.hero {
            position: relative;
            width: 100%;
            height: 100vh;
            background: #0a0a0a;
            overflow: hidden;
        }

        /* ===== FLÈCHES ===== */
        .arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            font-size: 40px;
            cursor: pointer;
            z-index: 1000;
            color: white;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 255, 255, 0.2);
            backdrop-filter: blur(10px);
            border: 2px solid rgba(0, 255, 255, 0.5);
            border-radius: 50%;
            transition: all 0.3s ease;
            pointer-events: auto;
        }

        .arrow:hover {
            background: #00ffff;
            color: black;
            transform: translateY(-50%) scale(1.2);
            box-shadow: 0 0 30px #00ffff;
        }

        .arrow.left { left: 30px; }
        .arrow.right { right: 30px; }

        /* ===== VIDEO CHAIN ===== */
        .video-chain {
            position: absolute;
            right: 120px;
            top: 50%;
            transform: translateY(-50%);
            height: 400px;
            overflow: hidden;
            padding: 10px;
            pointer-events: auto;
            background: rgba(0, 255, 255, 0.15);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            border: 1px solid rgba(0, 255, 255, 0.4);
            box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
            z-index: 50;
        }

        .video-scroll {
            display: flex;
            flex-direction: column;
            gap: 15px;
            pointer-events: auto;
            animation: scrollVideos 15s linear infinite;
        }

        .video-thumb {
            width: 140px;
            height: 90px;
            border-radius: 10px;
            overflow: hidden;
            cursor: pointer;
            pointer-events: auto;
            border: 2px solid transparent;
            transition: 0.3s;
            position: relative;
        }

        .video-thumb::before {
            content: '▶';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            color: #00ffff;
            font-size: 20px;
            opacity: 0;
            transition: 0.3s;
            z-index: 2;
            text-shadow: 0 0 10px #00ffff;
        }

        .video-thumb:hover {
            border-color: #00ffff;
            transform: scale(1.05);
            box-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
        }

        .video-thumb:hover::before {
            opacity: 1;
        }

        .video-thumb video {
            width: 100%;
            height: 100%;
            object-fit: cover;
            pointer-events: none;
            transition: 0.3s;
        }

        .video-thumb:hover video {
            filter: brightness(1.2);
        }

        @keyframes scrollVideos {
            0% { transform: translateY(0); }
            100% { transform: translateY(-50%); }
        }

        /* ===== MODAL VIDÉO ===== */
        .video-modal {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.95);
            backdrop-filter: blur(10px);
            z-index: 10000;
            align-items: center;
            justify-content: center;
        }

        .video-modal.active {
            display: flex;
        }

        .modal-content {
            position: relative;
            width: 90%;
            max-width: 1200px;
            background: #000;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.8);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .close-modal {
            position: absolute;
            top: 20px;
            right: 30px;
            font-size: 40px;
            color: white;
            cursor: pointer;
            z-index: 10;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 0, 0, 0.6);
            border-radius: 50%;
            transition: 0.3s;
            line-height: 1;
        }

        .close-modal:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: scale(1.1);
        }

        #modalVideo {
            width: 100%;
            height: auto;
            max-height: 80vh;
            display: block;
        }

        body.modal-open {
            overflow: hidden;
        }

        /* ======= SCÈNE 5D ======= */
  
        .hyperspace-core {
            position: absolute;
            top: 50%; left: 50%;
            width: 200vh; height: 200vh;
            transform: translate(-50%,-50%) rotateX(75deg) rotateY(45deg) rotateZ(30deg);
            transform-style: preserve-3d;
            animation: rotateHyperspace 60s infinite linear;
        }

        .quantum-ring, .quantum-ring-2, .quantum-ring-3 {
            position: absolute; top: 50%; left: 50%; border-radius: 50%;
            transform: translate(-50%,-50%);
            box-shadow: 0 0 50px rgba(0,255,255,0.3);
        }

