:root {
    --primary-blue: #003366;
    --secondary-blue: #00509e;
    --accent-green: #4CAF50;
    --accent-gold: #FFC107;
    --bg-light: #F9FAFB;
    --text-dark: #1F2937;
    --text-light: #6B7280;
    --white: #FFFFFF;
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-secondary);
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
}

h1, h2, h3, h4 { font-family: var(--font-primary); color: var(--primary-blue); }
a { text-decoration: none; color: inherit; transition: 0.3s; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
section { padding: 80px 0; }

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 15px;
}
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0; left: 50%; transform: translateX(-50%);
    width: 60px; height: 4px; background-color: var(--accent-green); border-radius: 2px;
}
.section-subtitle { text-align: center; color: var(--text-light); margin-bottom: 50px; font-size: 1.1rem; }

/* HEADER */
#main-header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: sticky; top: 0; z-index: 1000;
    transition: padding 0.3s ease;
}
.header-content {
    display: flex; justify-content: space-between; align-items: center; height: 80px;
}
#main-header.sticky { padding: 5px 0; box-shadow: 0 4px 15px rgba(0,0,0,0.1); }
.logo-container { display: flex; align-items: center; gap: 15px; }
.logo-img { height: 100px; transition: height 0.3s ease; }
.brand-name { font-weight: 700; font-size: 1.5rem; color: var(--primary-blue); display: block; line-height: 1.2; }
.brand-tagline { font-size: 0.75rem; color: var(--text-light); display: block; }

#main-nav ul { list-style: none; display: flex; gap: 30px; }
#main-nav a { font-weight: 500; font-size: 1rem; color: var(--text-dark); position: relative; }
#main-nav a:hover, #main-nav a.active { color: var(--primary-blue); }
#main-nav a.active::after {
    content: ''; position: absolute; bottom: -5px; left: 0;
    width: 100%; height: 3px; background-color: var(--accent-green);
}

.menu-btn { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; }
.bar { display: block; width: 25px; height: 3px; background-color: var(--primary-blue); transition: 0.3s; }

/* HERO */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    color: var(--white); text-align: center; min-height: 80vh;
    display: flex; align-items: center; position: relative;
}
.hero-content { z-index: 2; }
.hero h1 { color: var(--white); font-size: 3.5rem; margin-bottom: 20px; line-height: 1.2; }
.hero h1 .highlight { color: var(--accent-gold); }
.hero p { font-size: 1.2rem; max-width: 700px; margin: 0 auto 10px; opacity: 0.9; }
.hero-locations { font-weight: 600; letter-spacing: 2px; margin-bottom: 50px !important; font-size: 1rem !important; }

.key-metrics { display: flex; justify-content: center; flex-wrap: wrap; gap: 20px; margin-top: 40px; }
.metric-card {
    background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 20px 40px; border-radius: 10px; min-width: 150px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.metric-card:hover { transform: translateY(-10px); box-shadow: 0 10px 20px rgba(0,0,0,0.2); background: rgba(255,255,255,0.2); }
.metric-card .number { display: block; font-size: 2.5rem; font-weight: 700; color: var(--accent-gold); }
.metric-card .label { font-size: 0.9rem; text-transform: uppercase; letter-spacing: 1px; }

/* TIMELINE */
.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px 0;
}
.timeline-line {
    position: absolute;
    left: 50%; top: 0; bottom: 0;
    width: 4px; background-color: var(--secondary-blue);
    transform: translateX(-50%);
}
.timeline-item {
    position: relative;
    width: 50%;
    padding: 10px 40px;
    margin-bottom: 40px;
}
.timeline-item:nth-child(odd) { left: 0; text-align: right; }
.timeline-item:nth-child(even) { left: 50%; text-align: left; }

.timeline-dot {
    position: absolute;
    top: 20px; width: 20px; height: 20px;
    background-color: var(--accent-green);
    border: 4px solid var(--white);
    border-radius: 50%;
    box-shadow: 0 0 0 3px var(--accent-green);
    z-index: 2;
}
.timeline-item:nth-child(odd) .timeline-dot { right: -10px; }
.timeline-item:nth-child(even) .timeline-dot { left: -10px; }

.timeline-year { font-size: 1.5rem; font-weight: 700; color: var(--primary-blue); margin-bottom: 5px; }
.timeline-card {
    background: var(--white);
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    display: inline-block;
    border-top: 4px solid var(--accent-green);
}
.timeline-card h4 { margin-bottom: 5px; font-size: 1.1rem; }
.timeline-card p { font-size: 0.9rem; color: var(--text-light); }

/* SECTEURS */
.section-sectors { background-color: var(--white); }
.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}
.sector-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid #E5E7EB;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.sector-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.1); border-color: var(--accent-green); }
.sector-card h3 { text-transform: uppercase; font-size: 0.9rem; color: var(--secondary-blue); margin-bottom: 5px; }
.sector-card h4 { font-size: 1.2rem; margin-bottom: 15px; }
.sector-card p { color: var(--text-light); font-size: 0.95rem; }

