:root {
    --primary-color: #1b4d3e;
    --secondary-color: #2e8b57;
    --dark-color: #1a202c;
    --light-color: #f7fafc;
    --text-color: #4a5568;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', sans-serif; }
html { scroll-behavior: smooth; }
body { color: var(--text-color); line-height: 1.6; background-color: var(--white); }

.container { width: 90%; max-width: 1200px; margin: 0 auto; }
.section-padding { padding: 80px 0; }
.bg-light { background-color: var(--light-color); }
.bg-dark { background-color: var(--dark-color); }
.text-white { color: var(--white); }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }

.section-header { text-align: center; margin-bottom: 50px; }
.section-tag { display: inline-block; color: var(--secondary-color); font-weight: bold; text-transform: uppercase; font-size: 0.9rem; letter-spacing: 2px; margin-bottom: 10px; }
h2 { font-size: 2.5rem; color: var(--dark-color); margin-bottom: 15px; }

.btn { display: inline-block; padding: 12px 28px; border-radius: 30px; text-decoration: none; font-weight: 600; transition: var(--transition); cursor: pointer; }
.btn-primary { background-color: var(--secondary-color); color: var(--white); border: none; }
.btn-primary:hover { background-color: var(--primary-color); }
.btn-secondary { background-color: transparent; color: var(--white); border: 2px solid var(--white); margin-left: 15px; }
.btn-secondary:hover { background-color: var(--white); color: var(--dark-color); }
.btn-block { width: 100%; text-align: center; }

/* Navigation */
.navbar { background-color: white; position: fixed; top: 0; width: 100%; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
.nav-container { display: flex; justify-content: space-between; align-items: center; height: 80px; width: 90%; max-width: 1200px; margin: 0 auto; }
.nav-logo { font-size: 1.5rem; font-weight: 700; color: var(--primary-color); text-decoration: none; }
.nav-logo span { color: var(--secondary-color); }
.nav-menu { display: flex; list-style: none; align-items: center; }
.nav-link { color: var(--text-color); text-decoration: none; padding: 10px 20px; font-weight: 500; transition: var(--transition); }
.nav-link:hover, .nav-link.active { color: var(--secondary-color); }
.btn-nav { background-color: var(--primary-color); color: var(--white) !important; border-radius: 20px; padding: 8px 20px; }

/* Hero Section (Fixe) */
.hero-section {
    height: 130vh;
    background: linear-gradient(rgba(27, 77, 62, 0.8), rgba(26, 32, 44, 0.85)), url('pictures/image\ 8.jpeg') no-repeat center center/cover;
    display: flex; align-items: center; color: var(--white); padding-top: 80px;
}
.hero-content { max-width: 800px; width: 90%; margin: 0 auto; }
.hero-section h1 { font-size: 3.5rem; margin: 20px 0; }
.hero-section h1 span { color: var(--secondary-color); }
.hero-subtitle { font-size: 1.1rem; text-transform: uppercase; letter-spacing: 3px; color: var(--secondary-color); font-weight: 600; }

/* Stats & Timeline */
.stats-grid { display: flex; gap: 20px; margin-top: 30px; }
.stat-card { background: var(--light-color); padding: 20px; border-radius: 10px; border-left: 4px solid var(--secondary-color); width: 100%; }
.timeline { border-left: 3px solid var(--secondary-color); padding-left: 20px; margin-bottom: 30px; }
.timeline-item { position: relative; margin-bottom: 20px; }
.timeline-item::before { content: ''; position: absolute; left: -27px; top: 6px; width: 12px; height: 12px; border-radius: 50%; background: var(--secondary-color); }

/* --- LE CARROUSEL SOUS 2025 --- */
.about-slider-container {
    width: 100%;
    height: 400px; /* Ajuste la hauteur de la boîte ici */
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}
.about-slider { width: 100%; height: 100%; position: relative; background: #e2e8f0; }
.about-slider .about-slide {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover; opacity: 0; transition: opacity 0.8s ease-in-out; z-index: 1;
}
/* Style spécial appliqué par JavaScript pour montrer l'image active */
.about-slider .about-slide.active { opacity: 1; z-index: 2; }

/* Autres Sections */
.card { background: var(--white); padding: 30px; border-radius: 12px; box-shadow: 0 4px 20px rgba(0,0,0,0.02); text-align: center; }
.card-icon { font-size: 2.5rem; color: var(--secondary-color); margin-bottom: 15px; }
.zone-box { background: var(--light-color); padding: 25px; border-radius: 8px; text-align: center; }
.zone-box i { font-size: 2rem; color: var(--secondary-color); margin-bottom: 10px; }

/* Formulaire */
.bank-details { background: rgba(255,255,255,0.05); padding: 15px; border-radius: 8px; margin: 20px 0; border: 1px dashed rgba(255,255,255,0.2); }
.contact-form { background: var(--white); padding: 30px; border-radius: 12px; }
.form-group { margin-bottom: 15px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px; border: 1px solid #e2e8f0; border-radius: 6px; outline: none; }

.footer { background: #111622; text-align: center; padding: 20px; color: rgba(255,255,255,0.4); font-size: 0.9rem; }
.menu-toggle { display: none; cursor: pointer; }

