feat: server health gauges (CPU/RAM/Temp), condensed UniFi DMP, NAS space display

- ServerStatsWidget: 3 SVG ring gauges per server with color thresholds
- Servers API: added cpuTemp from node_hwmon_temp_celsius
- NetworkWidget: condensed DMP view (WAN/WLAN/LAN health subsystems)
- UniFi API: parallel fetch of stat/device + stat/health
- SynologyWidget: prominent total/available space display

src/app/api/servers/route.ts

@@ -8,52 +8,41 @@ const INSTANCE_MAP: Record<string, { name: string; role: string }> = {
   "192.168.1.51": { name: "RoadRunner", role: "GPU Node - Fast" },
 };
 
+export const dynamic = "force-dynamic";
+
 async function queryPrometheus(query: string): Promise<any[]> {
   try {
     const url = `${PROMETHEUS_URL}/api/v1/query?query=${encodeURIComponent(query)}`;
     const res = await fetch(url, { cache: "no-store" });
     if (!res.ok) return [];
     const json = await res.json();
-    if (json.status === "success" && json.data?.result) {
-      return json.data.result;
-    }
-    return [];
-  } catch {
-    return [];
-  }
+    return json.status === "success" ? (json.data?.result || []) : [];
+  } catch { return []; }
 }
 
 function extractByInstance(results: any[]): Record<string, number> {
   const map: Record<string, number> = {};
   for (const r of results) {
-    const instance: string = r.metric?.instance || "";
-    const ip = instance.replace(/:\d+$/, "");
+    const ip = (r.metric?.instance || "").replace(/:\d+$/, "");
     const val = parseFloat(r.value?.[1] || "0");
-    if (!isNaN(val)) {
-      map[ip] = val;
-    }
+    if (!isNaN(val)) map[ip] = val;
   }
   return map;
 }
 
 export async function GET() {
   try {
-    const [cpuRes, memPercentRes, memTotalRes, memAvailRes, diskRes, uptimeBootRes, uptimeNowRes, loadRes] =
+    const [cpuRes, memPercentRes, memTotalRes, memAvailRes, diskRes, uptimeBootRes, uptimeNowRes, loadRes, tempRes] =
       await Promise.all([
-        queryPrometheus(
-          '100 - (avg by(instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100)'
-        ),
-        queryPrometheus(
-          "(1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) * 100"
-        ),
+        queryPrometheus('100 - (avg by(instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100)'),
+        queryPrometheus("(1 - node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes) * 100"),
         queryPrometheus("node_memory_MemTotal_bytes"),
         queryPrometheus("node_memory_MemAvailable_bytes"),
-        queryPrometheus(
-          '100 - (node_filesystem_avail_bytes{mountpoint="/"} / node_filesystem_size_bytes{mountpoint="/"} * 100)'
-        ),
+        queryPrometheus('100 - (node_filesystem_avail_bytes{mountpoint="/"} / node_filesystem_size_bytes{mountpoint="/"} * 100)'),
         queryPrometheus("node_boot_time_seconds"),
         queryPrometheus("node_time_seconds"),
         queryPrometheus("node_load1"),
+        queryPrometheus('node_hwmon_temp_celsius{chip="thermal_thermal_zone0",sensor="temp0"}'),
       ]);
 
     const cpuMap = extractByInstance(cpuRes);
@@ -64,11 +53,11 @@ export async function GET() {
     const bootMap = extractByInstance(uptimeBootRes);
     const nowMap = extractByInstance(uptimeNowRes);
     const loadMap = extractByInstance(loadRes);
+    const tempMap = extractByInstance(tempRes);
 
     const servers = Object.entries(INSTANCE_MAP).map(([ip, info]) => {
       const memTotalBytes = memTotalMap[ip] || 0;
       const memAvailBytes = memAvailMap[ip] || 0;
-      const memUsedBytes = memTotalBytes - memAvailBytes;
       const uptimeSeconds = (nowMap[ip] || 0) - (bootMap[ip] || 0);
 
       return {
@@ -76,8 +65,9 @@ export async function GET() {
         role: info.role,
         ip,
         cpu: parseFloat((cpuMap[ip] || 0).toFixed(1)),
+        cpuTemp: tempMap[ip] !== undefined ? parseFloat(tempMap[ip].toFixed(0)) : null,
         memoryPercent: parseFloat((memPercentMap[ip] || 0).toFixed(1)),
-        memoryUsedGB: parseFloat((memUsedBytes / 1073741824).toFixed(1)),
+        memoryUsedGB: parseFloat(((memTotalBytes - memAvailBytes) / 1073741824).toFixed(1)),
         memoryTotalGB: parseFloat((memTotalBytes / 1073741824).toFixed(1)),
         diskPercent: parseFloat((diskMap[ip] || 0).toFixed(1)),
         uptimeSeconds: Math.floor(uptimeSeconds > 0 ? uptimeSeconds : 0),

src/app/api/unifi/route.ts

@@ -8,14 +8,9 @@ const UNIFI_PASSWORD = process.env.UNIFI_PASSWORD;
 
 export const dynamic = "force-dynamic";
 
