*,
*::before,
*::after{
box-sizing:border-box;
}

#login_form{
    max-width:400px;
    margin:50px auto;
    padding:35px;
    background:#f8f8f8;
    border-radius:12px;
    box-shadow:0 5px 20px rgba(0,0,0,0.08);
    font-family:Arial,sans-serif;
}

#login_form h4{
    text-align:center;
    margin-bottom:25px;
}

/* champ */

.field{
    display:grid;
    grid-template-columns:40px 1fr 40px;
    align-items:center;
    margin-bottom:18px;
    border:1px solid #ccc;
    border-radius:8px;
    background:white;
}

/* input */

.field input{
    border:none;
    outline:none;
    padding:12px 5px;
    font-size:0.95rem;
    width:100%;
}

/* icone gauche */

.field i{
    text-align:center;
    color:#777;
}

/* oeil */

.eye{
    text-align:center;
    cursor:pointer;
    color:#777;
}

/* captcha */

.captcha{
    display:flex;
    justify-content:center;
    margin:15px 0;
}

.buttons {
    display: flex;
    gap: 10px;               /* espace entre les boutons */
    justify-content: center;  /* centre les boutons horizontalement */
    margin-top: 20px;         /* un peu d'espace au-dessus */
}


/* Styles de base pour les boutons */
#login_form button {
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.25s ease; /* transition douce pour hover */
}

#login_form button#submission:hover {
    background-color: #555;   /* change couleur au survol */
    transform: translateY(-2px); /* léger effet de “soulèvement” */
    box-shadow: 0 4px 8px rgba(0,0,0,0.2); /* ombre subtile */
}

#login_form button#reset:hover {
    background-color: #ddd;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

/* Messages d'erreur sous les champs */
label.error {
    display: block;      /* forcer un bloc sur toute la largeur */
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 5px;     /* espace entre input et message */
}

/* Champ invalide */
input.is-invalid{
    border-color: #e74c3c;
}
</style>


/* ────────────────────────────── */
/* Media Queries pour login_form  */
/* ────────────────────────────── */

/* Tablettes */
@media (max-width: 1024px) {
    #login_form {
        max-width: 350px;   /* un peu plus étroit */
        padding: 30px;
    }

    .field input {
        font-size: 0.9rem;
    }

    .buttons button {
        padding: 9px 18px;
        font-size: 0.9rem;
    }
}

/* Mobiles */
@media (max-width: 768px) {
    #login_form {
        max-width: 320px;
        padding: 25px;
        margin: 30px auto;
    }

    /* Champs */
    .field {
        grid-template-columns: 35px 1fr 35px;
        margin-bottom: 15px;
    }

    .field input {
        font-size: 0.9rem;
        padding: 10px 5px;
    }

    /* Icônes */
    .field i,
    .eye {
        font-size: 0.9rem;
    }

    /* Captcha centré et plus petit si besoin */
    .captcha {
        transform: scale(0.9);
        transform-origin: center;
    }

    /* Boutons */
    .buttons {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }

    .buttons button {
        width: 100%;
    }
}

/* Très petits écrans */
@media (max-width: 480px) {
    #login_form {
        max-width: 280px;
        padding: 20px;
        margin: 20px auto;
    }

    .field {
        grid-template-columns: 30px 1fr 30px;
    }

    .field input {
        padding: 8px 4px;
        font-size: 0.85rem;
    }

    .buttons button {
        font-size: 0.9rem;
        padding: 8px 10px;
    }
}