/*
 * Bootstrap 4 -> 5 fallback helpers.
 *
 * Include AFTER Bootstrap 5 to keep common Bootstrap 4 classnames working.
 * Add additional mappings here as you compare your UI against Bootstrap 5.
 */

/* Utilities removed or renamed in Bootstrap 5 */
.font-weight-light { font-weight: 300 !important; }
.font-weight-lighter { font-weight: lighter !important; }
.font-weight-normal { font-weight: 400 !important; }
.font-weight-bold { font-weight: 700 !important; }
.font-weight-bolder { font-weight: bolder !important; }

.text-monospace {
    font-family: var(--bs-font-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);
}

.badge-pill {
    padding-right: 0.6em;
    padding-left: 0.6em;
    border-radius: 10rem;
}

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

.btn-block + .btn-block {
    margin-top: 0.5rem;
}

/* Screen-reader utilities renamed to .visually-hidden in Bootstrap 5 */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.sr-only-focusable:active,
.sr-only-focusable:focus {
    position: static;
    width: auto;
    height: auto;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* Form layout helpers removed in Bootstrap 5 */
.form-group {
    margin-bottom: 1rem;
}

.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;
}

.form-inline {
    display: flex;
    flex-flow: row wrap;
    align-items: center;
}

.form-inline .form-control {
    display: inline-block;
    width: auto;
    vertical-align: middle;
}

.form-inline .form-control-plaintext {
    display: inline-block;
}

.form-inline .custom-select,
.form-inline .input-group {
    width: auto;
}

.form-inline .form-check {
    display: flex;
    align-items: center;
    justify-content: center;
    width: auto;
    padding-left: 0;
}

.form-inline .form-check-input {
    position: relative;
    margin-top: 0;
    margin-right: 0.25rem;
    margin-left: 0;
}

.form-inline .form-check-label {
    margin-bottom: 0;
}

/* Input group append/prepend removed in Bootstrap 5 */
.input-group-prepend,
.input-group-append {
    display: flex;
}

.input-group-prepend .btn,
.input-group-append .btn,
.input-group-prepend .input-group-text,
.input-group-append .input-group-text {
    border-radius: 0;
}

/* Custom form controls renamed in Bootstrap 5 (partial fallbacks) */
.custom-select {
    display: inline-block;
    width: 100%;
    height: calc(1.5em + 0.75rem + 2px);
    padding: 0.375rem 1.75rem 0.375rem 0.75rem;
    line-height: 1.5;
    vertical-align: middle;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
}

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

.custom-control-input {
    position: absolute;
    z-index: -1;
    opacity: 0;
}

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

/* Alignment utilities renamed in Bootstrap 5 */
.text-left { text-align: left !important; }
.text-right { text-align: right !important; }
.text-justify { text-align: justify !important; }

.float-left { float: left !important; }
.float-right { float: right !important; }
.float-none { float: none !important; }

/* Left/Right utility aliases for Bootstrap 5 (LTR only) */
.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; }

.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; }

@media (min-width: 576px) {
    .pl-sm-0 { padding-left: 0 !important; }
    .pl-sm-1 { padding-left: 0.25rem !important; }
    .pl-sm-2 { padding-left: 0.5rem !important; }
    .pl-sm-3 { padding-left: 1rem !important; }
    .pl-sm-4 { padding-left: 1.5rem !important; }
    .pl-sm-5 { padding-left: 3rem !important; }
    .pr-sm-0 { padding-right: 0 !important; }
    .pr-sm-1 { padding-right: 0.25rem !important; }
    .pr-sm-2 { padding-right: 0.5rem !important; }
    .pr-sm-3 { padding-right: 1rem !important; }
    .pr-sm-4 { padding-right: 1.5rem !important; }
    .pr-sm-5 { padding-right: 3rem !important; }
    .ml-sm-0 { margin-left: 0 !important; }
    .ml-sm-1 { margin-left: 0.25rem !important; }
    .ml-sm-2 { margin-left: 0.5rem !important; }
    .ml-sm-3 { margin-left: 1rem !important; }
    .ml-sm-4 { margin-left: 1.5rem !important; }
    .ml-sm-5 { margin-left: 3rem !important; }
    .ml-sm-auto { margin-left: auto !important; }
    .mr-sm-0 { margin-right: 0 !important; }
    .mr-sm-1 { margin-right: 0.25rem !important; }
    .mr-sm-2 { margin-right: 0.5rem !important; }
    .mr-sm-3 { margin-right: 1rem !important; }
    .mr-sm-4 { margin-right: 1.5rem !important; }
    .mr-sm-5 { margin-right: 3rem !important; }
    .mr-sm-auto { margin-right: auto !important; }
}

