diff --git a/.gitignore b/.gitignore
index 06db909..ff0a273 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,4 @@ vendor/
 # Templ generated
 *_templ.go
 .claude/settings.json
+.gstack/
diff --git a/internal/api/render.go b/internal/api/render.go
index fc41971..d07b7f5 100644
--- a/internal/api/render.go
+++ b/internal/api/render.go
@@ -33,14 +33,22 @@ func dashboardPage(hosts []model.Host) string {
 
 func hostTile(h model.Host) string {
 	stateClass := stateColor(h.State)
+	led := ledClass(h.State)
 	return fmt.Sprintf(`
 		<a href="/hosts/%d" class="tile %s" id="tile-%d">
-			<div class="tile-name">%s</div>
-			<div class="tile-type">%s</div>
-			<div class="tile-state">%s</div>
-			<div class="tile-mac">%s</div>
+			<div class="tile-header">
+				<span class="led led-lg %s"></span>
+				<span class="tile-name">%s</span>
+			</div>
+			<div class="tile-meta">
+				<span class="tile-type">%s</span>
+			</div>
+			<div class="tile-footer">
+				<span class="tile-mac">%s</span>
+				<span class="tile-state-label">%s</span>
+			</div>
 		</a>
-	`, h.ID, stateClass, h.ID, html.EscapeString(h.Hostname), html.EscapeString(h.ServerType), h.State, h.MAC)
+	`, h.ID, stateClass, h.ID, led, html.EscapeString(h.Hostname), html.EscapeString(h.ServerType), h.MAC, h.State)
 }
 
 func hostFormPage(types []string, errMsg string, prefill *model.Host) string {
@@ -77,11 +85,12 @@ func hostFormPage(types []string, errMsg string, prefill *model.Host) string {
 
 func hostDetailPage(h *model.Host, ops []model.Operation) string {
 	stateClass := stateColor(h.State)
+	led := ledClass(h.State)
 	canRebuild := h.State == model.StateRegistered || h.State == model.StateReady || h.State == model.StateFailed
 
 	var actions strings.Builder
 	if canRebuild {
-		actions.WriteString(fmt.Sprintf(`<form method="POST" action="/hosts/%d/rebuild" class="inline"><button class="btn">Rebuild with Proxmox</button></form>`, h.ID))
+		actions.WriteString(fmt.Sprintf(`<form method="POST" action="/hosts/%d/rebuild" class="inline"><button class="btn">Rebuild</button></form>`, h.ID))
 	}
 	actions.WriteString(fmt.Sprintf(`<form method="POST" action="/hosts/%d/delete" class="inline" onsubmit="return confirm('Delete this host?')"><button class="btn btn-danger">Delete</button></form>`, h.ID))
 
@@ -106,22 +115,27 @@ func hostDetailPage(h *model.Host, ops []model.Operation) string {
 
 	return layout(h.Hostname, fmt.Sprintf(`
 		<div class="host-header">
-			<h2>%s</h2>
+			<span class="led led-lg %s"></span>
+			<h2 style="margin-bottom:0">%s</h2>
 			<span class="badge %s">%s</span>
 		</div>
-		<table class="detail-table">
-			<tr><th>MAC</th><td>%s</td></tr>
-			<tr><th>Server Type</th><td>%s</td></tr>
-			<tr><th>IP Address</th><td>%s</td></tr>
-			<tr><th>Notes</th><td>%s</td></tr>
-		</table>
-		<div class="actions">%s</div>
+		<div class="panel">
+			<table class="detail-table">
+				<tr><th>MAC</th><td>%s</td></tr>
+				<tr><th>Server Type</th><td>%s</td></tr>
+				<tr><th>IP Address</th><td>%s</td></tr>
+				<tr><th>Notes</th><td>%s</td></tr>
+			</table>
+			<div class="actions">%s</div>
+		</div>
 		<h3>Operations</h3>
-		<table class="ops-table">
-			<thead><tr><th>Kind</th><th>State</th><th>Started</th><th>Duration</th><th>Error</th></tr></thead>
-			<tbody>%s</tbody>
-		</table>
-	`, html.EscapeString(h.Hostname), stateClass, h.State, h.MAC, h.ServerType, ip, html.EscapeString(h.Notes), actions.String(), opsHTML.String()))
+		<div class="panel">
+			<table class="ops-table">
+				<thead><tr><th>Kind</th><th>State</th><th>Started</th><th>Duration</th><th>Error</th></tr></thead>
+				<tbody>%s</tbody>
+			</table>
+		</div>
+	`, led, html.EscapeString(h.Hostname), stateClass, h.State, h.MAC, h.ServerType, ip, html.EscapeString(h.Notes), actions.String(), opsHTML.String()))
 }
 
