diff --git a/app.js b/app.js
index 051fe82..6d4fcc3 100644
--- a/app.js
+++ b/app.js
@@ -1,27 +1,450 @@
-// ... existing code ...
-
-// === WEBSOCKET CLIENT ===
+// === THE NEXUS — app.js ===
+import * as THREE from 'three';
+import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
+import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
+import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
+import { UnrealBloomPass } from 'three/addons/postprocessing/UnrealBloomPass.js';
 import { wsClient } from './ws-client.js';
 
-// Initialize WebSocket client
-wsClient.connect();
+// === COLOR PALETTE ===
+const NEXUS = {
+  colors: {
+    primary:    0x00ffff,
+    secondary:  0xff00ff,
+    accent:     0xffff00,
+    bg:         0x020408,
+    starWhite:  0xc0e8ff,
+    coreGlow:   0x00ffff,
+    nebula1:    0x1a0040,
+    nebula2:    0x001a40,
+    particle:   0x88ccff,
+  }
+};
 
-// Handle WebSocket events
-window.addEventListener('player-joined', (event) => {
-  console.log('Player joined:', event.detail);
-});
+// === QUALITY PRESETS ===
+const QUALITY_HIGH = 'high';
+const QUALITY_LOW  = 'low';
+let currentQuality = null;
 
-window.addEventListener('player-left', (event) => {
-  console.log('Player left:', event.detail);
-});
+// Scene globals
+let scene, camera, renderer, controls;
+let composer, bloomPass;
+let nexusCore, particles, particlePositions;
+const PARTICLE_COUNT_HIGH = 3000;
+const PARTICLE_COUNT_LOW  =  800;
 
-window.addEventListener('chat-message', (event) => {
-  console.log('Chat message:', event.detail);
-});
+// === PERFORMANCE AUTO-DETECTION ===
+// Measures actual frame time over N frames, returns average FPS.
+function measureFPS(frameCount) {
+  return new Promise((resolve) => {
+    const times = [];
+    let prev = performance.now();
 
-// Clean up on page unload
-window.addEventListener('beforeunload', () => {
-  wsClient.disconnect();
-});
+    function tick() {
+      const now = performance.now();
+      times.push(now - prev);
+      prev = now;
 
-// ... existing code ...
+      if (times.length < frameCount) {
+        requestAnimationFrame(tick);
+      } else {
+        const avgMs = times.reduce((a, b) => a + b, 0) / times.length;
+        resolve(1000 / avgMs);
+      }
+    }
+
+    requestAnimationFrame(tick);
+  });
+}
+
+async function detectPerformanceTier() {
+  setLoadingStatus('Measuring performance…');
+  setLoadingProgress(50);
+
+  const fps = await measureFPS(60);
+  console.log(`[Nexus] Performance: ${fps.toFixed(1)} FPS avg over 60 frames`);
+
+  const tier = fps >= 30 ? QUALITY_HIGH : QUALITY_LOW;
+  applyQualityPreset(tier, fps);
+  return tier;
+}
+
+// === QUALITY APPLICATION ===
+function applyQualityPreset(tier, fps) {
+  currentQuality = tier;
+
+  if (tier === QUALITY_LOW) {
+    // Disable bloom
+    if (composer && bloomPass) {
+      bloomPass.enabled = false;
+    }
+
+    // Reduce particle count
+    if (particles) {
+      rebuildParticles(PARTICLE_COUNT_LOW);
+    }
+
+    // Simplify core material
+    if (nexusCore) {
+      nexusCore.material.dispose();
+      nexusCore.material = new THREE.MeshLambertMaterial({
+        color: NEXUS.colors.primary,
+        wireframe: true,
+      });
+    }
+
+    console.log('[Nexus] Quality: LOW — bloom off, particles reduced, materials simplified');
+  } else {
+    // Ensure bloom is enabled (default)
+    if (composer && bloomPass) {
+      bloomPass.enabled = true;
+    }
+    console.log('[Nexus] Quality: HIGH — full rendering enabled');
+  }
+
+  updateQualityIndicator(tier, fps);
+}
+
+function updateQualityIndicator(tier, fps) {
