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<!DOCTYPE html>
<html lang="it">
<head>
    <meta charset="UTF-8" />
    <!-- Viewport ottimizzato per mobile: blocco totale dello zoom e gestione notch -->
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover" />
    <title>AR Neural Link | Vertical Native</title>

    <!-- Tailwind & Fonts -->
    <script src="https://cdn.tailwindcss.com"></script>
    <link href="https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;700&display=swap" rel="stylesheet">
    
    <!-- AR Libraries -->
    <script src="https://aframe.io/releases/1.4.2/aframe.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/mind-ar@1.2.2/dist/mindar-image.prod.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/mind-ar@1.2.2/dist/mindar-image-aframe.prod.js"></script>

    <style>
        :root { 
            --neon-green: #00ff41; 
            --dark-bg: #050505; 
            --error-red: #ff0055;
        }
        
        /* Reset totale per comportamento "App Nativa" */
        html, body { 
            margin: 0; 
            padding: 0;
            width: 100%; 
            height: 100%; 
            background-color: transparent !important; /* Importante per vedere la camera */
            font-family: 'Fira Code', monospace; 
            overflow: hidden; /* Blocca scroll elastico su iOS */
            position: fixed; /* Blocca il body in posizione */
        }

        /* --- ENGINE GRAFICO (Camera e Canvas) --- */
        
        /* 1. Video Webcam: Forziamo il riempimento verticale */
        video {
            position: absolute !important;
            top: 0; left: 0; right: 0; bottom: 0;
            width: 100% !important;
            height: 100% !important;
            object-fit: cover !important; /* Questo è il segreto per il full screen 9:16 */
            z-index: -2 !important;
        }
        
        /* 2. Canvas AR: Sovrapposto perfettamente */
        .a-canvas {
            width: 100% !important;
            height: 100% !important;
            position: absolute !important;
            top: 0; left: 0;
            z-index: -1 !important;
        }
        
        /* FX: Scanlines (Ottimizzate per mobile) */
        .scanlines {
            background: linear-gradient(to bottom, rgba(255,255,255,0), rgba(255,255,255,0) 50%, rgba(0,0,0,0.2) 50%, rgba(0,0,0,0.2));
            background-size: 100% 4px;
            position: fixed; inset: 0; pointer-events: none; 
            z-index: 10;
            opacity: 0.4;
        }

        /* UI Elements */
        .tech-border { 
            border: 1px solid var(--neon-green); 
            box-shadow: 0 0 15px rgba(0, 255, 65, 0.15); 
            background: rgba(0,0,0,0.85); 
            backdrop-filter: blur(8px); 
        }
        
        .a-enter-vr-button { display: none !important; }

        /* --- LOADER STYLE --- */
        #custom-loader {
            position: fixed; inset: 0; z-index: 9999; 
            background: #000; 
            display: flex; flex-direction: column; align-items: center; justify-content: center;
            transition: opacity 0.5s ease-out;
            padding: 20px;
        }

        .glitch-text { animation: glitch 2s infinite; }
        @keyframes glitch {
            0% { transform: translate(0); }
            20% { transform: translate(-2px, 2px); }
            40% { transform: translate(-2px, -2px); }
            60% { transform: translate(2px, 2px); }
            80% { transform: translate(2px, -2px); }
            100% { transform: translate(0); }
        }

        .loader-track {
            width: 100%; max-width: 280px; height: 6px;
            background: #111; margin-top: 20px;
            overflow: hidden; border-radius: 4px;
        }
        .loader-fill {
            height: 100%; background: var(--neon-green); width: 0%;
            transition: width 0.3s;
            box-shadow: 0 0 10px var(--neon-green);
        }

        /* Safe area per iPhone nuovi */
        .safe-area-y {
            padding-top: env(safe-area-inset-top, 20px);
            padding-bottom: env(safe-area-inset-bottom, 20px);
        }
    </style>
</head>
<body>

    <!-- 1. LOADER -->
    <div id="custom-loader">
        <div class="text-[#00ff41] text-5xl font-black tracking-tighter glitch-text mb-4">
            LINK<br>START
        </div>
        <div class="text-white/50 text-xs font-mono uppercase tracking-[0.2em] mb-2">Initializing AR Core...</div>
        <div class="loader-track"><div class="loader-fill" id="progress-bar"></div></div>
        <div id="loading-percent" class="text-[#00ff41] font-mono text-xl mt-2 font-bold">0%</div>
    </div>

