feat: responsive desktop nav — icon-only on lg, icon+text on xl

Remove horizontal scroll from desktop top nav bar. Items now show
icons only at 1024-1279px with native tooltips, and icons+labels
at 1280px+. All 9 items fit on screen in any language without
scrolling.

src/components/layout/AppShell/AppShell.tsx

@@ -1,4 +1,4 @@
-import { useCallback, useEffect, useRef, useState } from 'react';
+import { useEffect, useState } from 'react';
 import { useLocation, Link } from 'react-router';
 import { useQuery } from '@tanstack/react-query';
 import { useTranslation } from 'react-i18next';
@@ -269,31 +269,6 @@ export function AppShell({ children }: AppShellProps) {
     haptic.impact('light');
   };
 
-  // Desktop nav scroll fade indicators
-  const navRef = useRef<HTMLElement>(null);
-  const [navCanScrollLeft, setNavCanScrollLeft] = useState(false);
-  const [navCanScrollRight, setNavCanScrollRight] = useState(false);
-
-  const updateNavScroll = useCallback(() => {
-    const el = navRef.current;
-    if (!el) return;
-    setNavCanScrollLeft(el.scrollLeft > 2);
-    setNavCanScrollRight(el.scrollLeft + el.clientWidth < el.scrollWidth - 2);
-  }, []);
-
-  useEffect(() => {
-    const el = navRef.current;
-    if (!el) return;
-    updateNavScroll();
-    el.addEventListener('scroll', updateNavScroll, { passive: true });
-    const ro = new ResizeObserver(updateNavScroll);
-    ro.observe(el);
-    return () => {
-      el.removeEventListener('scroll', updateNavScroll);
-      ro.disconnect();
-    };
-  }, [updateNavScroll]);
-
   // Calculate header height based on fullscreen mode (only on mobile Telegram)
   // On iOS: contentSafeAreaInset.top includes status bar + dynamic island + Telegram header
   // On Android: safeAreaInset.top only includes status bar, need to add Telegram header height (~48px)
@@ -342,89 +317,76 @@ export function AppShell({ children }: AppShellProps) {
           </Link>
 
           {/* Center Navigation */}
-          <div className="relative min-w-0">
+          <nav className="flex min-w-0 items-center gap-0.5">
-            {/* Left fade */}
-            <div
-              className={cn(
-                'pointer-events-none absolute bottom-0 left-0 top-0 z-10 w-6 bg-gradient-to-r from-dark-950/95 to-transparent transition-opacity duration-200',
-                navCanScrollLeft ? 'opacity-100' : 'opacity-0',
-              )}
-            />
-            {/* Right fade */}
-            <div
-              className={cn(
-                'pointer-events-none absolute bottom-0 right-0 top-0 z-10 w-6 bg-gradient-to-l from-dark-950/95 to-transparent transition-opacity duration-200',
-                navCanScrollRight ? 'opacity-100' : 'opacity-0',
-              )}
-            />
-            <nav ref={navRef} className="scrollbar-hide flex items-center gap-1 overflow-x-auto">
             {desktopNavItems.map((item) => (
               <Link
                 key={item.path}
                 to={item.path}
                 onClick={handleNavClick}
+                title={item.label}
                 className={cn(
-                    'flex shrink-0 items-center gap-2 whitespace-nowrap rounded-lg px-3 py-2 text-sm font-medium transition-colors',
+                  'flex items-center gap-1.5 rounded-lg px-2 py-1.5 text-xs font-medium transition-colors',
                   isActive(item.path)
                     ? 'bg-dark-800 text-dark-50'
                     : 'text-dark-400 hover:bg-dark-800/50 hover:text-dark-200',
                 )}
               >
-                  <item.icon className="h-4 w-4" />
+                <item.icon className="h-3.5 w-3.5 shrink-0" />
-                  <span>{item.label}</span>
+                <span className="hidden xl:inline">{item.label}</span>
               </Link>
             ))}
             {referralEnabled && (
               <Link
                 to="/referral"
                 onClick={handleNavClick}
+                title={t('nav.referral')}
                 className={cn(
-                    'flex shrink-0 items-center gap-2 whitespace-nowrap rounded-lg px-3 py-2 text-sm font-medium transition-colors',
+                  'flex items-center gap-1.5 rounded-lg px-2 py-1.5 text-xs font-medium transition-colors',
                   isActive('/referral')
                     ? 'bg-dark-800 text-dark-50'
                     : 'text-dark-400 hover:bg-dark-800/50 hover:text-dark-200',
                 )}
               >
-                  <UsersIcon className="h-4 w-4" />
+                <UsersIcon className="h-3.5 w-3.5 shrink-0" />
-                  <span>{t('nav.referral')}</span>
+                <span className="hidden xl:inline">{t('nav.referral')}</span>
               </Link>
             )}
             {giftEnabled && (
               <Link
                 to="/gift"
                 onClick={handleNavClick}
+                title={t('nav.gift')}
                 className={cn(
-                    'flex shrink-0 items-center gap-2 whitespace-nowrap rounded-lg px-3 py-2 text-sm font-medium transition-colors',
+                  'flex items-center gap-1.5 rounded-lg px-2 py-1.5 text-xs font-medium transition-colors',
                   isActive('/gift')
                     ? 'bg-dark-800 text-dark-50'
                     : 'text-dark-400 hover:bg-dark-800/50 hover:text-dark-200',
                 )}
               >
-                  <GiftIcon className="h-4 w-4" />
+                <GiftIcon className="h-3.5 w-3.5 shrink-0" />
-                  <span>{t('nav.gift')}</span>
+                <span className="hidden xl:inline">{t('nav.gift')}</span>
               </Link>
             )}
             {isAdmin && (
               <>
-                  {/* Separator before admin */}
+                <div className="mx-1 h-4 w-px shrink-0 bg-dark-700" />
-                  <div className="mx-2 h-5 w-px shrink-0 bg-dark-700" />
                 <Link
                   to="/admin"
                   onClick={handleNavClick}
+                  title={t('admin.nav.title')}
                   className={cn(
-                      'flex shrink-0 items-center gap-2 whitespace-nowrap rounded-lg px-3 py-2 text-sm font-medium transition-colors',
+                    'flex items-center gap-1.5 rounded-lg px-2 py-1.5 text-xs font-medium transition-colors',
                     location.pathname.startsWith('/admin')
                       ? 'bg-warning-500/10 text-warning-400'
                       : 'text-warning-500/70 hover:bg-warning-500/10 hover:text-warning-400',
                   )}
                 >
-                    <ShieldIcon className="h-4 w-4" />
+                  <ShieldIcon className="h-3.5 w-3.5 shrink-0" />
-                    <span>{t('admin.nav.title')}</span>
+                  <span className="hidden xl:inline">{t('admin.nav.title')}</span>
                 </Link>
               </>
             )}
           </nav>
-          </div>
 
           {/* Right side actions */}
           <div className="flex items-center justify-end gap-2">