diff --git a/src/App.js b/src/App.js
index b52ada3..38c4aca 100644
--- a/src/App.js
+++ b/src/App.js
@@ -1,5 +1,6 @@
 import { BrowserRouter, Routes, Route, Navigate } from 'react-router-dom';
 import { AuthProvider } from './context/AuthContext';
+import { ThemeProvider } from './context/ThemeContext';
 import RegisterPage from './components/Authentication';
 import MainFeed from './components/MainFeed';
 import ChatPage from './components/ChatPage';
@@ -9,6 +10,7 @@ import './styles/chat.css';
 
 function App() {
   return (
+      <ThemeProvider>
       <AuthProvider>
         <BrowserRouter>
           <Routes>
@@ -21,8 +23,9 @@ function App() {
             <Route path="/chats/:chatId" element={<ChatPage />} />
           </Routes>
         </BrowserRouter>
-      </AuthProvider>
-  );
-}
-
-export default App;
+        </AuthProvider>
+      </ThemeProvider>
+    );
+  }
+  
+  export default App;
diff --git a/src/components/Sidebar.jsx b/src/components/Sidebar.jsx
index 0b1135d..888a5ea 100644
--- a/src/components/Sidebar.jsx
+++ b/src/components/Sidebar.jsx
@@ -2,6 +2,7 @@ import LogoIcon from "./icons/LogoIcon";
 import {NAV_BOTTOM, NAV_ITEMS} from "../config/feedConstants";
 import {NavIcons} from "./icons/NavIcons";
 import { useNavigate } from "react-router-dom";
+import { useTheme } from "../context/ThemeContext";
 
 export default function Sidebar({
   open,
@@ -14,6 +15,7 @@ export default function Sidebar({
   onReviewsClick,
 }) {
   const navigate = useNavigate();
+  const { theme, toggle: toggleTheme } = useTheme();
   return (
       <>
         <div className={`f-overlay${open ? " show" : ""}`} onClick={onClose} />
@@ -78,6 +80,20 @@ export default function Sidebar({
                   </div>
               );
             })}
+            <div className="f-sb-divider" />
+            <div className="f-sb-item f-sb-theme-toggle" onClick={toggleTheme}>
+              {theme === "dark" ? (
+                <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                  <circle cx="12" cy="12" r="5"/>
+                  <path d="M12 1v2M12 21v2M4.22 4.22l1.42 1.42M18.36 18.36l1.42 1.42M1 12h2M21 12h2M4.22 19.78l1.42-1.42M18.36 5.64l1.42-1.42"/>
+                </svg>
+              ) : (
+                <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round">
+                  <path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"/>
+                </svg>
+              )}
+              {theme === "dark" ? "Светлая тема" : "Тёмная тема"}
+            </div>
           </div>
         </div>
       </>
diff --git a/src/components/icons/MenuIcon.jsx b/src/components/icons/MenuIcon.jsx
index eb14c96..ef4c123 100644
--- a/src/components/icons/MenuIcon.jsx
+++ b/src/components/icons/MenuIcon.jsx
@@ -1,6 +1,6 @@
 export default function MenuIcon () {
   return (
-      <svg width={20} height={20} viewBox="0 0 24 24" fill="none" stroke="rgba(255,255,255,0.8)" strokeWidth={2.2} strokeLinecap="round">
+      <svg width={20} height={20} viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth={2.2} strokeLinecap="round" opacity="0.8">
         <line x1="3" y1="6" x2="21" y2="6" />
         <line x1="3" y1="12" x2="21" y2="12" />
         <line x1="3" y1="18" x2="21" y2="18" />
diff --git a/src/styles/base.css b/src/styles/base.css
index dadd043..6c91fa6 100644
--- a/src/styles/base.css
+++ b/src/styles/base.css
@@ -4,12 +4,45 @@
 
