html,
body {
    height: 100%;
}

/* Champs groupés avec bordures arrondies adaptatives */
.form-field-start .form-control {
    margin-bottom: -1px;
    border-bottom-right-radius: 0;
    border-bottom-left-radius: 0;
}

.form-field-middle .form-control {
    margin-bottom: -1px;
    border-radius: 0;
}

.form-field-end .form-control {
    margin-bottom: 10px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

/* Champs uniques ou non groupés gardent tous leurs arrondis */
.form-field-single .form-control {
    margin-bottom: 10px;
    border-radius: var(--bs-border-radius);
}
.form-floating > .form-control,
.form-floating > .form-control-plaintext,
.form-floating > .form-select {
    height: calc(3.5rem + calc(var(--bs-border-width) * 2));
    min-height: calc(3.5rem + calc(var(--bs-border-width) * 2));
    line-height: 1.25;
}

.form-floating > label {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
    max-width: 100%;
    height: 100%;
    padding: 1rem 0.75rem;
    overflow: hidden;
    color: rgba(var(--bs-body-color-rgb), 0.65);
    text-align: start;
    text-overflow: ellipsis;
    white-space: nowrap;
    pointer-events: none;
    border: var(--bs-border-width) solid transparent;
    transform-origin: 0 0;
    transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
}

@media (min-width: 576px) {
    .form-signin {
        max-width: 450px;
        padding: 1rem;
    }
}

.form-floating > .form-control,
.form-floating > .form-control-plaintext {
    padding: 1rem 0.75rem;
}

.form-control:focus {
    color: var(--bs-body-color);
    background-color: var(--bs-body-bg);
    border-color: #86b7fe;
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

input:focus {
    position: relative;
    z-index: 2;
}

.m-auto {
    margin: auto !important;
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    opacity: .65;
    transform: scale(.85) translateY(-.5rem) translateX(.15rem);
}