+  const el = document.getElementById('quality-indicator');
+  const label = document.getElementById('quality-label');
+  if (!el || !label) return;
+
+  el.classList.remove('quality-high', 'quality-low', 'quality-detecting');
+  el.classList.add(`quality-${tier}`);
+  label.textContent = `${tier.toUpperCase()} · ${Math.round(fps)} FPS`;
+}
+
+// === SCENE SETUP ===
+function initScene() {
+  scene = new THREE.Scene();
+  scene.fog = new THREE.FogExp2(NEXUS.colors.bg, 0.018);
+  scene.background = new THREE.Color(NEXUS.colors.bg);
+
+  camera = new THREE.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 0.1, 600);
+  camera.position.set(0, 2, 12);
+
+  renderer = new THREE.WebGLRenderer({
+    canvas: document.getElementById('canvas'),
+    antialias: true,
+    powerPreference: 'high-performance',
+  });
+  renderer.setPixelRatio(Math.min(window.devicePixelRatio, 2));
+  renderer.setSize(window.innerWidth, window.innerHeight);
+  renderer.toneMapping = THREE.ACESFilmicToneMapping;
+  renderer.toneMappingExposure = 1.0;
+
+  controls = new OrbitControls(camera, renderer.domElement);
+  controls.enableDamping = true;
+  controls.dampingFactor = 0.06;
+  controls.minDistance = 3;
+  controls.maxDistance = 80;
+  controls.target.set(0, 0, 0);
+
+  // Post-processing
+  composer = new EffectComposer(renderer);
+  composer.addPass(new RenderPass(scene, camera));
+  bloomPass = new UnrealBloomPass(
+    new THREE.Vector2(window.innerWidth, window.innerHeight),
+    1.2,   // strength
+    0.5,   // radius
+    0.75   // threshold
+  );
+  composer.addPass(bloomPass);
+
+  window.addEventListener('resize', onResize);
+}
+
+function onResize() {
+  camera.aspect = window.innerWidth / window.innerHeight;
+  camera.updateProjectionMatrix();
+  renderer.setSize(window.innerWidth, window.innerHeight);
+  composer.setSize(window.innerWidth, window.innerHeight);
+}
+
+// === LIGHTING ===
+function buildLighting() {
+  scene.add(new THREE.AmbientLight(0x112233, 0.8));
+
+  const sun = new THREE.DirectionalLight(0xffffff, 1.2);
+  sun.position.set(10, 20, 10);
+  scene.add(sun);
+
+  const rimLight = new THREE.PointLight(NEXUS.colors.primary, 2, 30);
+  rimLight.position.set(-6, 4, -6);
+  scene.add(rimLight);
+
+  const fill = new THREE.PointLight(NEXUS.colors.secondary, 1, 20);
+  fill.position.set(6, -2, 6);
+  scene.add(fill);
+}
+
+// === STAR FIELD ===
+function buildStars() {
+  const count = 4000;
+  const geo = new THREE.BufferGeometry();
+  const pos = new Float32Array(count * 3);
+
+  for (let i = 0; i < count * 3; i++) {
+    pos[i] = (Math.random() - 0.5) * 500;
+  }
+  geo.setAttribute('position', new THREE.BufferAttribute(pos, 3));
+
+  const mat = new THREE.PointsMaterial({
+    color: NEXUS.colors.starWhite,
+    size: 0.35,
+    sizeAttenuation: true,
+    transparent: true,
+    opacity: 0.85,
+  });
+
+  scene.add(new THREE.Points(geo, mat));
+}
+
+// === NEXUS CORE ===
+function buildNexusCore() {
+  const geo = new THREE.IcosahedronGeometry(1.2, 1);
+  const mat = new THREE.MeshStandardMaterial({
+    color: NEXUS.colors.primary,
+    emissive: NEXUS.colors.primary,
+    emissiveIntensity: 0.4,
+    metalness: 0.8,
+    roughness: 0.15,
+  });
+  nexusCore = new THREE.Mesh(geo, mat);
+  nexusCore.position.set(0, 0.5, 0);
+  scene.add(nexusCore);
+
+  // Pedestal
+  const pedGeo = new THREE.CylinderGeometry(0.3, 0.5, 0.5, 8);
+  const pedMat = new THREE.MeshStandardMaterial({ color: 0x224466, metalness: 0.6, roughness: 0.4 });
+  const pedestal = new THREE.Mesh(pedGeo, pedMat);
+  pedestal.position.set(0, -0.85, 0);
+  scene.add(pedestal);
+
+  // Glow ring
+  const ringGeo = new THREE.TorusGeometry(1.8, 0.04, 8, 64);