 func imagesPage(images []model.Image) string {
@@ -131,24 +145,26 @@ func imagesPage(images []model.Image) string {
 		if img.IsDefault {
 			def = `<span class="badge state-green">default</span>`
 		} else {
-			def = fmt.Sprintf(`<form method="POST" action="/images/%d/default" class="inline"><button class="btn" style="font-size:0.75rem;padding:0.2rem 0.5rem">Set Default</button></form>`, img.ID)
+			def = fmt.Sprintf(`<form method="POST" action="/images/%d/default" class="inline"><button class="btn" style="font-size:0.7rem;padding:0.25rem 0.5rem">Set Default</button></form>`, img.ID)
 		}
-		deleteBtn := fmt.Sprintf(`<form method="POST" action="/images/%d/delete" class="inline" onsubmit="return confirm('Delete image %s?')"><button class="btn btn-danger" style="font-size:0.75rem;padding:0.2rem 0.5rem">Delete</button></form>`, img.ID, html.EscapeString(img.Name))
+		deleteBtn := fmt.Sprintf(`<form method="POST" action="/images/%d/delete" class="inline" onsubmit="return confirm('Delete image %s?')"><button class="btn btn-danger" style="font-size:0.7rem;padding:0.25rem 0.5rem">Delete</button></form>`, img.ID, html.EscapeString(img.Name))
 		rows.WriteString(fmt.Sprintf(`<tr><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td><td>%s</td></tr>`,
 			html.EscapeString(img.Name), img.Kind, img.Version, def, img.CreatedAt.Format("2006-01-02"), deleteBtn))
 	}
 	if len(images) == 0 {
-		rows.WriteString(`<tr><td colspan="6" style="text-align:center;color:var(--text-muted)">No images uploaded yet.</td></tr>`)
+		rows.WriteString(`<tr><td colspan="6" class="empty">No images uploaded yet.</td></tr>`)
 	}
 	return layout("Images", fmt.Sprintf(`
 		<div class="actions">
 			<a href="/images/new" class="btn">Upload Image</a>
 			<span class="count">%d images</span>
 		</div>
-		<table class="ops-table">
-			<thead><tr><th>Name</th><th>Kind</th><th>Version</th><th>Default</th><th>Added</th><th></th></tr></thead>
-			<tbody>%s</tbody>
-		</table>
+		<div class="panel">
+			<table class="ops-table">
+				<thead><tr><th>Name</th><th>Kind</th><th>Version</th><th>Default</th><th>Added</th><th></th></tr></thead>
+				<tbody>%s</tbody>
+			</table>
+		</div>
 	`, len(images), rows.String()))
 }
 
@@ -200,6 +216,23 @@ func stateColor(s model.HostState) string {
 	}
 }
 
+func ledClass(s model.HostState) string {
+	switch s {
+	case model.StateRegistered:
+		return "led-grey"
+	case model.StatePXEReady, model.StatePXEBooted, model.StateInstalling:
+		return "led-blue"
+	case model.StateInstalled, model.StateFirstBoot, model.StateJoining:
+		return "led-amber"
+	case model.StateReady:
+		return "led-green"
+	case model.StateFailed:
+		return "led-red"
+	default:
+		return "led-grey"
+	}
+}
+
 func layout(title, body string) string {
 	return fmt.Sprintf(`<!DOCTYPE html>
 <html lang="en">
@@ -207,6 +240,9 @@ func layout(title, body string) string {
 	<meta charset="utf-8">
 	<meta name="viewport" content="width=device-width, initial-scale=1">
 	<title>%s — Provisioning</title>
+	<link rel="preconnect" href="https://fonts.googleapis.com">
+	<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+	<link href="https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Outfit:wght@400;500;600;700&display=swap" rel="stylesheet">
 	<link rel="stylesheet" href="/static/app.css">
 </head>
 <body>
@@ -216,7 +252,10 @@ func layout(title, body string) string {
 			<a href="/">Dashboard</a>
 			<a href="/images">Images</a>
 		</div>
-		<span class="sse-indicator" id="sse-dot">●</span>
+		<div class="sse-status">
+			<span class="sse-label">Link</span>
+			<span class="led led-grey" id="sse-dot"></span>
+		</div>
 	</nav>
 	<main>%s</main>
 	<script src="/static/app.js"></script>
diff --git a/internal/web/static/app.css b/internal/web/static/app.css
index 80d078b..e26ed06 100644
--- a/internal/web/static/app.css
+++ b/internal/web/static/app.css
@@ -1,138 +1,382 @@
+/* === RESET === */
 * { box-sizing: border-box; margin: 0; padding: 0; }
 
