diff --git a/src/App.svelte b/src/App.svelte
index e744691..ac35461 100644
--- a/src/App.svelte
+++ b/src/App.svelte
@@ -1,54 +1,58 @@
 <script lang="ts">
   let serverAddress = 'http://127.0.0.1:8787';
-  let connectionState = 'Not connected';
+  let connectionState = 'OFFLINE';
   let serverVersion = '—';
+  let activeView = 'Live dashboard';
 
   async function checkServer() {
-    connectionState = 'Connecting…';
+    connectionState = 'CONNECTING';
     try {
       const response = await fetch(`${serverAddress}/api/v1/server/info`);
       if (!response.ok) throw new Error(`HTTP ${response.status}`);
       const info: { server_version: string } = await response.json();
       serverVersion = info.server_version;
-      connectionState = 'Connected';
+      connectionState = 'CONNECTED';
     } catch {
-      connectionState = 'Server unavailable';
+      connectionState = 'SERVER UNAVAILABLE';
     }
   }
 </script>
 
-<svelte:head>
-  <meta name="theme-color" content="#2575e6" />
-</svelte:head>
+<svelte:head><title>Trixie</title></svelte:head>
 
-<main class="shell">
-  <header class="topbar">
-    <div>
-      <p class="eyebrow">TRIXIE</p>
-      <h1>Twitch control center</h1>
-    </div>
-    <span class:connected={connectionState === 'Connected'} class="status">{connectionState}</span>
+<div class="app-shell">
+  <header class="app-bar">
+    <div class="brand"><span class="brand-mark">T</span><span>TRIXIE</span></div>
+    <nav class="top-nav" aria-label="Primary navigation">
+      {#each ['Live dashboard', 'Chat', 'Bot', 'Overlays'] as item}
+        <button class:active={activeView === item} class="nav-item" onclick={() => (activeView = item)}>{item}</button>
+      {/each}
+    </nav>
+    <div class="app-actions"><span class:online={connectionState === 'CONNECTED'} class="connection-state">{connectionState}</span><button class="icon-button" aria-label="Settings">⚙</button></div>
   </header>
 
-  <section class="hero panel">
-    <div>
-      <p class="eyebrow">SERVER CONNECTION</p>
-      <h2>Ready to build the dashboard</h2>
-      <p class="muted">The client and server now share a versioned readiness contract.</p>
-    </div>
-    <div class="connection-form">
-      <label for="server-address">Server address</label>
-      <div class="input-row">
-        <input id="server-address" bind:value={serverAddress} spellcheck="false" />
-        <button on:click={checkServer}>Test connection</button>
+  <main class="workspace">
+    <aside class="side-panel">
+      <div class="panel-header"><span>TRIXIE</span><span class="panel-kicker">CONTROL</span></div>
+      <div class="server-card">
+        <div class="micro">SERVER CONNECTION</div>
+        <div class="server-status"><span class:good={connectionState === 'CONNECTED'} class="status-dot"></span>{connectionState}</div>
+        <label for="server-address" class="micro">ADDRESS</label>
+        <input id="server-address" class="control" bind:value={serverAddress} spellcheck="false" />
+        <button class="primary control-button" onclick={checkServer}>TEST CONNECTION</button>
       </div>
-      <small>Server version: {serverVersion}</small>
-    </div>
-  </section>
+      <div class="side-section"><div class="micro">CHANNEL</div><div class="empty-row">No Twitch account connected</div></div>
+      <div class="side-section side-footer"><div class="micro">SERVER VERSION</div><div class="mono">{serverVersion}</div></div>
+    </aside>
 
-  <section class="dashboard-grid">