-/** Low-level HTTPS request that ignores self-signed certs and returns cookies */
 function httpsRequest(
   url: string,
-  opts: {
-    method?: string;
-    headers?: Record<string, string>;
-    body?: string;
-  } = {}
+  opts: { method?: string; headers?: Record<string, string>; body?: string } = {}
 ): Promise<{ status: number; headers: Record<string, string[]>; body: string }> {
   return new Promise((resolve, reject) => {
     const parsed = new URL(url);
@@ -47,81 +42,99 @@ function httpsRequest(
 
 export async function GET() {
   if (!UNIFI_USERNAME || !UNIFI_PASSWORD) {
-    return NextResponse.json(
-      { error: "UniFi credentials not configured" },
-      { status: 500 }
-    );
+    return NextResponse.json({ error: "UniFi credentials not configured" }, { status: 500 });
   }
 
   try {
     const baseUrl = `https://${UNIFI_HOST}:${UNIFI_PORT}`;
 
-    // Step 1: Login to UniFi OS
+    // Login
     const loginResp = await httpsRequest(`${baseUrl}/api/auth/login`, {
       method: "POST",
       headers: { "Content-Type": "application/json" },
-      body: JSON.stringify({
-        username: UNIFI_USERNAME,
-        password: UNIFI_PASSWORD,
-      }),
+      body: JSON.stringify({ username: UNIFI_USERNAME, password: UNIFI_PASSWORD }),
     });
 
     if (loginResp.status !== 200) {
-      console.error("UniFi login failed:", loginResp.status, loginResp.body.slice(0, 200));
-      return NextResponse.json(
-        { error: `UniFi login failed: ${loginResp.status}` },
-        { status: 401 }
-      );
+      return NextResponse.json({ error: `UniFi login failed: ${loginResp.status}` }, { status: 401 });
     }
 
-    // Extract session cookies
     const setCookies = loginResp.headers["set-cookie"] || [];
-    const cookieStr = setCookies
-      .map((c) => c.split(";")[0])
-      .join("; ");
-
-    // Extract CSRF token if present
+    const cookieStr = setCookies.map((c) => c.split(";")[0]).join("; ");
     const csrfToken = (loginResp.headers["x-csrf-token"] || [])[0] || "";
-
-    // Step 2: Fetch devices
     const reqHeaders: Record<string, string> = { Cookie: cookieStr };
     if (csrfToken) reqHeaders["x-csrf-token"] = csrfToken;
 
-    const devicesResp = await httpsRequest(
-      `${baseUrl}/proxy/network/api/s/default/stat/device`,
-      { headers: reqHeaders }
-    );
+    // Fetch devices + health in parallel
+    const [devicesResp, healthResp] = await Promise.all([
+      httpsRequest(`${baseUrl}/proxy/network/api/s/default/stat/device`, { headers: reqHeaders }),
+      httpsRequest(`${baseUrl}/proxy/network/api/s/default/stat/health`, { headers: reqHeaders }),
+    ]);
 
-    if (devicesResp.status !== 200) {
-      console.error("UniFi device fetch failed:", devicesResp.status);
-      return NextResponse.json(
-        { error: `UniFi device fetch failed: ${devicesResp.status}` },
-        { status: 502 }
-      );
-    }
-
-    const devicesData = JSON.parse(devicesResp.body);
-    const rawDevices = devicesData?.data || [];
-
-    const devices = rawDevices.map((device: any) => ({
-      name: device.name || device.model || "Unknown",
-      mac: device.mac || "",
-      ip: device.ip || "",
-      model: device.model || "",
-      type: device.type || "",
-      state: device.state ?? 0,
-      uptime: device.uptime || 0,
-      clients: device.num_sta || 0,
-      satisfaction: device.satisfaction ?? null,
-      version: device.version || "",
+    // Parse devices
+    const rawDevices = devicesResp.status === 200 ? (JSON.parse(devicesResp.body)?.data || []) : [];
+    const devices = rawDevices.map((d: any) => ({
+      name: d.name || d.model || "Unknown",
+      mac: d.mac || "",
+      ip: d.ip || "",
+      model: d.model || "",
+      type: d.type || "",
+      state: d.state ?? 0,
+      uptime: d.uptime || 0,
+      clients: d.num_sta || 0,
     }));
 
-    return NextResponse.json(devices);
+    // Parse health subsystems
+    const rawHealth = healthResp.status === 200 ? (JSON.parse(healthResp.body)?.data || []) : [];
+    const health: Record<string, any> = {};
+    for (const h of rawHealth) {
+      const sub = h.subsystem;
+      if (sub === "wan") {
+        health.wan = {
+          status: h.status,
+          wanIp: h.wan_ip || "",
+          isp: h.isp_name || "",
+          txRate: h["tx_bytes-r"] || 0,
+          rxRate: h["rx_bytes-r"] || 0,
+          gateways: h.num_gw || 0,
+          clients: h.num_sta || 0,
+        };
+      } else if (sub === "www") {
+        health.www = {
+          status: h.status,
+          latency: h.latency || 0,
+          uptime: h.uptime || 0,
+          downSpeed: h.xput_down || 0,
+          upSpeed: h.xput_up || 0,
+        };
+      } else if (sub === "wlan") {
+        health.wlan = {
+          status: h.status,
+          adopted: h.num_adopted || 0,
+          clients: h.num_user || 0,
+          aps: h.num_ap || 0,
+          txRate: h["tx_bytes-r"] || 0,
+          rxRate: h["rx_bytes-r"] || 0,
+        };
+      } else if (sub === "lan") {
+        health.lan = {
+          status: h.status,
+          adopted: h.num_adopted || 0,
+          clients: h.num_user || 0,
+          switches: h.num_sw || 0,
+          txRate: h["tx_bytes-r"] || 0,
+          rxRate: h["rx_bytes-r"] || 0,
+        };
+      } else if (sub === "vpn") {
+        health.vpn = { status: h.status };
+      }
+    }
+
+    const totalClients = devices.reduce((s: number, d: any) => s + d.clients, 0);
+
+    return NextResponse.json({ devices, health, totalClients });
   } catch (error: any) {
     console.error("UniFi API error:", error?.message || error);
-    return NextResponse.json(
-      { error: "Failed to fetch UniFi devices" },
-      { status: 500 }
-    );
+    return NextResponse.json({ error: "Failed to fetch UniFi data" }, { status: 500 });
   }
 }

