diff --git a/custom_components/houseplan/const.py b/custom_components/houseplan/const.py
index 395972d..8f9a9d6 100755
--- a/custom_components/houseplan/const.py
+++ b/custom_components/houseplan/const.py
@@ -11,7 +11,7 @@ PLANS_DIR = "houseplan/plans"  # relative to the HA configuration directory
 FILES_URL = "/houseplan_files/files"
 FILES_DIR = "houseplan/files"
 CONF_ADMIN_ONLY = "admin_only"
-VERSION = "1.36.3"
+VERSION = "1.36.4"
 
 DEFAULT_CONFIG: dict = {
     "spaces": [],
diff --git a/custom_components/houseplan/frontend/houseplan-card.js b/custom_components/houseplan/frontend/houseplan-card.js
index 81ff091..dd59489 100755
--- a/custom_components/houseplan/frontend/houseplan-card.js
+++ b/custom_components/houseplan/frontend/houseplan-card.js
@@ -1452,7 +1452,7 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
         ${r.map((t,e)=>j`
           <radialGradient id="hp-glow-${e}">
             <stop offset="0%" stop-color="${t.c}" stop-opacity="${t.alpha.toFixed(3)}"></stop>
-            <stop offset="55%" stop-color="${t.c}" stop-opacity="${(.45*t.alpha).toFixed(3)}"></stop>
+            <stop offset="80%" stop-color="${t.c}" stop-opacity="${t.alpha.toFixed(3)}"></stop>
             <stop offset="100%" stop-color="${t.c}" stop-opacity="0"></stop>
           </radialGradient>
           ${t.clip?j`<clipPath id="hp-glowclip-${e}">${t.clip.map(t=>j`<path d="${t}"></path>`)}</clipPath>`:W}`)}
@@ -2195,4 +2195,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
           </button>
         </div>
       </div>
-    </div>`}}ji.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ji.styles=$i,customElements.get("houseplan-card")||customElements.define("houseplan-card",ji),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.36.3 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}ji.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ji.styles=$i,customElements.get("houseplan-card")||customElements.define("houseplan-card",ji),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.36.4 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/custom_components/houseplan/manifest.json b/custom_components/houseplan/manifest.json
index 56e00c5..bfdfaef 100755
--- a/custom_components/houseplan/manifest.json
+++ b/custom_components/houseplan/manifest.json
@@ -16,5 +16,5 @@
   "issue_tracker": "https://github.com/Matysh/houseplan-card/issues",
   "requirements": [],
   "single_config_entry": true,
-  "version": "1.36.3"
+  "version": "1.36.4"
 }
diff --git a/demo/smoke_glow.mjs b/demo/smoke_glow.mjs
index f7f12d3..121859d 100644
--- a/demo/smoke_glow.mjs
+++ b/demo/smoke_glow.mjs
@@ -77,6 +77,11 @@ const res = await page.evaluate(async () => {
   c.requestUpdate(); await c.updateComplete;
   const clipEls2 = [...sr().querySelectorAll('defs clipPath[id^="hp-glowclip"]')];
   out.entranceNoSector = clipEls2.every((cp) => cp.querySelectorAll('path').length === 1);
+  // 6б) профиль градиента: плато до 80%, спад на внешних 20%
+  const stops = [...sr().querySelectorAll('defs radialGradient')][0];
+  const offs = stops ? [...stops.querySelectorAll('stop')].map((st2) => [st2.getAttribute('offset'), st2.getAttribute('stop-opacity')]) : [];
+  out.plateau80 = offs.length === 3 && offs[0][0] === '0%' && offs[1][0] === '80%'
+    && offs[0][1] === offs[1][1] && offs[2][1] === '0';
   // 7а) персональный радиус источника перекрывает глобальный
   const litMarkerId = litLight.id;
   c._serverCfg = { ...c._serverCfg, markers: [
diff --git a/demo/srv/assets/houseplan-card.js b/demo/srv/assets/houseplan-card.js
index 81ff091..dd59489 100755
--- a/demo/srv/assets/houseplan-card.js
+++ b/demo/srv/assets/houseplan-card.js
@@ -1452,7 +1452,7 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
         ${r.map((t,e)=>j`
           <radialGradient id="hp-glow-${e}">
             <stop offset="0%" stop-color="${t.c}" stop-opacity="${t.alpha.toFixed(3)}"></stop>
-            <stop offset="55%" stop-color="${t.c}" stop-opacity="${(.45*t.alpha).toFixed(3)}"></stop>
+            <stop offset="80%" stop-color="${t.c}" stop-opacity="${t.alpha.toFixed(3)}"></stop>
             <stop offset="100%" stop-color="${t.c}" stop-opacity="0"></stop>
           </radialGradient>
           ${t.clip?j`<clipPath id="hp-glowclip-${e}">${t.clip.map(t=>j`<path d="${t}"></path>`)}</clipPath>`:W}`)}
@@ -2195,4 +2195,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
           </button>
         </div>
       </div>