 :root {
   --teal: #2de0c8;
+  --teal-rgb: 45, 224, 200;
   --teal2: #1fc9b0;
   --border: rgba(255,255,255,0.09);
   --muted: rgba(255,255,255,0.38);
   --muted2: rgba(255,255,255,0.15);
   --font: 'Nunito', sans-serif;
   --err: #ff6b6b;
+
+  --bg-app: linear-gradient(135deg, #1a2340 0%, #0d1018 100%);
+  --bg-card: linear-gradient(155deg, #1d2436, #131720);
+  --bg-surface: rgba(13,16,24,.7);
+  --bg-surface-solid: #131720;
+  --bg-filter: rgba(13,16,24,.4);
+  --bg-card-img: linear-gradient(135deg, #1a3a4a 0%, #0f2235 100%);
+  --bg-input: rgba(255,255,255,.055);
+  --bg-overlay: rgba(0,0,0,.65);
+  --text-primary: #fff;
+  --hover-bg: rgba(255,255,255,.08);
+}
+
+[data-theme="light"] {
+  --teal: #1a9e8a;
+  --teal-rgb: 26, 158, 138;
+  --teal2: #148d7a;
+  --border: rgba(0,0,0,0.1);
+  --muted: rgba(0,0,0,0.45);
+  --muted2: rgba(0,0,0,0.18);
+  --err: #d32f2f;
+
+  --bg-app: linear-gradient(135deg, #f0f2f5 0%, #e2e6ed 100%);
+  --bg-card: #ffffff;
+  --bg-surface: rgba(255,255,255,.8);
+  --bg-surface-solid: #ffffff;
+  --bg-filter: rgba(255,255,255,.6);
+  --bg-card-img: linear-gradient(135deg, #e8ecf2 0%, #d6dce6 100%);
+  --bg-input: rgba(0,0,0,.04);
+  --bg-overlay: rgba(0,0,0,.35);
+  --text-primary: #111;
+  --hover-bg: rgba(0,0,0,.06);
 }
 
 @keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }
diff --git a/src/styles/card.css b/src/styles/card.css
index 640f013..d46ca17 100644
--- a/src/styles/card.css
+++ b/src/styles/card.css
@@ -1,11 +1,11 @@
 /* ── Ad Card ── */
 .f-card {
   flex-shrink: 0;
-  background: linear-gradient(155deg, #1d2436, #131720);
+  background: var(--bg-card);
   border: 1px solid var(--border); border-radius: 20px; overflow: hidden;
-  transition: border-color .2s, transform .2s; cursor: pointer;
+  transition: border-color .2s, transform .2s, background .2s; cursor: pointer;
 }
-.f-card:hover { border-color: rgba(45,224,200,.3); transform: translateY(-2px); }
+.f-card:hover { border-color: rgba(var(--teal-rgb), .3); transform: translateY(-2px); }
 
 .f-card-inner {
   display: flex; flex-direction: row; min-height: 180px;
@@ -14,8 +14,8 @@
 /* Image Panel */
 .f-card-img {
   width: 180px; min-width: 180px;
-  align-self: stretch;       /* растягивается на всю высоту карточки */
-  background: linear-gradient(135deg, #1a3a4a 0%, #0f2235 100%);
+  align-self: stretch;
+  background: var(--bg-card-img);
   display: flex; align-items: center; justify-content: center;
   position: relative; overflow: hidden; flex-shrink: 0;
 }
@@ -39,7 +39,7 @@
   margin-left: auto;
 }
 .f-type-loss  { background: rgba(255,107,107,.2); color: #ff6b6b; border: 1px solid rgba(255,107,107,.3); }
-.f-type-found { background: rgba(45,224,200,.2);  color: #2de0c8; border: 1px solid rgba(45,224,200,.3); }
+.f-type-found { background: rgba(var(--teal-rgb), .2);  color: var(--teal); border: 1px solid rgba(var(--teal-rgb), .3); }
 
 /* Status badge for closed/found posts */
 .f-status-badge {
@@ -96,7 +96,7 @@
   flex: 1; padding: 14px 16px;
   display: flex; flex-direction: column; min-width: 0;
 }
-.f-card-title { color: #fff; font-weight: 900; font-size: 1rem; margin-bottom: 5px; line-height: 1.3; }
+.f-card-title { color: var(--text-primary); font-weight: 900; font-size: 1rem; margin-bottom: 5px; line-height: 1.3; }
 .f-card-desc {
   color: var(--muted); font-size: .82rem; line-height: 1.5; margin-bottom: 10px;
   display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
@@ -106,21 +106,21 @@
 .f-card-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
 .f-meta-pill {
   display: flex; align-items: center; gap: 4px;
-  background: rgba(255,255,255,.05); border: 1px solid var(--border);
+  background: var(--hover-bg); border: 1px solid var(--border);
   border-radius: 20px; padding: 3px 9px; font-size: .73rem; color: var(--muted);
 }
 
