diff --git a/.env b/.env
index 23ab1f4..ded0ed4 100644
--- a/.env
+++ b/.env
@@ -1,9 +1,11 @@
 BOT_TOKEN=8406127231:AAG5m0Ft0UUyTW2KI-jwYniXtIRcbSdlxf8
+WEB_APP_URL=https://app.stellarisei.ru/
+BASE_URL=https://proxy.stellarisei.ru/
 MARZBAN_URL=http://144.31.66.170:7575/
 MARZBAN_USERNAME=admin
 MARZBAN_PASSWORD=rY4tU8hX4nqF
-BASE_URL=https://proxy.stellarisei.ru/
 # Оставьте пустым для использования SQLite (создаст файл bot.db)
 # DATABASE_URL=postgresql://user:password@localhost/vpnbot
 ADMIN_IDS=583602906
 PROVIDER_TOKEN=
+
diff --git a/.gitignore b/.gitignore
index c06a1af..004c967 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1 @@
-bot.db
-.env
\ No newline at end of file
+bot.db
\ No newline at end of file
diff --git a/config.py b/config.py
index 6097649..17b7b38 100644
--- a/config.py
+++ b/config.py
@@ -11,7 +11,9 @@ CONFIG = {
     "DATABASE_URL": os.getenv("DATABASE_URL"),
     "ADMIN_IDS": [int(i.strip()) for i in os.getenv("ADMIN_IDS", "").split(",") if i.strip()],
     "PROVIDER_TOKEN": os.getenv("PROVIDER_TOKEN", ""),
-    "BASE_URL": os.getenv("BASE_URL"), # Внешний домен (например, https://vpn.example.com)
+    "BASE_URL": os.getenv("BASE_URL"), # Внешний домен для VPN (панель Marzban)
+    "WEB_APP_URL": os.getenv("WEB_APP_URL"), # URL для веб-приложения (Mini App)
+    "WEB_APP_PORT": int(os.getenv("WEB_APP_PORT", 8000)),
 }
 
 PLANS = {
diff --git a/keyboards.py b/keyboards.py
index 9e5a45b..baae4ef 100644
--- a/keyboards.py
+++ b/keyboards.py
@@ -5,8 +5,8 @@ def main_keyboard(is_admin: bool = False, has_active_sub: bool = False) -> Inlin
     buttons = []
     
     # Web App Button
-    if CONFIG["BASE_URL"]:
-         buttons.append([InlineKeyboardButton(text="🚀 Открыть приложение", web_app=WebAppInfo(url=CONFIG["BASE_URL"]))])
+    if CONFIG["WEB_APP_URL"]:
+         buttons.append([InlineKeyboardButton(text="🚀 Открыть приложение", web_app=WebAppInfo(url=CONFIG["WEB_APP_URL"]))])
 
     # Если подписки нет (или истекла), показываем кнопку покупки на главном
     if not has_active_sub:
diff --git a/main.py b/main.py
index 1af7e58..0ead0bd 100644
--- a/main.py
+++ b/main.py
@@ -69,7 +69,7 @@ async def main():
         from server import app as web_app
         import uvicorn
         web_app.state.bot = bot
-        config = uvicorn.Config(web_app, host="0.0.0.0", port=8000, log_level="info")
+        config = uvicorn.Config(web_app, host="0.0.0.0", port=CONFIG["WEB_APP_PORT"], log_level="info")
         server = uvicorn.Server(config)
     except ImportError:
         logger.error("Could not import server or uvicorn")
@@ -80,19 +80,25 @@ async def main():
         
         # Set Menu Button
         from aiogram.types import MenuButtonWebApp, WebAppInfo
-        if CONFIG["BASE_URL"]:
+        if CONFIG["WEB_APP_URL"]:
              try:
                  await bot.set_chat_menu_button(
-                     menu_button=MenuButtonWebApp(text="🚀 Dashboard", web_app=WebAppInfo(url=CONFIG["BASE_URL"]))
+                     menu_button=MenuButtonWebApp(text="🚀 Dashboard", web_app=WebAppInfo(url=CONFIG["WEB_APP_URL"]))
                  )
-                 logger.info(f"Menu button set to {CONFIG['BASE_URL']}")
+                 logger.info(f"Menu button set to {CONFIG['WEB_APP_URL']}")
              except Exception as e:
                  logger.error(f"Failed to set menu button: {e}")
+        else:
+            # Если URL не задан, сбрасываем кнопку (чтобы не осталась старая ссылка)
+            await bot.delete_chat_menu_button()
+            logger.info("WEB_APP_URL not found, menu button reset to default.")
+
+        logger.info(f"Config: BASE_URL={CONFIG['BASE_URL']}, WEB_APP_URL={CONFIG['WEB_APP_URL']}")
         
         logger.info("Bot started!")
         
         if server:
-            logger.info("Starting Web App on port 8000")
+            logger.info(f"Starting Web App on port {CONFIG['WEB_APP_PORT']}")
             await asyncio.gather(
                 dp.start_polling(bot),
                 server.serve()
diff --git a/server.py b/server.py
index 3327e03..e29ea78 100644
--- a/server.py
+++ b/server.py
@@ -8,7 +8,8 @@ import logging
 import json
 
 from database import db
-from config import PLANS
+from config import PLANS, CONFIG
+from marzban import marzban
 
 # Setup logging
 logging.basicConfig(level=logging.INFO)
@@ -30,7 +31,6 @@ async def startup():
 
 @app.get("/api/plans")
 async def get_plans():
-    # Convert PLANS dict to list for easier frontend consumption
     plans_list = []
     for pid, p in PLANS.items():
         plans_list.append({
@@ -45,32 +45,55 @@ from pydantic import BaseModel
 class BuyPlanRequest(BaseModel):
     user_id: int
     plan_id: str
+    promo_code: str = None
+
+class PromoCheckRequest(BaseModel):
+    code: str
+
+@app.post("/api/check-promo")
+async def check_promo_code(req: PromoCheckRequest):
+    promo = await db.get_promo_code(req.code)
+    if not promo:
+        return JSONResponse(status_code=404, content={"error": "Invalid or expired promo code"})
+    
+    return {
+        "code": promo["code"],
+        "discount": promo["discount"],
+        "bonus_days": promo["bonus_days"],
+        "is_unlimited": promo["is_unlimited"],
+        "description": f"Discount {promo['discount']}%" + (f" + {promo['bonus_days']} Days" if promo['bonus_days'] else "")
+    }
 
 @app.post("/api/create-invoice")
 async def create_invoice(req: BuyPlanRequest, request: Request):
     bot = getattr(request.app.state, "bot", None)
     if not bot:
-        return JSONResponse(status_code=500, content={"error": "Bot instance not initialized in app state"})
+        return JSONResponse(status_code=500, content={"error": "Bot instance not initialized"})
 
     plan = PLANS.get(req.plan_id)
     if not plan:
         return JSONResponse(status_code=404, content={"error": "Plan not found"})
 
-    # Determine price in Stars (XTR). Assuming Plan Price in config is in RUB, need conversion or direct usage.
-    # Telegram Stars usually 1 Star ~= 0.013 USD? Or direct mapping. 
-    # User's bot code uses currency="XTR" and prices=[LabeledPrice(..., amount=final_price)]. 
-    # Usually amount is in smallest units? XTR amount is integer number of stars.
-    # Assuming config price IS stars or directly usable.
     price = plan['price']
 