+  const ringMat = new THREE.MeshBasicMaterial({ color: NEXUS.colors.primary });
+  const ring = new THREE.Mesh(ringGeo, ringMat);
+  ring.rotation.x = Math.PI / 2;
+  ring.position.y = 0.5;
+  scene.add(ring);
+}
+
+// === PARTICLE SYSTEM ===
+function buildParticles(count) {
+  const geo = new THREE.BufferGeometry();
+  particlePositions = new Float32Array(count * 3);
+
+  for (let i = 0; i < count; i++) {
+    const theta = Math.random() * Math.PI * 2;
+    const phi = Math.acos(2 * Math.random() - 1);
+    const r = 3 + Math.random() * 14;
+    particlePositions[i * 3]     = r * Math.sin(phi) * Math.cos(theta);
+    particlePositions[i * 3 + 1] = r * Math.sin(phi) * Math.sin(theta);
+    particlePositions[i * 3 + 2] = r * Math.cos(phi);
+  }
+
+  geo.setAttribute('position', new THREE.BufferAttribute(particlePositions, 3));
+
+  const mat = new THREE.PointsMaterial({
+    color: NEXUS.colors.particle,
+    size: 0.12,
+    sizeAttenuation: true,
+    transparent: true,
+    opacity: 0.7,
+  });
+
+  if (particles) {
+    scene.remove(particles);
+    particles.geometry.dispose();
+    particles.material.dispose();
+  }
+
+  particles = new THREE.Points(geo, mat);
+  scene.add(particles);
+}
+
+function rebuildParticles(count) {
+  buildParticles(count);
+}
+
+// === FLOOR GRID ===
+function buildFloor() {
+  const helper = new THREE.GridHelper(40, 20, 0x0a2030, 0x071520);
+  helper.position.y = -1.2;
+  scene.add(helper);
+
+  const floorGeo = new THREE.PlaneGeometry(40, 40);
+  const floorMat = new THREE.MeshStandardMaterial({
+    color: 0x030d18,
+    roughness: 0.9,
+    metalness: 0.1,
+    transparent: true,
+    opacity: 0.85,
+  });
+  const floor = new THREE.Mesh(floorGeo, floorMat);
+  floor.rotation.x = -Math.PI / 2;
+  floor.position.y = -1.2;
+  scene.add(floor);
+}
+
+// === ANIMATION LOOP ===
+let clock;
+
+function startLoop() {
+  clock = new THREE.Clock();
+
+  function animate() {
+    requestAnimationFrame(animate);
+    const t = clock.getElapsedTime();
+
+    // Rotate core
+    if (nexusCore) {
+      nexusCore.rotation.y = t * 0.4;
+      nexusCore.rotation.x = t * 0.15;
+    }
+
+    // Drift particles
+    if (particles) {
+      particles.rotation.y = t * 0.02;
+      particles.rotation.x = t * 0.005;
+    }
+
+    controls.update();
+    composer.render();
+  }
+
+  animate();
+}
+
+// === CHAT ===
+function initChat() {
+  const toggle = document.getElementById('chat-toggle');
+  const panel  = document.getElementById('chat-panel');
+  const close  = document.getElementById('chat-close');
+  const input  = document.getElementById('chat-input');
+  const send   = document.getElementById('chat-send');
+  const msgs   = document.getElementById('chat-messages');
+
+  function openPanel()  { panel.classList.add('open'); toggle.style.display = 'none'; }
+  function closePanel() { panel.classList.remove('open'); toggle.style.display = ''; }
+
+  toggle.addEventListener('click', openPanel);
+  close.addEventListener('click', closePanel);
+
+  function sendMsg() {
+    const text = input.value.trim();
+    if (!text) return;
+    appendMsg('You', text, '#aaddff');
+    wsClient.send({ type: 'chat-message', text });
+    input.value = '';
+  }
+
+  send.addEventListener('click', sendMsg);
+  input.addEventListener('keydown', (e) => { if (e.key === 'Enter') sendMsg(); });
+
+  function appendMsg(from, text, color) {
+    const p = document.createElement('p');
+    p.innerHTML = `<span style="color:${color}">[${from}]</span> ${text}`;
+    msgs.appendChild(p);
+    msgs.scrollTop = msgs.scrollHeight;
+  }
+
+  window.addEventListener('chat-message', (e) => {