 /* Map stub */
 .f-card-map {
   width: 100%; height: 76px;
-  background: #080f1c; margin-bottom: 14px; border-radius: 12px;
+  background: var(--bg-input); margin-bottom: 14px; border-radius: 12px;
   border: 1px solid var(--border);
   display: flex; align-items: center; justify-content: center;
   gap: 8px; color: var(--muted); font-size: .78rem;
   cursor: pointer; transition: border-color .2s;
   font-family: var(--font); font-weight: 600;
 }
-.f-card-map:hover { border-color: rgba(45,224,200,.3); color: var(--teal); }
+.f-card-map:hover { border-color: rgba(var(--teal-rgb), .3); color: var(--teal); }
 
 /* Footer */
 .f-card-foot {
@@ -172,7 +172,7 @@
   color: var(--muted); padding: 0;
 }
 .f-card-edit-btn:hover {
-  border-color: rgba(45,224,200,.5); color: #2de0c8; background: rgba(45,224,200,.08);
+  border-color: rgba(var(--teal-rgb), .5); color: var(--teal); background: rgba(var(--teal-rgb), .08);
 }
 .f-card-delete-btn:hover {
   border-color: rgba(255,107,107,.5); color: #ff6b6b; background: rgba(255,107,107,.08);
diff --git a/src/styles/global.css b/src/styles/global.css
index 46eebaf..a9dc81a 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -22,8 +22,8 @@
 }
 
 @keyframes logoPulse {
-  0%, 100% { filter: drop-shadow(0 0 18px rgba(45,224,200,.45)); }
-  50%       { filter: drop-shadow(0 0 38px rgba(45,224,200,.8)); }
+  0%, 100% { filter: drop-shadow(0 0 18px rgba(var(--teal-rgb), .45)); }
+  50%       { filter: drop-shadow(0 0 38px rgba(var(--teal-rgb), .8)); }
 }
 
 @keyframes shimmer {
@@ -32,9 +32,9 @@
 }
 
 .li:focus {
-  border-color: #2de0c8 !important;
-  background: rgba(45,224,200,.07) !important;
-  box-shadow: 0 0 0 3px rgba(45,224,200,.12) !important;
+  border-color: var(--teal) !important;
+  background: rgba(var(--teal-rgb), .07) !important;
+  box-shadow: 0 0 0 3px rgba(var(--teal-rgb), .12) !important;
 }
 .li::placeholder { color: rgba(255,255,255,.32); }
 
diff --git a/src/styles/layout.css b/src/styles/layout.css
index 8b35185..10d2176 100644
--- a/src/styles/layout.css
+++ b/src/styles/layout.css
@@ -1,13 +1,13 @@
 /* ── App Shell ── */
 .f-app {
   display: flex; height: 100vh;
-  background: linear-gradient(135deg, #1a2340 0%, #0d1018 100%);
+  background: var(--bg-app);
   overflow: hidden; font-family: var(--font); position: relative;
 }
 
 /* ── Overlay (mobile sidebar backdrop) ── */
 .f-overlay {
-  position: fixed; inset: 0; background: rgba(0,0,0,0.5);
+  position: fixed; inset: 0; background: var(--bg-overlay);
   z-index: 40; opacity: 0; pointer-events: none; transition: opacity .32s;
 }
 .f-overlay.show { opacity: 1; pointer-events: all; }
@@ -23,15 +23,16 @@
   display: flex; align-items: center; gap: 12px;
   padding: 14px 16px;
   border-bottom: 1px solid var(--border);
-  background: rgba(13,16,24,.7); backdrop-filter: blur(12px);
+  background: var(--bg-surface); backdrop-filter: blur(12px);
   position: sticky; top: 0; z-index: 10;
 }
 .f-menu-btn {
   background: none; border: none; cursor: pointer;
   padding: 6px; border-radius: 8px; transition: background .15s;
   flex-shrink: 0; line-height: 0; width: 32px;
+  color: var(--text-primary);
 }
-.f-menu-btn:hover { background: rgba(255,255,255,.08); }
+.f-menu-btn:hover { background: var(--hover-bg); }
 .f-topbar-center { flex: 1; display: flex; justify-content: center; }
 .f-topbar-spacer { width: 32px; flex-shrink: 0; }
 
