{% extends 'base.html' %}
{% load static %}
{% load i18n %}

{% block title %}{% trans "Your 3D Avatar - Virtual Fitting System" %}{% endblock %}

{% block extra_css %}
<style>
    /* Avatar page overrides — dark theme for the 3D viewer area */
    .avatar-page {
        display: flex;
        min-height: calc(100vh - 64px);
    }

    /* Sidebar */
    .avatar-sidebar {
        width: 320px;
        min-width: 320px;
        max-height: calc(100vh - 64px);
        background: linear-gradient(160deg, #0f1729 0%, #1B3A6B 60%, #16213e 100%);
        border-right: 1px solid rgba(255, 255, 255, 0.07);
        overflow-y: auto;
        position: relative;
        z-index: 10;
        scrollbar-width: thin;
        scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
    }

    .avatar-sidebar::-webkit-scrollbar {
        width: 4px;
    }

    .avatar-sidebar::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 2px;
    }

    .sidebar-inner {
        padding: 24px 20px;
    }

    /* Canvas area */
    .avatar-canvas-area {
        flex: 1;
        position: relative;
        overflow: hidden;
        background: linear-gradient(135deg, #0f1729 0%, #1a1a2e 50%, #16213e 100%);
    }

    .avatar-canvas-area canvas {
        display: block;
        width: 100% !important;
        height: 100% !important;
    }

    /* Section styling */
    .av-section {
        margin-bottom: 20px;
        animation: avFadeUp 0.5s ease both;
    }

    .av-section:nth-child(2) {
        animation-delay: 0.05s;
    }

    .av-section:nth-child(3) {
        animation-delay: 0.10s;
    }

    .av-section:nth-child(4) {
        animation-delay: 0.15s;
    }

    .av-section-header {
        display: flex;
        align-items: center;
        gap: 8px;
        margin-bottom: 10px;
    }

    .av-section-icon {
        width: 28px;
        height: 28px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 13px;
        flex-shrink: 0;
    }

    .av-section-icon.skin {
        background: rgba(201, 169, 110, 0.15);
    }

    .av-section-icon.shirt {
        background: rgba(99, 179, 237, 0.12);
    }

    .av-section-icon.pants {
        background: rgba(154, 117, 255, 0.12);
    }

    .av-section-title {
        font-size: 10px;
        font-weight: 500;
        letter-spacing: 2.5px;
        text-transform: uppercase;
        color: rgba(255, 255, 255, 0.45);
    }

    /* Skin swatches grid */
    .av-swatches-skin {
        display: grid;
        grid-template-columns: repeat(6, 1fr);
        gap: 7px;
    }

    .av-swatches-clothes {
        display: grid;
        grid-template-columns: repeat(6, 1fr);
        gap: 7px;
    }

    .av-swatch {
        aspect-ratio: 1;
        border-radius: 50%;
        cursor: pointer;
        border: 2px solid transparent;
        transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
        position: relative;
    }

    .av-swatch:hover {
        transform: scale(1.2);
        box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
    }

    .av-swatch.active {
        border-color: #fff;
        box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.25), 0 4px 14px rgba(0, 0, 0, 0.5);
        transform: scale(1.1);
    }

    .av-swatch[data-tip]:hover::after {
        content: attr(data-tip);
        position: absolute;
        bottom: calc(100% + 6px);
        left: 50%;
        transform: translateX(-50%);
        background: rgba(0, 0, 0, 0.9);
        color: #fff;
        font-size: 10px;
        white-space: nowrap;
        padding: 3px 8px;
        border-radius: 4px;
        pointer-events: none;
        z-index: 300;
    }

    .av-suggest-label {
        font-size: 9px;
        letter-spacing: 1.5px;
        text-transform: uppercase;
        color: #c9a96e;
        margin-bottom: 7px;
        display: flex;
        align-items: center;
        gap: 5px;
    }

    .av-suggest-label::before {
        content: '';
        display: inline-block;
        width: 18px;
        height: 1px;
        background: #c9a96e;
        opacity: 0.5;
    }

    .av-divider {
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.07), transparent);
        margin: 4px 0 20px;
    }

    /* Info cards inside sidebar */
    .av-info-card {
        background: rgba(255, 255, 255, 0.06);
        border-radius: 12px;
        padding: 14px 16px;
        margin-bottom: 12px;
        border: 1px solid rgba(255, 255, 255, 0.08);
    }

