/* --- VARIABLES --- */
        :root {
            --copper: #c5a059;
            --copper-low: rgba(197, 160, 89, 0.1);
            --copper-mid: rgba(197, 160, 89, 0.4);
            --bg-dark: #0a0a0a;
            --text-grey: #a0a0a0;
        }

        /* --- STYLE GÉNÉRAL --- */
        body {
            background-color: var(--bg-dark);
            color: var(--copper);
            font-family: 'Inter', sans-serif;
            margin: 0;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
            line-height: 1.6;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        .serif { font-family: 'Playfair Display', serif; }
        .uppercase { text-transform: uppercase; }

        /* --- Structure Header --- */
        header {
            padding-top: 4rem;
            padding-bottom: 3rem;
            text-align: center;
        }

        .header-title {
            font-size: 2.25rem;
            letter-spacing: 0.2em;
            margin-bottom: 1rem;
            font-weight: normal;
            margin-top: 20px;
        }

        @media (min-width: 768px) {
            .header-title {
                font-size: 3.75rem;
            }
        }

        .header-divider {
            width: 6rem;
            height: 1px;
            background-color: currentColor;
            margin: 0 auto 2rem auto;
            opacity: 0.3;
        }

        @media (min-width: 768px) {
            .page-title { font-size: 5rem; }
        }

                /* --- BOUTON PLEIN ÉCRAN (NOUVEAUTÉ) --- */
        .fullscreen-btn {
            position: fixed;
            top: 2rem;
            right: 2rem;
            z-index: 50;
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid var(--copper-low);
            color: var(--copper);
            width: 45px;
            height: 45px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.4s ease;
            backdrop-filter: blur(4px);
        }

        .fullscreen-btn:hover {
            border-color: var(--copper);
            background: rgba(197, 160, 89, 0.1);
            transform: scale(1.05);
        }

        /* --- CONTENU PRINCIPAL --- */
        main {
            flex-grow: 1;
            padding: 0 2rem 4rem;
            max-width: 900px; /* Largeur contenue pour la lisibilité */
            margin: 0 auto;
            width: 100%;
            box-sizing: border-box;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        /* --- IMAGE DE PRÉSENTATION --- */
        .portrait-container {
            width: 100%;
            max-width: 500px;
            margin-bottom: 4rem;
            position: relative;
        }

        /* Cadre décoratif autour de l'image */
        .portrait-container::after {
            content: '';
            position: absolute;
            top: 20px;
            left: 20px;
            right: -20px;
            bottom: -20px;
            border: 1px solid var(--copper-mid);
            z-index: -1;
            transition: transform 0.5s ease;
        }

        .portrait-container:hover::after {
            transform: translate(10px, 10px);
        }

        .portrait-image {
            width: 100%;
            height: auto;
            display: block;
            /* filter: grayscale(20%); Légère désaturation pour le style */
            transition: filter 0.5s ease;
        }

        .portrait-container:hover .portrait-image {
            filter: grayscale(0%);
        }

        /* --- TEXTE (BIO) --- */
        .bio-text {
            color: var(--text-grey);
            font-size: 1rem;
            text-align: justify; /* Justifié pour faire "livre" */
            letter-spacing: 0.05em;
            line-height: 1.9;
        }

        /* Lettrine (Première lettre) */
        .bio-text::first-letter {
            font-family: 'Playfair Display', serif;
            font-size: 3.5rem;
            float: left;
            margin-right: 0.5rem;
            line-height: 0.8;
            color: var(--copper);
        }

        .bio-paragraph {
            margin-bottom: 2rem;
        }

        /* --- Footer --- */
        .back-link-container {
            text-align: center;
            margin-top: 4rem;
        }

        .back-link {
            font-size: 0.75rem;
            text-transform: uppercase;
            letter-spacing: 0.3em;
            opacity: 0.4;
            transition: opacity 0.3s;
            margin-bottom: 50px;
        }

        .back-link:hover {
            opacity: 1;
        }

        footer {
            padding-bottom: 4rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2rem;
        }

        .footer-legal {
            font-size: 11px;
            letter-spacing: 0.5em;
            text-transform: uppercase;
            opacity: 0.3;
            text-align: center;
        }

        /* --- ANIMATION --- */
        .fade-in { animation: fadeIn 1.2s ease forwards; }
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }