* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #222;
}

.site {
    width: 1000px;
    margin: 0 auto;
    background-color: #fff;
    min-height: 100vh;
}

.entete {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background-color: #1f2a44;
    color: #fff;
}

.logo {
    font-weight: bold;
    font-size: 20px;
}

.menu {
    flex: 1;
    margin: 0 20px;
}

.menu-liste {
    display: flex;
    gap: 12px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-liste a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
}

.menu-toggle {
    display: none;
    background: none;
    border: 1px solid #fff;
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
}

.utilisateur a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
}

.contenu {
    padding: 20px;
}

.section-titre {
    margin-top: 0;
}

.grille-photos {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.vignette {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: center;
}

.vignette img {
    max-width: 100%;
    height: 120px;
    object-fit: cover;
}

.liste-document {
    width: 100%;
    border-collapse: collapse;
}

.liste-document th,
.liste-document td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: left;
}

.message {
    border-bottom: 1px solid #eee;
    padding: 12px 0;
}

.formulaire {
    display: grid;
    gap: 12px;
    max-width: 500px;
}

.formulaire input,
.formulaire textarea,
.formulaire select {
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.bouton {
    padding: 10px 16px;
    background-color: #1f2a44;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.bouton-plein-ecran {
    margin-top: 8px;
}

.alerte {
    padding: 10px;
    background-color: #ffe5e5;
    border: 1px solid #ffb3b3;
    color: #900;
}

@media (max-width: 700px) {
    .menu-liste {
        display: none;
        flex-direction: column;
        background-color: #1f2a44;
        padding: 12px;
    }

    .menu-liste.ouvert {
        display: flex;
    }

    .menu-toggle {
        display: inline-block;
    }
}