diff --git a/config/runtime.exs b/config/runtime.exs
index 526614ae..9f03bc1b 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -23,10 +23,20 @@ end
 # DeepSeek LLM (used by Towerops.LLM.DeepSeek for insight enrichment).
 # DEEPSEEK_API_KEY is optional — when missing, enrichment is skipped and
 # insights still display without an LLM-generated summary.
+# Helper: treat empty-string env vars as missing (the DEEPSEEK_MODEL
+# secret ships as "" by default, which would otherwise bypass `||`).
+deepseek_env = fn name, fallback ->
+  case System.get_env(name) do
+    nil -> fallback
+    "" -> fallback
+    value -> value
+  end
+end
+
 config :towerops, Towerops.LLM.DeepSeek,
   api_key: System.get_env("DEEPSEEK_API_KEY"),
-  base_url: System.get_env("DEEPSEEK_BASE_URL") || "https://api.deepseek.com/v1",
-  model: System.get_env("DEEPSEEK_MODEL") || "deepseek-v4-pro"
+  base_url: deepseek_env.("DEEPSEEK_BASE_URL", "https://api.deepseek.com/v1"),
+  model: deepseek_env.("DEEPSEEK_MODEL", "deepseek-v4-pro")
 
 config :towerops, ToweropsWeb.Endpoint, http: [port: String.to_integer(System.get_env("PORT", "4000"))]
 
diff --git a/lib/towerops/llm/deepseek.ex b/lib/towerops/llm/deepseek.ex
index af63b1df..f5119b30 100644
--- a/lib/towerops/llm/deepseek.ex
+++ b/lib/towerops/llm/deepseek.ex
@@ -20,8 +20,8 @@ defmodule Towerops.LLM.DeepSeek do
   def complete(messages, opts \\ []) do
     cfg = Application.get_env(:towerops, __MODULE__, [])
     api_key = opts[:api_key] || cfg[:api_key]
-    base_url = opts[:base_url] || cfg[:base_url] || @default_base_url
-    model = opts[:model] || cfg[:model] || @default_model
+    base_url = present(opts[:base_url]) || present(cfg[:base_url]) || @default_base_url
+    model = present(opts[:model]) || present(cfg[:model]) || @default_model
 
     if blank?(api_key) do
       {:error, :missing_api_key}
@@ -34,6 +34,13 @@ defmodule Towerops.LLM.DeepSeek do
   defp blank?(""), do: true
   defp blank?(s) when is_binary(s), do: String.trim(s) == ""
 
+  # Returns the value if non-empty, nil otherwise — lets `||` cascade past
+  # blank env-var values (a `""` env var would otherwise short-circuit
+  # `present(opts[:x]) || present(cfg[:x]) || @default_x`).
+  defp present(nil), do: nil
+  defp present(s) when is_binary(s), do: if(String.trim(s) == "", do: nil, else: s)
+  defp present(other), do: other
+
   defp request(base_url, api_key, model, messages, opts) do
     body = %{
       model: model,
diff --git a/lib/towerops_web/live/insights_live/index.html.heex b/lib/towerops_web/live/insights_live/index.html.heex
index e067d1bd..56330be7 100644
--- a/lib/towerops_web/live/insights_live/index.html.heex
+++ b/lib/towerops_web/live/insights_live/index.html.heex
@@ -136,7 +136,7 @@
       id="bulk-actions"
       class="mt-4 flex items-center gap-3 rounded-lg bg-indigo-50 px-4 py-3 dark:bg-indigo-900/20"
     >
-      <span class="text-sm font-medium text-indigo-700 dark:text-indigo-300">
+      <span class="text-sm font-medium text-indigo-700 dark:text-indigo-200">
         {MapSet.size(@selected_ids)} selected
       </span>
       <button
@@ -354,7 +354,7 @@
 
                 <%= if insight.source == "gaiia" && insight.metadata["finding_type"] == "ghost" do %>
                   <div class="mt-3 rounded-md border border-amber-200 bg-amber-50 p-3 dark:border-amber-800 dark:bg-amber-900/20">
-                    <p class="text-xs font-medium text-amber-800 dark:text-amber-300 mb-2">
+                    <p class="text-xs font-medium text-amber-800 dark:text-amber-200 mb-2">
                       <.icon name="hero-light-bulb" class="h-3.5 w-3.5 inline" />
                       {t("To fix this:")}
                     </p>
@@ -396,7 +396,7 @@
                   <div class="mt-3 rounded-md border border-orange-200 bg-orange-50 p-3 dark:border-orange-800 dark:bg-orange-900/20">
                     <div class="flex flex-wrap items-center gap-4 text-sm">
                       <div class="flex flex-col">
-                        <span class="text-xs text-orange-700 dark:text-orange-300">
+                        <span class="text-xs text-orange-700 dark:text-orange-200">
                           {t("Free airtime")}
                         </span>
                         <span class="font-mono text-base font-semibold text-orange-900 dark:text-orange-100">
@@ -404,7 +404,7 @@
                         </span>
                       </div>
                       <div class="flex flex-col">