@media (min-width: 768px) {
    .pl-md-0 { padding-left: 0 !important; }
    .pl-md-1 { padding-left: 0.25rem !important; }
    .pl-md-2 { padding-left: 0.5rem !important; }
    .pl-md-3 { padding-left: 1rem !important; }
    .pl-md-4 { padding-left: 1.5rem !important; }
    .pl-md-5 { padding-left: 3rem !important; }
    .pr-md-0 { padding-right: 0 !important; }
    .pr-md-1 { padding-right: 0.25rem !important; }
    .pr-md-2 { padding-right: 0.5rem !important; }
    .pr-md-3 { padding-right: 1rem !important; }
    .pr-md-4 { padding-right: 1.5rem !important; }
    .pr-md-5 { padding-right: 3rem !important; }
    .ml-md-0 { margin-left: 0 !important; }
    .ml-md-1 { margin-left: 0.25rem !important; }
    .ml-md-2 { margin-left: 0.5rem !important; }
    .ml-md-3 { margin-left: 1rem !important; }
    .ml-md-4 { margin-left: 1.5rem !important; }
    .ml-md-5 { margin-left: 3rem !important; }
    .ml-md-auto { margin-left: auto !important; }
    .mr-md-0 { margin-right: 0 !important; }
    .mr-md-1 { margin-right: 0.25rem !important; }
    .mr-md-2 { margin-right: 0.5rem !important; }
    .mr-md-3 { margin-right: 1rem !important; }
    .mr-md-4 { margin-right: 1.5rem !important; }
    .mr-md-5 { margin-right: 3rem !important; }
    .mr-md-auto { margin-right: auto !important; }
}

@media (min-width: 992px) {
    .pl-lg-0 { padding-left: 0 !important; }
    .pl-lg-1 { padding-left: 0.25rem !important; }
    .pl-lg-2 { padding-left: 0.5rem !important; }
    .pl-lg-3 { padding-left: 1rem !important; }
    .pl-lg-4 { padding-left: 1.5rem !important; }
    .pl-lg-5 { padding-left: 3rem !important; }
    .pr-lg-0 { padding-right: 0 !important; }
    .pr-lg-1 { padding-right: 0.25rem !important; }
    .pr-lg-2 { padding-right: 0.5rem !important; }
    .pr-lg-3 { padding-right: 1rem !important; }
    .pr-lg-4 { padding-right: 1.5rem !important; }
    .pr-lg-5 { padding-right: 3rem !important; }
    .ml-lg-0 { margin-left: 0 !important; }
    .ml-lg-1 { margin-left: 0.25rem !important; }
    .ml-lg-2 { margin-left: 0.5rem !important; }
    .ml-lg-3 { margin-left: 1rem !important; }
    .ml-lg-4 { margin-left: 1.5rem !important; }
    .ml-lg-5 { margin-left: 3rem !important; }
    .ml-lg-auto { margin-left: auto !important; }
    .mr-lg-0 { margin-right: 0 !important; }
    .mr-lg-1 { margin-right: 0.25rem !important; }
    .mr-lg-2 { margin-right: 0.5rem !important; }
    .mr-lg-3 { margin-right: 1rem !important; }
    .mr-lg-4 { margin-right: 1.5rem !important; }
    .mr-lg-5 { margin-right: 3rem !important; }
    .mr-lg-auto { margin-right: auto !important; }
}

