/* --- CONFIGURATION ET COULEURS DE BASE --- */
:root {
    --bg-dark: #09090b;
    --bg-card: #18181b;
    --accent-orange: #f97316;
    --text-light: #f4f4f5;
    --text-muted: #a1a1aa;
    --border-color: #27272a;
    --font-stack: Arial, sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: var(--font-stack);
    line-height: 1.6;
    padding-bottom: 2rem;
}

/* --- EN-TÊTE --- */
.main-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    padding: 1.5rem 1rem;
}

.main-header .logo {
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: 2px;
    color: var(--accent-orange);
}

.main-header .subtitle {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
}

/* --- LAYOUT : SPLIT SCREEN (DÉFAUT ORDINATEUR) --- */
.container {
    display: flex;
    max-width: 1200px;
    margin: 2rem auto;
    gap: 2rem;
    padding: 0 1rem;
}

/* PANNEAU GAUCHE : Menu */
.sidebar {
    flex: 1;
    max-width: 300px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    height: fit-content;
}

.sidebar h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--accent-orange);
    padding-bottom: 0.5rem;
}

.sidebar ul {
    list-style: none;
}

.sidebar ul li {
    margin-bottom: 0.75rem;
}

.sidebar ul li a {
    color: var(--text-muted);
    text-decoration: none;
    display: block;
    padding: 0.5rem;
    border-radius: 4px;
    transition: all 0.2s;
}

.sidebar ul li a:hover, .sidebar ul li a.active {
    color: var(--text-light);
    background-color: var(--border-color);
    border-left: 4px solid var(--accent-orange);
}

/* PANNEAU DROIT : Contenu */
.content-area {
    flex: 3;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2.5rem;
}

/* --- DESIGN DU TEXTE --- */
.badge-status {
    background-color: rgba(249, 115, 22, 0.1);
    color: var(--accent-orange);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 1rem;
}

.capsule-core h1 {
    font-size: 2.2rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.capsule-core h2 {
    font-size: 1.4rem;
    color: var(--accent-orange);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.capsule-core p {
    margin-bottom: 1.25rem;
    color: #e4e4e7;
}

.introduction {
    font-size: 1.15rem;
    color: var(--text-light);
    font-weight: 500;
}

blockquote {
    border-left: 4px solid var(--text-muted);
    padding-left: 1rem;
    font-style: italic;
    color: var(--text-muted);
    margin: 1.5rem 0;
}

.capsule-core ul {
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

/* --- ZONE D'ACTION FACEBOOK --- */
.action-box {
    margin-top: 3rem;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 6px;
    text-align: center;
}

.action-box h3 {
    margin-bottom: 0.5rem;
}

.action-box p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.btn-facebook {
    display: inline-block;
    background-color: #1877f2;
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: bold;
    transition: background-color 0.2s;
}

.btn-facebook:hover {
    background-color: #165ecc;
}

/* --- RESPONSIVE : ADAPTATION MOBILE --- */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
        margin: 1rem auto;
    }

    .sidebar {
        max-width: 100%;
    }

    .content-area {
        padding: 1.5rem;
    }

    .capsule-core h1 {
        font-size: 1.7rem;
    }
}