/* --- CONFIGURATION GLOBALE --- */
:root {
    --primary-color: #42043d;
    --secondary-color: #3498db;
    --third-color: #3dba84;
    --accent-color: #e74c3c;
    --bg-light: #f8f9fa;
    --bg-body: #e1e9e9;
    --text-dark: #333;
    --transition: all 0.3s ease-in-out;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-body);
    line-height: 1.6;
}

/* --- ENTÊTE OPTIMISÉE (EXTRÊME GAUCHE / EXTRÊME DROITE) --- */
header {
    background-color: var(--primary-color);
    color: white;
    padding: 1.2rem 5%; /* 5% de marge interne sur les côtés pour respirer */
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    animation: slideDown 0.5s ease-out;
    
    /* Force l'écartement extrême */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-association h1 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: #bdc3c7;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 500;
    padding: 0.3rem 0;
    position: relative;
    transition: var(--transition);
}

/* Ligne d'animation sous les liens */
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a:hover,
.nav-links a.active {
    color: white;
}

/* --- CONTENEUR PRINCIPAL (2 COLONNES) --- */
.main-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: 60% 40%;
    gap: 2rem;
}

/* --- COLONNE GAUCHE (60%) --- */
.col-left {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    animation: fadeIn 0.8s ease-out;
}

.welcome-box h2 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    border-bottom: 3px solid var(--secondary-color);
    padding-bottom: 0.5rem;
}

.president-profile {
    text-align: center;
    margin-bottom: 1.5rem;
}

.president-img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--secondary-color);
    transition: var(--transition);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.president-img:hover {
    transform: scale(1.05) rotate(3deg);
    border-color: var(--accent-color);
}

.president-title {
    font-weight: bold;
    margin-top: 0.5rem;
    color: #555;
}

.welcome-text {
    text-align: justify;
    font-size: 1.1rem;
}

/* --- COLONNE DROITE (40%) --- */
.col-right {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: fadeInRight 0.8s ease-out;
}

.info-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
    border-left: 5px solid var(--secondary-color);
}

.info-card.anno {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
    border-left: 5px solid var(--third-color);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.info-card.promo {
    border-left-color: var(--accent-color);
}

.info-card h3 {
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.info-card.anno h3 {
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.info-card.promo h3 {
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

/* --- PIED DE PAGE (FOOTER) --- */
footer {
    background-color: var(--primary-color);
    color: #bdc3c7;
    text-align: center;
    padding: 1.5rem;
    margin-top: 3rem;
    font-size: 0.9rem;
}

/* --- ANIMATIONS CSS --- */
@keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 900px) {
    .main-container {
        grid-template-columns: 100%;
        gap: 1.5rem;
    }
}

@media (max-width: 600px) {
    header {
        flex-direction: column; /* Le nom et le menu s'empilent sur très petit écran */
        gap: 1rem;
        text-align: center;
    }

    .nav-links {
        gap: 1.2rem;
    }
}