.formulaire-contact {
    max-width: 880px;
    margin-bottom: 5rem;
}

.formulaire-contact .champ-conteneur {
    display: flex;
    flex-direction: column;
    font-size: 1.25rem;
    margin-bottom: 2rem;
}

.formulaire-contact .label-champ {
    margin-bottom: 0.5rem;
}

.formulaire-contact .champ {
    padding: 1rem 0.5rem;
    border: 1px solid #707070;
    border-radius: 5px;
    font-family: inherit;
}

.formulaire-contact .liste-choix {
    display: flex;
    align-items: center;
    column-gap: 4rem;
    font-size: 1.05rem;
}

.formulaire-contact .liste-choix .choix {
    display: flex;
    align-items: center;
    column-gap: 0.6rem;
    white-space: nowrap;
}

.formulaire-contact .liste-choix input[type="radio"] {
    --active-color: #1453ff;
    --border-color: #999;

    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;

    width: 24px;
    height: 24px;
    border-radius: 50%;
    margin: 0;
    flex: 1 0 auto;
    border: 2px solid var(--border-color);
    transition: 150ms border ease-in 0.15s, 0.2s background ease-in;
    background: transparent;
    position: relative;
    background-color: #fff;

    &:hover {
        border-color: oklch(from var(--border-color) calc(l * 0.7) c h);

        &:checked {
            background: oklch(from var(--active-color) calc(l * .7) c h);
            outline-color: oklch(from var(--active-color) calc(l * .7) c h);
        }
    }

    &:checked {
        border: 4px solid #fff;
        background-color: var(--active-color);
        outline: 2px solid var(--border-color);
    }

    &:focus {
        outline: 2px solid var(--active-color);
    }

    &:focus-visible::before {
        content: "";
        display: block;
        position: absolute;
        inset: -0.55rem;
        border-radius: 0.2rem;
        border: 2px solid black;
    }
}

.formulaire-contact .btn-envoi {
    background-color: #1453ff;
    font-size: 1.75rem;
    padding: 0.9rem;
    color: white;
    border-radius: 5px;
    margin-top: 2.3rem;
    transition: background-color 350ms;
    border: none;
    outline-offset: 0.2rem;

    &:where(:hover, :focus) {
        background-color: #0133bb;
    }
}

.banniere-alerte {
    border: 1px solid transparent;
    border-radius: 5px;
    padding: 1.25rem 0;
    text-align: center;
    margin: 0.95rem;
    font-size: 1.25rem;
    transform: translateY(0);
    transition: transform 300ms;

    @starting-style {
        transform: translateY(-300%);
    }

    &.succes {
        --base-color: #155724;
    }

    &.erreur {
        --base-color: #721C24;
    }

    border-color: var(--base-color);
    background-color: oklch(from var(--base-color) calc(l + 15) c h);
    color: var(--base-color);
}