+/* === CUSTOM PROPERTIES === */
 :root {
-  --bg: #0f1419;
-  --surface: #1a2027;
-  --border: #2d3748;
-  --text: #e2e8f0;
-  --text-muted: #8892a4;
-  --accent: #60a5fa;
-  --green: #34d399;
-  --amber: #fbbf24;
-  --red: #f87171;
-  --blue: #60a5fa;
+  --bg: #f0f2f5;
+  --card: #ffffff;
+  --nav: #0c1222;
+  --nav-text: #94a3b8;
+  --nav-text-hover: #ffffff;
+  --border: #e0e4ea;
+  --border-focus: #2563eb;
+  --text: #1a2233;
+  --text-secondary: #5f6d7e;
+  --text-tertiary: #94a3b8;
+  --accent: #2563eb;
+  --accent-hover: #1d4fd8;
+  --accent-subtle: #eff4ff;
+  --green: #16a34a;
+  --green-bg: #f0fdf4;
+  --green-border: #bbf7d0;
+  --amber: #d97706;
+  --amber-bg: #fffbeb;
+  --amber-border: #fde68a;
+  --red: #dc2626;
+  --red-bg: #fef2f2;
+  --red-border: #fecaca;
+  --blue: #2563eb;
+  --blue-bg: #eff6ff;
+  --blue-border: #bfdbfe;
+  --grey: #6b7280;
+  --grey-bg: #f3f4f6;
+  --grey-border: #e5e7eb;
+  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
+  --shadow-md: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
+  --shadow-lg: 0 4px 12px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
+  --radius: 8px;
+  --radius-sm: 6px;
+  --font: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
+  --font-mono: "IBM Plex Mono", "SF Mono", "Consolas", monospace;
 }
 
+/* === GLOBAL === */
 body {
-  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
+  font-family: var(--font);
   background: var(--bg);
   color: var(--text);
   line-height: 1.5;
+  font-size: 0.95rem;
+  -webkit-font-smoothing: antialiased;
 }
 
+h2 {
+  font-weight: 600;
+  font-size: 1.35rem;
+  color: var(--text);
+  margin-bottom: 1.5rem;
+  letter-spacing: -0.01em;
+}
+
+h3 {
+  font-weight: 600;
+  font-size: 0.85rem;
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  color: var(--text-tertiary);
+  margin: 2rem 0 0.75rem;
+}
+
+/* === TOPBAR === */
 .topbar {
   display: flex;
   align-items: center;
-  gap: 1.5rem;
-  padding: 0.75rem 1.5rem;
-  background: var(--surface);
-  border-bottom: 1px solid var(--border);
+  gap: 2rem;
+  padding: 0 1.5rem;
+  height: 60px;
+  background: var(--nav);
 }
 
 .brand {
   font-weight: 700;
-  font-size: 1.1rem;
-  color: var(--accent);
+  font-size: 1.05rem;
+  color: #ffffff;
   text-decoration: none;
+  letter-spacing: -0.01em;
 }
 
-.nav-links { display: flex; gap: 1rem; }
-.nav-links a { color: var(--text-muted); text-decoration: none; font-size: 0.9rem; }
-.nav-links a:hover { color: var(--text); }
+.nav-links { display: flex; gap: 0.25rem; }
+.nav-links a {
+  color: var(--nav-text);
+  text-decoration: none;
+  font-size: 0.9rem;
+  font-weight: 500;
+  padding: 0.375rem 0.75rem;
+  border-radius: var(--radius-sm);
+  transition: color 0.15s, background 0.15s;
+}
+.nav-links a:hover {
+  color: var(--nav-text-hover);
+  background: rgba(255, 255, 255, 0.08);
+}
 