    .av-info-label {
        font-size: 9px;
        letter-spacing: 2px;
        text-transform: uppercase;
        color: rgba(255, 255, 255, 0.35);
        margin-bottom: 4px;
    }

    .av-info-value {
        color: #fff;
        font-weight: 700;
        font-size: 24px;
    }

    .av-info-sub {
        color: rgba(255, 255, 255, 0.4);
        font-size: 11px;
        margin-top: 2px;
    }

    /* Debug overlay */
    #av-debug {
        position: absolute;
        bottom: 12px;
        right: 12px;
        background: rgba(0, 0, 0, 0.75);
        color: #4eff91;
        font-size: 10px;
        font-family: monospace;
        padding: 10px 14px;
        border-radius: 6px;
        z-index: 50;
        max-width: 460px;
        line-height: 1.8;
        pointer-events: none;
    }

    /* Swatch pop animation */
    @keyframes avSwatchPop {
        from {
            opacity: 0;
            transform: scale(0.7);
        }

        to {
            opacity: 1;
            transform: scale(1);
        }
    }

    .av-swatch.pop {
        animation: avSwatchPop 0.22s ease both;
    }

    @keyframes avFadeUp {
        from {
            opacity: 0;
            transform: translateY(10px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    /* Back link */
    .av-back-link {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        color: rgba(255, 255, 255, 0.5);
        font-size: 12px;
        font-weight: 500;
        text-decoration: none;
        margin-bottom: 20px;
        transition: color 0.2s;
    }

    .av-back-link:hover {
        color: #fff;
    }

    /* Responsive */
    @media (max-width: 768px) {
        .avatar-page {
            flex-direction: column;
        }

        .avatar-sidebar {
            width: 100%;
            min-width: 100%;
            max-height: none;
            border-right: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.07);
        }

        .avatar-canvas-area {
            min-height: 50vh;
        }
    }
</style>
{% endblock %}

{% block content %}
<div class="avatar-page">

    <!-- ===== SIDEBAR ===== -->
    <div class="avatar-sidebar">
        <div class="sidebar-inner">

            <!-- Back link -->
            <a href="{% url 'fitting_system:recommendations' body_scan.session_id %}" class="av-back-link">
                <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7"></path>
                </svg>
                {% trans "Back to Recommendations" %}
            </a>

            <!-- Info Cards -->
            <div class="av-info-card">
                <div class="av-info-label">{% trans "AI Recommended Size" %}</div>
                <div class="av-info-value">{{ recommended_size }}</div>
                <div class="av-info-sub">{% trans "Based on your body scan" %}</div>
            </div>

            <div class="av-info-card" style="display: flex; align-items: center; gap: 12px;">
                <div class="av-swatch"
                    style="background:#{{ skin_tone_hex }}; width: 40px; height: 40px; flex-shrink: 0; cursor: default; border: 2px solid rgba(255,255,255,0.2);">
                </div>
                <div>
                    <div class="av-info-label">{% trans "Your Skin Tone" %}</div>
                    <div style="color: #fff; font-weight: 600; font-size: 15px;">{{ skin_tone_display }}</div>
                    <div class="av-info-sub">{{ undertone_display }} {% trans "undertone" %}</div>
                </div>
            </div>

            <div class="av-divider"></div>

            <!-- SKIN TONE SWATCHES -->
            <div class="av-section">
                <div class="av-section-header">
                    <div class="av-section-title">{% trans "Skin Tone" %}</div>
                </div>
                <div class="av-swatches-skin" id="avSkinSwatches">
                    <div class="av-swatch" style="background:#fde8d0" data-hex="fde8d0" data-skin="0"
                        data-tip="{% trans 'Very Light' %}"></div>
                    <div class="av-swatch" style="background:#f5cba7" data-hex="f5cba7" data-skin="1" data-tip="{% trans 'Light' %}">
                    </div>
                    <div class="av-swatch" style="background:#e8a87c" data-hex="e8a87c" data-skin="2"
                        data-tip="{% trans 'Intermediate' %}">
                    </div>
                    <div class="av-swatch" style="background:#c68642" data-hex="c68642" data-skin="3" data-tip="{% trans 'Tan' %}">
                    </div>
                    <div class="av-swatch" style="background:#8d5524" data-hex="8d5524" data-skin="4" data-tip="{% trans 'Dark' %}">
                    </div>
                </div>
            </div>