    <!-- 2. FX -->
    <div class="scanlines"></div>

    <!-- 3. UI LAYER (Vertical Native) -->
    <div id="ui-layer" class="fixed inset-0 z-[50] flex flex-col justify-between safe-area-y pointer-events-none">
        
        <!-- TOP HEADER -->
        <div class="w-full px-6 py-4 flex justify-between items-center bg-gradient-to-b from-black/80 to-transparent pointer-events-auto">
            <div class="flex flex-col">
                <span class="text-[10px] text-white/60 font-mono tracking-widest">SYSTEM</span>
                <span id="sys-status" class="text-[#00ff41] font-bold text-lg tracking-wider animate-pulse">SCANNING</span>
            </div>
            <a href="./index.html" class="w-10 h-10 flex items-center justify-center border border-[#00ff41]/50 rounded-full bg-black/40 backdrop-blur-md active:scale-95 transition-transform">
                <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="#00ff41" stroke-width="2"><path d="M18 6L6 18M6 6l12 12"/></svg>
            </a>
        </div>

        <!-- MIRINO (Adattato per Verticale) -->
        <div id="aim-overlay" class="absolute top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2 flex flex-col items-center justify-center transition-opacity duration-300">
            <!-- Frame Rettangolare Verticale (9:16 approx) -->
            <div class="relative w-[65vw] h-[100vw] max-w-[300px] max-h-[500px] border border-white/20 rounded-xl">
                <!-- Angoli Tech -->
                <div class="absolute -top-1 -left-1 w-6 h-6 border-t-4 border-l-4 border-[#00ff41]"></div>
                <div class="absolute -top-1 -right-1 w-6 h-6 border-t-4 border-r-4 border-[#00ff41]"></div>
                <div class="absolute -bottom-1 -left-1 w-6 h-6 border-b-4 border-l-4 border-[#00ff41]"></div>
                <div class="absolute -bottom-1 -right-1 w-6 h-6 border-b-4 border-r-4 border-[#00ff41]"></div>
                
                <!-- Mirino centrale -->
                <div class="absolute top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2 w-full flex items-center justify-center">
                    <div class="w-12 h-[1px] bg-[#00ff41]/50"></div>
                    <div class="h-12 w-[1px] bg-[#00ff41]/50 absolute"></div>
                </div>
            </div>
            <div class="mt-4 bg-black/60 backdrop-blur px-4 py-2 rounded border border-[#00ff41]/30">
                <p class="text-[#00ff41] text-xs font-bold tracking-widest uppercase">Inquadra il Marker</p>
            </div>
        </div>

        <!-- BOTTOM CONTROLS -->
        <div class="w-full px-6 pb-8 pointer-events-auto flex flex-col items-center bg-gradient-to-t from-black/90 to-transparent">
            <!-- Pulsante Audio Enorme (Pollice friendly) -->
            <button id="audio-btn" class="w-full max-w-sm py-5 bg-[#00ff41]/10 border border-[#00ff41] text-[#00ff41] font-bold text-lg uppercase tracking-[0.2em] rounded active:bg-[#00ff41] active:text-black transition-all mb-4 flex items-center justify-center gap-3 backdrop-blur-md">
                <span>🔊</span>
                <span id="audio-text">Attiva Audio</span>
            </button>
            <div class="text-[10px] text-white/40 font-mono">NEURAL_LINK v2.4.0 // VERTICAL_MODE</div>
        </div>
    </div>

    <!-- 4. AR SCENE (VERTICAL SETUP) -->
    <!-- Nota: missTolerance aumentato per mantenere il tracking più stabile mentre ci si muove -->
    <a-scene 
        mindar-image="imageTargetSrc: img/targets.mind; filterMinCF:0.0001; filterBeta: 0.001; uiLoading: no; uiScanning: no; missTolerance: 10; warmupTolerance: 5" 
        color-space="sRGB" 
        renderer="colorManagement: true, physicallyCorrectLights, highRefreshRate: true" 
        vr-mode-ui="enabled: false" 
        device-orientation-permission-ui="enabled: false">
        
        <a-assets>
            <video id="vid" src="./img/video.mp4" preload="auto" loop muted playsinline webkit-playsinline crossorigin="anonymous"></video>
        </a-assets>