-.sse-indicator { margin-left: auto; color: var(--green); font-size: 0.8rem; }
-.sse-indicator.disconnected { color: var(--red); }
+.sse-status {
+  margin-left: auto;
+  display: flex;
+  align-items: center;
+  gap: 0.375rem;
+}
+.sse-label {
+  font-size: 0.7rem;
+  font-weight: 500;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+  color: var(--nav-text);
+}
 
-main { padding: 1.5rem; max-width: 1200px; margin: 0 auto; }
-
-.actions { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
-.count { color: var(--text-muted); font-size: 0.85rem; }
-
-.btn {
+/* === LED === */
+.led {
   display: inline-block;
-  padding: 0.5rem 1rem;
+  width: 7px;
+  height: 7px;
+  border-radius: 50%;
+  background: currentColor;
+  flex-shrink: 0;
+}
+.led-green { color: var(--green); }
+.led-amber { color: var(--amber); animation: pulse 2s ease-in-out infinite; }
+.led-red { color: var(--red); animation: pulse 1.5s ease-in-out infinite; }
+.led-blue { color: var(--blue); animation: pulse 2.5s ease-in-out infinite; }
+.led-grey { color: var(--grey); }
+
+.led-lg { width: 9px; height: 9px; }
+
+/* Navbar LED uses lighter colors */
+.topbar .led-green { color: #4ade80; }
+.topbar .led-red { color: #f87171; }
+.topbar .led-grey { color: var(--nav-text); }
+
+/* === LAYOUT === */
+main {
+  padding: 2rem;
+  max-width: 1200px;
+  margin: 0 auto;
+}
+
+/* === BUTTONS === */
+.btn {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.375rem;
+  padding: 0.5rem 1.1rem;
   background: var(--accent);
-  color: #000;
+  color: #ffffff;
   border: none;
-  border-radius: 4px;
+  border-radius: var(--radius-sm);
   cursor: pointer;
   text-decoration: none;
-  font-size: 0.85rem;
+  font-size: 0.875rem;
+  font-family: var(--font);
+  font-weight: 500;
+  transition: background 0.15s, box-shadow 0.15s;
+  box-shadow: var(--shadow-sm);
+}
+.btn:hover {
+  background: var(--accent-hover);
+  box-shadow: var(--shadow-md);
+}
+.btn-danger {
+  background: var(--red);
+}
+.btn-danger:hover {
+  background: #b91c1c;
+}
+.btn-sm {
+  font-size: 0.75rem;
+  padding: 0.3rem 0.6rem;
+}
+
+/* === ACTIONS === */
+.actions {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  margin-bottom: 1.5rem;
+}
+.count {
+  color: var(--text-tertiary);
+  font-size: 0.8rem;
   font-weight: 500;
 }
-.btn:hover { opacity: 0.9; }
-.btn-danger { background: var(--red); }
 
-.host-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
+/* === HOST GRID === */
+.host-grid {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
+  gap: 1rem;
+}
 
 .tile {
   display: block;
-  padding: 1rem;
-  background: var(--surface);
+  padding: 1.25rem 1.5rem;
+  background: var(--card);
   border: 1px solid var(--border);
-  border-radius: 6px;
+  border-radius: var(--radius);
   text-decoration: none;
   color: var(--text);
-  transition: border-color 0.15s;
+  transition: border-color 0.15s, box-shadow 0.2s;
+  box-shadow: var(--shadow-sm);
+}
+.tile:hover {
+  border-color: var(--accent);
+  box-shadow: var(--shadow-lg);
 }
-.tile:hover { border-color: var(--accent); }
-.tile-name { font-weight: 600; margin-bottom: 0.25rem; }
-.tile-type { font-size: 0.8rem; color: var(--text-muted); }
-.tile-state { font-size: 0.8rem; margin-top: 0.5rem; padding: 0.15rem 0.5rem; border-radius: 3px; display: inline-block; }
-.tile-mac { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.5rem; font-family: monospace; }
 
-.state-grey .tile-state { background: #374151; color: #9ca3af; }
-.state-blue .tile-state { background: #1e3a5f; color: var(--blue); }
-.state-amber .tile-state { background: #422006; color: var(--amber); }
-.state-green .tile-state { background: #064e3b; color: var(--green); }
-.state-red .tile-state { background: #450a0a; color: var(--red); }
+.tile-header {
+  display: flex;
+  align-items: center;
+  gap: 0.625rem;
+  margin-bottom: 0.5rem;
+}
+.tile-name {
+  font-weight: 600;
+  font-size: 1rem;
+  color: var(--text);
+  font-family: var(--font-mono);
+}
 