            <div class="av-divider"></div>

            <!-- SHIRT COLORS -->
            <div class="av-section">
                <div class="av-section-header">
                    <div class="av-section-title">{% trans "T-Shirt Color" %}</div>
                </div>
                <div class="av-suggest-label" id="avShirtSuggest">{% trans "Suggested for your skin tone" %}</div>
                <div class="av-swatches-clothes" id="avShirtSwatches"></div>
            </div>

            <div class="av-divider"></div>

            <!-- PANTS COLORS -->
            <div class="av-section">
                <div class="av-section-header">
                    <div class="av-section-title">{% trans "Pants Color" %}</div>
                </div>
                <div class="av-suggest-label" id="avPantsSuggest">{% trans "Suggested for your skin tone" %}</div>
                <div class="av-swatches-clothes" id="avPantsSwatches"></div>
            </div>

            <div class="av-divider"></div>

            <!-- Footer hint -->
            <div style="text-align: center; padding: 8px 0;">
                <p style="font-size: 10px; color: rgba(255,255,255,0.2); line-height: 1.7;">
                    <span style="display: block; color: rgba(255,255,255,0.3); margin-bottom: 2px;">{% trans "Drag to rotate · Scroll to zoom" %}</span>
                    {% trans "Colors update with your skin tone" %}
                </p>
            </div>
        </div>
    </div>

    <!-- ===== 3D CANVAS ===== -->
    <div class="avatar-canvas-area" id="av-canvas-container">
        <div id="av-debug">âڈ³ {% trans "Loading 3D model..." %}</div>
    </div>

</div>
{% endblock %}

{% block extra_js %}
<script type="importmap">
{
    "imports": {
        "three": "https://unpkg.com/three@0.160.0/build/three.module.js",
        "three/addons/": "https://unpkg.com/three@0.160.0/examples/jsm/"
    }
}
</script>

<script type="module">
    import * as THREE from 'three';
    import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
    import { GLTFLoader } from 'three/addons/loaders/GLTFLoader.js';

    // ── Django context ──
    const INITIAL_SKIN_INDEX = {{ skin_tone_index }};
    const GENDER = '{{ gender }}';
    const MODEL_URL = GENDER === 'women'
        ? '{% static "avatar/FEMALE.glb" %}'
        : '{% static "avatar/MALE.glb" %}';

    const dbg = document.getElementById('av-debug');
    const container = document.getElementById('av-canvas-container');

    // ────────────────────────────────────────────────────────────────
    //  DYNAMIC PALETTES — injected from Django / color_palettes.py
    // ────────────────────────────────────────────────────────────────
    const SKIN_TONE_KEYS = ['very_light', 'light', 'intermediate', 'tan', 'dark'];
    const PALETTES_BY_KEY = JSON.parse('{{ palettes_json|escapejs }}');
    const INITIAL_SKIN_KEY = '{{ skin_tone_key }}';
    const REC_SHIRT_HEX = '{{ rec_shirt_hex }}';
    const REC_PANTS_HEX = '{{ rec_pants_hex }}';

    // Map skin swatch index → skin tone key
    const INDEX_TO_KEY = { 0: 'very_light', 1: 'light', 2: 'intermediate', 3: 'tan', 4: 'dark' };

    // ────────────────────────────────────────────────────────────────
    //  THREE.JS SETUP
    // ────────────────────────────────────────────────────────────────
    const scene = new THREE.Scene();
    scene.background = new THREE.Color(0x0f1729);

    const camera = new THREE.PerspectiveCamera(
        36,
        Math.max(container.clientWidth, 1) / Math.max(container.clientHeight, 1),
        0.1, 100
    );
    camera.position.set(0, 1.0, 6);

    const renderer = new THREE.WebGLRenderer({ antialias: true });
    renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
    renderer.setSize(Math.max(container.clientWidth, 1), Math.max(container.clientHeight, 1));
    renderer.shadowMap.enabled = true;
    renderer.shadowMap.type = THREE.PCFSoftShadowMap;
    renderer.toneMapping = THREE.ACESFilmicToneMapping;
    renderer.toneMappingExposure = 1.1;
    container.appendChild(renderer.domElement);

    const controls = new OrbitControls(camera, renderer.domElement);
    controls.target.set(0, 1.0, 0);
    controls.enableDamping = true;
    controls.dampingFactor = 0.07;
    controls.minDistance = 1.0;
    controls.maxDistance = 20;
    controls.update();