+    appendMsg('Timmy', e.detail.text || e.detail.message || '…', '#00ffcc');
+  });
+}
+
+// === AUDIO ===
+function initAudio() {
+  const btn   = document.getElementById('audio-toggle');
+  const audio = document.getElementById('ambient-sound');
+  let muted = true;
+
+  btn.addEventListener('click', () => {
+    muted = !muted;
+    if (muted) {
+      audio.pause();
+      btn.textContent = '🔇';
+      btn.classList.add('muted');
+    } else {
+      audio.play().catch(() => {});
+      btn.textContent = '🔊';
+      btn.classList.remove('muted');
+    }
+  });
+}
+
+// === WEBSOCKET ===
+function initWebSocket() {
+  wsClient.connect();
+
+  window.addEventListener('player-joined', (e) => {
+    console.log('[Nexus] Player joined:', e.detail);
+  });
+  window.addEventListener('player-left', (e) => {
+    console.log('[Nexus] Player left:', e.detail);
+  });
+
+  window.addEventListener('beforeunload', () => wsClient.disconnect());
+}
+
+// === LOADING HELPERS ===
+function setLoadingProgress(pct) {
+  const bar = document.getElementById('loading-progress');
+  if (bar) bar.style.width = `${pct}%`;
+}
+
+function setLoadingStatus(msg) {
+  const el = document.getElementById('loading-status');
+  if (el) el.textContent = msg;
+}
+
+function hideLoading() {
+  const el = document.getElementById('loading-screen');
+  if (el) {
+    el.classList.add('hidden');
+    setTimeout(() => el.remove(), 900);
+  }
+}
+
+// === BOOT ===
+async function boot() {
+  // Set quality indicator to detecting state
+  const qEl = document.getElementById('quality-indicator');
+  if (qEl) qEl.classList.add('quality-detecting');
+
+  setLoadingProgress(10);
+  setLoadingStatus('Building scene…');
+
+  initScene();
+  buildLighting();
+  buildStars();
+  buildNexusCore();
+  buildParticles(PARTICLE_COUNT_HIGH);
+  buildFloor();
+
+  setLoadingProgress(30);
+  setLoadingStatus('Starting render loop…');
+
+  // Start rendering so the GPU warms up before measurement
+  startLoop();
+
+  setLoadingProgress(40);
+
+  // Measure real FPS over 60 frames (blocks ~1 second at 60 FPS)
+  await detectPerformanceTier();
+
+  setLoadingProgress(90);
+  setLoadingStatus('Ready.');
+
+  initChat();
+  initAudio();
+  initWebSocket();
+
+  setLoadingProgress(100);
+  setTimeout(hideLoading, 300);
+}
+
+boot();
diff --git a/index.html b/index.html
index 34af931..944fb79 100644
--- a/index.html
+++ b/index.html
@@ -14,18 +14,64 @@
   <meta name="twitter:description" content="A sovereign 3D world">
   <meta name="twitter:image" content="https://example.com/og-image.png">
   <link rel="manifest" href="/manifest.json">
+  <link rel="stylesheet" href="style.css">
+  <script type="importmap">
+  {
+    "imports": {
+      "three": "https://unpkg.com/three@0.183.0/build/three.module.js",
+      "three/addons/": "https://unpkg.com/three@0.183.0/examples/jsm/"
+    }
+  }
+  </script>
 </head>
 <body>
-  <!-- ... existing content ... -->
+  <canvas id="canvas"></canvas>
 
-  <!-- Top Right: Audio Toggle -->
-  <div id="audio-control" class="hud-controls" style="position: absolute; top: 8px; right: 8px;">
-    <button id="audio-toggle" class="chat-toggle-btn" aria-label="Toggle ambient sound" style="background-color: var(--color-primary); color: var(--color-bg); padding: 4px 8px; border-radius: 4px; font-size: 12px; cursor: pointer;">
-      🔊
-    </button>
-    <audio id="ambient-sound" src="ambient.mp3" loop></audio>
+  <!-- Loading Screen -->
+  <div id="loading-screen">
+    <div class="loading-inner">
+      <div class="loading-title">◈ THE NEXUS</div>
+      <div class="loading-bar"><div id="loading-progress"></div></div>