        .quantum-ring { width: 100%; height: 100%; border: 3px solid rgba(0,255,255,0.2); animation: quantumPulse 8s infinite ease-in-out; }
        .quantum-ring-2 { width: 80%; height: 80%; border: 2px solid rgba(255,0,255,0.2); transform: translate(-50%,-50%) rotateX(90deg); animation: quantumPulse2 10s infinite ease-in-out; }
        .quantum-ring-3 { width: 60%; height: 60%; border: 2px solid rgba(0,255,150,0.2); transform: translate(-50%,-50%) rotateY(90deg); animation: quantumPulse3 12s infinite ease-in-out; }

        .neural-network { position: absolute; top: 0; left: 0; width: 100%; height: 100%; transform-style: preserve-3d; }
        .neuron { position: absolute; width: 6px; height: 6px; background: #00ffff; border-radius: 50%; box-shadow: 0 0 30px #00ffff; animation: neuronPulse 3s ease-in-out infinite; }
        .connection-line { position: absolute; height: 2px; background: linear-gradient(90deg, transparent, #00ffff, transparent); transform-origin: left center; animation: connectionFlow 4s linear infinite; }

        .dimensional-portal { position: absolute; top: 50%; left: 50%; width: 150vh; height: 150vh; transform: translate(-50%,-50%) rotateX(80deg) rotateY(35deg); transform-style: preserve-3d; }
        .portal-ring { position: absolute; top: 50%; left: 50%; width: 100%; height: 100%; border: 4px solid rgba(255,255,255,0.1); border-radius: 50%; border-top-color: #00ffff; border-bottom-color: #ff00ff; animation: portalSpin 20s linear infinite; }
        .portal-ring-2 { position: absolute; top: 50%; left: 50%; width: 80%; height: 80%; border: 4px solid rgba(255,255,255,0.1); border-radius: 50%; border-left-color: #00ffff; border-right-color: #ff00ff; transform: rotateZ(45deg); animation: portalSpinReverse 15s linear infinite; }

        .quantum-flow { position: absolute; top: 0; left: 0; width: 100%; height: 100%; overflow: hidden; }
        .data-stream { position: absolute; width: 2px; height: 100px; background: linear-gradient(to top, transparent, #00ffff, transparent); animation: dataFlow 3s linear infinite; opacity: 0.5; }

        .ai-particles { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
        .ai-particle { position: absolute; width: 8px; height: 8px; background: white; border-radius: 50%; filter: blur(2px); animation: aiFloat 15s infinite linear; }

        /* ===== SLIDER SHOW ===== */
        .slider-container { 
            position: relative; 
            width: 100%; 
            height: 100%; 
            display: flex; 
            align-items: center; 
            justify-content: center; 
            z-index: 10; 
            pointer-events: none; 
        }
        .slider-show {
            position: relative;
            width: 55%; max-width: 980px; height: 55vh; min-height: 400px;
            transform-style: preserve-3d;
            pointer-events: auto;
            box-shadow: 0 30px 80px rgba(0,0,0,0.8);
        }

        .slide-futuristic {
            position: absolute; top: 0; left: 0; width: 100%; height: 100%;
            opacity: 0; visibility: hidden;
            border-radius: 30px; overflow: hidden;
            box-shadow: 0 30px 60px rgba(0,0,0,0.8), 0 0 0 3px rgba(0,255,255,0.5);
            transform: translateZ(-200px) scale(0.7);
            transition: all 1.2s cubic-bezier(0.23, 1, 0.32, 1);
            backdrop-filter: blur(5px); background: rgba(0,0,0,0.3); border: 1px solid rgba(0,255,255,0.2);
        }

        .slide-futuristic.active { 
            opacity: 1; visibility: visible; 
            transform: translateZ(0) scale(1); 
            box-shadow: 0 40px 80px rgba(0,0,0,0.8), 0 0 0 4px rgba(0,255,255,0.8);
        }

        .slide-img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 12s ease; opacity: 0.9; }
        .slide-futuristic.active .slide-img { transform: scale(1.1); }