    scene.add(new THREE.AmbientLight(0xffffff, 0.6));
    const key = new THREE.DirectionalLight(0xfff5e6, 1.4);
    key.position.set(3, 6, 4); key.castShadow = true;
    key.shadow.mapSize.set(1024, 1024); scene.add(key);
    const fill = new THREE.DirectionalLight(0xd0e8ff, 0.6);
    fill.position.set(-3, 3, -2); scene.add(fill);
    const rim = new THREE.DirectionalLight(0xc9a96e, 0.8);
    rim.position.set(0, 4, -4); scene.add(rim);

    const floor = new THREE.Mesh(
        new THREE.CircleGeometry(2.5, 64),
        new THREE.MeshStandardMaterial({ color: 0x16213e, roughness: 0.85, metalness: 0.05, transparent: true, opacity: 0.65 })
    );
    floor.rotation.x = -Math.PI / 2;
    floor.receiveShadow = true;
    scene.add(floor);

    // ────────────────────────────────────────────────────────────────
    //  MESH BUCKETS
    // ────────────────────────────────────────────────────────────────
    const skinMeshes = [];
    const shirtMeshes = [];
    const pantsMeshes = [];
    const lockedMeshes = [];

    function avgWorldY(mesh) {
        const pos = mesh.geometry.attributes.position;
        if (!pos || pos.count === 0) return 0;
        let sum = 0;
        const v = new THREE.Vector3();
        for (let i = 0; i < pos.count; i++) {
            v.fromBufferAttribute(pos, i);
            v.applyMatrix4(mesh.matrixWorld);
            sum += v.y;
        }
        return sum / pos.count;
    }
    function getMat(mesh) {
        return Array.isArray(mesh.material) ? mesh.material[0] : mesh.material;
    }

    function applySkinColor(hexStr) {
        const hex = parseInt(hexStr, 16);
        const r = ((hex >> 16) & 0xff) / 255;
        const g = ((hex >> 8) & 0xff) / 255;
        const b = (hex & 0xff) / 255;
        skinMeshes.forEach(mesh => {
            const mats = Array.isArray(mesh.material) ? mesh.material : [mesh.material];
            mats.forEach(mat => { mat.color.setRGB(r, g, b); mat.needsUpdate = true; });
        });
        lockedMeshes.forEach(applyLocked);
    }

    function applyClothingColor(meshList, hexStr) {
        const hex = parseInt(hexStr, 16);
        meshList.forEach(mesh => {
            const mats = Array.isArray(mesh.material) ? mesh.material : [mesh.material];
            mats.forEach(mat => { mat.color.setHex(hex); mat.map = null; mat.needsUpdate = true; });
        });
        lockedMeshes.forEach(applyLocked);
    }

    function applyLocked(entry) {
        const mats = Array.isArray(entry.mesh.material) ? entry.mesh.material : [entry.mesh.material];
        mats.forEach(mat => { mat.color.setHex(entry.hexColor); mat.map = null; mat.needsUpdate = true; });
    }

    // ────────────────────────────────────────────────────────────────
    //  PALETTE UI
    // ────────────────────────────────────────────────────────────────
    let currentShirtHex = null;
    let currentPantsHex = null;

    function buildClothingSwatches(skinKey, defaultShirtHex, defaultPantsHex) {
        const palette = PALETTES_BY_KEY[skinKey];
        if (!palette) return;
        const shirtGrid = document.getElementById('avShirtSwatches');
        const pantsGrid = document.getElementById('avPantsSwatches');

        const lightHexes = new Set(['ffffff', 'f5f5f5', 'fffde7', 'e0e0e0', 'cfd8dc', 'e8d5f5', 'b5d8f7', 'f7c5d0', 'bbdefb', 'a5d6a7', 'ef9a9a', 'fff176']);

        // ── Shirt swatches ──
        shirtGrid.innerHTML = '';
        palette.shirts.forEach((item, i) => {
            const sw = document.createElement('div');
            sw.className = 'av-swatch pop';
            sw.style.background = '#' + item.hex;
            sw.style.animationDelay = (i * 0.025) + 's';
            if (lightHexes.has(item.hex)) sw.style.borderColor = 'rgba(255,255,255,0.3)';
            sw.dataset.hex = item.hex;
            sw.dataset.tip = item.tip;
            sw.addEventListener('click', () => {
                shirtGrid.querySelectorAll('.av-swatch').forEach(s => s.classList.remove('active'));
                sw.classList.add('active');
                currentShirtHex = item.hex;
                applyClothingColor(shirtMeshes, item.hex);
            });
            shirtGrid.appendChild(sw);
        });