src/components/NetworkWidget.tsx

@@ -1,7 +1,7 @@
 "use client";
 
 import { useEffect, useState } from "react";
-import { Wifi, Router, Monitor, Signal, WifiOff } from "lucide-react";
+import { Wifi, Globe, Router, Monitor, Signal, WifiOff, ArrowDown, ArrowUp, Activity } from "lucide-react";
 
 interface UnifiDevice {
   name: string;
@@ -12,63 +12,96 @@ interface UnifiDevice {
   state: number;
   uptime: number;
   clients: number;
-  satisfaction: number | null;
-  version: string;
 }
 
-function formatUptime(seconds: number): string {
-  if (!seconds) return "—";
-  const d = Math.floor(seconds / 86400);
-  const h = Math.floor((seconds % 86400) / 3600);
+interface HealthSub {
+  status: string;
+  wanIp?: string;
+  isp?: string;
+  txRate?: number;
+  rxRate?: number;
+  latency?: number;
+  uptime?: number;
+  clients?: number;
+  aps?: number;
+  switches?: number;
+  adopted?: number;
+}
+
+interface UnifiData {
+  devices: UnifiDevice[];
+  health: Record<string, HealthSub>;
+  totalClients: number;
+}
+
+function formatRate(bps: number): string {
+  if (bps >= 1024 * 1024) return (bps / (1024 ** 2)).toFixed(1) + " MB/s";
+  if (bps >= 1024) return (bps / 1024).toFixed(1) + " KB/s";
+  return bps.toFixed(0) + " B/s";
+}
+
+function formatUptime(sec: number): string {
+  if (!sec) return "—";
+  const d = Math.floor(sec / 86400);
+  const h = Math.floor((sec % 86400) / 3600);
   if (d > 0) return `${d}d ${h}h`;
-  const m = Math.floor((seconds % 3600) / 60);
+  const m = Math.floor((sec % 3600) / 60);
   return `${h}h ${m}m`;
 }
 
-function deviceIcon(type: string) {
-  switch (type) {
-    case "uap": return <Wifi className="w-3.5 h-3.5" />;
-    case "usw": return <Monitor className="w-3.5 h-3.5" />;
-    case "ugw":
-    case "udm": return <Router className="w-3.5 h-3.5" />;
-    default: return <Signal className="w-3.5 h-3.5" />;
-  }
+function StatusDot({ status }: { status: string }) {
+  const color = status === "ok" ? "bg-green-400" : status === "unknown" ? "bg-gray-500" : "bg-yellow-400";
+  return <span className={`inline-block w-2 h-2 rounded-full ${color}`} />;
 }
 
 export default function NetworkWidget() {
-  const [devices, setDevices] = useState<UnifiDevice[]>([]);
+  const [data, setData] = useState<UnifiData | null>(null);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState(false);
 
   useEffect(() => {
-    fetchDevices();
-    const interval = setInterval(fetchDevices, 30000);
+    fetchData();
+    const interval = setInterval(fetchData, 30000);
     return () => clearInterval(interval);
   }, []);
 
-  const fetchDevices = async () => {
+  const fetchData = async () => {
     try {
       const response = await fetch("/api/unifi");
       if (response.ok) {
-        const data = await response.json();
-        if (Array.isArray(data)) {
-          setDevices(data);
-          setError(false);
-        } else {
-          setError(true);
-        }
-      } else {
-        setError(true);
-      }
+        const json = await response.json();
+        if (json.devices) { setData(json); setError(false); }
+        else setError(true);
+      } else setError(true);
       setLoading(false);
-    } catch {
-      setError(true);
-      setLoading(false);
-    }
+    } catch { setError(true); setLoading(false); }
   };
 
-  const totalClients = devices.reduce((sum, d) => sum + d.clients, 0);
-  const onlineDevices = devices.filter((d) => d.state === 1).length;
+  if (loading) return (
+    <div className="bg-gray-800/40 backdrop-blur-sm rounded-lg border border-gray-700 p-6">
+      <h3 className="text-lg font-semibold text-white flex items-center gap-2 mb-4">
+        <Wifi className="w-5 h-5 text-blue-500" /> UniFi Network
+      </h3>
+      <div className="flex justify-center py-8">
+        <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-500" />
+      </div>
+    </div>
+  );
+
+  if (error || !data) return (
+    <div className="bg-gray-800/40 backdrop-blur-sm rounded-lg border border-gray-700 p-6">
+      <h3 className="text-lg font-semibold text-white flex items-center gap-2 mb-4">
+        <Wifi className="w-5 h-5 text-blue-500" /> UniFi Network
+      </h3>
+      <div className="text-center py-8">
+        <WifiOff className="w-12 h-12 text-gray-600 mx-auto mb-2" />
+        <p className="text-sm text-gray-400">No network data</p>
+      </div>
+    </div>
+  );
+
+  const { wan, www, wlan, lan } = data.health;
+  const onlineDevices = data.devices.filter(d => d.state === 1).length;
 
