/* Styles généraux */
        html {
            scroll-behavior: smooth; /* Défilement fluide entre les sections */
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-image: url(Fond.JPG);
            background-size: cover;
            color: #333;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

        /* En-tête (Bannière avec logo) */
        header {
            background-color: #0074bb; /* Bleu profond */
            color: white;
            padding: 1.5rem 2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-wrap: wrap;
        }
        .header-logo {
            width : 15%;
            height : 15%;
            margin-right: 2rem;
            padding: 5px;
            border-radius: 5px;
        }
        .header-titles {
            text-align: left;
        }
        .header-titles h1 {
            margin: 0;
            font-size: 2.5rem;
            text-transform: uppercase;
        }
        .header-titles .subtitle {
            margin: 0;
            font-style: italic;
            font-size: 1.2rem;
            opacity: 0.9;
        }

        /* Menu de navigation */
        nav {
            background-color: #0074bb;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        }
        nav ul {
            list-style-type: none;
            margin: 0;
            padding: 0;
            display: flex;
            justify-content: center;
        }
        nav ul li {
            margin: 0;
        }
        nav ul li a {
            display: block;
            color: white;
            text-align: center;
            padding: 1rem 2rem;
            text-decoration: none;
            font-weight: bold;
            font-size: 1.1rem;
            transition: background-color 0.3s;
        }
        nav ul li a:hover {
            background-color: #016aab;
        }

        /* Contenu principal */
        main {
            flex: 1;
            padding: 2rem;
            max-width: 900px;
            margin: 0 auto;
            width: 100%;
            box-sizing: border-box;
            background-image: "Fond.JPG";
        }
        section {
            background: white;
            padding: 2rem;
            margin-bottom: 2rem;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            scroll-margin-top: 80px; /* Évite que le menu cache le titre au clic */
        }
        section h2 {
            color: #005f73;
            border-bottom: 2px solid #94d2bd;
            padding-bottom: 0.5rem;
            margin-top: 0;
        }

        /* Alertes et blocs spécifiques */
        .alert-box {
            background-color: #e9ecef;
            border-left: 5px solid #ee9b00;
            padding: 1rem;
            border-radius: 4px;
            margin-bottom: 1.5rem;
            font-weight: bold;
        }
        .contact-list {
            list-style: none;
            padding: 0;
            font-size: 1.1rem;
        }
        .contact-list li {
            margin-bottom: 10px;
        }
        .contact-list a {
            color: #0a9396;
            text-decoration: none;
            font-weight: bold;
        }
        .contact-list a:hover {
            text-decoration: underline;
        }

        /* Pied de page */
        footer {
            background-color: #016aab;
            color: white;
            text-align: center;
            padding: 1.5rem;
            margin-top: auto;
        }

        /* Responsive design pour mobiles */
        @media (max-width: 600px) {
            header {
                flex-direction: column;
                text-align: center;
            }
            .header-logo {
                margin-right: 0;
                margin-bottom: 1rem;
            }
            .header-titles {
                text-align: center;
            }
            .header-titles h1 {
                font-size: 1.8rem;
            }
            nav ul {
                flex-direction: column;
            }
            nav ul li a {
                padding: 0.8rem;
                border-bottom: 1px solid rgba(255,255,255,0.1);
            }
        }

        .rendez-vous-card {
            background: #ffffff;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
            text-align: center;
            border-top: 6px solid #e63946; /* Rouge d'alerte/rappel amical */
            margin-bottom: 40px;
        }

        .rendez-vous-card h2 {
            color: #e63946;
            font-size: 1.6rem;
            margin-bottom: 15px;
        }

        .time-highlight {
            font-size: 1.8rem;
            font-weight: bold;
            color: #0d47a1;
            margin: 10px 0;
        }

        .conditions-text {
            color: #7f8c8d;
            font-size: 0.95rem;
            font-style: italic;
        }
         
/* Gestion des Bulles */

        /* L'overlay (l'écran qui s'opacifie avec une teinte bleutée "eau") */
        .water-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: rgba(10, 40, 70, 0.85); /* Couleur de l'eau opacifiée */
            opacity: 0;
            visibility: hidden;
            transition: opacity 1s ease, visibility 1s ease;
            z-index: 9999;
            overflow: hidden;
        }

        /* Classe active pour afficher l'overlay */
        .water-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        /* Style de base d'une bulle d'air */
        .bubble {
            position: absolute;
            bottom: -50px; /* Part du bas de l'écran */
            background: rgba(255, 255, 255, 0.4);
            border: 1px solid rgba(255, 255, 255, 0.7);
            border-radius: 50%;
            box-shadow: inset 0 2px 5px rgba(255, 255, 255, 0.6), 0 2px 4px rgba(0,0,0,0.1);
            animation: rise 2s linear infinite;
            pointer-events: none; /* Évite de bloquer les clics */
        }

        /* Reflet lumineux à l'intérieur de la bulle */
        .bubble::after {
            content: '';
            position: absolute;
            top: 15%;
            left: 15%;
            width: 25%;
            height: 25%;
            background: rgba(255, 255, 255, 0.8);
            border-radius: 50%;
        }

        /* Animation CSS du mouvement de la bulle */
        @keyframes rise {
            0% {
                transform: translateY(0) translateX(0);
                opacity: 0;
            }
            10% {
                opacity: 1;
            }
            50% {
                /* Effet d'oscillation de gauche à droite */
                transform: translateY(-80vh) translateX(30px);
            }
            100% {
                transform: translateY(-135vh) translateX(-20px);
                opacity: 0.3;
            }
        }