@media (min-width: 1200px) {
    .pl-xl-0 { padding-left: 0 !important; }
    .pl-xl-1 { padding-left: 0.25rem !important; }
    .pl-xl-2 { padding-left: 0.5rem !important; }
    .pl-xl-3 { padding-left: 1rem !important; }
    .pl-xl-4 { padding-left: 1.5rem !important; }
    .pl-xl-5 { padding-left: 3rem !important; }
    .pr-xl-0 { padding-right: 0 !important; }
    .pr-xl-1 { padding-right: 0.25rem !important; }
    .pr-xl-2 { padding-right: 0.5rem !important; }
    .pr-xl-3 { padding-right: 1rem !important; }
    .pr-xl-4 { padding-right: 1.5rem !important; }
    .pr-xl-5 { padding-right: 3rem !important; }
    .ml-xl-0 { margin-left: 0 !important; }
    .ml-xl-1 { margin-left: 0.25rem !important; }
    .ml-xl-2 { margin-left: 0.5rem !important; }
    .ml-xl-3 { margin-left: 1rem !important; }
    .ml-xl-4 { margin-left: 1.5rem !important; }
    .ml-xl-5 { margin-left: 3rem !important; }
    .ml-xl-auto { margin-left: auto !important; }
    .mr-xl-0 { margin-right: 0 !important; }
    .mr-xl-1 { margin-right: 0.25rem !important; }
    .mr-xl-2 { margin-right: 0.5rem !important; }
    .mr-xl-3 { margin-right: 1rem !important; }
    .mr-xl-4 { margin-right: 1.5rem !important; }
    .mr-xl-5 { margin-right: 3rem !important; }
    .mr-xl-auto { margin-right: auto !important; }
}

/* Gutters alias */
.no-gutters {
    margin-right: 0;
    margin-left: 0;
}

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

/* Border utilities renamed in Bootstrap 5 */
.border-left {
    border-left: 1px solid var(--bs-border-color, #dee2e6) !important;
}

.border-right {
    border-right: 1px solid var(--bs-border-color, #dee2e6) !important;
}

.border-left-0 { border-left: 0 !important; }
.border-right-0 { border-right: 0 !important; }

/* Border radius aliases */
.rounded-sm { border-radius: 0.2rem !important; }
.rounded-lg { border-radius: 0.3rem !important; }

/* Font style aliases */
.font-style-normal { font-style: normal !important; }
.font-style-italic { font-style: italic !important; }

/* Badge color aliases */
.badge-primary { color: #fff; background-color: var(--bs-primary, #0d6efd); }
.badge-secondary { color: #fff; background-color: var(--bs-secondary, #6c757d); }
.badge-success { color: #fff; background-color: var(--bs-success, #198754); }
.badge-danger { color: #fff; background-color: var(--bs-danger, #dc3545); }
.badge-warning { color: #212529; background-color: var(--bs-warning, #ffc107); }
.badge-info { color: #fff; background-color: var(--bs-info, #0dcaf0); }
.badge-light { color: #212529; background-color: var(--bs-light, #f8f9fa); }
.badge-dark { color: #fff; background-color: var(--bs-dark, #212529); }

/* Media object removed in Bootstrap 5 */
.media {
    display: flex;
    align-items: flex-start;
}

.media-body {
    flex: 1 1 auto;
}

/* Embed responsive helpers removed in Bootstrap 5 */
.embed-responsive {
    position: relative;
    display: block;
    width: 100%;
    padding: 0;
    overflow: hidden;
}

.embed-responsive::before {
    display: block;
    content: "";
}

.embed-responsive .embed-responsive-item,
.embed-responsive iframe,
.embed-responsive embed,
.embed-responsive object,
.embed-responsive video {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.embed-responsive-21by9::before { padding-top: 42.8571428571%; }
.embed-responsive-16by9::before { padding-top: 56.25%; }
.embed-responsive-4by3::before { padding-top: 75%; }
.embed-responsive-1by1::before { padding-top: 100%; }

/* Jumbotron removed in Bootstrap 5 */
.jumbotron {
    padding: 2rem 1rem;
    margin-bottom: 2rem;
    background-color: var(--bs-light, #f8f9fa);
    border-radius: 0.3rem;
}

@media (min-width: 576px) {
    .jumbotron {
        padding: 4rem 2rem;
    }
}