-                        <span class="text-xs text-orange-700 dark:text-orange-300">
+                        <span class="text-xs text-orange-700 dark:text-orange-200">
                           {t("Subscribers")}
                         </span>
                         <span class="font-mono text-base font-semibold text-orange-900 dark:text-orange-100">
@@ -413,7 +413,7 @@
                       </div>
                       <%= if insight.metadata["qoe_score"] do %>
                         <div class="flex flex-col">
-                          <span class="text-xs text-orange-700 dark:text-orange-300">
+                          <span class="text-xs text-orange-700 dark:text-orange-200">
                             {t("QoE score")}
                           </span>
                           <span class="font-mono text-base font-semibold text-orange-900 dark:text-orange-100">
@@ -422,7 +422,7 @@
                         </div>
                       <% end %>
                       <%= if insight.metadata["ap_model"] do %>
-                        <span class="ml-auto text-xs text-orange-700 dark:text-orange-300">
+                        <span class="ml-auto text-xs text-orange-700 dark:text-orange-200">
                           {insight.metadata["ap_model"]}
                           {insight.metadata["ap_firmware"] &&
                             "(" <> insight.metadata["ap_firmware"] <> ")"}
@@ -436,7 +436,7 @@
                   <div class="mt-3 rounded-md border border-rose-200 bg-rose-50 p-3 dark:border-rose-800 dark:bg-rose-900/20">
                     <div class="flex flex-wrap items-center gap-4 text-sm">
                       <div class="flex flex-col">
-                        <span class="text-xs text-rose-700 dark:text-rose-300">
+                        <span class="text-xs text-rose-700 dark:text-rose-200">
                           {t("Signal")}
                         </span>
                         <span class="font-mono text-base font-semibold text-rose-900 dark:text-rose-100">
@@ -444,7 +444,7 @@
                         </span>
                       </div>
                       <div class="flex flex-col">
-                        <span class="text-xs text-rose-700 dark:text-rose-300">
+                        <span class="text-xs text-rose-700 dark:text-rose-200">
                           {t("SNR")}
                         </span>
                         <span class="font-mono text-base font-semibold text-rose-900 dark:text-rose-100">
@@ -453,7 +453,7 @@
                       </div>
                       <%= if insight.metadata["tx_rate"] && insight.metadata["rx_rate"] do %>
                         <div class="flex flex-col">
-                          <span class="text-xs text-rose-700 dark:text-rose-300">
+                          <span class="text-xs text-rose-700 dark:text-rose-200">
                             {t("TX/RX rate")}
                           </span>
                           <span class="font-mono text-base font-semibold text-rose-900 dark:text-rose-100">
@@ -463,7 +463,7 @@
                       <% end %>
                       <%= if insight.metadata["distance_m"] do %>
                         <div class="flex flex-col">
-                          <span class="text-xs text-rose-700 dark:text-rose-300">
+                          <span class="text-xs text-rose-700 dark:text-rose-200">
                             {t("Distance")}
                           </span>
                           <span class="font-mono text-base font-semibold text-rose-900 dark:text-rose-100">
@@ -472,7 +472,7 @@
                         </div>
                       <% end %>
                       <%= if insight.metadata["cpe_hostname"] do %>
-                        <span class="ml-auto text-xs text-rose-700 dark:text-rose-300">
+                        <span class="ml-auto text-xs text-rose-700 dark:text-rose-200">
                           {insight.metadata["cpe_hostname"]}
                         </span>
                       <% end %>
@@ -484,7 +484,7 @@
                   <div class="mt-3 rounded-md border border-cyan-200 bg-cyan-50 p-3 dark:border-cyan-800 dark:bg-cyan-900/20">
                     <div class="flex flex-wrap items-center gap-4 text-sm">
                       <div class="flex flex-col">
-                        <span class="text-xs text-cyan-700 dark:text-cyan-300">