+    # Validating Promo
+    discount = 0
+    if req.promo_code:
+        promo = await db.get_promo_code(req.promo_code)
+        if promo:
+             discount = promo['discount']
+    
+    final_price = int(price * (100 - discount) / 100)
+    if final_price < 1: final_price = 1
+
     try:
         invoice_link = await bot.create_invoice_link(
             title=f"Sub: {plan['name']}",
             description=f"{plan['data_limit']}GB / {plan['days']} days",
-            payload=f"{req.plan_id}:", # Promo code empty for now
+            payload=f"{req.plan_id}:{req.promo_code or ''}",
             provider_token="", # Empty for Stars
             currency="XTR",
-            prices=[LabeledPrice(label=plan['name'], amount=price)]
+            prices=[LabeledPrice(label=plan['name'], amount=final_price)]
         )
         return {"invoice_link": invoice_link}
     except Exception as e:
@@ -86,7 +109,7 @@ async def get_user_stats(user_id: int):
     sub_until = user['subscription_until']
     days_left = 0
     status = "Inactive"
-    expire_str = "-"
+    expire_str = "No active subscription"
 
     if sub_until:
         if isinstance(sub_until, str):
@@ -96,7 +119,7 @@ async def get_user_stats(user_id: int):
                 pass
         
         if isinstance(sub_until, datetime):
-            expire_str = sub_until.strftime("%Y-%m-%d")
+            expire_str = sub_until.strftime("%d.%m.%Y")
             if sub_until > datetime.now():
                 delta = sub_until - datetime.now()
                 days_left = delta.days
@@ -104,16 +127,40 @@ async def get_user_stats(user_id: int):
             else:
                 status = "Expired"
 
+    # Fetch detailed stats from Marzban
+    sub_url = ""
+    used_traffic = 0
+    
+    if user['marzban_username']:
+        try:
+            m_user = await marzban.get_user(user['marzban_username'])
+            # Check for error in response
+            if isinstance(m_user, dict) and not m_user.get('detail'):
+                used_traffic = m_user.get('used_traffic', 0)
+                sub_url = m_user.get('subscription_url', "")
+                
+                # Fix relative URL
+                if sub_url and sub_url.startswith('/'):
+                    base = CONFIG.get('BASE_URL') or CONFIG['MARZBAN_URL']
+                    sub_url = f"{base.rstrip('/')}{sub_url}"
+        except Exception as e:
+            logger.error(f"Marzban fetch error: {e}")
+
     return {
         "status": status,
         "days_left": days_left,
         "expire_date": expire_str,
-        "data_usage": user['data_limit'] or 0,
-        "plan": "Custom"
+        "data_limit_gb": user['data_limit'] or 0,
+        "used_traffic_gb": round(used_traffic / (1024**3), 2),
+        "plan": "Premium",
+        "subscription_url": sub_url,
+        "username": user['username'],
+        "marzban_username": user['marzban_username']
     }
 
 # Serve Static Files (must be last)
 app.mount("/", StaticFiles(directory="web_app/static", html=True), name="static")
 
 if __name__ == "__main__":
-    uvicorn.run(app, host="0.0.0.0", port=8000)
+    from config import CONFIG
+    uvicorn.run(app, host="0.0.0.0", port=CONFIG["WEB_APP_PORT"])
diff --git a/web_app/static/css/style.css b/web_app/static/css/style.css
index 8ce85ac..d8885f1 100644
--- a/web_app/static/css/style.css
+++ b/web_app/static/css/style.css
@@ -1,331 +1,187 @@
 :root {
-    --bg-color: #050510;
-    --glass-bg: rgba(255, 255, 255, 0.05);
-    --glass-border: rgba(255, 255, 255, 0.1);
-    --glass-highlight: rgba(255, 255, 255, 0.15);
-    --primary: #6366f1;
-    --primary-glow: rgba(99, 102, 241, 0.5);
-    --text-main: #ffffff;
-    --text-muted: #94a3b8;
-    --radius: 16px;
+    /* MD3 Color Tokens - Dark Theme (Violet/Deep Space) */
+    --md-sys-color-background: #09090b;
+    --md-sys-color-on-background: #e2e2e6;
+
+    --md-sys-color-surface: #0f1115;
+    /* Main card bg */
+    --md-sys-color-surface-dim: #09090b;
+    /* App bg */
+    --md-sys-color-surface-container: #1b1f26;
+    /* Elevated cards */
+    --md-sys-color-surface-container-high: #242933;
+    /* Modal/Nav */
+
+    --md-sys-color-primary: #d0bcff;
+    --md-sys-color-on-primary: #381e72;
+    --md-sys-color-primary-container: #4f378b;
+    --md-sys-color-on-primary-container: #eaddff;
+
+    --md-sys-color-secondary: #ccc2dc;
+    --md-sys-color-on-secondary: #332d41;
+    --md-sys-color-secondary-container: #4a4458;
+    --md-sys-color-on-secondary-container: #e8def8;
+
+    --md-sys-color-tertiary: #efb8c8;
+    --md-sys-color-outline: #938f99;
+    --md-sys-color-outline-variant: #49454f;
+
+    --radius-l: 24px;
+    --radius-pill: 50px;
     --font-main: 'Outfit', sans-serif;
+
+    /* Effects */
+    --elevation-1: 0px 1px 3px 1px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.3);
+    --elevation-2: 0px 2px 6px 2px rgba(0, 0, 0, 0.15), 0px 1px 2px 0px rgba(0, 0, 0, 0.3);
+    --glass-bg: rgba(30, 33, 40, 0.7);
+    --glass-border: rgba(255, 255, 255, 0.08);
+    /* Faint stroke for premium feel */
 }
 
 * {
     box-sizing: border-box;
     margin: 0;
     padding: 0;
+    -webkit-tap-highlight-color: transparent;
 }
 
 body {
-    background-color: var(--bg-color);
-    color: var(--text-main);
+    background-color: var(--md-sys-color-background);
+    color: var(--md-sys-color-on-background);
     font-family: var(--font-main);
-    overflow: hidden;
-    height: 100vh;
-    display: flex;
-    justify-content: center;
-    align-items: center;
+    font-size: 16px;
+    min-height: 100vh;
+    padding-bottom: 80px;
+    /* Space for bottom nav */
 }
 
+/* Background Animation */
 #stars-container {
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100%;
+    z-index: -2;
+    background: radial-gradient(circle at 50% 100%, #17101f 0%, #09090b 100%);
+    opacity: 0.6;
+}
+
+.glow-overlay {
     position: fixed;
     top: 0;
     left: 0;
     width: 100%;
     height: 100%;
     z-index: -1;
-    background: radial-gradient(ellipse at bottom, #1b2735 0%, #090a0f 100%);
+    background: radial-gradient(circle at 80% 10%, rgba(208, 188, 255, 0.05) 0%, transparent 50%),
+        radial-gradient(circle at 20% 90%, rgba(79, 55, 139, 0.1) 0%, transparent 50%);
+    pointer-events: none;
 }
 