-.host-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
-.badge { padding: 0.2rem 0.6rem; border-radius: 3px; font-size: 0.8rem; }
-.state-grey .badge, .badge.state-grey { background: #374151; color: #9ca3af; }
-.state-blue .badge, .badge.state-blue { background: #1e3a5f; color: var(--blue); }
-.state-amber .badge, .badge.state-amber { background: #422006; color: var(--amber); }
-.state-green .badge, .badge.state-green { background: #064e3b; color: var(--green); }
-.state-red .badge, .badge.state-red { background: #450a0a; color: var(--red); }
+.tile-meta { margin-bottom: 0.75rem; }
+.tile-type {
+  font-size: 0.85rem;
+  color: var(--text-secondary);
+}
 
+.tile-footer {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding-top: 0.75rem;
+  border-top: 1px solid var(--border);
+}
+.tile-mac {
+  font-size: 0.8rem;
+  font-family: var(--font-mono);
+  color: var(--text-tertiary);
+}
+
+/* === STATUS BADGES === */
+.tile-state-label, .badge {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.375rem;
+  font-size: 0.75rem;
+  font-weight: 600;
+  text-transform: uppercase;
+  letter-spacing: 0.03em;
+  padding: 0.2rem 0.5rem;
+  border-radius: 4px;
+}
+
+.state-grey .tile-state-label, .badge.state-grey { background: var(--grey-bg); color: var(--grey); border: 1px solid var(--grey-border); }
+.state-blue .tile-state-label, .badge.state-blue { background: var(--blue-bg); color: var(--blue); border: 1px solid var(--blue-border); }
+.state-amber .tile-state-label, .badge.state-amber { background: var(--amber-bg); color: var(--amber); border: 1px solid var(--amber-border); }
+.state-green .tile-state-label, .badge.state-green { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
+.state-red .tile-state-label, .badge.state-red { background: var(--red-bg); color: var(--red); border: 1px solid var(--red-border); }
+
+/* === PANELS === */
+.panel {
+  background: var(--card);
+  border: 1px solid var(--border);
+  border-radius: var(--radius);
+  padding: 1.5rem;
+  box-shadow: var(--shadow-sm);
+  margin-bottom: 1rem;
+}
+
+/* === HOST DETAIL === */
+.host-header {
+  display: flex;
+  align-items: center;
+  gap: 0.75rem;
+  margin-bottom: 1.5rem;
+}
+.host-header h2 { margin-bottom: 0; }
+
+/* === TABLES === */
 .detail-table { margin-bottom: 1.5rem; }
-.detail-table th { text-align: left; padding: 0.4rem 1rem 0.4rem 0; color: var(--text-muted); font-weight: 500; }
-.detail-table td { padding: 0.4rem 0; }
+.detail-table th {
+  text-align: left;
+  padding: 0.5rem 1.5rem 0.5rem 0;
+  color: var(--text-tertiary);
+  font-weight: 500;
+  font-size: 0.825rem;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+}
+.detail-table td {
+  padding: 0.5rem 0;
+  color: var(--text);
+  font-family: var(--font-mono);
+  font-size: 0.9rem;
+}
 
-.ops-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
-.ops-table th { text-align: left; padding: 0.5rem; border-bottom: 1px solid var(--border); color: var(--text-muted); }
-.ops-table td { padding: 0.5rem; border-bottom: 1px solid var(--border); }
+.ops-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
+.ops-table th {
+  text-align: left;
+  padding: 0.625rem 0.75rem;
+  border-bottom: 2px solid var(--border);
+  color: var(--text-tertiary);
+  font-weight: 600;
+  font-size: 0.75rem;
+  text-transform: uppercase;
+  letter-spacing: 0.04em;
+}
+.ops-table td {
+  padding: 0.625rem 0.75rem;
+  border-bottom: 1px solid var(--border);
+  color: var(--text);
+}
+.ops-table tr:hover td { background: var(--accent-subtle); }
 