   return (
     <div className="bg-gray-800/40 backdrop-blur-sm rounded-lg border border-gray-700 p-6">
@@ -77,56 +110,111 @@ export default function NetworkWidget() {
           <Wifi className="w-5 h-5 text-blue-500" />
           UniFi Network
         </h3>
-        {!loading && !error && devices.length > 0 && (
-          <div className="flex items-center gap-3 text-xs text-gray-400">
-            <span className="flex items-center gap-1">
-              <Signal className="w-3 h-3 text-green-400" />
-              {totalClients} clients
+        <span className="text-xs text-gray-400">{onlineDevices}/{data.devices.length} devices</span>
+      </div>
+
+      {/* Top stats row */}
+      <div className="grid grid-cols-3 gap-3 mb-4">
+        <div className="bg-gray-900/50 rounded-lg p-3 text-center">
+          <div className="text-2xl font-bold text-white">{data.totalClients}</div>
+          <div className="text-xs text-gray-400">Clients</div>
+        </div>
+        <div className="bg-gray-900/50 rounded-lg p-3 text-center">
+          <div className="text-2xl font-bold text-white">{wlan?.clients || 0}</div>
+          <div className="text-xs text-gray-400">Wireless</div>
+        </div>
+        <div className="bg-gray-900/50 rounded-lg p-3 text-center">
+          <div className="text-2xl font-bold text-white">{lan?.clients || 0}</div>
+          <div className="text-xs text-gray-400">Wired</div>
+        </div>
+      </div>
+
+      {/* WAN status */}
+      {wan && (
+        <div className="bg-gray-900/50 rounded-lg p-3 mb-3">
+          <div className="flex items-center justify-between mb-2">
+            <span className="text-sm font-medium text-gray-200 flex items-center gap-2">
+              <Globe className="w-3.5 h-3.5 text-blue-400" />
+              WAN
+              <StatusDot status={wan.status} />
             </span>
-            <span>{onlineDevices}/{devices.length} online</span>
+            <span className="text-xs text-gray-500">{wan.wanIp}</span>
+          </div>
+          <div className="flex items-center justify-between text-xs">
+            <span className="text-gray-400">{wan.isp}</span>
+            <div className="flex items-center gap-3">
+              <span className="flex items-center gap-1 text-green-400">
+                <ArrowDown className="w-3 h-3" />{formatRate(wan.rxRate || 0)}
+              </span>
+              <span className="flex items-center gap-1 text-blue-400">
+                <ArrowUp className="w-3 h-3" />{formatRate(wan.txRate || 0)}
+              </span>
+            </div>
+          </div>
+          {www && (
+            <div className="flex items-center gap-4 mt-2 text-xs text-gray-500">
+              <span className="flex items-center gap-1">
+                <Activity className="w-3 h-3" />{www.latency}ms latency
+              </span>
+              <span>Uptime: {formatUptime(www.uptime || 0)}</span>
+            </div>
+          )}
+        </div>
+      )}
+
+      {/* WLAN + LAN row */}
+      <div className="grid grid-cols-2 gap-3 mb-3">
+        {wlan && (
+          <div className="bg-gray-900/50 rounded-lg p-3">
+            <div className="flex items-center gap-2 mb-1">
+              <Wifi className="w-3.5 h-3.5 text-green-400" />
+              <span className="text-sm font-medium text-gray-200">WiFi</span>
+              <StatusDot status={wlan.status} />
+            </div>
+            <div className="text-xs text-gray-400">
+              {wlan.aps} APs &middot; {wlan.clients} clients
+            </div>
+            <div className="flex items-center gap-2 mt-1 text-xs">
+              <span className="text-green-400 flex items-center gap-0.5"><ArrowDown className="w-2.5 h-2.5" />{formatRate(wlan.rxRate || 0)}</span>
+              <span className="text-blue-400 flex items-center gap-0.5"><ArrowUp className="w-2.5 h-2.5" />{formatRate(wlan.txRate || 0)}</span>
+            </div>
+          </div>
+        )}
+        {lan && (
+          <div className="bg-gray-900/50 rounded-lg p-3">
+            <div className="flex items-center gap-2 mb-1">
+              <Monitor className="w-3.5 h-3.5 text-purple-400" />
+              <span className="text-sm font-medium text-gray-200">LAN</span>
+              <StatusDot status={lan.status} />
+            </div>
+            <div className="text-xs text-gray-400">
+              {lan.switches} switches &middot; {lan.clients} clients
+            </div>
+            <div className="flex items-center gap-2 mt-1 text-xs">
+              <span className="text-green-400 flex items-center gap-0.5"><ArrowDown className="w-2.5 h-2.5" />{formatRate(lan.rxRate || 0)}</span>
+              <span className="text-blue-400 flex items-center gap-0.5"><ArrowUp className="w-2.5 h-2.5" />{formatRate(lan.txRate || 0)}</span>
+            </div>
           </div>
         )}
       </div>
 