-    <article class="panel card"><span class="icon">◈</span><h3>Live dashboard</h3><p>Stream preview, activity, chat, and controls will live here.</p></article>
-    <article class="panel card"><span class="icon">⌁</span><h3>Bot and plugins</h3><p>Modular commands and safe WASM extensions are planned next.</p></article>
-    <article class="panel card"><span class="icon">◎</span><h3>Overlays</h3><p>Browser-source alerts will be editable and previewable.</p></article>
-  </section>
-</main>
+    <section class="content-area">
+      <div class="content-heading"><div><div class="micro">LIVE DASHBOARD / {activeView.toUpperCase()}</div><h1>{activeView}</h1></div><button class="secondary">⋮</button></div>
+      <div class="dashboard-grid">
+        <section class="panel preview-panel"><div class="panel-header"><span>STREAM PREVIEW</span><span class="panel-menu">⋮</span></div><div class="preview-stage"><div class="offline-mark">STREAM OFFLINE</div><div class="offline-subtitle">CONNECT TWITCH TO BEGIN</div></div><div class="panel-footer"><span class="micro">VIDEO PLAYER</span><span class="badge">OFFLINE</span></div></section>
+        <section class="panel activity-panel"><div class="panel-header"><span>ACTIVITY FEED</span><span class="panel-menu">⋮</span></div><div class="panel-tabs"><button class="tab active">ALL ACTIVITY</button><button class="tab">MODERATION</button></div><div class="empty-state"><div class="empty-glyph">◌</div><strong>Nothing here yet</strong><span>Follows, subscriptions, raids, and server events will appear here.</span></div></section>
+        <section class="panel chat-panel"><div class="panel-header"><span>MY CHAT</span><span class="panel-menu">⋮</span></div><div class="chat-empty"><div class="empty-glyph">⌁</div><strong>Chat is waiting</strong><span>Connect a streamer or bot account to begin.</span></div><div class="chat-composer"><input class="control" placeholder="Send a message" disabled /><button class="primary" disabled>SEND</button></div></section>
+        <section class="panel quick-panel"><div class="panel-header"><span>QUICK ACTIONS</span><span class="panel-menu">⋮</span></div><div class="quick-grid"><button class="quick-action accent">EDIT STREAM INFO</button><button class="quick-action">MODERATION</button><button class="quick-action">BOT COMMANDS</button><button class="quick-action">OVERLAYS</button></div></section>
+      </div>
+    </section>
+  </main>
+</div>
diff --git a/src/main.ts b/src/main.ts
index efb8d4c..919b913 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,7 +1,8 @@
 import './styles.css';
 import App from './App.svelte';
+import { mount } from 'svelte';
 
-const app = new App({
+const app = mount(App, {
   target: document.getElementById('app')!,
 });
 
diff --git a/src/styles.css b/src/styles.css
index 32ffebd..bb77222 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -1,154 +1,412 @@
+@font-face {
+  font-family: 'Rajdhani';
+  src: url('/fonts/Rajdhani-Regular.ttf') format('truetype');
+  font-weight: 400;
+}
+@font-face {
+  font-family: 'Rajdhani';
+  src: url('/fonts/Rajdhani-SemiBold.ttf') format('truetype');
+  font-weight: 600;
+}
+@font-face {
+  font-family: 'Rajdhani';
+  src: url('/fonts/Rajdhani-Bold.ttf') format('truetype');
+  font-weight: 700;
+}
+@font-face {
+  font-family: 'Inter';
+  src: url('/fonts/Inter-Variable.ttf') format('truetype');
+}
+@font-face {
+  font-family: 'JetBrains Mono';
+  src: url('/fonts/JetBrainsMono-Variable.ttf') format('truetype');
+}
 :root {
