body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 18px;
    color: #ffffff;
    background-image: url("images/fondnts3.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

/* ---------- Bandeau ---------- */

.header {
    display: flex;
    align-items: center;
    background: #004466;
    padding: 15px 35px;
    position: relative;
    box-shadow: 0px 2px 10px rgba(0,0,0,.25);
}

.header-logo {
    height: 70px;
}

.nav-links {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 35px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    font-weight: bold;
    transition: .25s;
}

.nav-links a:hover {
    color: #9bd4ff;
}

/* ---------- Bloc principal ---------- */

.main-content {
    max-width: 1000px;
    margin: 50px auto;
    padding: 40px;
    background: rgba(255,255,255,.60);
    backdrop-filter: blur(3px);
    border-radius: 12px;
}

/* ---------- Hiérarchie typographique ---------- */

.main-content h1 {
    font-size: 40px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
    color: black;
}

.main-content h2 {
    font-size: 20px;
    margin-top: 45px;
    margin-bottom: 20px;
    color: #2255b3;
}

.main-content h2bis {
    font-size: 20px;
    margin-top: 45px;
    margin-bottom: 25px;
    color: black;
}

.main-content h3 {
    font-size: 20px;
    margin-top: 35px;
    margin-bottom: 15px;
    color: black;
}

.main-content p {
    font-size: 20px;
    line-height: 1.7;
    margin-bottom: 20px;
    color: black;
}

.main-content li {
    font-size: 20px;
    line-height: 1.6;
    color: black;
}

/* ---------- Formulaire inscription en 2 colonnes ---------- */

.form-grid {
    max-width: 900px;
    margin: 40px auto 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px 30px;
    text-align: left;
    color: black;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: bold;
    font-size: 18px;
    color: black;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 6px;
    font-size: 17px;
    box-sizing: border-box;
}

/* Élément qui prend toute la largeur du formulaire */

.full-width {
    grid-column: 1 / -1;
}

/* ---------- Cases à cocher ---------- */

.checkbox-line {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 16px;
    line-height: 1.5;
    font-weight: normal;
}

.checkbox-line input {
    width: auto;
    margin-top: 4px;
}

/* ---------- Bouton de validation centré ---------- */

.form-submit {
    text-align: center;
    margin-top: 10px;
}

.form-submit .btn-inscription {
    display: inline-block;
    margin: 20px auto;
}

/* ---------- Boutons ---------- */

.btn-inscription,
.btn-logement {
    display: inline-block;
    margin-top: 20px;
    padding: 14px 28px;
    border-radius: 6px;
    background: #005f8c;
    color: white;
    text-decoration: none;
    font-size: 20px;
    font-weight: bold;
    transition: .25s;
}

.btn-inscription:hover,
.btn-logement:hover {
    background: #0096d6;
}

/* ---------- Bloc complémentaire ---------- */

.bloc-inscription {
    margin-top: 60px;
    text-align: center;
}

.rgpd {
    margin: 40px auto;
    max-width: 900px;
    font-size: 15px;
    text-align: justify;
    line-height: 1.7;
}

/* ---------- Adresse + carte ---------- */

.info-section {
    display: flex;
    align-items: stretch;
    background: rgba(255,255,255,.70);
    color: black;
    padding: 20px 30px;
    margin-top: auto;
    margin-left: auto;
    width: 50%;
    box-sizing: border-box;
    gap: 30px;
}

/* Partie adresse */
.adresse-info {
    flex: 0 0 40%;
}

.adresse-info h2 {
    color: #004466;
    margin-top: 0;
}

.adresse-info p {
    color: #222222;
    font-size: 18px;
}

/* Partie carte */
.map {
    flex: 1;
    height: 250px;
}

.map iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
}



/* ---------- Responsive ---------- */

@media screen and (max-width: 900px) {
    .header {
        flex-direction: column;
        width: 100%;
    }

    .nav-links {
        position: static;
        transform: none;
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 20px;
    }

    .form-grid {
        grid-template-columns: 1fr;
        max-width: 95%;
    }

    .info-section {
        flex-direction: column;
    }

    .adresse-info,
    .map {
        width: 100%;
    }

    .map {
        margin-top: 30px;
        height: 350px;
    }

    .main-content {
        margin: 20px;
        padding: 25px;
    }
}

/* ---------- Logo partenaire ---------- */

.grille-partenaires {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin: 40px auto;
}

.logo-partenaire {
    max-width: 180px;
    max-height: 100px;
    object-fit: contain;
}

.logo-institution {
    max-width: 180px;
    max-height: 100px;
    object-fit: contain;
}