@media (max-width: 768px) {
    .nav-menu { position: absolute; top: 80px; left: -100%; flex-direction: column; background: white; width: 100%; box-shadow: 0 10px 10px rgba(0,0,0,0.05); }
    .nav-menu.active { left: 0; }
    .menu-toggle { display: block; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* --- Menu Mobile Rapide --- */
.menu-toggle { display: none; cursor: pointer; }
.bar { display: block; width: 25px; height: 3px; margin: 5px auto; transition: var(--transition); background-color: var(--dark-color); }

@media (max-width: 768px) {
    .nav-menu {
        position: absolute; top: 80px; left: -100%; flex-direction: column;
        background-color: var(--white); width: 100%; text-align: center; transition: 0.3s; box-shadow: 0 10px 10px rgba(0,0,0,0.05);
    }
    .nav-menu.active { left: 0; }
    .nav-menu li { margin: 15px 0; }
    .menu-toggle { display: block; }
    .hero-section h1 { font-size: 2.3rem; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* === NOUVEAU CSS POUR LE RENDU "WHAT WE DO" === */

/* 1. Conteneur principal (Grille de 3 colonnes) */
.mission-cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); /* 3 colonnes responsives */
    gap: 30px; /* Espace entre les cartes */
    padding: 20px 0;
}

/* 2. Structure de base d'une carte */
.mission-card {
    height: 450px; /* Hauteur des cartes */
    border-radius: 20px; /* Coins arrondis style "What we do" */
    overflow: hidden; /* Pour que le filtre sombre respecte les coins arrondis */
    background-size: cover;
    background-position: center;
    position: relative; /* Nécessaire pour le calque de filtre */
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

/* Effet de survol (zoom léger) */
.mission-card:hover {
    transform: translateY(-5px);
}

/* 3. Attribution des images de fond aux cartes */
/* REMPLACEZ 'chemin_vers_image.jpg' par vos vrais fichiers images */
.card-vision {
    background-image: url('pictures/image\ vision.jpg'); 
}

.card-mission {
    background-image: url('pictures/notre\ mission.jpeg');
}

.card-valeurs {
    background-image: url('pictures/Nos\ valeurs.jpeg');
}

/* 4. Le calque sombre transparent (Overlay) qui rend le texte lisible */
.card-overlay {
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.8)); /* Dégradé sombre */
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center; /* Centre verticalement */
    align-items: center; /* Centre horizontalement */
    text-align: center;
    padding: 30px;
    color: #ffffff; /* Tout le texte devient blanc */
}

/* 5. Style des icônes rondes blanches */
.card-icon {
    background-color: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px); /* Léger effet de flou behind l'icône */
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.4);
}

/* 6. Titres H3 et paragraphes dans les cartes */
.card-overlay h3 {
    font-size: 1.6rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.card-overlay p {
    font-size: 1.05rem;
    line-height: 1.5;
    font-weight: 400;
}

/* ==========================================================================
   RENDU CARTOGRAPHIQUE : NOS ZONES D'INTERVENTION
   ========================================================================== */

.zones-cards-container {
    margin-top: 30px;
}

/* Base de la carte avec l'image géographique */
.zone-card-bg {
    height: 320px;               /* Hauteur adaptée pour les zones d'intervention */
    border-radius: 16px;         /* Coins arrondis élégants */
    overflow: hidden;
    background-size: cover;
    background-position: center;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
    position: relative;
}

/* Effet de survol */
.zone-card-bg:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.12);
}

/* --- ADRESSE DES IMAGES DE CARTES (À adapter avec vos fichiers) --- */
.zone-katanga {
    background-image: url('pictures/carte\ haut\ ktg.jpg');
}

.zone-lualaba {
    background-image: url('pictures/lualaba\ carte.webp');
}

.zone-lomami {
    background-image: url('pictures/haut\ lomami\ carte.jfif');
}


.zone-tanganyika {
    background-image: url('pictures/carte\ tanga\ jaune.jpg');
}

/* Le filtre transparent appliqué sur la carte géographique */
/* Note : On utilise ici un dégradé du blanc vers le vert foncé/sombre pour garder de la fraîcheur */
.zone-overlay {
    
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 25px;
    transition: var(--transition);
}

/* Optionnel : Si vous préférez un fond sombre classique pour faire ressortir le texte en blanc au survol */
.zone-card-bg:hover .zone-overlay {
    background: linear-gradient(rgba(26, 32, 44, 0.8), rgba(26, 32, 44, 0.95));
}

/* Gestion dynamique de la couleur du texte lors du survol */
.zone-card-bg h3, .zone-card-bg .zone-icon {
    color: var(--primary-color); /* Vert foncé d'origine */
    transition: var(--transition);
}
.zone-card-bg p {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.5;
    transition: var(--transition);
}

/* Quand on survole la carte, tout le texte passe au blanc lumineux */
.zone-card-bg:hover h3, 
.zone-card-bg:hover p, 
.zone-card-bg:hover .zone-icon {
    color: var(--white);
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

/* Style de l'icône de zone */
.zone-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.zone-overlay h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    font-weight: 700;
}

/* --- STYLE DU SÉLECTEUR DE LANGUE --- */
.lang-switcher {
    margin-left: 20px;
    list-style: none;
    display: flex;
    align-items: center;
}

#lang-select {
    background-color: var(--light-color, #f7fafc);
    color: var(--primary-color, #1b4d3e);
    border: 1px solid #e2e8f0;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.85rem;
    outline: none;
    cursor: pointer;
}
/* Alignement pour les smartphones */
@media (max-width: 768px) {
    .lang-switcher {
        margin: 15px 0;
        justify-content: center;
    }
}