+                        <span class="text-xs text-cyan-700 dark:text-cyan-200">
                           {t("Port")}
                         </span>
                         <span class="font-mono text-base font-semibold text-cyan-900 dark:text-cyan-100">
@@ -492,7 +492,7 @@
                         </span>
                       </div>
                       <div class="flex flex-col">
-                        <span class="text-xs text-cyan-700 dark:text-cyan-300">
+                        <span class="text-xs text-cyan-700 dark:text-cyan-200">
                           {t("Rx power")}
                         </span>
                         <span class="font-mono text-base font-semibold text-cyan-900 dark:text-cyan-100">
@@ -501,7 +501,7 @@
                       </div>
                       <%= if insight.metadata["tx_power_dbm"] do %>
                         <div class="flex flex-col">
-                          <span class="text-xs text-cyan-700 dark:text-cyan-300">
+                          <span class="text-xs text-cyan-700 dark:text-cyan-200">
                             {t("Tx power")}
                           </span>
                           <span class="font-mono text-base font-semibold text-cyan-900 dark:text-cyan-100">
@@ -510,7 +510,7 @@
                         </div>
                       <% end %>
                       <%= if insight.metadata["transceiver_type"] do %>
-                        <span class="ml-auto text-xs text-cyan-700 dark:text-cyan-300">
+                        <span class="ml-auto text-xs text-cyan-700 dark:text-cyan-200">
                           {insight.metadata["transceiver_type"]}
                           <%= if insight.metadata["wavelength_nm"] do %>
                             · {insight.metadata["wavelength_nm"]} nm
@@ -522,38 +522,41 @@
                 <% end %>
 
                 <%= if insight.type == "upstream_degradation" do %>
-                  <div class="mt-3 rounded-md border border-indigo-200 bg-indigo-50 p-3 dark:border-indigo-800 dark:bg-indigo-900/20">
+                  <div class="mt-3 rounded-md border border-indigo-200 bg-indigo-50 p-3 dark:border-indigo-700 dark:bg-indigo-950/40">
                     <div class="flex flex-wrap items-center gap-4 text-sm">
                       <div class="flex flex-col">
-                        <span class="text-xs text-indigo-700 dark:text-indigo-300">
+                        <span class="text-xs font-medium text-indigo-700 dark:text-indigo-200">
                           {t("Degraded APs")}
                         </span>
-                        <span class="font-mono text-base font-semibold text-indigo-900 dark:text-indigo-100">
+                        <span class="font-mono text-base font-semibold text-indigo-900 dark:text-white">
                           {insight.metadata["degraded_ap_count"]} / {insight.metadata[
                             "total_ap_count"
                           ]}
                         </span>
                       </div>
-                      <span class="ml-auto rounded-md bg-indigo-200 px-2 py-1 text-xs font-medium text-indigo-900 dark:bg-indigo-800 dark:text-indigo-100">
+                      <span class="ml-auto rounded-md bg-indigo-600 px-2 py-1 text-xs font-semibold text-white dark:bg-indigo-500">
                         {t("Investigate upstream first")}
                       </span>
                     </div>
                     <%= if is_list(insight.metadata["degraded_aps"]) do %>
-                      <ul class="mt-2 space-y-1 text-xs text-indigo-900 dark:text-indigo-100">
+                      <ul class="mt-2 space-y-1 text-xs text-indigo-900 dark:text-indigo-50">
                         <li
                           :for={ap <- insight.metadata["degraded_aps"]}
                           class="flex items-center justify-between gap-2"
                         >
                           <span class="truncate">
                             <%= if ap["device_id"] do %>
-                              <.link navigate={~p"/devices/#{ap["device_id"]}"} class="underline">
+                              <.link
+                                navigate={~p"/devices/#{ap["device_id"]}"}
+                                class="text-indigo-700 underline hover:text-indigo-900 dark:text-indigo-200 dark:hover:text-white"
+                              >
                                 {ap["name"] || "Unnamed"}
                               </.link>