-  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
-  color: #f3f5fb;
-  background: #10131a;
-  font-synthesis: none;
+  --ed-accent: #00b3ff;
+  --ed-accent2: #ff7f00;
+  --ed-bg: #06080c;
+  --ed-panel: #0d1117;
+  --ed-edge: #1d2630;
+  --ed-fg: #dde6ec;
+  --ed-dim: #7d8b96;
+  --ed-success: #35d073;
+  --ed-warn: #ffb400;
+  --ed-danger: #ff5436;
+  --ed-info: #00b3ff;
+  --ed-love: #ff5ca8;
+  --font-display: 'Rajdhani', 'Inter', sans-serif;
+  --font-data: 'JetBrains Mono', monospace;
+  --font-body: 'Inter', sans-serif;
+  --panel-radius: 2px;
+  --ui-line: color-mix(in srgb, var(--ed-accent) 28%, var(--ed-edge));
+  --ui-line-soft: color-mix(in srgb, var(--ed-accent) 16%, var(--ed-edge));
+  --ui-line-focus: color-mix(in srgb, var(--ed-accent) 62%, var(--ed-edge));
+  --ui-surface: color-mix(in srgb, var(--ed-accent) 8%, var(--ed-bg));
+  --ui-surface-hi: color-mix(in srgb, var(--ed-accent) 14%, var(--ed-bg));
+  --ui-divider: color-mix(in srgb, var(--ed-fg) 7%, transparent);
 }
-
 * {
   box-sizing: border-box;
 }
+html,
 body {
   margin: 0;
-  min-width: 320px;
-  min-height: 100vh;
-  background: radial-gradient(circle at 85% 0%, #17325e 0, #10131a 42rem);
+  min-height: 100%;
+  background: var(--ed-bg);
+  color: var(--ed-fg);
+  font-family: var(--font-body);
+  font-size: 13px;
 }
 button,
 input {
   font: inherit;
+  color: inherit;
 }
 button {
   border: 0;
-  border-radius: 8px;
-  padding: 0.7rem 1rem;
-  color: white;
-  background: #2575e6;
   cursor: pointer;
+  background: none;
 }
-button:hover {
-  background: #4189ed;
+.app-shell {
+  min-height: 100vh;
+  background: linear-gradient(
+    135deg,
+    var(--ed-bg),
+    color-mix(in srgb, var(--ed-bg) 90%, var(--ed-accent))
+  );
 }
-.shell {
-  width: min(1180px, calc(100% - 3rem));
-  margin: 0 auto;
-  padding: 2rem 0;
+.app-bar {
+  height: 54px;
+  display: flex;
+  align-items: center;
+  gap: 24px;
+  padding: 0 18px;
+  border-bottom: 1px solid var(--ed-edge);
+  background: var(--ed-panel);
 }
-.topbar,
-.input-row {
+.brand {
+  display: flex;
+  align-items: center;
+  gap: 9px;
+  min-width: 170px;
+  font: 600 18px var(--font-display);
+  letter-spacing: 0.12em;
+}
+.brand-mark {
+  display: grid;
+  place-items: center;
+  width: 26px;
+  height: 26px;
+  color: var(--ed-bg);
+  background: var(--ed-accent);
+  font-weight: 700;
+}
+.top-nav {
+  display: flex;
+  align-self: stretch;
+  gap: 4px;
+}
+.nav-item {
+  position: relative;
+  padding: 0 14px;
+  color: var(--ed-dim);
+  font: 600 13px var(--font-display);
+}
+.nav-item:hover,
+.nav-item.active {
+  color: var(--ed-fg);
+  background: var(--ui-surface);
+}
+.nav-item.active::after {
+  position: absolute;
+  right: 10px;
+  bottom: 0;
+  left: 10px;
+  height: 2px;
+  background: var(--ed-accent);
+  content: '';
+}
+.app-actions {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin-left: auto;
+}
+.connection-state,
+.badge {
+  padding: 3px 7px;
+  border: 1px solid var(--ed-warn);
+  color: var(--ed-warn);
+  font: 10px var(--font-data);
+  letter-spacing: 0.04em;
+}
+.connection-state.online {
+  border-color: var(--ed-success);
+  color: var(--ed-success);
+}
+.icon-button,
+.secondary {
+  color: var(--ed-dim);
+  font-size: 18px;
+}
+.workspace {
+  display: grid;
+  grid-template-columns: 220px 1fr;
+  min-height: calc(100vh - 54px);
+}
+.side-panel {
+  border-right: 1px solid var(--ed-edge);
+  background: color-mix(in srgb, var(--ed-panel) 80%, var(--ed-bg));
+}
+.panel-header {
   display: flex;