-.app-container {
-    display: flex;
-    width: 95vw;
-    height: 90vh;
-    border-radius: 24px;
-    overflow: hidden;
-    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
-    background: rgba(15, 23, 42, 0.3);
-    backdrop-filter: blur(20px);
-    border: 1px solid var(--glass-border);
-}
-
-/* Sidebar */
-.sidebar {
-    width: 250px;
-    background: rgba(0, 0, 0, 0.2);
-    display: flex;
-    flex-direction: column;
-    padding: 24px;
-    border-right: 1px solid var(--glass-border);
-}
-
-.logo {
-    display: flex;
-    align-items: center;
-    gap: 12px;
-    font-size: 24px;
-    font-weight: 700;
-    color: var(--text-main);
-    margin-bottom: 40px;
-}
-
-.logo-icon {
-    color: var(--primary);
-    filter: drop-shadow(0 0 8px var(--primary-glow));
-}
-
-.nav-item {
-    display: flex;
-    align-items: center;
-    gap: 12px;
-    padding: 12px 16px;
-    margin-bottom: 8px;
-    background: transparent;
-    border: none;
-    color: var(--text-muted);
-    font-size: 16px;
-    font-family: inherit;
-    cursor: pointer;
-    border-radius: 12px;
-    transition: all 0.3s ease;
-    width: 100%;
-    text-align: left;
-}
-
-.nav-item:hover {
-    background: var(--glass-bg);
-    color: var(--text-main);
-}
-
-.nav-item.active {
-    background: var(--primary);
-    color: white;
-    box-shadow: 0 4px 12px var(--primary-glow);
-}
-
-.user-mini {
-    margin-top: auto;
-    display: flex;
-    align-items: center;
-    gap: 12px;
-    padding-top: 20px;
-    border-top: 1px solid var(--glass-border);
-}
-
-.avatar,
-.big-avatar {
-    width: 40px;
-    height: 40px;
-    border-radius: 50%;
-    background: linear-gradient(135deg, #a855f7, #6366f1);
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    font-weight: 700;
-    color: white;
-}
-
-.big-avatar {
-    width: 80px;
-    height: 80px;
+/* Typography */
+h1 {
     font-size: 32px;
-    margin-bottom: 16px;
-}
-
-.info {
-    display: flex;
-    flex-direction: column;
-}
-
-.name {
     font-weight: 600;
-    font-size: 14px;
+    color: var(--md-sys-color-on-background);
+    letter-spacing: -0.5px;
+    margin-bottom: 4px;
 }
 
-.status {
-    font-size: 12px;
-    color: #4ade80;
-}
-
-/* Main Content */
-.content {
-    flex: 1;
-    display: flex;
-    flex-direction: column;
-}
-
-header {
-    height: 80px;
-    display: flex;
-    align-items: center;
-    justify-content: space-between;
-    padding: 0 32px;
-    border-bottom: 1px solid var(--glass-border);
-}
-
-.glass {
-    background: var(--glass-bg);
-    border: 1px solid var(--glass-border);
-    backdrop-filter: blur(12px);
-    border-radius: var(--radius);
-}
-
-.input-glass {
-    background: rgba(0, 0, 0, 0.2);
-    border: 1px solid var(--glass-border);
-    color: white;
-    padding: 10px;
-    border-radius: 8px;
-    font-family: inherit;
-}
-
-.icon-btn {
-    background: transparent;
-    border: none;
-    color: var(--text-main);
-    padding: 8px;
-    cursor: pointer;
-    border-radius: 50%;
-    transition: background 0.2s;
-}
-
-.icon-btn:hover {
-    background: var(--glass-bg);
-}
-
-.view-container {
-    padding: 32px;
-    overflow-y: auto;
-    flex: 1;
-}
-
-/* Dashboard Grid */
-.stats-grid {
-    display: grid;
-    grid-template-columns: repeat(3, 1fr);
-    gap: 24px;
-    margin-bottom: 32px;
-}
-
-.stat-card {
-    padding: 24px;
-    display: flex;
-    align-items: center;
-    gap: 16px;
-}
-
-.icon-box {
-    width: 48px;
-    height: 48px;
-    border-radius: 12px;
-    background: rgba(255, 255, 255, 0.1);
-    display: flex;
-    align-items: center;
-    justify-content: center;
-    color: var(--primary);
-}
-
-.stat-info h3 {
-    font-size: 14px;
-    color: var(--text-muted);
-    font-weight: 500;
-}
-
-.stat-info .value {
-    font-size: 24px;
-    font-weight: 700;
-    margin-top: 4px;
-}
-
-.sub-details {
-    padding: 24px;
-    display: flex;
-    flex-direction: column;
-    gap: 16px;
-    max-width: 500px;
-}
-
-.detail-row {
-    display: flex;
-    justify-content: space-between;
-    padding: 8px 0;
-    border-bottom: 1px solid var(--glass-border);
-}
-
-.btn-primary {
-    background: linear-gradient(135deg, #6366f1, #8b5cf6);
-    color: white;
-    border: none;
-    padding: 12px 24px;
-    border-radius: 12px;
-    font-weight: 600;
-    cursor: pointer;
-    transition: transform 0.2s, box-shadow 0.2s;
-    box-shadow: 0 4px 15px var(--primary-glow);
-}
-
-.btn-primary:hover {
-    transform: translateY(-2px);
-    box-shadow: 0 6px 20px var(--primary-glow);
-}
-
-.btn-primary.full-width {
-    width: 100%;
-    margin-top: 16px;
-}
-
-/* Shop */
-.plans-grid {
-    display: grid;
-    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
-    gap: 24px;
-}
-
-.plan-card {
-    padding: 24px;
-    display: flex;
-    flex-direction: column;
-    align-items: center;
-    text-align: center;
-    transition: transform 0.3s;
-}
-
-.plan-card:hover {
-    transform: translateY(-5px);
-    border-color: var(--primary);
-}
-
-.plan-name {
+h2 {
     font-size: 20px;
-    font-weight: 700;
-    margin-bottom: 8px;
+    font-weight: 500;
+    color: var(--md-sys-color-on-background);
 }
 
-.plan-price {
-    font-size: 32px;
-    font-weight: 800;
-    color: var(--primary);
-    margin-bottom: 24px;
+.subtitle {
+    color: var(--md-sys-color-outline);
+    font-size: 14px;
+    font-weight: 400;
 }
 
-.plan-features {
-    list-style: none;
-    margin-bottom: 24px;
-    width: 100%;
+/* Layout */
+.app-layout {
+    margin: 0 auto;
+    min-height: 100vh;
 }
 
-.plan-features li {
-    padding: 8px 0;
+.sidebar {
+    display: none;
+    /* Hidden on mobile */
+    position: sticky;
+    top: 0;
+    height: 100vh;
+    padding: 30px;
+    flex-direction: column;
+    z-index: 50;
+}
+
+.content-area {
+    flex: 1;
+    padding: 0;
+    display: flex;
+    flex-direction: column;
+    min-width: 0;
+    /* Prevent flex overflow */
+}
+
+/* Components: Glass / Surface */
+.glass {
+    background: var(--md-sys-color-surface-container);
+    border: 1px solid var(--glass-border);
+    border-radius: var(--radius-l);
+    backdrop-filter: blur(10px);
+    /* Less blur for performance, color does work */
+}
+
+/* Headers */
+.mobile-header {
+    height: 64px;
+    padding: 0 24px;
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    position: sticky;
+    top: 0;
+    z-index: 50;
+    background: rgba(9, 9, 11, 0.8);
+    backdrop-filter: blur(12px);
     border-bottom: 1px solid var(--glass-border);
-    color: var(--text-muted);
 }
 