        <a-camera position="0 0 0" look-controls="enabled: false"></a-camera>

        <a-entity id="example-target" mindar-image-target="targetIndex: 0">
            <!-- 
                GEOMETRIA VERTICALE (9:16)
                Width: 1 (Largo quanto il target fisico)
                Height: 1.777 (Proporzione 16:9 in verticale, cioè 1 * 16 / 9)
                Questo forza il video ad apparire come uno schermo smartphone verticale fluttuante.
            -->
            <a-entity id="myVid" 
                geometry="primitive: plane; width: 1; height: 1.777" 
                material="src: #vid; shader: flat; transparent: true; opacity: 1" 
                position="0 0 0">
            </a-entity>
            
            <!-- Cornice Cyberpunk Verticale -->
            <!-- Top Bar -->
            <a-plane position="0 0.9 0" width="1.05" height="0.02" color="#00ff41" material="shader: flat"></a-plane>
            <!-- Bottom Bar -->
            <a-plane position="0 -0.9 0" width="1.05" height="0.02" color="#00ff41" material="shader: flat"></a-plane>
            <!-- Left Bar -->
            <a-plane position="-0.52 0 0" width="0.02" height="1.8" color="#00ff41" material="shader: flat"></a-plane>
            <!-- Right Bar -->
            <a-plane position="0.52 0 0" width="0.02" height="1.8" color="#00ff41" material="shader: flat"></a-plane>
            
            <!-- Elementi decorativi agli angoli -->
            <a-plane position="-0.52 0.9 0" width="0.1" height="0.02" color="white" material="shader: flat"></a-plane>
            <a-plane position="0.52 -0.9 0" width="0.1" height="0.02" color="white" material="shader: flat"></a-plane>

        </a-entity>
    </a-scene>

    <!-- 5. LOGIC -->
    <script>
        const video = document.querySelector("#vid");
        const target = document.querySelector("#example-target");
        const statusText = document.querySelector("#sys-status");
        const aimOverlay = document.querySelector("#aim-overlay"); 
        const audioBtn = document.querySelector("#audio-btn");
        const audioText = document.querySelector("#audio-text");
        const loader = document.querySelector("#custom-loader");
        const loadingPercent = document.querySelector("#loading-percent");
        const progressBar = document.querySelector("#progress-bar");
        const scene = document.querySelector("a-scene");

        let isAudioEnabled = false;
        let loadProgress = 0;

        // Simulazione caricamento rapido
        const loadInterval = setInterval(() => {
            loadProgress += 2;
            if(loadProgress > 100) loadProgress = 100;
            loadingPercent.innerText = loadProgress + "%";
            progressBar.style.width = loadProgress + "%";
            
            if(loadProgress >= 100) clearInterval(loadInterval);
        }, 30);

        // AR PRONTA
        scene.addEventListener("arReady", () => {
            console.log("AR System Ready");
            // Chiudi loader
            setTimeout(() => {
                loader.style.opacity = "0";
                setTimeout(() => loader.style.display = "none", 500);
            }, 500);
        });

        // ERROR HANDLING
        scene.addEventListener("arError", (ev) => {
            alert("Errore fotocamera: controlla i permessi!");
        });

        // TARGET FOUND
        target.addEventListener("targetFound", () => {
            console.log("Found");
            video.play();
            statusText.innerText = "LOCKED";
            statusText.style.color = "#fff";
            statusText.classList.remove("animate-pulse");
            aimOverlay.style.opacity = "0";
        });

        // TARGET LOST
        target.addEventListener("targetLost", () => {
            console.log("Lost");
            video.pause();
            statusText.innerText = "SEARCHING";
            statusText.style.color = "#00ff41";
            statusText.classList.add("animate-pulse");
            aimOverlay.style.opacity = "1";
        });

        // AUDIO TOGGLE
        audioBtn.addEventListener('click', () => {
            if (!isAudioEnabled) {
                video.muted = false;
                isAudioEnabled = true;
                audioText.innerText = "AUDIO ON";
                audioBtn.classList.add("bg-[#00ff41]", "text-black");
                audioBtn.classList.remove("bg-[#00ff41]/10", "text-[#00ff41]");
                
                // Feedback aptico (vibrazione) se supportato
                if(navigator.vibrate) navigator.vibrate(50);
                
                setTimeout(() => {
                    audioBtn.style.opacity = "0";
                    audioBtn.style.pointerEvents = "none";
                }, 1500);
            }
        });
    </script>
</body>
</html>