   align-items: center;
   justify-content: space-between;
-  gap: 1rem;
+  min-height: 34px;
+  padding: 0 10px;
+  border-bottom: 1px solid var(--ed-edge);
+  color: var(--ed-fg);
+  font: 600 13px var(--font-display);
+  letter-spacing: 0.04em;
 }
-.topbar {
-  margin-bottom: 2rem;
+.panel-kicker,
+.micro {
+  color: var(--ed-dim);
+  font: 10px var(--font-data);
+  letter-spacing: 0.08em;
 }
-.eyebrow {
-  margin: 0 0 0.35rem;
-  color: #78aef5;
-  font-size: 0.72rem;
-  font-weight: 800;
-  letter-spacing: 0.14em;
+.server-card,
+.side-section {
+  padding: 16px 12px;
+  border-bottom: 1px solid var(--ed-edge);
 }
-h1,
-h2,
-h3,
-p {
-  margin-top: 0;
+.server-status {
+  display: flex;
+  align-items: center;
+  gap: 7px;
+  margin: 13px 0 18px;
+  font: 11px var(--font-data);
 }
-h1 {
-  margin-bottom: 0;
-  font-size: clamp(1.6rem, 3vw, 2.4rem);
+.status-dot {
+  width: 7px;
+  height: 7px;
+  border-radius: 50%;
+  background: var(--ed-danger);
 }
-h2 {
-  font-size: clamp(1.4rem, 3vw, 2.1rem);
-}
-.status {
-  border: 1px solid #3a4354;
-  border-radius: 999px;
-  padding: 0.45rem 0.8rem;
-  color: #a9b1c2;
-  font-size: 0.85rem;
-}
-.status.connected {
-  border-color: #2f9d70;
-  color: #77e0ae;
-}
-.panel {
-  border: 1px solid #2b3342;
-  border-radius: 14px;
-  background: rgba(24, 29, 39, 0.88);
-  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.18);
-}
-.hero {
-  display: grid;
-  grid-template-columns: 1.2fr 1fr;
-  gap: 2rem;
-  padding: 2rem;
-}
-.muted,
-small {
-  color: #9aa5b8;
-}
-.connection-form {
-  align-self: center;
+.status-dot.good {
+  background: var(--ed-success);
 }
 label {
   display: block;
-  margin-bottom: 0.5rem;
-  color: #c9d2e3;
-  font-size: 0.85rem;
+  margin-bottom: 5px;
 }
-input {
+.control {
+  width: 100%;
+  padding: 7px 8px;
+  border: 1px solid var(--ui-line);
+  border-radius: 2px;
+  outline: none;
+  background: var(--ed-bg);
+  color: var(--ed-fg);
+  font: 11px var(--font-data);
+}
+.control:focus {
+  border-color: var(--ui-line-focus);
+}
+.control-button {
+  width: 100%;
+  margin-top: 8px;
+}
+.primary {
+  padding: 7px 10px;
+  border: 1px solid var(--ed-accent);
+  background: color-mix(in srgb, var(--ed-accent) 20%, var(--ed-bg));
+  color: var(--ed-fg);
+  font: 600 11px var(--font-data);
+}
+.primary:hover {
+  background: color-mix(in srgb, var(--ed-accent) 34%, var(--ed-bg));
+}
+.empty-row,
+.mono {
+  margin-top: 8px;
+  color: var(--ed-dim);
+  font-size: 11px;
+}
+.mono {
+  font-family: var(--font-data);
+}
+.side-footer {
+  margin-top: auto;
+  border-bottom: 0;
+}
+.content-area {
   min-width: 0;
-  flex: 1;
-  border: 1px solid #3a4354;
-  border-radius: 8px;
-  padding: 0.7rem 0.8rem;
-  color: #f3f5fb;
-  background: #10131a;
+  padding: 16px;
 }
-.input-row {
-  justify-content: stretch;
+.content-heading {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: 12px;
 }
-small {
-  display: block;
-  margin-top: 0.55rem;
+.content-heading h1 {
+  margin: 4px 0 0;
+  font: 600 24px var(--font-display);
 }
 .dashboard-grid {
   display: grid;
-  grid-template-columns: repeat(3, 1fr);
-  gap: 1rem;
-  margin-top: 1rem;
+  grid-template-columns: 1.25fr 1fr 1fr;
+  grid-template-rows: minmax(280px, 1fr) 180px;
+  gap: 10px;
+  min-height: calc(100vh - 110px);
 }
-.card {
-  min-height: 180px;
-  padding: 1.4rem;
+.panel {
+  min-width: 0;
+  border: 1px solid var(--ed-edge);
+  border-radius: var(--panel-radius);
+  background: var(--ed-panel);
 }
-.card p {
-  color: #9aa5b8;