-      {loading ? (
-        <div className="flex justify-center py-8">
-          <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-500"></div>
-        </div>
-      ) : error || devices.length === 0 ? (
-        <div className="text-center py-8">
-          <WifiOff className="w-12 h-12 text-gray-600 mx-auto mb-2" />
-          <p className="text-sm text-gray-400">No network data available</p>
-        </div>
-      ) : (
-        <div className="space-y-2">
-          {devices
+      {/* Device list - compact */}
+      <div className="border-t border-gray-700/50 pt-3">
+        <p className="text-xs text-gray-500 mb-2">Devices</p>
+        <div className="grid grid-cols-2 gap-1">
+          {data.devices
             .sort((a, b) => b.clients - a.clients)
             .map((dev) => (
-            <div key={dev.mac} className="bg-gray-900/50 rounded-lg p-3">
-              <div className="flex justify-between items-center">
-                <div className="flex items-center gap-2">
-                  <span className={dev.state === 1 ? "text-green-400" : "text-red-400"}>
-                    {deviceIcon(dev.type)}
-                  </span>
-                  <div>
-                    <span className="text-sm font-medium text-gray-200">{dev.name}</span>
-                    <span className="text-xs text-gray-500 ml-2">{dev.model}</span>
+              <div key={dev.mac} className="flex items-center justify-between text-xs py-1 px-2 rounded bg-gray-900/30">
+                <div className="flex items-center gap-1.5 truncate">
+                  <span className={`w-1.5 h-1.5 rounded-full ${dev.state === 1 ? "bg-green-400" : "bg-red-400"}`} />
+                  <span className="text-gray-300 truncate">{dev.name}</span>
                 </div>
-                </div>
-                <div className="flex items-center gap-3 text-xs text-gray-400">
-                  {dev.clients > 0 && (
-                    <span className="text-blue-400">{dev.clients} clients</span>
-                  )}
-                  <span>{formatUptime(dev.uptime)}</span>
-                </div>
-              </div>
-              {dev.ip && (
-                <div className="text-xs text-gray-500 mt-1 ml-6">{dev.ip}</div>
-              )}
+                {dev.clients > 0 && <span className="text-gray-500 ml-1">{dev.clients}</span>}
               </div>
             ))}
         </div>
-      )}
+      </div>
     </div>
   );
 }

src/components/ServerStatsWidget.tsx

@@ -1,154 +1,194 @@
 "use client";
 
 import { useEffect, useState } from "react";
-import { motion } from "framer-motion";
-import { Cpu, HardDrive, Clock, Server } from "lucide-react";
-import { ServerStats } from "@/types";
+import { Cpu, HardDrive, Clock, Server, Thermometer, MemoryStick } from "lucide-react";
 
-function StatBar({
-  label,
-  value,
-  icon,
-}: {
-  label: string;
-  value: number;
-  icon: React.ReactNode;
-}) {
-  const color =
-    value < 50
-      ? "from-green-500 to-green-400"
-      : value < 80
-      ? "from-yellow-500 to-yellow-400"
-      : "from-red-500 to-red-400";
+interface ServerData {
+  name: string;
+  role: string;
+  ip: string;
+  cpu: number;
+  cpuTemp: number | null;
+  memoryPercent: number;
+  memoryUsedGB: number;
+  memoryTotalGB: number;
+  diskPercent: number;
+  uptimeSeconds: number;
+  load1: number;
+}
+
+function formatUptime(sec: number): string {
+  if (!sec) return "—";
+  const d = Math.floor(sec / 86400);
+  const h = Math.floor((sec % 86400) / 3600);
+  return d > 0 ? `${d}d ${h}h` : `${h}h`;
+}
+
+function GaugeRing({ value, max, color, size = 72 }: { value: number; max: number; color: string; size?: number }) {
+  const pct = Math.min((value / max) * 100, 100);
+  const radius = (size - 8) / 2;
+  const circumference = 2 * Math.PI * radius;
+  const strokeDashoffset = circumference - (pct / 100) * circumference;
 
   return (
-    <div className="space-y-1">
-      <div className="flex items-center justify-between text-xs">
-        <span className="text-gray-400 flex items-center gap-1">
-          {icon}
-          {label}
-        </span>
-        <span className="text-gray-300 font-mono">{value.toFixed(1)}%</span>
-      </div>
-      <div className="h-2 bg-gray-700 rounded-full overflow-hidden">
-        <motion.div
-          className={`h-full rounded-full bg-gradient-to-r ${color}`}
-          initial={{ width: 0 }}
-          animate={{ width: `${Math.min(value, 100)}%` }}
-          transition={{ duration: 0.8, ease: "easeOut" }}
+    <svg width={size} height={size} className="-rotate-90">
+      <circle cx={size/2} cy={size/2} r={radius} fill="none" stroke="rgba(255,255,255,0.05)" strokeWidth="6" />
+      <circle
+        cx={size/2} cy={size/2} r={radius} fill="none"
+        stroke={color} strokeWidth="6" strokeLinecap="round"
+        strokeDasharray={circumference}
+        strokeDashoffset={strokeDashoffset}
+        className="transition-all duration-1000 ease-out"
       />
-      </div>
-    </div>
+    </svg>
   );
 }
 
-function formatUptime(seconds: number): string {
-  if (seconds <= 0) return "N/A";
-  const days = Math.floor(seconds / 86400);
-  const hours = Math.floor((seconds % 86400) / 3600);
-  return `${days}d ${hours}h`;
+function cpuColor(v: number): string {
+  if (v >= 90) return "#ef4444";
+  if (v >= 70) return "#f59e0b";
+  return "#22c55e";
+}
+
+function ramColor(v: number): string {
+  if (v >= 90) return "#ef4444";
+  if (v >= 70) return "#f59e0b";
+  return "#3b82f6";
+}
+
+function tempColor(v: number): string {
+  if (v >= 90) return "#ef4444";
+  if (v >= 75) return "#f59e0b";
+  if (v >= 60) return "#eab308";
+  return "#22c55e";
 }
 
 export default function ServerStatsWidget() {
-  const [servers, setServers] = useState<ServerStats[]>([]);
+  const [servers, setServers] = useState<ServerData[]>([]);
   const [loading, setLoading] = useState(true);
 