+      <div id="loading-status">Initializing...</div>
+    </div>
   </div>
 
-  <!-- ... existing content ... -->
+  <!-- HUD -->
+  <div id="hud">
+    <!-- Top-left: Nexus label -->
+    <div id="hud-title">◈ NEXUS</div>
+
+    <!-- Top-right: Quality indicator + audio toggle -->
+    <div id="hud-top-right">
+      <div id="quality-indicator" class="hud-badge" title="Rendering quality tier">
+        <span id="quality-label">DETECTING...</span>
+      </div>
+      <div id="audio-control">
+        <button id="audio-toggle" class="hud-btn" aria-label="Toggle ambient sound">🔊</button>
+        <audio id="ambient-sound" src="ambient.mp3" loop></audio>
+      </div>
+    </div>
+
+    <!-- Bottom-left: navigation hint -->
+    <div id="hud-hint">WASD + drag to explore</div>
+  </div>
+
+  <!-- Chat Panel (Timmy Terminal) -->
+  <div id="chat-panel">
+    <div id="chat-header">
+      <span>TIMMY TERMINAL</span>
+      <button id="chat-close" class="hud-btn" aria-label="Close chat">✕</button>
+    </div>
+    <div id="chat-messages"></div>
+    <div id="chat-input-row">
+      <input id="chat-input" type="text" placeholder="Message Timmy..." autocomplete="off">
+      <button id="chat-send" class="hud-btn">SEND</button>
+    </div>
+  </div>
+
+  <!-- Chat toggle -->
+  <button id="chat-toggle" class="hud-btn" aria-label="Toggle chat">💬</button>
+
+  <script type="module" src="app.js"></script>
 </body>
 </html>
diff --git a/style.css b/style.css
index a2aab15..bc9e9b5 100644
--- a/style.css
+++ b/style.css
@@ -1,18 +1,242 @@
+/* === NEXUS DESIGN SYSTEM === */
+:root {
+  --color-bg: #020408;
+  --color-primary: #00ffff;
+  --color-secondary: #ff00ff;
+  --color-accent: #ffff00;
+  --color-text: #c0e8ff;
+  --color-text-muted: #4a7a9b;
+  --color-panel: rgba(0, 20, 40, 0.85);
+  --color-border: rgba(0, 255, 255, 0.25);
+  --font-body: 'Courier New', Courier, monospace;
+}
+
+* { box-sizing: border-box; margin: 0; padding: 0; }
+
+body {
+  background: var(--color-bg);
+  color: var(--color-text);
+  font-family: var(--font-body);
+  overflow: hidden;
+  width: 100vw;
+  height: 100vh;
+}
+
+#canvas {
+  display: block;
+  width: 100vw;
+  height: 100vh;
+  position: fixed;
+  top: 0; left: 0;
+}
+
+/* === LOADING SCREEN === */
+#loading-screen {
+  position: fixed;
+  inset: 0;
+  background: var(--color-bg);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  z-index: 100;
+  transition: opacity 0.8s ease;
+}
+#loading-screen.hidden { opacity: 0; pointer-events: none; }
+
+.loading-inner { text-align: center; }
+.loading-title {
+  font-size: 2.5rem;
+  color: var(--color-primary);
+  letter-spacing: 0.3em;
+  margin-bottom: 1.5rem;
+  text-shadow: 0 0 20px var(--color-primary);
+}
+.loading-bar {
+  width: 240px;
+  height: 4px;
+  background: var(--color-border);
+  border-radius: 2px;
+  margin: 0 auto 0.75rem;
+  overflow: hidden;
+}
+#loading-progress {
+  height: 100%;
+  width: 0;
+  background: var(--color-primary);
+  border-radius: 2px;
+  transition: width 0.3s ease;
+  box-shadow: 0 0 8px var(--color-primary);
+}
+#loading-status {
+  font-size: 0.7rem;
+  color: var(--color-text-muted);
+  letter-spacing: 0.15em;
+}
+
+/* === HUD === */
+#hud {
+  position: fixed;
+  inset: 0;
+  pointer-events: none;
+  z-index: 10;
+}
+
+#hud-title {
+  position: absolute;
+  top: 12px; left: 16px;
+  font-size: 1rem;
+  letter-spacing: 0.3em;
+  color: var(--color-primary);
+  text-shadow: 0 0 12px var(--color-primary);
+}
+
+#hud-top-right {
+  position: absolute;
+  top: 8px; right: 8px;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  pointer-events: auto;