+.preview-panel {
+  grid-column: span 2;
+}
+.chat-panel {
+  grid-row: span 2;
+}
+.preview-stage {
+  display: grid;
+  place-content: center;
+  min-height: 220px;
+  border-bottom: 1px solid var(--ed-edge);
+  background: radial-gradient(
+    circle,
+    color-mix(in srgb, var(--ed-accent) 10%, var(--ed-panel)),
+    var(--ed-bg) 70%
+  );
+  text-align: center;
+}
+.offline-mark {
+  color: var(--ed-fg);
+  font: 700 24px var(--font-display);
+  letter-spacing: 0.18em;
+}
+.offline-subtitle {
+  margin-top: 5px;
+  color: var(--ed-dim);
+  font: 10px var(--font-data);
+  letter-spacing: 0.1em;
+}
+.panel-footer {
+  display: flex;
+  justify-content: space-between;
+  padding: 9px 10px;
+}
+.panel-tabs {
+  display: flex;
+  gap: 14px;
+  padding: 9px 10px;
+  border-bottom: 1px solid var(--ed-edge);
+}
+.tab {
+  padding: 0 0 5px;
+  color: var(--ed-dim);
+  font: 10px var(--font-data);
+}
+.tab.active {
+  border-bottom: 2px solid var(--ed-accent);
+  color: var(--ed-accent);
+}
+.empty-state,
+.chat-empty {
+  display: grid;
+  place-items: center;
+  gap: 6px;
+  height: calc(100% - 75px);
+  padding: 24px;
+  color: var(--ed-dim);
+  text-align: center;
+}
+.empty-state strong,
+.chat-empty strong {
+  color: var(--ed-fg);
+  font: 600 16px var(--font-display);
+}
+.empty-state span,
+.chat-empty span {
+  max-width: 220px;
   line-height: 1.5;
 }
-.icon {
-  display: inline-block;
-  margin-bottom: 1rem;
-  color: #5d9bf0;
-  font-size: 1.8rem;
+.empty-glyph {
+  color: var(--ed-accent);
+  font-size: 28px;
 }
-@media (max-width: 760px) {
-  .shell {
-    width: min(100% - 1.5rem, 600px);
-    padding-top: 1rem;
+.chat-composer {
+  display: flex;
+  gap: 5px;
+  padding: 8px;
+  border-top: 1px solid var(--ed-edge);
+}
+.chat-composer .control {
+  min-width: 0;
+}
+.chat-composer .primary {
+  opacity: 0.5;
+}
+.quick-grid {
+  display: grid;
+  grid-template-columns: repeat(2, 1fr);
+  gap: 6px;
+  padding: 10px;
+}
+.quick-action {
+  min-height: 52px;
+  border: 1px solid var(--ui-line-soft);
+  background: var(--ui-surface);
+  color: var(--ed-dim);
+  font: 10px var(--font-data);
+}
+.quick-action:hover,
+.quick-action.accent {
+  border-color: var(--ui-line-focus);
+  color: var(--ed-fg);
+  background: var(--ui-surface-hi);
+}
+@media (max-width: 900px) {
+  .workspace {
+    grid-template-columns: 170px 1fr;
   }
-  .hero,
   .dashboard-grid {
-    grid-template-columns: 1fr;
+    grid-template-columns: 1fr 1fr;
+    grid-template-rows: auto auto auto;
   }
-  .hero {
-    padding: 1.25rem;
+  .preview-panel {
+    grid-column: span 2;
   }
-  .topbar {
-    align-items: flex-start;
+  .chat-panel {
+    grid-row: span 1;
+    grid-column: span 2;
+  }
+}
+@media (max-width: 640px) {
+  .top-nav {
+    display: none;
+  }
+  .workspace {
+    display: block;
+  }
+  .side-panel {
+    display: none;
+  }
+  .content-area {
+    padding: 10px;
+  }
+  .dashboard-grid {
+    display: block;
+  }
+  .panel {
+    margin-bottom: 10px;
+  }
+  .chat-panel {
+    min-height: 280px;
   }
 }
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diff --git a/static/fonts/Rajdhani-Bold.ttf b/static/fonts/Rajdhani-Bold.ttf
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diff --git a/static/fonts/Rajdhani-Regular.ttf b/static/fonts/Rajdhani-Regular.ttf
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diff --git a/static/fonts/Rajdhani-SemiBold.ttf b/static/fonts/Rajdhani-SemiBold.ttf
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