/* EMPREINTE REGIONALE (AVEC IMAGE afrique.png) */
.map-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    background: var(--white);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 2px dashed var(--text-light);
}

.africa-map-img {
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    max-height: 600px;
    object-fit: contain;
}

.region-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 30px;
}

.country-card {
    background: var(--bg-light);
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-green);
    text-align: left;
}
.country-card h4 { font-size: 1.1rem; color: var(--primary-blue); margin-bottom: 5px; }
.country-card p { font-size: 0.85rem; color: var(--text-light); line-height: 1.4; }

/* MARQUES */
.brands-layout { display: grid; grid-template-columns: 2fr 1fr; gap: 30px; align-items: start; }
.brand-cards { display: grid; gap: 20px; }
.brand-card {
    background: var(--primary-blue);
    color: var(--white);
    padding: 20px;
    border-radius: 8px;
    transition: transform 0.3s;
}
.brand-card:hover { transform: scale(1.02); }
.brand-card h3 { color: var(--accent-gold); font-size: 1.5rem; margin-bottom: 5px; }
.brand-card p { font-size: 0.95rem; color: #ddd; }
.brand-card .formats { font-size: 0.8rem; color: var(--accent-green); font-weight: 600; }

.capabilities {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
    border-top: 5px solid var(--accent-green);
}
.cap-item { margin-bottom: 20px; }
.cap-item h4 { color: var(--text-light); font-size: 1rem; text-transform: uppercase; }
.cap-item p strong { font-size: 2rem; color: var(--primary-blue); }
.usine-info { font-size: 0.9rem; font-style: italic; margin-top: 20px; }

.partnerships { margin-top: 50px; }
.partnerships h3 { margin-bottom: 30px; }
.partner-card {
    background: var(--white);
    border-left: 5px solid var(--secondary-blue);
    padding: 20px;
    margin-bottom: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* AGRICULTURE */
.agri-chain {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.chain-step {
    background: var(--accent-green);
    color: var(--white);
    padding: 20px;
    border-radius: 50%;
    text-align: center;
    width: 150px;
    height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: transform 0.3s;
}
.chain-step:hover { transform: scale(1.1); }
.step-num { font-size: 2rem; font-weight: 700; color: var(--primary-blue); }
.chain-step h4 { font-size: 0.9rem; color: var(--white); margin-top: 10px; }
.chain-arrow { font-size: 2rem; color: var(--primary-blue); font-weight: bold; }

.agri-potential {
    background: var(--white);
    padding: 20px;
    text-align: center;
    border-radius: 8px;
    border: 1px solid #E5E7EB;
}
.agri-potential h4 { margin-bottom: 10px; }
.source { font-size: 0.8rem; color: var(--text-light); margin-top: 10px; }

/* GOUVERNANCE */
.gov-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.gov-card {
    background: var(--primary-blue);
    color: var(--white);
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    transition: background 0.3s;
}
.gov-card:hover { background: var(--secondary-blue); }
.gov-card.full-width { grid-column: 1 / -1; }
.gov-card h4 { color: var(--accent-gold); margin-bottom: 10px; font-size: 1.1rem; }
.gov-card p { font-size: 0.9rem; color: #ddd; }

/* CONTACT */
.section-contact { background-color: var(--white); }
.contact-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 40px; margin-top: 40px; }
.contact-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: 10px;
    border-top: 5px solid var(--primary-blue);
}
.contact-card h3 { margin-bottom: 20px; font-size: 1.5rem; }
.btn-link { display: inline-block; margin-top: 20px; color: var(--primary-blue); font-weight: 600; border-bottom: 2px solid var(--accent-green); }
.subsidiary-list { list-style: none; }
.subsidiary-list li { margin-bottom: 10px; border-bottom: 1px solid #E5E7EB; padding-bottom: 10px; }

/* FOOTER */
footer { background-color: #1F2937; color: var(--text-light); padding: 40px 0; text-align: center; }
.footer-content { display: flex; flex-direction: column; gap: 20px; justify-content: center; align-items: center; }
.footer-brand p { margin-top: 10px; font-size: 0.9rem; }
.footer-links a { color: var(--white); }
.footer-links a:hover { color: var(--accent-gold); }

/* RESPONSIVE */
@media (max-width: 900px) {
    .timeline-container { max-width: 100%; }
    .timeline-line { left: 20px; }
    .timeline-item { width: 100%; left: 0 !important; text-align: left !important; padding-left: 60px; padding-right: 20px; }
    .timeline-item .timeline-dot { left: 10px !important; right: auto !important; }
    .brands-layout { grid-template-columns: 1fr; }
    .gov-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .menu-btn { display: flex; }
    #main-nav {
        position: absolute; top: 80px; left: 0; width: 100%;
        background: var(--white); max-height: 0; overflow: hidden;
        transition: max-height 0.3s ease; box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }
    #main-nav.open { max-height: 500px; }
    #main-nav ul { flex-direction: column; padding: 20px; gap: 15px; }
}