-  const fetchStats = async () => {
-    try {
-      const res = await fetch("/api/servers");
-      const data = await res.json();
-      if (Array.isArray(data)) setServers(data);
-    } catch (err) {
-      console.error("Failed to fetch server stats:", err);
-    } finally {
-      setLoading(false);
-    }
-  };
-
   useEffect(() => {
-    fetchStats();
-    const interval = setInterval(fetchStats, 15000);
+    fetchServers();
+    const interval = setInterval(fetchServers, 15000);
     return () => clearInterval(interval);
   }, []);
 
-  if (loading) {
-    return (
+  const fetchServers = async () => {
+    try {
+      const res = await fetch("/api/servers");
+      if (res.ok) {
+        const data = await res.json();
+        if (Array.isArray(data)) setServers(data);
+      }
+      setLoading(false);
+    } catch { setLoading(false); }
+  };
+
+  if (loading) return (
     <div className="bg-gray-800/40 backdrop-blur-sm rounded-lg border border-gray-700 p-6">
-        <div className="flex items-center gap-2 mb-4">
-          <Server className="w-5 h-5 text-blue-400" />
-          <h2 className="text-lg font-semibold text-white">Server Stats</h2>
-        </div>
-        <div className="flex items-center justify-center h-32">
+      <h3 className="text-lg font-semibold text-white flex items-center gap-2 mb-4">
+        <Server className="w-5 h-5 text-blue-500" /> Server Health
+      </h3>
+      <div className="flex justify-center py-8">
         <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-blue-500" />
       </div>
     </div>
   );
-  }
 
   return (
-    <div className="bg-gray-800/40 backdrop-blur-sm rounded-lg border border-gray-700 overflow-hidden">
-      <div className="px-6 py-4 border-b border-gray-700 bg-gray-800/60">
-        <h2 className="text-lg font-semibold text-white flex items-center gap-2">
-          <Server className="w-5 h-5 text-blue-400" />
-          Server Stats
-          <span className="ml-auto text-sm text-gray-400">
-            {servers.length} nodes
-          </span>
-        </h2>
-      </div>
-      <div className="grid grid-cols-1 md:grid-cols-3 gap-4 p-6">
-        {servers.map((server, idx) => (
-          <motion.div
-            key={server.name}
-            initial={{ opacity: 0, y: 20 }}
-            animate={{ opacity: 1, y: 0 }}
-            transition={{ delay: idx * 0.1 }}
-            className="bg-gray-900/50 rounded-lg border border-gray-700 p-4 hover:border-blue-500/50 transition-all duration-200"
-          >
+    <div className="bg-gray-800/40 backdrop-blur-sm rounded-lg border border-gray-700 p-6">
+      <h3 className="text-lg font-semibold text-white flex items-center gap-2 mb-6">
+        <Server className="w-5 h-5 text-blue-500" />
+        Server Health
+      </h3>
+
+      <div className="grid grid-cols-1 md:grid-cols-3 gap-6">
+        {servers.map((srv) => (
+          <div key={srv.name} className="bg-gray-900/50 rounded-xl p-4">
+            {/* Server name */}
             <div className="flex items-center justify-between mb-4">
               <div>
-                <h3 className="text-white font-medium">{server.name}</h3>
-                <p className="text-xs text-gray-400">{server.role}</p>
+                <h4 className="text-sm font-bold text-white">{srv.name}</h4>
+                <p className="text-xs text-gray-500">{srv.role}</p>
               </div>
-              <span className="text-xs text-gray-500 font-mono">
-                {server.ip}
-              </span>
-            </div>
-
-            <div className="space-y-3">
-              <StatBar
-                label="CPU"
-                value={server.cpu}
-                icon={<Cpu className="w-3 h-3" />}
-              />
-              <StatBar
-                label={`RAM (${server.memoryUsedGB}/${server.memoryTotalGB} GB)`}
-                value={server.memoryPercent}
-                icon={<Server className="w-3 h-3" />}
-              />
-              <StatBar
-                label="Disk"
-                value={server.diskPercent}
-                icon={<HardDrive className="w-3 h-3" />}
-              />
-
-              <div className="flex items-center justify-between text-xs pt-1 border-t border-gray-700/50">
-                <span className="text-gray-400 flex items-center gap-1">
+              <div className="text-right text-xs text-gray-500">
+                <div className="flex items-center gap-1">
                   <Clock className="w-3 h-3" />
-                  Uptime
-                </span>
-                <span className="text-gray-300 font-mono">
-                  {formatUptime(server.uptimeSeconds)}
+                  {formatUptime(srv.uptimeSeconds)}
+                </div>
+                <div>Load: {srv.load1}</div>
+              </div>
+            </div>
+
+            {/* 3 Gauges */}
+            <div className="flex items-center justify-around mb-3">
+              {/* CPU Gauge */}
+              <div className="relative flex flex-col items-center">
+                <div className="relative">
+                  <GaugeRing value={srv.cpu} max={100} color={cpuColor(srv.cpu)} />
+                  <div className="absolute inset-0 flex items-center justify-center">
+                    <span className="text-sm font-bold text-white">{Math.round(srv.cpu)}%</span>
+                  </div>
+                </div>
+                <span className="text-xs text-gray-400 mt-1 flex items-center gap-0.5">
+                  <Cpu className="w-3 h-3" /> CPU
                 </span>
               </div>
-              <div className="flex items-center justify-between text-xs">
-                <span className="text-gray-400">Load (1m)</span>
-                <span className="text-gray-300 font-mono">
-                  {server.load1}
+
+              {/* RAM Gauge */}
+              <div className="relative flex flex-col items-center">
+                <div className="relative">
+                  <GaugeRing value={srv.memoryPercent} max={100} color={ramColor(srv.memoryPercent)} />
+                  <div className="absolute inset-0 flex items-center justify-center">
+                    <span className="text-sm font-bold text-white">{Math.round(srv.memoryPercent)}%</span>
+                  </div>
+                </div>
+                <span className="text-xs text-gray-400 mt-1 flex items-center gap-0.5">
+                  <MemoryStick className="w-3 h-3" /> RAM
+                </span>
+              </div>
+
+              {/* Temp Gauge */}
+              <div className="relative flex flex-col items-center">
+                <div className="relative">
+                  <GaugeRing
+                    value={srv.cpuTemp ?? 0}
+                    max={110}
+                    color={srv.cpuTemp !== null ? tempColor(srv.cpuTemp) : "#4b5563"}
+                  />
+                  <div className="absolute inset-0 flex items-center justify-center">
+                    <span className="text-sm font-bold text-white">
+                      {srv.cpuTemp !== null ? `${srv.cpuTemp}°` : "—"}
                     </span>
                   </div>
                 </div>
-          </motion.div>
+                <span className="text-xs text-gray-400 mt-1 flex items-center gap-0.5">
+                  <Thermometer className="w-3 h-3" /> Temp
+                </span>
+              </div>
+            </div>
+
+            {/* Disk + Memory detail */}
+            <div className="space-y-2">
+              <div>
+                <div className="flex justify-between text-xs text-gray-400 mb-1">
+                  <span className="flex items-center gap-1"><HardDrive className="w-3 h-3" /> Disk</span>
+                  <span>{srv.diskPercent}%</span>
+                </div>
+                <div className="w-full bg-gray-700 rounded-full h-1.5 overflow-hidden">
+                  <div
+                    className={`h-full rounded-full transition-all ${
+                      srv.diskPercent > 90 ? "bg-red-500" : srv.diskPercent > 75 ? "bg-yellow-500" : "bg-emerald-500"
+                    }`}
+                    style={{ width: `${Math.min(srv.diskPercent, 100)}%` }}
+                  />
+                </div>
+              </div>
+              <div className="text-xs text-gray-500 text-center">
+                {srv.memoryUsedGB} / {srv.memoryTotalGB} GB RAM
+              </div>
+            </div>
+          </div>
         ))}
       </div>
     </div>