        // ── Pants swatches ──
        pantsGrid.innerHTML = '';
        palette.pants.forEach((item, i) => {
            const sw = document.createElement('div');
            sw.className = 'av-swatch pop';
            sw.style.background = '#' + item.hex;
            sw.style.animationDelay = (i * 0.025) + 's';
            if (lightHexes.has(item.hex)) sw.style.borderColor = 'rgba(255,255,255,0.3)';
            sw.dataset.hex = item.hex;
            sw.dataset.tip = item.tip;
            sw.addEventListener('click', () => {
                pantsGrid.querySelectorAll('.av-swatch').forEach(s => s.classList.remove('active'));
                sw.classList.add('active');
                currentPantsHex = item.hex;
                applyClothingColor(pantsMeshes, item.hex);
            });
            pantsGrid.appendChild(sw);
        });

        // Auto-select: prefer the Gemini-recommended hex, else first swatch
        const shirtSw = shirtGrid.querySelectorAll('.av-swatch');
        let shirtSelected = false;
        if (defaultShirtHex) {
            shirtSw.forEach(s => { if (s.dataset.hex === defaultShirtHex) { s.classList.add('active'); shirtSelected = true; } });
        }
        if (!shirtSelected && shirtSw[0]) shirtSw[0].classList.add('active');
        currentShirtHex = defaultShirtHex || palette.shirts[0].hex;
        applyClothingColor(shirtMeshes, currentShirtHex);

        const pantsSw = pantsGrid.querySelectorAll('.av-swatch');
        let pantsSelected = false;
        if (defaultPantsHex) {
            pantsSw.forEach(s => { if (s.dataset.hex === defaultPantsHex) { s.classList.add('active'); pantsSelected = true; } });
        }
        if (!pantsSelected && pantsSw[0]) pantsSw[0].classList.add('active');
        currentPantsHex = defaultPantsHex || palette.pants[0].hex;
        applyClothingColor(pantsMeshes, currentPantsHex);
    }

    // ────────────────────────────────────────────────────────────────
    //  LOAD MODEL
    // ────────────────────────────────────────────────────────────────
    new GLTFLoader().load(
        MODEL_URL,
        function (gltf) {
            const model = gltf.scene;

            {
                const box = new THREE.Box3().setFromObject(model);
                const size = box.getSize(new THREE.Vector3());
                model.scale.setScalar(2.0 / Math.max(size.x, size.y, size.z));
                model.updateMatrixWorld(true);
                const box2 = new THREE.Box3().setFromObject(model);
                const cen = box2.getCenter(new THREE.Vector3());
                model.position.set(-cen.x, -box2.min.y, -cen.z);
            }
            scene.add(model);
            model.updateMatrixWorld(true);

            const wb = new THREE.Box3().setFromObject(model);
            const wh = wb.max.y - wb.min.y;
            const minY = wb.min.y;

            const ankleY = minY + wh * 0.11;
            const waistY = minY + wh * 0.47;
            const neckY = minY + wh * 0.80;
            const midY = minY + wh * 0.50;

            const fovRad = THREE.MathUtils.degToRad(camera.fov);
            const camDist = (wh / 2 / Math.tan(fovRad / 2)) * 1.65;
            camera.position.set(0, midY, camDist);
            controls.target.set(0, midY, 0);
            controls.minDistance = camDist * 0.25;
            controls.maxDistance = camDist * 5;
            controls.update();

            const allMeshes = [];
            model.traverse(child => {
                if (!child.isMesh) return;
                child.material = Array.isArray(child.material)
                    ? child.material.map(m => m.clone())
                    : child.material.clone();
                child.castShadow = true;
                child.receiveShadow = true;
                allMeshes.push(child);
            });

            const lockBlack = ['eye', 'lash', 'iris', 'pupil', 'cornea', 'sclera', 'brow', 'eyebrow', 'hair', 'shoe', 'boot', 'sole', 'lace', 'sneaker', 'eyelid'];
            const lockWhite = ['sock'];
            const lockDefault = ['teeth', 'tooth', 'tongue', 'lip', 'mouth', 'gum', 'nose', 'nail'];
            const pantsWords = ['pant', 'trouser', 'jean', 'denim', 'short', 'skirt', 'bottom', 'lower'];
            const shirtWords = ['shirt', 'tee', 'jacket', 'hoodie', 'sweater', 'cloth', 'wear', 'blouse'];