        .ai-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(135deg, rgba(0,255,255,0.1), rgba(0,0,0,0.7), rgba(255,0,255,0.1)); z-index: 2; mix-blend-mode: overlay; }
        .ai-content { position: absolute; bottom: 30px; left: 30px; right: 30px; z-index: 3; transform: translateY(50px); opacity: 0; transition: all 0.8s ease 0.3s; }
        .slide-futuristic.active .ai-content { transform: translateY(0); opacity: 1; }
        .ai-badge { display: inline-block; padding: 5px 15px; background: rgba(0,255,255,0.2); backdrop-filter: blur(10px); border: 1px solid #00ffff; border-radius: 30px; color: #00ffff; font-size: 0.8rem; letter-spacing: 2px; margin-bottom: 15px; }
        .ai-title { font-size: clamp(1.5rem,4vw,2.5rem); font-weight: 800; color: white; text-shadow: 0 0 20px rgba(0,255,255,0.5), 2px 2px 4px rgba(0,0,0,0.5); margin-bottom: 10px; line-height: 1.2; }
        .ai-subtitle { color: rgba(255,255,255,0.9); font-size: 0.9rem; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
        .ai-subtitle::before { content: '→'; color: #00ffff; font-size: 1.2rem; }
        .ai-btn { padding: 12px 30px; background: transparent; color: #00ffff; border: 2px solid #00ffff; border-radius: 40px; font-size: 0.9rem; font-weight: 600; letter-spacing: 2px; cursor: pointer; position: relative; overflow: hidden; transition: all 0.3s ease; z-index: 1; }
        .ai-btn::before { content: ''; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%) scale(0); width: 100%; height: 100%; background: #00ffff; border-radius: 40px; z-index: -1; transition: transform 0.5s ease; }
        .ai-btn:hover { color: #000; box-shadow: 0 0 30px #00ffff; }
        .ai-btn:hover::before { transform: translate(-50%,-50%) scale(1.5); }

        /* ===== NAVIGATION DOTS ===== */
        .nav-quantum {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 20px;
            z-index: 100;
            padding: 15px 30px;
            background: rgba(0, 255, 255, 0.15);
            backdrop-filter: blur(15px);
            border-radius: 60px;
            border: 1px solid rgba(0, 255, 255, 0.4);
            box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
            pointer-events: auto;
        }

        .quantum-dot {
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: transparent;
            border: 2px solid #00ffff;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            pointer-events: auto;
            box-shadow: 0 0 15px rgba(0, 255, 255, 0.3);
        }

        .quantum-dot::before {
            content: '';
            position: absolute;
            top: -4px;
            left: -4px;
            right: -4px;
            bottom: -4px;
            border-radius: 50%;
            border: 1px solid rgba(0, 255, 255, 0.3);
            opacity: 0;
            transition: 0.3s;
        }

        .quantum-dot:hover {
            transform: scale(1.3);
            background: rgba(0, 255, 255, 0.3);
            border-color: white;
            box-shadow: 0 0 25px #00ffff;
        }

        .quantum-dot.active {
            background: #00ffff;
            transform: scale(1.5);
            border-color: white;
            box-shadow: 0 0 40px #00ffff, 0 0 60px rgba(0, 255, 255, 0.5);
        }

        .quantum-dot.active::before {
            opacity: 1;
            animation: dotPulse 2s infinite;
        }

        .dot-pulse {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background: inherit;
        }

        @keyframes dotPulse {
            0% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
            100% { transform: translate(-50%, -50%) scale(2); opacity: 0; }
        }

        /* ===== INDICATEUR DIMENSIONNEL ===== */
        .dimension-indicator {
            position: absolute;
            top: 15%;
            left: 120px;
            z-index: 100;
            width: 100px;
            height: 100px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0, 255, 255, 0.15);
            backdrop-filter: blur(15px);
            border-radius: 50%;
            border: 2px solid rgba(0, 255, 255, 0.5);
            box-shadow: 0 0 40px rgba(0, 255, 255, 0.3);
            pointer-events: auto;
            transition: all 0.5s ease;
        }

        .dimension-indicator:hover {
            transform: scale(1.1) rotate(180deg);
            border-color: #00ffff;
            box-shadow: 0 0 60px #00ffff;
        }

        .dimension-content {
            text-align: center;
            transform: rotate(0deg);
            transition: 0.5s;
        }