@@ -42,7 +43,7 @@
   cursor: pointer; border-radius: 50%;
   transition: background .15s;
 }
-.f-topbar-profile:hover { background: rgba(255,255,255,.08); }
+.f-topbar-profile:hover { background: var(--hover-bg); }
 .f-topbar-profile .f-profile-avatar {
   width: 28px; height: 28px; border-width: 1.5px;
 }
@@ -56,7 +57,7 @@
   display: flex; gap: 10px;
   padding: 12px 16px;
   border-bottom: 1px solid var(--border);
-  background: rgba(13,16,24,.4); backdrop-filter: blur(8px);
+  background: var(--bg-filter); backdrop-filter: blur(8px);
   justify-content: center;
 }
 
@@ -64,17 +65,17 @@
   display: flex; align-items: center; gap: 6px;
   padding: 10px 18px; border-radius: 12px;
   font-family: var(--font); font-size: 0.9rem; font-weight: 600;
-  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
-  color: rgba(255,255,255,.6); cursor: pointer;
+  background: var(--hover-bg); border: 1px solid var(--border);
+  color: var(--muted); cursor: pointer;
   transition: all 0.25s ease;
 }
 .f-filter-btn:hover {
-  background: rgba(255,255,255,.1); border-color: rgba(45,224,200,.3);
-  color: rgba(255,255,255,.8);
+  background: var(--hover-bg); border-color: rgba(var(--teal-rgb), .3);
+  color: var(--text-primary);
 }
 .f-filter-btn.active {
-  background: rgba(45,224,200,.15); border-color: rgba(45,224,200,.5);
-  color: #2de0c8; box-shadow: 0 0 12px rgba(45,224,200,.25);
+  background: rgba(var(--teal-rgb), .15); border-color: rgba(var(--teal-rgb), .5);
+  color: var(--teal); box-shadow: 0 0 12px rgba(var(--teal-rgb), .25);
   font-weight: 700;
 }
 
@@ -87,7 +88,7 @@
 }
 .f-feed::-webkit-scrollbar { width: 4px; }
 .f-feed::-webkit-scrollbar-track { background: transparent; }
-.f-feed::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 2px; }
+.f-feed::-webkit-scrollbar-thumb { background: var(--muted2); border-radius: 2px; }
 
 @media (max-width: 768px) {
   /* Лента занимает весь экран без отступов */
diff --git a/src/styles/modal.css b/src/styles/modal.css
index 1941ca0..65e8ecc 100644
--- a/src/styles/modal.css
+++ b/src/styles/modal.css
@@ -1,79 +1,79 @@
 /* ── Modal Backdrop ── */
 .f-modal-bg {
-  position: fixed; inset: 0; background: rgba(0,0,0,.65); z-index: 100;
+  position: fixed; inset: 0; background: var(--bg-overlay); z-index: 100;
   display: flex; align-items: center; justify-content: center;
   animation: mfadeIn .2s ease;
 }
 .f-modal {
-  background: linear-gradient(155deg, #1d2436, #131720);
-  border: 1px solid rgba(255,255,255,.12); border-radius: 24px;
+  background: var(--bg-card);
+  border: 1px solid var(--border); border-radius: 24px;
   width: 440px; max-height: 90vh; overflow-y: auto; padding: 26px 28px 24px;
   animation: mslideUp .3s cubic-bezier(.34,1.56,.64,1);
 }
 .f-modal::-webkit-scrollbar { width: 4px; }
-.f-modal::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 2px; }
+.f-modal::-webkit-scrollbar-thumb { background: var(--muted2); border-radius: 2px; }
 
 /* Header */
 .f-modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
-.f-modal-title { color: #fff; font-weight: 900; font-size: 1.1rem; }
+.f-modal-title { color: var(--text-primary); font-weight: 900; font-size: 1.1rem; }
 .f-close-btn {
-  background: rgba(255,255,255,.07); border: 1px solid var(--border);
+  background: var(--hover-bg); border: 1px solid var(--border);
   border-radius: 8px; width: 32px; height: 32px;
   display: flex; align-items: center; justify-content: center;
   cursor: pointer; color: var(--muted); transition: background .15s;
 }
-.f-close-btn:hover { background: rgba(255,255,255,.13); color: #fff; }
+.f-close-btn:hover { background: var(--hover-bg); color: var(--text-primary); }
 