-/* Animations */
-@keyframes fadeIn {
+.logo-mini {
+    font-size: 22px;
+    font-weight: 600;
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    letter-spacing: -0.5px;
+}
+
+.user-chip .avatar-xs {
+    width: 36px;
+    height: 36px;
+    border-radius: 50%;
+    background: var(--md-sys-color-primary-container);
+    color: var(--md-sys-color-on-primary-container);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-weight: 600;
+    font-size: 14px;
+}
+
+/* View Container */
+.view-container {
+    padding: 24px;
+    animation: fadeUp 0.3s cubic-bezier(0.2, 0.0, 0, 1.0);
+}
+
+@keyframes fadeUp {
     from {
         opacity: 0;
-        transform: translateY(10px);
+        transform: translateY(15px);
     }
 
     to {
@@ -334,40 +190,455 @@ header {
     }
 }
 
-.view-container>* {
-    animation: fadeIn 0.4s ease-out;
+/* MD3 Cards */
+.status-card {
+    background: var(--md-sys-color-surface-container);
+    padding: 24px;
+    border-radius: var(--radius-l);
+    margin-bottom: 16px;
+    position: relative;
+    overflow: hidden;
+    border: 1px solid var(--glass-border);
+    box-shadow: var(--elevation-1);
 }
 
-/* Mobile */
-@media (max-width: 768px) {
-    .app-container {
-        width: 100vw;
-        height: 100vh;
-        border-radius: 0;
-        flex-direction: column;
+/* Stats Ring */
+.status-ring {
+    width: 120px;
+    height: 120px;
+    margin-bottom: 16px;
+    align-self: center;
+}
+
+.circular-chart {
+    display: block;
+    width: 100%;
+}
+
+.circle-bg {
+    stroke: var(--md-sys-color-surface-container-high);
+    stroke-width: 8;
+    /* Thicker premium look */
+    fill: none;
+}
+
+.circle {
+    stroke: var(--md-sys-color-primary);
+    stroke-width: 8;
+    stroke-linecap: round;
+    fill: none;
+    transition: stroke-dasharray 1s ease;
+}
+
+.ring-content {
+    position: absolute;
+    top: 24px;
+    left: 24px;
+    width: 120px;
+    height: 120px;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+}
+
+.ring-content .value {
+    font-size: 24px;
+    font-weight: 700;
+    color: var(--md-sys-color-primary);
+}
+
+.ring-content .unit {
+    font-size: 12px;
+    color: var(--md-sys-color-outline);
+}
+
+/* Details List */
+.status-details {
+    background: var(--md-sys-color-surface-dim);
+    border-radius: 16px;
+    padding: 16px;
+}
+
+.detail-item {
+    display: flex;
+    justify-content: space-between;
+    padding: 12px 0;
+    border-bottom: 1px solid var(--md-sys-color-outline-variant);
+    font-size: 15px;
+}
+
+.detail-item:last-child {
+    border: none;
+    padding-bottom: 0;
+}
+
+.detail-item:first-child {
+    padding-top: 0;
+}
+
+/* Quick Actions */
+.quick-actions {
+    display: grid;
+    grid-template-columns: 1fr 1fr;
+    gap: 12px;
+}
+
+.action-card {
+    background: var(--md-sys-color-surface-container);
+    border: 1px solid var(--glass-border);
+    border-radius: var(--radius-l);
+    padding: 20px;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 12px;
+    cursor: pointer;
+    transition: transform 0.1s;
+    user-select: none;
+}
+
+.action-card:active {
+    transform: scale(0.98);
+    background: var(--md-sys-color-surface-container-high);
+}
+
+.action-card span {
+    font-weight: 500;
+    font-size: 15px;
+}
+
+.icon-circle {
+    width: 48px;
+    height: 48px;
+    border-radius: 50%;
+    background: var(--md-sys-color-secondary-container);
+    color: var(--md-sys-color-on-secondary-container);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+}
+
+.icon-circle.pop {
+    background: var(--md-sys-color-primary-container);
+    color: var(--md-sys-color-on-primary-container);
+}
+
+/* Shop Items */
+.plans-list {
+    display: flex;
+    flex-direction: column;
+    gap: 12px;
+}
+
+.plan-card {
+    background: var(--md-sys-color-surface-container);
+    border-radius: var(--radius-l);
+    padding: 20px;
+    border: 1px solid var(--glass-border);
+}
+
+.plan-header {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    margin-bottom: 8px;
+}
+
+.plan-title {
+    font-size: 18px;
+    font-weight: 600;
+    color: var(--md-sys-color-on-surface);
+}
+
+.plan-price {
+    font-size: 20px;
+    font-weight: 700;
+    color: var(--md-sys-color-primary);
+}
+
+.plan-specs {
+    display: flex;
+    gap: 16px;
+    margin-bottom: 16px;
+    color: var(--md-sys-color-outline);
+    font-size: 14px;
+}
+
+/* Buttons */
+.btn-primary {
+    width: 100%;
+    height: 48px;
+    border-radius: var(--radius-pill);
+    border: none;
+    background: var(--md-sys-color-primary);
+    color: var(--md-sys-color-on-primary);
+    font-size: 14px;
+    font-weight: 600;
+    text-transform: uppercase;
+    letter-spacing: 0.5px;
+    cursor: pointer;
+    box-shadow: var(--elevation-1);
+    transition: box-shadow 0.2s;
+}
+
+.btn-primary:active {
+    box-shadow: none;
+}
+
+.btn-secondary {
+    width: 100%;
+    height: 48px;
+    border-radius: var(--radius-pill);
+    border: 1px solid var(--md-sys-color-outline);
+    background: transparent;
+    color: var(--md-sys-color-primary);
+    font-size: 14px;
+    font-weight: 600;
+    cursor: pointer;
+}
+
+.btn-small {
+    height: 40px;
+    padding: 0 20px;
+    border-radius: var(--radius-pill);
+    border: none;
+    background: var(--md-sys-color-primary-container);
+    color: var(--md-sys-color-on-primary-container);
+    font-weight: 600;
+    cursor: pointer;
+}
+
+/* MD3 Bottom Navigation */
+.bottom-nav {
+    position: fixed;
+    bottom: 0;
+    left: 0;
+    width: 100%;
+    height: 80px;
+    background: var(--md-sys-color-surface-container);
+    display: flex;
+    justify-content: space-around;
+    align-items: center;
+    border-top: 1px solid var(--glass-border);
+    z-index: 100;
+    padding-bottom: 10px;
+    /* Safe area */
+}
+
+.nav-item {
+    background: none;
+    border: none;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 4px;
+    width: 64px;
+    cursor: pointer;
+    color: var(--md-sys-color-outline);
+}
+
+.nav-item svg {
+    z-index: 2;
+    transition: all 0.2s;
+}
+
+/* Active Indicator (Pill) */
+.nav-item.active {
+    color: var(--md-sys-color-on-secondary-container);
+}
+
+.nav-item.active svg {
+    background: var(--md-sys-color-secondary-container);
+    border-radius: 16px;
+    padding: 4px 20px;
+    width: 64px;
+    box-sizing: content-box;
+    /* Stretch pill */
+    height: 24px;
+}
+
+/* Center FAB Override for 'Config' */
+.nav-item.center-fab {
+    transform: translateY(-20px);
+}
+
+.nav-item.center-fab .fab-bg {
+    width: 56px;
+    height: 56px;
+    background: var(--md-sys-color-primary-container);
+    color: var(--md-sys-color-on-primary-container);
+    border-radius: 16px;
+    /* Squircle */
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    box-shadow: var(--elevation-2);
+}
+
+/* Inputs */
+.glass-input {
+    width: 100%;
+    height: 56px;
+    border: 1px solid var(--md-sys-color-outline);
+    border-radius: 8px;
+    /* M3 text field */
+    background: var(--md-sys-color-surface);
+    color: white;
+    padding: 0 16px;
+    font-size: 16px;
+}
+
+.glass-input:focus {
+    border-color: var(--md-sys-color-primary);
+    border-width: 2px;
+    outline: none;
+}
+
+/* Profile */
+.profile-main {
+    align-items: center;
+    text-align: center;
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+    background: transparent;
+    border: none;
+    box-shadow: none;
+}
+
+.big-avatar {
+    width: 96px;
+    height: 96px;
+    background: var(--md-sys-color-primary-container);
+    color: var(--md-sys-color-on-primary-container);
+    border-radius: 50%;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 40px;
+    font-weight: 700;
+}
+
+.id-badge {
+    background: var(--md-sys-color-surface-container-high);
+    padding: 6px 12px;
+    border-radius: 8px;
+    font-family: monospace;
+    font-size: 12px;
+}
+
+/* List Menu */
+.list-menu {
+    border-radius: var(--radius-l);
+    background: var(--md-sys-color-surface-container);
+    border: 1px solid var(--md-sys-color-outline-variant);
+    overflow: hidden;
+}
+
+.list-item {
+    height: 56px;
+    display: flex;
+    align-items: center;
+    padding: 0 16px;
+    gap: 16px;
+    border-bottom: 1px solid var(--md-sys-color-outline-variant);
+    color: var(--md-sys-color-on-surface);
+    background: none;
+    border: none;
+    width: 100%;
+    position: relative;
+    overflow: hidden;
+}
+
+.list-item:hover {
+    background: rgba(255, 255, 255, 0.05);
+}
+
+/* Material Ripple Effect */
+.ripple {
+    position: absolute;
+    border-radius: 50%;
+    transform: scale(0);
+    animation: ripple 0.6s linear;
+    background-color: rgba(255, 255, 255, 0.3);
+    pointer-events: none;
+}
+
+@keyframes ripple {
+    to {
+        transform: scale(4);
+        opacity: 0;
+    }
+}
+
+/* Desktop Sidebar fix */
+@media (min-width: 769px) {
+    .bottom-nav {
+        display: none;
+    }
+
+    .app-layout {
+        display: flex;
+        max-width: 1200px;
     }
 
