.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: #f2c94c;
    --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;
}

.formulaire-contact .liste-choix input[type="radio"]:hover {
    border-color: oklch(from var(--border-color) calc(l * 0.7) c h);
}

.formulaire-contact .liste-choix input[type="radio"]:hover:checked {
    background: oklch(from var(--active-color) calc(l * .7) c h);
    outline-color: oklch(from var(--active-color) calc(l * .7) c h);
}

.formulaire-contact .liste-choix input[type="radio"]:checked {
    border: 4px solid #fff;
    background-color: var(--active-color);
    outline: 2px solid var(--border-color);
}

.formulaire-contact .liste-choix input[type="radio"]:focus {
    outline: 2px solid var(--active-color);
}

.formulaire-contact .liste-choix input[type="radio"]: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: #f2c94c;
    font-size: 1.75rem;
    padding: 0.9rem;
    color: #333;
    border-radius: 5px;
    margin-top: 2.3rem;
    transition: background-color 350ms;
    border: none;
    outline-offset: 0.2rem;
    position: relative;
    z-index: 0;
}

.formulaire-contact .btn-envoi:hover,
.formulaire-contact .btn-envoi:focus {
    background-color: #d4b33d;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(242, 201, 76, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(242, 201, 76, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(242, 201, 76, 0);
    }
}

.formulaire-contact .champ:focus {
    border-color: #f2c94c;
    box-shadow: 0 0 8px #f2c94c88;
    outline: none;
    transition: box-shadow 300ms ease-in-out;
}

.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;
    animation: slideDown 0.4s ease forwards;
}

.banniere-alerte.succes {
    --base-color: #155724;
}

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

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

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.fade-slide-up {
    opacity: 0;
    transform: translateY(20px);
    animation-fill-mode: forwards;
    animation-timing-function: ease-out;
    animation-duration: 0.7s;
    animation-name: fadeSlideUp;
}

@keyframes fadeSlideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-slide-up:nth-child(1) {
    animation-delay: 0.1s;
}

.fade-slide-up:nth-child(2) {
    animation-delay: 0.3s;
}

.fade-slide-up:nth-child(3) {
    animation-delay: 0.5s;
}

.fade-slide-up:nth-child(4) {
    animation-delay: 0.7s;
}