 /* Form Fields */
 .f-m-group { margin-bottom: 14px; }
 .f-m-row { display: flex; gap: 10px; }
 .f-m-row .f-m-group { flex: 1; }
 .f-m-label {
-  display: block; color: rgba(255,255,255,.45);
+  display: block; color: var(--muted);
   font-size: .72rem; font-weight: 700; letter-spacing: .6px;
   margin-bottom: 6px; text-transform: uppercase; font-family: var(--font);
 }
 .f-m-field {
-  width: 100%; background: rgba(255,255,255,.055);
-  border: 1.5px solid rgba(255,255,255,.09); border-radius: 12px;
-  padding: 11px 14px; color: #fff; font-family: var(--font);
+  width: 100%; background: var(--bg-input);
+  border: 1.5px solid var(--border); border-radius: 12px;
+  padding: 11px 14px; color: var(--text-primary); font-family: var(--font);
   font-size: .9rem; outline: none; resize: none;
   transition: border-color .2s, box-shadow .2s;
 }
-.f-m-field:focus { border-color: #2de0c8; background: rgba(45,224,200,.07); box-shadow: 0 0 0 3px rgba(45,224,200,.12); }
-.f-m-field::placeholder { color: rgba(255,255,255,.32); }
-.f-m-field option { background: #1d2436; color: #fff; }
+.f-m-field:focus { border-color: var(--teal); background: rgba(var(--teal-rgb), .07); box-shadow: 0 0 0 3px rgba(var(--teal-rgb), .12); }
+.f-m-field::placeholder { color: var(--muted); }
+.f-m-field option { background: var(--bg-surface-solid); color: var(--text-primary); }
 .f-m-field.err { border-color: rgba(255,107,107,.55); }
 
 /* Type Toggle */
 .f-type-toggle { display: flex; gap: 8px; }
 .f-type-opt {
   flex: 1; padding: 10px; border-radius: 10px;
-  border: 1.5px solid rgba(255,255,255,.09); background: rgba(255,255,255,.04);
+  border: 1.5px solid var(--border); background: var(--bg-input);
   color: var(--muted); font-family: var(--font); font-size: .85rem;
   font-weight: 800; cursor: pointer; text-align: center; transition: all .2s;
 }
 .f-type-opt.loss  { border-color: rgba(255,107,107,.5); background: rgba(255,107,107,.12); color: #ff6b6b; }
-.f-type-opt.found { border-color: rgba(45,224,200,.5);  background: rgba(45,224,200,.1);  color: #2de0c8; }
+.f-type-opt.found { border-color: rgba(var(--teal-rgb), .5);  background: rgba(var(--teal-rgb), .1);  color: var(--teal); }
 
 /* Map picker */
 .f-map-pick {
-  height: 80px; background: linear-gradient(135deg, #0f2235, #0a1a2e);
-  border-radius: 12px; border: 1.5px dashed rgba(255,255,255,.15);
+  height: 80px; background: var(--bg-card-img);
+  border-radius: 12px; border: 1.5px dashed var(--border);
   display: flex; align-items: center; justify-content: center;
   gap: 8px; color: var(--muted); font-size: .83rem; cursor: pointer;
   transition: border-color .2s; font-family: var(--font); font-weight: 600;
 }
-.f-map-pick:hover { border-color: rgba(45,224,200,.4); color: var(--teal); }
+.f-map-pick:hover { border-color: rgba(var(--teal-rgb), .4); color: var(--teal); }
 
 /* Image Upload */
 .f-img-upload-label {
   display: flex; align-items: center; justify-content: center; gap: 8px;
-  border: 2px dashed rgba(255,255,255,.15); border-radius: 12px; padding: 20px;
+  border: 2px dashed var(--border); border-radius: 12px; padding: 20px;
   cursor: pointer; color: var(--muted); font-size: .85rem; font-family: var(--font);
   transition: border-color .2s, background .2s;
 }
-.f-img-upload-label:hover { border-color: var(--teal); background: rgba(45,224,200,.05); color: var(--teal); }
+.f-img-upload-label:hover { border-color: var(--teal); background: rgba(var(--teal-rgb), .05); color: var(--teal); }
 .f-img-input { display: none; }
 