        .dimension-indicator:hover .dimension-content {
            transform: rotate(-180deg);
        }

        .dimension-number {
            font-size: 3rem;
            font-weight: 900;
            display: block;
            color: #00ffff;
            text-shadow: 0 0 20px #00ffff;
            line-height: 1;
            animation: dimensionPulse 2s infinite;
        }

        .dimension-ring {
            position: absolute;
            top: -5px;
            left: -5px;
            right: -5px;
            bottom: -5px;
            border-radius: 50%;
            border: 2px solid transparent;
            border-top-color: #00ffff;
            border-bottom-color: #ff00ff;
            animation: dimensionRing 3s linear infinite;
            pointer-events: none;
        }

        @keyframes dimensionRing {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        @keyframes dimensionPulse {
            0%, 100% { text-shadow: 0 0 20px #00ffff; }
            50% { text-shadow: 0 0 40px #00ffff, 0 0 60px #00ffff; }
        }

        /* ===== ANIMATIONS ===== */
        @keyframes rotateHyperspace { 
            0% { transform: translate(-50%,-50%) rotateX(75deg) rotateY(45deg) rotateZ(30deg); } 
            100% { transform: translate(-50%,-50%) rotateX(435deg) rotateY(405deg) rotateZ(390deg); } 
        }

        @keyframes quantumPulse {
            0%,100% { transform: translate(-50%,-50%) scale(1); opacity: 0.5; }
            50% { transform: translate(-50%,-50%) scale(1.2); opacity: 1; }
        }

        @keyframes quantumPulse2 {
            0%,100% { transform: translate(-50%,-50%) rotateX(90deg) scale(1); }
            50% { transform: translate(-50%,-50%) rotateX(90deg) scale(1.3); }
        }

        @keyframes quantumPulse3 {
            0%,100% { transform: translate(-50%,-50%) rotateY(90deg) scale(1); }
            50% { transform: translate(-50%,-50%) rotateY(90deg) scale(1.4); }
        }

        @keyframes neuronPulse {
            0%,100% { transform: scale(1); opacity: 0.5; }
            50% { transform: scale(2); opacity: 1; }
        }

        @keyframes connectionFlow {
            0% { opacity: 0; transform: scaleX(0); }
            50% { opacity: 1; transform: scaleX(1); }
            100% { opacity: 0; transform: scaleX(0); }
        }

        @keyframes portalSpin {
            0% { transform: translate(-50%,-50%) rotate(0deg); }
            100% { transform: translate(-50%,-50%) rotate(360deg); }
        }

        @keyframes portalSpinReverse {
            0% { transform: translate(-50%,-50%) rotateZ(45deg) rotate(0deg); }
            100% { transform: translate(-50%,-50%) rotateZ(45deg) rotate(-360deg); }
        }

        @keyframes dataFlow {
            0% { transform: translateY(-100%); opacity: 0; }
            50% { opacity: 1; }
            100% { transform: translateY(100vh); opacity: 0; }
        }

        @keyframes aiFloat {
            0% { transform: translateZ(-1000px) translateX(-500px) translateY(-500px); opacity: 0; }
            10% { opacity: 1; }
            90% { opacity: 1; }
            100% { transform: translateZ(1000px) translateX(500px) translateY(500px); opacity: 0; }
        }

        /* ===== RESPONSIVE ===== */
        @media(max-width: 1024px) {
            .slider-show { width: 60%; height: 50vh; }
            .video-chain { right: 20px; height: 350px; }
            .video-thumb { width: 120px; height: 77px; }
        }

        @media(max-width: 768px) {
            .slider-show { width: 80%; height: 40vh; min-height: 350px; }
            .dimension-indicator { top: 20px; left: 20px; width: 80px; height: 80px; }
            .dimension-number { font-size: 2rem; }
            .video-chain { display: none; }
            .arrow.left { left: 15px; }
            .arrow.right { right: 15px; }
            .nav-quantum { bottom: 20px; padding: 12px 20px; gap: 15px; }
            .quantum-dot { width: 14px; height: 14px; }
        }