            const unclassified = [];

            allMeshes.forEach(mesh => {
                const n = mesh.name.toLowerCase();
                if (lockBlack.some(w => n.includes(w))) { lockedMeshes.push({ mesh, hexColor: 0x0a0a0a }); return; }
                if (lockWhite.some(w => n.includes(w))) { lockedMeshes.push({ mesh, hexColor: 0xfafafa }); return; }
                if (lockDefault.some(w => n.includes(w))) { return; }
                if (pantsWords.some(w => n.includes(w))) { pantsMeshes.push(mesh); return; }
                if (shirtWords.some(w => n.includes(w))) { shirtMeshes.push(mesh); return; }

                const yc = avgWorldY(mesh);
                const mat = getMat(mesh);
                const { r, g, b } = mat ? mat.color : { r: 0.5, g: 0.5, b: 0.5 };
                const isDark = (r + g + b) < 0.8 || (r < 0.25 && g < 0.25);

                if (yc < ankleY) { return; }
                if (yc <= waistY) { isDark ? pantsMeshes.push(mesh) : unclassified.push(mesh); return; }
                if (yc <= neckY) { isDark ? shirtMeshes.push(mesh) : unclassified.push(mesh); return; }
                unclassified.push(mesh);
            });

            unclassified.forEach(m => { skinMeshes.push(m); });

            if (skinMeshes.length === 0) {
                const used = new Set([...pantsMeshes, ...shirtMeshes, ...lockedMeshes.map(e => e.mesh)]);
                allMeshes.forEach(m => { if (!used.has(m)) skinMeshes.push(m); });
            }

            lockedMeshes.forEach(applyLocked);

            dbg.innerHTML =
                `ًں§¬ Skin: <b>${skinMeshes.length}</b> &nbsp;ًں‘• Shirt: <b>${shirtMeshes.length}</b> &nbsp;ًں‘– Pants: <b>${pantsMeshes.length}</b> &nbsp;ًں”’ Locked: <b>${lockedMeshes.length}</b><br>` +
                `<span style="opacity:.5;font-size:9px">Model: ${GENDER === 'women' ? 'FEMALE' : 'MALE'}.glb</span>`;

            // Auto-select the detected skin tone
            const skinSwatches = document.getElementById('avSkinSwatches').querySelectorAll('.av-swatch');
            const targetSwatch = skinSwatches[INITIAL_SKIN_INDEX];
            if (targetSwatch) {
                skinSwatches.forEach(s => s.classList.remove('active'));
                targetSwatch.classList.add('active');
                applySkinColor(targetSwatch.dataset.hex);
                buildClothingSwatches(INITIAL_SKIN_KEY, REC_SHIRT_HEX, REC_PANTS_HEX);
            } else {
                buildClothingSwatches('intermediate', REC_SHIRT_HEX, REC_PANTS_HEX);
            }
        },
        undefined,
        err => { console.error(err); dbg.innerHTML = `<span style="color:#ff6b6b">â‌Œ ${err.message}</span>`; }
    );

    // ────────────────────────────────────────────────────────────────
    //  SKIN SWATCH CLICK
    // ────────────────────────────────────────────────────────────────
    document.getElementById('avSkinSwatches').querySelectorAll('.av-swatch').forEach(sw => {
        sw.addEventListener('click', () => {
            document.getElementById('avSkinSwatches').querySelectorAll('.av-swatch').forEach(s => s.classList.remove('active'));
            sw.classList.add('active');
            const skinIndex = parseInt(sw.dataset.skin);
            const skinKey = INDEX_TO_KEY[skinIndex] || 'intermediate';
            applySkinColor(sw.dataset.hex);
            buildClothingSwatches(skinKey, null, null);
        });
    });

    // ── Render loop ──
    (function animate() {
        requestAnimationFrame(animate);
        controls.update();
        renderer.render(scene, camera);
    })();

    // ── Resize ──
    new ResizeObserver(() => {
        const w = Math.max(container.clientWidth, 1);
        const h = Math.max(container.clientHeight, 1);
        camera.aspect = w / h;
        camera.updateProjectionMatrix();
        renderer.setSize(w, h);
    }).observe(container);
</script>
{% endblock %}