 /* Image Preview */
@@ -95,7 +95,7 @@
 /* Submit Button */
 .f-m-submit {
   width: 100%;
-  background: linear-gradient(90deg, #1fc9b0, #2de0c8, #1fc9b0);
+  background: linear-gradient(90deg, var(--teal2), var(--teal), var(--teal2));
   background-size: 200% 100%; border: none; border-radius: 13px;
   padding: 14px; color: #082320; font-family: var(--font);
   font-size: 1rem; font-weight: 900; cursor: pointer; margin-top: 6px;
@@ -103,7 +103,7 @@
 }
 .f-m-submit:hover:not(:disabled) { opacity: .88; transform: translateY(-1px); }
 .f-m-submit:active:not(:disabled) { transform: translateY(0); }
-.f-m-submit:disabled { opacity: .5; cursor: not-allowed; animation: none; background: #444; color: #aaa; }
+.f-m-submit:disabled { opacity: .5; cursor: not-allowed; animation: none; background: var(--muted2); color: var(--muted); }
 .f-m-submit-row { display: flex; align-items: center; justify-content: center; gap: 8px; }
 
 /* ── Modal Logout Button ── */
@@ -120,7 +120,7 @@
 }
 .f-m-spinner {
   width: 16px; height: 16px;
-  border: 2px solid rgba(8,35,32,.3); border-top-color: #082320;
+  border: 2px solid var(--border); border-top-color: var(--teal);
   border-radius: 50%; animation: spin .7s linear infinite;
 }
 
diff --git a/src/styles/sidebar.css b/src/styles/sidebar.css
index 7fec599..62eefb3 100644
--- a/src/styles/sidebar.css
+++ b/src/styles/sidebar.css
@@ -1,15 +1,3 @@
-/* ── Left Sidebar ── */
-.f-sidebar {
-  width: 260px; min-width: 260px;
-  background: linear-gradient(180deg, #1a2540 0%, #111827 100%);
-  border-right: 1px solid var(--border);
-  display: flex; flex-direction: column;
-  transform: translateX(-100%);
-  transition: transform .32s cubic-bezier(.4,0,.2,1);
-  position: fixed; left: 0; top: 0; height: 100%; z-index: 50;
-}
-.f-sidebar.open { transform: translateX(0); }
-
 .f-sb-head {
   padding: 22px 20px 16px;
   display: flex; align-items: center; gap: 11px;
@@ -21,7 +9,7 @@
   border-radius: 10px;
   display: flex; align-items: center; justify-content: center; flex-shrink: 0;
 }
-.f-sb-name { color: #fff; font-weight: 900; font-size: 1.1rem; letter-spacing: -.3px; }
+.f-sb-name { color: var(--text-primary); font-weight: 900; font-size: 1.1rem; letter-spacing: -.3px; }
 .f-sb-nav { padding: 12px 0; flex: 1; }
 .f-sb-bottom { padding: 12px 0; border-top: 1px solid var(--border); }
 .f-sb-item {
@@ -31,17 +19,14 @@
   color: var(--muted); font-size: .9rem; font-weight: 700;
   border-left: 3px solid transparent;
 }
-.f-sb-item:hover { background: rgba(255,255,255,.05); color: #fff; }
-.f-sb-item.active { background: rgba(45,224,200,.1); color: var(--teal); border-left-color: var(--teal); }
-
-/* ── Right Sidebar ── */
-.f-right {
-  width: 220px; min-width: 220px; padding: 16px 12px;
-  border-left: 1px solid var(--border);
-  display: flex; flex-direction: column; gap: 14px; overflow-y: auto;
+.f-sb-item:hover { background: var(--hover-bg); color: var(--text-primary); }
+.f-sb-item.active { background: rgba(var(--teal-rgb), .1); color: var(--teal); border-left-color: var(--teal); }
+.f-sb-divider {
+  height: 1px; background: var(--border);
+  margin: 8px 0;
 }
 .f-right::-webkit-scrollbar { width: 3px; }
-.f-right::-webkit-scrollbar-thumb { background: rgba(255,255,255,.08); border-radius: 2px; }
+.f-right::-webkit-scrollbar-thumb { background: var(--muted2); border-radius: 2px; }
 .f-right-label {
   font-size: .65rem; font-weight: 900;
   text-transform: uppercase; letter-spacing: .8px; color: var(--muted2);
@@ -50,23 +35,23 @@
   flex: 1; display: flex; flex-direction: column;
   align-items: center; justify-content: center;
   gap: 12px; text-align: center;
-  border: 1.5px dashed rgba(255,255,255,.08);
+  border: 1.5px dashed var(--border);
   border-radius: 16px; padding: 20px; min-height: 200px;
 }
 .f-right-empty-icon { font-size: 2rem; opacity: .2; }
 .f-right-empty-text { color: var(--muted); font-size: .78rem; line-height: 1.5; }
 .f-add-promo-btn {
-  background: rgba(45,224,200,.08); border: 1px solid rgba(45,224,200,.25);
+  background: rgba(var(--teal-rgb), .08); border: 1px solid rgba(var(--teal-rgb), .25);
   border-radius: 10px; padding: 9px 14px;
   color: var(--teal); font-family: var(--font);
   font-size: .8rem; font-weight: 800; cursor: pointer;
   transition: background .2s, transform .15s;
 }
-.f-add-promo-btn:hover { background: rgba(45,224,200,.15); transform: translateY(-1px); }
+.f-add-promo-btn:hover { background: rgba(var(--teal-rgb), .15); transform: translateY(-1px); }
 