     .sidebar {
-        width: 100%;
-        height: auto;
+        display: flex;
+        flex-direction: column;
+        /* Ensure vertical layout */
+        background: var(--md-sys-color-surface-container);
+        border-right: 1px solid var(--glass-border);
+        width: 280px;
+        /* Wider standard drawer */
+        padding: 24px;
+        gap: 12px;
+    }
+
+    .content-area {
+        padding-bottom: 0;
+    }
+
+    .sidebar .nav-item {
         flex-direction: row;
-        padding: 12px;
-        align-items: center;
-        justify-content: space-between;
+        width: 100%;
+        height: 56px;
+        padding: 0 24px;
+        border-radius: 28px;
+        /* Full pill */
+        gap: 12px;
+        font-size: 14px;
+        font-weight: 500;
+        letter-spacing: 0.1px;
+        justify-content: flex-start;
     }
 
-    .sidebar nav {
-        display: none;
-        /* Mobile nav needs a toggle, simplifying for now */
+    .sidebar .nav-item:hover {
+        background: rgba(255, 255, 255, 0.03);
     }
 
-    .user-mini {
+    .sidebar .nav-item.active {
+        background: var(--md-sys-color-secondary-container);
+        color: var(--md-sys-color-on-secondary-container);
+    }
+
+    .sidebar .nav-item svg,
+    .sidebar .nav-item.active svg {
+        background: transparent;
         padding: 0;
-        border: none;
-        margin: 0;
+        width: 24px;
+        height: 24px;
+        box-sizing: border-box;
+        border-radius: 0;
     }
 
-    .stats-grid {
-        grid-template-columns: 1fr;
+    /* Hide FAB background on desktop sidebar if we reuse the same button */
+    .sidebar .fab-bg {
+        background: transparent;
+        width: auto;
+        height: auto;
+        box-shadow: none;
+        display: contents;
+        /* Treat children as direct children of button */
     }
 }
\ No newline at end of file
diff --git a/web_app/static/index.html b/web_app/static/index.html
index c477cb4..0e08793 100644
--- a/web_app/static/index.html
+++ b/web_app/static/index.html
@@ -3,128 +3,234 @@
 
 <head>
     <meta charset="UTF-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>Marzban Bot Dashboard</title>
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
+    <title>Comet VPN</title>
+    <script src="https://telegram.org/js/telegram-web-app.js"></script>
     <link rel="preconnect" href="https://fonts.googleapis.com">
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
-    <link href="https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap" rel="stylesheet">
-    <script src="https://telegram.org/js/telegram-web-app.js"></script>
-    <link rel="stylesheet" href="css/style.css">
+    <link href="https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap"
+        rel="stylesheet">
+    <link rel="stylesheet" href="css/style.css?v=2">
     <script src="https://unpkg.com/lucide@latest"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/qrcodejs/1.0.0/qrcode.min.js"></script>
 </head>
 
 <body>
     <div id="stars-container"></div>
+    <div class="glow-overlay"></div>
 
-    <div class="app-container">
+    <div class="app-layout">
+        <!-- Sidebar (Desktop) -->
         <aside class="sidebar glass">
             <div class="logo">
                 <i data-lucide="rocket" class="logo-icon"></i>
                 <span>CometBot</span>
             </div>
-            <nav>
+            <nav class="nav-menu">
                 <button class="nav-item active" data-page="dashboard" onclick="router('dashboard')">
-                    <i data-lucide="layout-dashboard"></i> Dashboard
+                    <i data-lucide="layout-dashboard"></i> <span>Dashboard</span>
                 </button>
                 <button class="nav-item" data-page="shop" onclick="router('shop')">
-                    <i data-lucide="shopping-bag"></i> Shop
+                    <i data-lucide="shopping-bag"></i> <span>Shop</span>
+                </button>
+                <button class="nav-item" data-page="subscription" onclick="router('subscription')">
+                    <i data-lucide="key"></i> <span>Config</span>
                 </button>
                 <button class="nav-item" data-page="profile" onclick="router('profile')">
-                    <i data-lucide="user"></i> Profile
+                    <i data-lucide="user"></i> <span>Profile</span>
                 </button>
             </nav>
-            <div class="user-mini">
-                <div class="avatar" id="sidebar-avatar">U</div>
-                <div class="info">
-                    <span class="name" id="sidebar-name">User</span>
-                    <span class="status">Online</span>
-                </div>
-            </div>
         </aside>
 
-        <main class="content">
-            <header class="glass">
-                <h1 id="page-title">Dashboard</h1>
-                <div class="actions">
-                    <button class="icon-btn"><i data-lucide="bell"></i></button>
-                    <button class="icon-btn theme-toggle"><i data-lucide="sun"></i></button>
+        <!-- Main Content -->
+        <main class="content-area">
+            <header class="mobile-header glass">
+                <div class="logo-mini">
+                    <i data-lucide="rocket"></i> Comet
+                </div>
+                <div class="user-chip" id="header-user">
+                    <div class="avatar-xs" id="header-avatar">U</div>
                 </div>
             </header>
 