                             <% else %>
                               {ap["name"] || "Unnamed"}
                             <% end %>
                           </span>
-                          <span class="font-mono text-indigo-700 dark:text-indigo-300">
+                          <span class="font-mono text-indigo-800 dark:text-indigo-100">
                             QoE {Float.round(ap["qoe_score"] / 1.0, 1)}
                           </span>
                         </li>
@@ -566,21 +569,21 @@
                   <div class="mt-3 rounded-md border border-red-200 bg-red-50 p-3 dark:border-red-800 dark:bg-red-900/20">
                     <div class="flex flex-wrap items-center gap-4 text-sm">
                       <div class="flex flex-col">
-                        <span class="text-xs text-red-700 dark:text-red-300">
+                        <span class="text-xs text-red-700 dark:text-red-200">
                           {t("Hottest sensor")}
                         </span>
                         <span class="font-mono text-base font-semibold text-red-900 dark:text-red-100">
                           {insight.metadata["temperature_c"]} °C
                         </span>
                         <%= if insight.metadata["sensor_descr"] do %>
-                          <span class="text-xs text-red-700 dark:text-red-300">
+                          <span class="text-xs text-red-700 dark:text-red-200">
                             {insight.metadata["sensor_descr"]}
                           </span>
                         <% end %>
                       </div>
                       <%= if insight.metadata["qoe_score"] do %>
                         <div class="flex flex-col">
-                          <span class="text-xs text-red-700 dark:text-red-300">
+                          <span class="text-xs text-red-700 dark:text-red-200">
                             {t("Linked QoE")}
                           </span>
                           <span class="font-mono text-base font-semibold text-red-900 dark:text-red-100">
@@ -589,7 +592,7 @@
                         </div>
                       <% end %>
                       <%= if is_number(insight.metadata["temperature_c"]) and insight.metadata["temperature_c"] >= 75 do %>
-                        <span class="ml-auto rounded-md bg-red-200 px-2 py-1 text-xs font-medium text-red-900 dark:bg-red-800 dark:text-red-100">
+                        <span class="ml-auto rounded-md bg-red-600 px-2 py-1 text-xs font-semibold text-white dark:bg-red-500">
                           {t("Above manufacturer spec")}
                         </span>
                       <% end %>
@@ -601,20 +604,20 @@
                   <div class="mt-3 rounded-md border border-amber-200 bg-amber-50 p-3 dark:border-amber-800 dark:bg-amber-900/20">
                     <div class="flex items-center gap-3 text-sm">
                       <div class="flex flex-col">
-                        <span class="text-xs text-amber-700 dark:text-amber-300">
+                        <span class="text-xs text-amber-700 dark:text-amber-200">
                           {t("Channel")}
                         </span>
                         <span class="font-mono text-base font-semibold text-amber-900 dark:text-amber-100">
                           {insight.metadata["channel"]}
                           <%= if insight.metadata["frequency_mhz"] do %>
-                            <span class="text-xs font-normal text-amber-700 dark:text-amber-300">
+                            <span class="text-xs font-normal text-amber-700 dark:text-amber-200">
                               ({insight.metadata["frequency_mhz"]} MHz)
                             </span>
                           <% end %>
                         </span>
                       </div>
                       <div class="flex flex-col">
-                        <span class="text-xs text-amber-700 dark:text-amber-300">
+                        <span class="text-xs text-amber-700 dark:text-amber-200">
                           {t("APs sharing")}
                         </span>
                         <span class="font-mono text-base font-semibold text-amber-900 dark:text-amber-100">
@@ -629,11 +632,11 @@
                     </div>
                     <%= if is_list(insight.metadata["aps"]) and insight.metadata["aps"] != [] do %>
                       <div class="mt-3 overflow-x-auto">