 .f-sidebar {
   width: 260px; min-width: 260px;
-  background: linear-gradient(180deg, rgba(26,37,64,.82) 0%, rgba(17,24,39,.88) 100%);
+  background: var(--bg-surface);
   backdrop-filter: blur(18px);
   -webkit-backdrop-filter: blur(18px);
   border-right: 1px solid var(--border);
@@ -75,24 +60,17 @@
   transition: transform .32s cubic-bezier(.4,0,.2,1);
   position: fixed; left: 0; top: 0; height: 100%; z-index: 50;
 }
+.f-sidebar.open { transform: translateX(0); }
 
 .f-right {
   width: 220px; min-width: 220px; padding: 16px 12px;
   border-left: 1px solid var(--border);
-  background: rgba(17,24,39,.55);
+  background: var(--bg-surface);
   backdrop-filter: blur(14px);
   -webkit-backdrop-filter: blur(14px);
   display: flex; flex-direction: column; gap: 14px; overflow-y: auto;
 }
 
-.f-sb-logo {
-  width: 36px; height: 36px;
-  background: linear-gradient(135deg, var(--teal2), var(--teal));
-  border-radius: 10px;
-  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
-  box-shadow: 0 0 12px rgba(45,224,200,.3); /* мягкое свечение */
-}
-
 /* ── Profile Component ── */
 .f-profile {
   display: flex; align-items: center; gap: 12px;
@@ -121,7 +99,7 @@
 
 .f-profile-info { flex: 1; min-width: 0; }
 .f-profile-name {
-  color: #fff; font-weight: 700; font-size: .85rem;
+  color: var(--text-primary); font-weight: 700; font-size: .85rem;
   white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
 }
 .f-profile-email {
@@ -129,11 +107,6 @@
   white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
 }
 