src/components/SynologyWidget.tsx

@@ -19,6 +19,7 @@ interface Disk {
   model: string;
   status: string;
   isSsd: boolean;
+  temp: number | null;
 }
 
 interface SynologyData {
@@ -27,11 +28,12 @@ interface SynologyData {
   utilization: { cpu: number | null; memory: number | null } | null;
 }
 
-function formatBytes(bytes: number): string {
-  if (bytes >= 1024 ** 4) return (bytes / (1024 ** 4)).toFixed(1) + " TB";
-  if (bytes >= 1024 ** 3) return (bytes / (1024 ** 3)).toFixed(1) + " GB";
-  if (bytes >= 1024 ** 2) return (bytes / (1024 ** 2)).toFixed(0) + " MB";
-  return (bytes / 1024).toFixed(0) + " KB";
+function formatTB(bytes: number): string {
+  return (bytes / (1024 ** 4)).toFixed(2) + " TB";
+}
+
+function formatTemp(t: number | null): string {
+  return t !== null ? `${t}°C` : "";
 }
 
 export default function SynologyWidget() {
@@ -50,22 +52,42 @@ export default function SynologyWidget() {
       const response = await fetch("/api/synology");
       if (response.ok) {
         const json = await response.json();
-        if (json.volumes) {
-          setData(json);
-          setError(false);
-        } else {
-          setError(true);
-        }
-      } else {
-        setError(true);
-      }
+        if (json.volumes) { setData(json); setError(false); }
+        else setError(true);
+      } else setError(true);
       setLoading(false);
-    } catch {
-      setError(true);
-      setLoading(false);
-    }
+    } catch { setError(true); setLoading(false); }
   };
 