             <div id="app-view" class="view-container">
-                <!-- Dynamic Content Loaded Here -->
                 <div class="loading-spinner"></div>
             </div>
+
+            <!-- Bottom Nav (Mobile) -->
+            <nav class="bottom-nav glass">
+                <button class="nav-item active" data-page="dashboard" onclick="router('dashboard')">
+                    <i data-lucide="layout-dashboard"></i>
+                </button>
+                <button class="nav-item" data-page="shop" onclick="router('shop')">
+                    <i data-lucide="shopping-bag"></i>
+                </button>
+                <button class="nav-item center-fab" data-page="subscription" onclick="router('subscription')">
+                    <div class="fab-bg"><i data-lucide="power"></i></div>
+                </button>
+                <button class="nav-item" data-page="profile" onclick="router('profile')">
+                    <i data-lucide="user"></i>
+                </button>
+                <button class="nav-item" onclick="openHelp()">
+                    <i data-lucide="help-circle"></i>
+                </button>
+            </nav>
         </main>
     </div>
 
-    <!-- Templates for Views -->
+    <!-- VIEW TEMPLATES -->
+
+    <!-- Dashboard -->
     <template id="view-dashboard">
-        <div class="stats-grid">
-            <div class="card glass stat-card">
-                <div class="icon-box <color>"><i data-lucide="activity"></i></div>
-                <div class="stat-info">
-                    <h3>Status</h3>
-                    <p class="value" id="dash-status">Active</p>
+        <div class="view-header">
+            <h1>Overview</h1>
+            <p class="subtitle">Welcome back, <span id="user-name">User</span></p>
+        </div>
+
+        <div class="status-card glass">
+            <div class="status-ring">
+                <svg viewBox="0 0 36 36" class="circular-chart">
+                    <path class="circle-bg"
+                        d="M18 2.0845 a 15.9155 15.9155 0 0 1 0 31.831 a 15.9155 15.9155 0 0 1 0 -31.831" />
+                    <path class="circle" id="data-ring" stroke-dasharray="0, 100"
+                        d="M18 2.0845 a 15.9155 15.9155 0 0 1 0 31.831 a 15.9155 15.9155 0 0 1 0 -31.831" />
+                </svg>
+                <div class="ring-content">
+                    <span class="value" id="dash-data-left">0</span>
+                    <span class="unit">GB Used</span>
                 </div>
             </div>
-            <div class="card glass stat-card">
-                <div class="icon-box"><i data-lucide="calendar"></i></div>
-                <div class="stat-info">
-                    <h3>Days Left</h3>
-                    <p class="value" id="dash-days">0</p>
+            <div class="status-details">
+                <div class="detail-item">
+                    <span class="label">Status</span>
+                    <span class="val status-badge" id="dash-status">Checking...</span>
                 </div>
-            </div>
-            <div class="card glass stat-card">
-                <div class="icon-box"><i data-lucide="wifi"></i></div>
-                <div class="stat-info">
-                    <h3>Data Usage</h3>
-                    <p class="value" id="dash-data">0 GB</p>
+                <div class="detail-item">
+                    <span class="label">Plan Details</span>
+                    <span class="val" id="dash-limit">0 GB Total</span>
+                </div>
+                <div class="detail-item">
+                    <span class="label">Expires</span>
+                    <span class="val" id="dash-expire">-</span>
                 </div>
             </div>
         </div>
 
-        <div class="section-title">
-            <h2>Your Subscription</h2>
-        </div>
-        <div class="card glass sub-details">
-            <div class="detail-row">
-                <span>Plan</span>
-                <strong id="sub-plan-name">Free Tier</strong>
-            </div>
-            <div class="detail-row">
-                <span>Expires</span>
-                <strong id="sub-expire-date">-</strong>
-            </div>
-            <button class="btn-primary full-width" onclick="router('shop')">Upgrade Plan</button>
+        <div class="quick-actions">
+            <button class="action-card glass" onclick="router('shop')">
+                <div class="icon-circle pop"><i data-lucide="zap"></i></div>
+                <span>Extend Plan</span>
+            </button>
+            <button class="action-card glass" onclick="router('subscription')">
+                <div class="icon-circle"><i data-lucide="qr-code"></i></div>
+                <span>Connect</span>
+            </button>
         </div>
     </template>
 
+    <!-- Shop -->
     <template id="view-shop">
-        <div class="plans-grid" id="plans-container">
-            <!-- Plans will be injected here -->
+        <div class="view-header">
+            <h1>Shop</h1>
+            <p class="subtitle">Choose your plan</p>
+        </div>
+        <div class="plans-list" id="plans-container">
+            <!-- Injected -->
         </div>
     </template>
 
+    <!-- Subscription -->
+    <template id="view-subscription">
+        <div class="view-header">
+            <h1>Connection</h1>
+            <p class="subtitle">Setup your VPN</p>
+        </div>
+
+        <div class="card glass center-content">
+            <div id="qrcode-container"></div>
+            <p class="helper-text">Scan availability QR Code</p>
+
+            <div class="copy-box" onclick="copyConfig()">
+                <div class="truncate-text" id="config-link">Loading...</div>
+                <i data-lucide="copy"></i>
+            </div>
+
+            <div class="sub-actions">
+                <button class="btn-secondary" onclick="copyConfig()">Copy Link</button>
+                <button class="btn-primary"
+                    onclick="window.Telegram.WebApp.openLink('https://apps.apple.com/us/app/v2box-v2ray-client/id6446814690')">
+                    Download App
+                </button>
+            </div>
+        </div>
+
+        <div class="accordion glass">
+            <div class="acc-item">
+                <div class="acc-head" onclick="toggleAcc(this)">
+                    <span>How to connect on iOS?</span>
+                    <i data-lucide="chevron-down"></i>
+                </div>
+                <div class="acc-body">
+                    <ol>
+                        <li>Install <b>V2Box</b> from AppStore.</li>
+                        <li>Copy the link above.</li>
+                        <li>Open V2Box, it will detect the link.</li>
+                        <li>Tap "Import" and Connect.</li>
+                    </ol>
+                </div>
+            </div>
+            <div class="acc-item">
+                <div class="acc-head" onclick="toggleAcc(this)">
+                    <span>How to connect on Android?</span>
+                    <i data-lucide="chevron-down"></i>
+                </div>
+                <div class="acc-body">
+                    <ol>
+                        <li>Install <b>v2rayNG</b> or <b>Hiddify</b>.</li>
+                        <li>Copy the config link.</li>
+                        <li>Open app -> Import from Clipboard.</li>
+                        <li>Connect (V button).</li>
+                    </ol>
+                </div>
+            </div>
+        </div>
+    </template>
+
+    <!-- Profile -->
     <template id="view-profile">
-        <div class="card glass profile-card">
-            <div class="profile-header">
-                <div class="big-avatar">U</div>
-                <h2>User Profile</h2>
-                <p>Telegram ID: <span id="profile-tg-id">123456</span></p>
-            </div>
-            <div class="form-group">
-                <label>Username</label>
-                <input type="text" id="profile-username" readonly value="@username" class="glass-input">
-            </div>
+        <div class="view-header">
+            <h1>Profile</h1>
+        </div>
+
+        <div class="card glass profile-main">
+            <div class="big-avatar" id="profile-avatar">U</div>
+            <h2 id="profile-name">User</h2>
+            <p id="profile-id" class="id-badge">ID: 000000</p>
+        </div>
+
+        <div class="section-title">Promo Code</div>
+        <div class="card glass promo-card">
+            <input type="text" id="promo-input" placeholder="ENTER CODE" class="glass-input">
+            <button class="btn-small" onclick="checkPromo()">Apply</button>
+        </div>
+        <div id="promo-result"></div>
+
+        <div class="list-menu glass">
+            <button class="list-item" onclick="window.Telegram.WebApp.openLink('https://t.me/hoshimach1')">
+                <i data-lucide="message-square"></i>
+                <span>Support</span>
+                <i data-lucide="chevron-right" class="arrow"></i>
+            </button>
+            <button class="list-item" onclick="alert('v1.0.0 Comet')">
+                <i data-lucide="info"></i>
+                <span>About</span>
+                <i data-lucide="chevron-right" class="arrow"></i>
+            </button>
         </div>
     </template>
 