-                        <p class="text-xs font-medium text-amber-800 dark:text-amber-300">
+                        <p class="text-xs font-medium text-amber-800 dark:text-amber-200">
                           {t("Conflicting APs")}
                         </p>
                         <table class="mt-1 w-full text-left text-xs text-amber-900 dark:text-amber-100">
-                          <thead class="text-[11px] font-medium text-amber-700 dark:text-amber-300">
+                          <thead class="text-[11px] font-medium text-amber-700 dark:text-amber-200">
                             <tr>
                               <th class="py-1 pr-3">{t("AP")}</th>
                               <th class="py-1 pr-3">{t("Width")}</th>
@@ -660,7 +663,7 @@
                                   {ap["name"] || "Unnamed"}
                                 <% end %>
                                 <%= if ap["rf_severity"] == "critical" do %>
-                                  <span class="ml-1 rounded bg-red-200 px-1 py-0.5 text-[10px] font-medium text-red-900 dark:bg-red-800 dark:text-red-100">
+                                  <span class="ml-1 rounded bg-red-600 px-1 py-0.5 text-[10px] font-semibold text-white dark:bg-red-500">
                                     crit
                                   </span>
                                 <% end %>
@@ -691,7 +694,7 @@
                   <div class="mt-3 rounded-md border border-purple-200 bg-purple-50 p-3 dark:border-purple-800 dark:bg-purple-900/20">
                     <div class="flex items-center gap-3 text-sm">
                       <div class="flex flex-col">
-                        <span class="text-xs text-purple-700 dark:text-purple-300">
+                        <span class="text-xs text-purple-700 dark:text-purple-200">
                           {t("Current channel")}
                         </span>
                         <span class="font-mono text-base font-semibold text-purple-900 dark:text-purple-100">
@@ -703,7 +706,7 @@
                         class="h-4 w-4 text-purple-500 dark:text-purple-400"
                       />
                       <div class="flex flex-col">
-                        <span class="text-xs text-purple-700 dark:text-purple-300">
+                        <span class="text-xs text-purple-700 dark:text-purple-200">
                           {t("Recommended")}
                         </span>
                         <span class="font-mono text-base font-semibold text-purple-900 dark:text-purple-100">
@@ -719,7 +722,7 @@
 
                     <%= if insight.metadata["top_offenders"] && insight.metadata["top_offenders"] != [] do %>
                       <div class="mt-3">
-                        <p class="text-xs font-medium text-purple-800 dark:text-purple-300">
+                        <p class="text-xs font-medium text-purple-800 dark:text-purple-200">
                           {t("Top interferers on current channel")}
                         </p>
                         <ul class="mt-1 space-y-1">
@@ -730,17 +733,17 @@
                             <span class="flex items-center gap-2 truncate">
                               <span class="font-mono">{offender["bssid"]}</span>
                               <%= if offender["ssid"] do %>
-                                <span class="truncate text-purple-700 dark:text-purple-300">
+                                <span class="truncate text-purple-700 dark:text-purple-200">
                                   {offender["ssid"]}
                                 </span>
                               <% end %>
                               <%= if offender["is_own_fleet"] do %>
-                                <span class="rounded bg-purple-200 px-1.5 py-0.5 text-[10px] font-medium text-purple-900 dark:bg-purple-800 dark:text-purple-100">
+                                <span class="rounded bg-purple-600 px-1.5 py-0.5 text-[10px] font-semibold text-white dark:bg-purple-500">
                                   own fleet
                                 </span>
                               <% end %>
                             </span>
-                            <span class="font-mono text-purple-700 dark:text-purple-300">
+                            <span class="font-mono text-purple-700 dark:text-purple-200">
                               {offender["rssi_dbm"]} dBm
                             </span>
                           </li>