/* ============================================
   BIOFERMEIL - Charte Graphique Commune
   Navigation unifiée pour TOUTES les pages
   ============================================ */

:root {
    /* --- Couleurs principales (identité BioFermeil) --- */
    --vert-principal: #558b2f;
    --vert-clair: #7cb342;
    --vert-vif: #6edd2e;
    --vert-tres-clair: #E8F5E9;
    --vert-pale: #f1f8e9;
    --terre: #5D4037;
    --terre-clair: #8D6E63;
    --creme: #FFF8E1;
    --blanc: #FFFFFF;
    --gris-clair: #F5F5F5;
    --gris-moyen: #9E9E9E;
    --gris-fonce: #424242;
    --accent-orange: #FF8F00;
    --accent-rouge: #C62828;
    --orange-accent: #ff6f00;

    /* --- Tons pastels naturels (fonds des sections) --- */
    --creme-lin: #faf6f1;
    --sable-doux: #f5efe6;
    --terre-claire: #f0e6dc;
    --sauge-pale: #e8ede5;
    --argile: #ebe3d9;

    /* --- Utilitaires --- */
    --ombre: 0 2px 8px rgba(0,0,0,0.1);
    --ombre-hover: 0 4px 16px rgba(0,0,0,0.15);
    --rayon: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--gris-texte);
    line-height: 1.7;
}
/* ============================================
   HEADER / NAVIGATION UNIFIÉE
   ============================================ */
.bf-header {
    background: linear-gradient(135deg, var(--vert-principal) 0%, #2d5016 100%);
    color: var(--blanc);
    padding: 0;
    box-shadow: var(--ombre);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.bf-header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}



.bf-logo {
    font-family: 'Open Sans', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    text-decoration: none;
    color: var(--blanc);
    display: flex;
    align-items: center;
    gap: 10px;
}

.bf-logo:hover {
    opacity: 0.9;
}

.bf-logo span {
    font-size: 1.4rem;
}

.bf-nav {
    display: flex;
    gap: 5px;
    align-items: center;
    list-style: none;
}

.bf-nav a {
    color: var(--blanc);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 14px;
    border-radius: var(--rayon);
    transition: var(--transition);
}

.bf-nav a:hover {
    background-color: rgba(255,255,255,0.2);
    color: var(--blanc);
}

.bf-nav a.active {
    background-color: rgba(255,255,255,0.25);
    font-weight: 600;
}

/* ---- BOUTON HAMBURGER MOBILE ---- */
.bf-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}

.bf-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--blanc);
    margin: 5px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* ---- BANNIERE ---- */
.bf-banner {
    background: linear-gradient(135deg, var(--vert-principal), var(--terre));
    color: var(--blanc);
    text-align: center;
    padding: 50px 20px 40px;
}

.bf-banner h1 {
    font-family: 'Open Sans', sans-serif;
    font-size: 2.2rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.bf-banner p {
    font-size: 1.1rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

/* ---- CONTENEUR PRINCIPAL ---- */
.bf-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 20px;
}

/* ---- FOOTER ---- */
.bf-footer {
    background-color: var(--terre);
    color: var(--creme);
    text-align: center;
    padding: 25px 20px;
    margin-top: 40px;
    font-size: 0.9rem;
}

.bf-footer a {
    color: var(--vert-clair);
    text-decoration: none;
}

.bf-footer a:hover {
    text-decoration: underline;
}

/* ---- BOUTONS ---- */
.bf-btn {
    display: inline-block;
    padding: 10px 24px;
    border: none;
    border-radius: var(--rayon);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    text-align: center;
}

.bf-btn-primary {
    background-color: var(--vert-principal);
    color: var(--blanc);
}

.bf-btn-primary:hover {
    background-color: var(--vert-clair);
    box-shadow: var(--ombre-hover);
}

.bf-btn-secondary {
    background-color: var(--terre);
    color: var(--blanc);
}

.bf-btn-secondary:hover {
    background-color: var(--terre-clair);
}

.bf-btn-danger {
    background-color: var(--accent-rouge);
    color: var(--blanc);
}

.bf-btn-danger:hover {
    opacity: 0.9;
}

.bf-btn-small {
    padding: 6px 14px;
    font-size: 0.85rem;
}

/* ---- MESSAGES FLASH ---- */
.bf-message {
    padding: 12px 20px;
    border-radius: var(--rayon);
    margin-bottom: 20px;
    font-weight: 500;
}

.bf-message-success {
    background-color: var(--vert-tres-clair);
    color: var(--vert-principal);
    border: 1px solid var(--vert-clair);
}

.bf-message-error {
    background-color: #FFEBEE;
    color: var(--accent-rouge);
    border: 1px solid #EF9A9A;
}

.bf-message-info {
    background-color: #E3F2FD;
    color: #1565C0;
    border: 1px solid #90CAF9;
}

/* ============================================
   RESPONSIVE - MENU MOBILE
   ============================================ */
@media (max-width: 768px) {
    .bf-menu-toggle {
        display: block;
    }

    .bf-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #2d5016;
        flex-direction: column;
        padding: 15px 20px;
        gap: 5px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    }

    .bf-nav.active {
        display: flex;
    }

    .bf-nav a {
        padding: 12px 16px;
        width: 100%;
        text-align: left;
        border-radius: var(--rayon);
    }

    .bf-nav a:hover {
        background-color: rgba(255,255,255,0.15);
    }

    .bf-banner h1 {
        font-size: 1.6rem;
    }
}