+  if (loading) return (
+    <div className="bg-gray-800/40 backdrop-blur-sm rounded-lg border border-gray-700 p-6">
+      <h3 className="text-lg font-semibold text-white flex items-center gap-2 mb-4">
+        <HardDrive className="w-5 h-5 text-purple-500" /> Synology NAS
+      </h3>
+      <div className="flex justify-center py-8">
+        <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-purple-500" />
+      </div>
+    </div>
+  );
+
+  if (error || !data) return (
+    <div className="bg-gray-800/40 backdrop-blur-sm rounded-lg border border-gray-700 p-6">
+      <h3 className="text-lg font-semibold text-white flex items-center gap-2 mb-4">
+        <HardDrive className="w-5 h-5 text-purple-500" /> Synology NAS
+      </h3>
+      <div className="text-center py-8">
+        <HardDrive className="w-12 h-12 text-gray-600 mx-auto mb-2" />
+        <p className="text-sm text-gray-400">Configure Synology credentials in .env</p>
+      </div>
+    </div>
+  );
+
+  // Aggregate across volumes
+  const totalSize = data.volumes.reduce((s, v) => s + v.size, 0);
+  const totalUsed = data.volumes.reduce((s, v) => s + v.used, 0);
+  const totalAvail = totalSize - totalUsed;
+  const overallPct = totalSize > 0 ? (totalUsed / totalSize) * 100 : 0;
+
   return (
     <div className="bg-gray-800/40 backdrop-blur-sm rounded-lg border border-gray-700 p-6">
       <div className="flex items-center justify-between mb-4">
@@ -73,38 +95,38 @@ export default function SynologyWidget() {
           <HardDrive className="w-5 h-5 text-purple-500" />
           Synology NAS
         </h3>
-        {data?.utilization && (
+        {data.utilization && (
           <div className="flex items-center gap-3 text-xs text-gray-400">
             {data.utilization.cpu !== null && (
-              <span className="flex items-center gap-1">
-                <Cpu className="w-3 h-3" /> {data.utilization.cpu}%
-              </span>
+              <span className="flex items-center gap-1"><Cpu className="w-3 h-3" />{data.utilization.cpu}%</span>
             )}
             {data.utilization.memory !== null && (
-              <span className="flex items-center gap-1">
-                <MemoryStick className="w-3 h-3" /> {data.utilization.memory}%
-              </span>
+              <span className="flex items-center gap-1"><MemoryStick className="w-3 h-3" />{data.utilization.memory}%</span>
             )}
           </div>
         )}
       </div>
 
-      {loading ? (
-        <div className="flex justify-center py-8">
-          <div className="animate-spin rounded-full h-8 w-8 border-b-2 border-purple-500"></div>
+      {/* Big total/available stats */}
+      <div className="grid grid-cols-2 gap-3 mb-4">
+        <div className="bg-gray-900/50 rounded-lg p-3 text-center">
+          <div className="text-2xl font-bold text-white">{formatTB(totalSize)}</div>
+          <div className="text-xs text-gray-400">Total Space</div>
         </div>
-      ) : error || !data ? (
-        <div className="text-center py-8">
-          <HardDrive className="w-12 h-12 text-gray-600 mx-auto mb-2" />
-          <p className="text-sm text-gray-400">Configure Synology credentials in .env</p>
+        <div className="bg-gray-900/50 rounded-lg p-3 text-center">
+          <div className={`text-2xl font-bold ${overallPct > 90 ? "text-red-400" : overallPct > 75 ? "text-yellow-400" : "text-green-400"}`}>
+            {formatTB(totalAvail)}
           </div>
-      ) : (
-        <div className="space-y-3">
+          <div className="text-xs text-gray-400">Available</div>
+        </div>
+      </div>
+
+      {/* Usage bar per volume */}
       {data.volumes.map((vol) => {
         const pct = parseFloat(vol.percentUsed);
         return (
-              <div key={vol.id} className="bg-gray-900/50 rounded-lg p-3">
-                <div className="flex justify-between items-center mb-2">
+          <div key={vol.id} className="mb-3">
+            <div className="flex justify-between items-center mb-1">
               <span className="text-sm text-gray-300">{vol.id}</span>
               <span className={`text-xs px-1.5 py-0.5 rounded ${
                 vol.status === "normal" ? "bg-green-900/50 text-green-400" :
@@ -112,7 +134,7 @@ export default function SynologyWidget() {
                 "bg-red-900/50 text-red-400"
               }`}>{vol.status}</span>
             </div>
-                <div className="w-full bg-gray-700 rounded-full h-2 overflow-hidden mb-2">
+            <div className="w-full bg-gray-700 rounded-full h-2.5 overflow-hidden mb-1">
               <div
                 className={`h-full rounded-full transition-all ${
                   pct > 90 ? "bg-red-500" : pct > 75 ? "bg-yellow-500" : "bg-purple-500"
@@ -120,33 +142,33 @@ export default function SynologyWidget() {
                 style={{ width: `${Math.min(pct, 100)}%` }}
               />
             </div>
-                <div className="flex justify-between text-xs text-gray-400">
-                  <span>{formatBytes(vol.used)} / {formatBytes(vol.size)}</span>
+            <div className="flex justify-between text-xs text-gray-500">
+              <span>{formatTB(vol.used)} used / {formatTB(vol.size)}</span>
               <span>{vol.percentUsed}%</span>
             </div>
           </div>
         );
       })}
 
+      {/* Disk grid */}
       {data.disks.length > 0 && (
-            <div className="pt-2 border-t border-gray-700/50">
+        <div className="pt-3 border-t border-gray-700/50">
           <p className="text-xs text-gray-500 mb-2">{data.disks.length} drives</p>
-              <div className="grid grid-cols-2 gap-1">
-                {data.disks.slice(0, 8).map((disk, i) => (
-                  <div key={i} className="flex items-center gap-1 text-xs">
-                    <Disc className={`w-3 h-3 ${
+          <div className="grid grid-cols-3 gap-1">
+            {data.disks.map((disk, i) => (
+              <div key={i} className="flex items-center gap-1 text-xs py-0.5">
+                <Disc className={`w-3 h-3 flex-shrink-0 ${
                   disk.status === "normal" ? "text-green-400" : "text-yellow-400"
                 }`} />
-                    <span className="text-gray-400 truncate" title={disk.model}>
-                      {disk.name}
-                    </span>
+                <span className="text-gray-400 truncate">{disk.name}</span>
+                {disk.temp !== null && (
+                  <span className="text-gray-600 ml-auto">{disk.temp}°</span>
+                )}
               </div>
             ))}
           </div>
         </div>
       )}
     </div>
-      )}
-    </div>
   );
 }