important; }
.mr-auto { margin-right: auto !important; }
.mr-10 { margin-right: 10px !important; }

.pl-0 { padding-left: 0 !important; }
.pl-1 { padding-left: 0.25rem !important; }
.pl-2 { padding-left: 0.5rem !important; }
.pl-3 { padding-left: 1rem !important; }
.pl-4 { padding-left: 1.5rem !important; }
.pl-5 { padding-left: 3rem !important; }

.pr-0 { padding-right: 0 !important; }
.pr-1 { padding-right: 0.25rem !important; }
.pr-2 { padding-right: 0.5rem !important; }
.pr-3 { padding-right: 1rem !important; }
.pr-4 { padding-right: 1.5rem !important; }
.pr-5 { padding-right: 3rem !important; }

/* ---------- Float / text alignment ---------- */
.float-left { float: left !important; }
.float-right { float: right !important; }
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }

/* ---------- Typography ---------- */
.font-weight-bold { font-weight: 700 !important; }
.font-weight-bolder { font-weight: bolder !important; }
.font-weight-normal { font-weight: 400 !important; }
.font-weight-light { font-weight: 300 !important; }
.font-weight-lighter { font-weight: lighter !important; }
.font-italic { font-style: italic !important; }

/* ---------- Forms (BS4 look) ---------- */
.form-group {
  margin-bottom: 1rem;
}

.form-control {
  display: block;
  width: 100%;
  height: calc(1.5em + 0.75rem + 2px);
  padding: 0.375rem 0.75rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: #495057;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid #ced4da;
  border-radius: 0.25rem;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
  color: #495057;
  background-color: #fff;
  border-color: #80bdff;
  outline: 0;
  box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

textarea.form-control {
  height: auto;
}

.form-control-sm {
  height: calc(1.5em + 0.5rem + 2px);
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  border-radius: 0.2rem;
}

.form-control-lg {
  height: calc(1.5em + 1rem + 2px);
  padding: 0.5rem 1rem;
  font-size: 1.25rem;
  border-radius: 0.3rem;
}

select.form-control {
  word-wrap: normal;
}

.custom-select,
.custom-select-sm {
  display: inline-block;
  width: 100%;
  height: calc(1.5em + 0.75rem + 2px);
  padding: 0.375rem 1.75rem 0.375rem 0.75rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: #495057;
  vertical-align: middle;
  background: #fff url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='4' height='5' viewBox='0 0 4 5'%3e%3cpath fill='%23343a40' d='M2 0L0 2h4zm0 5L0 3h4z'/%3e%3c/svg%3e") right 0.75rem center / 8px 10px no-repeat;
  border: 1px solid #ced4da;
  border-radius: 0.25rem;
  appearance: none;
}

.custom-select-sm {
  height: calc(1.5em + 0.5rem + 2px);
  padding-top: 0.25rem;
  padding-bottom: 0.25rem;
  padding-left: 0.5rem;
  font-size: 0.875rem;
}

.custom-control {
  position: relative;
  display: block;
  min-height: 1.5rem;
  padding-left: 1.5rem;
}

.custom-control-input {
  position: absolute;
  left: 0;
  z-index: -1;
  width: 1rem;
  height: 1.25rem;
  opacity: 0;
}

.custom-control-label {
  position: relative;
  margin-bottom: 0;
  vertical-align: top;
}

.custom-control-label::before {
  position: absolute;
  top: 0.25rem;
  left: -1.5rem;
  display: block;
  width: 1rem;
  height: 1rem;
  pointer-events: none;
  content: "";
  background-color: #fff;
  border: 1px solid #adb5bd;
}

.custom-checkbox .custom-control-label::before {
  border-radius: 0.25rem;
}

.custom-radio .custom-control-label::before {
  border-radius: 50%;
}

.form-row {
  display: flex;
  flex-wrap: wrap;
  margin-right: -5px;
  margin-left: -5px;
}

.form-row > .col,
.form-row > [class*="col-"] {
  padding-right: 5px;
  padding-left: 5px;
}

.no-gutters {
  margin-right: 0;
  margin-left: 0;
}

.no-gutters > .col,
.no-gutters > [class*="col-"] {
  padding-right: 0;
  padding-left: 0;
}