-.form { max-width: 400px; }
-.form label { display: block; margin-bottom: 1rem; color: var(--text-muted); font-size: 0.85rem; }
+/* === FORMS === */
+.form { max-width: 420px; }
+.form label {
+  display: block;
+  margin-bottom: 1.25rem;
+  color: var(--text-secondary);
+  font-size: 0.85rem;
+  font-weight: 500;
+}
 .form input, .form select, .form textarea {
   display: block;
   width: 100%;
-  padding: 0.5rem;
-  margin-top: 0.25rem;
-  background: var(--bg);
+  padding: 0.55rem 0.75rem;
+  margin-top: 0.375rem;
+  background: var(--card);
   border: 1px solid var(--border);
-  border-radius: 4px;
+  border-radius: var(--radius-sm);
   color: var(--text);
+  font-family: var(--font-mono);
   font-size: 0.9rem;
+  transition: border-color 0.15s, box-shadow 0.15s;
 }
-.form textarea { min-height: 60px; resize: vertical; }
+.form input:focus, .form select:focus, .form textarea:focus {
+  outline: none;
+  border-color: var(--border-focus);
+  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
+}
+.form select { font-family: var(--font); }
+.form textarea { min-height: 80px; resize: vertical; }
 .form .btn { margin-top: 0.5rem; }
 
-.error { background: #450a0a; color: var(--red); padding: 0.75rem; border-radius: 4px; margin-bottom: 1rem; font-size: 0.85rem; }
-.empty { color: var(--text-muted); padding: 2rem; text-align: center; }
-.empty a { color: var(--accent); }
-.inline { display: inline; }
-h2 { margin-bottom: 1rem; }
-h3 { margin: 1.5rem 0 0.75rem; color: var(--text-muted); font-size: 0.95rem; }
+/* === ERROR === */
+.error {
+  background: var(--red-bg);
+  color: var(--red);
+  padding: 0.75rem 1rem;
+  border: 1px solid var(--red-border);
+  border-radius: var(--radius-sm);
+  margin-bottom: 1rem;
+  font-size: 0.825rem;
+  font-weight: 500;
+}
 
-.upload-progress { max-width: 400px; }
+/* === EMPTY STATE === */
+.empty {
+  color: var(--text-tertiary);
+  padding: 3rem;
+  text-align: center;
+}
+.empty a { color: var(--accent); text-decoration: none; font-weight: 500; }
+.empty a:hover { text-decoration: underline; }
+
+/* === UPLOAD PROGRESS === */
+.upload-progress { max-width: 420px; }
 .progress-bar-track {
   width: 100%;
-  height: 8px;
+  height: 6px;
   background: var(--bg);
-  border: 1px solid var(--border);
-  border-radius: 4px;
+  border-radius: 3px;
   margin: 0.75rem 0;
   overflow: hidden;
 }
@@ -140,9 +384,25 @@ h3 { margin: 1.5rem 0 0.75rem; color: var(--text-muted); font-size: 0.95rem; }
   height: 100%;
   width: 0%;
   background: var(--accent);
-  border-radius: 4px;
+  border-radius: 3px;
   transition: width 0.3s ease;
 }
 .progress-bar-fill.complete { background: var(--green); }
-.progress-text { font-size: 0.85rem; color: var(--text); margin-bottom: 0.25rem; }
-.progress-detail { font-size: 0.8rem; color: var(--text-muted); }
+.progress-text { font-size: 0.825rem; color: var(--text); font-weight: 500; }
+.progress-detail { font-size: 0.775rem; color: var(--text-secondary); }
+
+/* === UTILITY === */
+.inline { display: inline; }
+
+/* === ANIMATIONS === */
+@keyframes pulse {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0.4; }
+}
+
+/* === RESPONSIVE === */
+@media (max-width: 720px) {
+  .host-grid { grid-template-columns: 1fr; }
+  main { padding: 1.25rem; }
+  .topbar { padding: 0 1rem; gap: 1rem; }
+}
diff --git a/internal/web/static/app.js b/internal/web/static/app.js
index 743d617..c417ff5 100644
--- a/internal/web/static/app.js
+++ b/internal/web/static/app.js
@@ -5,13 +5,13 @@
   function connect() {
     es = new EventSource('/events');
     es.addEventListener('hello', function() {
-      dot.classList.remove('disconnected');
+      dot.className = 'led led-green';
     });
     es.addEventListener('host.state_changed', function() {
       window.location.reload();
     });
     es.onerror = function() {
-      dot.classList.add('disconnected');
+      dot.className = 'led led-red';
       es.close();
       setTimeout(connect, 3000);
     };