-.f-sb-divider {
-  height: 1px; background: rgba(255, 255, 255, .08);
-  margin: 8px 0;
-}
-
 @media (max-width: 900px) {
   .f-right {
     display: none;
diff --git a/src/styles/ui.css b/src/styles/ui.css
index 4951410..88df5b9 100644
--- a/src/styles/ui.css
+++ b/src/styles/ui.css
@@ -3,10 +3,10 @@
   display: flex; align-items: center; gap: 10px;
   padding: 12px 28px; border-radius: 16px;
   font-family: var(--font); font-weight: 900; font-size: 0.95rem; letter-spacing: 0.3px;
-  color: #eafffb;
-  background: rgba(45,224,200,0.12); backdrop-filter: blur(14px);
-  border: 1px solid rgba(45,224,200,0.25);
-  box-shadow: 0 8px 24px rgba(0,0,0,0.35), inset 0 0 12px rgba(45,224,200,0.15), 0 0 18px rgba(45,224,200,0.15);
+  color: var(--teal);
+  background: rgba(var(--teal-rgb), 0.12); backdrop-filter: blur(14px);
+  border: 1px solid rgba(var(--teal-rgb), 0.25);
+  box-shadow: 0 8px 24px rgba(0,0,0,0.35), inset 0 0 12px rgba(var(--teal-rgb), 0.15), 0 0 18px rgba(var(--teal-rgb), 0.15);
   cursor: pointer; transition: all 0.25s ease;
   position: relative; overflow: hidden;
 }
@@ -17,22 +17,22 @@
 }
 .f-post-btn:hover {
   transform: translateY(-2px) scale(1.02);
-  border-color: rgba(45,224,200,0.5);
-  box-shadow: 0 12px 32px rgba(0,0,0,0.45), inset 0 0 18px rgba(45,224,200,0.25), 0 0 26px rgba(45,224,200,0.35);
+  border-color: rgba(var(--teal-rgb), 0.5);
+  box-shadow: 0 12px 32px rgba(0,0,0,0.45), inset 0 0 18px rgba(var(--teal-rgb), 0.25), 0 0 26px rgba(var(--teal-rgb), 0.35);
 }
 .f-post-btn:active {
   transform: translateY(0) scale(0.98);
-  box-shadow: 0 4px 12px rgba(0,0,0,0.4), inset 0 0 10px rgba(45,224,200,0.2);
+  box-shadow: 0 4px 12px rgba(0,0,0,0.4), inset 0 0 10px rgba(var(--teal-rgb), 0.2);
 }
 /* ── Login Button (topbar) ── */
 .f-login-btn {
   display: flex; align-items: center; gap: 6px;
   padding: 8px 18px; border-radius: 14px;
   font-family: var(--font); font-weight: 800; font-size: 0.85rem; letter-spacing: 0.3px;
-  color: #eafffb;
-  background: rgba(45,224,200,0.12); backdrop-filter: blur(14px);
-  border: 1px solid rgba(45,224,200,0.25);
-  box-shadow: 0 6px 18px rgba(0,0,0,0.35), inset 0 0 10px rgba(45,224,200,0.12), 0 0 14px rgba(45,224,200,0.12);
+  color: var(--teal);
+  background: rgba(var(--teal-rgb), 0.12); backdrop-filter: blur(14px);
+  border: 1px solid rgba(var(--teal-rgb), 0.25);
+  box-shadow: 0 6px 18px rgba(0,0,0,0.35), inset 0 0 10px rgba(var(--teal-rgb), 0.12), 0 0 14px rgba(var(--teal-rgb), 0.12);
   cursor: pointer; transition: all 0.25s ease;
   position: relative; overflow: hidden; white-space: nowrap;
 }
@@ -43,18 +43,18 @@
 }
 .f-login-btn:hover {
   transform: translateY(-2px) scale(1.02);
-  border-color: rgba(45,224,200,0.5);
-  box-shadow: 0 10px 26px rgba(0,0,0,0.45), inset 0 0 14px rgba(45,224,200,0.22), 0 0 20px rgba(45,224,200,0.3);
+  border-color: rgba(var(--teal-rgb), 0.5);
+  box-shadow: 0 10px 26px rgba(0,0,0,0.45), inset 0 0 14px rgba(var(--teal-rgb), 0.22), 0 0 20px rgba(var(--teal-rgb), 0.3);
 }
 .f-login-btn:active {
   transform: translateY(0) scale(0.98);
-  box-shadow: 0 3px 10px rgba(0,0,0,0.4), inset 0 0 8px rgba(45,224,200,0.18);
+  box-shadow: 0 3px 10px rgba(0,0,0,0.4), inset 0 0 8px rgba(var(--teal-rgb), 0.18);
 }
 
 .f-post-btn span {
   display: flex; align-items: center; justify-content: center;
   width: 22px; height: 22px; border-radius: 50%;
-  background: rgba(45,224,200,0.2); box-shadow: 0 0 10px rgba(45,224,200,0.4);
+  background: rgba(var(--teal-rgb), 0.2); box-shadow: 0 0 10px rgba(var(--teal-rgb), 0.4);
   font-size: 1.2rem; transform: translateY(-2px);
 }
 
@@ -65,13 +65,13 @@
   gap: 12px; color: var(--muted); text-align: center; padding: 40px;
 }
 .f-center-icon  { font-size: 2.8rem; opacity: .3; }
-.f-center-title { font-size: 1rem; font-weight: 700; color: rgba(255,255,255,.5); }
+.f-center-title { font-size: 1rem; font-weight: 700; color: var(--muted); }
 .f-center-sub   { font-size: .82rem; line-height: 1.6; }
 
 /* ── Loading Spinner ── */
 .f-spinner-wrap { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: .88rem; }
 .f-spinner {
   width: 20px; height: 20px;
-  border: 2px solid rgba(45,224,200,.2); border-top-color: var(--teal);
+  border: 2px solid rgba(var(--teal-rgb), .2); border-top-color: var(--teal);
   border-radius: 50%; animation: spin .7s linear infinite; flex-shrink: 0;
 }