+}
+
+/* Quality Indicator */
+.hud-badge {
+  background: var(--color-panel);
+  border: 1px solid var(--color-border);
+  border-radius: 4px;
+  padding: 4px 10px;
+  font-size: 0.65rem;
+  letter-spacing: 0.12em;
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  backdrop-filter: blur(4px);
+}
+.hud-badge::before {
+  content: '';
+  display: inline-block;
+  width: 6px; height: 6px;
+  border-radius: 50%;
+  background: var(--quality-dot, var(--color-text-muted));
+  box-shadow: 0 0 4px var(--quality-dot, transparent);
+}
+#quality-indicator.quality-high {
+  --quality-dot: #00ff88;
+  border-color: rgba(0, 255, 136, 0.4);
+  color: #00ff88;
+}
+#quality-indicator.quality-low {
+  --quality-dot: #ff8800;
+  border-color: rgba(255, 136, 0, 0.4);
+  color: #ff8800;
+}
+#quality-indicator.quality-detecting {
+  --quality-dot: var(--color-text-muted);
+  color: var(--color-text-muted);
+}
+
+#hud-hint {
+  position: absolute;
+  bottom: 16px; left: 50%;
+  transform: translateX(-50%);
+  font-size: 0.65rem;
+  color: var(--color-text-muted);
+  letter-spacing: 0.1em;
+  pointer-events: none;
+}
+
+/* === BUTTONS === */
+.hud-btn {
+  background: var(--color-panel);
+  border: 1px solid var(--color-border);
+  color: var(--color-text);
+  font-family: var(--font-body);
+  font-size: 0.75rem;
+  padding: 4px 8px;
+  border-radius: 4px;
+  cursor: pointer;
+  backdrop-filter: blur(4px);
+  transition: border-color 0.2s, color 0.2s;
+  pointer-events: auto;
+}
+.hud-btn:hover {
+  border-color: var(--color-primary);
+  color: var(--color-primary);
+}
+
+/* === CHAT PANEL === */
+#chat-panel {
+  position: fixed;
+  bottom: 16px; right: 16px;
+  width: 320px;
+  max-height: 380px;
+  background: var(--color-panel);
+  border: 1px solid var(--color-border);
+  border-radius: 8px;
+  display: flex;
+  flex-direction: column;
+  backdrop-filter: blur(8px);
+  z-index: 20;
+  transform: translateY(calc(100% + 16px));
+  transition: transform 0.3s ease;
+}
+#chat-panel.open { transform: translateY(0); }
+
+#chat-header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 8px 12px;
+  border-bottom: 1px solid var(--color-border);
+  font-size: 0.7rem;
+  letter-spacing: 0.15em;
+  color: var(--color-primary);
+}
+#chat-messages {
+  flex: 1;
+  overflow-y: auto;
+  padding: 8px 12px;
+  font-size: 0.75rem;
+  line-height: 1.5;
+  min-height: 180px;
+}
+#chat-input-row {
+  display: flex;
+  gap: 6px;
+  padding: 8px 12px;
+  border-top: 1px solid var(--color-border);
+}
+#chat-input {
+  flex: 1;
+  background: rgba(0, 0, 0, 0.4);
+  border: 1px solid var(--color-border);
+  color: var(--color-text);
+  font-family: var(--font-body);
+  font-size: 0.75rem;
+  padding: 4px 8px;
+  border-radius: 4px;
+  outline: none;
+}
+#chat-input:focus { border-color: var(--color-primary); }
+
+#chat-toggle {
+  position: fixed;
+  bottom: 16px; right: 16px;
+  z-index: 15;
+  font-size: 1.1rem;
+  padding: 8px 12px;
+}
+#chat-panel.open ~ #chat-toggle { opacity: 0; pointer-events: none; }
+
 /* === AUDIO TOGGLE === */
 #audio-toggle {
   font-size: 14px;
-  background-color: var(--color-primary-primary);
-  color: var(--color-bg);
+  background-color: var(--color-panel);
+  color: var(--color-text);
   padding: 4px 8px;
   border-radius: 4px;
   font-family: var(--font-body);
   transition: background-color 0.3s ease;
 }
-
-#audio-toggle:hover {
-  background-color: var(--color-secondary);
-}
-
-#audio-toggle.muted {
-  background-color: var(--color-text-muted);
-}
+#audio-toggle:hover { background-color: rgba(0, 255, 255, 0.1); }
+#audio-toggle.muted { color: var(--color-text-muted); }