     <script src="js/background.js"></script>
     <script src="js/app.js"></script>
-    <script>
-        lucide.createIcons();
-    </script>
 </body>
 
 </html>
\ No newline at end of file
diff --git a/web_app/static/js/app.js b/web_app/static/js/app.js
index 9619576..f504f85 100644
--- a/web_app/static/js/app.js
+++ b/web_app/static/js/app.js
@@ -1,183 +1,294 @@
-// Navigation Router
+// Navigation
 function router(pageName) {
     const viewContainer = document.getElementById('app-view');
-    const title = document.getElementById('page-title');
-    const navItems = document.querySelectorAll('.nav-item');
+    const template = document.getElementById(`view-${pageName}`);
 
-    // Update Nav
-    navItems.forEach(item => {
+    // Update Nav State
+    document.querySelectorAll('.nav-item').forEach(item => {
         if (item.dataset.page === pageName) item.classList.add('active');
         else item.classList.remove('active');
     });
 
-    // Set Title
-    title.textContent = pageName.charAt(0).toUpperCase() + pageName.slice(1);
-
-    // Load View
-    const template = document.getElementById(`view-${pageName}`);
+    // Swap View
     if (template) {
         viewContainer.innerHTML = '';
         viewContainer.appendChild(template.content.cloneNode(true));
-
-        // Initialize view specific logic
-        if (pageName === 'dashboard') loadDashboard();
-        if (pageName === 'shop') loadShop();
-        if (pageName === 'profile') loadProfile();
-
-        // Re-init generic UI stuff like icons if new ones added
-        if (window.lucide) lucide.createIcons();
     }
+
+    // Init Page Logic
+    if (pageName === 'dashboard') loadDashboard();
+    if (pageName === 'shop') loadShop();
+    if (pageName === 'subscription') loadSubscription();
+    if (pageName === 'profile') loadProfile();
+
+    // Lucide Icons
+    if (window.lucide) lucide.createIcons();
+
+    // Smooth Scroll Top
+    window.scrollTo({ top: 0, behavior: 'smooth' });
 }
 
-// Data Fetching
+// Global State
 const API_BASE = '/api';
+let currentState = {
+    user: null,
+    subUrl: ""
+};
 
-// Telegram Integration
-let tgUser = null;
-if (window.Telegram && window.Telegram.WebApp) {
-    const tg = window.Telegram.WebApp;
+// Telegram Init
+const tg = window.Telegram?.WebApp;
+if (tg) {
     tg.ready();
-    tgUser = tg.initDataUnsafe?.user;
-
-    // Theme sync
-    if (tg.colorScheme === 'dark') document.body.classList.add('dark');
-
-    // Expand
     tg.expand();
+    // Wrap in try-catch for header color as it might fail in some versions
+    try { tg.setHeaderColor('#0f172a'); } catch (e) { }
+
+    currentState.user = tg.initDataUnsafe?.user;
 }
 
-// Fallback for browser testing
-if (!tgUser) {
-    console.warn("No Telegram user detected, using mock user");
-    tgUser = { id: 123456789, first_name: 'Test', username: 'testuser' };
+// Dev Mock
+if (!currentState.user) {
+    currentState.user = { id: 123456789, first_name: 'Dev', username: 'developer' };
 }
 
-// Update UI with User Info
-const sidebarName = document.getElementById('sidebar-name');
-const sidebarAvatar = document.getElementById('sidebar-avatar');
-if (sidebarName) sidebarName.textContent = tgUser.first_name || tgUser.username;
-if (sidebarAvatar) sidebarAvatar.textContent = (tgUser.first_name || 'U')[0].toUpperCase();
+// Initial UI Setup
+const headerAvatar = document.getElementById('header-avatar');
+if (headerAvatar) {
+    headerAvatar.textContent = (currentState.user.first_name || 'U')[0].toUpperCase();
+}
+
+// ------ PAGE LOGIC ------
 
 async function loadDashboard() {
+    document.getElementById('user-name').textContent = currentState.user.first_name;
+
     try {
-        const res = await fetch(`${API_BASE}/user/${tgUser.id}`);
-        if (!res.ok) throw new Error("Failed to fetch user");
+        const res = await fetch(`${API_BASE}/user/${currentState.user.id}`);
         const data = await res.json();
 
-        const statusEl = document.getElementById('dash-status');
-        const daysEl = document.getElementById('dash-days');
-        const dataEl = document.getElementById('dash-data');
-        const planEl = document.getElementById('sub-plan-name');
-        const expireEl = document.getElementById('sub-expire-date');
+        if (data.error) throw new Error(data.error);
 
-        if (statusEl) statusEl.textContent = data.status;
-        if (daysEl) daysEl.textContent = data.days_left;
-        if (dataEl) dataEl.textContent = `${data.data_usage || 0} GB`;
-        if (planEl) planEl.textContent = data.plan;
-        if (expireEl) expireEl.textContent = data.expire_date;
+        // Update Text
+        document.getElementById('dash-status').textContent = data.status;
+        document.getElementById('dash-limit').textContent = `${data.data_limit_gb} GB`;
+        document.getElementById('dash-expire').textContent = data.expire_date;
+        document.getElementById('dash-data-left').textContent = data.used_traffic_gb;
 
-        // Colorize status
-        if (data.status === 'Active') {
-            document.querySelector('.stat-info .value').style.color = '#4ade80';
-        } else {
-            document.querySelector('.stat-info .value').style.color = '#f87171';
+        // Progress Ring
+        const circle = document.getElementById('data-ring');
+        if (circle) {
+            const limit = data.data_limit_gb || 100; // avoid div by zero
+            const used = data.used_traffic_gb || 0;
+            const percent = Math.min((used / limit) * 100, 100);
+
+            // stroke-dasharray="current, 100" (since pathLength=100 logic or simply percentage)
+            // standard dasharray for 36 viewbox is approx 100.
+            circle.setAttribute('stroke-dasharray', `${percent}, 100`);
+            circle.style.stroke = percent > 90 ? '#f87171' : '#6366f1';
         }
 
+        // Save sub url globally
+        currentState.subUrl = data.subscription_url;
+
     } catch (e) {
         console.error(e);
-        // Show error state?
+        document.getElementById('dash-status').textContent = 'Error';
     }
 }
 
 async function loadShop() {
     const container = document.getElementById('plans-container');
-    if (!container) return;
-
-    container.innerHTML = '<div class="loading-spinner">Loading plans...</div>';
+    container.innerHTML = '<div class="loading-spinner"></div>';
 
     try {
         const res = await fetch(`${API_BASE}/plans`);
-        if (!res.ok) throw new Error("Failed to fetch plans");
         const plans = await res.json();
 
         container.innerHTML = '';
         plans.forEach(plan => {
             const card = document.createElement('div');
-            card.className = 'card glass plan-card';
-
-            // Features list generation
-            const features = [
-                `${plan.data_limit} GB Data`,
-                `${plan.days} Days`,
-                'High Speed'
-            ];
-
+            card.className = 'glass plan-card plan-item'; // plan-item for animation
             card.innerHTML = `
-                <div class="plan-name">${plan.name}</div>
-                <div class="plan-price">${plan.price} XTR</div>
-                <ul class="plan-features">
-                    ${features.map(f => `<li>${f}</li>`).join('')}
-                </ul>
-                <button class="btn-primary" onclick="buyPlan('${plan.id}')">Buy for ${plan.price}</button>
+                <div class="plan-header">
+                    <span class="plan-title">${plan.name}</span>
+                    <span class="plan-price">${plan.price} ⭐️</span>
+                </div>
+                <div class="plan-specs">
+                    <span><i data-lucide="database"></i> ${plan.data_limit} GB</span>
+                    <span><i data-lucide="clock"></i> ${plan.days} Days</span>
+                </div>
+                <button class="btn-primary" onclick="initPayment('${plan.id}')">Purchase</button>
             `;
             container.appendChild(card);
         });
+        lucide.createIcons();
+
     } catch (e) {
-        container.innerHTML = 'Error loading plans.';
+        container.textContent = "Failed to load plans.";
     }
 }
 