-    </div>`}}ji.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ji.styles=$i,customElements.get("houseplan-card")||customElements.define("houseplan-card",ji),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.36.3 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}ji.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ji.styles=$i,customElements.get("houseplan-card")||customElements.define("houseplan-card",ji),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.36.4 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/dist/houseplan-card.js b/dist/houseplan-card.js
index 81ff091..dd59489 100755
--- a/dist/houseplan-card.js
+++ b/dist/houseplan-card.js
@@ -1452,7 +1452,7 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
         ${r.map((t,e)=>j`
           <radialGradient id="hp-glow-${e}">
             <stop offset="0%" stop-color="${t.c}" stop-opacity="${t.alpha.toFixed(3)}"></stop>
-            <stop offset="55%" stop-color="${t.c}" stop-opacity="${(.45*t.alpha).toFixed(3)}"></stop>
+            <stop offset="80%" stop-color="${t.c}" stop-opacity="${t.alpha.toFixed(3)}"></stop>
             <stop offset="100%" stop-color="${t.c}" stop-opacity="0"></stop>
           </radialGradient>
           ${t.clip?j`<clipPath id="hp-glowclip-${e}">${t.clip.map(t=>j`<path d="${t}"></path>`)}</clipPath>`:W}`)}
@@ -2195,4 +2195,4 @@ const t=globalThis,e=t.ShadowRoot&&(void 0===t.ShadyCSS||t.ShadyCSS.nativeShadow
           </button>
         </div>
       </div>
-    </div>`}}ji.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ji.styles=$i,customElements.get("houseplan-card")||customElements.define("houseplan-card",ji),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.36.3 ","background:#3ea6ff;color:#04121f;font-weight:700","");
+    </div>`}}ji.properties={hass:{attribute:!1},_config:{state:!0},_space:{state:!0},_layout:{state:!0},_devices:{state:!0},_tip:{state:!0},_selId:{state:!0},_toast:{state:!0},_serverCfg:{state:!0},_mode:{state:!0},_tool:{state:!0},_path:{state:!0},_cursorPt:{state:!0},_mergeSel:{state:!0},_openingDialog:{state:!0},_openingInfo:{state:!0},_mergeDialog:{state:!0},_splitSel:{state:!0},_decorTool:{state:!0},_decorStyle:{state:!0},_decorDraft:{state:!0},_decorSel:{state:!0},_decorTextDialog:{state:!0},_areaSel:{state:!0},_nameSel:{state:!0},_roomDialog:{state:!0},_spaceDialog:{state:!0},_infoCard:{state:!0},_rulesDialog:{state:!0},_settingsDialog:{state:!0},_importDialog:{state:!0},_markerDialog:{state:!0},_zoom:{state:!0},_view:{state:!0}},ji.styles=$i,customElements.get("houseplan-card")||customElements.define("houseplan-card",ji),window.customCards=window.customCards||[],window.customCards.find(t=>"houseplan-card"===t.type)||window.customCards.push({type:"houseplan-card",name:"House Plan Card",description:"Interactive house plan: spaces, rooms and devices with live states and drag layout."}),console.info("%c HOUSEPLAN-CARD %c v1.36.4 ","background:#3ea6ff;color:#04121f;font-weight:700","");
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 12ca20d..94a6ba1 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v1.36.4 — 2026-07-23
+- Glow: sharper light edge — the pool is fully lit for the inner 80% of the
+  radius, the gradient falloff lives only in the outer 20%.
+
 ## v1.36.3 — 2026-07-23
 - Glow: fixed dark wedges appearing INSIDE a lit room near some doorways.
   The room outline and the door sectors were subpaths of a single clip path;
diff --git a/package.json b/package.json
index 749ab56..e899294 100755
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "houseplan-card",
-  "version": "1.36.3",
+  "version": "1.36.4",
   "description": "Interactive house plan Lovelace card for Home Assistant",
   "license": "MIT",
   "type": "module",
diff --git a/src/houseplan-card.ts b/src/houseplan-card.ts
index e3c87ce..c1a0734 100755
--- a/src/houseplan-card.ts
+++ b/src/houseplan-card.ts
@@ -32,7 +32,7 @@ import './space-card';
 import { cardStyles } from './styles';
 import { langOf, t, type I18nKey } from './i18n';
 
-const CARD_VERSION = '1.36.3';
+const CARD_VERSION = '1.36.4';
 const LS_KEY = 'houseplan_card_layout_v1';
 const LS_CFG = 'houseplan_card_cfg_v1'; // cache of the server config+layout for instant rendering
 const LS_ZOOM = 'houseplan_card_zoom_v1';
@@ -2726,7 +2726,7 @@ class HouseplanCard extends LitElement {
         ${spots.map((sp, i) => svg`
           <radialGradient id="hp-glow-${i}">
             <stop offset="0%" stop-color="${sp.c}" stop-opacity="${sp.alpha.toFixed(3)}"></stop>
-            <stop offset="55%" stop-color="${sp.c}" stop-opacity="${(sp.alpha * 0.45).toFixed(3)}"></stop>
+            <stop offset="80%" stop-color="${sp.c}" stop-opacity="${sp.alpha.toFixed(3)}"></stop>
             <stop offset="100%" stop-color="${sp.c}" stop-opacity="0"></stop>
           </radialGradient>
           ${sp.clip ? svg`<clipPath id="hp-glowclip-${i}">${sp.clip.map((d) => svg`<path d="${d}"></path>`)}</clipPath>` : nothing}`)}