body {
            background-color: #ffffff;
            color: #1d1d1f;
        }

        /* Animation d'apparition au scroll */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s ease-out;
        }

        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }

        /* Effet de l'anneau Nabu minimaliste */
        .nabu-halo {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            border: 2px solid rgba(255, 255, 255, 0.1);
            position: relative;
        }

        .nabu-halo::after {
            content: '';
            position: absolute;
            top: -2px;
            left: -2px;
            right: -2px;
            bottom: -2px;
            border-radius: 50%;
            border: 2px solid transparent;
            border-top-color: #22d3ee;
            animation: spin 3s cubic-bezier(0.55, 0.085, 0.68, 0.53) infinite;
        }

        @keyframes spin {
            0% {
                transform: rotate(0deg);
            }

            100% {
                transform: rotate(360deg);
            }
        }

        /* Animation Bulle Chat */
        @keyframes popIn {
            0% {
                opacity: 0;
                transform: translateY(20px) scale(0.9);
            }

            100% {
                opacity: 1;
                transform: translateY(0) scale(1);
            }
        }

        .chat-bubble-anim {
            animation: popIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
            animation-delay: 0.5s;
            opacity: 0;
        }

        @keyframes wordAppear {
            0% {
                opacity: 0;
                transform: translateY(5px);
                filter: blur(2px);
            }

            100% {
                opacity: 1;
                transform: translateY(0);
                filter: blur(0);
            }
        }

        .word-delay {
            display: inline-block;
            opacity: 0;
            animation: wordAppear 0.5s ease-out forwards;
        }

        /* Glassmorphism Apple */
        .glass-nav {
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: saturate(180%) blur(20px);
            -webkit-backdrop-filter: saturate(180%) blur(20px);
        }

        /* Glassmorphism Button */
        .btn-glass {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px) saturate(150%);
            -webkit-backdrop-filter: blur(10px) saturate(150%);
            border: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
            color: white;
            transition: all 0.3s ease;
        }

        .btn-glass:hover {
            background: rgba(255, 255, 255, 0.2);
            box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
            transform: scale(1.05);
            border-color: rgba(255, 255, 255, 0.3);
        }