-async function buyPlan(planId) {
-    if (!window.Telegram || !window.Telegram.WebApp) {
-        alert("Payment only works inside Telegram!");
-        return;
-    }
+async function initPayment(planId) {
+    if (!tg) return alert("Open in Telegram");
 
-    const btn = document.activeElement;
-    const originalText = btn.innerText;
-    btn.innerText = 'Creating Invoice...';
+    // Simple loader on button
+    const btn = event.target;
+    const oldText = btn.innerText;
+    btn.innerText = 'Creating..';
     btn.disabled = true;
 
     try {
+        const body = {
+            user_id: currentState.user.id,
+            plan_id: planId
+        };
+        if (currentState.promoCode) {
+            body.promo_code = currentState.promoCode;
+            // Reset after use or keep active? Bot usually resets. Let's keep it until refresh.
+        }
+
         const res = await fetch(`${API_BASE}/create-invoice`, {
             method: 'POST',
             headers: { 'Content-Type': 'application/json' },
-            body: JSON.stringify({
-                user_id: tgUser.id,
-                plan_id: planId
-            })
+            body: JSON.stringify(body)
         });
-
         const data = await res.json();
 
         if (data.invoice_link) {
-            window.Telegram.WebApp.openInvoice(data.invoice_link, (status) => {
+            tg.openInvoice(data.invoice_link, (status) => {
                 if (status === 'paid') {
-                    window.Telegram.WebApp.showAlert('Payment Successful! Subscription activated.');
+                    tg.showAlert('Successful Payment!');
                     router('dashboard');
-                } else if (status === 'cancelled') {
-                    // User cancelled
-                } else {
-                    window.Telegram.WebApp.showAlert('Payment failed or pending.');
                 }
             });
         } else {
-            window.Telegram.WebApp.showAlert('Error creating invoice: ' + data.error);
+            tg.showAlert('Error: ' + (data.error || 'Unknown'));
         }
-
     } catch (e) {
-        window.Telegram.WebApp.showAlert('Network error');
-        console.error(e);
+        tg.showAlert('Network error');
     } finally {
-        btn.innerText = originalText;
+        btn.innerText = oldText;
         btn.disabled = false;
     }
 }
 
-async function loadProfile() {
-    document.getElementById('profile-tg-id').textContent = tgUser.id;
-    document.getElementById('profile-username').value = '@' + (tgUser.username || 'unknown');
+async function loadSubscription() {
+    const linkEl = document.getElementById('config-link');
+    const fetchBtn = document.querySelector('.btn-secondary');
+
+    // If we don't have URL, try to fetch it again via user stats
+    if (!currentState.subUrl) {
+        try {
+            const res = await fetch(`${API_BASE}/user/${currentState.user.id}`);
+            const data = await res.json();
+            currentState.subUrl = data.subscription_url;
+        } catch (e) { }
+    }
+
+    const url = currentState.subUrl;
+
+    if (url) {
+        linkEl.textContent = url;
+        // Gen QR
+        const qrContainer = document.getElementById('qrcode-container');
+        qrContainer.innerHTML = '';
+        new QRCode(qrContainer, {
+            text: url,
+            width: 160,
+            height: 160,
+            colorDark: "#000000",
+            colorLight: "#ffffff",
+            correctLevel: QRCode.CorrectLevel.M
+        });
+    } else {
+        linkEl.textContent = "No active subscription found";
+        document.getElementById('qrcode-container').innerHTML = '<div style="width:160px;height:160px;background:rgba(255,255,255,0.1);border-radius:12px"></div>';
+    }
 }
 
-// Init
-router('dashboard');
+function copyConfig() {
+    if (currentState.subUrl) {
+        navigator.clipboard.writeText(currentState.subUrl);
+        if (tg) tg.showAlert("Link copied to clipboard!");
+        else alert("Copied!");
+    } else {
+        if (tg) tg.showAlert("No subscription to copy.");
+    }
+}
+
+function toggleAcc(header) {
+    const body = header.nextElementSibling;
+    body.classList.toggle('open');
+    const icon = header.querySelector('svg');
+    // Simple rotation logic if needed, or just rely on CSS
+}
+
+async function loadProfile() {
+    document.getElementById('profile-name').textContent = currentState.user.first_name;
+    document.getElementById('profile-id').textContent = `ID: ${currentState.user.id}`;
+
+    const avatar = document.getElementById('profile-avatar');
+    avatar.textContent = (currentState.user.first_name || 'U')[0].toUpperCase();
+}
+
+async function checkPromo() {
+    const input = document.getElementById('promo-input');
+    const resDiv = document.getElementById('promo-result');
+    const code = input.value.trim();
+
+    if (!code) return;
+
+    try {
+        const res = await fetch(`${API_BASE}/check-promo`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ code })
+        });
+
+        if (res.ok) {
+            const data = await res.json();
+            resDiv.innerHTML = `<div style="color:#4ade80; margin-top:8px">✅ ${data.description}. Apply at checkout!</div>`;
+            currentState.promoCode = data.code; // Save for checkout
+            tg.showAlert(`Promo valid! Discount: ${data.discount}%. Go to Shop to buy.`);
+        } else {
+            resDiv.innerHTML = `<div style="color:#f87171; margin-top:8px">❌ Invalid Code</div>`;
+        }
+    } catch (e) {
+        resDiv.textContent = "Error checking promo";
+    }
+}
+
+function openHelp() {
+    // Simple alert or modal. Using routing for now logic would be better if we had a help page.
+    alert("Support: @hoshimach1");
+}
+
+// Material Ripple Init
+document.addEventListener('click', function (e) {
+    const target = e.target.closest('button, .action-card, .plan-card'); // Select ripple targets
+    if (target) {
+        const circle = document.createElement('span');
+        const diameter = Math.max(target.clientWidth, target.clientHeight);
+        const radius = diameter / 2;
+
+        const rect = target.getBoundingClientRect();
+
+        circle.style.width = circle.style.height = `${diameter}px`;
+        circle.style.left = `${e.clientX - rect.left - radius}px`;
+        circle.style.top = `${e.clientY - rect.top - radius}px`;
+        circle.classList.add('ripple');
+
+        // Remove existing ripples to be clean or append? Append allows rapid clicks.
+        const ripple = target.getElementsByClassName('ripple')[0];
+        if (ripple) {
+            ripple.remove();
+        }
+
+        target.appendChild(circle);
+    }
+});
+
+// Start
+document.addEventListener('DOMContentLoaded', () => {
+    router('dashboard');
+});