/* ---------- Input group (BS4 append/prepend) ---------- */
.input-group-append,
.input-group-prepend {
  display: flex;
}

.input-group-append .btn,
.input-group-prepend .btn,
.input-group-append .input-group-text,
.input-group-prepend .input-group-text {
  border-radius: 0.25rem;
}

.input-group > .input-group-prepend > .btn,
.input-group > .input-group-prepend > .input-group-text,
.input-group > .input-group-append:not(:last-child) > .btn,
.input-group > .input-group-append:not(:last-child) > .input-group-text,
.input-group > .input-group-append:last-child > .btn:not(:last-child):not(.dropdown-toggle),
.input-group > .input-group-append:last-child > .input-group-text:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group > .input-group-append > .btn,
.input-group > .input-group-append > .input-group-text,
.input-group > .input-group-prepend:not(:first-child) > .btn,
.input-group > .input-group-prepend:not(:first-child) > .input-group-text,
.input-group > .input-group-prepend:first-child > .btn:not(:first-child),
.input-group > .input-group-prepend:first-child > .input-group-text:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.input-group > .form-control:not(:last-child),
.input-group > .custom-select:not(:last-child) {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.input-group > .form-control:not(:first-child),
.input-group > .custom-select:not(:first-child) {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* ---------- Buttons ---------- */
.btn-block {
  display: block;
  width: 100%;
}

.btn-default {
  color: #212529;
  background-color: #f8f9fa;
  border-color: #f8f9fa;
}

.btn-default:hover {
  color: #212529;
  background-color: #e2e6ea;
  border-color: #dae0e5;
}

/* ---------- Badges (BS4 color classes) ---------- */
.badge-primary { color: #fff; background-color: #007bff; }
.badge-secondary { color: #fff; background-color: #6c757d; }
.badge-success { color: #fff; background-color: #28a745; }
.badge-danger { color: #fff; background-color: #dc3545; }
.badge-warning { color: #212529; background-color: #ffc107; }
.badge-info { color: #fff; background-color: #17a2b8; }
.badge-light { color: #212529; background-color: #f8f9fa; }
.badge-dark { color: #fff; background-color: #343a40; }
.badge-pill {
  padding-right: 0.6em;
  padding-left: 0.6em;
  border-radius: 10rem;
}

/* ---------- Close button (BS4 .close) ---------- */
.close {
  float: right;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: #000;
  text-shadow: 0 1px 0 #fff;
  opacity: 0.5;
  background: transparent;
  border: 0;
  padding: 0;
}

.close:hover {
  color: #000;
  text-decoration: none;
  opacity: 0.75;
}

button.close {
  padding: 0;
  background-color: transparent;
  border: 0;
  appearance: none;
}

/* ---------- Media object ---------- */
.media {
  display: flex;
  align-items: flex-start;
}

.media-body {
  flex: 1;
}

.media-heading {
  margin-top: 0;
  margin-bottom: 0.5rem;
}

/* ---------- Misc ---------- */
.sr-only,
.sr-only-focusable:not(:focus):not(:focus-within) {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.jumbotron {
  padding: 2rem 1rem;
  margin-bottom: 2rem;
  background-color: #e9ecef;
  border-radius: 0.3rem;
}

/* ---------- Modal close spacing like BS4 ---------- */
.modal-header .close {
  padding: 1rem;
  margin: -1rem -1rem -1rem auto;
}

/* ---------- Dropdown: keep BS4 toggle feel ---------- */
.dropdown-toggle::after {
  margin-left: 0.255em;
}

/* ---------- DataTables BS4 class hooks ---------- */
.dataTables_wrapper .custom-select,
.dataTables_wrapper .custom-select-sm,
.dataTables_wrapper .form-control,
.dataTables_wrapper .form-control-sm {
  display: inline-block;
  width: auto;
}

/* ---------- Keep card/border look closer to BS4 ---------- */
.card {
  border: 1px solid rgba(0, 0, 0, 0.125);
  border-radius: 0.25rem;
}

.btn {
  border-radius: 0.25rem;
}